Replica ebike - 1881

Lock said:
This is the best image I have found so far for Gustaves single-rotor machine:

Pretty sure Gustave was working without ball bearings too... :(

Other early designs for dynamos etc just has journal (aka "sleeve") bearings. Maybe a bronze bushing? but that's it. Larger machines often show small reservoirs mounted overtop of the bearing to gravity feed oil to the bearings. Guessing Gustave just kept an oil can handy...

Seems likely Gustaves ebike ran on electrons plus lots of sperm:
SpermOil.png

All seems kinda wierd... from Wikipedia:
http://en.wikipedia.org/wiki/Bearing_(mechanical)#History
A patent on ball bearings, reportedly the first, was awarded to Jules Suriray, a Parisian bicycle mechanic, on 3 August 1869. The bearings were then fitted to the winning bicycle ridden by James Moore in the world's first bicycle road race, Paris-Rouen, in November 1869.

Friedrich Fischer's idea from the year 1883 for milling and grinding balls of equal size and exact roundness by means of a suitable production machine formed the foundation for creation of an independent bearing industry.

Maybe by 1880 (good) ball/roller bearings were still very rare and expensive...
LoCk
 
STILL trying to understand the bit about the shape of Gustaves rotor:

a new electric motor based on the eccentricity of the Siemens coil flange
Siemens coil, used by Mr. Marcel Deprez, is cylindrical and it is therefore always the same distance from the poles, that of Trouve offers a cross-section showing two half-spirals, so that in its rotation, the iron s approach gradually the magnetic pole to move away then suddenly when the reversal of currents. It's still a provision similar to one he had already combined and that we described on page 109. Trouve think thus avoid a particular disadvantage. It is necessary in previous engines to run the coil or at least move it so that the movement should arise, or else the poles are located exactly opposite each other, the device is, as they say, "so death "and not starting. The asymmetrical arrangement Trouve mitigates this defect. The helical coil is also a very pale, and a distortion of 1 mm. sufficient to obtain the desired effect. It may be noted also that the winding of electromagnets has a particular shape, instead of winding the wire around the two branches, as in the machine Ladd-Deprez, there is only one winding on the yoke soft iron, which met '* these two branches.
It sounds like he introduced a little rotor skew to make it self starting.
To smooth out the torque pulsations (called cogging), he also skewed the slot in each rotor slightly.
I have suppressed these periods of indifference and increased the useful effect of the machine, by modifying the shape of the bobbin; the polar faces, instead of being portions of a cylinder of which the axis coincides with that of the system, are of a snail form, so that on turning they gradually approach their surfaces towards those of the magnet, up to the moment when the hinder edge leaves the pole of the magnet. The action of repulsion then commences, so that the dead point is practically got rid of.
Figs. 3, 4, 5, are varieties of the motor, in which M. Trouve has arrived at good results by making the inductor excentric, instead of the armature.
Trouve_rotor.jpg
In the Trouve motor these idle periods are removed, and the useful effeet of the apparatus is increased by modifying the coil; the polar faces, instead of being parts of a cylinder, the axis of which coincides with that of the whole system, are made spiral, so that in turning they approach gradually to the surface of the magnet, up to the moment when the rear edge passes the pole of the magnet. The action of repulsion then commences and the dead points are practically suppressed.

I dunno watt sort of escargot Gustave was eating but I don't see "snail" here :)

In the version illustrated above looks like he made the armature asymetrical and from this perspective rotation would be clockwise?

Plus I gather the winding slot was not exactly parallel to the shaft but maybe "corkscrewed" slightly a degree or two to reduce cogging?

Anyway. Current thinking is to go with the twin rotors, I suspect Gustave started with one in 1880 then moved to two in 1881 for more power(?) and to reduce cogging/facilitate self-starting. Plus I think twin rotors looks cooler... 8)

...and a "case" of Faure jellyroll cells in glass jars with parallel-series switching for both charging and discharging...

LocK
 
BTW there are about 300,000 web pages that describe this as the first "car":
BenzPatentMotorwagen_1885.jpg

...or this the first "motorcycle":
Gottlieb_Daimler_motorcycle_580x.jpg


...and Karl and Gottlieb didn't hit the road until about 1885, some years after Gustave was already motoring around Paris on his ebike. Karl and Gottliebs' rides were also noisy and smelled funny. So it'd be nice to see those web pages updated.
:wink:
 
Lock said:
...it's easy to see that Gustave added a platform to mount the cells behind him.

Now I'm thinkin' Gustave didn't have to do as much mods on the trike as I thought:
EDIT: Except this Parcels Express version has the backet on the FRONT...
Rudgr_Coventry.jpg

This machine has been brought out to meet the demand for a Tricycle which can be used for the purpose of conveying Parcels, Papers, &c. It is capable of carrying 150lbs., exclusive of the weight of the Rider. It is built after the same style as the Central Gear, and therefore retains all the advantages of that Machine. If not required as a Carrier, the Basket can be easily detached, leaving it a perfect single machine. Weight, including Basket, 85lbs.

:)

L0cK
 
Dang... looks like the Imperial War Museum has (had?) one up for auction:
http://www.classic-auctions.com/Auc...m-1184/c1884CoventryRotaryTricycle-25188.aspx
CoventryRotar_c1884.jpg
Lot Number: 33
c1884 Coventry Rotary Tricycle
Not Sold

The Ordinary had created a new cycling fad during the late 1800's. Unfortunately most people couldn't or just wouldn't dare to ride them so manufacturers had to come up with new designs for safer and easier machines to ride.

One of the first of these new designs was James Starley's Coventry Lever tricycle of 1876, which incorporated his patented tangent spokes. A year later, he replaced the lever drive with a continuous chain, and the Coventry Rotary was born. A further patent in 1877 for a differential gear, which was incorporated into his Salvo Quadricycle, allowed the driving wheels of a tricycle to turn at different speeds when cornering.

Although Rudge took over manufacture of the Coventry Rotary from Starley & Sutton from 1885, the name was retained in Rudge catalogues up until production ceased in 1892.

This example, dating from circa 1884, has come from a private museum collection and appears to be in good condition. It has a 48" driving wheel with 20" turning wheels and is fitted with a Middlemores Type M leather saddle, stirrup steering ratchet handle, open link chain, left hand band brake lever and mounting step to the right side.

CoventryChain.jpg

From the pdf "Auction Sales 10/10/2007"
CoventryDetails.jpg

:D
L0Ck
 
TylerDurden said:
They seem to have made quite a few configurations of drivetrain.

Yah... Hard to tell the age of this tintype:
RudgeTintype.jpg

...but the trike appears to have pedals connected to a chain(?) that's over to one side next to the large wheel. Probably explains why Rudge called the "normal"/more modern-style/other pics here their "Center Gear" model of Coventry Rotary... This could be the "Lever" trike that they only made in 1876 apparently (why the guy's lookin' so freakin' cocky on his fancy new trike...) :lol:

But still doesn't look quite right compared to that one pic (woodcut?) of Gustave on his trike. No idea of course when/where Gustave bought the trike, new, used, wattever...

Hmmm
LocK
 
http://picasaweb.google.com/flyingdutchman63/DavisCaliforniaBikeMuseumPics#5266830144221471746
Here's the most unique and curious machines in the collection; a Conventry Rotary tandem from 1879. Highly unusual engineering and features the first chain-driven drive train plus several other firsts for the industry. Steering is by twisting the shovel-like handles which move the 2 smaller wheels; the large wheel drives the rig.
Coventry_1879.jpg

Just wish Gustave had bought the two-seater...
:D

Combo chain *and* ..."Lever"(?) drive.
1oCk
 
More here about these trikes (NICE site btw):
http://triporteurs.wordpress.com/page-3-history-of-tricycles/
On November 18, 1876, James Starley introduced the Coventry Lever Tricycle, a side-driven two-track, lever-driven machine, and that started the tricycling craze in Great Britain. It had two small wheels on the right side, that both steered simultaneously. A large drive wheel was on the left side. In 1877, he introduced the Coventry Rotary, one of the first rotary chain drive tricycles.

In 1879, twenty types of tricycles and multi-wheel cycles were produced in Coventry, England, and by 1884, there were over 120 different models produced by 20 manufacturers. Tricycles were used especially by those who could not ride high wheelers, such as women who were confined in the long dresses of the day, and short or unathletic men.

From 1881 to 1886 in Great Britain, more tricycles were built than bicycles, but this was primarily a class phenomenon, since tricycles were more expensive, perceived as more genteel, and the upper classes had the disposable income to buy them for the women in the family. As a result, tricycling remained popular in Great Britain long after riders turned away from them elsewhere. They even had regular racing. By the 1990s, that was no longer true, and many British manufacturers stopped making them.

In the United States, tricycles are used primarily by older persons for recreation, shopping, and exercise. In Asia and Africa, tricycles are used primarily for commercial transportation.

The tricycles produced from 1876 to 1884, of which Starley’s Coventry Rotary is the most famous example, are considered first generation tricycles, and showed a wide variety of inventiveness as the best design was sought. There were many two track tricycles with side steering built to operate on rutted doubletrack roads.

By 1885, the second generation of tricycles had appeared. The Humber Cripper, named for professional racer Robert Cripps, was typical. It had the modern pattern of two rear wheels with a front wheel bisecting their track. Front wheels were usually about 18 to 24 inches in diameter, the rear wheels were usually about 40 inches. The wheelbase was about 32 inches, as was the track width, and they weighed about 75 pounds, although racing models were about 40 pounds.

The third generation of tricycles are like today’s, and the 1892 Starley Psycho was one of the first. All of its wheels were of equal size, in this case, 28 inches. By 1900 however, the pneumatic tired safety bicycle took away most of the tricycle business since it provided an adequate amount of stability for most riders. Except for having modern bicycle components added, the tricycle has not really evolved in any substantial way since the turn of the 19th century.
 
Seen here:
http://triporteurs.wordpress.com/page-1-tricycles-v-bicycles-predated-cars-v-motorcycles/
1884 Plectocycle Front-Steering Tricycle
Being some of the first vehicles fitted with a differential gear, high wheeler tricycles such as this were the forerunner of the automobile.
Plectocycle_1884.jpg
This reproduction 19th century tricycle has been designed around the 1884 Plectocycle. It has been very well manufactured in the authentic style, with original components, is fully functional, and it’s hard to tell it apart from an original 1880s tricycle.

Once you get used to the idea of steering a tricycle via a lever, you find it surprisingly easy to drive. You hold the left-hand lever and steer it with the right. Compared to the later conventional style of tricycle, I find it very well balanced.

L
 
Don't like saying this, but this is watt I suspect Gustave modified:
Starley_Coventry_1876.jpg

It's the 1876 Starley Coventry...

It does have some "right-looking" pedal levers, but it's still not exact `cause Gustave looks like he had the "stirrup" steering handle at his side and not watt looks like a long tiller on the Starley...

file.php


The two smaller wheels on the `76 Starley look better proportioned too (larger compared to the large wheel)

So no "proper" pedals... Ah well, just throw a few more Faure cells in the battery rack :twisted:
 
Bit of Starley history:
http://www.answers.com/topic/james-starley
Around 1855 Starley got a job with Newton Wilson in London, where he worked on sewing machines. Within a few years, he moved to Coventry to work as foreman of the Coventry Sewing Machine Company. Starley spent the next dozen or so years working out improvements to the early sewing machine, including his own invention, "The European." His inventions, many of which were patented, survive in the workings of modern sewing machines.

In 1868 Starley saw his first bicycle, a French velocipede. Bicycles had been around since 1818, but the earliest two-wheeled, rider-propelled machines were rudimentary, requiring the rider to use his own feet to move the wooden monster along. The bicycle Starley encountered had cranks attached to the front wheel, which the rider could use to propel the machine. These early bicycles weighed as much as 160 pounds and had solid rubber tires and ball bearings.

Foreshadowing their future success in bicycle design, development, and sales (of which the Coventry region would eventually become a national leader), the Coventry Sewing Machine Company became the Coventry Machinists' Company in 1869 after worker Rowley B. Turner convinced management to produce bicycles. The company manufactured 400 bicycles for sale in France, but the outbreak of the Franco-German War made such export impossible, and so it turned to England for its market. Thus, Starley shifted his creative inventing energy from sewing machines to bicycles, seeking to improve the machines, first aiming to reduce the massive weight and clumsiness of the velocipedes, which had earned the nickname of "boneshakers." Within a few years, Starley had invented the "C Spring and Step Machine," or the Coventry Model, and secured his place as the father of the modern bicycle.

The Coventry bicycle featured a curved spring seat, a mounting step, and a small hind wheel. Next, Starley developed a bicycle with a smaller still rear wheel and large front wheel, both fashioned from iron and wire spokes. This creation was tagged the "penny-farthing," after England's smallest and largest copper coins. Its major improvement was a gear that turned the wheel twice for every revolution of the pedals, cutting the riders' work in half.

Bike Advances and the Masterpiece

Improving further on his initial designs, Starley invented the Ariel bicycle. After leaving the Coventry Machinists' Company in 1870, he went into business for himself and began producing his Europa sewing machines and Ariel bicycles. Historians consider the Ariel, a lightweight all-metal bicycle first sold in 1871, to be the first true bicycle. It was the first self-propelled two-wheeler to use pivot-center steering, which gave the bicycle the ability to turn, a leap in technology from the forward and reverse movements that limited the earlier wooden machines.

Next, Starley introduced what was to be his most significant contribution to bicycle advancement. His Tangent bicycle, introduced in 1874, was the first to feature alternating spokes. Starley's original wheels arranged the spokes in a straight line. Alternating spokes connected the spokes to the hub at an angle, easing the stress on individual spokes and making the wheels far stronger than earlier models. Starley's tensioned spoke wheels are found, virtually unmodified to this day, on nearly every contemporary bicycle. The Tangent bicycle weighed in at about 50 pounds, although 21-pound custom-made racing versions were soon available.

In 1876 Starley produced the Coventry Tricycle, a successful new invention that featured a double-throw crank, chains that drove the bike's wheels, and a rack.
Combining all of his previous advancements into one four-wheeled machine, Starley next produced the Salvo which many of his contemporaries believed to be his creative masterpiece.

Starley's nephew John Kemp Starley "went on to design the Rover Safety Cycle, which has formed the basis of the shape of the bicycle ever since," wrote Anthony Hopker in the Coventry Evening Telegraph. The Rover, introduced in 1885, featured a triangular frame, equal-sized wheels, and chain drives. Manufacture of the Rover launched Coventry into the forefront of bicycle production. Starley's sons, James, John Marshall, and William, carried on the family business as Starley Brothers, a cycle manufacturing outfit.

Legacy

James Starley died on June 17, 1881, in Coventry, Warwickshire. Among his lasting contributions is the reputation of Coventry as the cradle of bicycle production. Since 1884 the community has displayed a granite monument to Starley featuring his profile, carvings of two of his bicycles, and a statue of Fame on top. The site of his factory is now home to the Museum of British Road Transport.

By the 1970s Starley's statue had fallen into disrepair. Starley's nose and Fame's arms were broken off. Further, vandals attacked the statue during a renovation project. Townspeople mounted a campaign to save the memorial, calling in descendants of the original Victorian-era craftspeople for consultation and considering a proposal to move the statue to a more prominent location near Starley's original factory. "When you think of what Coventry used to produce," Coventry resident Edna Walker told Hopker, "it's so sad that their work is not being appreciated."

In 1999 the town of Coventry launched a campaign to commemorate the most important people in the town's 1,000-year history, soliciting nominations from towns-people. Starley's 57 votes ranked him the third most important native, behind Sir Frank Whittle, who invented the jet engine, and Provost Howard, who ran the Coventry Cathedral, but ahead of eleventh century heroine Lady Godiva and Coventry native William Shakespeare, who garnered only 14 votes.
 
From the book Cycles and cycling by Harry Hewitt Griffin, L. C. Davidson
1890
Early in 1877, Starley thought there was scope for a tricycle, and, striking out on altogether original lines, produced, through Haynes and Jefferies, what was known as the Coventry Lever Tricycle. We had the good fortune to be in Coventry in the January of that year, just after the experimental machine had been completed. It was apart in the workshop, but was put together, taken out, and, on a neighbouring road, the present writer had the satisfaction of being the first to try it, except three or four belonging to the firm who had been on it. We have already said the machine was different from any other. On the left side there was a wheel of 50 inches; on the right, two 20-inch wheels connected by a long steel tube, both being steered by a ball-chain handle. Driving was accomplished by long (and horridly awkward) levers; the seat was supported by springs over the cross-piece above the cranked axle (see Fig. 14). This set the ball rolling in a new direction. The long-continued demand for a tricycle was at last met; but, instead of the makers trying to bring them up level with bicycles of the day, they were years behind, and continued so until quite recently. The Coventry Lever was first advertised in the Bicycling News, March 9, 1877, but attention had been called to it in the Bazaar, on February 3.
Coventry_Lever_1877.jpg
Fig. T4.— The Coventry lever tricycle (the first modem tricycle, 1877).

Turns out this was the trike that started a trike craze. At one point there were more trikes on the roads (UK) than bicycles. It won a lot of trike races (in the years after it was changed to "rotary"...)

Lots of debate about watt was better for trikes, front steering or back, and many trike designs came and went but the Coventry Rotary remained very popular for many years. It was only 30" wide which made it easier to get indoors etc. Many other trikes were wider and employed complicated telescoping mechanisms to make them narrower if needed. Trikes were considered as "suitable" bikes for women...

I think this is probably why Gustave chose to convert a Coventry Lever. The trike was only three years old but the lever pedal design were already way out of date and never good to begin with. Trikes were considered "high end" and were expensive, but Gustaves Coventry Lever probably wasn't worth as much any more. He didn't care whether it pedalled well or not, `cause he was using it only for testing and showing off his motors!

Sprung seat looks comfy :)
Lock
 
Turns out the London Science Museum has one in their collections... from here:
http://objectwiki.sciencemuseum.org.uk/wiki/Coventry_Lever_Tricycle
Coventry Lever Tricycle
Manufacturer Haynes & Jefferies
Production years 1876
Production location UK
This is a two-track tricycle patented by J Starley in 1876, and was the most popular of the single-driving tricycles. It was at just made with lever gearing, which was soon changed to chain drive.

How it works
The frame, which is of solid iron, consists of a longitudinal member carrying at each end a small wheel mounted in an ordinary fork, which swivels in a plain hole in the frame member. The large side wheel is attached to the frame by a stub axle mounted in another member attached to the side bar. The seat is carried on two fat springs, which are attached to the frame holding the side wheel.

The driving mechanism consists of medals attached to levers, which are in turn attached to levers, which are in turn attached to the cranks by lengths of chain, which act as connecting rods in tension, and so pull the ranks round.

Steering is by a handle attached to the forward small wheel, which is cross coupled by link motion to the small wheel so that both steer together, but with opposite angularities.

The side wheel, which has tangent spokes, is 50 in, diam., the front and back small wheels being 24 in. diam. Solid rubber tyres are fitted to all wheels. The track is 26 inch and the wheel base in 5ft.the stroke of the crank is 8 in., whilst the pedals are mounted on the levers 21 in. long. The overall length is 7ft., and width 3ft.

The machine was originally purchased from Messrs. Haynes & Jefferies on 1st July, 1878 and cost £10 23s 2d.
Coventry_Lever_Tricycle_1876big.jpg

I understand the chains were used to adjust the pedals for different leg lengths... Still haven't figured out how pulling on the chain (stepping on the lever) makes the axle spin as the axle doesn't appear bent along its length that I can see. Anybuddy here from the UK? Close to South Kensington in London?

Turns out too that Starley received a patent for the trike - Brit patent No. 4478, 1876. But the UK Intellectual Property Office only has their patents online back to the early 1900's.

tks
LocK
 
I'm confident the drive-axle has the kinks in it to serve as a crankshaft... the chains or connecting rods (methinks they used rods earlier) have suitable angles.

It seems the electrified trike in the illustration is from the point in evolution before drive-cogs, but after the tiller was abandoned.
 
TylerDurden said:
I'm confident the drive-axle has the kinks in it to serve as a crankshaft... the chains or connecting rods (methinks they used rods earlier) have suitable angles.
`spect yer correct TD. With Starley coming from his background in sewing machine manufacture:
Treadle.jpg

It seems the electrified trike in the illustration is from the point in evolution before drive-cogs, but after the tiller was abandoned.

Ya. Must have been.

I'm just awed by this ebike. The donor trike a unique design by James Starley termed the father of the modern bicycle that gave us tangential wire spokes, the differential gear and the Rover safety bicycle... then in the hands of Gustave Trouvé who was called the Edison of France... the first of Camille Faure's batteries, pretty much the same design of lead acid battery still used today... it's a real nexus.

While the single drive (only one wheel driven) caused skewing problems with other trikes, the long wheelbase and the fact all three wheels were load-bearing on the Starley trike apparently minimized this problem. The fact that it was only a "two-track" compared to all the other trike designs meant it only had to deal with 2/3 of the cart tracks and other obstacles on the rough roads back then. Even before the Parcels Express version the trike had a reputation for having lots of space for stowing luggage and cargo. Looks like they ditched the bench seat in favour of a "proper" bicycle seat fairly early on too. The first year model really was a clunker :)

Lock
 
Report on the motor Gustave was showing off at the Exposition internationale d'Électricité held in Paris, 1881. Originally published in La Science Populaire. Journal hebdomadaire illustré (Popular Science. Illustrated weekly newspaper) December 8, 1881.

(poorly translated from the original French)
M.Trouve, which we have already described the batteries and machine, explained a small motor he invented in 1880.

From the engine consists of a coil between a Siemens rotating electro-magnet horseshoe. To avoid dead spots, the inventor has changed the coil Siemens. Pole faces, instead of portions of a cylinder whose axis coincides with that of the system are shaped cochlea, so that they turn their surfaces gradually approaching those of the magnet, until the trailing edge drops the pole of the magnet. The repulsive action begins. The break is avoided.

The electromagnet consists of an inductor coil horizontal, two vertical poles and flourishing in a semicircle.

Between these semicircles that rotates the spool Siemens amended. The current of a battery or machine crosses the son of the coil and the electromagnet.

Just another reference to the snail shell shape of his rotor and confirms series-wound. Wonder why he wasn't showing off his twin-rotor machine at the show...
LocK
 
More from the report on the Exposition internationale d'Électricité held in Paris, 1881. Originally published in La Science Populaire. Journal hebdomadaire illustré (Popular Science. Illustrated weekly newspaper) December 22, 1881. This report was serialized over many issues of the weekly magazine. FINALLY the writer gets around to the practical applications for all the generators and batteries and motors he was reporting on in earlier episodes...

(poorly translated from the original French)
Applications include engines that we have to cite is the direction of balloons.

Gaston Tissandier explained on this model a small balloon driven by a Trouve motor and Plante batteries. Gaston Tissandier reached its lead balloon in the still air of a room. He was able, with a secondary cell weighing 1 kgr. 200, run his balloon for more than 40 minutes. These experiments demonstrated that the direction of balloons, in a calm, was not a utopia, but a fact that we could achieve. "Indeed, under current conditions," said Gaston Tissandier in Nature (No. 13 August 1881), "The dynamo-electric can give six horsepower under a weight of about 300 kg with 900 kg secondary elements. It would be easy to remove this material with you, with a total weight of 1,200 kilograms, in a balloon stretched from 3000 cubic meters, inflated with hydrogen."

"The balloon would be 40 meters long and 13m 50 in diameter of the middle and it would weigh with all rigging, from 1000 to 1200 kilograms, it esterait therefore more than 1000 kilograms for passengers and ballast. For a calm time, this balloon, powered by a propeller 5 to 6 meters in diameter, would have an airspeed of 20 miles an hour. It certainly would work only for a limited time, but it would take between experiments demonstration quite decisive."

This project seems very feasible, and we join with pleasure in the work of Mr.Tissandier, wishing him to succeed without difficulty.

M.Trouve, we described the clever little engine, applied it to navigation. It can be seen running at Royal bridge a canoe, "Le Téléphone", powered by electricity.

The first experience of an electric boat in 1839. She was executed on the Neva by Jacobi. Since at that time, electricity was not very advanced, the experiment does not successful.

M.Trouve has taken this experience and his small boat works perfectly. The skiff, powered by the engine, can carry three people.

The engine gives motion to a propeller with three branches, using a Vaucanson chain. The electric motor consists of two Trouve machines, placed on the rudder. With this arrangement, course changes are made very easy because, by turning the rudder is rotated along the axis of the propeller, then the derivative action contributes to the rotation. Electricity comes to the engine by two flexible metal conductors, covered with cotton, which are used together to operate the rudder. The two engines work together or separately, as desired. They are powered by two big box of six potassium bichromate cells each. The experience of M.Trouve is very interesting, but it's still an experience, and I think we should wait much longer before we can count as the practical application of electricity to canoes or ships.

For this application to be possible, would require a battery light, energetic, economic, constant, requiring little care and maintenance, and this battery is still to be discovered, will be much longer, unfortunately.

These reports aren't illustrated, but I have a couple of pics of the Tissandier brothers model balloon:
Tissandier_1881.jpg

Tissandier_1881a.jpg

If ya look carefully ya can see it flying around inside the Exposition building:
Paris_1881aa.jpg

Fun toy Gaston! (How the heck did ya control it??? Tethered?)


Anyway, this tells me a few things... Gustave didn't show off his twin-rotor machine to the reporter `cause it was still installed on Le Téléphone! She was giving rides around a dinky artificial pond they had made for the Exposition that circled the base of the electric lighthouse shown in the pic above.

And I know Gustave was experimenting with only running one rotor at a time on his two-rotor motor. Does that make sense? Would there have been two separate magnetic circuits in the way it was constructed?

And I know his power wires were wrapped in cotton for insulation.

And he was using Vaucanson chain... this stuff:
Vaucanson.jpg

tks
LoCk
 
Make magazine Volume 17 had an amusing article about Gustave, done in the style of an interview of questions with answers "in his own words". One excerpt (Gustave talking):


Pretty sure Make got it wrong about Gustaves trike being a Rotary :roll: :lol:
Also pretty sure he was already on the road by 1880 maybe with his one rotor motor and Plante cells...
Lock
 
Ad for the Lever from July, 1877:

Although the Coventry Lever is often referred to as an 1876 trike, Haynes and Jefferis (makers of Starleys' designs under licence) didn't first advertise the trike until March 1877, so this July ad is "early days" for the Lever. I have read that the Coventry manufacturers hadn't made the leap from iron to steel until the end of the 1870's so I was pleased to see that "...all of the principal parts are made of the best steel." :)
tks
l0cK
 
I really, REALLY shouldn't be doing motor design :mrgreen:

But this is a circuit diagram I can sorta understand:
efb63253194.gif


From this page that has a section on series motors:
http://zone.ni.com/devzone/cda/ph/p/id/53#toc0

It talks about the scary stuff I have been reading about series motors, like:
A series motor should never drive machines with a belt. If the belt breaks, the load would be removed and cause the motor to over speed and destroy itself in a matter of seconds.

Scary stuff aside, watt I've been trying to find out is watt wire Gustave was using for his armature and field coil... size and type of insulation.

Watt I'm reading about for dynamos and motors circa late 1870's are insulating materials like silk and cotton for wiring, simple paper soaked in paraffin for insulation between winding layers etc, ivory and wood so it's kinda cool to see that ya can still buy silk-covered copper wire today eg:
http://www.evita.lt/en/?pid=catalogue&action=search&keyword=silk&submit=Search

...but most of this modern silk-covered stuff looks pretty tiny. If I understand series motors the field winding should be of large wire size... Thinking I can buy off-the-shelf for the armature coils and "roll my own" large wire from bare copper and silk cloth for the field coil. Any motor designers out there?

I've have noticed mentions about designs for speed governors being developed, some based on existing designs for steam engines, but wasn't paying attention... must go back and re-read, but I don't see that Gustave had any such provision for his trike or boat?

Given the nature of the series motor, looks like Gustave might have had his Faure cells wired up for low volts and high amps...
tks
Lock
 
Gonna file this under "Armature Construction" as I was wondering... From Wikipedia:
In small armatures a solid drum is often used simply for ease of construction, since the core can be easily formed from a stack of stamped metal disks keyed to lock into a slot on the shaft

That sounds super-easy... :D
Wonder if Gustave built this way?

Lock
 
TylerDurden said:
I'd fake it and have the hidden inrunner drive the faux rotors. :mrgreen:
I admit I'm torn :)

Sortta enjoying the low-tech of it all though... actually thinkin' I can roll my own cells - literally - and charge with a Gramme dynamo :lol:

LocK
 
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