Cross section of a Bosch magneto ignition system, 1897

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American Bosch Parts

They were well made and had many similarities to products made in the German werks in Stuttgart. Craftsmanship was a bit more utilitarian in appearance. Here is a postcard showing the modern and spacious Bosch magneto Company in Springfield, Mass before WW1, probably or

50 Antique Vintage Tractor Magneto American Bosch Magneto help you date your Bosch Magneto – the serial numbers by year are below.

Germany Application my a, , ]. The object of the present invention is the lubrication of these spiral springs. During the travelling period the convolutions of the spiral spring are repeatedly drawn together and ten. This layer provides the further advantage that the spring is rendered more flexible, be-. The layer also increases the stability of the spring inasmuch as the oscillations caused by quick tensioning and releasing are damped.

Figure 1 is a plan view 0! Figure 2 is a plan view of a double spiral spring. Figure 3 is a longitudinal section of a spiral spring installed in a snapper coupling. F A grease or oil saturated strip of fibre 2 is laid along a spiral spring 1, shown in Fig.

US1925621A – Snapper coupling for magnetos – Google Patents

Production of the 3 horsepower type ‘M’ engines began in and continued through the Great Depression until see figure The very first few 3 horsepower ‘M’s used only one pushrod. Both exhaust valve and ignitor were operated by this single pushrod, which was quickly discontinued. The two push rod version was then adopted.


This invention concerns an ignition system for an internal combustion engine of the kind powered by a magneto generator that does not require the interposition of a storage battery in the system and incorporates engine speed limiting by intermittent suppression of ignition. A known system of this type is disclosed in German patent publication DE-OS 27 51 in which two monostable multivibrator circuits, commonly referred for short as “monoflops”, connected one behind the other, are utilized for engine speed limiting.

The output of the last monoflop is connected, along with the output of an electronic control apparatus for ignition timing, to the control input of an interruptor switch through an AND-gate. When the maximum permissible engine speed is overstepped, the AND condition of the gate is no longer satisfied and ignition is thereby suppressed. For repetitively turning on the monoflops and triggering the control apparatus, a separate control transducer is provided that is driven by the engine, and a voltage supply separate therefrom is necessary for energizing the ignition system.

The system just described has the disadvantage that in the case of a magneto ignition system a supplemental control transducer is required in addition to the magneto generator supplying the supply voltage, because the trigger pulses for the monoflops must be produced at regular intervals dependent upon the engine speed.

Dating Bosch Magnetos

Featuring Steam engines, early gas tractors, stationary engines, threshing machines, water wagons, tractors, implements, steam whistles, gauges, parts, and MORE!!! Very nice. Bosch DU4 Model 4 Magneto, missing parts. Robert Bosch Magneto ZU4. Missing parts and stuck. Has been rebuilt.

New Way Engines especially for the models of Bosch and National Magnetos. This can be used to determine the date of the magneto and consequently the.

Lot 1 Sale Order: 1 of Lot 2 Sale Order: 2 of Lot 3 Sale Order: 3 of Lot 4 Sale Order: 4 of Lot 5 Sale Order: 5 of Lot 6 Sale Order: 6 of Lot 7 Sale Order: 7 of Lot 8 Sale Order: 8 of Lot 9 Sale Order: 9 of Lot 10 Sale Order: 10 of Lot 11 Sale Order: 11 of

Ignition & Electrical Parts

The young Robert Bosch did all the precision-mechanical and electrical-engineering work that came his way in order to keep his business running. For the most part, this involved installing low-voltage equipment such as telephone terminals, electric bells, door openers, remote electrical water-level indicators, and later pneumatic tube pipelines and electric lighting.

Yet despite this extensive portfolio, orders were often sparse during the early years, leaving Bosch struggling to keep his workforce busy and pay their wages. Still, he wanted to do the best he could by them. Sometimes on Friday afternoon, he had to ask a neighboring wealthy shop owner for money tio pay his workers. In addition, he needed more capital to invest in modern equipment for his workshop.

Most of the work we do involves magnetos as fitted to Veteran, Vintage and Classic machines. This includes all types of Stationary Engines, Tractors, Boats.

Great Shape. Here is an old Bosch ZE1 one cylinder magneto. It seems to be in great shape and it makes a really hot spark. The bearings are nice and tight and the mag turns over smoothly. Please take a look at the pictures and see if you need it. Passer au contenu principal. Information sur la photo. Passer la souris au-dessus de l’image pour l’agrandir – Cliquez sur l’image pour l’agrandir. Magasinez en toute confiance. Garantie de remboursement eBay.

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Magneto or Coil Ignition for Motor-Cars

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American Bosch Parts. You are here: Home1 / Shop2 / Products3 / C. Distributors & Magnetos4 / Magneto Parts5 / American Bosch Parts.

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Bosch Magneto Veteran Era

The history of Bosch starts with many first steps. The step into independence, onto the automotive market, into markets outside Germany, and onto the factory floor of major manufacturing. His apprentice and journeyman years awoke an early desire in Robert Bosch to be self-employed. The early years were beset with highs and lows, and it was only from the mids on that things took off quickly and unstoppably.

Antique American Bosch Magneto Corp Ambotone Reproducer Patent Date Speaker | Collectibles, Radio, Phonograph, TV, Phone, Radios | eBay!

More than years ago, Bosch achieved the breakthrough in modern automotive technology: The world’s first high-voltage magneto was created at the Stuttgart works in This replaced the then commonly used ignition systems such as glow tubes and naked flames. The gasoline engine became more powerful and safer – a real impetus for the automotive industry. On 7th January Bosch were awarded a patent on their spark plug and this marked the start of the success story.

To date Bosch have developed more than 20 types of spark plug. Although the ingenious operating principle of the spark plug developed by Bosch has never changed in the course of years, its performance has steadily improved. Imprint Legal Privacy. Best Brand Wipers App. Trade fairs and events Contact. Marginal Column. Success and quality since Bosch spark plugs make history. Facts from years of experience: Bosch invented the spark plug Bosch manufacture more than million spark plugs every year The same high quality standards apply to production throughout the world.

IHC Engine Dating Guide

Order by:. Available to:. American Bosch Magneto 4 cylinder with adapter collar.

Read American Bosch Magneto Corporation v. by such manufacturer, producer​, or importer, within six months after the date of the payment of the refund, to the.

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Cross section of a Bosch magneto ignition system, for press purposes free of charge with credit “Picture: Bosch” Stay up to date.

Thanks to Craig Lewis of Parksville, B. Featured on this page is an example of an original non-script slant pole ignition coil. On other smaller distributor parts such as points and plates, the American Bosch logo was a helmeted racing driver’s face overlaid on a stylized round ‘AB’. Standard Products ‘SP’ was another supplier for some production quantities.

The wire terminals on this coil point outward, away from the nipple, giving rise to the commonly used ‘slant pole’ description. The coil has a steel rain cap crimped over the top of the rolled can seam, as found on all original Model A coils. The coil bracket is spot welded to the can on all original Model A coils. The lockform seam faces the firewall and is not visible when installed on the car.

The lower nipple end cap joint is soldered to the can. As shown above and below, this coil bracket has a supplier date code of ‘4 8’ signifying April In later production, Ford required all its electrical component suppliers to use a different uniform alpha-numeric date coding system.

Converting a Farmall With a Magneto To Run With a Coil

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