US1550775A

US1550775A - Engine starter

Info

Publication number: US1550775A
Application number: US180562A
Authority: US
Inventors: Bendix Vincent
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-07-14
Filing date: 1917-07-14
Publication date: 1925-08-25
Anticipated expiration: 1942-08-25

Description

Aug. 25, 1925. 1,550,775

V. BEN DIX ENGINE STARTER Filed July 14. 1917 v @51u00 nto? l y f E I l d Mr gm my M 4% uw Patented Aug. 25, 1925.

UNITED STATES PATENT OFFICE.

VINCENT BENDIX, OF CHICAGO, ILLINOIS.

ENGINE STARTER.

Application filed July 14,

To all whom t may concern:

Be it known that I, VINCENT BENDIX, a citizen of the United States, residing at Chicago, in the county of Cool; and State of Illinois, have invented certain new and useful Improvements in Engine Starters, of which the following is a specification.

My invention relates to that class of engine starter exemplified in patents heretofore issued to me, for instance, Patent No. 1,125,935 issued January 26, 1915, and No. 1,172,864 issued February 22, 1916, which starter is characterized by a prime mover, such as an electric motor, and a transmission or drive operating on the screw shaft principle for transmitting the. power of the motor to a member of the engine to be started, such as the fly wheel thereof. This drive includes a driving shaft operated either directly or indirectly by the motor, and a pinion indirectly operated thereby and having relative movement, both rotary and longitudinal with respect thereto.

The object of my invention is to provide a simple, efficient and reliable transmission or drive of a general character described and of somewhat dilferent construction as compared with the drives of said patents.

In the drawing Fig. 1, is a sectional elevation of the drive embodying my invention and Fig. 2 a sectional elevation on the line 2-2 of Fig. l.

Before describing in detail the selected embodiment of my invention as shown, I wish it understood that the drive may be of either the single or double reduction type, and while have herein shown the former type, I do not wish to be underst-ood as limiting myself thereto. Referring to the construction illustrated, the starting motor partially shown at A is provided with a driving shaft 1 which is here the extended armature shaft. rlhe outer end of this shaft' is bored and tapped for a certain distance to provide the Vinternally screw threaded/ portion 1a, receiving the screw threaded shaft 2. This screw shaft is provided with a collar 3 which may be either integral therewith or separate and secured thereto.

The driving member or pinion 4 is loosely mounted upon the shaft 1 and has relative movement therewith, both longitudinal and.

rotary. This pinion is adapted to mesh with the teeth 5a of the fly wheel 5 of the engine to be started. The pinion and the collar 3 are operatively connected by means of the 1917. Serial No. 180,562.

yielding driving connection which is here-v in the form of a coiled spring 6, one end of which is anchored to the collar by means of the bolt 7 and the other end of which is anchored to the collar portion 8 of the pinion by means of the stud 9. The pinion and screw shaft are held in assembled position with respect to the shaft 1 in a suitable manner, as by means of a stop collar 10 secured on to the outer end of the shaft 1 after the pinion has been assembled in place on that shaft.

Describing the operation o-f the drive and starting with the normal position with the parts as shown, when the motor is operated the shaft 1 is rotated with the result that the screw shaft is drawn inwardly within the shaft and towards the motor, and the pinion 4 thereby advanced into mesh with the fly wheel. lVhen the pinion has fully meshed with such fly wheel and its longitudinal movement has been stopped by the contact of the collar 3 against the right hand end of the shaft 1, the pinion will partake of the rotary movement transmitted from` the driving shaft and through the screw shaft, collar 3, driving spring 6 and pinion collar 8. In the event that the pinion teeth should abut the fly wheel teeth end to end, the pinion will yield by momentarily stopping, such result being due to the fact that although the screw shaft will continue to move to the left, such movement will not advance the pinion for such moment, but will be taken up by reason of the spaces between the coils of the springs. lWhen the spring is compressed it begins to rotate the pinion, the slight movement of the pinion will bring the teeth into register and permit the` proper meshing. i/Vhen the engine starts on its own power the pinion will be automatically demeshed. 5

I claim:

1. The combination of ahdriving shaft, a driven shaft supported thereby'vand '"coperating therewith and having a longitudinal movement thereof and a rotary movement therewith, a driving` member mounted independently of the driven shaft, andxa'dr'iving means connected respectively with said driven shaft and said driving member and constituting the powg/ rl transmitting connectioirbetwynwthe'nwinntlie'diiivg operation. f

2. The combination of a driving shaft, a driven shaft supported thereby and cooperating therewith and having a longitudinal movement thereof and aA rotary movement therewith, a drivinrf' member' loosely mounted upon said driving shaft, and a driving means connected respectively with said driven shaft and said d iving nien'iber and constituting the power transmitting connection between them in the driving operation.

3. The Combination of a driving shaft, driven shaft supported thereby and cooperating therewith and having a longitudinal movement thereof and a rotary movement therewith, a driving member, and a yielding driving means connecting between said driven shaft and said driving member and constituting thepower and transmittiiiA neetion ltweenhenr'inth'efd vi -i-'flJ'The Combination of a drivin@1 shaft, a driven shaft supported thereby and cooperating therewith and having a longitudinal movement thereof and a rotary movement therewith, said two shafts being in axial alignment, a driving member mounted independently of the driven shaft, and a driving connection connecting the driven shaft and the driving member and constituting the power transmitting Connection between them in the driving` operation.

5. The combination of a driving and a driven shaft. in axial alignment and threaded one on the other, the de' shaft having longitudinal .movement with respect to the driving shaft amL rotary movement therewith, a driving member loosely mounted upon said driving shaft, and driving means connected with said driven shaft and said driving member and constituting the power transmitting connection between them in the driving operation.

6. The Combination of a driving andi-a driven shaft in axial alignnient and serowthreaded one on the other, the driven shaft having longitudinal i'noveinent with respect to the driving` slnift and rotary movement therewith, a driving member, a yielding driving means Connecting between the driven shaft and the driving member and eonstituting the power transm tting Connection between them in the driving operation.

7. The Combination of a driving and driven shaft in axial ali 4 nient and screwthreaded one on the other, the driven shaft having longitudinal movement with respect to the driving shaft and `wtary movement therewith, a driving member mounted on the driving shaft and Capable of longitudinal movement thereof and rotary movement therewith, and drivin means Connected respectively with the dr fen shaft and the driving member and constituting the power transmitting connection between them in the driving operation.

8. The combination of a driving and a driven shaft in axial alinement and screwthreaded one on the other, the driven shaft having longitudinal movement thereof and rotary movement therewith, a driving member mounted on the driving shaft and capaile of loirgitudinal movement thereof and f movement therewith, and means for hitting the movements of the driven ving member.

9. The eomlgiination of a driving shaft havin@ an internally serew-threaded bore at its o ter nd, a serew sii/aft received by said bore, a dri member mounted on the driving!l shaft for relative movement thereof, botl lon: ial and rotary, antL also for rotary therew'lh, and a driving means d resneetively with the screw shaft .th the driving meuiber and constituting); the power transl itting connection between them in the di: g operation.

lo. 'Ihe combination of a driving shaft l Q, serew-threaded bore at n a seiya-w shaft received by driving member mounted on the for relative movement thereof, ndinal and rotary, and also roinent t ierewith, and means for 1e movements of the serew member. rlfhe eon'ihination of a drivingl shaft an internally screw-threaded bore at ts outer end, a screw shaft received by said oore, a driving member mounted on the driving `sha ft for rolati movement thereof, both `longitudiual and Aiotarj-f, and also r0- t i d ri ving sin both lo inv inffivement therewith, and yielding drivig means eoimeeting between the screw iaft and drii n' member.

l2. The coin. ination of a driving shaft having an internally screw-threaded bore at its` outer end, a Sil/aft reeeived by said lore, a driving member mounted on the .lriving sl aft for relative movement thereof both longitudinal und rotary, und also ro- 'tz lent thmfewith, and a spring driv- `weon the f-:erew-shal't and drivintly meunier.

13. The combination of a driving shaft having an internally screw-threaded bore at its outer end, a screw shaft ref; ived by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement thereivith, and means for transmitting the movements of the screw shaft to the pinion.

T he combination of a driving shaft havin an internally screw-threaded bore at its outer end, a serew shaft re'leeived by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also 'rotary movement therewith, and a yielding driving eonneetion between the screw shaft and the pinion.

l5, The combination of a driving shaft having an internally screw-threaded bore at its outer end, a screw shaft received by said lili bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, and a spring forming the driving connection between the screw shaft and pinion.

16. The combination of a driving/"shaft having an internally screw-threadedf'bore at its outer end, a, screw shaft received by said bore, a pinion mounted on the shaft fo-r relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, the screw shaft having a collar at one end, and a yielding driving connection between such collar and pinion.

17. The combination of a driving` sha t having an internally screw-threaded bor at its outer end, a screw shaft received by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, the screw shaft and the pinion each having an enlargement at one end, and a yielding driving Connection between such enlargements.

18. The combination of a drivinof/ shaft having an internally screw-threadedoore at its outer end, a screw shaft received by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, the screw shaft and the pinion each having an enlargement at one end, and a spring connected to said enlargements and forming the yielding driving connection bef tween the screw shaft and pinion.

19. The combination of a drivingv4 shaft having aninternally screw-threadediorte at its outer end, a screw shaft received by said bore, a driving member mounted on the driving shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, means for stopping the longitudinal movement of said member towards normal position, and means for transmitting the movements from the screw shaft to the pinion.

20. The combination of a driving/'shaft having an internally screiv-threacled`-bore at its outer end, a screw shaft received by said bore, a driving member mounted on the drivingshaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, means for stopping the longitudinal movement of said member towards normal position consisting of an enlargement on the driving shaft in the path of movement of such member, and means for transmitting the movements of the screw shaft to the pinion.

21. The combination of a driving shaft having an internally screw-threadedf-bore at its outer end, a screw shaft received by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, means for stopping the longitudinal movement of the pinion towards normal position, and means for transmitting the movements of the screw shaft to the pinion. 2Q.. The combination of a driving shaft having an internally screw-threadedbore at its outer end, a screw shaft received by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, means for stopping the longitudinal movement of the pinion towards normal position, and` a yielding driving connection between the screw-shaft and the pinion.

23. The combination of a driving ,shaft having an internally screw-threadedfbore at its outer end, a screw shaft received by said bore, a pinion mounted on the shaft for relative movement thereof, both longitudinal and rotary, and also rotary movement therewith, said driving shaft having at its outer end an enlargement to stop the outward longitudinal movement of the pinion and means for transmitting movement of the screw shaft to the pinion.

24. The combination of a driving shaft and a driven shaft in axial alinement and serew-threaded/o/ne on the other for longitudinal movement of the driven shaft with respect to the driving shaft and its rotary movement therewith, a driving member mounted on the drive shaft for relative movement thereof and rotary movement therewith, and means operatively connected with said driven shaft and said member for transmitting the movements of the driven shaft to such member.

VINCENT BENDIX.