US1013977A

US1013977A - Traction-engine gearing.

Info

Publication number: US1013977A
Application number: US55857010A
Authority: US
Inventors: Edwin M Wheelock
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-04-30
Filing date: 1910-04-30
Publication date: 1912-01-09
Anticipated expiration: 1929-01-09

Description

E. M. WHEELOGK. TRACTION ENGINE GEARING. APPLICATION FILED Ammo, 1910.

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COLUMBIA PLANouRAmi; co., WASHINGTON, n. c.

Patented J an. 9, 1912.

. pr s'rar TRACTION-ENGINE GEARING.

Specification of Latters Patent.

Patented Jan. 9,1912.

Application filed April 30, 1910. Serial No. 558,570.

To all whom it may concern:

Be it known that I, EDWIN M. WHEELOGK, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Traction-Engine Gearing, of which the following is a specification.

My invention relates to gearing for traction engines, and its main object is improvement of the speed-changing and reversing devices.

My improvements are illustrated in the accompanying drawings, in which Figure 1 is a plan view of a tractionengine embodying my improvements. Fig. 2 is an enlarged plan View of the speedregulating and reversing devices shown in the middle portion of Fig. 1. Fig. 3 is a view similar to Fig. 2 but showing the speed-regulating devices in different positions. Fig. 4 is a horizontal sectional view of the gearing devices of Figs. 2 and 3, but showing them in different positions of adjustment from either of those views. Fig. 5 shows a vertical sectional elevation on the line z2 of Fig. 4. Fig. 6 is an enlarged view of the left hand portion of Fig. 4. And Figs. 7 and 8 are detail views of the hanger for supporting the reversing pinion.

In the drawings the reference numeral 1 designates the framework of a traction engine; 2 the traction wheels; 3 the steering wheels on a divided axle 4, which are operated in the usual way; 5 an explosive engine; 6 the fan; 7 the heat-radiator; 8 the explosive-engine shaft; 9 the fly-wheel thereon; 10 the chain-drive connecting the shaft 8 with a sprocket-wheel 11 or a pinion 12 on a driving-shaft 13, which shaft, by means of the devices hereinafter described, serves to drive a counter-shaft'14 that carries the pinions 15 for engaging the gearwheels 16 on the axle of the traction wheels to propel the machine. On the opposite end of the shaft 13 is a pulley 17 for receiving a belt to transmit power to a threshing or other machine when the traction engine is stationary.

The parts so far designated may be of any usual or suitable construction, for my improvements relate to the means for transmitting motion, at variable speeds, from the driving-shaft 13 to the countershaft 14, for

reversing the motion of the latter, and for.

driving the shaft 13- independently of the shaft 14. The gearing for the purpose is i mounted on the

shafts

13 and 14 and on an intermediate idler shaft 18.

On the shaft 13 is a long loose sleeve 19 that is ournaled in a box 2O on the frame 1 and carries on its outer portion the pulley 17. A shoulder 21 on the sleeve at the inner side and a collar 22 at the outer side of the box 20 prevent lengthwise movement of the sleeve. On portions of the sleeve are

cogs

23 and 24, and between such toothed portions is a smooth cylindrical portion 25 of smaller diameter than the toothed portions. The inner end of the sleeve 19 is provided with a fixed clutch member 26 and on the shaft 13 is keyed the sliding clutch member 27 for engaging the fixed member 26 to rotate the sleeve. The slidable member 27 is connected by a link or rod 28 to one of the arms of a bell-crank 29 that is fulcrumed at 30 to a diagonal bar 31 attached at one end to the enginecab 32 and at the other to a standard 33 rising from a frame crosspiece 34; and the bell-crank 29 is rocked by a rod 35 connected to its other arm and extending rearward into the cab to position to be conveniently operated by means of a lever 36 by the driver of the machine. By reciprocating the rod 35 to and fro the driver can shift the loose clutch member and so control the rotation of the sleeve as he may desire. The shaft 18 is also mounted on the top of the frame 1 in boxes 37, and also carries a long loose sleeve 38 on which are cast or secured the transmission and change-

speed gears

39, 40, and 41. The gear-whee1 39 is adapted to engage the toothed portions of the sleeve 19 and to be disengaged therefrom while registering with the recessed portion 25, and the sleeve 38 is slidable and adjustable along the shaft 18.

Below and in mesh with the pinion 41 is an idler pinion 42 that is journaled in the opposite sides of an inclined hanger attached to the sleeve, the function of the pinion 42 being to reverse the direction of movement of the machine. The hanger sides straddle the pinion 41, the side beattached by bolts 48. The lower end of the hanger is loosely fitted between transverse guide-ways 49 attached to suitably lnclined bars 50 supported from the frame-work sides, so that the hanger can be moved freely in transverse direction. The hanger, and with it the sleeve 38, may be moved to and fro along the idler shaft 18 by the operation ofa bell-crank 51 that is fulcrumed at 52 to the bar 31. One lever arm is connected by a link 53 to an upwardarm 54 on the hanger, and the other lever arm is connected to a rod 55 that extends rearward into the cab where a suitable operating lever 56 is provided for reciprocating it.

On the shaft 14 is a loose sleeve 57 which carries the differential gearing and the journal-boxes 58, which are provided with roller-bearings 59, for this shaft are beneath the side-pieces of the frame 1 and suspended therefrom by

hangers

60 and 61, so that the shaft is below the plane of the

shafts

13 and 18. One of the pinions 15 is held on the shaft by a key 62 while the other is held loosely in place by a pin 63 extendmg through the projecting end of the shaft. Collars 64 and 65 at the inner sides of the boxes, the former held in place on the sleeve and the latter on the shaft by set-screws 66, prevent lengthwise movement of the shaft or the sleeve 57.

The inner end of the sleeve 57 carries a bevel-gear 67, and an opposite corresponding bevel-gear 68 has its hub 69 secured to the shaft bya key 70, so that the former gear serves to turn the sleeve on the shaft and the latter to turn the shaft. Between these bevel-gears and in engagement therewith are three or more bevel pinions 71 on short radially-arranged shafts 72, the outer ends of which are journaled in boxes 73 secured on the inner face of the rim 74 of a spur gear 75, and the inner ends are journaled in boxes 76 supported on the web or spokes 77 of the gear 75. These parts constitute a differential gearing of a well known type and enable the traction wheels to revolve at different speeds in moving the machine in curved courses forward or backward.

For the purpose of changing the speed at which the pinions 15 are driven, the rim 74 of the wheel 75 has a lateral extension 78 provided with flanges 79 by means of which it is secured by bolts 80, and the wheel 75 is connected, to the web or spokes 81 of a larger spur gear 82, which rotates freely around the hub of the bevel-gear 68.

The parts of the gearing described are so arranged that when the gear-Wheel 39 is in position to register with the space 25 between the sets of

cogs

23 and 24 on the sleeve 19, as shown in Fig. 4, the machine will remain stationary and the pulley 17 may be utilized for transmitting power to some other machine. If from that position the gear 39 be moved to engagement with the inner set of cogs 23, as shown in Fig. 1, it will also engage the gear 75 and thereby rotate the pinion or counter-shaft 14. If the gear 39 be moved to engage the outer set of cogs 24, as shown in Fig. 2, the movement of the sleeve will bring the gear 40 into engagement with the gear 82, and thereby change the speed of the shaft 14. And if the gear 39 be moved still farther outward, as shown in Fig. 3, the idler pinion 42 will be brought to engagement with the gear 82 and reverse the direction of rot-ation of the shaft 14.

In use, the operator is able to control the rotation of the sleeve 19 as desired by reciprocating the rod 35, and to utilize the power for propelling the engine or driving a second machine by suitable reciprocation of the rod 55 to move the gear 39 to or away from engagement with the cogs of that sleeve. The speed of movement of the machine he can change by meshing the

gears

39 and 75 or the

gears

40 and 82, and the direction of movement by meshing the pinion 42 with the gear 82. Under all of these conditions of movement, whether forward or backward, the differential gear devices attached to the

gears

75 and 82 will perform their function of enabling the traction wheels to revolve at different speeds while the machine is moving in curved courses.

Having described my invention, what I claim and desire to secure by Letters Patent 1s- 1. In a traction engine, a driving shaft, a power transmission sleeve on said shaft having thereon two pinions, a countershaft, driving gears thereon, a clutch for connecting the sleeve to rotate with the driving shaft, an idler shaft, an idler sleeve thereon provided with gears adapted to be placed in or out of mesh with said driving gears, one of said idler gears being adapted to mesh with the pinions on the transmission sleeve, and means to position said idler sleeve so that said last named gear will mesh with either one or the other of said pinions on the transmission .sleeve thereby effecting driving connection for rotating the countershaft at different speeds.

2. In a traction engine, a driving shaft, a power transmission sleeve on said shaft having thereon two pinions, spaced apart so as to leave an intermediate portionof the sleeve free from gearing, and a driving pulley, a countershaft, change-speed gearing adapted to connect said countershaft with said power transmission pinions including a gear adapted to mesh with either of said pinions, a clutch for connecting the sleeve to rotate with the driving shaft, and means to position said I gear so as to mesh with either of said pinions or to occupy a position in said intermediate portion of the sleeve between said pinions.

3. In a traction engine, a driving shaft, a power transmission sleeve on said shaft, two pinions thereon, spaced apart so as to leave an intermediate portion of the sleeve free from gearing, a driving pulley on said shaft, a clutch for connecting the sleeve to rotate with the drivingshaft,a countershaft,,a plurality of gears thereon, and slidable means intermediate said countershaft and said transmission pinions for connecting the latter with each of said gears or permitting said transmission sleeve to be disconnected therefrom.

4:. In a traction engine, a driving shaft, a power transmission sleeve on said shaft having thereon two pinions, a countershaft, a plurality of gear wheels connected thereto, an intermediate idler shaft, a plurality of slidable gears on the idler shaft, one of which is adapted to mesh with either pinion on the transmission sleeve and with one of the countershaft gear wheels and the other of which is adapted to mesh with a second gear wheel on the countershaft, means for sliding the gear wheels on the idler shaft to and from engaging positions, and means for connecting the power transmission sleeve to rotate with the driving shaft.

5. In a traction engine, a driving shaft, a power transmission sleeve on said shaft having thereon two pinions, a clutch for connecting the sleeve to rotate with the driving shaft, a countershaft, a plurality of gear wheels connected thereto, an intermediate idler shaft, a slidable sleeve on the idler shaft, a plurality of gears mounted on the sleeve, a reversing pinion suspended from the sleeve, one of the gears on such slidable sleeve being adapted to mesh with either pinion on the transmission sleeve and with one of the countershaft gear wheels, and one of the other gears on the slidable sleeve and the reversing pinion being adapted to engage a second gear on the countershaft,

and means for sliding the sleeve on the idler shaft to move the gears thereon to and from engaging positions.

6. In a traction engine, a driving shaft, a power transmission sleeve on said shaft having thereon a narrow and a wide pinion, a clutch for connecting the sleeve to rotate with the driving shaft, a countershaft, a plurality of gears thereon, an intermediate idler shaft, an idler sleeve on said shaft having thereon change speed and reversing gears, one of said gears being adapted to mesh with either of said transmission pinions and to mesh with said wide pinion in two positions, in one of which a gear on the idler sleeve will mesh with a gear on the countershaft while in the other position of said gear in mesh with said wide pinion the reversing gear will mesh with the same gear on the countershaft, and means for sliding the sleeve on the idler shaft to move the gears thereon to and from engaging positions.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses this 8th day of April, 1910. v

EDWIN M. WHEELOCK. Witnesses:

H. A. BOWMAN, P. H. GUNCKEL.

Copies of this patent may be obtained for in cents each, by addressing the Commissioner of Patents,

Washington, D. G."