US1175101A

US1175101A - Reversing mechanism.

Info

Publication number: US1175101A
Application number: US6596015A
Authority: US
Inventors: Thomas Odenwelder Werner
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-12-09
Filing date: 1915-12-09
Publication date: 1916-03-14
Anticipated expiration: 1933-03-14

Description

T. 0. WERNER. REVERSING MECHANISM.

APPLICATION FILED DEC. 9, 1915.

1 1 75, 1 0 l Patented Mar. 14', 1916.

2 SHEETS-SHEET I:

Witnesses Inventor;

T- O. WERNER.

REVERSING MECHANISM.

APPLICATION FILED DEC. 9. 1915.

, 1,175,101. I Patentd Mar. 14, .1916. I

' 2 SHEETS-SHEET 2.

Witnesses Inventor,

\ Attorneys 1 THOMAS ODENWELDER WERNER, OF'BANGOR, PENNSYLVANIA.

nnvnssine Mechanism.

To aZZwhom' it may concern Be it known that I, THOMAS O. WERNER,- a citizen of the United States, residingat Bangor, in the county of Northampton and State of Pennsylvania, have invented a new and useful Reversing-Mechanism, of which the following is a specification.

This 'inventi ni-elateS t0 reversing mecha nisms' particularly designed for "use in connection with hoisting engines and "the like, whereby the motion of the drum can'be readily reversed.

The "invention is more especially designed as'an improvement upon the structure covered by Patent Nai /8,615, issued jointly to 'J H. Wernerand S; Flory, on December '27, 1904..

Mechanismsof this character as heretofore constructed have been objectionable for the reason that it hasbeen impossible to use one standardmechanism in connection with machines 'offdifierent makes and types. On the contrary reversing mechanisms have necessarily been altered more or less extensively in order torender them capable of use in connection with different machines. This has obviously added materially to the cost of making a reversing mechanism and applying it to the machine.

One of the objects'of the present inven tion isto provide reversing mechanismthe gears of which are so located relative to each other that, merely by the removal of two gears and the substitution of two other gears of different diameters, the speed of the driven parts can be varied. Consequently, the mechanism can be adapted to machines of different types without necessitating a1- terations either in the machine constituting the present invention or to the apparatus to which it is applied.

It might be stated further 'that inv mechanisms of this type as heretofore constructed'it has been practically impossible to change the speed of the driven parts be-' cause the power 'transm'ittinggears have been arranged in a train with a number of the gears in the sameplane and, consequently, the gears could not be rearranged in order to get the desired changes in'speed. By :meansof the mechanism constituting the present invention certain of the-gears can V be interchanged or other gears substituted,

th-iisto effect a'change'of speed readily "and Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed December a-isis. Serial No. 65,960.

without changing the structure of the mechanism. v p

A further object of the invention is to provide a novel arrangement of gears together with clutch mechanisms of novel form whereby a positive operation of the mechanism in the desired direction is secured. r

WVith the "foregoing and other objects in View which will appear as the description proceeds-the invention resides in the combination and arrangement of parts and in the-details of constructionhereinafter described and claimed, it being understood that changes in the precise embodiment'of the invention herein disclosed can be made Within the'soope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings, the preferred form of the invention has been shown. r In said drawings :Figure 1 is a plan view of the mechanism constituting the present invention. Fig. 2 is an elevation of one side of the apparatus, parts being broken away. Fig. 3 is an elevation of the opposite side of the reversing mechanism. Fig.4 is a section on line AB Fig. 3.

Referring to the'figures by characters of reference 1 designates a portion of the frame of the machine, the same having a drive shaft 2 which may be actuated in any manner desired, this drive shaft having a gear 3"secured to it and constantly meshing with a gear' i which is detachably secured to a shaft 5 journaled within the frame 1. To thisshaft 5 is secured a gear 6. It is to be understood that the gear 3' as well as gear 4: can be detached and other gears of different sizes substituted therefor so that the speed ratioof the two shafts 2 and 5 can be varied. Obviously this change in gears can be ef fected without disturbing any of the other parts of the mechanism. Secured to the frame 1 is a supplemental frame 7 and securedin this frame as well as the frame 1, are superposed shafts 8 and 9 each ofwhich is held against rotation in any manner desired;- A-driven shaft 10 is journaled in the-

frames

1 and 7 and has a large gear 11 keyed or otherwise secured thereto and com stantly meshing with two similar gears 12 and *15'mounted for rotation on the shafts 8 and-9 respectively. Gear 12 is provided at one end with a conical clutch member 1 1 surrounding acoiled spring mounted on the shaft 8, this spring 15 bearing against the inner wall of a recess 16 formed in one side of a gear .17 which'is loosely mounted on the shaft 8. The wall of recess 16 is adapted to be frictionally engaged by the clutch member 14 and, when the parts are 'in' frictional engagement, the spring 15 is under compression. Shaft 8 is provided, in its outer end, with a longitudinal bore 18 opening, atits inner end, in a diametrical slot 19 formed in the shaft 8. Extending through this slot is a cross arm 20 from the center of which projects a pin 21 slidably mounted in the bore 18. A cap 22 houses the outer end of shaft 8 and is engaged by 1 an adjusting screw 23 having aquick thread, this screw constantly bearing agalnst the end of the pin 21. An arm 24 is extended radially fromthe screw and is preferably clamped thereon, as shown in Fig. 3, so that movement ofvthe arm in one direction will Cause the screw to move inwardly and thrust against the pin 21 while movement of the arm in the other direction will result in the partial unscrewing of the part 23 and the consequent'movement of the gear 17 and cross arm 20 under the action of spring 15.

The gear 13 has a conical clutch member- 25 similar to the clutch member 1 1 and which vextends into a recess 26 formed in a gear 27 which is loosely mounted on shaft 9 and constantly meshes with the. gear 17.

A. spring 28 is housed within the clutch member 25 and constantly presses against the central portion of. gear 27 so as to hold said gear normally disengaged from the clutch member 25. A longitudinal bore 29 is; formed in the outer end portion of shaft. 9 and a pin 30 is slidably mounted in this bore and is extended from a cross arm 31 slidably mounted in a slot 32which is extended through the shaft 9. A screw 33 having a quick thread is mounted within a cap 34 housing the outer end of shaft 9 and secured to this screw is a radial arm35 s milar to the arm 2 1-. The

screws

33 and 23 have their threads oppositely pitched, one screw'having a right hand thread and the other screw having a left hand thread. The two

arms

24 and 35 are connected by a link 36 so that the two arms will move together in the same direction. However this move- Inent of the arms in one direction will result in the outward movement of-one of the screws and the inward movement of the other screw. lVhen either 'of the screws is moved inwardly, itwill force the cross arm operates as the means for rotating to the adjacent gear 12 or 13. Thus it will be ,seenithat movement of the

arms

24 and 35 will result in the simultaneous coupling of one

gear

17 or 27 and the uncoupling of the other gear. w

It is to be understoodthat the

arms

24 and 35 can be actuated in any manner de-' sired. For example, a rock shaft 37 may be extended across the machine, this rock shaft having acrank arm 38 connected by a link 39 to the arm 35. The rock shaft, inturn, can be actuated by a rodeo connected to a crank arm 41 upon the rock shaft 37, this rod 40 being operated by'any desired means.

It will be apparent thatwhen the shaft 2 is rotating, for example, in the direction indicated by. the arrowin Figs. 1, 2vand 3, motion will I be transmitted therefrom through

gears

3 and 41 to shaft 5 and from gear 6 on said shaft to gear 17 As gear 17 is constantly in; mesh with gear 27, the two gears will berotated simultaneously inopposite directions respectively. By utilizing a construction such as illustrated, it willbe seen that when the arms 35 and 2 1' are drawn downwardly, the screw23 will feed inwardly against the pin 21 and thrust the cross'arm20 againstthe middle portion of gear 17, thus. binding said gearupon the clutch member .14: and causmg gear .12 to rotate with gear 17p At the same time,

screw 23 will be fed outwardly so that spring 28, which is undercompressiom'will movlng the arms 35 and 2st upwardly, the foregoing-operation will be'reversed, gear 12 being uncoupled from its gear 17, while gear 13 becomes coupled to gear 27 and thus 11. Consequently the rotation of and shaft 10" will be-reversed. As minute movement of each gear 17 and-27 is gear 11 the gear 7 only a V necessaryin order to shift it into and out of engagement'with its clutch member, it will be apparent thatthere is no'danger of these gears moving out of mesh with each other. By. using clutch shifting mechanism such as.

described, a very quick application-of the I clutch or release of the clutch is effected and the mechanism is at all times under the positive control of the operator.

' What is claimed is IThe combination with stationary-shafts, afdriven gear, a pair of gears mounted for rotation on said shafts and constantly meshing with the driven gear, and a'clutch member integral with'both gears of said pair, of a second pair of gears mounted for rotation on the shafts and having clutch faces forengagement by said clutch members, yieldable means upon the shafts for holding the gears of the tWo pairs normally uncoupled from each other, means slidably carried by each of said shafts for, shifting one gear on each shaft to couple it to the other gear thereon, a threaded element carried by each shaft for actuating said sliding shiftingmeans, and means for simultaneously actuating said threaded elements, the threads on 10 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O.