US1431710A

US1431710A - Tie puller

Info

Publication number: US1431710A
Application number: US421464A
Authority: US
Inventors: Uno Masa
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-11-03
Filing date: 1920-11-03
Publication date: 1922-10-10
Anticipated expiration: 1939-10-10

Description

M. UNO.

m FULLER. I APPLICATIQN FILED N0v.3,1920.

Patented Oct. W, 1922-...

AMLJH 2 SHEETS-SHEET 1.

IN VEN TOR.

NASA u/vo.

ATTORNEY M. UNO.

TlE FULLER. APPLICATION FILED NOV- 3. i920.

1A3]. 577m, Patented Oct. m, 1922..

2 SHEETS-SHEET 2.

MAS/1 U/VO. I J] BY M44: ATTORNEY INETORQ MASA "one, orsalvraa vcrsoo, oatrronura.

ran runtna.

. pplication filed November 3, 1920. Serial N0, 421, 4; M

To all whom it may concern:

Be it known that Mesa Uno, a subject of the Emperor of Japan, residing-at city and county of SanFrancisco and State of Cali fornia, has invented new and useful Improvements inTie Pullers, of which the following is a specification. j r

This invention relates to a tie puller, more particularly to a device for pulling rallroad ties from beneath rails during construction or repair of arailroad.

The objectof the invention is to provide such device for pulling ties which is slmple in construction and may be easily manlpulated. p

It is also an object of the inventlon that the device he so constructed that it may remain inoperative position during the passage of trains andthus exped'te the work of pulling ties as much as possible.

Other objects will hereinafter appear.

Tn carrying out the invention, a frame is provided in which there is j ournaled a power shaft carrying a pair of winding drums. The shaft preferably rotated through manually operative means, and to each drum there is attached one end of a cable. The

frame is positioned" on one side of a railroad t ack, andthe cables connected at their free end about the opposite end of the railroad tie to be drawn. By rotation of the drum through the means of the p be Withdrawn. Therotation of the shaft is accomplished bymanually actuated means, andadapted to automatically decrease the turning movement of the shaft and increase its power with the increase in load upon the cablesbeing wound aboutthe drum. Also as the load decreases upon the cables, a reverse action will take place.

The invention is illustrated by way of example in the accompanying drawings, in.

which'- V Figure 1 is atop plan ViGWSlIOWHIg the application of my invention, Fig. 2 .is an. enlarged plan new of the frame and the mechanismcarried thereby,a friction disk drive for the power shaft tov obtain variable speeds thereof being shown;

Fig. 3' is a plan view similar to Fig. 2, but showing gear means for replacing the friction disks shown in Figures 1 and 2.

Fig. 4 is a transverse vertical section view on line 1-4 of Fig. I

shaft, the tie may 1 a tie 11, and are connected across the end of the tie by means of a chain of the cables,

F'g. 5 is a transverse section on the line of the lock plate shown in Fig. 3.

Fig. .6 is a transverse section on the line 6-6 of the lock plate shown in Fig. 3.

Referring to the drawings in detail, and part cularly to Figures 1 and 2, 10 indicates a pair of railswhich are laid upon ties 11 to form a road bed. lln carrying out the invention the frame 11 is provided, being substantlally square in cross section with the exceptlon of an extended portion 12 on one side thereof. The frame is substantially of the depth as shown in Fig. 4e, and on each side there is secured adjacent to one end of the frame, a horizontally extended arm 13, which are adapted to seat upon the ties 11 as shown in Fig. 1. At the other end of the frame there is provided a pair of legs 14: which are adjustably secured to the frame asshown in Fig. 4. This is for the purpose that the frame may be held in any desired plane, preferably horizontally as shown.

Near the forward end of the frame there is journalled a shaft 15, extending transversely thereof. The shaft is journalled through the means of the outwardly extending bearing 16, onebeing formed on each side of the frame. Near the other end of the frame, a pair of outwardly extending bearings 17 are formed to journal the shaft 18. Winding drums 19 are carried by the shaft 1 8, and one being positioned ad acent each adapted to guide the cables for winding on 19. Eachsheave 22 is the winding drums rigidly supported and journalledby rigid arms 23, extending from the sides of frame 11 as shown. From the sheave 22, the cables each extend about a sheave 25, and then about a sheave 26. From this last named point the cables extend the length of at their ends and hook carried on each end as indicated at 27, Fig. 1.

The

sheaves

25 and 26 are preferably disposed in a horizontal plane similar to sheaves 22. The sheaves 26 are mounted similar to the sheaves 22, that is, by means of arms 27 extending from the frame 11. Sheaves 25 are supported by the shaft 15,

and journalled by means of pins or the like, so that said sheaves will move with the shaft. An idler 28 for each sheave may also be employed for holding the cables on the sheaves, if so desired.

The shaft 15 further carries a compression coil spring 29 at its one end, said spring being secured to the shaft at its one end by means of a collar 30. The tendency of the spring isto retain the shaft in the position shown at Figures 1, 2 and 3, the shaft having on its opposite end a collar 31, to limit the longitudinal movement thereof under the influence of the spring.

On the shaft- 18 there is mounted a disk 32, having a relatively wide periphery, as shown. The disk is secured to rotate with the shaft,

- but adapted to move longitudinally thereof to a predetermined extent. The mounting means for permitting this movement of the disk with respect to the shaft consists of a key and slot arrangement as shown. The disk 32 is formed with an extended hub 33, on one side thereof, said hub having an annular slot 34- adapted to accommodate the fork end 35 of the control finger 36. The control finger 36 is otherwise connected by its other end to the shaft '15, and adapted to move with said shaft. 7

The shaft 18, as before stated, is preferably manually rotated. In accomplishing this, an outwardly extending bearing 37 is formed on the adjacent end of the frame 11, and in this hearin there is journalled a stub shaft 38. 1 1-1 disk 39 is formed on the inner end of the stub shaft, and its side surface disposedin juxtaposition to the peripheral surface of the disk 32. A. spring 410 is interposed between disk 39 and frame 11 to give the required friction between the driving and driven disks, namely 39 and 32, respectively. On the outer end of the stub shaft 38, there is mounted a bar and ratchet arrangement connected at 11, whereby the stub shaft may be manually rotated in one direction. and held against rotation in the opposite direction.

In the operation of the device as now described and shown, the frame ispositioned with the arms 13 on pair of ties 11, and the legs 14 are adjusted so that the frame is disposed in horizontal plane. The cables 21 are then unwound from the drums 19, and their outer ends are conneeted'across the further end of the tie 11,.to be withdrawn as shown in Fig. 1. Now by applying manual power to rotate the disk 39, the disk 32 is frictionally engaged and likewise rotated. Rotation of the disk 32 will begin the winding of the cables 21 upon their winding drums. When the slack has been taken up in the cables and the tie exerts a pressure against further movement, the shaft 15 will move longitudinally against the tension of the spring 29, carrying therewith the sheaves 25, which will tend to lengthen the cables 21, the same being taken up by the winding drums 19. In this longitudinal movement of the shaft 15, the control linger 36 likewise moves and carries with it the disk 3;. This movement is very gradual and takes place while power is continuously being applied for rotating the disks 39 and 32; as is obvious, the disk moves longitudinally upon the shaft 1.8 toward the center of the disk 39.

The driving force of the disk 39 will be increased, and the turning movement of the disk 32 and likewise the shaft 18 will be correspondingly decreased. In other words, as the load increases, the driving power shaft 18 will correspomlingly increase to take up the excessive load. 111 this manner, the tie 11 will be easily withdrawn passing out beneath the frame 11. The driving mechanism is adapted to apply a great force upon the cables for withdrawing the tie.

Now referring to Figures 3 and 4:, it will be seen that the disk transmission arrangement shown in Figure 2 has been substituted by gears. In this modification the shaft- 18 is utilized and the additional shaft a2 is also provided. This shaft is journalled in bearings 13 and 1 1, bearing 43 being formed on an arm 15, extending from the frame 11, and bearing 11 being formed in the frame as shown. The shaft 18 carries three different gears, namely 41G, 17 and 18, and likewise the shaft 12 carries the same number of ears, but are arranged in reverse relation to arrangement of the gears on shaft 18. The shaft 42 is also provided on its outer end with a bar and ratchet arrangement for rotating said shaft, similar to that shown in Figures 1 and 2. The three gears mounted on the shaft 18 have their hubs formed integrally, and between the first two gears there is formed a central annular groove indicated at 49. This groove is adapted to accommodate the controlling finger 36. The gears are adapted to freely slide upon the shaft 18, and as is obvious when the small gear 18 on the shaft 18 is brought into mesh with the largest gear on the shaft 42, the highest turning movement of the shaft is obtained. This turning movement will be decreased and the power of the shaft increased if the gear 17 on said shaft is shifted into mesh with the next gear in size on the shaft 12. Likewise the same result would be obtained by shifting the gear 4:6 on the shaft 18 into mesh with the smallest gear carried by the shaft 12. The shifting of these gears takes place while the load increases upon the cables 21, that is. at the time of withdrawing the tie from beneath the rails. The controlling linger 36 shifts the gears similarly to the shifting of the disk 32, as previously described.

In order to insure that the gears will freely mesh when there is a shifting thereof,

Iprovide a lock plate 50. This Wardly. The plate has a curved portion 52 formed on its other end which is provided. on itsunder side with the grooves 521, said grooves being three in number and each adapted to engage with either of the gears carried by the shaft 18 in the manner shown in Fig. t. Also secured 011 the shaft 15 is an arm 53 which has anup-turned fork portion 54: which journals and carries a roller 55. This roller operates in a groove 56 formed in the under surface of the lock plate 50. The groove is provided with rises as indicated at 57, and the arm 36 is rigidly secured to the shaft 15. As is obvious,fwhen the shaft 15 moves longitudinally against the tension of the spring 29, this roller will engage the different rises in the groove and lift the lock plate so that it is disengaged from the gear which it may be holding. i he control finger 36 in this instance is flexible so that when the shaft 15 moves the finger will yield or bend and exert pressure to move the gears on shaft 18. Immediately when the lock plate is raised the gear will be shifted, and establish a new drive for the shaft 18. .As before stated, three different drives may be had in this manner for the shaft 18, and the turning movement of said shaft decreased and its power increased with the increaseof load upon the cables 21.

While I have shown thepreferred form of my invention it will be understood that rious changes in the combination, construction and arrangement of parts may be made by those skilled in the art, without depart-- ing from the spirit of the invention claimed.

Having thus described my invention what 1 claim and desire to secure by Letters Patent isy 1. A railroad tie puller comprising in combination, a frame adapted to be positioned at one side of a railroad tr clc winding means carried by said frai'ne, cables extending from said Winding means and adapted to be secured to a tie, variable speed mechanism for operating the winding means ashiftable member for controlling the variable speed mechanism, and connections be tween the cables and shiftable memberoperative under increased tension of the cables to actuate the shifting means whereby to reduce the speed of the operating mechanism. s a a 2. A railroad tie puller, comprisingin combination a frame adapted to be posh tioned at one side of a railroad tract; a

shaft journalledtherein carrying a pair of Winding drums, a cable securedto each drum and said cables adapted to have their free ends secured about the opposite end of. the

multaneously and having their tie, means for manually rotating slaid wind ingdrums and yieldablc means for taking up siaclr in the cables during a light load thereon. i

3. ll. railroad tie puller comprising in combination a frame, a shaft journalled therein carrying a pair of Winding drums, a cable secured to each drum, means on the free ends of said cables bywhich they may be secured to a railroad tie, means for manually rotating said winding drums, means for taking up slack in the cables before pulling thereon by rotation of the drums, said means being yicldable. 1

4. ll. railroad tie puller comprising in combination a frame adapted to be positioned at one side of a railroadtrack, a shaft journalled therein carrying a pair of winding drums, a cable secured to each. drum and having their free end secured by the opposite end of a railroad tie, means for manually rotating said. winding drums, including a variable speed mechanism means for taking up slaclr in. the cables before pulling thereon is applied. said means being yieldable, and means connected between said variable speed mechanism and yieldable means wherebthe turning movement of the shaft will be decreased and its power increased siwith the increase of loads upon the cables.

5. A railroad tie puller comprising in com bination a frame adapted to be positioned on one side of a railroad track, a shaft journalled therein carrying a pair of Winding drums, a cable extending from each drum ends connected by the opposite end of a tie, a pair of aligned guide sheaves between each drum and the other end of the cable. extending therefrom, a guide rod extending between said pairs of sheaves. a pair of sheaves carried by said guide rod one foreach cable, and spring means for holding these last named sheaves out of alignniient with a pair of aligned guide sheaves for each cable, said spring controlling sheaves being adapted to move into alignment when. a load. is taken up by the cables means for rotating said drum winding shaft, including a variable speed mechanism, and connected means between the spring control sheaves and variable speed mechanism whereby the speed of the shaft will be decreased with the increased load upon the cables.

6. A. railroad tie puller comprising in combination a frame adapted to be positioned at one side of the railroad track, a shaft joint-nailed therein carrying a pair of winding drums. a cable extending from each drum and having their free ends connected to the winding drums, a

pairs and journalled to move longitudinally in the sides of a frame, apair of sheaves carried by said guide rod one for each cable, a compression spring on said guide rod adapted to normally hold the last named sheaves out of alignment with the aligned pairs of sheaves, and belng further adapted to be brought into alignment with the said pairsof sheaves against the tension of the spring when a load is applied to the cables, 10 means for rotating said druin winding shaft, including the variable speed mechanism, and connecting means between the guide rod and the variable speed control mechanism, whereby the speed of the drum winding shaft will 1 be decreased with increase oil load and its power correspondingly increased.

MASA UNO.