US845131A

US845131A - Rail bending and straightening machine.

Info

Publication number: US845131A
Application number: US34993606A
Authority: US
Inventors: Charles H Sherburne
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-12-29
Filing date: 1906-12-29
Publication date: 1907-02-26
Anticipated expiration: 1924-02-26

Description

PATENTED FEB. 26, 1907.

No. 845,131. I G. H. SHERBURNEL- RAIL BENDING AND STRAIGHTENING MACHINE.

APPLICATION FILED DB(I.29,1906.

Inverztor: r %t%% I W witnesses: 2J6? NTTED STATES ATENT FFTQE.

CHARLES H. SHEBBUBNE, OF BOSTON, MASSACHUSETTS.

RAH. SENDING AND STRAIGHTENING MACHINE.

CON/0677b. I, CHARLns H. SHER- To all whom it may Be it known that BURNE, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Rail Bending and Straightening Machines, of which the following is a specification.

This invention relates to a device for bending and straightening rails, girders, and the like, the object of the invention being to provide a portable machine which can be readily attached to a rail or girder and operated by hand to bend or straighten said rail or girder.

The invention consists in the combination and arrangement of parts set forth in the following specification, and particularly pointed out in the claims thereof.

Referring to the drawings, Figure 1 is a plan view of my improved rail-bending and straightening machine, showing the same attached to a rail, the handle being broken away to save space in the drawings. Fig. 2 is a sectional elevation taken on line 2 2 of Fig. 1. Fig. 3 is an enlarged sectional elevation through the nut-sleeve, taken on line 3 3 of Fig. 1. Fig. 4 is a sectional elevation taken on line 4 4 of Fig. 3. Fig. 5 is a sectional elevation taken on line 5 5 of Fig. 1 looking toward the right in said figure. Fig. 6 is an enlarged sectional detail taken on line 6 6 of Fig. 4.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, chine, consisting of together by cross braces 10 11, the side pieces 9 9 terminating in hooks 12 13, adapted to engage the rail 14 upon one side thereof.

The slide 15 consists of two rods 16 17, preferably rectangular in cross-section, joined together by a nut-sleeve 18, having right and left hand threads formed in the interior thereof to engage the right and left hand screw-

threads

19 and 20 formed upon the

rods

17 and 16, respectively. The

rods

16 and 17, forming a part of theslide 15, are adapted to slide in the braces 10 and 11, respectively, of the frame 8. The rod 17 is connected by eccentric-rods 21 21 to eccentrics 22, formed upon opposite sides, respectively, of a rocker-arm 23, pivoted to rock upon a shaft 24, which extends through said rocker-arm and is fastened to the opposite sides 9 9 of the frame 8. A handle 25 is fas- Specification of Letters Patent.

29,1906. Serial No, 349,936.

8 is the frame of the ma- 1 side pieces 9 9, fastened Patented Feb. 26, 1907.

tened to and extends upwardly from the rocker-arm 23.

The sleeve-nut 18 has a ratchet-gear 26 fast thereto, said ratchet-gear being in an annular space 27 between two rings 28 28, connected together by a cross bar 29. The rings 28 28 and cross-bar 29 constitute apawlcarrier 30. A pawl 31 is pivoted at 32 to said pawl-carrier. Said pawl is a doubleended or reversible pawl, the end 33 adapted to engage the ratchet-gear 26 at one side of the pivot 32 and the end 34 being adapted to engage said gear upon the opposite side of said pivot. The pawl 31 is held yieldingly in engagement with the teeth of the ratchet gear 26 by a pin 35, Fig. 6. The pin 35 is adapted to slide in a recess 36, formed in a screw 37, having screw-threaded engagement with one side of the crossbar 29. The end of the pin which engages the pawl is pointed to enter either one of the recesses 38 39.

When the pawl is in the position illustrated in Fig. 4, with the end 33 in engagement with the ratchetteeth, the pin 35 enters the recess 38. When the pawl is tipped toward the right, Fig. 4, until the end 34 thereof engages the teeth of the ratchet, then the pin I 35 enters the recess 39. Said pin can, however, yield slightly enough to allow the end of the pawl which is engagement with the teeth to snap over said teeth without the pin becoming disengaged from the recess 111 which it is at that time located.

The pawl-carrier 30 has a pivot 40 fast thereto and extending transversely of the sleeve-nut 18, and upon this pivot is mountl ed a handle 41, by means of which the pawl- I carrier can be rocked upon the nut and the pawl moved to engagement with different teeth of the ratchet 26, as hereinafter described. TVhen not in use, the handle 41 may be tipped upon the pivot 40 over longitudinally of the nut 18 and held in position thereagainst by suitable means, such as a strap 42 and buckle 43, said strap being fastened to the sleeve-nut 18. It is preferl able in using the device hereinbefore specif ically described to place a metal block 44 between the rail 14 and the rod 16.

The general operation of the device hereinbefore specifically described is as follows: The hooks 12 13 are placed against the rail, as illustrated in Fig. 2, and the frame dropped l to a substantially horizontal position. The

sleeve-nut 18 is then rotated to increase or diminish the length of the slide 15 as a whole, and thus bring the outer end of the rod 16 nearer to or farther away from the rail. The nut 18 is rotated by means of the handle 41, which is rocked b together with the pawl-carrier 30, to which it is attached, thus moving the pawl 31 over the periphery of the ratchet 26. The pawl carrier rocks upon the sleeve 18 and is prevented from moving longitudinally thereof by the ratchet-gear 26, which is driven onto the periphery of said nut or fastened securely thereto in any desirable manner. If it is desired to rotate the nut toward the left as viewed in Fig. 4, the pawl 31 is tipped to the position shown in said figure. If it is desired to rotate said nut in the opposite direction, the pawl is tipped until the end 34 engages the teeth of the ratchet. A block of iron 44 is placed between the end of the rod 16 and the rail 14, and after the hooks 12 13 and the block 44 have been firmly brought to bearagainst the rail when the handle 25 has been raised to a position of about forty-five degrees, as illustrated in Fig. 2, the rail is then bent by depressing said handle, thus rotating the eccentrics 22 and forcing the eccentricrods 21 21 toward the left, Figs. 1. and 2, thus moving the slide 15 toward the left, the

rods

16 and 17 sliding in the cross-braces 10 and 11, respectively, and forcing the block 44 against the rail 14 between the hooks or jaws 12 13, thus bending the rail to any curve desired, or if the same is bent and it is desired to straighten it said rail may be thus bent until it becomes straight.

Having thus described my invention, what I claim, and desire by Letters Patent to secure, is

1. A rail-bender comprising in its construction a frame, two hooks fast to said frame adapted to engage one side of said rail, a slide adapted to be moved toward and away from the opposite side of said rail, and mechanism to impart a reciprocatory motion to said slide, said slide embodying in its construction a nut, a ratchet fast to said nut, a pawl-carrier rotatable upon said nut and a pawl pivoted to said carrier and adapted to engage said ratchet whereby the length of said slide may be varied.

2. A rail-bender comprising in its construe tion a frame, two hooks fast to said frame adapted to engage one side of said rail, a slide adapted to be moved toward and away from the opposite side of said rail, and anism to impart a reciprocatory motion to said slide, said slide embodying in its construction a nut, a ratchet fast to said nut, a pawl-carrier rotatable upon said nut, a pawl pivoted to said carrier and adapted to engage said ratchet, whereby the length of said slide may be varied, and a handle pivoted to said pawl-carrier.

ackwardly and forwardly,

mech- I 3. Arail-bender comprising in its construction a frame, two hooks fast to said frame adapted to engage one side of said rail, a f slide adapted to be moved toward and away T from the opposite side of said rail, and mechanism to impart a reciprocatory motion to j said slide, said slide embodying in its construction a nut, a ratchet fast to said nut, a j pawl-carrier rotatable upon said nut, a pawl pivoted to said carrier and adapted to engage said ratchet, whereby the length of said slide may be varied, a pivot fast to said pawlcarrier extending transversely of said nut, and a handle mounted upon said pivot. r 4. Arail-bender comprising inits construction a frame, two hooks fast to said frame adapted to engage one side of said rail, a slide adapted to be moved toward and away from the opposite side of said rail, and mech- I anism to impart a reciprocatory motion to said slide, said slide embodying inits construction a nut, a ratchet fast to said nut, a pawl-carrier rotatable upon said nut, a pawl pivoted to said carrier and adapted to engage said ratchet, whereby the length of said slide may be varied, a pivot fast to said pawlcarrier extending transversely of said nut and a handle mounted upon said pivot, whereby said carrier may be rocked upon said nut and'said handle may be tipped over longitudinally of said nut, and means to fas ten said handle to said nut.

5. A railbender comprising in its construction a frame, two hooks fast to said frame adapted to engage one side of said rail, a slide adapted to be moved toward and away 5 from the opposite side of said rail, and mechanism to impart a reciprocatory motion to said-slide, said slide embodying in its construction a nut, a pawl-carrier rotatable upon said nut and consisting of two rings separated one from the other by an annular space, said rings connected together by a j cross-bar, a ratchet fast to said nut and loy cated in said annular space, and a pawl pivi oted to said cross-bar and adapted to engage said ratchet, whereby the length of said slide may be varied.

6. A rail-bender comprising in its construction a frame, two hooks fast to said frame and adapted to engage one side of said rail, a slide adapted to be moved toward and away from the opposite side of said rail, and mechanism to impart a reciprocatory motion to said slide, said slide embodying in its construction a nut, a ratchet fast to said nut, a

pawl-carrier rotatable upon said nut, and a reversible pawl pivoted to said carrier and adapted to engage said ratchet upon opposite sides of the pivot of said pawl, whereby the length of said slide may be increased or diminished.

. 7. A rail-bender comprising in its construction a frame, two hooks fast to said frame and adapted to engage one side of said rail, a

yieldingly in engagement with said ratchet upon opposite sides, respectively, of the pivot of said pawl, whereby the length of said slide may be increased or diminished.

slide adapted to be moved toward and away from the opposite side of said rail, and mechanism to impart a reciprocatory motion to said slide, said slide embodying in its construction a nut, a ratchet fast to said nut, a In testimony whereof I have hereunto set pawl-carrier rotatable upon said nut, a remy hand in presence of two subscribing witversible pawl pivoted to said carrier and nesses.

adapted to engage said ratchet upon oppo- CHARLES H. SHERBURNE. site sides of the pivot of said pawl, whereby Witnesses:

the length of said slide may be increased or CHARLES S. GOODING,

diminished, and means to hold said pawl 1 ANNIE J. DAILEY.