US1493135A - Leaf-spring-bending device - Google Patents

Description

May 6 1924. 1,493,135

A. WALRADT .LEAF SPRING BENDING DEVICE Filed May 5, 1922 Ni ENTER ATTORNEYS" intoany curvature desire Y Patented May 6, 1924.

UNITED 42w we sAm CAIJPWELL? meso- T all here i may c ncern" Be it k i "that I, a ci zen ofthe Uniteds tatesganil'a' Caldwell, in the toasty sf Canyo of Idaho, liave invented' af ewaiid Improvement in Leaf 'S p ng' -:Beiidin v vices of wl h' f o lc wiiig s f le.

y vent e ela es t imprpr menbs n l arspring- Bending agyie and 6 A further object of my invention provide a dev e f th o aras r fibd which. ha a n vel lverfl ih h s a tld o ol th flsp i g hfn' 'i ai i s t desired'position." i

A further object of my invention is to provide a device of the character described which is simple in construction, 'co a minimum number an .w r le a efli ie i is e P 1.1

Other objects and adyantages appear in the following specification, and'the novel features of the inyention will be particularly pointed out in the appended claim.

My invention is illustrated in the accompanyingdrawing, forming part of this application, in which The figure is a perspective view of the. device, portions thereof being broken away.

In carrying out my invention, I provide a rectangular box-shaped frame I which is preferably made of a plurality of angle iron strips. The angle iron strips are bolted or riveted together in any manner so as to provide a strong and rigid device. A table top 2 is carried by the frame 1 and supports the work 3. i

The table top 2 carries a spring holding means which comprises a rod 4,1this rod being rigidly supported by brackets :5 which in turn are secured to the frame 1. Spring holding hooks 6 are adjustably secured in brackets 7 and are locked in adjusted; position by means of hand screws 8. The brackets 7 are slidably disposed on the rad i and are adapted to be moved to any desired distance from the center bracket 5. Thehookshaped members 6 have downwardly turned ends 9 which rest on the top of the table 2,

ie-wi tr l y std portion1f2 which adja o a' slotlf3 in the table #119179 m ans' d mi fig 55 10 w1'll be hereinaftrdescribed. ugh the medi m 9 an up- .spr ii i' 'r e gii g brake epfl'gd tldf n ements lthlafit'er w en the bar Z11 bre k 4% se ured an "P ATP ,1 1.65 e biack fl o the val- 5 her b y the barrelisza d r ctil lulw t oved. respect tgithe up'rih 15,- .The upright 15 v ei fthe be 03 ctuated,

withegeids tor the es I. v$1 9 .by

oved by means of a rock.- shaft 17. The shaft 17 carries a roller bracket 18, which in turn supports a disk 19. A ring 20 is carried by the disk 19 and is spaced therefrom by ball bearings 21. The outer periphery of the ring 20 is grooved and is received in a U-shaped dejournalled in bearings 24 which are carried by 'anfle irons 25, the latter being secured to the frame 1. The lever, 23 is disposed ed by he ba .10:

hepgfi ra pqi ione t e pring adjacent to an arcuate-shaped member 26 to which it may be securedby means now to be described. A disk 27 is .rotatably carried by the lever 23 and is connected to locking members 28 by means of links 29. 7 The members 28 have slots 30 therein which re- *in adjusted position. The members 28 fulceive the arcuate-shaped member26, The

members 28 have extensions 31 which are loosely received in eyelets '32, the eyelets being rigidly secured to the lever 23. The

upper ends or the extensions 31 are con-' nected to the lever 23 by means of springs 33. The springs 33. tend to swing the up per ends of the members 28 toward each other and to swing the lower ends of the member 28 away from. eachother so as to cause the sides of the slots to grip the arcuate member 26 and to hold the lever 23 crum about the eyelets 32 as a pivot. -A releasing handle. 34: is pivotally carried by the lever .23 and is connected by means of a rod-35 tothe disk 27. vlVhen the handle 34:

is swung'towards the lever 23, it rotates the disk 27 so as to swing the lowerv endsor the members 28 towards each otherwhich releases the member 28 fromthe arcuate member 26 and permits the lever 23-t0 be swung.

From the foregoing description of the various'parts of the device, the operation thereof ,maybe readily understood. In

bending a spring 3 into the desired shape, the.

hooks 6 are first moved on the rod 45 so as to dispose "the hooks at the end of the spring. The spring 3 is heated until it gets red hot and is, then placed upon thetable so that the ends thereof are retained by the downwardly bent portions 9 of the hooks 6. The

' lever 23 is then released from the member 26 by movingthe handle 34 and is swung so as to move the bracket 14 into engagement with the spring 3. The lever 23, can beswung to any angle desire'dand be instantly held in adjusted positionv by means of the members 28. It is obvious that as the lever 23 is swung, it will move the I spring into the desired shaped The brackets.

6v are quickly" adjustable so as to engage with the ends of a, springer any length, thereby providing a device which is adapted to bend a spring of any desired length. The mechanism actuated by the lever 23 is adapted to. engage with the middle of the spring so. The.

as fto bend it into the desired shape. locking members '28 are so constructed that they will instantly engage withthemember 26 and rigidly. hold the lever 23 in adjusted position. ,The device isvery simple in con struction and is efficient for the purpose in.

tended. I I

.Lclaimz" I A spring bending device comprising a frame, means carried by said frame for engaging with the end or a spring,'means for engaging with the middle of the spring for bending the latter,' said means comprising a bar slidably carried by saidframe, a frame.

rigidly secured to'sai'd bar, a shaft-,'means for. actuating said shaft, an arm carried by said shaft,' and a" ball bearing race; conmeeting the free end, of said arm tosaidsecond named frame. 1

ABE WAL'RADT. I

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