US714426A - Machine for forming loops on wire ends. - Google Patents

Description

Patented Nov. 25', I902.

no. 714,426. v

. 'H. WILSON. V

MAC HIN E FOR FORMING L'OUPS ON WIRE ENDS.

(Application filed Apr. 9, 1902.)

4 Sheets-$he et I.

(No Model.)

WITNESSES: M

TH: Nan k pp Z 0 mm 5' 2 v o N d e t n e t a DI H 5 2 v. M 7 0 N MACHINE FUR FORMINGLOOPS 0N WIRE ENDS.

(Application filed ApnQ, 1902.)

4 Sheets-Shoat 1'2.

|NVENTOR WITNESSES:

m: nonms PETERS co PNGTO-LITHQ, WASHINGTON, n, c;

.- No. 7I4,426. Patented Nov. 25,1902.

H. WILSON.

MACHINE FOR FORMING LOOPS ON WIRE ENDS. Application filed Apr. 9, 1902.

(No Model.) 4 Sheets-"Shea 3.

WHNESSES: lNVENTOH No. 7|4,4'2s Patsn ted Nov. 25, I902.

H. WILSON.

MACHINE FOR FORMING LOOPS ON WIRE ENDS.

Appli cation filed A r. 9, 1902.

FIG?

TUNrrEn STATES HENRY WILSON, OF NEW YORK, N. Y.

MACHINE FOR FORMINGLOOPS ON WIRE ENDS.

SPECIFICATION formingpart of Letters Patent No. 714,426, dated November 25, 1902.

' Application filed April 9, 1902. Serial No. 102,059. (No model.) I

To all whom it may concern.-

Be it known that I, HENRY WILSON, a citizen of the United States of America, residing at New York, in the county and State of New York, have invented certain new and useful Improvementsin Machines for FormingLoops on Wire Ends, the following being a complete specification of such machine with reference position, the inserted wire being shown in dotted lines. Fig. 2 is a side elevation of the same looking toward the front of Fig. 1. Fig. 3 is another side elevation looking toward the back of Fig. 1. Fig. & is a detail side elevation showing the flattened head of the main shaft with the bending mechanism,

the wire being inserted and all parts in their inoperative position. Fig. 5 shows the same view as Fig. 4., the bending mechanism being in its position after effecting the bending of the wire. Fig. 6 is a plan view of Fig. 4. Fig. 7 shows the completed wire loop.

The same letters of reference indicate corresponding parts of my machine throughout the drawings.

Referring to the drawings, A indicates the base-plate of the machine, which is suitably supported, so asto bring the machinery in a proper position for use.

B indicates the main shaft, which is journaled in two bearings upon the base-plate A. The forward end B of this shaft has a square flattened form. 19 is a lug secured upon this flattened head B and provided with a recess, so as to support the inserted wire 2 before the bending operation is started. 6' is an angular cut-out guide-groove in said flattened head B, the latter carrying a second lug 11 which also serves as support for the wire .2.

Above lug b a pin b is secured to the head portion 13, laterallyprojecting from the same. Another pin 0 guided by said angular groove b and projecting from both sides of the flattened head B, carries at one end a frictionroll 0 while the other end is pivotally attached to a connecting-rod c, the other end of which is fulcrumed at an arm 0, secured at a sliding ring 0 upon the main shaft 13.

The means for operating the machine are exactly the same as in my aforesaid prior application and consist of the following parts:

H is a disk loosely mounted upon the main shaft 13 and driven by any suitable power.

71. indicates a coupling device for throwing disk H into engagement with the main shaft. This coupling is operated by a foot -lever which at the same time effects the shifting of the aforesaid sliding ringC by'means of a connecting-rod D and lever D.- The upper end of the latter formsa fork embracing said sliding ring, which, although loosely mounted upon shaft B, so as to allow the sliding motion, is engaged with the same by a spline connection.

The coupling h is operated through the following combination: A link (1 is pivotally connected to the lever D and to a crank-arm 01', secured upon shaft K, which is journaled in bearings downwardly projecting from the base-plate A. On one side of this shaftK an arm'K is secured, carrying a swinging lever L, one end of which is connected with. the arm K by a spring 70, while the other end is formed to a hook Z. A horizontal lever G, fulcrumed upon the base-plate A, is placed so asto be engaged by said book 6. This horizontal lever G is drawn toward hook Z of the swinging lever L by means of a spring on. In order to raise the spring-connected end of the swinging lever L for releasing lever Gr when sufliciently drawn back, as indicated in dotted lines in Fig. 3, a block P, with a suitable camsurface, is provided on a frame P, which is screwed upon the base-plate A. The other end of this lever G is connected withasliding ring E by means of apin' projecting from said lever and loosely engaged by the projecting side flanges ofsaid sliding ring, which operates the coupling h of the driving-disk H.

The amount of revolutions of the main shaft is limited by the following means: A pinion N is mounted upon the outer end of shaft B, meshing with a gear N upon another shaft F, alsojournaled in bearings projecting from the base-plate A. This gearing may be of any suitable ratio, so as to allow several revolutions of the main shaft 13 during one revolution of shaft F. A disk F is secured on shaft F, having a suitable recess for a pin 9, laterally projecting at G from the horizontal lever G.

The clamp device for tightly pressing the free end of the wire .2 after bendinga loop to the long end of the wire body, so as to allow the twisting operation,is of the same construction as in my aforesaid prior application, and comprisesasupport R, screwed upon the baseplate A, a fixed block laterally projecting from this support, and an oscillating clamplever R, fulcrumed at the support R, so as to form a clamp with said fixed block. R is a connecting-rod pivoted to the oscillating clamp-lever R and to the foot-lever, thereby elfecting the operation of the clamp device by depression of the latter.

The bending of the loop is effected in the following manner: The wires is inserted in a position as indicated in Figs. 4 and 6. In depressing the foot-lever the upper forked end of the lever D operates the sliding ring 0, thus shifting pin 0 through the medium of connecting-rod c, upwardly in its guidegroove 1), whereby friction-roll c forces wire 2 around pin b and during the last part of its motion toward the long end of the wire body to a position as shown in Fig. 5. In this moment the clamp device comes into effect, thus holding the two wire ends of the so-formed loop tightly together, while at the same time the coupling throws the drivingdisk H into engagement with the main shaft B, thereby starting the twisting operation, which is limited by pin g entering the recess in disk F after a single revolution of the same has been elfected.

Having now fully described my invention relating to improvements in forming loops on wire ends, what I claim, and desire to secure by Letters Patent, is

1. In combination with a machine for forming loops on wire ends, a wire-bending device, comprising a shaft, a flattened head on said shaft, an angular cut-out guide-groove in this flattened head, a pin sliding in said groove and projecting with both ends from the flattened head, one of these projecting ends of said pin carrying a friction-roll, so as to effect bending of the wire, a fixed pin, laterally projecting from the flattened head to resist this bending operation, a lug secured below said pin so as to support the wire before and during the bending operation, and means for operating this wire-bending device comprising a connecting-rod and a sliding ring on said shaft, substantially as and for the purpose set forth.

2. In combination with a machine for forming loops on wire ends, a wire-bending device, comprising a shaft, a flattened head on said shaft, an angular cut-out guide-groove in this flattened head, a pin sliding in said groove and projecting with both ends from the flattened head, one of these projecting ends of said pin carrying a friction-roll, so as to effect bending of the wire, a fixed pin, laterally projecting from the flattened head to resist this bending operation, a lug secured below said pin, anotherlug having asuitable recess and being also laterally secured upon the flattened head, both lugs being arranged so as to support the wire before and during the bending operation, and means for operating this Wire-bending device comprising a connecting-rod and a sliding ring on said shaft, substantially as and for the purpose set forth.

New York, N. Y., 24th day of March, 1902.

HENRY WILSON.

Witnesses:

BRUNO VON BiiLTzINGsLoWEN, PAUL SADISOH.

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