US922814A

US922814A - Gripper for wire.

Info

Publication number: US922814A
Application number: US38190507A
Authority: US
Inventors: Juan H Reece
Original assignee: Humphrey & Sons
Current assignee: Humphrey & Sons
Priority date: 1907-07-02
Filing date: 1907-07-02
Publication date: 1909-05-25
Anticipated expiration: 1926-05-25

Description

J. H. BEECH.

GRIPPER POR- WIRE APPLICATION FILEJJULY 2, 1907.

Patented May 25, 1909 UNITED STATES T ()FFIGE,

JUAN H. REECVE, OF JOLIET, ILLINOIS, ASSIGNOR TO HUMPHRE Y & SONS, OF JOLIET, ILLINOIS,

A GOPARTNERSHIP.

GRIPPER FOR WIRE Specification of Letters Patent. Patented May 25, 1909.

Application filed July 2, 1907. Serial No. 381,905.

hole 4 has entered thereinto a gripper aw 6, each gripper jaw having an acting face 7 at the front end; and each acting face, as shown, is provided with serrations or teeth 8 to effect a firm bite on the wire, but the serrations or teeth could be omitted if so desired. Each gripper jaw, atits front end, has a semi-countersink 9, to facilitate the en tering of the end of the wire between the acting faces of the jaws, and, as shown, the body or plate of the gripper has a longitudinal hole 10 in line with the teeth or serrations, for the passage of the end of the wire a sufiicient distance within the gripping To (all whom it may concern: 4 I Be it known that I, JUAN H. REECE, t citii zen of the United States, residing at Joliet, in the county of Will and State of Illinois, have invented certain new and useful Improvenients in Grippers for \Vire, of which the following is a specification. I l The gripper of the present invention is specially adapted and intended for use in p acing the wire into position for winding on the drawing block, for which purpose the gripper should be of a construction to iirmly grip the wire and be capable of a free connection with the drawing block, so as to be drawn toward and onto the block as the block revolves, carrying with it the caught wire.

The objects of the present invention are to construct a gripper adapted for direct conon the wlre, by which the wire wi.l be held firmly between the gripper jaws. The body or plate 1, in the construction shown. has openings or holes 11, and, as shown, the

2H nection with the drawing block, and so passage 10 opens into the front hole 11, and formed as to grip the end of the wire and. the wire 12, after passing between the acting carry the gripper with the wire directly onto faces of the gripper jaws, can enter the pasthe revolving block; to construct a gripper sage 10 and into the front opening 11, as having a frame or head carrying a pair of shown in Fig. 1.

gripping jaws arranged at an inclination to A coiled spring 13 is located in each paseach other, each jaw having a gripping face to bite or grip the wire; to furnish means for holding the gripper jaws in their advanced position under a yieldable pressure which lwill allow of the insertion of the wire; and to improve generally the construction, arrangement and operation of the gripper as a whole.

The invention consists in the features of construction and combination of parts hereinafter described and claimed.

spring abuts against the rear end of each gripper jaw, and the other end of each coiled spring abuts against a-block 14 secured in the hole 4 of the socket or tube 3 atits rear end by a cross pin 15 or otherwise, and one of the heads or blocks 14 has formed thereon, or secured thereto, an eye 16, for the attachment of a chain or other flexible connection when the gripper is used with a wire drawing block.

In the drawings Figure 1- is a longitudinal In use, whether with a drawing block, or sectional plan view of the gripper; Fig. 2 a otherwise, the end of the wire is entered belongitudinal sectional elevation of the grip- I tween the gripping faces of the gripper jaws,

to per; Fig. 3 an end el'evation'of the gripper; i such entrance of the wire being permitted by Fig. 4 a perspective view of the gripper jaw; the retraction of the jaws through the yield and Fig. 5 a front elevation of a wire drawof the coiled springs 13 in entering the wire,

ing block, showing the gripper of the invenand after the end of the wire is entered betion connected therewith. tween the acting faces of the gripper jaws a The gripper of the present invention has a backward draw or pull on the gripper, from plate or 'body 1, with an eye 01' loop 2 at its the eye or loop 2 and the chain or other conrear end, for the attachment of the gripper, nection secured to the eye or loop, will cause as a whole, to a chain or other connection, by the body or plate to recede, and such receswhich the gripper can be applied to a wire sion of the body or plate will, through the indrawing block. The gripper has, on each clination of the passages or holes 4, serve to side of the body'or plate 1, inclined sockets 3, project the gripper jaws, and force such jaws each socket having a passage 4, and the two forward and inward so as to iirnily bite or sockets coming together at the front end, and grip the wire, and such bite or grip on the forming an apex or nose 5, with aflat face, in wire will continue so long as a rearward the construction shown. Each passage or draw is applied to the gripper body or plate.

faces of the jaws, to insure a lirm bite or grip sage or hole. 4, and one end of the coiled The gripper of the present invention is of simple construction, and enables the end of the wire to be readily entered between the gripping faces of the jaws, and a rearward or recededinovenient of thegripper body or late will at once act and force the acting races of the gripperjaws toward each other, so as to firmly ite or. grip the end of the wire, and such bite or. grip will continue as long as a force is exerted to draw rearward on the gripper body or plate, thus enabling a single grip or bite to be continued without releasing the wire until the drawing operation of the wire to the amount required is finished.

The gripper of the present invention is shown, in Fig. 5, as connected with a wire drawing block by a chain 17 attached to the eye or loop 2 and. to the block, and a chain 18 attached to the eye or loop 16 and to the block, so as to furnish a flexible conneetioubctwecn the gripper and the wire drawing block by which the gripper can be drawn down to position to bite or grip the end of the wire after passing the drawing die. The wire drawing block 19 can be of any usual and well known construction,

and is raised to stop the revolution thereofby lift or push arms 20 located on opposite sides of the block, and engaging with the under face of the block as usual. Each push or lift arm 20 is connected by a pin or pivot 21 with a cradle/22 mounted on a pivot 23in a bracket arm' .24, so that the cradle can swing on the pivot to raise and lower the lifting or push rods or bars. The free end of the cradle has an eye to which is connected one end of a rod 25, the other end of which is connected with a kick-off lever 26 operating in connection with stops 27 and 28 as usual. The wire drawing block, when lowered, is driven by a shaft 29 through in terzneshing gears 30 and 251, the latter of which is driven by a shaft 32 as usual. A. frame formed of a lower longitudinal beam 33, vertical posts 34, and an upper longitudinal beam supports the block and operating bars as usual, and a draw die 36, of the usual construction, is located adjacent to the block.

The gripper of the present invention is well adapted for use with a wire drawing block, as it can be connected directly with the block and be drawn down to enter the end of the wire between the acting faces of the gripper jaws so that, as the block is revolved, a rear draw will be furnished for the gripper body or plate by which the gripper jaws will be made to firmly grip or bite the end of the wire, and inasmuch as the wire must be drawn forward with the gripper, it follows that a single grip is all that is neces sary to bring the wire into position to wind onto the wire drawing block, thus dispensing with the necessity of making several grips or bites on the end of'the wire before the wire is drawn into position to be caught by the block and Wound thereon, which makes a considerable saving, as, instead of several grips or bites, which destroy the wire, only one grip or bite is necessary with the gripper of the present invention connected directly with the drawing block.

The gripper of the present invention, while specially applicable for use with a drawing block, can be used with other appliances, and

' for other purposes than drawing wire, where a gripper is wanted which will firmly'grip or bite the wire by and through a rearward draw on the body or plate of the gripper, for the draw on the body or plate of the gripper to act and force inward the acting faces of the. gripper jaws.

What I claim as new and desire to secure by Letters Patent is:

In a gripper for wire, the combination of a plate, forwardly converging longitudinal socket members, one on each side of the plate and independent of each other and extending longitudinally of the plate, the two socket members united at the front end and forming a cross nose with a central opening extending thcrethrough in a straight longitudinal line, and an endwise yieldable gripper jaw for each socket member carried by and independently movable in its socketmember, each gripper jaw having its acting end extending into theopening of the cross nose and having on its front side an acting face diagonally of the body of the jaw and inwardly extending in a plane parallel with the center of the nose opening, for a rear draw on the plate to force the gripping faces of the jaws into engagementwith the wire, substantially as described.

JUAN H. REECE.

Witnesses Lnwrs W, CoNNELL, HARRY B, HUMPHREY.