US1080472A - Cable-grip. - Google Patents

Description

W. J. PARKER & A. A. STROM.

Patented Dec. 1913.

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cumin srarns PATENT ornion.

WILLIAM JOHNSON PARKER AND ABRAHAM ANDRES STROM, OF HALIFAX, NOVA SCOTIA, CANADA.

CABLE-GRIP.

Specification of Letters Patent.

Patented ]Dec. 2 1913.

Application filed December 7, 1912. Serial N 0. 735,360.

' To all whom it may concern:

Be it known that we, WILLIAM JOHNSON PARKER and ABRAHAM ANDRES SrRoM, subjects of the King of Great Brltaln, residing at I-Ialifax,'in the Province of Nova Scotia,

Canada, have invented certain new and us ful Improvements in Cable-Grips, of which the following is a specification.

The present invention relates to certain new and useful improvements in wire or cable grips such as are adapted to be em ployed forstretching cables or the like.

One of the objects of the invention is to provide a cable grip which is compact in its construction, which comprises few and durable parts, and which .will tightly and firmly grip a cable and will not injure an insulating wire or cause kinking of the wire.

While the cable grip may be employed wherever such a grip is desired, yet it is more particularly designed for use in the laying of deep sea cables, where it is very important that the grip be positive and reliable in its action so as to prevent slipping of the cable at an inopportune time, or injury to the cable.

With. these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointedout in the appended claims.

For a full understanding of the invention reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation of a cable grip clamp constructed in accordance with the invention. Fig. 2 is a transverse sectional view on the line 22 of Fig. 1. Fig. 3 is a similar view on the line 3.3 of Fig. 1. Fig. 4 is a bottom plan view of the upper clamp member. Fig. 5 is a side elevation of the lower clamp member.

Corresponding and like parts are referred to in the following descriptio and indicated in all the views of the drawings by the same reference characters.

Specifically describing one embodiment of the invention, the numeral 1 designates the base or body portion of the stock, the said stock being formed in complemental sections which produce a converging guideway within which the tapered or wedge shaped jawis mounted. The'base 1 is of an elongated formation and is provided at the rear end thereof with an eye 2 by means of which the device can be secured to any suitable stationary support. The upper face of the base 1 is provided with a longitudinal groove or guideway 3 which extends the entire length thereof and forms a seat upon which the jaw 4 is slidably mounted. 'Projecting upwardly from the base 1 upon opposite sides of the guideway 3 are a pair of flanges 5, the said flanges being arranged atthe forward end of the base and only extending from said end to about the middle of the base. Each of these flanges is provided upon the outer side thereof with a longitudinal groove 6, the said grooves being located immediately above the top of the base 1 and extending from the rear ends of the flanges 5 to a point spaced from the forward ends of the flanges where they terminate in the shoulders 7.

The upper and complemental section 8 of the stockisremovably fitted against the upper face of the base 1 and is constructed to have a detachable and interlocking connection with the flanges 5. This upper section 8 is formed with a tapered groove or seat 9 which has an opposed relation to the seat 3 of the base 1 and receives the wedge shaped jaw 10. This detachable stock member 8 is considerably shorter than the base 1, the total length thereof being substantially equal to the length of the flanges 5. The sides 8 of the removable member 8 fit upon the exterior of the flanges 7 andv are provided with the ribs 11 which are adapted to enter the grooves 6 of the flanges 5. i

When applying the detachable member 8 to the base 1, it is first fitted against the rear end of the base 1 with the ribs 11 in alinement wit-h the grooves'fi, and then slid forwardly upon the base so that the ribs 11 are received within the slots 6. These ribs 11 abut against the shoulder 7 when the detachable section 8 has reached its operative position, with the nose or forward end thereof flush with the forward end of the base 1. In order to detach the removable section 8 from the base 1, the above operation is reversed.

The wedge shaped jaw 4 slides freely upon the base 1 while the jaw 10 has a wedge shaped formation and is designed to cooperate with the inclined face of the seat 9 of the removable member to force the jaws together. and cause them to gripa wire or cable inserted between the jaws. The forward ends of the jaws4c and 10 are pro:

vided with the respective rounded portions ."01 enlargements 4 and 10 which are designed to be tapped upon with a hammer or other tool for the purpose of forcing the member 8 of the stock, the said member 8 and base 1 are connected by a'chain 12, the ends of the chain engaging suitable ears 13 upon the respective members. This chain is of position and cable,

such a length as to admit of the members being readily detached from each otherwhen desirable. It will also be noted that the wedge shaped jaw 10 is provided with a groove 14 for receiving the end of a pin 15 upon the removable member 8, the said pin serving to. retain the wedge shaped jaw in to engage the ends of the slot to limit the sliding movement of the wedge shaped jaw. The greater the pull upon the the.more tightly the jaws t and 10 will gripthe same, formation-ofv the jaw 10 cooperates with: the inclined base of the seat 9 to force the jaws tightly together when any pull is exerted upon the same. In order to release the jaws, the enlarged forward ends 4? and 10 thereof may be lightly tapped with a hammer or other suitable implement, thereby loosening the same. I Having thus what we claim as new and desire to secure by Letters Patent, is

1. A cable grip including a base formed with a seat and provided upon opposite sides of the seat with flanges, said flanges being ably gripping faces being since the wedge shaped described the invention,

rheonva formed with longitudinal grooves which terminate at, one end thereof in shoulders, a removablemember formed with an opposed seat and with" sides adapted to slidengagethe before mentioned flanges, the said sides being provided with ribs adapted to enter the longitudinal grooves of the flanges and engage the shoulders at the ends thereof to limit the sliding movement ofthe removable member and retain the same in position, the seats, of the two members converging toward each other, and cooperating jaws slidably mounted upon the seats, one of the said jaws having a wedge shaped formation.

2. A cable grip including-a base provided with a seat and formed with side flanges on opposite sides of the seat, the said side flanges extending from one end of the baseto an intermediate point in the length thereof and being provided. with longitudinal grooves which extend inwardly through the rear engs of the side flanges and terminate in shoulde s, a removable stock member which is shorter than the base and is provided with a seat and'wi'th sides which embrace and 'slidably engage the before mentioned flanges, the said sides being provided with longitudinal ribs which are adapted to enter the grooves of the flanges from the rear thereof and engage the shoulders at the forward ends thereof to -limit the forward sliding movementv of the removable stock member and hold the same in position, the seats of the two members having a converging relation, and a pair of cooperating jaws. slidably mounted between the converging seats, one of the jaws having a wedge shaped formation.

In testimony whereotwe aflix our signatures in presence of two witnesses.

Witnesses A. BURKE, N. Invmos'ronn.

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