US1471448A - Gripper - Google Patents

Description

Oct. 23, 1923. 1,471,448

C. W. BURROUGHS GRIPPER Filed June 1, 1922 HQ 5. F164.

INVENTOR CHARLES WESLEY BuEQouGHs.

ATTOQN EY.

iatenied Get. 23,1923.

CHARLES WESLEY ncnnonens,

OF MONTREAL, QUEBEC, CANADA.

;1 enrrrnn. v

Application filed June 1,

It has for its object, to provide a gripper.

that can be readily and securely attached to the lug or corner of a bag, at the end'of a tow line or hoisting rope.

A further object is to provide a gripper that can be instantly released without effort.

I am aware that various forms of gripping tongs are known and used, and that those having rotating jaws arenot novel. I

My invention consists of a pair of parallel tongs with rotating jaws'having faces of a novel form and construction.

Reference is made to the annexed drawings, in which Figure 1. is a side view of thev 'ripper.

Figure 2. is a view of the edge of the gripper.

Flgure 3. is a view of one of the faces.

Figure 4. is a view of the opposite face.

Figure 5. is a cross sectional View of the opposed faces.

In the form shown in Figure 1. the levers 1.-1. are pivotedtogether at 2. and also each lever is pivoted to one jaw arm 3. by the pins 4. i. Each jaw arm 3. has a slot 6. in which the pins 5. 5. in the levers 1.1., travel, when the gripper is opened or closed. One of the levers 1. has a grooved pulley l2. journalled on a pin 11., while the other lever has a terminal pin 10. to which the end of the rope 13. is secured.

To the ends of the jaw arms 3. 3. are 'pivotally attached the jaw faces 7. and :8. These jaw faces are circular in form and are constructed with concentric grooves 71. and 81. adapted to mesh when brought together, as will appear by the view shown in Figure 5. The grooves of one face are made slightly wider than the ridges of the other face, so that they mesh freely. j V 7 With such a construction, the gripper, when placed over the lug or corner of a'bag,

1922. Serial No.1 565,202.

' and the rope is drawn taut,becomes securely attached. By means of the. rotation of the faces, the gripper at oncetakes a position.

7 in which the pull is direct, and owing to the.

matched concentric grooves thereis no possibilityof the bag slipping orbecoming loose.- 1 V The. gripper is instantly released by loosenin the tension of the rope and spreading the evers.

Owing to, the strong construction'of the gripper, it is capable of withstanding rough usage. a

The gripper can be operated by a toggle or other equivalent means, but I prefer to use the rope and pulley as shown and described. v j

- Bags orcontainers, by means of this invention can be hauled or hoisted rapidly and 7 released where desired instantly. What I claim is 1. In a gripper, the combination of a pair of parallel tongs, with jaws having rotating gripping faces which are grooved concentrically, a tow rope and means to close the jaws bythe tension of the tow rope.

2. In a gripper, the combination of a pair of parallel tongs, with jaws bearing circular rotating gripping faces and concentric 'rooves therein, adapted to mesh to gether, a tow rope and means to close the jaws by the tension of the tow rope. I

3. In a gripper, the combination of a'pair of jaw arms having rotating gripping faces, grooved concentrically with levers centrally pivoted together, each lever pivoted at one end to one jaw arm, and having a pin passing through a slot at the end of the'opposite jaw arm, a rope secured-to the-end of one lever, and a grooved pulley journalled at the end of the other lever.

etfIn a. gripper, a pair of rotating jaw faces adapted to operate in parallel, grooved concentrically to form male and female faces which mesh together, having the grooves of one face wider than the ridges on the other face. 7 1

5.' In a gripper, the combination of a tow

Images