US1710273A - Slip - Google Patents

Description

April 3, 1929. B. A. sEBRING ET AL 1,710,273

SLIP

Filed June 4. 1928 INVENTORS 05% u BY W i F i ATTORNEY.

Fatented Apr. 23, 1929.

UNlTED STATES.

BERT A. AND MYRON BAILEY, OF DENVER, COLORADO.

SLIP.

Application filed June 4, 1928. Serial No. 282,830.

(lur invention relates to devices iior drawing wires and other parts throughconduits in \Villlll they are sijibseipiently housed.

in building construction, it is a common expedient to build pi; into the walls lherco'l i'er kill, purpose of housing electrical w ring; an it has heretofore been diliicult 1o thread the wires through the pipe without means other than the bare hand for handli the socullcd h-line;-; by means of which the wires are di wn from one end of the pipe to and through the other end. I

All dillicultics heretofore experienced are eliminated by the use oi? our invention which provides an eliieient and practical means for pulling a wire through a conduit in a positive manner, and it is an object ol the invention to provide a device of simple construction capable oi being seemed to the so who or its fish-line at an; point thereol", by

a simple and readily accomplished manual operation.

in the accompanying drawings, in which like parts are similarly designated in the scv ral views ore i rcpr: seats a lace view oi an eml the cntion;

a swlion taken on the line 22 a taco view oi the opposite side shown in l igure l, and a section taken on the line 4%:

icing more specifically to the drawihe device consi o'l body-part con1- zed of a plate or small proportions so The plate is grooved leiug'thwise as at 6, for the purpose of mounting an operating member hereinafter to be described. The groove extends into an enlarged opening 7 and it is alined with an aperture 8 at an end ol the plate and with a socket 9 at the end of the opening 7 opposite to that at 4.5 which it connects with the groove.

Pivot-ally mounted upon a face of the body by means of bolts l3, are two clamping jaws 10, the opposite edges '12 of which are curved eccen'trically with relation to their pivotal axes and roughened or serrated to more firmly grip upon a needle placed be tween them.

The operating member ferred to comprises a bar 14 pored in the alined aperture 8 hereinbe'i'ore reslidably supand socket 9, and loosely extending through the groove at it nia be held in the hand or the user. I

16 provided with parallel slots 17 that extend at an ai'igle to the direction of its sliding motion. The slots cooperate with pins 18 on the two jaw members to cause the latter,

to turn simultaneously about their axes of rotation in opposite directions, when the bar is moved. lengthwise into the socket by pressure upon'its head. A coiled spring 19 in the socket yieldingly opposes the inward movement of thebar and returns the parts to their normal position when the head of: the bar is disengaged by the user.

From the above description, the operation o l the devi -e will be readily understood.

A wire 20 to be drawn through a pipe 21 is fastened at its forward end to a fish-line or needle 22 by any suitable means such as a loop at the end of the line. The fish-line is placed between the two clamping jaws while they are in their normal separated position indicated in Figure 3 of the drawings. The operator holds the device in the hand and by inward movement of the bar causes the jaws to clainp'ingly engage the {or drawing the line and the wire attached.

at the end thereof, through the pipe, and it is readily adjusted to a dillerent part of the line while the latter is held against retrograde motion by the operator so that the operation of pulling the wire through the pipe, may, be accomplished by a series of intermittent movements of the fish-line.

It is to he understood that the clamp jaws may be normally held in engagement by the spring acting upon the sliding bar, and separatel by pressure upon the head of: the bar by merely reversing the position of the slots or the position of the pins with relation thereto and that other modifications in the construction and arrangement of the parts of the device may be resorted to without de-- parture vfrom the scope of the invention.

\Vhat we claim and desire to Letters Patent is 1. A. device of the character described comprising abody part, pivoted jaw-meming operating member, having slots transverse to the direction of its movement, the

jaw-members having pins cooperative with the slots to cause simultaneous movement of the jaw-members in opposite directions by a sliding movement of the operating-member.

2. A device of the character described comprising a body part, pivoted jaw-mombers having cooperative gripping-edges eccentric to their axes of rotation, and a slit ing operating member having parallel slot-s slanting transverse to the direction of its movement, the jaw-members having pins co operative with the slots to cause simultaneous movement of the jaw-members in opposite directions by a sliding movement of the operating member.

3. A device of the character described comprising a body-part having a socket,

ivoted 'a'W-members havin coo ierative gripping-edges eccentric to their axes of rotation, a sliding bar extending into the socket of the body, in operative connection with the jaw-members, and a spring in the socket opposing inward movement of the bar.

4. A device 01" the character described the aw members, the jaw members and the sliding member havin cooperating pins and slots to cause simultaneous movement of the jaw members by movement of the sliding member.

5. A'device of the character described,

comprising a body part, pivoted jaw members having cooperative gri ping edges eccentric to their axes of rotation, a slidingoperating member for the operation of the jaw members, and a spring resisting moirment of the sliding member and disposed to open the jaws automatically when the sliding member is released.

In testimony whereof We have aflixed our signatures.

ERT A. SEEKING. MYRON BAILEY.

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