US 1114637 A
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Description (OCR text may contain errors)
' H. NOLAN.
APPLIOATIONIILEDJULY 30, 1913.
Patented 0013. 20, 1914.
UNITED STATE-s 'PATENT carica.
HENRY NOLAN, OF BROOKLYN, NEW YORK. Y
Specification of Letters Patent.
Patented Oct. 20, 1914.
Application filed-July 30, 1913. Serial No. 782,152.
To allai/10m. it may concern Be it known that I, HENRY NoLAN, a citizen of the United States of A1nerica,fre siding at Brooklyn, in the county of Kings and State of N ew York, have invented new and useful Improvements in Cable-Grips, of
- loads on the various grips will be evenly distributed over Ythe entire device.
lt is also my purpose to provide a multiple grip device of the class described wherein each grip will be formed of a number of strands of wire bent into spiral form and intersecting one another whereby the grip may be contracted and expanded to facilitate the gripping action, and wherein a part of the strands of each grip will Jform an equal part of the strands of another grip, thereby enabling the loads on the various grips to be evenly and uniformly distributed over the entlre device as a whole irrespective of the load `or resistance on any is a view in side elevation of a multiple grip constructed in accordance with the present invention. Fig. 2 is an enlarged fragmentary view of one of the grips showing the construction thereof, and 3. is a diagrammatic View showing the manner of arranging the strands of wire to form the individual grips. i
Referring now to the accompanying drawing in detail, the numerals 1, 2 and 3 designate the individual grips of a multiple cable gripping device and these grips are formed of strands of wi're arranged in such manner that a part ot' the strands of cach grlp form an equal part of the strands o1 another grip, thereby enabling the capacity of the device to be varier and the loads on the .various grips to be evenly and uniformly distributed over the device as a unit. For instance, as illustrated in Fig. 3 of the drawing, one-half of the strands of wire forming the grip 1 have their opposite extremities arranged to lform one-half of the grip 2, these strands being indicated at A, while theV strands forming the remainlng half of the grip 1 and indicated at B have the free ends thereofarranged to form one-half of the grip 3. Coperating with the ends of the strands A forming one-half of the grip 2, are strands (l, the free end portions of the latter coperating with the end portions of the strands B to complete the grip 3. Thus, it will be seen that the strands of wire A form one-half of the grips 1 and 2, while the strands B form onehalt of the grips 1 and 3, the strands C forming the remaining halves of the grips 2 and 3. By means oit this arrangement of the strands, the loads on the grips are `evenly distributed over the entire device as will be readily understood.
In order to form the portions of the various wires constituting each grip linto socket or grip formation, I intel-weave the respective portions in lsuch manner that each individual wire is of spiral form and inter-l sects every other wire. arrangement of the wires each grip may be expanded and contracted. Should the cable end of larger diameter than the normal diameter of a particular grip, be inserted in such grip, such cable end will tend to ex-v pand the grip in the application of the latter to the former. However, when a pull is exerted upon the grip, thel grip will contract, incident to the frictional en agement between the various strands thereo and the cable, thereby setting up a binding action between the inner wall of the grip or socket and the cable. The intermediate portions of the wire strands forming the various grips are trained over an eye 4 and suitably secured thereto as by a cord 5. Sleeves 6 encircle groups of strands between the eye By means of this 4 and the grips lso las to prevent abrasion loe-l tween the strands When the grips l and 3 move toWardd the middle grip.
From the foregoing description taken in connection with the accompanying drawing, the construction, mode of. operation and manner of employing my invention will loer formingY one-half of the third grip, one-half of the strands o the third grip forming the remaining half of the second grip, a loopv formed intermediate of the ends of the strands.
2. A cable gripping device comprising `three grips formed of strands of wire Woven y into spiral form, one-half of the strands of one lgrip forming one-half of another grip, the strands intermediate of their lengths being formed into va vsingle eye, and sleeves encircling groups oi' strands adja- .cent the eye Al'or preventing abrasion between the strands when the outer grips move toward the middle grip.
ln-testimony whereof l aiiix my signature in presence of two witnesses.-
' HEN NOLAN.
NVitnesses y CMAS. E. NELSON, A. G. JACKSON.