US1558114A

US1558114A - Telescoping handle for lifting jacks

Info

Publication number: US1558114A
Application number: US8440A
Authority: US
Inventors: John A Morrison
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-02-11
Filing date: 1925-02-11
Publication date: 1925-10-20
Anticipated expiration: 1942-10-20

Description

J. A. MORRISON TELESGOPING HANDLE FOR LIFTING JACKS Oct. 20, 1925 Filed Feb. 11

Patented Oct. 20, 1925.

UNITED STATES JOHN A. MORRISON,

01* IEANSFIELD, OHIO.

TELESCOPING HANDLE FOR LIF'IING JACKS.

Application filed February 11, 1925.

This invention relates to handles for op erating lifting jacks of that general type which are provided with a socket or shank for the connection of an operating handle, and more particularly to a telescoping, collapsible handle.

The objects of the invention are to provide an operating handle comprising a tu bular portion, a shank adapted to be telescoped therein, and provided at its outer end with a head for engagement with the usual socket or shank upon a lifting jack, a cross head being provided at the outer or free end of the tubular member, a crank handle being carried by said cross head and arranged to be folded against the tubular member when not in use.

An embodiment of the invention thus set forth in general terms is illustrated in the accompanying drawing, in which-- Figure l is a side elevation of the improved handle in the open or operative position;

Fig. 2, a similar view of the handle in the folded or telescoped position;

Fig. 3, an enlarged longitudinal section through a portion of the tubular member showing the means for frictionally holding the shank in the open position therein, and,

Fig. 4:, a detail perspective view of the cross head.

Similar numerals of reference indicate corresponding parts throughout the drawmg.

The tubular portion 1 is provided at its upper end with the cross head 2 which may be rigidly connected thereto as by the boss 3 or the like. This cross head is provided upon one end with the socket 4, terminating in the hand grip 5. The other end portion of the cross head comprises a pair of spaced rails 6 connected at their outer ends by the yoke 7, the upper edges of said rails being inclined as shown at 8.

The crank handle 9 has its inner end portion located between the rails 6, a cross pin 10 preventing removal of the crank but at Serial No. 8,440.

the same time permitting the same to be swung into the folded position as shown in Fig. 2, or to be moved into the open position shown in Fig. 1, the inner end portion thereof being inserted into the socket 4 of the cross head, and the ends of the pin 10 frictionally engaging the inclined upper edges of the rails 6, holding the crank rigidly in place and in engagement with the yoke 7 The lower end of the tubular member 1 is reduced and squared as shown at 11, forming a square sleeve to slidably receive the square shank 12, projections such as the rivet heads 13 being formed upon opposite sides of the inner end portion of said shank and arranged to frictionally engage the inclined portion 14 of the tubular member to frictionally hold the shank in open or ex tended position.

The outer or free end of the shank 12 may be provided with a head 15 having the studs 16 for engagement with a common form of socket in the lifting jack, or may be provided with any other suitable coupling means for connecting to the usual socket or shank of the jack.

When the handle is extended or opened as shown in Fig. 1 the shank 12 and crank 9 are frictionally held in open position permitting the handle to be easily operated to raise or lower the jack. and when it is desired to telescope or fold the handle it is only necessary to push the shank 12 into the tubular member 1 and to withdraw the end of the crank 9 from the socket 4 and fold the crank into the position shown in Fig. 2. permitting the handle to be stored in a small space.

I claim:

1. A folding handle for lifting acks comprising a tubular member having a cross head at one end, a crank loosely carried by the cross head and arranged to be rigidly connected thereto at right angles to the tubular member, and a shank slidably mounted in the tubular member and arranged to be frictionally held in extended position.

2. A folding handle for lifting jacks comprising a tubular member having a cross head at one end, said cross head having a socket at one end and spaced rail members connected by a yoke at the other end, a crank having one end located between said rails and having a cross pin for preventing removal thereof, and a shank slidably mounted in the tubular member and arranged to be frietionallg; held in extended position.

3. A folding handle for lifting jacks comprising a tubular member having a folding crank at one end. the other end of the tnbnlar member being tapered, a shank s1id ably mounted in the tubular member and projections upon the inner end of the shank for frictionally engaging the tapered por 10 t-ion of the tubular member.

In testimony that I claim the above, I have hereunto subscribed my name.

J OHN A, MORE-1 SON.