US1420635A - Wrench - Google Patents

Description

-A. c. KLOPPER.

WRENCH.

APPLICATlON FILED JUNE 21. 1921.

Patented June A7, 1922.

INVENTOR 14. 6. ,Kz DPPEE n-nomsrs UNITED STATES PATENT *oF icE,

AUGTIST CHARLES KLdPPER, ASBURY PARK, NEW JERSEY.

wnnncn.

Specification of Letters Patent. Patented J 11 2'7, 1922,

Application filed June 21, 1921. Serial No. 479,280. 2

i To all whom it may concern:

Be it known that I, AUGUST C. KLOPPER, a citizen of the United States, and a resident of Asbury Park, in the county of Monmouth and State of New Jersey, have invented a which can be conveniently used for remov-.

ing or replacin nuts which are awkward to reach, and .WhlCh is in the form of a crank arm so that the gears may be locked to allow the crank arm to be used as a lever wherever nuts are in more accessible places, or wherever greater leverage is desired to start the nut. 1

A further object is to provide a socket wrench of the character stated with improved means for locking the gears against -movement or releasing said gears so as to 15 is formed with i an angular recess 20 adapted to receive one end of 'the angular permit their operation.

A further object is to improve upon theconstruction illustrated in my pendingapplication filed November 6, 1920, and given Serial No. 422,225. r \Vith these and other objects in view the invention consists in certain novel features of construction, and combinations and an rangements of parts as .Will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings Figure l'is a viewin longitudinal section illustrating my improved wrench.

Figure 2 is a fragmentary elevation of-the socket end of the wrench.

Figure 3 is a view in section on the line 33 of Figure 2, the parts in Figure 3 being shown in a different position from that illustrated in Figure 1.

1 represents a tubular arm or .casing having angles or US 2 and 2 secured at its respective ends. These angles 2 and 2 are oppositely positioned, -as. shown clearly in Figure-'1, and in the angle 2' one end of a bearing sleeve 3 is secured and provides rotary mounting for a drive shaft 4,the.

latter having an operating handle .5 fixed to its outer end.

A shaft 6 is located in the-tubular casing or arm 1 and is provided with enlarged journals 7 adjacent its respective ends,

which turn freely'in the casing. Bevelled gears 8 and 9 are fixed or made integral to the respective ends of shaft 6 and the bevelled gear 8 meshes with a bevelled gear 10 on the inner end of shaft 4, said shaft 4 having an annular enlargement 11 adjacent the gear 10,-said enlargement having a bearing against the inner end of the'sleev'e 3, as clearly shown in Figure 1.

The angle 2 preferably constitutes a casting having a-recess 12 therein, in which the bevelled gear 9 is accommodated and is also made with a recess 13in which a bevelled gear 14 is located and is in mesh with the gear' 9. The'angle 2 is made with a bore 15 in which a shaft 16 has sliding movement.

One end of this shaft 16-is made angular, as shown at 17 andis movable through an angular central opening 18 in gear 9 and on the outer end of this shaft '16, whichprojects through the angle 2, a nut-receivlng socket '19 is fixed.

The angle 2 at the innerend of its-bore by rotary motion imparted by the handle 5 through the medium of the shaft, as above explained. To facilitate this longitudinal movement of the shaft 16', said shaft is of appreciablygreater length than the longitudinal dimension of the angle 2 and is formed preferably with a rounded head or'end 21,

Y anda recess 22 is formed in the angle 2 to provide ample finger space to permit manipulation of the shaft.

This shaft 16 is formed withan annular groove 23 adjacent'the head 21, and a springpressed pawl 24 is providedin the bore 15 and-adapted to ride into and out of this groove, so that when in the groove, it will hold the shaft in position to permit the gears to turn, and when out of the groove, the gears will be locked against turningmovement, as shown in Figures'l and 3. The

spring-pressed pawl 24 is preferably en-' gaged by a hollowscrew 25 which is remov-' ably positioned in a screw threaded opening 26 in the angle 2 so that it can be conveniently removed, as occasion may require.

It will thus be noted that the wrench may be conveniently changed from a gear driven wrench to a lever wrench by the longitudinal movement of the shaft '16.

'l/Vhen the shaft is forced to one extreme position, as shown in Figure l, which operaf portion 17 will be released from the recess 20 and the gear 14 will be permitted to turn,

. so that through the medium of the handle 5,

shaft 4,-gears 10 and 8, shaft 6, and gear 9, said gear 14 will be revolved and cause the shaft 16 to turn, thus imparting rotary motion to the socket 19.

By reason of the shape of the wrench, it can be conveniently used to engage a nut or bolt-head in awkward position, and the gears can be locked to allow the necessary leverage to start the nut and then the gears can be released to allow them to operate to turn the nut socket. A

Various slight changes might be made i the general form and arrangement of' the parts described without departing from the invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within'the spirit and scope of the appended claims,

I claim:

1. A wrench of the character described, comprising a tubular casing, a shaft supported by the casing at one end thereof and movable longitudinally in the casing, said shaft adapted when moved to one position to lock with the casingand against independent rotary movement, a nut-engaging socket at one end of the shaft, and means in the casing for imparting rotary movement to said shaft when the latter is in its unlocked position.

2. A wrench of the character described,

comprising a casing, angles at the respective ends of the casing, one of said angles c0nst1tut1ng a casting and having a longi tudinal bore, a shaft movable in said bore and having an angular portion, said angle having a recess adapted to receive the angular portion when the shaft is in one extreme position to hold the shaft against rotary movement, a gear having an angular open-- ing through which the shaft is movable, a socket fixed on one end of the shaft, a second gear meshing with the first-mentioned gear, and means in the casing for imparting a turnin movement to said gears when the said shaft'is moved longitudinally to a position to free its angular portion from the recess.

3. Awvrench of the character described,

comprising a tubular casing, angles at the respective ends of the casing oppositely posi- Y tioned, a shaft in one of said angles at right angles to the casing, said shaft movable longitudinally and having an annular groove therein, a spring-pressed pawl adapted to engage in said groove and hold the shaft comprising .a tubular casing, angles at the respective-ends of the casing oppositely positioned, a shaft in one of said angles at right angles to the casing, said shaft movable longitudinally and having an annular groove therein, a spring-pressed pawl adapted to engage in said groove and hold the shaft in one extreme position, a socket on one end of said shaft, said shaft having an angular portion, a bevelled gear having an angular opening receiving the angular por-- tion ofthe shaft, said anglehaving a recess therein adapted to receive the angular portion of the shaft when the latter is in its extreme position, a shaft positioned longitudinally in the casing, a sleeve secured to one of said angles and located ata right angle to the casing, an operating shaft in said sleeve, a handle on one end of the operating shaft, and bevelled gears connecting the shaft in the casin with the other shafts.

AUGUST HARLES KLOPPER.

Witness:

HARRY J. Booms.

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