US653476A - Wrench. - Google Patents

Description

Patented July l0, I900.

F. C. HUTTV&- T. S. STAFFORD. WRENCH.

(Application filed Apr 14, 1900.)

(No Model.)

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STAFFORD, on KENNETH, INDIANA,

ASSIGNORS OF ONE-THIRD TO MARGARET GREENBANK, OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 653,476, dated July 10, 1900.

Application filed April 14, 1900. Serial No. 12,795. (No model.)

' T aZZ whom it may concern.-

Be it known that we,FREDERIo C. HUTT and THOMAS S. STAFFORD, citizens of the United States, residing at Kenneth, in the county of Cass and State of Indiana, have invented certain new and useful Improvements in Wrenches and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Our invention relates to a socket wrench of the reversible type, and has reference more particularly to the class of wrenches which are especially adapted for use in manipulating the nuts on railway-track bolts, one object being to provide a cheap and durable wrench which shall possess advantages of a ratchet-wrench and also be capable of instantaneous reversal, so that a nut may be worked back and forth on its bolt in cases when one fits too tightly upon the other.

Another object is to provide a wrench in which the part which usually wears out first may be cheaply replaced by anew part without special fitting, thus saving the more expensive part.

The invention consists of a socket-head and a lever and lever-head of new and novel form of construction; and it consists, further, in the parts and combination and arrangement of parts hereinafter particularly described and claimed.

Referring to the drawings, Figure l represents our complete wrench in a central 1ongitudinal vertical sectional view; Fig. 2, a plan view of the top of the socket-head, on a reduced scale; Fig. 3, a bottom plan view of the complete wrench; Fig. 4, an elevation or side View of the axial bolt; Fig. 5, a fragmentary view of the upper side of the lever, showing the finger-lever; Fig. 6, an elevation view of the socket-head; Fig. 7, a fragmentary top plan view of the lever-head, and Fig 8 a front elevation of the lever-head.

Similar letters of reference in the several figures of the drawings designate similar parts.

In construction we provide a circular socket-head A, in the smaller end rof which} is a nut-socket a, which may be formed suitably either for engaging a hexagonal nut or fora square nut. The wall of the socket has a conical periphery 8, extending somewhat over half the length of the head, the balance being cylindrical, and the opposite end has a plane surface (1. Extending from the socket C6 is a smaller socket I), designed to receive the bolt end which may project through a nut. A circular journal-aperture 0 extends from the socket b to the face d. In the cylindrical periphery t is an annular guide groove D, and between this and the upper end is an annular groove 9, in which is a se ries of sockets E, disposed radially from the center of the head, the groove 6 being designed to afford a smooth protected surface which shall notbe liable to become battered by contact with other tools or hard sub: stances, as wrenches are exposed to in practice, and being protected by the periphery t the orifices of the sockets E are prevented from becoming defaced at the edges.

The axial bolt F has a head on operating against the bottom of the socket b, and adjacent to the head is a journal portion at, which is fitted revolubly in the aperture 0, a smaller portion 9 having screw-threads q, to which is fitted a suitable screw-nut G, preferablyhaving an extended cap serving as a handle for guiding the Wrench. A shoulder 1) provides a bearing against which the nut may draw without binding the sockethead against the bolt-head m.

The lever H includes a part f, continuing at a right angle to the main part of the lever, and a continuing part 71., thus offset and in a line parallel to the main part, which together form the lever-head. The part It has a bolthole N, which receives the part 13 of the bolt F, the shoulder 1; bearing against the under surface at of the part it, the surfaces at and a sliding against each other as the bolt rotates in the head A. The part f forms a housing in which is a guideway 0, preferably circular, havipg a sliding latchabolt J fitted therein and in register with the sockets E, which the end of the bolt is adapted to enter. Below the bolt J is a tongue I, engaging the groove D, providing bearings whereby the lever-head is reinforced,and thereby obviating the necessity of employing disproportionately-heavy and more expensive parts. The free end of the lever H has a finger-lever K, having ears Z connected thereto by a pintle 'i, and is normally held off by a spring M, secured to the lever by a rivet 7a. A rod L is connected at one end to the lever K bya pintlej and at its opposite end is connected to the bolt J by a pintle w, so that the bolt may be forced into the sockets E by the spring M and may be withdrawn by pressing the finger-lever toward the main-lever handle.

It is pointed out that all parts may either be rough-forged or cast from steel and be litted together with very little labor, such as dressing down rough edges, and therefore may be produced inexpensively, as is desirable in wrenches of this type, and the attainment of these advantages is of great value.

The practical use of this invention will be understood from the foregoing description in detail; but it may be mentioned that in applying the socket-head to a nut one hand may grasp the nut G, while the lever H is held in the other hand, so that the socket may be quickly fitted to the nut, and by allowing the bolt J to remain in a socket E the nut may be worked to and fro,as with an ordinary wrench, and by manipulating the finger-lever K the wrench may be used as a ratchet-wrench, instantly reversing it, as may be desired.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

1. A wrench provided with a socket-head having an annular groove in the periphery thereof and sockets in the bottom of the groove, a lever pivoted to the'socket-head, and a bolt mounted in the head and registering with the sockets.

2. A wrench including a socket-head having an annular groove in the periphery thereof having sockets therein, a main lever pivoted to the socket-head and having a latch-bolt slidingly mounted therein in register with the sockets, a finger-lever pivoted to the main lever, and a rod connected to the finger-lever and also to the latch-bolt.

3. A wrench including a socket-head having anannular groove and sockets therein, a

main lever pivoted to the socket-head and 'havinga latch-bolt slidingly mounted therein in register with the sockets, finger-lever pivoted to the main lever, a rod connected to the finger-lever and also to the latch-bolt, and a tongue and a groove working in connection whereby the lever-head is reinforced.

4. In a wrench, the combination of the socket-head, the lever-head, the lever formed integral with the lever-head, the axial bolt secured in the lever-head and working in the socket-head, the annular groove in the sockethead having the sockets therein, the annular guide-groove in the socket-head, the fingerlever, the finger-lever spring, the latch-bolt, the rod connecting the latch-bolt with the finger-lever, and the tongue attached to the lever-head and engaging the guide-groove, sub stantially as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

FREDERIO (J. HUTT. THOMAS S. STAFFORD. Witnesses:

ANNA OLDHAM, LIBBIE A. McKINsEY.

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