US 878657 A
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Description (OCR text may contain errors)
PATENTED FEB.11, 1908. A. MUNCH. RATE/'HET WRENCH.
ARTI-TUR MUNCH, OF ST. PAUL, MINNESOTA. j
Specification of Letters Patent,
Patented Feb. 11, 1908.
Application iled January Y2, 1906. Serial No. 294.145.
To all whom Lt 'may concern:
Be it known that I, ARTHUR MUNoH, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Ratchet-Wrenches, of which the following is a specification.
My invention relates to improvements in ratchet tools its object being particularly to provide an improved construction which can be used either as a left or right handed device.
To this end my invention consists in the features of construction and combination hereinafter particularly described and claimed. i A
In the accompanying drawings forming partof this speciiication,Figure 1 is a vertical longitudinal section of my improved device; Fig. 2 is a section on line -'x of Fig. 1;
Fig. 3 is aview of a locking plate forming part of the device 5 Fig. 4 is a side view of a modified construction; Fig. 5 is a section on line y-y of Fig. 4, and Fig. 6 is a longitudinal section of a tool holder designed to be used in connection with the modified construction. In the drawings A represents ahandle piece formed with a transverse opening 2.
B represents jaws having inwardly inclined faces slidable in a transverse opening 3 eX- tending through the handle piece across one side of the main opening 2. The jaws are each provided with a controlling spring 4 interposed between the outer ends of the jaws and the plates 5 closing the ends of the opening 3. `Slidable in an opening 7 parallel with the jaws B is a block 6 carrying a central pin 8 which passes between the jaws B. A friction spring 9 is carried by the block and bears at its outer side against the adjacent wall of the handle piece, as shown in Fig. 2. The pressure of the friction spring against the adjacent wall holds the block in adjusted positions. By sliding the 'block either way one of the jaws B will be carried by the pin 8 to one side allowing the spring 4 of the other jaw to force said jawl into the opening 2 in position to engage with the tool holder 10. To reverse the action of the device the block 6 should be oppositely moved in its opening. The tool holder 10 may be of any suitable construction and held within the opening 2 by means of a locking plate 11-secured to the side of the handle piece and interlocking with the tool holder as shown in Fig. 1.
In the modified construction shown in Figs. 4 and 5 a single piece aw 12 is employed eX- tending entirely through the transverse opening 3 and projecting beyond the ends thereof. The ends of the jaw incline inwardly as shown and are serrated along their inner faces. The jaw carries a centrallysupported rearwardly extending pin 13 between one side of which and the screw 14 in the side of the handle piece is interposed a coil spring 15. A suitable tool holder 16 such as shown in Fig. 6 may be arranged within the opening 2.
In operation the jaw must be pressed to one side by the finger, as illustrated in Fig. 5, to allow the tool holder or stud to be inserted within the opening 2. The spring 15 will then hold the adjacent jaw ortion against the tool holder or stud. n the position shown in Fig. 5 the device is ready to be used left-handed. When it is desired to be used right-handed the jaw will be pressed inward and the tool inserted into the tool-receiving opening from the opposite side.
1'. A device of the class described, consisting of a handle piece formed in one end with a transverse opening, jaw portions slidable across one side of said opening, said jaw portions having inwardly inclined serrated inner faces, and spring means interposed between said jaw portions and said handle piece,'for
the purpose set forth.
2. A device of the class described cornprising in combination a handle piece formed in one end with a transverse opening, a pair of4 inwardly inclined jaws slidably supported in one side of said opening, restraining springs for said jaws, a slidable adjusting block, and means carried by said block engaging with said jaws.
3. A device of the class described comprising a handle piece formed in one end with a transverse opening, a pair of serrated jaws slidably supported in said opening, springs interposed between the outer ends of said jaws and the adjacent walls of the handle piece, a slidable block alongside said jaws, means carried by said block engaging with the inner ends of said jaws, and means for holding said block in adjusted positions.
4. A device of the class described comapin carried by saidblock and projecting 10 prising in combination a handle piece provided in one end with a transverse opening, serrated jaws slidably supported in said opening, spring means interposed between the outer ends of said jaws and the adjacent walls of the handle piece, a block slidably su ho pported alongside said jaws, spring means ding said block in adjusted positions, and
between said jaws, as and for the purpose set forth.
ln testimony whereof I aHiX my signature in presence of two witnesses.
H. S. JOHNSON,
EMILY F. OTIs.