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Publication numberUS878657 A
Publication typeGrant
Publication dateFeb 11, 1908
Filing dateJan 2, 1906
Priority dateJan 2, 1906
Publication numberUS 878657 A, US 878657A, US-A-878657, US878657 A, US878657A
InventorsArthur Munch
Original AssigneeArthur Munch
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ratchet-wrench.
US 878657 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED FEB.11, 1908. A. MUNCH. RATE/'HET WRENCH.

ARTI-TUR MUNCH, OF ST. PAUL, MINNESOTA. j

RATCHET-WBENCI-I.

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.

I claim:-

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.

ARTHUR MUNCH.

' Witnesses:

H. S. JOHNSON,

EMILY F. OTIs.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2701977 *May 7, 1953Feb 15, 1955Wright Tool And Forge CompanyReversible ratchet wrench
US4777852 *Oct 2, 1986Oct 18, 1988Snap-On Tools CorporationRatcheting screwdriver
US4974475 *Jul 19, 1989Dec 4, 1990Skil CorporationCordless powered ratchet wrench
US5570616 *Oct 20, 1995Nov 5, 1996Snap-On Technologies, Inc.Ratcheting screwdriver with reversing cap having projecting pin
US5613585 *May 2, 1995Mar 25, 1997Beere Precision Medical Instruments, Inc.Ratcheting screwdriver
US6370988Aug 6, 1996Apr 16, 2002Snap-On Technologies, Inc.Ratcheting screwdriver with reversing cap having projecting pin
US6918323Nov 1, 2002Jul 19, 2005Easco Hand Tools Inc.Reversible ratcheting tool with improved pawl
US6945141Apr 22, 2002Sep 20, 2005Bobby HuReversible ratchet type wrench
US6955104Jul 1, 2002Oct 18, 2005Bobby HuReversible ratcheting tool with a smaller head
US6971286Jul 22, 2003Dec 6, 2005Bobby HuRatcheting wrench with quick tightening/loosening functions and fine adjusting functions
US7017453Sep 3, 2002Mar 28, 2006Bobby HuReversible ratchet-type wrench
US7032478Jul 6, 2005Apr 25, 2006Bobby HuRatcheting wrench with quick tightening/loosening functions and fine adjusting functions
US7131353Feb 17, 2005Nov 7, 2006Easco Hand Tools, Inc.Reversible ratcheting tool with improved pawl
US7178429Dec 12, 2002Feb 20, 2007Yen-Wen LinEasy-to-assemble ratcheting tool
US7185566Feb 14, 2006Mar 6, 2007Easco Hand Tools, Inc.Reversible ratcheting tool with improved pawl
US7234372Aug 15, 2002Jun 26, 2007Bobby HuReversible ratcheting tool with a smaller head and improved driving torque
US7237460Aug 29, 2001Jul 3, 2007Bobby HuBiasing arrangement for a pawl of a reversible ratchet-type wrench
US7647852Nov 10, 2008Jan 19, 2010Rinner James HRatchet screwdriver and connection arrangement
US7942253 *May 23, 2006May 17, 2011K2M, Inc.Thumb-actuated handle device
US20020023520 *Aug 29, 2001Feb 28, 2002Bobby HuBiasing arrangement for a pawl of a reversible ratchet-type wrench
US20040083860 *Nov 1, 2002May 6, 2004Arnold Robert L.Reversible ratcheting tool with improved pawl
US20040093995 *Jul 22, 2003May 20, 2004Bobby HuRatcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20040139823 *Jan 5, 2004Jul 22, 2004Bobby HuBiasing arrangement for a pawl of a reversible ratchet-type wrench
USRE43286Nov 21, 2002Apr 3, 2012Bobby HuRatchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth ratcheting tools with such ratchet wheel and combination of such ratchet wheel and a pawl
Classifications
Cooperative ClassificationB25B13/462