US1261092A - Wrench. - Google Patents

Wrench. Download PDF

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Publication number
US1261092A
US1261092A US1914845940A US1261092A US 1261092 A US1261092 A US 1261092A US 1914845940 A US1914845940 A US 1914845940A US 1261092 A US1261092 A US 1261092A
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US
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Grant
Patent type
Prior art keywords
handle
work
socket
pawl
member
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Fred R Allen
Original Assignee
Fred R Allen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/46Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel

Description

F. R; ALLEN.

WRENCH.

APPLICATION FILED JUNE 18. 1914.

Patnted Apr. 2, 1918.

q/vi/bnemo MMWMM Mowm;

TNT Fl ltlhl.

FRED n. ALLEN, or rnovrnnivcn, nrronn ISLAND.

- WRENCH.

I Specification of Letters Patent. Patqgnted A1 1 2, 1918,

To all whom it may concern:

Be it known that I, FRED R. ALLEN, citizen of the United States,,and resident of the city of Providence, in the county of Providence and State of'Rhode Island, have invented certain new and useful Improvements in lVrenches, of which the following is a specification.

This invention relates to a ratchet wrench and has for its object to provide a wrench of this character having a substantially spherical work engaging member mountedin the socket portion of-the handle to receive universal movement therein, said member having teeth on its curved surface engaged by a spring pressed pawl carried by the handle whereby a reciprocating movement of the handle causes a rotary motion of said member, the spherical member beingprovided with work. engaging means, and also with means for limiting the angularmovement of the handle relative tothe axis of its work engaging, socket. i q i With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully point ed out in the appended claim. l l V In the accompanying drawings:

Figure 1- is a sectional view of my improved wrench on line 22 of Fig.2.

Fig. 2- is a side elevation partially in section showing the toothed spherical member mounted in the socket of thehandle and engaged by the spring pressed pawl.

Fig. 3- is a side elevation showing a do tail of the spherical work engaging member.

Fig. 4 is a reduced sized view illustrating the angular movement of the handle relative to the axis of the work engaging socket of the spherical member.

It is found in practice that in many instances such as on automobiles and the like where space is limited it is very advantageous to have a wrench whose handle is capable of being adjusted or set at an angle to the axis of the work engaging portion and therefore, to accomplish this I have provided a wrench with a substantially circular body portion 10 whose center portion is cut out to form a socket 11. One edge of the socket portion is cut away as at 12 and a collar 13 is threaded therein to provide means for readily positioning the substantially spherical work engaging member 14 into said socket. Thecenter portion 15 of the work engaging member is preferably Application filed June 18, 1914. Serial No. 845,940.

formed into a hollow square for the receptlon of the work direct or of a work engaging tool 16, see Flg. l. This work engaging member is preferably formed mto the shape of a ball or sphere, and the same is provided with longitudinal teeth 19 made in a circular form on its outer surface. The body portion of this wrench is provided with an elongated handle 17 in which is mounted a round bodied pawl 18 pressed outward into engagement with the teeth by the spring 20.

In order to limit the angular motion of the work engaging member in its socket relative to the aXis of the handle, so that the sphere will not turn completely around in its socket and close the work receiving aperture therein, I have provided a boss, collar or projection 2122 about each end of the opening through the Work receiving member, which projections are adaptedto bring up on the edges 23 and 24 of the socket and so insure the work receiving opening in the member being always in position to receive the work.

In the construction and operation of my improved wrench the body 10 has an elongated handle 17 so that considerable leverage may be applied to the work and the toothed surfaced spherical member is positioned in the socket in this body and the collar 13 screwed into place to hold the sphere in its socket. I have also found it convenient to drill a hole 25 in the handle and insert therein a round bodied spring pressed pawl 18 adapted to rotate in its socket and to engage the teeth in the work engaging member. These ratchet teeth are also of a circular shape extending a portion of the way around the surface of this sphere to permit the axis of the work engaging recess to be rotated in its socket and be moved to an acute angle relative to the axis of the handle.

It will be seen by this construction that when the sphere is rotated in line with the handle, the pawl slides in the teeth and when at a right angle thereto the pawl rotates in its socket and the combination of these two movements permits the sphere to receive a universal movement the extent of which is only limited by the bringing up of Iiotsdstop collars on the edges of the socket In the operation of ratchet wrenches of the character herein described, there is a tendency for the operator to .rotate the handle upon its axis while moving said handle in an angular position around the work-engaging member. This is because the handle is grasped tightly and the hand of the operator moves in an arc of a circle. Should the pawl cooperating with said work-engaging member be disposed at an angle to the axis of the handle, such angular and rotative movements of the handle cause the pawl to travel in an orbit around the handle as an axis. Under these conditions, the different forces acting upon the pawl and the work-engaging member, have the effect of suddenly forcing the handle from its angular position to a central position, at right angles to the axis of the work-engaging member, and this sudden movement is likely to result in injury to the operator, or to the tool, or to both. Should the pawl be rectangular in cross section and offset as described, there would, in addition to the foregoing action, be a tendency to throw the pawl out of engagement with the work-engaging member, and thereby render the wrench useless. Therefore, in those wrenches which employ offset pawls, care must be taken not to rotate the handle upon its axis, and as a consequence efficiency of the tool, is greatly impaired by reason of the awkwardness in operation and the necessity for the operator to keep these peculiarities in his mind. By placing the pawl in line with the longitudinal median line of the handle and allowing said pawl to rotate freely, as in the present invention, all of the above mentioned disadvantages are overcome, e. the handle (Jopien or this patent may he obtained for may rotated upon its axis while in opera tion without affecting the engagement be tweenthe pawl and the work-engaging member and without any action tending to disturb the angular relation between the handle and the work-engaging member. Thus the operator does not have to bother about holding the handle in any particular position, and can therefore work more conveniently and effectively.

I claim:

A ratchet wrench of the class described comprising a handle having a spherical socket and also an axial bore therein leading from said socket, said bore extending longitudinally of the handle and in alinement with the medial line thereof, a ratchettoothed work operating member of substantially spherical outline mounted in said socketto receive a universal movement therein, each tooth of said member having a plane pawl-engaging surface adapted to substantially aline with the plane passing through the axis of the spherical socket, and a spring pressed pawl rotatably mounted in said bore and having a plane surface. to engage the plane surfaces of the teeth, whereby said member may receive relative universal movement without interfering with the effective action of said pawl.

In testimony whereof I affix my signature in presence of two witnesses.

FRED R. ALLEN.

lVitnesses:

HOWARD E. Barrow, A. F. MAOREADY.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0;

US1261092A 1914-06-18 1914-06-18 Wrench. Expired - Lifetime US1261092A (en)

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US1261092A US1261092A (en) 1914-06-18 1914-06-18 Wrench.

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709386A (en) * 1953-10-01 1955-05-31 New Britain Machine Co Angularly adjustable, reversible ratchet wrench
US2729128A (en) * 1952-11-05 1956-01-03 Clyde L Gilbert Chuck-stock for drill presses and the like
US2800821A (en) * 1953-10-01 1957-07-30 New Britain Machine Co Angularly adjustable, reversible ratchet wrench
US6431031B1 (en) 1999-12-16 2002-08-13 Bobby Hu Reversible ratcheting tool with a smaller head
US6450066B1 (en) 2001-10-19 2002-09-17 Bobby Hu Head of a wrench handle
US6453779B2 (en) 2000-07-21 2002-09-24 Bobby Hu Positioning device for a switch member of a reversible ratchet-type wrench
US6457389B1 (en) 2000-08-22 2002-10-01 Bobby Hu Switching arrangement for a reversible ratchet type wrench
US6457387B1 (en) 2000-01-11 2002-10-01 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US6520051B1 (en) 2001-12-27 2003-02-18 Bobby Hu Head of a wrench handle
US6539825B1 (en) 2001-09-20 2003-04-01 Yen-Wen Lin Single direction ratcheting wrench with stuck prevention and ratcheting direction indication
US6568299B2 (en) 1999-12-16 2003-05-27 Bobby Hu Reversible ratcheting tool with a smaller head
US6644148B2 (en) 2002-02-08 2003-11-11 Bobby Hu Reversible ratchet-type wrench
US6647832B2 (en) 2001-07-27 2003-11-18 Bobby Hu Wrench having two rigid supporting areas for a pawl
US6666112B2 (en) 2000-09-01 2003-12-23 Bobby Hu Switching arrangement for a reversible ratchet type wrench
US6666117B2 (en) 2001-07-13 2003-12-23 Bobby Hu Wrench with a fixed maximum operational torque
US20040055422A1 (en) * 2002-08-05 2004-03-25 Yen-Wen Lin Easy-to-assemble ratcheting tool
US6722234B2 (en) 2001-05-14 2004-04-20 Bobby Hu Easy-to-operate and easy-to-assemble ratcheting-type wrench
US6732614B2 (en) 2001-02-19 2004-05-11 Bobby Hu Easy-to-manufacture and easy-to-assemble ratcheting-type wrench
US20040093995A1 (en) * 2002-07-22 2004-05-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US6745647B2 (en) * 2000-11-29 2004-06-08 Mei-Chen Wang Wrench having a universal-joint ratchet wheel
US6758641B2 (en) 2001-07-13 2004-07-06 Bobby Hu Method for manufacturing a ratchet type ring spanner having a larger cavity for receiving a larger pawl
US20040139823A1 (en) * 2000-02-03 2004-07-22 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US6807882B2 (en) 2001-05-07 2004-10-26 Bobby Hu Wrench with a simplified structure
US6945141B2 (en) 2002-04-22 2005-09-20 Bobby Hu Reversible ratchet type wrench
US6955104B2 (en) 2000-03-13 2005-10-18 Bobby Hu Reversible ratcheting tool with a smaller head
US7017453B2 (en) 2001-10-17 2006-03-28 Bobby Hu Reversible ratchet-type wrench
GB2453008A (en) * 2007-09-18 2009-03-25 Tsai-Ching Chen Wrench
USRE43286E1 (en) 1999-08-03 2012-04-03 Bobby Hu Ratchet 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
US8375830B1 (en) * 2012-04-20 2013-02-19 Yueh-Ying Yang Ratchet wrench
CN103372833A (en) * 2012-04-11 2013-10-30 杨月英 Ratchet wrench
US20160303715A1 (en) * 2015-04-20 2016-10-20 Ping Chung HUANG Wrench structure having swingable ratchet

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729128A (en) * 1952-11-05 1956-01-03 Clyde L Gilbert Chuck-stock for drill presses and the like
US2800821A (en) * 1953-10-01 1957-07-30 New Britain Machine Co Angularly adjustable, reversible ratchet wrench
US2709386A (en) * 1953-10-01 1955-05-31 New Britain Machine Co Angularly adjustable, reversible ratchet wrench
USRE43286E1 (en) 1999-08-03 2012-04-03 Bobby Hu Ratchet 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
US6568299B2 (en) 1999-12-16 2003-05-27 Bobby Hu Reversible ratcheting tool with a smaller head
US6431031B1 (en) 1999-12-16 2002-08-13 Bobby Hu Reversible ratcheting tool with a smaller head
US20040055423A1 (en) * 2000-01-11 2004-03-25 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US6457387B1 (en) 2000-01-11 2002-10-01 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US20040016322A1 (en) * 2000-01-11 2004-01-29 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US7234372B2 (en) 2000-01-11 2007-06-26 Bobby Hu Reversible ratcheting tool with a smaller head and improved driving torque
US7237460B2 (en) 2000-02-03 2007-07-03 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US20040139823A1 (en) * 2000-02-03 2004-07-22 Bobby Hu Biasing arrangement for a pawl of a reversible ratchet-type wrench
US6955104B2 (en) 2000-03-13 2005-10-18 Bobby Hu Reversible ratcheting tool with a smaller head
US6453779B2 (en) 2000-07-21 2002-09-24 Bobby Hu Positioning device for a switch member of a reversible ratchet-type wrench
US6457389B1 (en) 2000-08-22 2002-10-01 Bobby Hu Switching arrangement for a reversible ratchet type wrench
US6666112B2 (en) 2000-09-01 2003-12-23 Bobby Hu Switching arrangement for a reversible ratchet type wrench
US6745647B2 (en) * 2000-11-29 2004-06-08 Mei-Chen Wang Wrench having a universal-joint ratchet wheel
US6732614B2 (en) 2001-02-19 2004-05-11 Bobby Hu Easy-to-manufacture and easy-to-assemble ratcheting-type wrench
US6807882B2 (en) 2001-05-07 2004-10-26 Bobby Hu Wrench with a simplified structure
US6722234B2 (en) 2001-05-14 2004-04-20 Bobby Hu Easy-to-operate and easy-to-assemble ratcheting-type wrench
US6758641B2 (en) 2001-07-13 2004-07-06 Bobby Hu Method for manufacturing a ratchet type ring spanner having a larger cavity for receiving a larger pawl
US6666117B2 (en) 2001-07-13 2003-12-23 Bobby Hu Wrench with a fixed maximum operational torque
US6647832B2 (en) 2001-07-27 2003-11-18 Bobby Hu Wrench having two rigid supporting areas for a pawl
US6539825B1 (en) 2001-09-20 2003-04-01 Yen-Wen Lin Single direction ratcheting wrench with stuck prevention and ratcheting direction indication
US7017453B2 (en) 2001-10-17 2006-03-28 Bobby Hu Reversible ratchet-type wrench
US6450066B1 (en) 2001-10-19 2002-09-17 Bobby Hu Head of a wrench handle
US6520051B1 (en) 2001-12-27 2003-02-18 Bobby Hu Head of a wrench handle
US6644148B2 (en) 2002-02-08 2003-11-11 Bobby Hu Reversible ratchet-type wrench
US6945141B2 (en) 2002-04-22 2005-09-20 Bobby Hu Reversible ratchet type wrench
US6971286B2 (en) 2002-07-22 2005-12-06 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US7032478B2 (en) 2002-07-22 2006-04-25 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20040093995A1 (en) * 2002-07-22 2004-05-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20050229751A1 (en) * 2002-07-22 2005-10-20 Bobby Hu Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
US20040055422A1 (en) * 2002-08-05 2004-03-25 Yen-Wen Lin Easy-to-assemble ratcheting tool
US7178429B2 (en) 2002-08-05 2007-02-20 Yen-Wen Lin Easy-to-assemble ratcheting tool
GB2453008A (en) * 2007-09-18 2009-03-25 Tsai-Ching Chen Wrench
GB2453008B (en) * 2007-09-18 2010-08-18 Tsai-Ching Chen Wrench with gear wheels
DE102008021411B4 (en) * 2007-09-18 2012-02-23 Tsai-Ching Chen Wrench with universally movable gears
CN103372833A (en) * 2012-04-11 2013-10-30 杨月英 Ratchet wrench
CN103372833B (en) * 2012-04-11 2015-03-04 杨月英 Ratchet wrench
US8375830B1 (en) * 2012-04-20 2013-02-19 Yueh-Ying Yang Ratchet wrench
US20160303715A1 (en) * 2015-04-20 2016-10-20 Ping Chung HUANG Wrench structure having swingable ratchet

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