Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1199823 A
Publication typeGrant
Publication dateOct 3, 1916
Filing dateJan 26, 1916
Priority dateJan 26, 1916
Publication numberUS 1199823 A, US 1199823A, US-A-1199823, US1199823 A, US1199823A
InventorsMorgan D Sadtler
Original AssigneeMorgan D Sadtler
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1199823 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)




1,199,823. 1 Patented (m. 3,1916.



Specification of Letters Patent.

Patented Oct. 3, 1916.

Application filed January 26, 1916. Serial No. 74,377.

To all whom it may concern:

Be it known that I, MORGAN D. SADTLER, a citizen of the United States, residing at Baltimore, State of Maryland, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to improvements in wrenches. I

The object-of the invention is to providea wrench which will have great range of usefulness, and one in which it will not benecessary to use the handle or casing for the driving shaft, as a lever to actuate ,the wrench, thereby making the wrench available for applying or removing nuts in difficult or out of the way places in machinery.

I am aware that it is not new to drive nut seaters by gears, but in devices of this character, so far as I know, there is no means provided for preventing the gears from meshing too tightly and especially when the wrench is being operated.

One of the objects therefore, of this invention, is to provide a construction wherein the gears will, at all times, be kept in mesh to the same degree, regardless of the amount of pressure or force applied to them, in applying or removing the nut, thereby preventing wear and longitudinal movement of the gear bearings. v

A further object of the invention is to provide in addition to a wrench adapted for en-'- gagement with the wrench. end or nut engaging member, a member equally well adapted for receivingthe ends of drills, bits, etc which adapts the device to be used as a boring or screw unseating tool.

'A still further object of the invention is to provide in connection with the driving shaft of the wrench, a handle adapted to fit in the end of a shaft, the handle being provided with a plurality of apertures for engagement with the driving shaft,'t o vary the leverage in applying or removing the nut or other object upon which the device is adapted to operate, as the exigencies of the casemay require.

In the drawings, Figure 1 is a perspective view of the wrench with the handle attached tothe driving shaft. Fig. 2 is a longitudinal sectional view of the wrench showing the means for keeping the driving gears in proper mesh or for limiting the longitudinal movement of the gears. Fig. 3 is a perspective view of a nut engaging end of the well known variety in connection with which the wrench is particularly designed for use- Fig. 4 is a detail perspective View of the means for keeping the gears in proper mesh.

Referring to the drawings, the numeral 1 designates the driving shaft casing. This is threaded at one end as indicated at 2 for the reception of a collar 3 internally threaded for the reception of the casing 1. This collar is formed with a boss 4 provided with external threads 5, which engage internal threads 6, on the hollow angle member 7 The numeral 8 designates the driving shaft provided at its outer end with a squared portion 9 adapted to enter one or the other of a series of squared apertures 10 in the operating handle 11. The opposite end of the shaft has rigidly secured thereto a bevel gear 12 at the rear of whose teeth is arranged a short flange 13 which forms a part of the boss 14 of the gear 12, so that-when the parts are assembled, as shown in Fig. 2, the boss will fit snugly within the collar 3,

with the flange against the inner edge of said collar, thus preventing outward movement of the gear. In mesh with the gear 12- is another bevel gear 15, carried by the inner end of a stub shaft 16, which extends through and has bearing in a collar 17, the reduced portion of which is threaded as indicated at 18 for engagement with the internal threads 19 in the other end of the angle member, thus supporting the gears and connected parts at right angles to each other. The outer endf the stub shaft 16 is squared as indicated at 20, to adapt it for entry into the squared opening 21, in the nut engaging end 22, which as before stated, may be of any of the Well known or approved forms, and adapted for engagement either with squared or polygonal nuts, it being understood that in these nut engaging members, the socket is of standard size, regardless of the size ofthe nut for which the nut receiving aperture is adapted. The squared 24 designates a spider, prefthe angle member 7,

26 engages the gear 15, arly. thus keeping the gears in proper and uniform mesh at all times, resisting any tendency of the gears to climb or wedge under excesive pressure, thereby eliminating wear and producing absolute uniform rotation of the driving member under all conditions. In the 'present instance, four arms ef-the Spider to prevent end-thrust and thus over-meshing thereof.

2. A wrench having means whereby a nut can be seated at an angle to the member receiving it, and means for presenting axial resistance to ost motion or back-lash between the driving and driven members -whereby undue wear or uneven action of the actuating members will be secured irrespectiveof torsional -or tensile strain.

3. A wrench embodying a nut seating member, an actuating member arranged at an angle thereto, and means for presenting axial resistance to lost motion or back-lash between the and driven members whereby the union :between the actuating members will be maintained irrespective of pressure and torsional strain.

4. A wrench comprising a nut seating member provided with a gear, a driving member having-a gear meshing with that of thelfirst named member and means for presenting axial resistance to lost motionor back-lash between the driving" and driven members forrmaintaining' the two gears in predetermined intermesh relation,

' irrespective of conditions of a 5. A wrench comprising a rotatable nut" seating member having a bevel gear thereon, -a driving shaft at right angles to said nut seating member and carrying a bevel gear in mesh with the first mentioned gear, and

means engaging the centers of the gears to keep them in uniform predetermined mesh. 6. A wrench. comprisinga rotatable nut seating member having thereon a bevel gear, a drivlng shaft at an angle to-said member and carrying a gear. in mesh with the first mentioned gear, and a spider arranged within the angle of the gears and contacting with the'centers thereof, whereby the gears are kept in uniform and predetermined 7. A wrench comprising a hollow curved member, a tubular member connected therewith, a nut seating member arranged withm the curved member and provided with a gear, means carried by the latter member for maintaining the nut seating member in position, a shaft arranged in the tubular member and having a gear meshing with that of the nut-seating member, means for centering the two gears relative to each other irrespective of the conditions of use, and means for engagin the shaft whereby to impart rotary motion thereto to drive the nut seating member in either direction.

8. A wrench comprising a tubular shank, and a curved elbow, a shaft mounted within the shank and carrying a bevel gear, a nut actuating member journaled within the elbow and provided with a gear meshing with that on the shaft, and means for maintaining the gears in fixed intermeshed relation irrespective "of strain or pressure. 1

9. A wrenchembodying a tubular shank Q and a curved elbow, a shaft mounted withinthe shank; and carrying a bevel gear,

a nut seating member journaled in the elbow and carrymg a gear meshingwith that on the shaft, means for preventlng tendency of either the-shaft or nut seating member to change their relative axial movements under operation, and means for maintaining the parts in fixed but detachable relation to each other. v v In testimony whereof I afix my signature in presence of two witnesses.

. I MORGAN nsanrnnn.

Witnesses: I

" Louis W. R,

'NK Gr. Mme." rem.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2583266 *Jul 11, 1950Jan 22, 1952Jenson Wilbur CGear-operated crankcase drain plug wrench
US2617455 *Mar 27, 1950Nov 11, 1952Stanley C KutaPortable boring machine
US2694953 *Oct 13, 1953Nov 23, 1954Williams Duane BGear-operated wrench structure
US2845158 *Apr 22, 1952Jul 29, 1958I L HartenbergClutch for hand tool
US4470328 *Feb 24, 1983Sep 11, 1984Kearney-National Inc.Special tool
US4620458 *May 22, 1985Nov 4, 1986Mero-Raumstruktur Gmbh & Co.Apparatus for screwing in set screws, which can be operated by a wrench
US4892017 *Apr 7, 1989Jan 9, 1990Kennedy T WAutomotive fuel system adjustment tool
US5391170 *Oct 2, 1992Feb 21, 1995David A. McGuireAngled surgical screw driver and methods of arthroscopic ligament reconstruction
US5464407 *Nov 16, 1994Nov 7, 1995Mcguire; David A.Flexible surgical screwdriver and methods of arthroscopic ligament reconstruction
US5471898 *Dec 20, 1993Dec 5, 1995Forman; Edward P.Breaker bar with 90 degree rotating socket connector head
US7335207 *Nov 26, 2003Feb 26, 2008Biomet Manufacturing Corp.Minimally invasive cup impactor
US7946197 *Mar 26, 2008May 24, 2011Ontario Power Generation Inc.Breaker racking tool
US8360774 *Aug 22, 2008Jan 29, 2013Angstrom Manufacturing, Inc.Prophy angle
US20080257694 *Mar 26, 2008Oct 23, 2008Ontario Power Generation, Inc.Breaker racking tool
US20080311541 *Aug 22, 2008Dec 18, 2008Angstrom Manufacturing, Inc.Prophy angle
U.S. Classification81/57.29
Cooperative ClassificationB25B17/00