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 numberUS892408 A
Publication typeGrant
Publication dateJul 7, 1908
Filing dateApr 4, 1908
Priority dateApr 4, 1908
Publication numberUS 892408 A, US 892408A, US-A-892408, US892408 A, US892408A
InventorsZora B Custer
Original AssigneeZora B Custer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 892408 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)





M M w N I.



Specification of Letters Patent.

Patented July 7, 1908.

Application filed April 4, 1908. Serial No. 425,227.

T 0 all whom it may concern:

Be it known that I, Zena B. CUs'rEn, a citizen of the United States, residing at Bradford, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Trenches, of which the following is a s ecification.

My invention re ates to wrenches of the double acting class and has for its object the provision of a wrench employing roller clutches in the place of the ratchet and pawl usually employed and so constructing the wrench that the rollers can be arranged to clutch the wrench stock to rotate it in either direction. This I accomplish by means of a bolt rotatably mounted in the head of the Wrench and having a bi-furcated lower end to engage two pronged clamps to engage the rollers and throw them into position to clamp the stockto turn it in either direction.

My invention will be described in detail hereinafter and illustrated in the accompanying drawings in which- Figure 1 is a view of the exterior of the wrench, Fig. 2, a longitudinal sectional view of the head, Fig. 3, a cross section on the line xw of Fig. 2, Fig. 4, a top plan view of the igezlid, and Fig. 5, a side view of the operating In the drawings similar reference characters indicate corresponding parts in. the several views.

1 indicates the stock of my improved wrench having the nut holding socket 2 in its lower end and its upper end reduced on its two sides as shown at 3 to form a segmental chamber 4 between each side thereof and the cylindrical barrel 5 on the end of handle 6.

The upper end of stock 1 is reduced centrally thereof and formed with screw threads 7 on which is secured the head 8.

9 indicates a bolt loosely mounted in head 8 having a spring 10 thereon and interposed between the inner side of the head and a pin 11 or like device secured to said bolt to normally hold a pin 12 projecting from the lower the head 13 of the bolt in engagement with the top surface of head 8, said head 8 being preferably made with a depression 14 to receive bolt head 13 though this is not essential to a complete and satisfactory operation of my wrenc 1.

15 indicates a pin projecting per surface'of head 8 to engage pin purpose hereinafter stated.

from the up- 11 for the The lower end. of bolt 9 is slotted. as shown at 16 and lits in a socket 17 centrally of the stock.

18 indicates a transverse slot through stock 1 that intercepts socket 17.

The rollers 19, formed with reduced middle portions 20, are seated in chamber 4.

21 indicates the setting fork for rollers 19 seated in transverse slot 18 and having a reduced middle portion 22 to engage slot 16 in bolt 9. The ends of fork 21 are formed with prongs 23 to loosely engage the reduced portions 20.

By this construction it will be understood that the stock 1 may be arranged to turn in either direction by turning bolt 9 so as to throw the rollers 19 to one end or the other of chamber 4. In adjusting the rollers by turning bolt 9 the pins 12 and 15 act as guides to indicate the direction in which the stock will turn, the bolt being adjusted by raising it against the resilience of spring 10 so that pin 12 may pass over pin 15.

Having thus described my invention what I claim is 1. In a wrench, a stock, a barrel carrying the handle rotatably mounted. on said stock, chambers formed between the stock and barrel, roller clutches mounted in said chambers, a bolt adjustably mounted in said stock, and operative connections between said bolt and rollers to set the rollers to clutch the stock and barrel to rotate the stock in either direction.

2. In a wrench, a stock, a barrel carrying the handle rotatably mounted on said stock, the sides of the stock cut away to form chambers between the barrel and stock, roller clutches mounted. in said chambers having reduced middle portions, a transverse slot in the stock opposite said reduced middle portions, a setting fork mounted in said transverse slot and engaging said reduced middle portions of the rollers, and a slotted bolt rotatably mounted in the stock and engaging said setting fork.

3. A wrench comprising a stock, a barrel carrying the handle rotatably mounted on said stock, the sides of the stock cut away and forming chambers between the barrel and stock, the upper portion of the stock threaded, a head secured on the threaded portion, a bolt mounted in said head and having its lower end slotted, the stock formed with a socket to receive the slotted end of the bolt and a transverse slot intercepting said In testimony whereof I hereto afiiX my sig lsgockekt, roller clutches mounted in said chamnature in the presence of two Witnesses.

ers aving reduced ortions, and a settin fork mounted in the transverse slot in th? ZORA OUSTER' 5 stock having prongs at each end to engage Witnesses:

the reduced portions of the rollers and its l/VM. E. BURDIOK, middle portion seated in the slot in the bolt. MINNIE E. JAoKsoN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2583544 *May 19, 1945Jan 29, 1952Snap On Tools CorpReversible ratchet mechanism
US4491043 *Mar 10, 1981Jan 1, 1985Dempsey John DStepless wrench including quick release mechanism
US4553453 *Aug 1, 1984Nov 19, 1985Dempsey John DStepless wrench including quick release mechanism
US4611513 *Nov 19, 1985Sep 16, 1986Young Richard HOpen access stud gripping tool
US5931062 *May 13, 1997Aug 3, 1999Marcovici; MitchEfficient mechanical rectifier
Cooperative ClassificationB25B13/462