US554994A - Pipe and nut wrench - Google Patents

Description

(No Model.) P. D. DYE 89 W. HOLMES PIPE AND NUT'WRBNGH.

No. 554,994.) Patented Pb. 18; 1896.

I a Z H 2 9 thetmfiw e s, 0

UNirnn STATES PATE T @FFICE.

PERRY. D. DYE AND WILLIAM HOLMES, OF PARKERSBURG, VEST VIRGINIA.

PIPE AND NUT WRENCH.

SPECIFICATION forming part of Letters Patent No. 554,994, dated February 18, 1896.

Application filed October 2 5, l 8 9 5 To 00% whom it may concern.-

Be it known that we, PERRY D. DYE and WILLIAM HoLMEs, citizens of the United States, residing at Parkersburg, in the county of Wood and State of West Virginia, have invented a new and useful Pipe and Nut Wrench, of which the following is a specifi cation.

This invention relates to that class of pipe and nut wrenches in which the movable jaw is adapted to have a quick adjustment and one of the jaws a movable dog or bit to engage positively with the pipe or rod to be turned. Y

The improvement consists of the peculiar manner of mounting the dog or bit whereby it has a combined sliding and tilting movement upon a fulcrum in the bottom of a recess formed in the jaw bearing the said dog.

The improvement also consists in certain details of construction, novel features and combinations of the parts, which hereinafter will be more particularly described, illustrated and claimed.

The objects and advantages of the improvement will become apparent as the nature of the invention is understood, and to this end reference is to be had to the following description and the drawings hereto attached, forming a part of the application, and in the draw- 1ngs-- Figure 1 is a side elevation of a wrench constructed in accordance with this invention, although various changes in the form, proportion, and the minor details of constructionmay be resorted to without departing from the principle or sacrificing any of the advantages thereof. Fig. 2 is a detail View of the movable jaw. Fig. 3 is a detail view of the adj Listing-sleeve. Fig. 4is a transverse section on the line X X of Fig. 1. Fig. 5 is a sectional detail view of the movable j aw, showing the dog or bit in place.

The same reference-numerals denote corresponding and like parts in all the figures of the drawings, and in the latter- 1 indicates the handle-bar, 2 the handle fitted to one end thereof, 3 the movable jaw, 4 the adjusting-sleeve, and 5 the bit or dog, all being combined to operate in the manner well known in the construction of monkey and pipe wrenches.

Serial No. 566,850. (No model.)

The handle-bar 1 is circular in cross-section and of uniform size throughout its length, and is formed on one side with a longitudinal in the movable jaw 3, so as to prevent the latter from turning and to guide it in its movements to and from the fiXed jaw 8 at the outer end of the handle-bar. This rib 6 is formed with segmental teeth 9 of corresponding pitch to the thread 10 of the sleeve 4-, so that upon turning the latter a close and neat adjustment of the jaws can be attained. A groove 11 is formed in the sleeve 4: to correspond with the rib 6, and when brought in register with the said rib the sleeve and the attached jaw can be moved quickly to adapt the distance between the jaws to the article to be gripped, and by turning the sleeve so as to bring the groove 11 out of register with the rib and engage the thread 10 with the teeth 9 the sleeve and the movable jaw will be held firmly in the adjusted position, and to secure a nicety of adjustment the sleeve can be turned in either direction so as to gradually move the jaw 3 toward or away from the jaw 8, as will be readily understood. The reduced or shank portion of the jaw 3 is formed with an annular groove 12, and the contiguous end of the sleeve 4 is provided with a semicircular flange 13 having an inturned lip 14 to enter and snugly fit the annular groove 12, thereby forming an interlocking joint between the movable jaw and its adjusting-sleeve.

It will be understood that the parts 3 and l are fitted together prior to introducing the handle-bar therethrough, said handle -bar serving to hold the parts in working position.

The jaw 3 is formed in its active face with a recess 15, in which is fitted the bit or dog 5, and a rounded projection 16 rises from the bottom of the recess at a point intermediate of its ends and forms a fulcrum for the bit or dog to slide and tilt upon. The cavities upon each side of the projection 16 are deepened at a middle point to provide for the reception of the rounded ends of the bit or dog and to admit of the said bit having a tilting or rocking movement of large amplitude.

The bit or dog 5 is of the best tool-steel highly tempered and is oblong in shape and formed with rounded ends. The exposed side is toothed to obtain a firm grip upon the rib 6 which enters a corresponding groove 7 object placed between the jaws, and a slot 17 extends lengthwise of the bit and receives a pin 18, by means of which the bit is secured within the recess. The inner or lower side of the bit is concaved to obtain a better purchase upon the projection 16. The projection 16 sustains the strain and work imposed upon the dog or bit, thereby relieving the pin 18, whose primary intent is simply to retain the bit or dog within the recess against accidental displacement. By sliding the bit or dog upon the projection 16 the relative position of the teeth is changed so that new teeth can be brought into working position, and, moreover, the distance between the said teeth and the iixed jaw can be varied because of the peculiar shape of the bit, which is slightly wider at one end than at the opposite end. Again, the combined sliding and tilting n1otion facilitates the ratchet-like action of the bit or dog when moving the handle-bar backward and forward, so as to rotate the object operated upon in one direction. The fixed jaw has a recess 19 opposite to the bit or dog 5, forming a seat to receive the rod 01' pipe to be operated upon and also to provide for the reception of the exposed portion of the bit or dog when the jaws are brought together.

Having thus described the invention, what is claimed as new is- 1. In a pipe-wrench, the combination with a jaw having a recess and having a projection extending from the bottom of the recess intermediate of its ends, of a bit or dog held in the recess and adapted to have a combined sliding and tilting movement upon the said In testimony that we claim the foregoing as our own. we have hereto a'ffi Xed our signatures in the presence 01: two witnesses.

PERRY I). DYE. WILLIAM lIOLM E. \Vitnesses:

HARRY J AG ER, J. M. DAvIs.

Images