US775185A - Wrench. - Google Patents

Description

1 No. 775,185. PATENTED NOV. 15, 1904. D. E. LOMBARD. 1 WRENCH. i

APPLIOATION FILED FH12, 1904. l

No MODEL. 2 sums-SHEET 1. 1

No. 775,185. PATBNTBD NOV. 15, 1904. D. E. LOMBARD.

WRENCH.

APPLICATION FILED fm2, 1904.

No MODEL. zsHEBTs-smm 2,

c\ MC1? Ef GZF G G m G3 mi ma v d I G2 Stmllloz 6 170mg d.

ya" MLA/94%# @trouw Patented November 15, 1904.

DANIEL EVERETT LOMBARD, OF FALL RIVER, MASSACHUSETTS.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 775,185, dated November 15, 1904. Application filed February 2, 1904:. Serial No. 191,688. No model.)

T all 'wil/0m, 111i may concern:

Be it known that I, DANIEL EVERETT LOM- BARD, a citizen of the United States, residing at Fall River, in the county of Bristol and State ot' Massachusetts, have invented a new and useful Improvement in lVrenches, of which the Jfollowing is a specification.

This invention relates generally to nutwrenches, and more particularly to certain iniprovements in the nut-wrench shown and described in my application for patent, Serial No. 172,986, tiled September 12, 1903.

The object of the present invention is to provide for the quick and easy manipulation o't' the sliding jaw; and with this object in view i the invention consists in the novel features ot' construction hereinafter fully described, and pointed out in the claims.

In the drawing's forming' part oi' this specilication, Figure 1 is a perspective view of a nut-wrench constructed in accordance with my invention, the shank and the handle being integ'ral. Fig'. 2 is a similar view, the shank and handle being' detachable. Fig. 3 is a vertical sectional view of the sliding' jaw and the sleeve, the shank and operating-levers being' shown in elevation. Fig. -1 is a longitudinal sectional view on the line 4 et of Fig. 5. Fig'. 5 is a transverse sectional view on the line 5 5 of Fig. et. Fig'. 6 is a detail perspective view of the sliding jaw and sleeve detached from the shank. Fig'. 7 is an inverted perspective viewot' one of the ratchet-faced locking-plates. Fig'. 8 is a detail view of the lever for operating the sliding' jaw. Fig'. 9 shows the g'uide-piece carried by the sliding' jaw. Fig. is a detail perspective View of the lever for operating' the ratchet-faced locking-plates.

The principles of my invention are applicable to both larg'e and small wrenches, and in Fig'. 1 I have shown my invention applied to a small-sized wrench, while in Fig. 2 l have shown the invention applied to a large-sized wrench, the main difference being' that in the small wrench a single groove is made in the side of the shank and a single locking-plate carried at each side of the sleeve, whereas in the large-sized wrenches two longitudinal grooves are produced in each side of the shank and two separate locking-plates are carried at each side ot' the sleeve. In other respects, however, the large and small sized wrenches are identical in details of construction, the only difference being in the size of the parts.

Referring now to the drawings, A indicates the fixed jaw, which is rigid with the shank B, said shank carrying' at its rear end the handle B. Sliding' upon the shank B, which is rectangular in cross-section, is the sliding' jaw C and integral sleeveD. The shank B is provided with parallel grooves B2 in the opposite sides thereof, and the face of the shank upon opposite sides of these grooves is serrated or provided with ratchet-teeth B, and it will be noted by reference to Figs. 2 and 3 that the teeth upon the opposite sides ot' one of the grooves alternate with the teeth upon the opposite sides ot' the other groove, the purpose of which will appear hereinafter. Openings D are produced in the opposite sides ot' the sleeve D, and ratchet-faced locking-plates E are arranged in said openings, there being' one plate in the opening' in the construction shown in Fig'. 1 and two plates in the construction shown in Figs. 2, 1, and 5. Each plate is g'rooved longitudinally, as shown at E', the serrations or ratchet-teeth being' arranged upon opposite sides o't' said groove. These serrated or ratchet-'faced plates are adapted to engage the serrated or ratchet-faced shank, and in order to hold the said plates in the opening's and in engagement with the shank I employ springs F, which are rigidly connected at their rear ends to the exterior of the sleeve D and bearing at their free ends upon the outer face of the plates E. The ratchet-faced lockingplates engaging' the ratchet-faced sides of the shank serve to lock the sliding' jaw upon the shank, and inasmuch as the teeth B3 upon the opposite sides of the upper and lower grooves B2 are arranged alternately it is obvious that a very line adjustment can be had. The teeth are so constructed that the sliding' jaw C can be pushed along' the shank toward the fixed jaw A; but the engagement of the ratchetteeth will prevent any backward movement. In order to diseng'age the ratchet-plates from the shank, I employ the lever-rods G, there being' one rod for each plate.

This lever-rod IOO is formed with a fulcrum G and at one end is turned upwardly, as shown at G2, and at the opposite end it is turned upwardly and provided with a knob G3. The fulcrum G bears upon the guide-piece G4, which is secured within the sleeve and is adapted to slide in the longitudinal groove B2. These guidepieces GA1 not only serve as guides for the sleeve, but also serve as abearing-surface for the lever-rod and also retain the lever-rods in their proper position within the sleeve. The end G2 of each lever-rod works in the groove E', produced in the inner face of the lockingplate. If desired, the rear ends of the leverrods upon the same side of the shank may be connected, so that when one knob, G3, is depressed both lever-rods will be operated. The springs F normally hold the ratchet-faced platesin engagement with the shank, and for the purpose of disengaging the said plates so that the sliding jaw can be moved back upon the shank it is only necessary to press downwardly upon the rear ends of the lever-rods and their forward ends will be thrown outwardly, moving the locking-plates away from the shank. For the purpose of forcing the movable jaw firmly against the object to be gripped I employ levers H, having pintles H', which are journaled in recesses HZ, produced in the sides of a longitudinal groove 1, which is produced in both the top and bottom of the sleeve and at the rear end of said groove. rlhe bottom thereof is provided with a series of ratchet-teeth l/. The inner ends of the levers H are adapted to engage a'series of ratchetteeth K, produced upon the top and bottom sides of the shank, the sleeve having openings K,through which the inner ends of the levers work for the purpose of engaging the ratchetteeth K. Each lever H has a pawl L pivoted thereto, and each pawl eng'ages the ratchetteeth l on its side of the sleeve.

Thus it will be seen that for the purpose of forcing the sliding jaw theleversH are thrown outwardly, and their inner ends engaging the ratchet-teeth K will push the sliding jaw toward the fixed jaw. At the same time the pawls engage the ratchet-teeth l', and, if necessary, the levers H can be adjusted to obtain a fresh grip in order to move the sliding jaw still closer toward the fixed jaw.

Thus it will be seen that l provide not only for locking and unlocking the sliding jaw, but

also provide a novel means for forcibly moving the said slidable jaw toward fixed jaw.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

- l. A wrench comprising a fixed jaw and shank, said shank being grooved longitudinally upon the sides and provided with ratchetteeth upon opposite sides of each groove, a sliding jaw and sleeve, the sleeve having openings in the sides, spring-actuated serrated plates arranged in said openings and the le- 'vers adapted to slide in the grooves in the shank and press the serrated plates outwardly, and the levers pivoted to the sleeve and adapted to engage the ratchet-teeth upon the bottom and top of the shank, as set forth.

2. A wrench comprising a fixed jaw and shank, said shank being grooved longitudinally upon the sides and provided with ratchetteeth upon opposite sides of each groove, the fixed jaw and sleeve, said sleeve having openings in the sides, plates arranged in said openings and provided with ratchet-teeth, the levers for throwing the said platesoutwardly, the guide-pieces for holding' the said levers, springs attached to the sleeve and adapted to hold the plates in engagement with the shank, and the levers pivoted to the sleeve and adapted to engage the ratchet-teeth upon the top and bottom sides of the shank, as set forth.

3. In a wrench the combination with the fixed jaw and shank, of the sliding jaw and sleeve, the shank having ratchet-teeth upon the top and bottom sides thereof, the sleeve having ratchet-teeth upon the top and bottom sides thereof, the levers pivotally connected to the sleeves and adapted to engage the ratchet-teeth of the shank and the pawls pivoted to the levers and adapted to engage the ratchet-teeth of the sleeve, as set forth.

4. In a wrenchA the combination with the fixed jaw and shank, of the movable jaw and sleeve, the shank being grooved longitudinally and provided with ratchet-teeth upon opposite sides of the groove, the sleeve having openings in the sides, the serrated plates arranged in said openings, the springs for holding the plates in contact with the shank, the

levers for throwing' the plates out of contact with the shank and the guide-bars adapted to slide in the grooves in the shank and carrying the levers, as set forth.

DANIEL EVERETT LOMBARD Witnesses:

WILLIAM E. FULLER, Jr.,

ARTHUR S. PHILLIPS.

IOO

Images