US651574A - Wrench. - Google Patents

Description

No. 65L574; Patented lune l2, I900.

J. E. MEREDITH.

WRENCH.

\Application filed Nov. 7, 1 898.)

(No Model.) 2 Sheets-Sheet l.

2 v F lcl m: uonms PETERS co, Primuumu, wlsnmm'ou. 11c

No. 651,574. I Patented lune l2, I900.

J. E. MEREDITH.

WRENCH.

iApplication filed Nov. 7, 1898.)

(No Model.) 2 Sheets-Sheet 2.

WITNESSES flvnzwram Maw UNrrEn STATES a'rnu r union.

JOHN EDWARD MEREDITH, OF BIRMINGHAM, ENGLAND.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 651 ,574, dated June 12, 1900.

Application filed November 7, 1898. Serial No. 695,702. (No model.) I

To all 11/71/0122, fl; HM/[ con/corn:

Be it known that I, J OHN EDWARD MERE- DITH, a subject of Her Majesty the Queen of Great Britain and Ireland, residing at Birmingham, in the county of l/Varwick, England, have invented certain new and useful Improvements in Adjustable Spanners, of which the following is a specification.

This invention consists of the herein-described improvementsin adjustable s panners, and is carried out as I will describe by referring to the accompanying drawings, in which- Figure 1 is a general view of an adjustable spanner constructed in accordance with this invention. Fig. 2 shows a double-ended spanner constructed in accordance with this invention. Fig. 3 shows how the said doubleended spanner will fold when not in use. Fig. 4 shows the sheet-metal blank from which the loop part of the said spanner is formed. Fig. 5 shows a modification of the loop part of the said spanner. Fig. 6 represents a modified form of my invention. Fig. 7 shows a pin for use with the same, and Fig. 8 represents the same spanner as Fig. 6 open, ready to embrace a nut on a shaft, stay-bar, or the like.

The same letters of reference indicate the same parts in all the figures.

I will first describe the arrangement of my invention shown by Figs. 1 and 4.

In carrying out my invention I provide a flat section-lever A, near one end of which is jointed, as by the cross-pin B, a metal loop 0, preferably formed of a sheet-metal blank such as represented by Fig. 4, which is folded centrally at the dotted lines o 0', thus forming a loop 0 of two thicknesses of metal, which embrace between them the end of the flat sect-ion-leverA. The loop 0 and the lever A are, as aforesaid, jointed together by the cross rivet or pin B, so that the loop can turn about the pin B in a plane parallel with the face of the lever A. The interior shape of the loop 0 is hexagonal at c or is a hole with two of its sides 0 0 making an angle of sixty degrees, so as to suit hexagonal nuts. The end of the lever A near which the loop part O is jointed is enlarged and made of a curved shape, the distance of which from the pin B gradually increases from a to CF, so that when the loop part 0 is turned toward the part a of the curve the lever doesnot protrude at all, or but very little, across the opening 0 in the loop C, and thus the said opening will take a large nut, which will be pressed against the two inclined sides 0 c of the interior of the loop by the curved parts a a of the lever acting against the nut D like a cam when the lever is turned in the direction indicated by the arrow in Fig. 1 to turn the nut, thus securely holding the nut D between the two inclined sides 0 o of the loop and the curved end of the lever A. When the loop part 0 is placed on a smaller nut and the lever A is turned in the direction indicated by the arrow-in Fig. 1 to turn the nut, the curved end a (t of the lever protrudes farther across the opening 0 of the loop 0, thus diminishingthe said opening and pressing the nut against the two inclined sides 0 0 as before. Thus the opening in the loop 0 will suit various sizes of hexagonal nuts by merely turning the loop 0 to such a position on the lever A that the curved end of the lever fits against one of the flat sides of the nut and presses the nut against the two inclined sides 0 c of the loop 0.

It will be understood that the part 0 may, if desired, be made as a metal casting or forging, as shown by Fig. 5, instead of being made of a folded sheet-metal blank, as shown in Figs. 1 and 4:.

When myinventiou is applied to a doubleended spanner, as shown, for-instance, by Figs. 2 and 3, the lever A is made curved at both ends, and each end is fitted with one of the saidlooped parts, which in this case are marked, respectively, 0 C the loop part 0 being of the size to take certain sizes of larger nuts and theloop part (3 being made of the proper size to take the various sizesof smaller nuts. The loop part 0 is jointed to the spanner by a cross-pin B in the same way that the loop part 0 is jointed to the spannenby the cross-pin B.

When the spanner above described is not in use, the loop part 0 or loop parts'O O can be turned and folded against the body of the lever A, as shown by Fig. 3, so as to embrace the same, and thus occupy but little space.

When my improved spanner isrequired for turning nuts on shafts or stay bars or bolts which are so fixed or placed at both ends that/ the loop 0 or loops 0 C could not beplaeed on the nut owing to the said loop being continuous, I make the'said loopin two parts, as represented, for instance, by Figs. 6 and 8, the two parts being respectively marked D D both of which are jointed by the crosspin B to the lever A and are made to fittogether at their outer ends 61- (1 so that when jointed together, as represented in Fig. 6, the parts D D will together form a loop having the same interior shape as in the spanners here-' inbet'ore described. Thetwo parts D D are secured together by an ordinary pin-such, for instance, as that marked E and shown separately by Fig. 7 and which passes through the holes (i d in the parts D D Thus in using this spanner the cross-pin E can be withdrawnfrom the holes 61 d and the two parts D D of the loop opened away from each other, as represented in'Fig. 8, so that they can rea'dily be embraced around the nut. on

the shaft or the like, and then they can be secured together bythe GIOSSrPlH E and the spanner used to turn the nut, as hereinbefore described in reference to Fig. l.

What I claim as my invention, and desiije to secure by Letters Patent, is-

In combination, the lever andthe loop having its ends pivoted to the lever and having also an opening to receive the nut or other part, the sides of the loop being connected at a point some distance away from one edge of theloop to leave said edge free I so that the sides of the loop can embrace the sides of the lever when the parts are folded.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JOHN EDWARD MEREDITH.

Witnesses:

CHARLES BOSWORTH KETLEY, HERBERT WHITnHoUsE.

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