US2558897A

US2558897A - Booster socket wrench

Info

Publication number: US2558897A
Application number: US733101A
Authority: US
Inventors: Stuart M Akins
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-03-07
Filing date: 1947-03-07
Publication date: 1951-07-03
Anticipated expiration: 1968-07-03

Description

July 3, 1951 s. M. AKlNs BOOSTER SOCKET WRENCH Fi ledv March 7, 1947 2 Sheets-Sheet 1 www ,rl-175 l July 3, 1951 Filed March 7, 1947 s. M. AKlNs 2,558,897

BOOSTER SOCKET WRENCH 2 Sheets-Sheet 2 l l f l l r i n I www s Patented July 3, 1951 UNITED STATES PATENT OFFICE BOOSTER SOCKET WRENCH Stuart M. Akins, Curundu, Canal Zone Application March 7, 1947, Serial No. 733,101

This invention relates to a wrench but more particularly and speciiically to a socket wrench having associated therewith a gearing which enables great force or pressure to be applied, with ease, for loosening or tightening nuts and bolts.

The primary object of the invention is the provision of an improved wrench'of the socket type.

Another'object of the invention is the provision of a wrench of the type described in whichl a novel and highly efficient gear arrangement is provided through which the tightening and loosening o nuts and bolts is greatly facilitated.

Another and still further object of the invention is the provision of an improved wrench of the character described for operation upon nuts and bolts which are so placed or positioned as to be diicult to reach and operate upon.

Still a further object of the invention is the provision of a wrench of the character described which is simple of construction, comparatively cheapvof manufacture, and highly durable and efficient in operation.

Other objects and novel features of construction and improved results of the invention will appear from the following description when read in the light of the accompanying drawings.

Although reference in the description is made to a socket wrench it is to be reocgnized that a nut or bolt head engaging element other than a socket can be provided without departing from the inventive concept and that specific uses of the invention other than those specifically described can be made but would still follow within the inventive concept.

In the drawings:

Fig. 1 is a view in side elevation of the wrench, a portion of the cover being broken away.

Fig. 2 is a vertical sectional view.

Fig. 3 is a top plan view with the cover in horizontal section.

Fig. 4 is a horizontal sectional view.

Fig. 5 is a detail view of the driving shaft below the pinion.

Fig. 6 is a vertical sectional View through the driving pinion.

Describing the improved wrench in detail with reference to the accompanying drawings, A is a plate or head having an extending handle like portion I. The plate A is provided with an opensided interior chamber D. The top 2 of the plate, adjacent the handle, is provided with a shoulder 3. A cover B extends over the top of the plate and has a depending front end 4 and sides 4a and 4b. Screws 5 secure the cover top to the shoulder 3 of the plate and screws 6 secure the cover to 1 claim. (c1. s1-57)v the front end face of the plate. This construction forms a chamber C at the top of the plate. The side walls of the cover form side closures for the interior chamber D.

A driving pinion E embodies a gear 'I disposed in the chamber C and an upwardly extending circular collar 8 which passes through and is freely rotatable in the cover top. This collar is hollow and at its external end is squared to form a reception socket 9 for the squared socket Ill of a socket wrench F.,

Manipulation of the socket wrench by its handle II will cause rotation of the driving pinion.

A shaft G has an upper end I2 rotatable in the plate top 2 and within the chamber D a squared portion I3 below which is a round bearing portion I4 rotatable in the plate bottom i5. The lower external end of the shaft is squared, as at I 6, and is adapted to t and carry a socket wrench I'I which is detachably secured in place by a spring-actuated ball I8.

The pinion E is secured to the upper end of the shaft G by a screw I9 and immediately below the plate bottom I5 the shaft is provided with resilient keeper ring 20.

A gear 2I is provided and has a square opening in which the square portion of the shaft G is disposed.

A second shaft Hhas at its upper end a gear 22 which is in the chamber C and meshes with the drive pinion gear l. A bearing like portion 23 of this shaft is rotatable in the plate top 2. A second gear 24 of this shaft is in the chamber D and meshes with the gear 2|. A second bearing like portion 25 of the shaft is rotatable in the plate bottom I5. The lower external end 26 of the shaft is provided with a groove 21 having therein a resilient keeper ring 28.

A shackle 29, having an extending chain 30, is detachably received to the handle I by a pin 3 I.

Because of the removable cover F, the readily detachable pinion E, and the readily removable keeper rings 20 and 28 the device can be quickly and easily assembled or disassembled and parts can be conveniently replaced or repaired should this prove necessary.

The purpose of the invention is to provide what might well be called a booster for a socket wrench because the invention in practice permits great force to be easily applied to the socket wrench for heavy work, that is where a strong force must be applied in loosening or tightening lbolts or nuts, and provides this force even where the working space is limited.

In operation, the wrench socket I'I is applied to a nut and the pinion E is rotated by rotation of the operating handle II. This results in turning the plate A which will continue its rotation until its handle I engages a fixed part of the equipment or device being worked on. When this contact occurs the plate rotation stops and the wrench socket is then rotated by the pinion gear 'I through the

gears

22, 24 and 2|. The gear 2| rotates the shaft G which carries the wrench socket I1 and great force can and is applied to this socket without the application of any great effort being applied to the operating handle II.

Should the conditions be such that there is no abutment for the plate handle I then the plate is anchored against rotation by attaching the chain 30 to a convenient xed object.

Attention is directed to the curve or off-set 32 in the plate handle I. The amount of this oi-set will be determined by placing the strain resulting from the wrench socket I'I on a level plane with the handle portion I of the device.

A desirable feature of the device is that the pressure being exerted can be measured by means of a torque wrench handle and a chart figured for the gear ratio. This chart will serve as a guide in the use of the wrench.

This booster will permit the use of a much smaller socket wrench F than would be the case if thepower were applied to the wrench socket I1 directly by the Wrench F.

What I claim is:

A booster socket wrench comprising a handle, a head positioned adjacent one end of Ysaid handle and secured thereto, a first shaft extending transversely through said head and rotatably.v supported therein, one end of said shaft projecting out of said head and being of multisided configuration for attachment of a socket wrench thereto, a pinion positioned adjacent the end remote from said projecting end of said shaft and mounted `for rotation about said shaft as an aXis, a second shaft extending transversely through said head and spaced from said first shaft and rotatably mounted in said head, a first gear mounted on said second shaft for rotation therewith and in meshing engagement with said pinion, ansecond pinion arranged in side by side spaced relation with respect to said rst gear and mounted on said second shaft for rotation therewith, a second gear arranged in side by side spaced relation with respect to said first pinion mounted onv said first shaft for rotation therewith, and in meshing engagement with said second pinion, anda socket positioned exteriorly and transversely of said head and having one end xedly secured to said first pinion and adapted to drivingly engage the squared socket of a socket Wrench. Y

STUART M. AKINS.

REFERENCES CITED The following references are of record inl the file of this patent:

UNITED STATES PATENTS Number Name Date 1,648,134 Kientz Nov. 8, 1927 1,885,605 Kightlinger Nov. 1, 1932 2,302,853 Gordon Nov. 24, 1942 FOREIGN PATENTS Number Country Date 373,436 Germany Apr. 12, 1923 747,887

France Dec. 20, 1932