US1376651A - Drawknife - Google Patents

Description

E. SMITH. Y

DRAWKNIFE. APPLICAIION FILED MAY 17,-1'919. RENEWED SEPT-30| 1920- 41,376,651 Patented May 3,1921.

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PATENT OFFICE.

EMANUEL SMITH, OF WALLACE, IDAHO.

DRAWKNIFE.

Specification of Letters Patent.

Patented May'3, 1921.

Application led May 17, 1919, Serial No. 297,859. Renewed September 30, 1920. Serial No. 413,900.

To all whom t may concern:

Be it known that I, EMANUEL SMITH, a citizen of the United States, residing at Wallace, in the county of Shoshone and State of Idaho, have invented certain new and useful Improvements in Drawknives, of which the following is a specification.

This invention relates to draw knives, and particularly to such as are provided with handles pivotally connected with the shanks of the blade whereby they may be folded substantially into line with the blade for convenience in packing and transportation or for fitting in a tool chest.

The object of the invention is to provide a draw knife having a double edged blade equipped with reversible handles to permit the use of either blade edge, said handles being so constructed and connected with the blade that a pull exerted thereon during the use of the knife will tend to hold the handles perfectly rigid in relation to the blade.

Another object is to so construct and connect the handles that when not in use they may be folded down on opposite sides of the blade and operate as a guard for the cutting edges as well as to adapt the tool to be stored in a comparatively small space.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention. Y

In the accompanying drawings Figure l represents a side elevation of a draw knife constructed in accordance with this invention with the handles shown in full lines in operative position and in dotted lines in infolded inoperative position, arrows being employed to show the direction in which the handles are swung when changing their position.

Fig. 2 is an edge view of the knife, and

Fig. 3 is a transverse section taken on the line 3-3 of Fig. 1.

In the embodiment illustrated, a blade 1 is shown having differently beveled opposed edges so that either one or the other may be used at the willof the operator. Extending from the opposite ends of the blade 1 are two foi-gings or castings 2 and 3 which either may be made integral with the blade or attached thereto. These castings 2 and 3 have formed therein diagonally disposed slots 4 and 5 with extensions 6 and 7 at their opposite ends. These extensions 6 and 7 are arranged parallel with the blade l and extend in directions opposite to each other, the slot 4 being arranged at one side of the casting 2 and slot 5 at the other side of casting 3, the slot extensions forming bearings for pintles 11 of handles 8 and 9 now to be described. These handles 8 and 9 are provided at their' inner ends with furcations l0 which are designed to straddle the castings 2 and 3 and are connected by the pintles l1 which are designed to pass through the slots 4 and 5 as is shown clearly in the drawings. These castings 2 and 3 are provided at their outer ends on opposite edges with shoulders 12 and 13 which form stops for the handles when swung into opposite directions as is shown clearly in Fig. 1. When the knife is to be used as shown in Fig. l, the pintles 11 of the handles will be positioned in the extension 7 of the slot 4 and in the extension 6 of slot 5 with the handles abutting against the shoulders 13 so that when force is exerted inwardly on the handles 8 and 9 the pintles 11 will move outwardly and be engaged with the extreme outer ends of the slot extensions 6 and 7 and the handles thus rigidly connected with the blade.

When it is desired to use the opposed edge of the blade from that shown in Fig. 1, the handles are swung in the direction of the arrows a and 7) through an arc of 180, and during this swinging movement the pintles 11 will pass through the diagonal slots 4 and 5 and the pintle 11 of handle 8 will be engaged with the bearing formed by the slot extension 6 while the pintle 11 of handle 9 will engage the bearing formed by the slot extension When it is desired to fold the handles inward to protect the cutting edges of the blade, the pintles pass through the diagonal slots until they reach the inner ends thereof when they will enter the extensions 6 and 7 of the respective slots and lie in the dotted line position shown in Fig. 1, thereby protecting the edges of the blade'and occupying a minimum amount of space. The handles shown in the drawings do not quite cover the entire length of the blade l and they may be made longer for this purpose if found desirable, or they may be composed of sections telescopically engaged so as to be extended when folded in to protect the blades and retracted when the knife is to be used for cutting.

VFrom the foregoing description, taken in connection with the accompanying rdraw'- ings, the advantages of the construction and of the method of operation Will be readily apparent to those skilled in the art to Which the invention appertains and'ivhile I have described the principle of operation of the invention together with thedevice whiehI now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are Withinthe scope of the claimed invention.

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

1. A knife of the class described comprising a blade, a forged end carried by said blade having a diagonally disposed slot with parallel extensions at its opposite ends eX# tending in the same direction as the length of the blade, a handle, and a pivot extend- Ving through saidliandle and slot'and adapted to entel1 one or the other of said slot eX- tensions.

2. A knife of the class described comprising a blade, a casing, forged ends car- 'ried by said blade, Veach having a slot With a bearing at each end thereof, said slots being diagonally disposed at opposite sides of the casing and the bearings being in the bifurcations at their inner ends with pintles extendingtlirough said furcations, and the slots in said heads, and shoulders formed on f said heads for engagement by said handles to provide for the rigid connection of the handles With the blade When the knife is in use.

In testimony whereof I affix my signature in presence of tivo Witnesses.

EMANUEL SMITH.

Witnesses JEANNETTE BRUNELLE, FRANCES BRUNELLE.

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