US2226794A

US2226794A - Scraping and cutting tool

Info

Publication number: US2226794A
Application number: US245600A
Authority: US
Inventors: Frank B Williams
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-08-24
Filing date: 1938-12-14
Publication date: 1940-12-31
Anticipated expiration: 1957-12-31

Description

Det. 31, 1940. F. B. WILLIAMS 2,226,794

SCRAPING AND CUTTING TOOL Original Filed Aug. 24, 1936 Patented Dec. 31, 1940 UNITED STATES PATENT OFFICE 7 Claims. (Cl. s0

.This application is a division of my co-pending application Serial No. 97,529 filed August 24, 1936.

This invention relates to a scraping and cutting tool adapted to utilize safety razor blades, and which is adjustable to various positions, so that it can be used for a multiple of tasks.

The object of this invention is to provide an improved blade clamping portion which will firmly hold a blade through hard usage, such as when used for scraping purposes.

Another object is to provide an improved blade clamping portion which will firmly hold a blade and which can be adjusted to a number of positions or angles, or to a guarded position, as a single unit.

Another object relates to the method of adjusting and securing the blade clamp in Various positions or angles on the handle portion of the tool.

Another object relates to an improved handle for the tool adapted to form a magazine for holding a reserve supply of blades, so that a cutting edge will be conveniently at hand at all times.

Other objects relate to various features of construction and arrangement of parts which will be apparent from a consideration of the following specification and accompanying drawing, wherein:

Fig. 1 is a rear elevation of my device.

Fig. 2 is a front elevation thereof, showing the blade clamping portion set at various angles.

Fig. 3 is a detail in perspective of one form of spring for retaining reserve blades in the handle magazine.

Fig. 4 is a side view of the device.

Fig. 5 is a longitudinal section through the head of the handle and the blade clamps, showing them spaced from each other for clearness of illustration.

Fig. 6 is a detail in perspective of the blade clamping plates.

Referring to the drawing, [0 indicates the holder handle having a head portion H which may be ofl'set rearwardly as shown. The handle in the preferred. form shown, has a flange extending at right angles to form the side walls I 2 terminating in inwardly extending longitudinal flanges [3 to provide a magazine where extra blades may be kept as M. A spring l5, preferably in the form shown, seats under the flanges l3 and holds the extra blades in place, regardless of their number. However, other forms of springs may be used, as for example, a strip spring riveted to the handle which would keep the blades pressed upwardly against the flanges. Also, as blades of the type the unwalled head portion of the handle.

The blade clamps consist of the plate I! which has the projections I8 struck up from it, and the aperture l9. Blades now in general use have apertures adapted to receive the projections I8 which are so positioned that the blade edge will project slightly beyond the edge of the plate. A complementary plate 20 of the same general configuration as plate I! has apertures 2| adapted to receive the projections l8 and hold the blade between the plates. onal portion 22 struck up from it which has a threaded recess in register with recess I9. A screw 24 extends through the recesses l9 and 23 and holds the plates together as a unit with the blade 2-5 clamped between them, as shown in Fig. 5. The blades are provided with

studs

26 and 21 extending between them at their rounded portions opposite the blade clamping edge, so that they are not allowed'to meet at that portion. These studs in addition to compensating for the thickness of the blade being clamped, act as a wedge to force the clamp plates together at the blade clamping edges to more securely grip the blade.

Struck up from the holder head I l is the hexagonal seat 28 having a recess 29, adapted to receive the raised hexagon 22, and the screw 24. A thumb nut 30 engages the screw 24, and after the hexagon is set in any one of six positions in seat 28, the thumb nut is turned down to hold the blade clamps in the desired position or angle. Fig. 2 illustrates the blade set in three positions, or it may be set so that the blade is entirely guarded by turning the clamp to the position opposite that shown in Fig. 1.

While I have shown a raised portion in the form of a hexagon fitting into a complementary seat, believing it will furnish a sufficient range of positions, other forms may be used, as for example an octagon, and I therefore do not wish to be restricted to this detail. It will also be apparent to one skilled in the art that various details may be rearranged and changes made without departing from the spirit of this invention, and I do not therefore wish to be restricted thereto except as so limited by the following claims.

I claim as my invention:

1. In a razor blade holder having a blade magazine formed on the handle thereof, the said blade magazine comprising, an elongated chamber The plate [8 has a hexagportion at one end of said handle defined by unitary end and side walls extending from said handle and flanges extending inwardly from said walls and parallel with said handle and terminating intermediate the length thereof, and a spring adapted to yieldably retain blades in said chamber, the said flanges being formed to present a longitudinal opening in said chamber and adapted to receive a finger whereby blades may be slidably withdrawn therefrom in a plane substantially parallel to the said handle.

2. In an article of the class described having an elongated handle portion comprising a chamber adapted to yieldably retain conventional razor blades, the said chamber comprising retaining walls extending from said handle adjacent the outer end and terminating intermediate the length thereof, opposed flanges extending inwardly from said walls and parallel to said handle, the said flanges terminating a sufiicient distance from each other to permit entrance of a finger between them, and spring means in said chamber adapted to yieldably retain razor blades between said handle and the said flanges in planar relationship therewith, and-to permit the said blades to be withdrawn therefrom by manual longitudinal movement.

3. In an article of the class described having an elongated handle portion of single thickness and substantially of the width of a conventional razor blade, a blade magazine comprising side walls extending from said handle adjacent its outer end on at least the opposed lateral edges thereof, flanges extending inwardly from said side walls to define a slotted chamber therewith, the said slot being of sufficient width to admit entrance of a finger, and spring means in said chamber adapted to retain elongated blades in parallel relationship to said handle within said chamber. I

4. In an article of the class described having an elongated handle portion of single thickness and substantially of the width of a conventional razor blade, a blade magazine comprising side walls extending from said handle adjacent its outer end on at least the opposed edges thereof, flanges extending inwardly from said side walls to define a slotted chamber therewith, the said slot being of sufficient width to admit entrance of a finger, and spring means in said chamber adapted to yieldably retain reserve blades between said handle thickness and said flanges.

5. In an article of the class described having an elongated handle portion of single thickness and substantially of the width of a conventional razor blade, a blade magazine comprising side walls extending from said handle adjacent its outer end on at least the opposed edges thereof,

flanges extending inwardly from said side walls to define a slotted chamber therewith, the said slot being of sufiicient width to admit entrance of a finger, a recess extending longitudinally of said handle adjacent the slot defined by said flanges, and spring means in said chamber adapted to yieldably retain razor blades between said handle thickness and said flanges.

6. In an article of the class described having an elongated handle portion of single thickness and substantially of the width of a conventional razor blade, a blade magazine comprising side walls extending from said handle adjacent its outer end on at least the opposed edgesthereof, flanges extending inwardly from said side walls to define a slotted chamber therewith, the said slot being of sufl'icient width to admit entrance of a finger, and spring means in said chamber adapted to yieldable retain reserve blades between said handle thickness and said flanges, the said spring means comprising a substantially U-shaped element having bowed leg portions, and being normally lodged in said chamber between said handle portion and said flanges.

'7. In an article of the class described having an elongated handle portion of single thickness and substantially of the width of aconventional razor blade, a blade magazine comprising side walls extending from said handle adjacent its outer end on at least the opposed edges thereof, flanges extending inwardly from said sidewalls to define a slotted chamber therewith, the said slot being of suflicient width to admit entrance of a finger, and spring means extending from said handle within and longitudinally of said chamber adapted to keep blades pressed upwardly against said flanges while confined between said side walls, and between the handle thickness and said flanges.

FRANK B. WILLIAMS.