US2233184A - Scraper - Google Patents

Description

Patented Feb. 25, 1941 UNITED STATES PATENT OFFICE SCRAPER.

Emil Rufleth, Waterbury, Conn., assignor to The American Brass Company, Waterbury, Conn., a corporation of Connecticut Application December 22, 1938, Serial No. 247,236

8 Claims.

0 proved holder for razor blades for the purposes suggested which will effectively hold either single or double edged .blades.

It is also an object to provide such a holder in which razor blades may be easily, quickly and securely mounted without the use of securing screws, separate clamps, or the like.

Another object is to provide a holder of the character suggested which comprises a one piece construction whereby there are no separate pieces such as screws or the like to become misplaced.

Other objects and advantages will become apparent from a consideration of the following description taken in connection with the accompanying drawing which shows one embodiment of the invention. It is, however, to be understood that the invention is not limited to the details disclosed but includes all such variations and'modifications as fall within the scope of the invention.

In this drawing:

Fig. 1 is a top plan view of the holder with a single edge razor blade in position;,

Fig. 2 is a partial longitudinal section and side elevation, the section being taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a transverse section substantially on line 3-3 of Fig. 2;

Fig. 4 is a bottom plan view of the head portion with a single edge blade in position;

Fig. 5 is a top plan .view of the head portion showing how the single edge blade may be reversed for guarding the edge when not in use;

Fig. 6 is a top plan view of the head portion Without the blade;

Fig. 7 is a bottom plan view of the head portion without the blade;'

Fig. 8 is a top plan view of the head portion showing its use with a double edge blade;

Fig. 9 is a bottom plan View of the head portion with a double edge blade; and

Fig. 10 is a side elevation of the head portion showing how the blade may be inserted or removed. 1

The improved scraper and blade holder comprises a one piece construction of sheet metalof suitable thickness, and with sufficient resiliency to clamp the blade and hold it in position Without the use of binding screws or ing elements.

other. similar secur- It includes a handle I substantially of concavo convex cross section as shown 5 in Fig. 3, and a head portion integral therewith. The handle may be provided with an opening 2 whereby the holder may be suspended from a hook, nail or the like. Th

means for mounting and holding the blade.

e head comprises a It includes a body or central member 3 which has been stamped or lanced fro m the head portion provide a tongue 6 of suffici'e nt length to support the central portion 3 and permit sufficient movement of this member laterally from the plane of the frame of the head for insertion and removal of the blade.

This tongue may be provided with a rib or bead i to give greater strength and stifi- HESS.

The body portion 3 is provided with a transverse groove or depression 8 in its top wall to receive the guard or stiffening member 9 of the single edged razor blade I0,

this groove forming shoulders H and I2 at the opposite sides thereof to engage the opposite edges cooperate with similar should of the guard 9, and ers l3 and I4 formed by similar grooves or channels IS in the underside of the side members of the frame 4 in holding the blade.

Grooves it are in alignment with the channel or groove 8. The blade is inserted by pressing with the thumb or finger on the top of thecentral body member 3 and pressing it laterally out of the plane of the frame member 4 as indicated in Fig. 10, andthen the blade may be inserted from the free edge opposite to the handle, as indicated in full dotted line position With th ment with the grooves or Then when pressure on the released it will spring back lines Fig. 10, to the e guard 9 in alignchannels 8 and I3. central portion 3 is toward the plane of the frame member 4 due to the resilient action of the metal, and will securely and firmly clamp the blade between the central or body portion 3 and the frame portion 4', as shown in Figs. 1 to 4-,

with the guard 9 lying. in th and held against movement e channels 8 and [5 in a direction longitudinally of the handle by the shoulders II and I2 and I3 and hi, the blade portion Ill proper being clamped against the underside: of the end bar [6 of the frame by the e central member 3.

nd portion. I l of the tion of use.

The body or central portion 3 is also lanced as shown at 18 to provide a tongue or thumb piece l9 offset upwardly from the plane of the body portion 3 and with its forward free edge 29 5 in position to engage the back edge of the guard 9 of the blade. This is to provide a solid back stop to prevent unusual longitudinal pressure on the free edge 2| of the blade pushing the blade or cutting edge 2| inwardly and inserted under the free edge of the thumb piece [9 where it is effectively guarded and protected, and also where the user cannot cut himself on the blade.

In this position the guard 9 of the'blade is at 20 the forward edge of the frame.

To hold the blade against lateral or transverse movement in the'head the edges of the frame portion 4 are provided with downwardly extending lugs 22 and 23 which are in alignment 25 with the end edges of the blade or guard 9 and cooperate with these end edges to hold the blade against lateral movement in the head. They cooperate With the shoulders of the channels 8 and I5 and the end of the thumb piece [9 to effec- -tively and securely hold the blade in position.

Figs. 1 and 5 show the holder used for a single edge razor blade. Figs. 8 and 9 show it used for similarly holding a double edge razor blade 24. It will be seen from these figures that one edge 3515 of this blade lies under the thumb piece I9 where it is effectively guarded and also held, while the other free edge 26 is exposed at the free edge of the head for use. Double edge blades usually have a central portion 21 projecting be- .yond the ends 28 at the opposite ends of the cutting edge portions. It will be seen from Fig. 9 that'these extensions extend between the lugs 22 I and 23 and therefore are held by these lugs to prevent movement of the blade in a direction 5 ,longitudinally of the handle. Also, these lugs 22 and 23 are in alignment; with the end portions 28 of the blade and cooperate therewith to prevent the blade moving laterally in the head, thus effectively holding the double edge blade in the holder. If desired additional lugs 29 may be provided on the edges of the frame portion between the lugs 22 and 23 and extending downwardly in line with the free edges of the extensions 21 to provide additional stop and holding .means, but these may be dispensed with as the lugs 22 and 23 hold the blade very effectively.

With this construction it will be seen that either a single or double edge blade may be easily and quickly mounted in the handle, and either .one is effectively held therein without the use of any binding screws, bolts or separate clamping members which are liable to become loose-or lost. Also, the blade may be removed from the holder by a single hand operation, because all that is snecessary. is to depress the central or body portion 3 and tip the device to permit the blade to I drop out. Downward pressure on the free edge of the blade in use presses it against the under side of the end bar [6 of the frame which pro- -vides a very strong support and backing for the blade.

Having thus set forth the nature of my invention, what I claim is:

1. In a scraper, a blade holder comprising a 7 "handle and a head at one end of the handle, said them.

7. In a scraper, a holder comprising a handle.

head comprising a body and an open frame extending about the body at the outer edges thereof, said body being movable laterally out of the plane of the frame to permit insertion of arazor blade between them and adapted to clamp said blade against the frame, said body and frame having aligned channels to receive the .reenforcing bar of a single edge blade, and lugs on the frame in alignment with the ends of the blade to hold the blade against lateral movement relative to the head.

2. In a scraper, a blade holder comprising a single piece of spring metal including a handle,

a head at one end of the handle cut to form a central body portion and a frame about said body portion in substantially the plane thereof adapted to support a blade between them extending transversely of the handle and with an edge exposed at the edge of the frame opposite to the handle, and said body having a portion exposed at one side thereof for engagement by a finger of a hand holding the handle to press the body laterally to permit insertion or removal of a blade.

3. In ascraper, a blade holder comprising a handle and a transversely extending head at one end of thehandle, saidhead comprising an open frame extending about the outer edges of a body mounted by a resilient tongue like portion extending in a direction longitudinally of the handle, andmeans on the body to cooperate with a blade to retain the blade with its edge exposed at the opposite edge of the frame from the handle and against the under side of the frame between the body and frame so that pressure on the under side of the blade in use will press it more tightly against the frame.

4. In a scrap-er, a blade holder comprising a handle and a head at one end of the handle, said head comprising a central body and an open frame about the body in substantially the plane thereof, said body being mounted by a resilient support so that it is movable laterally out of the plane of the frame and is adapted to clamp a, blade between the body and the frame, and said body having a portion exposed on the opposite side of theframe from the blade so that the body can be moved laterally away from the frame by a pressure on said portion to permit insertion.

5. In a scraper, a holder comprising a single and removal of the blade.

the body laterally from one side of the frame by pressure on the opposite side of the body to permit of the ready insertion and removal of said blade. 7 3

v6. In a scraper, a holder comprising a handle and a head at one end of the handle, said head comprising a central body portion and an open frame about said body in substantially the plane;

thereof, said body being mountedby a resilient support so as to be movable laterally out of the plane of the frame for' insertion and removal of a razor blade and to clamp the blade between the body and frame, and saidbody and frame having lugs and shoulders arranged to'retain;

either a single or double edge bladei between and a head at one endof the handle, said :head

about said body, said body being mounted by a resilient support so as to be movable laterally out of the plane of the frame for insertion and removal of a razor blade and to clamp the blade between the body and frame, said body and frame having aligned channels to receive the reenforcing member of a single edge blade, and a thumb piece struck up from the body and having a free edge to engage the edge of said member to form a backing up stop for the blade.

8. In a scraper, a blade holder comprising a handle and a head at one end of the handle,

said head comprising central body and an open frame about the body in substantially the same plane, said body being mounted by a resilient support so that it is movable laterally out of the plane of the frame and is adapted to clamp a blade between the body and the frame, and said frame having downwardly extending lugs at the outer edges thereof to engage the ends of the blade to hold it in position between the frame and body.

EMIL RUFLETH.

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