US1514387A - Scrape set - Google Patents

Description

Nov. 4 1924' A. HOCKETT SCRAPE SET Filed Aug. 21 1923 llll III Q. L. Hot/(577'.

w a w Patented Nov. 4-, 1924.

UNETED STATES AARON L. HOGKETT. OF BIRMINGHAM, ALABAMA. i

SCRAPE SET.

Application filed August 21, 1923. Serial No. 658,531.

To all whom it mwy concern:

Be it known that I, AARON L. HOCKETT,& citizen of the U nited States of America, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Scrape Sets, of which the following is n specification.

My invention relates to a set for turning,

swaging or rolling the cutting edge of wood working scrapes to the end that a cutting edge having the desired shape and angular relationship to the blade may be formed without the use of burnishers.

More particularly, my object is to design a novel scrape set comprising a very hard smooth metal base, either fiat or of the desired conformation, having mounted in spaced relationship above the same a rigid turning edge under which the sharpened edge of the scrape is adapted to be driven and about which the scrape blade is bent while its edge is held in contact with the base. In this manner the edge is turned or rolled as the blade is driven in, and if desired a suitable gauge may be provided to give the desired angle to the cutting edge.

My invention may be made up in a variety of ways and by the employment of various materials, its preferred embodiment comprising a tool steel base with an angle forming the bending edge rigidly bolted in spaced relationship with the base, the spacing being preferably accomplished by forward extending hold-downs which serve to attach the set to the work bench or support.

My invention further comprises the novel details of construction and arrangements of parts, which in their preferred embodiment only are illustrated in the accompanying drawings, which form a part of this specification, and in which:-

Fig. 1 is a plan view of my improved scrape set.

Fig. 2 is a cross-sectional view through the base and angle bar showing the brace and connecting bolt in elevation.

Fig. 3 is an end elevation of Fig. 1 showing the blade while being treated.

Similar reference numerals refer to similar parts throughout the drawings.

In the embodiment of my invention illustrated, I show a base of hard metal, preferably tool steel, having a smooth polished top surface 2 which in the embodiment shown is flat but which may conform to any curvature or desired shape for the scrape edge. Mount ed above this surface 2 is a rigid metal shaping bar 3 preferably formed by angle so as to present great strength in the plane of the stress or strain imparted thereto while turning the scrape edge. This angle 3 is mounted in spaced relationship to the base 2 by means of heavy bolts 4. The head of each bolt is received in a countersink 5 in the base 1 and the bolt passes up through a slot or hole in the base and through a hold-down iron 6 and through a hole in the angle 3 receiving a nut 7 on its upper end by means of which the set is held assembled. The forward ends of the hold-downs 6 project beyond the forward edge of the base 1 and are bent down to the bottom level of the base and then outwardly at 8 where they are provided with holes to receive screws 9 by means of which N the set is attached to the'work bench or support. Near the center of the vertical leg of the angle 8 I mount a gauge 10 which projects horizontally towards the forward edge of the base and is adjustable to determine the ually raised up towards its dotted position and when it finally cont-acts with the gauge screw its edge 12 will have been set at the desired angle to the blade and this is accomplished without any moving parts. Where the scrape is to have any conformation other than straight a suitable base and bending bar can be provided for such shape and the edge can be set up thereon in the same manner as has been described.

I prefer to have the bending bar 3 separate from the base as it can be detached and the the art without departing from the invention as defined in the appended claims.

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

1. A scrape set comprising a base having a hard smooth flat surface, and a scrape engaging edge held rigidly above and in spaced relationship to said surface and adapted to permit the cutting edge of a scrape to be driven into the space and bent between the edge and base surface.

2. A scrape set in accordance with claim 1, in which the scrape engaging edge is part of a straight bar having a gauge on said bar which is adjustable to limit the extent to which the scrape edge is bent relative to the scrape blade.

3. A scrape set comprising a base having a hard, smooth flat metallic surface, and an angle bar rigidly mounted above in juxtaposed parallelism to said surface and adapted to receive between it and said surface the cutting edge of a "scrape, as and for the pur poses described.

4. A scrape set in accordance with claim 3, in which the angle bar carries a gauge screw projecting into position to engage the scrape blade as its cutting edge is driven in and bent between the bar and base.

5. A scrape set comprising a tool steel base having a flat top face. hold-down straps projecting forward of the base and adapted to receive means for attaching the base to a support, and a bar rigidly bolted to the base through said hold-downs, said bar having a rigid angle edge juxtaposed to and spaced from the top surface of said base.

In testimony whereof I affiX my signature.

AARON L. HOOKETT.

Witness:

NoMIE WELSH.

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