US1116058A - Power-driven rasp. - Google Patents

Description

G. HAGEN.

POWER DRIVEN RASP.

APPLICATION FILED JULY z, 1913.

Patented Nov. 3, 1914.

JEL-ks.

THE` MORRIS PETERS Co., PHON; www.. wnsnumioN. D. C4

GEORGE HAGEN, oi)Zini/nanowar,MINNESOTA.yy

rowEELDEivEN Rasi.

Specification of Lettersflatent.

' Patented Nov. 3,1914.

Appucationnieaiuiya,1913.seriainawzoia. n

To all whom t mag/*concern j Be it known vthat I, GEORGE HAGEN, a

citizen of the United States, residing at,k Zumbrota, in the county of Goodhue, State of Minnesota, have invented certain newand useful Improvements` in Power-Driven Rasps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.`

This invention relates to new and useful improvements in power driven rasps and has particular reference to the provision of a rasp for use in farriery. j a

The object of the invention resides in the provision of a rap which shall be e cient in use and kwhich shall be so constructed asto permit of ready and economical manufacture.

With this and other objects in View, the invention resides in the novel combination, formation and arrangement of parts to be more fully hereinafter described and illustrated in the accompanying drawings and particularly pointed out in the claim hereto appended.

Reference is had to the accompanying drawings wherein similar characters yof reference designate corresponding p arts throughout the several views, and in which:

Figure 1 is a side elevational view of a preferred form of the rasp, Fig. 2 is a. vertical longitudinal sectional yiew of the device, Fig. 3 is a sectional view on the line 3 3 of Fig. 1, Figl is a transverse sectional view on the line 4 4 of Fig. 1, Fig. 5 is an end view of the rasp and Fig. 6 is a perspective view of the body block.

Referring more particularly tothe drawings, the rasp is shown as comprising a body block 5 which is substantially rectangular in end elevation andwhich has two opposed side faces outwardly bowed. vIt is ovalin cross section and mayhave imparted to it a rocking motion about itslongitudinal axis 18 to produce a greater or less cutting action as the work may demand. The block is provided in its other side faces with elongated recesses 6 which aresubstantially semicircular in cross section and `which termi-l nate short of the ends of the block, to receive the cylindrical rasp members and 8. These rasp members comprise cylindrical of the class described,

body portions which areprovided .at their ends with beveled edges for receiving the cone-shaped securing members 9 and 10 which are positioned on a shaft 11 journaled as at 12 inthe ends of the block. 'The conesliaped member `9 is keyed to the shaft and is provided on itsperiphery with a socket 13 for receiving a projection 141 carried by the beveled edge of a rasp member. rIhe conesliaped member 10 has threaded engagement on the other end of the shaft.

observed that by the position of shaped members, the raspcylinders may be It will be n the conesecurely clamped withrelation to the shafts 11. As is shown in the drawings, isformed with `coarse teeth on its and the rasp 8` with liner teeth for the rasp 7 periphery finishing.`

Suitable bearing members k15 areprovided on the ends ofthe block andsecured thereto as at 16 to hold the ends of the shaft in relation to the block. i l

Toprovide'means for imparting rotary motion to the shafts 11, the said shafts are extended past-the inner end of the black and provided with gear wheels 17 keyed thereon to mesh with a gea`rf18 carried by a enlarged head cutaway as at 20 to receive the handle portion to the block a plurality of pins 21 are provided which seat in sockets provided therefor in the head of the handle n portion and securing screws 22 arepassed through the head of the handle portion'and the adjacent end of the block.` rlhe shaft 18 extends through a bore 23 formed in the handle portion and is operatively con nected at the outer end of the handle por-` tion to a conventional type of flexible power shaft 24.

so 'shaft rotatable in the handle portion y19 of i i the device. This yhandle portion includes an To provide means for hanging the device y up when not in use :the outerl end of the block is provided with afreduced extension` 25 which is apertured as at 26.

In operation, the bowed portion of the block is used as a rest andthe angle at which said bowed portion is. positioned to the ob-` ject operated upon determines the depth to which the ,rasp' teeth cut. It will be seen that by this construction and arrangement that a steady operation is procured. By the provision of the iine and coarse tooth rasp members it will be seen that the roughing and nishing may be done with only one mounted in said recesses, and means for rotool and without cutting olf the power. 4 tilting said resp members. 1U

What is claimed is: In testimony whereof, l aliix my signa- In a device of the class described, a head ture, in the presence of two witnesses. 5 portion oval in cross section, the opposed p GEORGE HAGEN.

side faces thereof provided with conczwed "eWitnesses: recesses terminating short of the ends therev H. E. WEISS, of, cylindrical rasp members rotatably LABS A. HOLTAN.

Copies of this patent mat be. obtained for five cents each, Toy addressing the Commissioner of Patents,

Washington, '.D. G.

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