US1198413A - Sharpening device. - Google Patents

Description

C. H. BRENNER. SHARPENING DYEVICE. APPLICATION man FEB. 7. 1916.

1 1 98,41 3 Patented Sept. 19, 1916.

CHBRENNER wow CHARLES H. BRENNER, 01? PORT HURON, MICHIGAN.

SHARPENING DEVICE.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed February 7, 1916. Serial No. 76,838.

To all whom it may concern Be it known that 1, CHARLES H. BRENNER, a citizen of the United States, residing at Port Huron, in the county of St. Clair and State of Michigan, have invented certain new and useful Improvements in Sharpening Devices, of which'the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in sharpening devices and it is an objcct of the invention to provide a novel and improved device of this general character which may be readily applied in operative position, and whereby the grinding or sharpening member may be rotated with convenience and facility.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved sharpening device whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features. of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, 1 will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is an elevational view with a portion broken away of a sharpening device constructed in accordance with an embodiment of my invention; Fig. 2 is an enlarged detail sectional view with parts in elevation illustrating the mounting of the supporting upright for the grinding member as herein embodied; and Fig. 3 is a fragmentary View partly in section and partly in elevation illustrating a further embodiment of my in vention.

As disclosed in the accompanying drawings, 1 denotes an arm or plate having one end provided with the upstanding extension or arm 2, terminating in the bearing 3 arranged at right angles to the extension or arm 2, and through which is disposed the shaft 4. The outer end of the shaft 4 has aflixed thereto a disk 5 provided with an operating member 6 in order that requisite axial rotation may be imparted to the shaft 4. The inner end of the shaft 4 has aflixed thereto a bevel-gear 7 in mesh with the bevel-gear 8 loosely mounted upon the upper extremity of the standard 9 extending from the plate 1 intermediate the length thereof, said arm being arranged substantially parallel with the extension or arm 2. The standard 9 adjacent its connected end is provided with the laterally directed arm or extension 10 overlying the free end portion of the plate 1 and coacting therewith to afiord a aw whereby the device may be suitably secured in applied position, and to further assure the maintenance of the device in applied position, I have threaded through the free end portion of the plate 1, the screw 11 affording an effective clamping means, the outer end of said screw 11 being provided with a winged head 12 for a purpose which is believed to be self-evident.

As is particularly disclosed in Fig. 2, it is r to be observed that the upper or outer extremity of the standard 9 is provided with a reduced extension 14 which has in threaded engagement therewith the cones 15 which coact with the centrally reduced portions 16 formed in the opposite faces of the gear 8 to afford suitable race-ways for the antifriction members 17 herein disclosed as comprising spherical members. It is also to be observed that the bore or axial opening 18 of the gear 8 has a diameter in excess of the diameter of the extension 14, whereby it will be perceived that the gear 8 is capable of free rotation about the extension 14. It

will also be observed that the outer end of the extension 14 has coacting therewith the looking nut 19 for. a purpose which is bein order to detachably connect the upright 20 to the upper face of the gear 8, and it is to be noted that said upright 20 is arranged at the axis of the gear 8 and has its inner end recessed, as at 23, so that no obstruction will be offered by the outer end of the reduced extension 14 of the standard 9 and its concomitant parts.

The upper end of the upright 20 has secured thereto through the medium of the key 24, the sleeve 25 depending from the circular plate 26. Threaded through the plate 26 adjacent the periphery thereof and preferably in equi-distantly spaced relation, are the upstanding pins 27 adapted to be received within suitable recesses 28 formed in the under face of a whet stone or grinding member 29 adapted to be engaged by the tool to be sharpened, it being self-evident that the requisite rotation will be imparted to the member 29 by rotating the disk 8.

In order that my device may be employed with the upright 20 in a horizontal position, I provide the arm or extension 10 with the laterally directed spaced lugs or arms 30 arranged in parallelism and extending substantially in the same general direction as the standard 9 and away from the plate 1, said lugs or arms 30 affording therebetwcen a jaw to receive the marginal portion by a suitable support, and threaded through one of the arms 30 is the clamping screw 31 coacting with said support in amanner which is believed to be clearly apparent to those skilled in the art to which my invention appertains.

In the form of invention disclosed in Fig. 3, the upright 20 has its outer end provided with the recess 3:2 adapted to receive the member or body 33 which is held Within the recess 32 through the medium of the clamping screws 3% threaded through the walls of the opening 32 and coacting with the memher or body 33 in a conventional manner.

The outer end of the member or body 33 is provided with the reduced and threaded extension 35 adapted to be directed through a suitable o iening formed at the axial center of an emery wheel or other grinding member 36 indicated by dotted lines, and coa-cting with said threaded extension 35 is the clamping nut or bur 37 which serves to effectively clamp the grinding member in. applied position, as is thought to be clearly disclosed in Fig. 3 of the accompanying drawings.

From the foregoing description, it is thought to be obvious that a sharpening device constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim:

1. A sharpener comprising a plate havin an upstanding arm, a shaft rotatably supported by said arm, a standard carried by the plate intermediate its length, an ar carried by said standard overlying the free end of the plate to afford a jaw, a clamping member threaded through the plate at a point intermediate the arm of the standard, an upright rotatably supported by the free extremity of the standard, a plate carried by the outer extremity of the upright, pins extending beyond the outer face of the plate, a grinding member positioned upon the plate and provided. with recesses to receive the extended portions of the pins of the plate and an operative connection between the shaft and the upright.

2. A sharpener comprising a plate having an upstanding arm, a shaft rotatably supported by said arm, a standard carried by the plate intermediate its length, an arm carried by said standard overlying the free end of the plate to afford a jaw, a clamping member threaded through the plate at a point intermediate the arm of the standard, a gear rotatably supported by the upper end of the standard, an operative connection between the gear and -the shaft, an upright affixed to the gear positioned at the axis of the gear, a plate secured to the outer end of the upright, and a grinding member supported by the plate.

3. A sharpener comprising a plate having an upstanding arm, a shaft rotatably supported by said arm, a standard carried by the plate intermediate its length, an arm carried by said standard overlying the free end of the plate to afl'ord a jaw, a clamping member threaded through the plate at a point intermediate the arm of the standard, an upright rotatably supported by the free extremity of the standard, a grinding member carried by the upright, an operative connection between the shaft and the upright, spaced arms extending from the second named arm, and a clamping member threaded through one of said last named arms.

In testimony whereof I hereunto atlix my signature in the presence of two witnesses.

CHARLES H. BRENNER.

Witnesses:

ALEX. O. MCMANN, Axons G. MAoKAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. G.

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