US903365A - Machine for shaping and sharpening disks. - Google Patents

Description

O. T. FEGERT. MACHINE FOE SHAPING AND SHARPENING DISKS.

APPLICATION PILBD JULY 16, 1907.

Patented Nov. 10, 1908.

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i' fi Z07 B I f 2/ A TTOR/VE VS OTTO 'l. FEGERT, OF SAVANNAH, MISSOURI.

MACHINE FOR SHAPING AND SHARPENING'DISKS.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Application filed Ju1y,16,1907. Serial No. 383,983.

To all whom it may concern:

Be it known that I, Orro T. Fnennr, a citizen of the United States, residing at Savannah, in the county of Andrew and State of Missouri, have invented a new and useful Machine for Shaping and Sharpening Disks, of which the following is a specification.

This invention has relation to machines for shaping and sharpening disks and it consists in the novel construction and arrangement of its parts as hereinafter shown and described.

The object of the invention is to provide a machine of special construction which is adapted to be used to advantage for shaping up and sharpening disks of various sizes and configuration. The parts of the machine may be so adjusted that the disk may be sharpened or beveled upon its inner or outer edge as desired.

The machine consists primarily of a frame having rolls ournalcd for rotationthereon, one of which is fixed and the other is adjustable. A vertically adjustable bracket is attached to the frame below the rolls and an arm is pivotally attached to said bracket. An adjustable work holder is slidably mounted upon the arm and an extensible brace connects the outer end of the arm with the frame of the machine. The work holder consists of binate blocks and means for adjusting the said blocks with relation to each other, one of the said blocks being adapted to rest upon the arm and the other block having means for retaining the disk.

In the accompanying drawing :-Figure 1 is a side elevation of a machine. Fig. 2 is an end elevation of the same with parts removed. Fig. 3 is an end elevation of the binate work-holding block, and Fig. 4 is a side elevation of the same. Fig. 5 is a top plan view of the same.

The machine consists of a frame having the uprights 1 which are connected together at their sides by the cross pieces 2. The shaft 3 is journaled for rotation in the cross pieces 2 and the belt pulley 4 is attached :0 said shaft. The roll shaft 5 is journaled in the blocks 6, 6 which are retained between the uprights 1. Said shaft 5 is provided with a worm wheel 7. The shaft 3 is provided with a worm 8 which meshes with the wheel 7. The roll shaft 9 is journaled in the bearings 10, 10 which are also located between the uprights 1, 1. The saidbearings 10 may move vertically between the said upright. The shafts 5 and 9 are pro vided with the gear wheels 11 and 12 respectively which intermesh. The bearings 10 are provided at their upper ends with the inclined surfaces 13 lying transversely with relation to the shafts 9. The longitudinally movable pin l llies at its end portion in perforations provided in. the uprights 1 above the bearings 10. Said rods are threaded at their ends and the nuts 15 engage the threaded ends of the said rod and bear against the outer sides of the uprights 1. The lock 16 is fixed to the rod 14 and is provided with a lower beveled surface 17 which is adapted to engage the surface 13 of the bearing 10. Thus it will be seen that by adjusting the rod 1 1 and the block 16 the movement of the shaft 9 away from the shaft 5 may be limited or regulated. The bracket 18 is attached to one end of the frame of the machine and is provided with the elongated slots 19 which receive the bolts 20 whereby the said bracket may be adjusted vertically upon the frame of the machine. The rolls 21 and 22 are attached to the ends of the shafts 9 and 5 respectively and are located above the bracket 18. The arm 23 is pivoted to the upper end of the bracket 18 and extends in the same general direction as the shafts 5 and 9 but not necessarily in alinement or parallel with the same. Although, such positions may be assumed by the said arm. The arm is provided with an elongated slot 2 1. A. stud 25 is attached to the frame of the machine below the bracket 18 and the screw 26 is journaled for rotation in the said stud. The threaded portion of the said screw engages the lower end of the bracket 18 and affords means for moving the said bracket after the bolts 20 have loosened. When the bracket is properly adjusted the said bolts 20 are again tightened and form positive means for holding the bracket and relieve the thread of the screw 26 of strain. The crank handle 27 is attached to the lower end of the screw 26.

brace made up of binate members 28 is pivoted at its lower end to the stud 25 and at its upper end to the outer end of the arm 23. Each of the members 28 is provided with an elongated slot 29 and side lugs 30. The lugs of one member receive the edges of the other member and vice versa, while the bolt 31 passes through the slots 29 of the two members and forms a securing means for the members which may be elongated or telescoped at will.

A work holder 32 is provided which con sists of binate blocks 33 arranged to slide with relation to each other, the upper one of which may swing laterally. The lower block is provided with a lug 34 which is'located in the slot 2% ofthe arm 23. The screw 35 is journaled in the outer end of the arm 23 and is provided with a crank handle 26. The inner end portion of said screw is threaded and engages the threaded perforations provided in the lug 34. By means of said screw the block 32 may be adjusted bodily along the arm 23. The handle 36. is carried by the upper block 33. Thus, by turning the handle 36 the-upper block 33 may be moved with relation to the lower block 32. The upper block 33 may be provided with an inclined work-supporting surface 37 and the threaded. spindle 38 is erected upon the upper block 33 at a right angle to the surface 37. The hub of the disk 39 rests upon the surface 37 and surrounds the spindle 3.8 and is held against the upper block 33 by the nut 40 which engages the thread of the spindle 38.

The rolls 21 and 22 may be of any desired configuration though shown in the accompanying drawing and illustrated as being one cylindrical and the other frustoconical, the cylindrical roll having an outstanding annular flange which enters a correspondmg recess provided in the other roll, the edges of the flange and recess cooperating A both sides of its edges or it may or beveled at either side of its edge as de with each other ins uch manner as to consti tute a metal shear or cutter. 4 I

From the foregoing description it is obvious that a machine especially adapted for shaping and sharpening disks of various sizes and con figuration is provided. The parts are so arranged that the disk may be presented to the rolls at any desired angle irrespective ofits shape, spindle 38 it may be sharpened or beveled at be sharpened.

sired. In moving the disk toward the rolls the screw 35 is turned throughout the major adjustment while the handle 36 is swung to obtain the minor adjustment.

Having described my invention what I claim as new and desire-to secure by Letters- Patent is A machine as described 7 comprising rolls Ournaled for rotation,

a bracket slidably mounted upon the machine for movement in transverse alinement with the centers of the rolls, means for moving said bracket with relation to the rolls, meansfor fixing the bracket with relation to the rolls, an arm pivoted to the bracket so as to swing in a plane in which lie the roll axes and awork support adjustable along the arm. r

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

OTTO T. FEGERT. V

Witnesses:

OSCAR HALL, A. L. WHITEFORD.

and that reversing the disk upon the,

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