US65192A - Jerome fasslee - Google Patents

Description

@getint time l geen @frn JEROME FASSLER, OF SPRINGFIELD, OHIO. Leters Patent No.' 65,192, dated 'May 1867.

IMPROVEMENT IN MACHINES FOR MILLING HARVESTER GUARD-EINGEES.

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TO ALL WHOM I'I MAY CONCERN:

Be it known that I, JEROME FASSLER, of Springfield, in the county of Clark, and State of Ohio, have invented a new and useful Improvement in Machines for Milling I-Iarvesters Guard-Fingers; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which- Figure 1 is a front elevation of my machine.

Figure 2 is an end elevation of the same.

Figure 3 is a vertical longitudinal section of one of the clamping-blocks or holders to hold the lingers while being milled. I

Figure 4 is a side elevation of one of guard-fingers as forged.I

Figure 5 represents the finger after being milled, in side and front view.

That others may understand my invention, I will particularly describe it.

My invention consists in the construction of a machine designed and adapted particularly to the manufacture of harvesters guard-fingers, and its elements may be recounted as follows first, in mounting the main shaft upon which the cutter-heads are placed upon a vertically movingV carriage, so that the cutters may be adjusted to the height of thework; sec'ond, placing the bearings of the main shaft all between the gearing on one end and the cutter-heads on the other; third, the construction of the holding-block and manner of holding the guard-lingers therein fourth, the arrangement of the carriage upon which the work is carried under the cutters; fth, the arrangement of the automatic feeding mechanism and let-off.

The frame of my machine consists of a cast-iron bed-plate, A, and back A', supported upon four legs E. The back A is planed on its edges and face, and the former are mad-e parallel, and receding atan acute angle from the face in the form known as dove-tailed. A vertical recess is made up and down its centre as at O, and Within this recess is placed the adjusting-screw D, by means of which the cutters may be raised or lowered to adjust them properly to their work. The hand-wheel E, at the top of the screw D, serves to rotate thc said screr.7 as desired. The carriage F is fitted to the face of the bach A, and at its rear is a dove-tailed recess fitted to and corresponding with the edges of said back, so that when this carriage is in position it may he moved freely along the face oflthe back in a vertical direction, but will not move in any other direction without the removal of portions of the frame, Ste., for the purpose. The screw D passes througha nut attached to the back of the carriage F, which is thereby raised or lowered when the said screw is rotated. The main shaft G and counter shaft H are both mounted in boxes I I I I, on the front of the carriage F, so that as the carriage is moved up and down the distance between these two shafts remains unchanged, and their connecting gear-wheels .I and K are always in mesh. L and M are fast-and-loose pulleys, upon which the main driving-belt N runs and com4 municates motion tothe working parts of the machine. Upon the end of the main shaft opposite to the gear- Wheel Jthe milling cutters are placed. This end of the shaft Gr is projected beyond the edge of the carriage F far enough to receive all of the sections 'of the cutter, which are retained thereon by a screw-nut. Ihis end of the main shaft is also made considerably larger and stiffer than the remainder of the-shaft, so that it may have strength to resist the lateral strains to which it will be subjected. The cutters' O O are made in sections of about one inch in thickness, more or less, and the cutting edges are usually arranged as shown in fig. 1, z'. e., part diagonal to, and part parallel with, the axis of the shaft Gr, so that the cutters will commence to cut at one edge sooner than at the other, and thus make the operation continuous instead of intermittent, as would loe the case if all of the cutting edges were parallel with .the axis of the shaft. The machine suffers much less strain, and less power is required to operate it, in consequence of this arrangement of the cutting edges. The cutters are made thin,vbecause if a cutting edge fails in consequence of defective tempering or other cause, it causes cornparatively small less, as the broken section can readily be replaced with avperfect one. The use of thin sections also enables me to arrange offsets in the work in such positions as I desire, and to change their positions when required, without the trouble and expense of manufacturing cutters specially adapted to the division of the surfaces to be milled. By arranging the cutters upon the Aprojected end of the shaft G, I am also enabled to use much smaller cutters than would be feasible if the shaft G had a support outside of said cutters, as said support would necessarily interfere with any clamping device which might be required to hold the work close t0 The detachable holdingbed g, carriage P, and feed-screw Q, combined with the hand-wheel R, worm S, and driving-band T, all combined for joilit operation substantially as shown.

The combination of the set-stop Y, let-off device W X Z, mid dropping-box U, to stop the movement ol the carriage P at the desired point.

The detachable holding-block g, in which two or more guard-fingers may be secured et one time, in comhina/sion with the carriage P :md cutters O of :L milling machine.

JEROME FASSLER.

Witnesses:

THOMAS J. PRINGLE, CHARLES EVANS.

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