US16681A - Pile-cutting machine - Google Patents

Description

UNITE IP STATES PAI FFICE.

ISAAC H. COLLER, OF POUGHKEEPSIE, NEV YORK.

FILE.- CUTTING MACHINE.

Specification of Letters Patent No. 16,681, dated February 24, 1857.

T 0 all whom it may concern:

Be it known that I, ISAAC H. OOLLER, of the city of Poughkeepsie, county of Dutchess, and State of New York, have invented new and useful Improvements in Machinery for Cutting Files, for whichr Letters Patent were granted to John WV. Conk lin, Henry L. Sidman, and Eugene lheitner, of Rampa, New York, on August 17, 1852, and numbered 9,1911; and I do hereby declare that the following is a full, clear, and exact description of the construct-ion and operation of the same, reference being made to the annexed drawings, making a part of this specification, in which- Figure I is a side view; Fig. II, a top view. Fig. 3 is a center' longitudinal section. Fig. 4 is a section with the side removed showing the return motion of the carriage; Fig. 5 a front view, Fig. 6 a rear view, Fig. 7 a section of file holder.

My invention is an improvement on the patent aforesaid, refers to the automatic graduation of the blow, and to the holding of the file blank during the cutting operation. The design of the first part of the invention is to remedy a defect existing in the patented machine, from the directaction of the graduating springs upon the cross piece of the hammer handle, whereby there results a detrimental vibration of the rods holding the springs.

This part of my invention whereby the above stated defect is obviated, consists in making the connection between the springs and hammer handle of two jointed frames, each consisting of a cross piece upon the spring rod receiving the force of the spring, a bell crank upon the extremity of the cross piece of the hammer handle and two rods uniting these parts by joints. The operation being such as to preventall vibration of the spring rods, while the graduating action remains the same.

The second part of my invention consists of a pair of lever jaws, operated simultaneously by screws having opposite threads moving female screws or nuts resting against the arms of said jaws; combined with a grooved tang holder resting upon a spring. The aws and tang holder preventing all lateral or longitudinal movementof the blank, under all the circumstances of cutting; the spring under the tang holderA enabling the groove to retain the tang, as well, when said tang is elevated for the cutting of the point of the file, as when resting flat upon the bed, during the cutting cf the tang end. The details of construction and the operation of the invention here conside-red will be understood from the following description of the machine.

In the annexed drawings E is the main bed of the machine grooved at the top with two V grooves for the movable carriage X to moveupon and forming ways for the straight movement of the carriage X and mounted upon the bevel E are two frames or sides D, D, which afford support and journal bearings to the hammer, cam, and chisel lifter shafts and also as guides to the cutter head.

The top of the carriage X is provided with the following device for holding the file represented by the letters Y, C and F, of which a separate sectional view of Y can be seen in Fig. 7 and which consists of a right and left screw with two nuts which nuts are pressed by the screw against the levers F at one end which closes the other ends against the file thus preventing it slipping endwise and the tang is held by C around piece grooved at top to receive the tang and a spring at the bottom which keeps the file up until the roller U presses it down and keeping it from shifting side wise and together holding it firm upon the bed or carriage X and yet always presenting the part of the file to be operated upon firm upon the carriage X and to the action of the chisel.

Having secured the file upon the heel or carriage, I will now proceed to describe the operation of the machine: The machine is placed in motion by pulling the lever K which gives motion to the shipper I and throws the belt on the pulley M attached to the cam shaft N and places it in motion and also the screw B and pressing the nut Z into the screw B. By means of the handle Z the carriage X advances by means of the feed arrangement working by means of an eccentric S communicating with the rod Y and in its turn giving motion to the ratchet wheel U and screw B and gives the motion to the carriage. When the point of the file blank has arrived under the chisel the Vlever L is pulled which communicates with the stop W which sustains the hammer handle B and the chisel lifter N and pulling the lever L releases and allows the cams R and Q, to perform their respective duties-also the chisel head G to come down to rest or to allow the chisel to operate on the le. After the hammer A strikes the chisel the cam R from its shape quickly raises the hammer A by its action on the hammer handle B and allows the levers l M and N to raise the chisel head G by means of the cam Q, and while both hammer A and chisel holder G are up the eccentric cam S presses down the rod Y which gives motion to the ratchet wheel U and screw B advancing the carriage X the distance of one tooth. When the cam Q releases the lever N and allows the chisel head G to come down when the cam R releases the hammer handle and allows the hammer A to strike the chiseland completing the revolution of the machine and thus advancing tooth after tooth until the tile is completely cut when the handle Z comes in contact with the stop V when the action of Z releases the nut Z and which is forced up from the screw B by the spring a and leaves the bed or carriage X at liberty to be run back. At the same time of the action of the stop V the handle Z releases the lever K and which throws the belt on the pulley NA, (by means of the shipper rod V) which is connected with the eccentric P to which is afliXed the pawl C which works in the rack lV and gigs back the carriage X until the pawl rests upon the plane piece of sheet iron Z which is clamped to the rack l/V by means of the clamp e and when the carriage stops. l/Vith the Same motion of Z the stop l/ is thrown so as to catch the hammer handle B and the chisel lifter N and leaving the machine in the same position as when started.

l/Vhen the operation of cutting the file on one side is completed the iile is reversed and the other side presented for operation. For the automatic graduation of the blow I employ the pinion C which works in the rack W fastened to the carriage X and advancing with the carriage X causes the pinion O and the cams F, F, to revolve pressing down the guide G, G, which in its turn is connetced with the rods T T on which there are springs S S, the lower ends of which rest on the vibrating frames D P R Q-connected at D D with the shaft I and secured to the hammer A and hammer handle B by piece C secured in hammer A. As the rods T are drawn down by the action of the cams F F, the springs S S are made to act with greater force on the hammer through the vibrating frame D P R Q in the same manner as in the original patent, while at t-he same time rods T are free from the vibration they receive from the rise and fall of the hammer owing to the construction set forth in the aforesaid patent.

I do not claim the manner of automatically graduating the blow by the action of the cams and springs, but

I claim as an improvement on the mode patented by Conklin, Sidman, and Wheitnerl. The jointed frames P Q R D for transmitting the graduating eifect of the springs to the hammer, so that the rods holding said springs will not vibrate from the movement of the hammer.

2. I also claim the combination of the lever jaws with the spring tang holder, arranged and operating substantially as and for the purposes set forth.

ISAAC PI. COLLER.

Witnesses JOHN D. B. COLLER, AAR/1N FROST.

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