US625235A - bailey - Google Patents

Description

Patented May I6, I899.

H. C. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 24, 1899.)

3 Sheets-Shut l.

um Model.)-

Patented May [6, I899.

H. c. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 94, 1899.)

3 Sheets-Sheet 2.

(No Modal.)

No. 625,235. Patented May "5,1899.

H. C. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 24, 1899.) (No Model.) 3 Sheets-Sheet 3.

UNITED STATES PATENT OFFICE.

HENRY CHARLES BAILEY, OF KENT, OHIO, ASSIGNOR TO JAMES DWIGHT FOOT, OF NEW YORK, N. Y.

FlLE-CUTTlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,235, dated May 16, 1899.

Application filed January 24, 1899. Serial No. 703,259. (No model.)

To all whovn it vnag concern.-

Be it known that I, HENRY CHARLES BAI- LEY, a citizen of the United States, residing at Kent, in the county of Portage and State of Ohio, have invented certain new and useful Improvements in File-Cutting Machines, of which the following is a specification.

My invention has for its object to out two file or rasp blanks simultaneously and yet produce articles which are regularly cut and uniform-in character; and to this end my invention consists in providing a file or rasp cutting machine with blank-holding beds capable of a free rocking movement, adapting them to accommodate the positions of the blanks to the action of the cutting tool or tools, as fully set forth hereinafter and as illustrated in the accompanying drawings, in which- Figure l is a side elevation showing one form of file-cutting apparatus provided with my improvements. Fig. 2 is an end View. Fig. 3 is a side elevation of the carriage, bed, and their support. Fig. 4 is a plan of Fig. 3. Fig. 5 is an end view of Fig. 3. Figs. 6 and 7 are diagrammatic views showing in an exaggerated way the capacity of the blank-supports to accommodate themselves to the tool under different positions. Fig. 8 is a diagram illustrating certain modifications.

My improvements are adapted to be used with file-cutting and in some cases with raspcutting machines of different constructions; but as shown they are applied in machines havingabase A, horizontal groove B, carriage O, sliding longitudinally in said groove, and a propelling-screw D, with which the carriage may be connected,as desired, by turning down a wing F, while a cutterE reciprocates above the carriage under the action of well known devices not necessary to be described.

Upon the carriage is mounted a member, which I term a support G, so as to be capable of rocking upon its central axis. This support may vibrate upon a longitudinallyextended pivot as trunnions at the ends or may be otherwise supported upon a pivot so as to yield when pressure is brought against the top face upon either side of the longitudinal center. A preferable arrangement consists in recessinglongitudinally both the support and the carriage, so as to receive a bearin g-bar a, fitting said recesses, therebeingsufl ficient room between the lower face of the sup port and the n pper face of the carriage to permit the desired rocking of the former. In recesses in the carriage, on opposite sides of the longitudinal center, are inserted springs b, which bear upon the support and tend to maintain it in a level position.

There are two beds II II for the file-blanks, arranged parallel to each other and each mounted to vibrate on its longitudinal center upon a hearing at the upper side of the support G. While any suitable means may be employed for so mounting the beds, Iprefer to recess the upper face of the support and under faces of the beds to receive bearing-bars c 0.

Suitable means is provided for normally maintaining the level positions of the beds as, for instance, a transverse strip of rubber d, bolted to the upper face of each bed, tending to maintain both faces on the same plane, but permitting each bed to rock to a certain extent independently of the other. The upper face of each bed may be provided witha zinc or other facing, as usual, and each bed is also provided with a strap e, for slipping over and holding the tang of a blank X, and side bearings i, and to prevent the longitudinal movement of the beds the carriage O is provided at one end with astop or bearing plate fand at the opposite end with a standard g, through which extends screw-bolts h h, that may be turned to bring their ends so close to the ends of the beds as to prevent longitudinal movement of the latter.

The faces of the beds and of the file blanks thereon are below the cutting-tool E, the reciprocation of which,in connection with the travel of the carriage, results in cutting the blanks transversely or diagonally at successive points. v

Heretofore it has not been practicable to accurately cut a number of files simulta neously in a single machine, as owing to wear of the cutter or imperfect adjustments of the parts one blank would be out deeper than another or deeper upon one side than upon the other, resulting in imperfect and ir= regular articles. By the above means, however, the out upon each blank is regular and the articles produced are of uniform character, inasmuch as each bed and the face of the blank thereon will always accommodate itself to the inclination or position of that portion of the cutting edge of the tool which acts upon the blankthat is, in the operation of cutting the face of the blank and the edge of the tool will be maintained parallel to each other and the blank cannot be cut deeper at one edge than at the other. Further, the two blanks willbecutuniformly,evenif oneshould be thicker than the other, because the support for the blanks will yield as soon as the cutting edge of'the tool is brought against the face of the blank which is most elevated and until both faces are in contact with the cutting edge, after which the cutting operation upon both will be uniform.

While I have referred to the use of a single tool or cutter operating upon both blanks, there may be two cutters mounted upon a reciprocating carrier or head, as shown in diagram Fig. 8. In such case itis immaterial whether or not the cutters wear uniformly. In Fig. 8 I show also bearing-heads a 0, formed upon the support 0.

In Fig. 6 I illustrate diagrammatically the positions taken by the parts with a cutter having a somewhat inclined cutting edge and blanks of different thicknesses.

In Fig. 7 I indicate the action, assuming the cutting edge of the tool to present different angles to the different blanks.

I may remark that while I have shown the bed in a V shape this particular shape is not necessary, as the bed may be a square or fiat bed or other shape-as, for instance, a halfround bedwithout affecting the general principles of the invention.

\Vithout limiting myself to the constructions shown, I claim as my invention- 1. The combination with the traveling carriage of a file-cutting machine, of a blanksupporting bed mounted upon the carriage to move therewith and being free to rock, and a longitudinally-extending pivot upon which the bed is supported, substantially as set forth.

2. The combination with the traveling carriage of a file-cutting machine, of a blanksupporting bed mounted upon the carriage to move therewith and being free to rock, and alongitudinally-extending pivot upon which the bed is supported with its axis below the bed, substantially as set forth.

3. The combination with the traveling carriage, of a file-cutting machine, of a support free to rock on said carriage, a'pivot interposed between the carriage and support upon which the latter may rock, and two blanksupporting beds each pivotally mounted upon longitudinally-extending pivot upon which the support is mounted, and springs normally tending to hold the support in a horizontal position, substantially as set forth.

6. In a file-cutting machine, a support, a longitudinally-extending pivot upon which the support is mounted and upon which it may rock, and springs normally tending to hold the support in ahorizontal position, combined with two parallel blank-beds, two longitudinally-extending .pivots, carried by the support, upon which the blank-beds are respectively supported and upon which they may rock independently, and springs normally tending to hold the blank-beds in a horizontal position, substantially as set forth.

7. The combination of the carriage of a file-cutting machine, a' central bearing-bar, and recessed support resting thereon, two parallel bearing-bars fitting recesses in the face of said support, and recessed blank-beds resting on said bearing-bars, substantially as set forth.

S. The combination of the carriage of a file-cutting machine, a central bearing-bar, and recessed support resting thereon, two parallel bearing-bars fitting recesses in the face of said support and recessed blank-beds resting on said bearing-bars and springs arranged to normally maintain the support and bed in level positions, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY CHARLES BAILEY.

lVitnesses:

, S.'P. WoLcoT'r,

CHARLES E. XVATTs.

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