US642289A - Metal-working machine. - Google Patents

Description

No. 642,289. Patented lan. 30, |900.

Fn. C. BILLINGS. METAL WORKING MACHINE.

(Application led Oct, 25, 1899.)

2 Sheets-Sheet l' (No Windel.)

ma cams varias cn. immuno` wnmnvon, n c

No. 642,289. Patented Jan. 30, |900. F. C. BILLINGS.

METAL WORKING MACHINE.

Application med oct. 25, 1899.)

(No Model.) 2 Sheets-Sheet 2,

iviTnn STATES FREDERIC C. BILLINGS, OF

HARTFORD, CONNECTICUT.

METAL-WORKING MACHINE.

SPECIFIGATION forming part of Letters Patent No.. 642,289, dated January 30, 1900.

Application filed October 25, 1899. Serial No. 734,705. (No model.)

To all whom t may concern;

Be it known that I, FREDERIC C. BILLINcs, a citizen of the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Metal-Vorking Machines, of which the following is aspeoifi cation.

This invention relates to metal-working machines of that class having a reciprocatory tool and means for actuating said tool, and has for its object the provision of an improved head in a machine of the character described, said head carrying the tool-actuating devices and being formedin such a manner that it will strengthen the frame and serve as abracing member between the upper ends thereof, whereby the machine is rendered very stilf and rigid and displacement of the parts and shearing of the securing-bolts are obviated. To this end the head is provided with overhanging members which are tted on the frame and which form, in connection witha central member, means for carrying the tool-actuating devices, so that the parts constituting the operating mechanism may be fitted in place and secured in their proper positions on the frame as a unitary structure.

My invention is shown preferably applied to drop-hammers, although it is not limited thereto, as it may be employed with various classes of machines in which the frame is subjected to strain or vibration by the impact of the tool.

In the drawings accompanying and forming part of this specification, Figure 1 is a perspective view of a drop-hammer embodying my invention. Fig. 2 is a side view of the upper part of the frame, one of the roll-supporting shafts being in section. Fig. 3 is a perspective view of the main part of a head constructed in accordance with my invention. Fig. 4L is a side elevation, partially in section; and Fig. 5 is a plan view of the head, partially in section.

Like numerals and letters designate like parts in all the iigures of the drawings.

In the drawings, 10 represents the base, to which the side frames or uprights 11 and 1l' are secured at their lower ends and between which the tool 12 is guided, said tool in the exempliiication carrying a board 13, whereby the same may be lifted by a pair of rolls 1i and 14', journaled in bearing-boxes 15 and 15', two of which, 15, are adapted to be moved toward and away from the others in the usual manner.

Usual caps 40, hinged to lugs 40' of head H, hereinafter described, are employed for securing the bearing-boxes in position on said head, and the usual rod 50 is provided for releasing the rolls either manually or automatically in a well-known manner.

Heretofore it has been the practice to mount the carriers containing these bearing-boxes iudependently of each other on the tops of the side frames or uprights of the machine and to secure them by bolts passing vertically through said parts, and frequent annoyance has been caused by the shearing or breaking of the bolts, which has been due to the vibration or springing action of the frames or uprights when the machine is in operation and particularly when the hammer or other tool strikes an inclined piece of work and thereby tends to wrench the uprights apart.

In the present construction the head carrying the bearings consists of a body, prefer ably a casting, rigidly secured in position between the tops of the frame or uprights by one or more bolts passing transversely through both of said frames, which are in this manner clamped tightly against the central member of the head, the result being that the strain on the parts due to the action of the machine is evenly distributed and thrown substantially upon the head, and as the bolts for retaining the head in position pass transversely through the uprights and not vertically, as heretofore, all tendency to shear or break the same is practically overcome.

The roll 14 is carried on a shaft 16, having an eccentric 16', journaled in half-bearings l5 of the head, as clearly shown in Fig. 2, while the roll 14 is journaled on a shaft 17, resting in boxes 15', which, as shown in Fig. 2, may be adj usted by the usual bolts. The bearings l5 are located in the side members 19 19 and in the usual hinged caps of the head, which is designated in a general way by H and is provided witha central depending member 20, located between and resting against the uprights, said member 2O being preferably formed integral with the sido mem- IOO bers 19 and 19', although it may be attached thereto without departure from my invention, and having an aperture 21 to permit the passage of a lifting-board or other device 13.

Each of the side members 19 and 19 has at its under side a recess, such as 22, adapted to iit over the top of each side frame 11 and 11', and said central member 2O projects below the side members and serves as au abutment against which the upper ends of the side frames 11 and 11 may be brought to bear, as by means of bolts 23 and 24 and the nuts 23 and 24',respectively, as clearly shown in Figs. 4 and 5.

Each side frame or upright 11 11' is rabbeted at 112, and the projection 113 iits in a recess 22 in depending member 20, ribs or flanges 25 on said member 20 preventing displacement of the head vertically.

As will be understood, the tops of the uprghts 11 11 fit yin the recesses 22 of the head when the latter is placed in position, whereby said uprights will be brought into alinement with each other, while at the same time the distance between them will be positively determined by the intervening central member 20, so that they will be properly spaced apar-t and the hammer will be truly guided when in operation. As will be evident, when the frame of a drop-hammer is provided with a head as above described great rigidity will result, due to the fact that the parts are rigidly united, as shown, and consequently the evil effects due to the vibration of the frame will be reduced to a minimum or entirely obviated.

While the usual lifting-rolls are shown as a type of tool-operating mechanism which may be employed, it is distinctly to be understood that the invention is not limited thereto, for other lifting mechanism may be used without departure therefrom.

Having described my invention, I claim- 1. In a machine of the class specified, the combination, with a tool, of frames between which the tool is guided; a head fitted to and having a projecting member located between and the sides thereof bearing against said frames; means passing outside of the head for securing said head to the frames; and means carried by'the head for actuating the tool.

2. In a machine of the class described, the combination, with a pair of side frames and a hammer,ofa head having a depending member supported by and between and bearing against said side frames, and means passing on each side of but not through the head for securing said head and frames together.

3. In a machine of the class described7 the combination, with a pair of side frames and a tool,- of a head embodying a pair of side members and a central projecting member connected therewith and bearing at each side against the frames; means carried by said head for actuating the tool; and means passing transversely through the side frames at each side of the head for retainingsaid head in position on said side frames.

4. In a machine of the class described, the combination, with a pair of side frames and a hammer having a lifting-board, of a unitary roll-carrying head embodying a pair of side members and a central member integrally connected therewith and having an aperture to permit the passage of the liftingboard, and means passing at each side. of but not throughv the head for retaining saidhead in position on the side frames.

5. In a machine of the class described, the combination, with a pair of side frames and a hammer having a lifting-board, of a unitary roll-carrying head embodying a pair of side members and a central member integrally connected therewith and forming a side abutment for said side frames, and means passing outside of but not through the head for securing said head in position.

6. In a machine of the class described, the combination, with a pair of side frames and a hammer having a lifting-board, of a unitary roll-carrying head embodying a pair of side members and a central member integrally connected therewith and having an aperture to permit the passvage of the liftingboard; means for retaining said head in position on the side frames; and bolts passing on each side of but not through the head for clamping said head in position between said side frames.

7. In a machine of the class described, the combination, 'with a pair of uprights having rabbeted top portions, of a head havinga depending a-pertured member provided with side projections located between said uprights, said head also having recesses to receive and fit upon the uprights; a hammer; and means carried by said head for'raising and releasing said hammer.

8. In a machine of the class described, the combination, with a pair of uprights having rabbeted top portions, of a head havinga depending apertured member integral therewith provided with side projections located between and tted against the shoulders formed by said rabbeted portions of the uprights; a hammer; and means carried by said head for raising and releasing said hammer.

9. In a machine of the class described, the combination, with a pair of vertical uprights having rabbeted top portions, of a head provided with an apertured depending member with side anges fitted vagainst the shoulders of the rabbeted portions of said uprights, said head also having ways or recesses to receive the top portions of the uprights; a pair of rolls mounted in bearings carried by said head, one of said rolls carrying an eccentric; a hammer; a lifting-board carried thereby; and means for actuating the roll carrying the eccentric, to release said hammer.

10. In a machine of the class described, the

IOO

IIC

IZO

combination, with the usual lifting-board, of hammer having a strap adapted to be ena head having bearings to receive said rolls; gaged and lifted by said rolls, substantially a pair of uprights having top portions fitted as and for the purpose specified.

:in recesses of the head; side flanges projeet- FREDERIC C. BILLINGS. 5 ing from the head zuid bearing against the Witnesses:

shoulders of the rabbets in the uprights; DAISY E. MARCHANT,

hinged caps connected to the head; and :i l XVM. H. BLODGETT.

Images