US122674A - Improvement in machines for chamfering the rails of wagon-bodies - Google Patents

Description

N0, 122,674- PaltentedJarLQ,1872t CHARLES SPOFFORD, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR CHAMFERING IHE RAILS 0F WAGDN-BODIES.

Specification forming" part of Letters Patent No. 122,674, dated January 9, 187,2; antedated December 28, 1871 To all rwhom it may concern:

Be it known that I, CHARLES SPOFFORD, of Boston, in the county of Suffolk and State of Massachusetts, have invented a Machine for Cutting and Finishing the Rails and Uprights ofVagon-Body Frames, of which the following is a full, clear, and exact description, reference beinghad to the accompanying drawin g making part of this specification, in which- Figure l is a perspective view of my machine for cutting and iinishing the rails77 and uprights of wagon-body frames. Fig. 2 is a longitudinal vertical section through the same. Fig. 3 is a transverse vertical section through the same on the line x x of Fig. 2. Fig. 4 is an end elevation; Figs. 5 and 6, details to be referred to. Fig. 7 represents one ofthe rails, and Fig. 8 one of the uprights. Fig. 9 represents ,the pieces halved or tted together.

This invention consists in a machine in which the required cuts are first made in the rails 7 and uprights of a wagon-body frame to admit of their being fitted or halved together, after which the Vrails and uprights7 are placed upon a table provided with ways which guide the pieces against a cutter, whichremoves the corners, these several operations being performed with great rapidity, thereby economizing much time and labor.

To enable others skilled in the art to understand and use my invention, I will proceedto describe the manner in which I have carried it out.

In the said drawing, A represents the framework in suitable bearings, in which runs a horizontal shaft, B, which is revolved by a belt passing over a pulley, a. On this shaft B, near one end, is secured' a series of circu lar saws, b c, which project through a slot, d, in the table D, hinged at e to the frame-work to admit of its being raised when it is required to remove the saws. The table D is provided with a groove, f, in which {tsY a slide, g, to which is secured a rest, h, provided with a notch, l0, so as to allow of its' passing over the saws; and against this rest is placed the strip of wood (of rectangular form in crossscction) which is to form a rail or upright.7 The sliding rest with the strip is then forced forward by hand so as to bring the strip into contact with the saws, whichmake a single cut, t', Figs. 7 and S, the cuts so made being of the exact size to admit of two pieces, j k, being accurately fitted or halved7 together, `as seen in Fig. 9. The end saws b are cuttingoff77 saws, while the intermediate ones, c, are splittin g77 saws, which arran gem ent insures a clean sharp cut, while the width of the cut can be regulated by varying the number of saws. If, however, a very slight variation only is re quired strips of paper or other suitable material may be interposed between the saws. The depth of the cut may be regulated by the adjusting-screw l, by means of which the table may be lowered or raised to cause the saws to project more or less above its upper surface.

I will now describe the manner in which the corners of the strips are removed so as to give them the form shown in Figs. 7 and 8. E is a cutter, which is secured to the shaft B, and projects up through an opening, m, in a table, Gr, which is hinged or pivoted atn to the framework A. The sides of this table G are inclined or angular, and it is divided centrally by a partition, o, having inclined sides, as seen in Figs. l and 2. Two guide-ways, 1l l2, are thus formed for the reception of the strips after the required cuts i are made therein by the saws b c, the shape of each way being such as to present the strips to the cutter E in the required position to insure its being cut t0 the desired form, as seen in Figs. 7 and 8. In order to insure the commencement of the removal of the corner of the strip at a given distance from each side of the cut c stops p q r are provided. When a strip having its cut t' on the outer side is placed upon the table G in the way 1l. it is slid along until the shoulder 13 of the stop p drops into the -cut t', as seen in Fig. 5, when the cutter E is brought into action and the strip is then forced along by hand in the direction of the arrow, Fig. 5, until the' corner has been removed as far as desired. The opposite corners of each strip are removed by bringing it into contact with the cutter E, first on one side of the partition o and afterward on the other side. When a strip having its cut?) on the inner side is placed upon the table G the stop p cannot be used,

when thecutter is brought into action as before. It is evident that the position of the Work on the table G might be fixed by means of marks, and the stops be dispensed with, but in such case the Work could not be so easily and rapidly performed. The table G can be raised when it is desired to obtain access to the cutter E, and the depth oi' the cut made by the cutter can be regulated by raising or lowering the table, which rests upon a screw, s, which can be adjusted as required.

The above-described machine is of simple construction, and by its use much time and labor may be saved, While the Work is performed in a thorough and accurate manner.

Claims.

What I claim as my invention, and desire to secure by Letters Patent, is

CHAS. SPOFFORD.

In presence of- P. E. lnsCHEMACHER,v

N. W. SrEARNs. (3l)

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