US184777A - Improvement in harness-hames - Google Patents

Description

D. c. GUVTTRI'DGE.

HARNESS-HAMES.

No.184,777. Patented Nov.2l8,1876.-

'VITNES 5:5

ATToRN EY-S UNITED STATES PATENT Orrron DAVID C. GUTTRIDGE, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE- H'ALF OF HIS RIGHT TO THE CRAWFORD MANUFACTURING COMPANY,

OF SAME PLACE.

IMPROVEMENT IN HARNESS-HAMES.

Specification forming part of Letters Patent No. 184,777, dated November 28, 1876 application filed August 19, 1876. 1

To all whom it may concern:

Be it known that I, DAVID C. GUTTRIDGE, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Harness: Hames; and Ido hereby declare that the followingis a full, clear, and exact'description thereof, which willenable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specificatlon.

My invention relates to harness-hames, designed to be of sufficient strength for all uses, and yet of very light weight and easy construction.

The improvement consists, first, in a skeleton structure, having an open interior webbed or netted surface, whereby the strength of the article is unimpaired and the article itself unencumbered by surplus material next to the collar of the harness; second, in a concavoconvex construction, provided with diagonal supports or braces and longitudinal latera'l flanges.

Referring to the drawings, Figure 1 is an interior side elevation, and Fig. 2 a cross-section view and Fig.3, a modification of my improvement.

A is the body of the hame, constructed of a hollow semi-cylindrical formthat is, the exterior of the device is rounded or made convex along its entire length, but the interior or collar surface is recessed or made in the form of a longitudinal concavity. Rigidly secured to, or formed in the same piece with, this shelllike structure A, and connecting the two lateral edges of same, are diagonal cross supports or braces B, which strengthen and bind together the different parts of the hame. These V cross-supports are seated in constant and continuous connection with the interior face-body of the'hame, and extend out from same, so as to be flush with its lateral extremities, and hence present a plane surface, continuous with the interior lateral planes of the hame. Rings, loops, slotted attachments, and the usual appurtenances of a harness-hame may be suitably formed upon, or connected with, the hame, as just described; but since they form no part of my invention, I have not thought it necessary to particularly describe them, it being understood that all appropriate attaching mechanism may be used with my improvement.

In Fig. 3 of the drawings I have shown a modification of my preferable form, in which I make the interior or collar surface of the hame solid, and a constant plane, flush with its edges, while the exterior or convex side of the hame is formed in open-work, having diagonal cross-braces. This form is in substitution of 'having the interior of the hame reticulated; but I desire to be understood that, in either instance, I am not confined to employing the fiat flanges a, extending the length of the hame, but may, in either case, use them or omit them, as I may desire. These flat flanges a, extending the length of the hame, and on either side of same, serve to give a lateral bearing to the hame, and a snugger fit upon the collar.

The hame is constructed entire of malleable iron, afterward converted into steel, cast in one piece by a process which consists, essentially, in molding so that the hame cores itself. The process, more in detail, consists in casting the hame in molds, which, from the peculiar construction of the pattern, does not require a core separate and independent from the main lower bed of the mold, since in molding the hame in a two-part mold it is evident that the pattern can be lifted out direct from its supporting-mold, without breaking in crosssection the several cores forming the corresponding diagonal ribs or cross-pieces cast solid with the hame. If the hame were, on the contrary, a tube instead of an open-work skeleton structure, it is manifest thata core independent from and forming a distinct and separate part of the main molding process would be necessitated; but the present construction of the hame allows of the pattern being lifted out from the sand and leaving-its own recesses, while a tubular construction would require a sand core laid in to form the hollow, and thereby necessitating the addiional expense of making and? handling such ores.

This hame is made entire of iron, converted nto steel after casting, which process'of'con- 'ersi'on may be according to any of the usual I teps. The well known Bessemer process night be appropriately used. H M

Having fully described my invention, what I claim as new is- 1. The skeleton haine, constructed with an )pen interior reticulated surface, substantially ms and for the purpose described.

2. The concayo-c'onvex harness-bathe, provld'ed with flush diagonal cross-supports and longitudinal lateral flanges, substantially as and for the purpose described.

In testimony that I claim the foregoing as my own I affix my signaturei'n. presence .of two witnesses.

DAVID C. GUTTRIDGE.

Witnesses:

JAMES M. HAMTILL, CHARLES HAUGH.

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