US1098928A

US1098928A - Method of making sheet-metal hames.

Info

Publication number: US1098928A
Application number: US71145812A
Authority: US
Inventors: Charles L Wiedrich
Original assignee: U S HAME Co
Current assignee: U S HAME Co
Priority date: 1912-07-25
Filing date: 1912-07-25
Publication date: 1914-06-02
Anticipated expiration: 1931-06-02

Description

I %fve3.s In 06/? 5 r 0. L. WIBDRIGH. METHUD OF MAKING SHEET METAL HAMES.

APPLIGATIOK IILED JULY 25, 1912. 1,098,928, Patented June 2, 1914.

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COLUMBIA PLANOURAPH Bil-,WASXjINQTON D e G. L. WIEDRIOH. METHOD 0; MAKING SHEET METAL HAMES.

APPLIUQATION FILED JULY 25, 1912. 1,098,928, Patented June 2, 1914.

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7792 2766565. Q 17706172 291. M4, ff/xumz m a; 7%M jfz farne a UNITED STATES PATENT OFFICE.

CHARLES L. WIEIDRICH, OF BUFFALO, NEW YORK, ASSIGNOR TO U. S. HAME COMPANY, OF BUFFALO, NEW YORK.

METHOD OF MAKING SHEET-METAL HAMES.

Specification of Letters Patent.

Patented June 2, 1914.

Application filed July 25, 1912. Serial No. 711,458.

To all whom it may concern:

Be it known that 1, CHARLES L. Wrnpnron, a citizen of the United States, residing at Bufialo, in the county of Erie and State of New York, have invented a new and useful Improvement in Methods of Making Sheet- Metal Hames, of which the following is a specification.

This invention has reference more particularly to sheet metal hames of the type in which the hame is formed from a single piece or blank of sheet metal, and the ob ject of this invention is to improve, simplify and cheapen the process of manufacture and construction of hames of this type, and to produce a neat appearing, strong and desirable hame which will resemble a wooden hame in size,weight and general appearance but will be much stronger and more durable and can be more economically manufactured.

In the accompanying drawings, consisting of two sheets: Figure 1 is a plan view of the metal blank from which the hame embodying the invention is formed. Fig. 2 is a similar view thereof after the holes for the wear leather and the beads or corrugations for the outer face of the hame have been stamped therein. Fig. 3 is a perspective view of the blank bent into U-shape in crosssection by the first forming operation. Fig. i is an enlarged cross-section thereof in line 4-4, Fig. 8. Fig. 5 is a perspective view of the wooden core for the hame. Fig. 6 is a plan view of the hame showing the edges of the blank partially bent over the wooden core by the second operation. Fig. 7 is an enlarged cross-section thereof on line 77, Fig. 6. Fig. 8 is a view similar to Fig. 6 showing the edges of the blank closed upon the core by the third operation. Fig. 9 is an enlarged cross-section thereof in line 9-9, Fig. 8. Fig. 10 isan enlarged cross section in line 10-10, Fig. 8. Fig. 11 is a longitudinal sectional View through the die for bending the hame lengthwise, showing the hame in rear elevation. Fig. 12 is a front elevation of the completed hame. Fig. 18 is a fragmentary longitudinal section through the hame strap attachment. Fig. 14: is a cross-section in line let-14, Fig. 12.

Like reference characters refer to like parts in the several figures.

In general terms the hame of this invention consists of a hollow sheet metal shell or body which contains a solid core of wood or other suitable material extending substantlally throughout its length which fills the shell conforming to its shape. The shell is formed from a single piece or blank of sheet metal, which by suitable dies in several successive operations, is shaped to embrace the wooden core and to conform to the usual shape of a Wooden hame.

A represents a flat piece or blank of sheet metal from which the hame is formed. This blank is of the form shown in Fig. 1, being of somewhat greater width in its central portion and having curved side edges which taper slightly toward their opposite ends, one end of the blank being provided with a lateral ear or extension a. In this blank, while still fiat, are stamped holes a a for the tacks or screws which secure the usual wear leather to the hame, and beads or corrugations a a which extend lengthwise of the blank, substantially parallel with its side edges, and converge at their opposite ends to meet in points at a short distance from the opposite ends of the hame. When the blank is formed into a hame, these corrugations serve to add materially to the appearance of the outer or front face of the hame, breaking the smooth contour of this outer face and giving it the appearance of being provided with a central panel portion. These corrugations also serve to somewhat stiffen the outer face of the hame.

The blank A is placed between suitable dies and bent into trough or U-shape, as shown in Figs. 3 and 4. A core 13 is then laid in this U-shaped blank. This core, which is preferably of wood, is shaped in cross-section to conform to the cross-sectional shape of the hame when completed, and extend substantially the entire length of the blank. It is provided at intervals throughout its length with kerfs Z) which are cutin the side edges thereof so as to permit the core to be readily bent longitudinally in forming the hame as will be hereinafter explained. "With the core in place, the U-shaped blank is subjected to a further operation between suitable dies which bend the side edges of the blank toward each other to partially inclose the core as shown in Figs. 6 and 7; and after this is done, the blank so formed is subjected to a further operation between other suitable dies which bend the side edges of the blank down and completely close the same over the core, as shown in Figs. 8 and 9. The side edges of the blank will now abut against each other along the inner or rear face of the hame throughout substantially the entire length of the hame, and the ear or extension a of the blank will overlap the opposite side edge of the blank as shown in Fig. 10, being bent around the same by the forming dies so as to hold the side edges together at this end of the hame. This overlapping ear also forms an additional thickness of metal to which the loop for the hame strap can be secured as hereinafter explained. The blank with its core now has the form in cross-section of the completed hame but is straight throughout its length. It is now necessary to bend the blank and its core lengthwise to the shape of a completed hame and this is done by means of curved dies C C, which engage the blank adjacent to its opposite ends and bend the same into proper shape. The kerfs Z) in the side edges of the wooden core permit the core to be readily bent lengthwise by these dies with out splitting, breaking or unduly straining the material. This finishes the forming operations and the hame has now the shape of a wooden hame. It only remains for the trimmings to be attached thereto to form the completed hame. These trimmings may be of any suitable kind and in the hame shown, consist of the ball cap D which fits over the upper end of the hame, the top loop staple E with its loop ring 6, the line ring F, the draft staple Gr carrying the usual back strap ring H, and the wear leather I secured to the inner or rear face of the hame opposite to the draft staple. The line ring F and the draft staple G are seceured to the hame by studs 7" and g, respectively, which extend through the body of the hame and are riveted on the opposite side thereof. The top loop staple E is secured to the hame by screws 6 arranged in the opposite ends thereof, which extend through holes in the metal shell of the hame and engage in the wooden core thereof. The wear leather T is secured to the inner or rear face of the hame by suitable tacks or screws 2' which extend through he holes a and en gage in the wooden core. The holes for the studs and other fastening means for the trimmings can be quickly and easily punched in the hame by an ordinary press shear punch as the wooden core forms a backing for the metal so that no dies are required for this purpose. The trimmings can thus be easily attached to the hame.

The attachment employed for the hame strap in the construction shown, comprises a U-shaped attaching member K which straddles the end of the hame and is secured thereto by a. bolt or rivet K: which eX- tends transversely through the hame, passing through the overlapping ear a and the part which it overlaps. This double thickness of metal serves to hold the bolt securely in place and the bolt in turn secures the overlapping edges together and holds them in this position.

hile wood is preferred for forming the core of the hame, undoubtedly some other material could be found which would be suitable for this purpose and it is not intended that this invention should be limited to wood alone.

The core serves to stifi'en and strengthen the hame and facilitates the formation thereof and enables the hame to be shaped with a greater nicety. It also enables the trimmings to be more quickly and easily secured to the hame and affords a securing means for the tacks and screws which are used for attaching the wear leather and the top loop staple to the hame. By employing a straight core and bending the core after it has been placed in the blank, when the blank is bent, the expense of manufacture is materially lessened as the core, being straight, can be easily turned and the same dies operate in a single operation to bend the metal shell and the core.

I claim as my invention:

1. The method of making hames consisting in bending a sheet metal blank into substantially trough shaped form, placing in said trough shaped blank a permanent core having substantially the desired cross sectional shape and length of the finished hame, closing the trough shaped blank around said core so that the edges of the blank abut in a joint extending longitudinally of the flat back of the hame, and then bending said blank with its core, transversely of the flat back to give the desired curvature to the hame.

2. The method of making hames consisting in forming a sheet metal trough shaped blank with holes upon opposite sides thereof, placing in said blank a permanent core having a substantially fiat back, closing the trough shaped blank around said core so that the edges of the blank abut in a joint extending longitudinally of the flat back, and extending a draft appliance attaching means through said holes upon one side of said joint, through the core and through the holes upon the other side of said joint.

3. The method of making hames from a single piece of sheet metal which consists in bending the sheet metal blank into substantially straight trough shape, placing in said trough shaped blank a straight wooden core having substantially the desired cross sectional shape of the hame, with a flat back and provided between its ends with transverse kerfs, closing the trough shaped blank around said core so that the edges abut in a joint extending longitudinally of the flat back, and then bendin said blank with its core transversely of the flat back to give the desired curvature to the hame.

4:. The method of makin'ghames which consists in cutting a sheet metal blank with a laterally projecting edge portion at one end, bending the blank into substantially trough shape, placing in said trough shaped blank a permanent core having substantially the desired cross sectional area of the finished hame, bending the edges of the trough shaped blank down upon said core to inclose the same and in such a manner that the edges of the blank abut in a joint 15 extending longitudinally of the hame, with the said laterally projecting edge portion overlapping the opposite edge and partially embracing the end of the blank, securing a hame strap member to said end of the blank by means extending through the blank, the core and said overlapping portion, and bending said blank with its core to give the de sired curvature to the hame.

Witness my hand, this 12th day of July, 1912.

CHARLES L. WIEDRIOH.

Witnesses GILBERT T. SUGDEN, R. P. CARR.

Copies of this patent may be obtained for five cents each; by addressing the Commissioner of Iatents,

' Washington, D. G.