US488590A - Mold for casting can-openers - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

W.. E. WARNER. MOLDIOR CASTING CAN OPENERS.

No; 488,590. v Patented Dec. 27, 1892.-

WITNESSES- 2 Sheets-Sheet '2.

W. WARNER. MOLD FOR CASTING CAN OPENERS.

No. 488,590. Patented Dec. 27, 1892.

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UNITED STATES PATENT -FFICE.

WARREN EUGENE WARNER, OF ROCHESTER, NEW YORK.

MOLD FOR CASTING CAN-OPENERS.

SPECIFICATION forming part of Letters Patent No. 488,593, dated December 27, 1892.

- Application filed November 5, 1891. .Serial No. 410,983. (No model.)

To all whom it may concern:

Be it known that I, WARREN EUGENE WARNER, of Rochester,in the county of Monroe and State of New York, have invented certain new and useful Improvements in Molds Y for Casting Can-Openers; and I do herebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

Myinvention relates to an improvement in molds for casting can openers; and it consists in the construction of the mold, which will be fully described hereinafter and particularly referred to in the claim.

The object of my invention is to cast a bandle directly to a blade for can openers, and at the same time cast a fulcrum plate which is pivotally connected to the blade in front of the handle, which does away with the necessity of rivets to connect these parts as heretofore used; which enables me to produce these articles much cheaper, and which is a great saving in time, and therefore in expense to the manufacturer.

In the drawingsz-Figure 1 is a side view of a can opener which embodies my invention, showing it placed in one side of the mold. Fig. 2 is a similar view showing a modification in the construction of the mold. Fig. 3 is a detached view of the blade. Fig. 4, is a vertical section of the mold before the molten metal is poured therein, showing the blade in position. Fig. 5, is a perspective view of the casting and sprue.

A, indicates a mold which is made of sand or of any other suitable or desirable substance, and which is provided with a main gate B, and an auxiliary gate O which extends outward therefrom preferably at a right angle as shown. Extending laterally from this auxiliary gate 0 near its inner end, and near the main gate B, is a small gate D, and at the outer end of the gate 0 is another small gate E. The small gate D at the inner end of the auxiliary gate 0, communicates with a cavity F made in the mold, and which cavity is the shape of the fulcrum plate F as shown. This cavity is formed with the recesses G, which extend upon opposite sides of the steel blade I and form the pivotal ears G of the fulcrum plate F The small gate E, at the outer end of the auxiliary gate 0, communicates with a cavity H in the form or shape of the handle H of the opener as shown.

In operation, the steel or other blade I, is coated with oil and sand from the point M outward, and is placed in the mold at the proper place, so that the handle will be cast around its inner end, and the fulcrum plate around the blade as shown. As shown in Fig. 3 the blade is provided with an opening N, between its ends, which opening is between the fulcrum ears G of the fulcrum plate F and another opening or perforation P, which is inside of the inner end of thehandle. Metal run into the main gate B passes through the auxiliary gate 0, and the small gates D, and E, to the fulcrum plate and handle cavities, and also through the perforations N and P. As the bladeI isnotoiled where it passes into the handle cavity, the handle is cast tightly around it, and the metal runs through the opening P, holding the inner end of the blade rigidly and firmly in place. The metal also passes through the perforation N, between the ears G and connects them and forms a pivotal point or fulcrum for the blade upon the plate F As the blade is oiled and sanded from the point M, the fulcrum plate is not cast to the blade, nor is the metal cast tightly in the perforation N. By this means, the sand rattles off of the blade when it is removed from the mold, and the blade is pivotally connected to the fulcrum plate without any riveting. It is then only necessary to cut the metal which is cast in the gates E, and D, by a blow with a chisel, when the article is finished without any riveting of any kind. While I here show only one opener being cast, it will be readily understood that as many as desired may be extended from opposite sides of the main gate B, for the purpose of casting a large number at one time. i

In Fig. 2, the blade I, is placed in the mold in the same manner shown in Fig. 1, but instead of having two'gates extending from the auxiliary gate 0, I have only one, and then a gate Q, extending from the rear end of the cavity for the fulcrum plate to that for the handle. and result are the same,

In all other respects the operation From the above description, it will be seen A mold for casting can openers having a that I am enabled to reduce the cost of manuhandle cavity, a fulcrum plate cavity, a blade facturing' articles of this character considercavity extending into the handle cavity and I5 ably, which is a big saving to the manufacthrough the fulcrum plate cavity, and suit- 5 turer, Where they are manufactured in large able gates leading to the handle and plate quantities. A cavities substantially as specified.

The opener proper is not my invention, and In testimony whereof I affix my signature in I therefore make no claim to it, but only to presence of two Witnesses.

the method of casting the same, and to the WARREN EUGENE WARNER. 1o mold used. Witnesses:

Having thus described my invention, I N. R. STREETER,

claim I O. F. GARFIELD.

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