US351041A - Hinges in cast metal plates - Google Patents

Description

(No Model.) 2 She eeeeeeeee 1.

N. BURDICK.

- MEANS FOR FORMING HINGES IN MST METAL PLATES. No. 351.041. Patented Oct. 19, 1886.

(No Model.) 2 SheetsSheet 2.

N. BURDIOK. MEANS FOR FORMING HINGBS IN CAST METAL PLATES. No. 351.041. Patented Oct. 19, 1886.

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UNITED STATES NORMAN BUBDIGK, OF

ALBANY, XEW' YOR K.

MEANS FOR FORMING HINGES lN CAST-METAL PLATES.

. SPECIFICATION forming part of Letters Patent No. 351,031, dated October 19, 1886.

Application filed April 17, 1886.

Tea whom. it may concern.-

Be it known that I, NORMAN BURDICK, a citizen of the United States, residing at Albany, in the county of Albany and State of New York, haveinvented a new and Improved Means for Forming Hinges in Cast Metal Plates, of which the following is a specification.

My invention relates to a new and improved means for forming hinges of cast-metal plates in which one of the knuckles will be produced with a fixed pintle and the other with a hole suitable to receive said pintle; and my invention consists in the means hereinafter described, and specificallyset forth inthc claims.

The objects of my invention are, first, to produce in castmetal plates without the use of core-prints in the patterns,and without the labor and expense of drilling knuckles and riveting pins with same, hinge-knuckles with fixed pins which will be uniformly the same inboth situation and relative position in the knuckles cast from the same patterns, and be therefore perfectly fitted for use with any one of the duplicate pin-holes made in the coacting knuckles of hinges cast from the same pattern; and, second, to produccin cast-metal plates without the use of core-prints and the expense and time of drilling, hinge-knuckles in which one of them will have apermanentlyfixed pin, while the other coacting knuckle will have a corresponding pin-hole produced by means of a tube which is suitably placed in the mold by the pattern and incorporated with the cast metal of the coacting knuckle when the cast is made. I attain these objects by the means illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1 is a perspective view of the pinholding hood, which can be employed for carrying my invention into practice. Fig. 2 is a perspective view of the pin. Fig. 3 is a plan view of hood and pin united. Fig. 4c is an elevation of the same with the hood shown in section. Fig. 5 is a plan view of the pattern with which the hood and pin are employed. Fig. 6 is a side elevation of the same. Fig. 7 is a plan View of pattern, hood, and pin arranged for molding. Fig. 8 is a sectional view taken transversely to the axis of the pin in Fig.

Serial No.199252. (No model.)

7. Fig. 9 is a sectional view of pattern and hood in place in the former and the pin in place in the hood. Fig. 10 is aview of pattern, hood, and pin in the mold. Fig. 11 isasectional view of the same, showing the pin in place at the parting-line of the halves of the mold. Fig. 12 is aview of the mold with the pattern withdrawn and the hood and pin in place ready for receiving the molten metal. Fig. 13 is a view in the transverse of the same.

Fig. 14 is a plan view of the product. Fig. 15 is a plan view of the product-th'at is, the

plate with knuckle having a fixed pin and a plate having a coacting knuckle with a pinhole for pivoting on the pin; and Fig. 16 is a sectional view of two coacting knuckles of a hinge of two cast plates in which one of the knuckles has with it the fixed pin and the other a pin-hole produced by molding and incorporation of a sheet-metal pin-tube in the knuckle when the cast is made.

The same letters of reference refer to like parts throughout the several views.

In the drawings, A represents the pin-holding hood, which is made of thin sheet metal, preferably of sheet-tin bent in form, as shown, in which the top portion, a, is connected with the angular sides (ta, and the angular side portions, a a, are cast perforated relatively at the same points and with holes which will nicely receive the pin to be the fixed pin of the hinge.

B is the hinge-pin, having its body I) corresponding with the perforations (t a in the side pieces of the hood A, and having on one of its ends the head If, provided with a square shoulder, as shown. This pin B is used in connection with hood A by having its cylindrical body I) passed through both perforations c a of the hood, with the shoulder I)" of head bagainst the outer surface of one of the side pieces, a, of the hood, as shown in Figs. 3 and 4.

G is the pattern of a door or equivalent plate, and O is the knuckle portion of this pattern. This knuckle portion 0 of the pattern is made with a width corresponding with the length of the top portion, a, ofthe hood A, from one side portion a to the other, as shown in Fig. 7. In this knuckle portion (lis made the recess or notch 0, Figs. 5 and 6. This notch is madein form and depth to correspond with the outside with shouldered seats e-e, which are sunken below the plane of the upper surface of knuckle Cto a depth about equal to the thickness of the sheet metal of the hood A, as shown in Figs. 6 and 8. The edges at the ends of the recess a are provided with the vertical shouldered seats e e, which are sunken below the plane of the side surfaces of the knuckle portion as shown in Fig. 5, to a depth corresponding with the thickness of side portions, to a, of hood A. These shouldered seats 6 c and c e are made with such an outline as to correspond with the outline of edges of the several portions of the hood, so that the latter will nicely fit in the said shouldered seats and be held from shifting in any direction in relation to the recess 0 on the knuckle C.

When the hood A, holding the pin B in position, as shown in Figs. 3 and 4, is set in place in the knuckle portion 0 of the pattern, with the edges all around of the portions a and a a of this hood in holding with the shouldered seats 6 ea c bounding theedges of the recess or notch c, the pin B will be accurately held in line with the axis ofsaid knuckle, as shown in Figs. 7 and 9, and the portion of the pin contained within the span of the hood will be held clear of contact with the pattern, as shown in Figs. 8 and 9, and the bearings of the several edges of the portions of the hood on the shoul-v dered seats bounding the recess in the knuckle will operate to hold the pin in the one and same true situation and position as when first set, as shown in Figs. 7 and 9.

Pattern G is to be molded from the nowel or drag part of the flask in the usual manner, the pin-holding hood and its combined pin B having been previously set in place in the shouldered seats 6 e e e,bounding the recess or notch in the knuckle of the pattern, as illustrated in Figs. 7, 8, and 9. The sand will be riddled on the pattern, and the molding will be proceeded with in the manner generally practiced by the trade. In the molding no sand will enter the recess 0 of the knuckle of the pattern, as the sides and top of the hood andthe head and body of pin B will operate to close all portions of the recess against entrance of the sand. When the molding is completed, the flasks will be together inverted and brought into position from that shown in Figs. 10 and 11 to that shown in Figs 12 and 13, with the drag side D down and cope side D uppermost, when the cope will be lifted, and pattern 0, with its notched knuckle O, drawn from the drag, leaving the hood A and pin B remaining in the mold, the former in an inverted position, as

I illustrated in Figs. 12 and 13, so that when the two parts of the mold are joined preparatory to pouring the metal the pin B will be in its true and designed situation and position in the mold E, the sand around the portion of pin B outside of hood A, and at the outside of the portions a a a of the hood, holding both the hood and the pin from shifting in the mold. Themolten metal will then be poured into the mold in the usual manner, and will flow around the portion of the pin contained within the span of the hood, and also fill the mold and produce the cast plate with knuckle H, having the pin B held tightly by the cast metal around the portion of the same between the sides a a of the hood, as illustratedin Fig. 16.

In Figs. 15 and 16 the product of this new means of forming knuckles having fiXed pins for hinges of cast plates is shown to be used with a coacting knuckle, H, east with a doorframe or equivalent plate, and in Fig. 16 the knuckle H is shown to have its pin-hole it pro duced by means of the sheet-metal pin-tube or pin-hole shell S, illustrated and described in Letters Patent No. 317 ,498, granted to myself and James A. Sandford, May 12, 1885. By using the product of this invention with the product of the invention described in the above 7 mentioned patent I am enabled to produce with the doors and frames of doors the coacting knuckles of hinges, in which the knuckle of the hinge on the door will have in it a firmly'fixed pin, which will be in a position both trueand accurate for nicely hinging with the knuckle on the door-frame, having its pin-hole produced by the means described and illustrated in the above-mentioned patent.

It will be readily understood after an examination of the Letters Patent above referred to that when the notches or recesses in the.

patterns of both the door and door-frame are made the same in form and size in their respective knuckle portions, and when there are used in both cases hoods which are substantially the same in size and form with thehood used with the door-knuckle having holes for receiving the pin, provided with perforations for the pin, located relatively in the hood as is the tube or pin-hole shell in the hood used with the door-frame knuckle, the pin of the one and hole in the other of the knuckles will be in correspondence as to relative location and position in the respective knuckles of the hinges so produced.

By my above-described improved means of producing knuckles of hinges with fixed pins I am enabled to duplicate in cast plates cast from the same pattern an exactly-corresponding knuckle and affixed pin, which will be suitable to be used with any one of a number of duplicate plates having knuckles with pinholes produced by the process dcscribed in the patent before mentioned.

In Fig. let the shouldered end of the pin is shown to be provided with the screw-threaded stem 12 by means of which the ornamental knob-head B is secured to the fixed pin B.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. The pin B, provided with shoulder 6 and the sheet-metal hood A, holding said pin,

whereby said pin will be suitably adjusted within the hinge-knuckle pattern, of the pin in relation to a hinge-knuckle pattern by the B, provided with shoulder b, and the hood A, edge margins of the several portions of the having correspondence with said shoulderhood holding with shouldered seats made at seats and holding said pin, substantially as 5 the edges of the recess in the hinge-knuckle and for the purposes set forth.

pattern, and will be supported within the mold T T when the pattern is withdrawn from the sand, 3 ORMAL substantially as and for the purposes set forth. Vitnesses: 2. The combination, with the shoulder-seats ALEX. SELKIRK, 10 e e at the respective edges of a recess made ARTHUR BUGDEN.

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