US267809A - thomas - Google Patents

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US267809A
US267809A US267809DA US267809A US 267809 A US267809 A US 267809A US 267809D A US267809D A US 267809DA US 267809 A US267809 A US 267809A
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Prior art keywords
blanks
blank
end portions
hinge
bending
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/38—Making other particular articles locksmith's goods, e.g. handles
    • B21D53/40—Making other particular articles locksmith's goods, e.g. handles hinges, e.g. door hinge plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/24—Hinge making or assembling

Definitions

  • My improvements consist essentially in cutting or punching the blanks from sheet metal with the end portions diverging or extending away from each other; in then. bending said blanks to bring the end portions thereof into positions parallel with each other, and in finally bending the extremities to form the ears or sockets and uniting the two parts by a pintle or pin.
  • Figurelr presents a plan of the sheet-metal blank prior to its being bent;
  • Fig. 2 represents a similar view of the said blank after being bent transversely of its width, and
  • Fig. 3 represents a plan view of the completed hinge.
  • the blank for forming the leaf or plate of the hinge is first cut or punched from sheet metal in the form shown in Fig. 1, in which the end portions, A, are diverging or extend away from each other, preferably at an obtuse angle to the central portion, A, and when out or punched in this form it is obvious that the blank can be cut from the metal side by side without waste, the two opposite sides of the blank being of the same outline.
  • the end portions, A arejoined to thecentralportion,A, by
  • I preferably form a similar bend b at the middle of the central portion, A,and when this is done the parts ofthe central portion, A, which are upon each side of the bend b, are bent at an obtuse angle to each other, as shown in Fig. 3.
  • This central bend, b is, however, not absolutely necessary; but it has the additional advantage of imparting to the hinge an ornamental configuration.
  • the bending of the blanks transversely may he done by means of a die provided with cheeks or side pieces, inclined so as to bend the end portions inward toward each other, and a pusher corresponding in shape with the outline of the inneredge of the finished blanks.
  • the blanks are forced forward by the pusher, first bending them at the middle bend or curve, and afterward bending the end portions into a position parallel with each other.
  • the blanks, bent into the form represented in Fig. 2, have the ends of the portions A shouldered at s, so as to engage properly to form a hinge, and bent over so as to form ears or sockets c forthe reception of the pintle oI hinge-pin, d,- and I may provide the hinge with the ordinary spiral spring, 6, for autoinai ically closing the door or other article to which the hinge is applied.
  • I may employ blanks in which the end portions, A, extend parallel with the cential portion, A, and are tangential to the bends or curves a.

Description

(No Model.)
G. G. THOMAS. ART OF MAKING HINGES.
No; 267,809. Patented Nov. 21, 1882.
%- 6' c lllllllllflllllll Mbeasses A UNITED STATES PATENT OFFICE, f
GEORGE G. THOMAS, OF NEW YORK, N.
ART OF MAKING HINGES.
SPECIFICATION forming part of Letters Patent No. 267,09, dated November 21, 1882.
Application filed March 16, 1880. (No model.)
formed.
My improvements consist essentially in cutting or punching the blanks from sheet metal with the end portions diverging or extending away from each other; in then. bending said blanks to bring the end portions thereof into positions parallel with each other, and in finally bending the extremities to form the ears or sockets and uniting the two parts by a pintle or pin.
In the accompanyingdrawings,Figurelr presents a plan of the sheet-metal blank prior to its being bent; Fig. 2 represents a similar view of the said blank after being bent transversely of its width, and Fig. 3 represents a plan view of the completed hinge.
Similar letters of reference deslgnate corresponding parts in all the figures.
The blank for forming the leaf or plate of the hinge is first cut or punched from sheet metal in the form shown in Fig. 1, in which the end portions, A, are diverging or extend away from each other, preferably at an obtuse angle to the central portion, A, and when out or punched in this form it is obvious that the blank can be cut from the metal side by side without waste, the two opposite sides of the blank being of the same outline. The end portions, A, arejoined to thecentralportion,A, by
bends or curves at, so shaped that when pressure is properly applied to the blank it will yield at the said bends or curves and allow the end portions,A, to bend into positions parallel with each other, as shown clearly in Fig 2. In
order to obviate the bending of the metal too much at thebends a, I preferably form a similar bend b at the middle of the central portion, A,and when this is done the parts ofthe central portion, A, which are upon each side of the bend b, are bent at an obtuse angle to each other, as shown in Fig. 3. This central bend, b, is, however, not absolutely necessary; but it has the additional advantage of imparting to the hinge an ornamental configuration.
The bending of the blanks transversely may he done by means of a die provided with cheeks or side pieces, inclined so as to bend the end portions inward toward each other, and a pusher corresponding in shape with the outline of the inneredge of the finished blanks. The blanks are forced forward by the pusher, first bending them at the middle bend or curve, and afterward bending the end portions into a position parallel with each other.
The blanks, bent into the form represented in Fig. 2, have the ends of the portions A shouldered at s, so as to engage properly to form a hinge, and bent over so as to form ears or sockets c forthe reception of the pintle oI hinge-pin, d,- and I may provide the hinge with the ordinary spiral spring, 6, for autoinai ically closing the door or other article to which the hinge is applied.
It is obvious that blanks of the form shown in Fig.1 maybe cut with much less waste or metal than it cut out in the form of the finished bent blank shown in Fig. 2, and as such hinges are usually made of sheet-brass, this saving of material lessens the cost of manul'acturing, and enables hinges to be produced at a cheaper rate, thereby proving a. benefit to the manufacturer and the purchaser.
In lieu of the blank shown in Fig. 1, I may employ blanks in which the end portions, A, extend parallel with the cential portion, A, and are tangential to the bends or curves a.
What I claim as inyinvention, and desire to secure by Letters Patent, is-
1. The improvement in the art of making hinges of sheet metal-s-namely, cutting or parts by a pintle 01' pin-substantially as set forth.
or ears, and uniting the two parts by a pintle or pin, substantially as set forth.
GEO. O. THOMAS.
2. The improvement in the art of making Witnesses CHAS. S. LEWIS, EDWIN H. BROWN.
bending the extremities to form the sockets 1
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070150338A1 (en) * 2005-12-22 2007-06-28 Dale Malik Systems, methods and computer programs for enabling interactive viewer control of advertising content

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070150338A1 (en) * 2005-12-22 2007-06-28 Dale Malik Systems, methods and computer programs for enabling interactive viewer control of advertising content

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