US1467244A - Process of making hinges - Google Patents

Description

Sept. 4, 1923. 1,467,244

P. FRANTZ PROCESS OF MAKING HINGES Filed Dec. 5. 1921 Patented Sept. 4, 1923.

ETER FRANTZ,, on STERLING, ILLINOIS, "Ass enoa 'ro f meant rnan'rz' MANUFACTURING COMPANY, or STERLING, ILLINOIS, A ooaronarron oI' LLInoIs.

reoenss or MA ING nrnens.

App1ieation filed December 5, 1921. Serial No. 520,060.

To aZZwhom it may concern:

Be it known that I, PETER FRANTZ, a citizen of the United States, and aresident of Sterling, county of Whiteside, State of 5 Illinois, have invented a certain new and useful Improvement in Processes of Making Hinges, of which the'following is'a specification; i

This invention relates to the manufacture of hinges for doors or for other purposes, and it relates more particularly to hinges of that particular form in which two plates are held together by a pintle, with pintle bearings forming a knuckle joint between 1 is provided with a space formed to receive the other plate.

Generally stated, therefore, the object of the invention is to provide an improved method of blanking out the hinge plates from sheet metal," in a manner that not only insures against waste, but also in a manner that renders the hinge satisfactory in use, as will hereinafter more fully appear.

To these and other useful ends the invention consists in matters hereinafter set forth and clainiedand shown in the accompanying drawings in whlch:

Figure 1 is a plan of a strip of sheet metal showing diagrammatically the method of blanking out the hinge plates by a method or process involving the principles of the invention. 7

Figure 2 is a plan ofan ordinary so-called T-hinge made in accordance with the invention.

Figure 3 is a perspective of one of the the two end portions 2 of two different plates. The holesfi are punched'at the same the two plates, whereby at least one plate this method, as shown, each space 5 is formed by cutting out metal "enough to form time that the plates arepunched out from the long strip of sheet metal, it being observed that this strip travels in'the direction indicated by-the arrow, so that the portions '2 extendcrosswise or at right angles to the lengthzof said strip. ,In this way, therefore, it will be seenthatno metal is wasted, as the 6 spaces 5 in the plate are formed by cutting out enough metal to form the portions 2 of said plates. v f

The platesthus formed can be combined with other plates in any suitable or desired manner, in order to form hinges of the re quired character. As shown in Figure 2, the long plate 6 is formed with a pintle bearing 7 .to fit in the space 5 of the plate 1, and a pintle of anysuitable character is in- 7. serted in the bearings 3 and 7 to hold the plates together, thus forming what is ordinarily called a T -hinge. Obviously,how-

ever, the hinges formed may be of any suit able size or'style,-but in any event, and

. regardless ofthe design employed, the pintle hearing 7 is equal in length to the combined, length of the bearings 3, so that the knuckle of the hinge has the metal thereof divided equally between the two plates. Thus the feature of having the combined width of the portions 2 equal to the width of the space 5, in blanking out the plates, not only tends to insure against unnecessary'waste in the cutting of the sheet metal, but also en-r sures or brings; about some advantageous and desirable results in the use'of the hinge, as well'as in, the making of hinges of diiferent sizes. FVhen the combined width of the pertions 2 is equal to the space 5, hinges'of different sizes can be made by simply using sheet metal strips of different widths, and bycut-ting each sheet in the manner shown in Figure 1, whereby plates of different sizes will be made or produced. 9

It will be seen that the articles formed during the blanking operation have all their edges formed on straight lines extending at right angles to each other so that each article is substantially rectangular except for 9 the space 5 formed in one side edge thereof;

' What I claim as my invention is:

1; The process of making a 'hinge,..com-

prising the blanking and cutting of sheet metal to form plates each having a space' occupied during the blanking operation by the end portions of two other plates, so that the metal cut out to form the space of each plate is utilized to form'the end portions of other plates, thereby to prevent waste in the cutting of the metal.

2. A process for making hinges of the kind comprising a plate having pintle bearings spaced apart a distance equal to the combined length of said bearings, so that each bearing is equal to one-half of the width of said space, and another plate having a pintle bearing adapted to fit in said space, whereby said last mentioned pintle bearing; is equal in length to the combined length of said first mentioned pintle bearings, comprising the formation of saidfirst mentioned pintle bearings from metal cut away to form a space between two similar bearings of another plate of the same size and form. thereby to prevent waste in the cutting of the metal from which the plates of this kind are made.

.3; The process of blanking out sheet metal articles, each article having two end portions spaced apart a distance equal to the combined width of said end portions, comprising the formation of said end portions from the metal cut away to form the space of each plate, whereby no Waste metal occurs anywhere between the plates during the blanking 'operation.

4. A process as specified in claim 3, in which said articles are formed with all their edges on straight lines at right angles to each other. p p

5. A process as specified in claim 3, in

which the sheet metal is in the form of a long strip having said end portions extending at right angles to the 'leng'th'thereof PETER FRAN-TZ'.

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