US1461728A - Method of forming hairpins - Google Patents

Description

July X7, 1923.

M. A. FISHEL METHOD OF FORMING HAIRPINS Filed June 11, 1921 I Patented July 17, 1923.

UNITED'STATES PATENT oFricE.

' MILTON A. FISHEL, or NEW. YORK, n. Y.

METHOD OF FORMING HAIRPINS.

Applicationfiled June 11, 1921.

To all whom it may concern:

Be it known that I, MILTON A. FISHEL, a citizen of theUnited States, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Methods of Forming Hairpins, of which the following is a specification.

This invention relates to a method of forming ornamental hair pins in which the yoke is constructed frommetal by blanking, forming and stamping processes. 1

An important object of the invention is to provide a method by which hair pins of the above mentioned type may be cheaply and rapidly produced in quantities, such hair pins having'certain desired characteristics over similar hair pins produced by. dissimilar and more expensive methods than that which I employ.

Other objects and advantages of the invention will become apparent from the following specification taken in connection with the accompanying drawings in which- Figure 1 is a face view of a blank from which the yoke of a hair pin is formed in accordance with my invention. I

Figure 2 is a view similar to that of Figure 1, showing the blank as having'undergone a stamping operation by which a desired ornamental design is produced.

. Figure 3 is a somewhat enlarged view of the adjacent ends of the yoke in section showing the prong receiving pockets. formed therein. j I

Figure dis a face view of an assembled pin constructed in accordance with my invention.

Figure 5 is a face view of. a blank from which the yoke of a hair pin is formed in accordance with a modified form of my invention. r Figure 6 is an edge elevation. showing one of the ends of the blank upset or shapedto form a prong-receiving element.- j

Figure 7 is a face. v ew of the'blank having-undergone a stamping operation; by which a desired ornamental designmay be produced. I

Figure 8 is asomewhat enlarged view of th a j ent nds of the yoke in sectieii' by changing or Serial No. 176,798."

showing the prong-receiving pockets formed therein. i

Figure 9 is a face view of the assembled pin constructed in accordance with the modified form of my invention. I g g In manufacturing a hair pin, such as is indicated as a whole by the numeral 5 and shown in Figure 4, I employ a blank 6, formed from suitable metal, the, blank being of substantially a U-shape and having its adjacent ends 7 somewhat elongated and preferably round in cross-section,

The next step in the manufacturing process embodying my invention isto place the blank 6 in a suitable die press and subjectthe same to a stamping operation in order to produce upon theface of the blank 6 and upon the faces of the adjacent ends 7 thereof the desired ornamental designs, shown respectively, at 10 and 11, representing an engraved finish. It is obvious that the design produced as above described, is determined by the particular die employed and that the design may be varied or changed as desired altering the form of thedie employed- After having subjected the blank 6 to a stamping operation as above described, its adjacent ends 7 are bored as shownin Figure 3 to provide prong-receiving pockets 12. By the operationsthus far described the blank 6 is transformed into a yoke 13 shown in Figure tto which the prongs 14, formed of any suitable material such as celluloid, bone or metal, are secured. In order to secure the prongs 14 to theyoke 13 as shown the ends thereof are inserted into the prongreceiving pockets 12, the diameters of which are substantiallyfequal to the diameters of the entering ends of the prongs, and are locked therein by means of pins 15 passed through the ends'of the yoke'13' and the ends ofthe prongs 14. I In manufacturing by a method similar to that hereinbefore described ahair pin, such as is indicated as a'whole by the numeral 16 and shown in Figure 9, I employ a blank 17 formed from suitable met-al,'the blank be- 1 ing of substantially U-shape and having its by reason of the fact that the blank is formed with a surplus of metal at its ends, the surplus of metal being, as will hereinafter more readily appear, upset or shaped to provide prong-receiving elements.

After havingformed theblank17 of the required shape, the blank being. oi? substantially a U-shape, as shown in Figure 5, it is then subjected to an upsetting process by means of which the adjacent the blank 17 are upset or enlarged to form prong-receiving elements 19 indicated in Figure 6, the prong-receiving elements. 19 having a thickness when formed as above mentioned, substantially greater. than the thickness of the main body of the blank '17; Having upset the surplus: metal: at the ends 18 of theblankl? warm the prongreceiving elements; 19,. the: blank. 17 is subjiectedto a shapingprocess, in, order that the prong-receiving elements 19 .may" be rendered roundin cross-section, and in order that: they may be finished to present a smooth surface.

After having shaped the ends 18 of the blank 17 to the: desired crossssection to form the prong-receiving element-s 19', the blank is then placed in a suitable die press, in order that the face. 20 of the blank 17 may be stamped to produce thereupon an orna mental design, such as is. indicated by the numeral 21, resembling an engraved finish. It may be remarked here that the ornamental design, such as is indicated by the numeral 21, may be formed upon the entire face 20 of the blank 17, or only on a portion thereof, and that the design may be changed or varied as desired by changing or altering the'dies which are employed to produce the design.

By carrying out the operations thus far described, theblank 17, is transformed, so to speak, from a blank of raw material into a yoke 22, the adjacent ends or prong-re ceiving elements 19 of which are bored to provide prong-receiving pockets 23 adapted to receive therein the ends of prongs 24, which may be formed of metal, celluloid, bone, or any other suitable material. In assembling the pin 16, shown in Figure 9, the ends of the prongs 2a are inserted into the prong-receiving pockets 23, the ends of the prongs 24: having a diameter substantially equal to the diameter of the prongreceiving pockets 23, so as to provide a relatively close fit or jointure between the prongs 24 and the inner walls of the prongreceiving pockets 23, whereupon suitable pins 25 are passed through the ends of the prongs 24 and the ends of the prong-receiving elements 19. Y

a It is apparent from a'study of the drawings in connection with the above "description, that by employing themethod embodying my invention, a hair pin manufactured ends 18 of in accordance with my invention maybe produced in quantity lots at a comparatively low cost; and that such a pin may be rendered particularly attractive in appearance and sufficiently strong to meet all of the requirements. usually demanded of such an article.

It is to be understood that certain detail departures may be made from the various steps incident to my process without departing from the spirit of the invention or the scope of the subjoined claims.

I claim: 1

v 1. The method of manufacturing a hair pin which consists in forming a substantially U-shaped blank "having-at its adjacentfends a surplus amount of metal, upsetting the surplus amount of receiving elements, ing pockets within the prongereceivingfelements, and securing within said" pockets a pair of prongs.

2. The method of manufacturing a hair pin having a yoke and a, pair of prongs; ecured thereto, which consists in forming a substantially u-shaped blank, upsetting the adjacent ends of said blank to; provide prong-receiving elements, forming prongreceiving pockets within said prong-receiving' elements, and securinga pair of prongs within said prong-receiving pockets.

3. The method of manufacturing anhair pm, which consists in forming a substantially U-shaped blank having at its adjacent ends a surplus amount of metal of a thickness substantially equal to the body of the blank, upsetting the surplus amount of metal to render the blank thickest at its ends, thereby forming prong receiving elements, forming prong-receiving pockets Within. the prong receiving elements, and securing within said pockets a pair ofprongs.

4. The method of manufacturing a hair pin, comprising a yoke and a pair of prongs, which consists in forming a substantially U-shaped blank, having at its adjacent end s a surplus amount o1. metal, upsetting the surplus amount of metal to provide prongreceiving elements, subjecting the blank, together with its prong-receiving elements, to a pressing operation, whereby the face of the blank and the faces of the prong-receiving elements are depressed to provide thereupon an ornamental design, forming prong-receiving pockets within the rougreceiving' elements, and securing with nsaigl pockets a pair of prongs.

5. The method of manufacturing a hair pin, comprisinga yoke and a pair Qfpmn which consists in forming a substantial l U-shap'ed' blank, having at its adjacenten a surplus amount of metal, upsetting the surplus amount oflmetal "to provide prongreceiving elements, subjecting the'blank, to-

metal to provide prngproviding prong-receivcomprising a yoke and a pair'of pron-gs,

gether with its prong-receiving elements, to a pressing operation, whereby the face of the blank and the faces of the prong-receiving elements are depressed to provide 5 thereupon an ornamental design, forming prong-reeeivingpockets within the prongreeeiving elements, inserting Within said pockets the ends of a pair. of prongs," and lockingthe ends of said prongs within said pockets. 1

In testimony whereof, I have aflixed, my signature to this specification;

MILTON A. FISHEL

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