US2158078A - Fastener element and method of producing it - Google Patents

Fastener element and method of producing it Download PDF

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US2158078A
US2158078A US728555A US72855534A US2158078A US 2158078 A US2158078 A US 2158078A US 728555 A US728555 A US 728555A US 72855534 A US72855534 A US 72855534A US 2158078 A US2158078 A US 2158078A
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fastener
carrier
strips
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/46Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples
    • B21D53/50Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples metal slide-fastener parts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00Cutting
    • Y10S83/921Slide fastener cutting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/25Zipper or required component thereof
    • Y10T24/2539Interlocking surface constructed from plural elements in series
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/25Zipper or required component thereof
    • Y10T24/2539Interlocking surface constructed from plural elements in series
    • Y10T24/2557Interlocking surface constructed from plural elements in series having mounting portion with specific shape or structure
    • Y10T24/2559Interlocking surface constructed from plural elements in series having mounting portion with specific shape or structure including embracing jaws
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49782Method of mechanical manufacture of a slide fastener
    • Y10T29/49785Method of mechanical manufacture of a slide fastener of interlocking element
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49789Obtaining plural product pieces from unitary workpiece
    • Y10T29/49794Dividing on common outline

Description

May 16, 1939. T. s. MILLER 2,158,078

FASTENER ELEMENT AND METHOD OF PRODUCING IT Original Filed June 1, 1934 Patented May 16, 1939 PATENT OFFICE FAETENEE ELEMENT AND METHOD OF PRODUCING IT Thomas G. Miller, McDonald, Pa.

application June 1, 1934, Serial No. 728,555 mnewcd November 10, 1938 30 Claims.

This invention pertains to interlocking fastener elements and to methods of producing them.

In one aspect my invention deals with the production of fastener assemblies which may be employed to quickly associate and dissociate opposite and/or adjacent edges of somewhat flexible materials such as fabrics, rubbers, cloths,.leathers, weaves. etc.

In another aspect my invention is concerned with the quantity production of elements such as are suitable for employment as clasp or fasteners and/or such as may be used in connection withclasps or fasteners.

In view of the ever increasing popularity of socalled interlocking fasteners, the question of speeding-up and/or simplifying their production and/or assembly is of major importance.

And, it has been an object of my invention to devise new and effective procedure for the production of clasps or fasteners and other elements adapted to be employed in connection therewith.

Another object of my invention has been the provision of improved forms of fastener element relationships and/or forms of indhdduel elements.

A further object of my invention has been the provision of improved procedure for the forming and/r assembling of fastener elements.

These and many other objects of my invention will appear to those skilled in the art from the following description as considered in view of the accompanying drawing and the claims submitted, in which:

Figure 1 is a front perspective view of a longitudinal piece from which fastener elements may be provided, and illustrates a. procedure.

Fig. 2 is a view somewhat similar to that of Fig. 1, but showing a, formed fastener element.

Fig. 3 is a front perspective view in elevation showing a connected piece of elements.

Fig. 4 is a front perspective view in elevation showing a modified form of connected element piece.

Fig. 5 is a front view in elevation showing a partially formed element strip having a thickness corresponding to that of a finished element. This view illustrates a procedure for the production of elements.

illustrated in Fig. 5, may be assembled in a spaced (CL 2914B) relationship for grouped work in connection therewith.

Fig. 8 is a view somewhat similar to Figure 6, but omitting certain details of that figure and showing cords and carriers in an associated and 5 mounted relationship with respect to aligned elements of adjacent strips of the group.

Fig. 9 is a view partially in section and somewhat similar to Figure 6. but showing a. method of severing aplurality of aligned elements of ad- 10 iacent strips of the group.

Fig. 10 is a. front perspective view of an at least partially formed block-like piece of material from which separate strips. separate bars, and/or sepparste elements may be obtained. This view suggests procedures for the production of the elements.

Fig. 11 is a front perspective view somewhat similar to that of Figure 10, but showing a modifled form of element structure.

Fig. 12 is 9. front perspective view of an element strip taken from the piece of Fig. 11, and illustrates a step in a procedure; Figs. 1, 2, 3, and 4 may illustrate steps in other procedure as applied to Figs. 16 and ll.

Fig. 13 is a side view in elevation of a. movable cutting apparatus that may be employed to sever elements.

And, Fig. 14 is a i'ragmcntal plan view illustrating fastener elements of the type shown in Fig. 2 in place on a carrier assembly.

I have found, that for many purposes, and particularly for after-treating fastener elements and/or for mounting them upon suitable cords and carriers. that it is advantageous to, as long as possible or advisable, retain the individual elements in a connected relationship with respect to each other.

In Figs. 1 to 4, inclusive. I have shown new forms of elements and how they may be connected together to provide unitary, somewhat bar-like pieces.

I have developed a new and simplified form of fastener element 20 which has clamping legs or jaws 2i and the usual recess 22 terminating in an aperture 23. Interlocking portions lie adjacent the top edge of the element 20 and include on extending ledge 24 that inclines outwardly from a face thereof, and also, a. depression. 2! that inclines upwardly from an opposite face thereof. It should be noted that the slope or inclination of the portions -25 is exaggerated in the drawing for the purpose of clearer illustration.

Due to the simplicity of outline of the element 20, it may be very eifectively employed to close a pair of adjacent carriers 41 (see Fig. 14); it is very easily and simply produced by the very operation which severs the element from a bar or piece of adjacent elements I! (see Fig. 1).

In other words, I have made possible the production of individual fastener elements from bars and similar pieces without after-forming suitable interlocking portions thereon when severance has been accomplished. More particularly, I have made possible the forming of interlocking portions upon fastener elements by a severing operation or operations.

Figure 5 indicates a very economical arrangement of fasteners 40 connected together in the form or a strip 38. As shown, the usual recesses 42, apertures 43,-clamping legs or Jaws 4|, and interlocking lug and socket portions 44-45 may be provided by advancing the strip 39 in such a manner that it occupies desired successive positions with relation to the dies of a suitable press or forming machine. The upside down or reversed elements 40 may be formed when the other elements are formed, or may be separately formed by reversing the piece 19 and passing it back through the machine.

Although the dotted lines of the various figures are employed for illustratively showing lines 0! severance between elements, yet, they may be employed to indicate some suitable form of indicating lines of severance to an operator or to suitable gauging parts of the machine.

The elements 40, as shown in Figure 5, are alternately reversed in such a manner that the side edges of an element are complementary with the side edges of an adjacent reversed element. That is, taken transversely, the top and bottom longitudinally extending edges of the strip 38 alternately provide the base of an element and the top or apex 01' an adjacent element. Thus, each top and bottom edge of the strip becomes the top of a plurality of spaced elements, as-well as the bottom of a plurality of spaced elements.

Although I have for the purpose of illustration, shown the elements 20 in an abutting relationship ln Figure 5, yet they may be held in a spaced relationship by suitably positioned connecting portions or lugs 46 (see Figure 6). It will appear that the relationship shown in Figure 5 is very economical of material and minimizes waste.

It has been customary to in some manner slope the side edges 01' the individual elements towards the locking ends thereof. This simplifies the construction and operation of a slider 49, such as shown in Fig. 14. However, I have further taken advantage 01' this particular dimension relationship of the individual elements, in order to make possible the ultimate utilization oi the portions of a strip, and in order to minimize the wastage of such material. Of course, the inventive features of my disclosure may be applied to any other suitable form of element.

11, as contemplated, the upwardly and downwardly lacing elements 40 of the strip 39 are partially formed while in a strip relationship with respect to each other, then, they may be assembled upon suitable carriers and cords prior to severance.

By providing a plurality of alternately reversed and interconnected elements 40 that are. at least initially. maintained ln'a' unitary strip form, a number of strips may be suitably grouped for further processing, assembling, and/or severing oi the elements (see Figures 7, 8, and 9). As seen, a strip 39 is heldin a transverse relationassembled upon a carrier, such as 41.

ship with respect to other strips, and is preferably spaced with respect to the others a distance which corresponds to the mounted distance between adjacent elements upon one side, 41, of a fastener assembly such as shown in Fig. 14. Spacers or washers (not shown) may be employed as illustrated in Nodine Patent No. 1,890,- 335, entitled separable fastener and method of making same. As seen, the carriers 41 may be employed in combination with a suitable cord structure such as 48.

However, it should be understood, that the means for supporting the strips of elements 38 in a grouped relationship, such as shown in Fig. 7; are employed for the purpose of illustration. Thus, if the strips are of short lengths, they may be held in the manner shown in Fig. 7, but if of longer lengths, they may be held in the form of a spiral or coil whose turns are spaced from each other. Each strip or spiral ofelements 39 may be grouped with respect to adjacent spirals or socalled turns of a coil in the manner suggested in Figs. 7, 8, and 9.

In the operation of assembling the elements on suitable carriers 41, the strips are preferably maintained intact until a carrier element is associated with each individual fastener element 40.

I contemplate positioning carrier elements 41 within the recesses 42 and the central apertures 43 from opposite sides of the group of strips 39. Of course, it will appear that this has been made possible by the alternately reversed relationship between the individual elements 40 of each strip.

After suitable cords such as 48, (see Fig. 8) and their associated carriers 41 have been threaded through the recesses and apertures of a transverse line of elements of a plurality of longitudinally extending strips, any suitable means may be employed to press the strips together (preferably adjacent opposite ends thereof) in order to close or lock the leg portions 4i upon the cord and carrier elements 48 and 41. If it is desired, the elements may be severed while held in such a grouped relationship. Fig. 8 illustrates a method of accomplishing this. As seen, the elements may be held between upper and lower clamping bars or rods 52 and 5!, respectively, which may be positioned by slotted cross clamps or beams 53 and 54, and held together by suitable removable bolts 55 (see Fig ure 7).

I may simultaneously sever both sides of one element, such as 20, see Fig. 9, of a strip or of a plurality of strips 39, as well as the adjacent sides of adjacent elements of the strip or strips, by employing a set or pair of cutting jaws, saws, dies, or shears and GI, which are preferably inclinedly mounted to converge slightly towards each other at a cutting plane thereof. Thus, as appears from Fig, 9, the cutting blades 60 and ii may be moved downwardly along the dot-indicated lines to sever one or more elements of a transverse line of elements. The blades 60 and BI may be moved transversely to complete the severance of a line of elements which have been However, a plurality of elements-may be simultaneously severed or individually severed as desired.

In Fig. 13, I have diagrammatically shown a punch gate 60 having one or more inclined cutting blades Bi which may cooperate with table 62 to cut oil a full transverse line of elements. If this later type of blade is employed, the table 62 may be substituted for either the upper beams 52 or the lower beams 5i (see Fig. 7) or for both.

a,1ss,ove 3 However, my invention is not limited to any particular type or method of severing the elements. For example, a plurality of transverse lines of elements may be simultaneously severed by providing a plurality of pairs of cutting blades.

7 In order that the elements may be readily severed while being rigidly held, and may be out without undesirably breaking off before a severance is completed, I have shown a form of supporting and positioning structure which, as above mentioned, includes upper transversely extending positioning members 51, whose bases may substantially correspond in width to the width of the top or an'element to be severed, and whose sides are sloped in a converging manner therefrom, in order that the cutting blades may be freely moved into and out of a cutting relationship. However, if the elements are severed from the top as mentioned above, the lower transversely extending support bars Ii need not be inclined. As seen, however, their thickness may substantially correspond to the thickness of the top of an element to be severed. But, of course, the bars ii and 52 may be positioned to support the strips in any other suitable manner, as for example, adjacent the base of the elements to be severed.

Thus, I contemplate the supporting of a plurality of strips of elements in a grouped relationship by supporting the top and bottom edges of those strips.

If the elements of each strip are supported at their apices or tops as shown, the severing operation for both sides of each element can be simultaneously accomplished and there will be little or no tendency to pull, twist or tear the element in the cutting operation. This, in itself, is a novel feature of my invention.

Previous to the present invention, it has been impractical to manufacture fastener elements from a heavy block, bar, or rod of material. That is, the employment of strips in the manufacture of fastener elements has been the rule rather than the exception. Although, as'seen from Fig. l, the recess portion 22 and the aperture portion 23, as well as the sides, top and the clamping legs 2| of the elements may be formed while the elements are still in a bar-like relationship with respect to each other, it has been impossible to form interlocking portions such as 44-48, see Fig. 5. In other words, it has been necessary to sever the elements and then to form these interlocking portions. However, I have been able to form the interlocking portions 24-2! of the type of elements shown in Fig. 2- by the slicing or severing operation, itself. See particularly the disclosure of my co-pending application having Serial No. 48,420, filed on November 5, 1935.

As shown from the dotted lines of Figure l, a cutting blade may be entered upon the piece it in the vicinity of what is to constitute the base portion of an element to be severed, and a shear or cut is then preferably made in a substantially straight line transversely of the piece up to a proposed bottom limit of an interlocking shelf or ledge 24. Thence, above, a blade is entered upon the piece in the vicinity of what is to constitute the top portion of elements severed, and a shear or cut is then made in a. backwardly or forwardly inclined direction to complete the severance of the element 20.

or simultaneously with the 24, or as shown in Fig. 4, another portion Il may be left between elements in order to connect and support them.

It will appear from Fig. 3 that an inclined out along the dotted lines indicated will simultaneously finally sever the elements 20 and form interlocking portions 24 therefor. Thus, the elements to maybe held in this spaced and connected relationship during certain steps in the forming procedure, such as a coloring of the elements and/or a mounting of the elements upon a cord and carrier combination 41-48.

The aperture 23 and the recesses 22 are preferably cut or drilled out prior to a severance of individual elements 20. It is advantageous to either provide a bar, rod, or piece l9, whose outer dimensions substantially conform to the desired edge dimensions of the individual elements, or to process the piece to the desired form prior to a complete and/or partial severance of individual elements 20.

By retaining the individual elements 20 in a connected relationship, I preferably mount a longitudinal line or bar of such'elements upon a single carrier and cord combination 41-48 (such as shown in Fig. 14), by merely inserting the combination, and then, pressing the legs 2| of the elements together to clamp it in place. The thickness of the out between elements is preferably made to correspond to the spacing between elements of one side of a fastener assembly such as 41 of Fig. 14. Thus, a severance along the connecting tops 24 of Fig. 3, or along the connecting base corners 26 of Fig. 4, will leave a plurality of individual elements 20 mounted upon one carrier 41 and forming one side of an assem bly such as shown in Fig. 14. Of course, the elements 20 may be completely severed and then assembled as desired.

However, if desirable, suitable lug and socket forms of interlocking portions (such as lugs 44 of Figure 5 and sockets 45 of Figure 6) may be formed or stamped upon the opposite side faces of the elements 20 while they are maintained in the spaced and connected relationship of Fig. 4. In this connection, the lugs 44-45 may be mounted upon the portions 24-25 of an element 20, or the element may be formed with planar face portions, such as shown in Figs. 5 and 6, and the interlocking portions 44-45 formed thereon. Thus, when it is necessary or desirable to prevent a sidewise movement of interlocking elements 20, the above lug construction 44-45 may be employed, or the manner of forming the portions 24-25 set forth in my co-pending application Serial No. 48,420, filed on November 5, 1935, may be employed.

It will thus appear that in accordance with the procedure last enumerated above, the individual elements 20 of One piece is, or of a connected row of elements, form the spaced and adjacent elements of one side of a stringer assembly, while in another procedure a transverse line of elements from a plurality of strips 39 (see Fig. 5) may be mounted upon the same carrier elements 41-4! (see Figs. 8 and 9).

In Figs. l0, l1, and 12, I have illustratlvely shown how blocks or rectangular pieces are employed to form a plurality of strips of elements, bars of combinations thereof.

As shown in Fig. 10, a rectangular or block-like piece of material I1 is preferably partially formed by cutting, drilling, or stamping out recesses 42 and apertures 43 which correspond to elements, individual elements, and/or' the carrier or stringer receiving portions of a plurality of elements 40. As seen, a plurality of strips are severed along the transverse lines indicated or a plurality of bars are severed along the longitudinal lines indicated. Of course, the recess and apertured portions 42 and 43 may be formed after strips 39' and/or bars I9 are severed from the block I1.

If strips 39' are provided by severing along the transverse lines indicated, suitable interlocking lug and socket portions 44 and 45 (see Figs. 5 and 6) may be stamped thereupon, the strips are then grouped in such a relationship as indicatedin Figs. 7 to 9, inclusive, and thence. further treated and/or assembledupon suitable carriers. After this, of course, the individual elements 40 may be severed from their strips.

If, however, it is deemed advisable to sever a bar I 9' of elements along the longitudinal lines indicated, the individual elements may be further formed while in such relationship and partially severed in a manner such as suggested in Figs. 1, 3, and 4, and thence, mounted upon a suitable carrier 41. Interlocking portions such as 24 and 25 (see Fig. 2) or such as 44 and 45 (see Figs. 5 and 6) may be provided. of course, severance would follow as previously suggested.

In Fig. 11, I have shown a somewhat modified form of block or piece I? from which a plurality of elements facing on the same side or base may be formed. In this construction. cutting and/or drilling members may be utilized to form suitable carrier-element-receiving recesses and apertures 22 and 23, and also to cut out and form the inclined side edges of the adjacent elements. As appears, the side edges are not completely severed, but a connecting link 25' is left therebetween. However, they may be completely severed in this I have further provided procedure by which one or more bar-like pieces may be readily employed carrier 41 of an assembly (see Figs. 3 and 14). I have also made possible the forming of fastener elements by a cutting or severing operation, itself (see Figs. 1 to 4, inclusive).

Further, as shown in Figs. 11 and 12, a single block or piece of metal may be employed to form a plurality of elements by a plurality of procedures. That is, the strips may be severed along the transverse lines indicated and retained in strip form, in order to assemble the elements upon carriers in such a manner as illustrated in Figs. 7 to 9, inclusive, or

in Figs. 1 to 4, inclusive, and Fig. 14.

While I have described what I now consider to be preferable procedures for producing interlocking fasteners of types such as herein illustrated, it will be apparent to those skilled in the art that some oi the steps herein described may be somewhat modified, some may be omitted, and others tener elements from 8. steps of at least partially forming the piece in added, and that variations in the order of the steps herein described may be made without departing from the spirit and scope of my invention as defined by the following claims.

What I claim as new and desire to secure by Letters Patent is:

correspond to the bases of a plurality of alternately reversed elements, and severing a plurality of alternately reversed elements from the piece.

2. In a method of assembling a plurality of elements upon a plurality of carriers, the steps of grouping a plurality of strips of complementary elements in a transversely spaced and aligned relationship with respect to each other, associating a carrier with each element of the strip of the group, and simultaneously severing both sides of each element from its respective strip.

3. In a method of producing interlocking faspiece of material, the

accordance with the desired form of individual elements in such a manner as to provide a plurality of interconnected element pieces and that each element piece has a plurality of converted elements, and thence, completing the forming of individual elements.

4. In a method of producing fastener elements from a longitudinal piece of material, the steps of at least partially forming a plurality of longitudinal lines of elements while maintaining them in a unitary form, each element or a longitudinal line having lateral i'aces lying opposite to lateral faces of the other elements of the line. assembling the elements on carrier members and severing individual elements from the piece.

5. In a method of producing a plurality of interlocking fastener elements from a block-like piece of material. the steps of at least partially forming the block to correspond to a plurality of lines 01' connected elements, and thence, severing a plurality oi connected element pieces from the block-like piece.

6. In a method of producing interlocking fastener elements from a block-like piece of material, the steps of preliminarily laying out a plurality of longitudinal lines of interconnected elements in such a manner that adjacent elements have a reversed relationship with respect to each other, forming carrier recesses upon opposite sides of the piece along lines corresponding to i the bases of a plurality of longitudinal lines of elements, and thence severing a plurality of interconnected strips or elements from the piece.

7. In a method of producing interlocking fastener elements from a bl0ck-like piece of material, the steps of preliminarily laying out a plurality of longitudinal lines of interconnected elements in such a manner that adjacent elements have a reversed relationship with respect to each other, forming carrier recesses upon opposite sides of the piece along lines corresponding to the bases of a plurality of longitudinal lines of elements, and thence severing a plurality of interconnected elements from the piece.

8. In a method of producing interlocking fastener elements from a block-like piece of material, the steps 01' preliminarily laying out a plurality of longitudinal lines of interconnected elements in such a manner that adjacent elements have a reversed relationship with respect to each other,

forming carrier recesses upon opposite sides of the piece along lines corresponding to the bases of a plurality of longitudinal lines of elements, severing a plurality of connected elements from the piece, forming interlocking portions upon the elements and thence mounting the elements upon carriers. I

9. In a method of producing interlocking fastener elements from a block-like piece of material, the steps of preliminarily laying out a plurality of lines of interconnected elements, forming carrier recesses from a side of the piece along lines corresponding to the bases of a plurality of longitudinal lines of elements, severing a plurality of longitudinal bars of adjacent elements from the piece, at least partially severing individual elements from each longitudinal bar, and mounting the elements of a longitudinal bar upon a carrier.

10. In a method of assembling a plurality of elements on a carrier, the steps of grouping a plurality of lines of elements and reversed elements in a transversely alined relation with respect to each other, associating a carrier with an element of a plurality of lines of the group, and associating a carrier with a reversed element of a plurality of lines of the group.

11. In a method of assembling a plurality of elements on carriers, the steps of grouping a plurality of longitudinal lines of elements in a transversely alined relation with each other, associating a carrier with an element of a plurality of the longitudinal lines of the group from one side of the group and associating a carrier with an element of a plurality of the longitudinal lines of the group from an opposite side of the group.

12. In a method of assembling a plurality of elements on carriers, the steps of forming carrier recesses from one side of a strip of elements and forming carrier recesses from an opposite side of the strip in such a manner that reversed elemerits will be provided, grouping a plurality of the strips in a transversely alined relation with respect to each other, associating a carrier with a plurality of strips of the group from one side of the strips of the group, and associating a carri'er with a plurality of strips of the group from an opposite side of the strips of the group.

13. A plurality of fastener elements in an interconnected form, each element having a reversed relation with respect to an adjacent element, the adjacent sides of said elements being spaced from the sides of adjacent elements, and each element being connected to an adjacent element by 9. lug.

14. In a method of producing fastener elements from a piece of. material, the steps of laying out a plurality of elements in a connected and reversed relation with respect to each other, and forming complete interlocks on the reversed elements while the elements are maintalnd in a reversed relation. 7

15. A pair of connected and substantially formed fastener elements on a piece of material, said elements having formed carrier-mounting portions and having a reversed and side-by-side relation on the piece, the lateral widthof the piece being the width of the formed elements from top to base portions thereof.

16. A pair of connected fastener elements on a piece of material, each element having a formed carrier-mounting portion, each carrier-mounting portion opening to a different surface portion of the piece.

17. In a method of assembling fastener elements on suitable carriers, the step of holding successively-adjacent elements with a carrierrecess between said leg portions,

receiving portion of one element extending in an opposite direction to the carrier-receiving portion of the other element while associating a carrier with the elements.

18. In a method of assembling fastener elements on suitable carriers, the steps of holding successively-adjacent and connected elements in such a manner that one element extends in a diflerent direction than the other, and associating a separate carrier with each element while holding them in such a connected relationship.

19. In a method of producing fastener elements from a piece of material, the steps of forming carriebrecesses in the material at adjacentlyreversed locations therealong, and forming reversely-adjacent fastener elements in alignment with the recesses.

20. In a method of producing fastener elements from a piece of material, the steps of forming carrier-recesses in the material at adjacentlyreversed locations therealong, forming interlock portions on the material at adiacently-reversed locations therealong and in opposite locations with respect to the recesses, and forming reversely-adiacent fastener elements in such a manner that each element will have a carrierrecess and an interlock portion.

21. In a method of producing fastener elements from a piece of material, the steps of substantially forming a pair of connected elements from the piece in a reversed and adjacent relationship with respect to each other, and completing the formation of one of the elements and forming a side of an adiacent element by severing it from such adiacent element. I

22. In a method of producing fastener elements from a piece of material, the steps of at least partiaily forming adJacently-posltioned and reversely-extendlng connected elements from the material, and simultaneously separating an element portion from adjacently-connected element portions by a straight line severance along each of two edges of such element portion.

23. A pair of fastener elements in an interconnected form having clamping-leg portions and carrier-receiving indentations therebetween, the sides of each element being substantially complementary with the sides of adjacent elements of the same strip, carrier-receiving indentations of adjacent elements being located on and being open to opposite sides of the strip.

24. A pair of fastener elements in an interconnected form, each element having clamping leg portions adjacent a side thereof and a carrier each element having an interlock portion adjacent another side thereof, the clamping leg portions of one element being located adjacent a different side of the interconnected form than the clamping leg portions of the other element of the pair, and the clamping leg portions of each element lying along a common side plane of the form with the interlock portion of the other element of the pair.

25. Fastener elements in a longitudinal interconnected form, each element having a reversed relation with respect to an adjacent element, said elements having adjacent sides lying along the length of and bounded by a straight line extending laterally between opposite sides of the interconnected form.

26. In a method of producing fastener elements from a piece of material, the steps of forming carrier receiving indentations in and along a side of the piece that correspond to the bases of a pair of spaced-apart elements, and forming carrier receiving indentations in and along an opposite side of the piece at staggered locations therealong with respect to the first-mentioned side of the piece that corresponds to the bases of a reversed pair of spaced-apart elements. surface portion of a fastener element and meeting 5 2'7. In a method of producing fastener elements an edge of the piece in an acute angle.

from a piece of material. the step of forming con- 29. A pair of fastener elements in an adjacentnected pairs of adjacently-positioned and re- Ly-positioned and reversely-extending relationversely-extending fastener elements in such a ship, top and bottom portions of each element of manner that top and bottom portions of each elethe pair extending laterally between opposite lon- 10 ment extend laterally between opposite longigltudinal sides of the piece.

tudinal sides of the piece. 30. A pair of connected fastener elements on a 28. In a method of making fastener elements, piece of material, each element having a formed the steps of providing a length of a longitudinallycarrier mounting portion, each carrier mounting extending piece of material 01' a width substanportion lying on a different surface plane of the tially equal to a desired maximum width of a fastener element. and severing fastener elements from the piece at spaced locations thereaiong by single cuts that extend completely across the width of the piece, each out having a contour substantially corresponding to the desired shape of a piece.

THOMAS G. IMILLER.

CERTIFICATE OF CORRECTION.

Patent No. 2,158,078.

May 16, 1959.

THOMAS G MILLER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page sec- 0nd column, line 29, 012111115, for the word "converted" read connected; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this hth day of July, A. D. 1939.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

carrier receiving indentations in and along an opposite side of the piece at staggered locations therealong with respect to the first-mentioned side of the piece that corresponds to the bases of a reversed pair of spaced-apart elements. surface portion of a fastener element and meeting 5 2'7. In a method of producing fastener elements an edge of the piece in an acute angle.

from a piece of material. the step of forming con- 29. A pair of fastener elements in an adjacentnected pairs of adjacently-positioned and re- Ly-positioned and reversely-extending relationversely-extending fastener elements in such a ship, top and bottom portions of each element of manner that top and bottom portions of each elethe pair extending laterally between opposite lon- 10 ment extend laterally between opposite longigltudinal sides of the piece.

tudinal sides of the piece. 30. A pair of connected fastener elements on a 28. In a method of making fastener elements, piece of material, each element having a formed the steps of providing a length of a longitudinallycarrier mounting portion, each carrier mounting extending piece of material 01' a width substanportion lying on a different surface plane of the tially equal to a desired maximum width of a fastener element. and severing fastener elements from the piece at spaced locations thereaiong by single cuts that extend completely across the width of the piece, each out having a contour substantially corresponding to the desired shape of a piece.

THOMAS G. IMILLER.

CERTIFICATE OF CORRECTION.

Patent No. 2,158,078.

May 16, 1959.

THOMAS G MILLER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page sec- 0nd column, line 29, 012111115, for the word "converted" read connected; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this hth day of July, A. D. 1939.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

Patent No. 2,158,078 Granted May 16, 1939 THOMAS G. MILLER The above entitled patent was extended January 1, 1952, under the pr0visions of the act of June 30, 1950, for 7 years and 174 days from the expiration of the original term thereof.

Commissioner of Patents.

US728555A 1934-06-01 1934-06-01 Fastener element and method of producing it Expired - Lifetime US2158078A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421323A (en) * 1942-05-15 1947-05-27 Zipp Fastener Company Ltd Manufacture of sliding clasp fasteners
US7743512B1 (en) 2004-11-08 2010-06-29 Zipwall, Llc. Plastic sheet cutter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421323A (en) * 1942-05-15 1947-05-27 Zipp Fastener Company Ltd Manufacture of sliding clasp fasteners
US7743512B1 (en) 2004-11-08 2010-06-29 Zipwall, Llc. Plastic sheet cutter
US8069546B1 (en) 2004-11-08 2011-12-06 Zipwall, Llc. Plastic sheet cutter and method for installing a zipper on a sheet of material

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