US1720385A - Fastener-cementing device - Google Patents

Description

July 9, 1929. c. w. STEELE FASTENER GEMENTING DEVICE Filed Aug. 30. 1928 2 Sheets-Sheet Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

CHARLES W. STEELE, OF AKRON, OHIO, ASSIGNOR TO THE MILLER RUBBER COM- IPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

FASTENER-CEMENTING DEVICE.

Application filed. August 30, 1928.

My said invention relates to improvements in means or apparatus for facilitating the application of cement to the stringers of what are known as slide or multiple fasteners comprising a plurality of interlocking members which arebrought into and out of'engagement by the action of a slide member, such type of fastener being well known in the art and being now largely used as a closure means for rubber ,overshoes and the like.

In the manufacture of rubber footwear equipped with such closure fasteners, the multiple fastener elements are mounted upon tapes or strips of fabric usually known as stringers which are thereafter impregnated with rubber cement so that they may be at tached to or incorporated with the upper of the shoe and be vulcanized thereto.

It is important that no cement should come in contact with the working parts of the fasteners which would preclude their proper working and it is also desirable to prevent the cement from coming in contact with any of the metal parts of the fasteners or in too close proximity thereto as certain ingredients used to effect vulcanization (for example sulphur) tend to attack or discolor the metal and weaken the engagement of the parts with the fabric.

The present invention aims to provide a novel form of apparatus which will enable the fabric stringers to be rapidly and effectively coated or impregnated with cement without any of the detrimental clfects on the metal fastener elements above referred to and the invention includes the novel construction hereinafter described and defined by the appended claims.

The invention is illustrated in the accompanying drawings in which:

Figure 1 is a side elevation of what I at present consider the preferred form of the apparatus.

Fig. 2 is an end view thereof.

Fig. 3 is a cross section on line 3-3 of Fig. 1 showing a set of fastener elements and stringers in place, and Fig. 4C is a section 011 line 44 of Fig. 1.

Referring by reference characters to this drawing, the device is shown as comprising a narrow substantially box-like structure comprising a number of strips or plates 1 preferably of aluminum, having the edges of juxtaposed plates spaced apart a distance Serial No. 303,099.

equal to the thickness of the fabric stringers. The plates on opposite sides are spaced apart a distance corresponding to the distance between the outer ends or edges of the inter locked fasteners (indicated conventionally at A) so that when the fabric stringers B are inserted edgewise in the space 1 between the juxtaposed plates, the fasteners will pass down into the interior of the box-like structure and be protected from the cement when the article is dipped, the stringers fitting so snugly in the slots or spaces as to preclude the passage of any cement. I

The opposed plates 1 are tied together in spaced relation by shouldered rivets or studs f and 5' and are connected at their lower ends to the inside faces of a channel member 8 by means of the shouldered rivets 2 and 3, the channel member forming the bottom of the box like structure. Filler pieces 6 are provided for closing the ends of the structure, said filler plates being secured by rivets 6 The upper ends of the plates 1 are extended outwardly or offset to provide space for the slider C and its operating piece D.

Eye members 7 are connected to the end plates to receive hand hooks to enable the operator to readily perform the clipping operation.

In using my improved device, the operator grasps the fabric stringers and slides them down into the slots or spaces between the plates with the fastener elements within the box and the stringers protruding as shown in Figs. 3 and 4: until the device is loaded whereupon it is submerged in a bath of rubber cement until the stringers are thoroughly coated or impregnated, the box like carrier preventing the cement from contacting With or injuriously affecting the metal parts. After removal from the bath, the stringers may be slid out of the slots and applied to the shoes or other articles.

The entrance of the stringers into the slots is facilitated by the approximately V shaped guides 1 formed by the inclined or rounded upper edges of the plates.

Having thus described my invention, what I claim is:

1. Apparatus for dipping stringers carrying multiple fastener elements comprising a box-like structure having a space to receive the fastener elements and slots in its walls for receiving the fabric stringers.

2. Apparatus according to claim 1 in which the upper ends of the box walls are ofiset to provide space for the slider.

- carrying, multiple fastener elements com prising two sets of parallel plates, the plates of each set being spaced apart a distance corresponding to the thickness of the stringers,

and means for closing the space between the two sets of plates at the bottom and between the end'plates.

6. Apparatus for dipping fabric stringers carrying multiplefastener elements comprising two sets of parallel'plates, the plates of each set being spaced apart a distance corresponding to the thickness of the stringers, and means for closing the space between the two sets of plates at the bottom and between the end plates, :1 channel shaped member to which the lower ends of the plates are secured, and filler plates secured between the opposed plates at each end.

7. Apparatus for dipping stringers carrying metal fastener elements comprising a box like structure provided with a plurality of vertical slots extending from the open top to near the bottom, the slots having such width as to just accommodate the stringers and the walls of the box having such a thickness as to prevent the cement from contacting with the metal parts of the fastener, substantially as described.

' In testimony whereof, I afiix my signature.

CHARLES V. STEELE.

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