US1957270A - Talcing apparatus - Google Patents

Description

y 1934. A. w. KEEN Er AL 1,957,270

TALC ING APPARATUS Filed Aug. 4, 1931 INVENTORS 7 JLEX/J' 14 KEE/V HAKOLD 7 BATT/A/ PERCY 6 DUI, 3/ 3 Patented May 1, 1934 rare-hr orrica 1,957,270 TALoiNo Arreaa'rus Alexis W. Keen, Passaic, Harold T. Battin, Ridgeweod, and Percy C. Button, Nutley, N. J assignors to Revere Rubber Company, Providence, it. L, a corporation of Rhode Island Application August 4:, 1931, Serial No. 554,974

5 Claims.

This invention relates to the art of applying talc or similar powdered materials to tacky strips or threads and is particularly directed to the manufacture of lengths of filaments or threads of rubber. As these threads or filaments are formed by a producing machine, it is necessary that they be talced in order that they may be wound on reels or collected in other devices without danger of sticking together. The invention is particularly concerned with talcing vulcanized rubber filaments, which although not possessing a great amount of tack, require talcing in order that residual tackiness be eliminated and that they may be more readily handled. The invention is applicable, however, to any stage in the manufacture of filaments of rubber or similar materials where a talcing operation is desired. By talc we mean any powdered dusting material capable of use to reduce tackiness and facilitate handling. This includes not only the hydrous magnesium silicate crystals ordinarily considered as talc, but also potstone, rensselaerite, soapstone, steatite, agalite, mica, kieselguhr, wood flour, etc.

An object of this invention is to provide a means for forming a continuous pile or bank of talc through which filaments or threads may be drawn without forming permanent channels through which the filaments can pass and avoid contact with the talc.

Other objects and advantages of the invention will more clearly appear when reference is had to the following specification and drawing:

In the drawing:

Fig. 1 is a plan view of an apparatus which embodies the principles of this invention.

Fig. 2 is a sectional view taken along lines 2-2 of Fig. 1.

A series of parallel threads 1, for instance rubber threads made on any suitable thread forming machine, are led from a conveyor 2 over a drum 4 and through a mass of talc l5 piled on the top portion of the talcing device. After passing through the pile of talc the threads are drawn continuously onward over roller 6 from whence they are associated together in any desired form, for instance on reels for subsequent shipment on spools or in skeins.

The talcer proper consists of a container '7 in which is rotated a drum 16 fitted with pins 9 and 10 for agitating the talc 14. The drum 16 is supported on a shaft 8 which passes through the sides of the container '1 and is J'ournaled in support 24. At the end of shaft 8 is a driving sprocket or pulley 5. Pins 9 on the drum are disposed spirally therearound and perform the function of keeping the talc loosened. The pins 10 are arranged in a straight line on the surface of the drum and are designed to carry a quantity of talc upwardly through the slot 11 extending along the top of the container, to form the pile 15. A baifle 12 is arranged longitudinally of the drum and is connected to the container '7, which baffle contains slots 12' through which the pins 9 and 10 are adapted to pass when the drum is rotated. This bafile sets up a back pressure which causes the tale to be forced upwardly through slot 11. Excess talc falls through an opening 13 back into the container.

The device may be mounted in any suitable manner. For instance standards 21 may be constructed on a base 20 with an adjustable support 24 secured thereto by bolts 23. In this support is fixed the container 7. The sprocket 5 on shaft B may be driven by a suitable means such as a chain 3'? which may also pass over sprocket 36 of shaft 31 and sprocket 38 of shaft 39. This provides for the drive of drums 3, 16 and 6 through shaft 31 which may be driven by a belt 30 on a pulley 32. At the other end of shaft 31 another sprocket 33 may be provided to drive shaft 40 by means of sprocket 34 and chain 35, drum 4 being fixed to shaft 40. In this manner the various moving parts of the apparatus may be operated.

The pins 9 and 10, cooperating with the bailie 12 and the sides of the container, cause a constant fiow of talc through slot 11 and onto the top surface 50 of the talcer. The bank is thus under a continual agitation and consequently threads or filaments which pass therethrough are not able to tunnel permanently through the pile and thereby escape contact therewith.

Obviously variations of the device described for purposes of illustration may be made without departing from the principles of the invention.

Having thus described our invention, what we claim and desire to protect by Letters Patent is:

1. In combination with a container, means for continuously advancing of parallel elastic filaments over the top of said container, means for continually forcing a pile of talc from said container transversely of the path of and into intimate contact with the surfaces of said filaments.

2. In combination with a container means for continuously advancing a series of parallel elastic filaments over the top of said container, rotary means for continually forcing a pile of talc from said container transversely of the path of said rial, and means whereby surplus material may be returned to the container.

5. In a combination, a covered fixed container for dusting material, a transverse opening in a wall of said container, means for feeding a series of filaments across said opening, rotary means for supplying a body of dusting material from said container through said opening, and means whereby surplus material may be returned to the container.

ALEXIS W. KEEN. HAROLD T. BATTIN. PERCY C. DUTTON.

CERTIFICATE 6F CORRECTION.

Patent No. 1,957, 270. May 1, 1934.

ALEXIS W. KEEN, ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as foilows: Page 1, line 101, claim 1, after "advaneing"insert a series; 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 19th day of June, A. D. 1934.

Bryan M. Battey (Seal) Acting Commissioner of Patents.

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