USRE3193E - Improved machine for filling cylindrical mouldx for rubber goods - Google Patents

Description

tntrd gime' @anni @Mira JOHN vv. OOBB, OF MELROSE, (EOE nnusELE) AND EDWIN A. vnLL, (ASSIGNEE O F JOHN W. oOBB,) vOE QUINGY, MASSACHUSETTS.

Letters Patent No. 65,794, dated Jam: 18, 1867; reissue No. 3,193, dated Novemberl 17, 1868.

mr'pn'ovnp MACHINE ron rmLrNG CYLINDRICAL ruom'nns ron RUBBER Goons.

.".l'ha Schedule referred to in these Letters Patent'and making-part of the same.

signed to the said EDWIN A. HILL one undivided half part ofthe exclusive property covered by such patent, as will appear by the records of the United States Patent O iice; and whereas we, the undersigned, have applied forthe reissue of' the said patent, the speciiieationand claims thereof being discovered by us defeetive or insuicient; now, therefore, we do hereby 'declare the `invention to be iilly described in the following specification, and `represented in the accompanying drawings, of which Figure 1 is a perspective view,

Figure 2, aplan,

Figure 3, an end view, and

Figure 4, a transverse and vertical section of such machine. In such drawings, C represents afloor or bed, upon which the machineis supported.

BB B B are four legs or standards, resting upon the floor or bedA C, and being framed into end-pieces or headblocks, A A, form therewith a support or frame for the main operative parts of the machine. f

The parts A A are to be provided with suitable boxes or bearings for supporting the journals of their hollow cylinders or rollersS MR, which should have pipes, or means of introducing steam into them, for the purpose of keeping them at a proper temperature while the machine may be in operation.

Themiddle cylinder or roller M is what may be termed the moulding-cylinder, it having one or more matrices or moulds formed in and .below its curved surface,

' such moulds being shown at E F, in figs. l and 2.

The moulds exhibited in thedrawings are intended for the moulding of ventilathig-soles, of India rubber,

'- or other vulcanizable materia The cylinders S and M are geared together by the gears L K, so as to revolve with equal speeds, the Object,of the roller or cylinder Sbeing to cause a piece of cloth, while passing between it and the mouldingcylinder, to adhere to the mass or masses of rubber or imaterial contained in the mould or moulds of the cylinder', or to consolidate and smooth. Ythe moulded mass or masses in case the cloth may not be employed.

4The cylinders or rollers M and R are geared together by the gears GrA H, (see gs. A2 and 3,)the` gear -G having a diameter greater than that of the gear H, the object being to cause'the gearR to revolve with a velocity greater than that oi the moulding-cylinder, inorder that,` the rubber or material may be rubbed or ground into the mould or moulds of the cylinder M. This grinding or rubbing-actionof the roller R affords a much better 'result than would be attained were the curved surfaces ofthe cylinders M and R to revolve; at 'equal speeds This machine may be applied to the making of goods v withr'aised figures, orto the manufacture of various other articles capable of being moulded by it.

In using it, .the mass of rubber or material to be moulded is placed in the angular space between the 'tcp sin'iaces'of the cyindersR' and M, whiletheymay' be in revolution in the directions of the arrows shown in iig, 4, as directly over them. Thecloth passes upwardbetweenthe rollers Mv and S', the latter roller" being revolved in a direction opposite to that of the moulding-cylinder. A j y We are wellaware that rollers or cylinders, operating at different velocities, have been employed for the purpose of grinding India rubber, Or corn Ositions which such was a constituent, and also or the purpose of Working it into the `meshesof cloth, and, consequently, We make no claim thereto as the invention of the said COBB. i I What we do claim as the said OOBBs invention, is asy follows:

We claim the combination of a moulding-cylinder, M, and a grinding-roller, R, substantiallyas described,

Vand mechanism for revolving'the two at diierent speeds, as and for the purpose explained.

We also claim the combination ofthe pressure-roller I S, the mouldingcylinder M, and a grinding-roller, R',

,substantially as described, and mechanism for revolving the moulding-cylinder and grinding-roller at dierent speeds, as and for the purpose specied, the pressv ure-roller having applied to it mechanism for revolving it at the same speed with the moulding-cylinder. JOHN W. COBB.

u EDWIN A. HILL. Witnesses: 1

R. H. EDDY, l F. I. HALE, Jr.

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