US1107491A - Production of disk sound-records. - Google Patents

Description

PRODUCTION OF DISK SOUND RECORDS. APPLICATION FILED 001". 28. 1912.

1,107,491, Patented Aug. 18, 1914.

witwaoaeo Q; awvamto'r C a %w-- Q QLLMM V {d MJ/ FRANK L. CAPPS, E BRIDGEPORT, CQNNECEIGUT.

IPHUNE COMPANY, GE BRIEIDGEPORT, GGKINEG'EJ.

ernre rnonno'rron or Application aiee Bilctobcr a Eli-Eat. CAN GREYHO- IQN 633 WEST VIE Specification Le lie it known that E FRANK ll. CAJPPS a g i I i 1' r 9 enizen iii-toe United Males or America, and

resident oi lirido'enort. .l airiield couutv p A .L) i I 1 .2 bollllfiiitlclli, have n vcnied a new and usetui itniin'm'enient record} and entering a central hole in the other die. litter the record has been this pin seems to serve to bind the oar-ts w ether: at an rate it has been necesl t: J '1 ary to resort to considerable hannnering to separate them in order to remove the record. 'lhis not only requires time and strength, but often causes injury to the parts, because small portions oi? the reconlanaterial are liable to find lodgnient between the adjacent faces of the matrix and the record, thereby permanently defacing the matrix as well as the record by producing therein bruised spots or dents. A record so defaced has to be thrown into the scrap heap, as its reproduction would be attended by disagreeable snappy noises which impair, it they do not entirely destroy, the quality of the reproduction. But more serious than the loss of such defaced record, however, is the loss of the matrix itseli,such dents and bruises rendering it Worthless for further use.

The object of my invention, then, is to dispense with the hammering heretofore resorted to, to facilitate the removal of the pressed record from the dies and matrices in which it has been pressed-up, to increase the percentage of perfect records so pressed, and to prolong the life of the matrices.

The invention will best be understood by reference to the. annexed drawing in Which- Figure 1 is a sectional View through the central portions of two dies with. their matrices and the interposed record or recordznaterial. showing in place the ore-terred nv novel detachable centerperspective vie Y of 1e two-pa t centerin l 8 form of the lower lower ma" whose matrix.-

most.

upper die, and e: the upper nni hose matrix-snrhice lies down- Ward.

the inter-posed record-mal disk-record. here can or the "1: l3, prefertapereei r a i r to 1.- height l sun: lent to penetrate the two in the record, and in line with the l upper die.

lis the ren'iovable .ll-.i11l 1,i shell adapted to lit over the stem l3 and to fit snugly within the usual central h l s in the matrices. The exterior of this chahle member 7 may e cylindrical, o -ably it also is slightly tapered removal .ltrices and role in the htate record.

In operation, the lower die 1 is laid With. its stationary stem projecting upward, and the l'ClllOVilblj member 1" is then put in place thereon; next the lower, matrix 2 is placed thereon with its face uppermost, the removable member passing;- snugly through the usual central. aperture in said matrix; then the record-material (Whether a homogeneous or laminated record is to be produced) is placed on the face of the matrix 2 in such manner that it surrounds themeniher 7; next the upper die 3 and its matrix are properly located, with the iaoe or" said matrix downward and with their central apertures alined with member 7; and all the matrices and record; and, finally, the shell assembled parts (dies, matrices, and reeordiron! the matrices and the ultimate pressed 7 is driven out, as by a tap on its upper end with a hammer, whereupon the two matrices are easily separated from the record.

By the use of my invention the time required for removing the pressed record from its matrices and dies is very much shortened, the hammering now necessary to separate the parts is entirely avoided, and the record is at all times protected by its matrices until it is merely lifted out from between them; and neither the record nor the face of either inatrigc has opportunity to become dented or bruised. As a consequence, the percentage of imperfect records is greatly decreased, and the life and usefulness of the matrix is greatly increased.

It is to be understood that my invention may be employed with two matrices 2 and 4, for pressing-up double-faced records, or with one matrix and a smooth platen, for pressing-up single-faced records; and that cnanges may be made in the embodiment set forth without departing from the spirit of my invention, which consists broadly in employing av detachable member that acts, during'the pressing, as an ordinary rigidlysecured centering-pin; but when the pressing has been completed and the parts are to be separated, the detachable member comes off with the matrices and record.

Having thus described my invention, 1'

adapted to come in direct contact with the record-material and to be clamped by the pressed record and adapted to be removed from said pin by the removal of the pressed record.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

FRANK L. OAPPS.

Witnesses:

JOHN J. SoULLY, .T. S. GRIFFITH.

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