US960320A - Manufacture of phonograph-record blanks. - Google Patents

Description

V. M. HARRIS. MANUE'AGTURE 0I' PHONOGRAPH RECORD BLANES. ArPLIoATIoI FILED s1:1 1.1s,19oa.

@32Go Pateted June 7, 1910.

E* wmllllnnlmlllllmlll/ll/l1111111111111 i To all whom 'it 'may4 concern.;

Y "UNIT-i3.. Stearns PATENT onirica VARIAN M. HARRIS., OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, '.110

THE UNITED STATES PHONOGRALPH COMPANY, OF CLEVELAND, 'OHIOf-A' CQRPORA- v TIoN or omo. i

.'MANUFAQTUBE or PHoNoGRArH-REGORD BLANKS.

Be it known that I, .AnilaN M. HARRIS, citizen of the United States, resident of `Chicago, c ounty of Cook, and State of Illinois, have invented a new and useful Improvement `in Manufacture of Phonograpli; Record Blanks, of which theifollowingis a speciication, the principle of the invention being herein explained and the bestl mode in which I have c onteiiiplated applying that' principle so as to distinguish it from otherinventions.

This invention relates to a process of forming phonograph record blanks from sheets of Celluloid, and has for its object'to provide a sini le and eiiicient process-of joining the abutting ends of the sheets of celluloid in a strong and permanent manner, the

process being more especially adapted for ]oining a sheet of the material bent into a tubular form, and so held while abutting.

ends are joined to etherA to form a tubular phonograph recor blank, equal in all respects to the drawn tubes or cylinders heretofore used in the manufacture of phonograph records, all as will hereinafter more ully appear.

In tlie accompanying drawing illustrative of an apparatus adapted to practicallyr carry on the present improved process: Figure 1 is a longitudinal section oii line .fc-ac, Fig. 3. Fig. 2 is a similar section with parts occupyf ing a diiierent operative position, and Fig. 3

is an end elevation.

Similar numerals of reference indicate like parts in the views.

Referring to the drawings, l represents a stationary; slideway of any usual construction, an provided with suitable feet by which it is supported in a horizontal position upon a work bench or table. 2,-are a plurality of saddle pieces secured in fixed relation to the. slideway, aiidadapted to support the cylindrical Work holder in proper positioniii the apparatus.

3,' is the cylindrical Work lholder above referred to, and consisting of a cylindrical shell of metal, .or other equivalent rigid ma-y terial, slitted along its .length to form the longitudinal opening or gap 4 in the Wall of the holder as shown..

-5 are cars upon the opposedfcdges' of the gap 4, through which passes adjusting screw 6 by whichv an adjustment in the diameter of Specification of Le'tters Patent.

Application filed September 18,'1908. Serial No. 453,634.

Patented Jim@ 7.19.1 0

the holder can be effected as required-inthe;

actual and continued use of the apparatus. :-v I

7, isthe sheet of celluloidfto be operated r upon, and which is bent into cylindrical f forni, and inserted into the interior of the f cylindrical holder 3, VWith the meeting edges4 and seam formed thereby, locatedV at the.

underside`of the blank celluloid cylinder so.: formed, and as shown-,more particularly.in,.4 Fig. 2.

8, isva carriage sliding longitiidinally:onthe slideway 41, and carrying a su ply tank 965, I in which is contained a supply o cementing.

fluid used in the practica operation of the apparatus, and .which fiuid will usually consist of a cellulose product dissolved in ether, -f 'A or the other solvent likewise capable of dissolving the material composin the sheet l0, 1s a fountain penpivota y supported@ on the carriage 8 and having one en 'con-v nected by a fiexibl form and ends in a capillary discharge oir'i't 12 through which thecementing iuld ows, as said point moves in contact with thel work.

13, is a depending operating arm rigidly connected to the fountain pen 10, aforesaid.

14 and 15 are stationary stops arranged ncar'tlie limit ofthe longitudinal travel of` the carriage 9, in each direction, which sto s are adapted to alternately contact with t e 't5 t arm 13, to raise the discharge point 12 froid automatic manner durinflrr the continuedlopconnection with the apparatus ju'st described 95:'

is as followsz' A sheet of celluloi'll of the proper dimensions is bent into a oy indrical form and inserted in the interior fjf the cy#- lindrical Work holder 3, which ijfladjusted. to the required diameter by the e tube 11, with thesupply Y tank 9, while its other end is of an elongated 75'.;g

eginning of the a tive9o djfistn i Lscrews 6. Tlie Work holder is thori plao e in position von. the sad'dle'pieces 'ijlfwith the seam 'of the celluloidl cylinder looatcd at the llowerinost .point in the. height of said cyl- 'inder as shown. The Qperatornow-mo'vesl05 Ithe carriage 8 to bring the dischargepoint 12 of .the fountain pen 10, toA therear end of the'interior of the work-and work holder, and as such position is reached the stop 15 contacts with arm. 13. toautomatieally depress the dischargefpoint 12 to an operative position. A return movement is' now im,- parted to the l carriage and the discharge point 12, is vdrawn a seam of the celluloid sheet 7 to deposit the cementing solutiongjviththe ending of such -active or return stroke of the carriage, the

stop 14; contacts with the arm 13, to automatically raise thedischarge point 12 into its normal inoperative position. The workv holder with its contained cylinder of celluloid is now removed from the apparatus and stacked away to dry out, and is replaced by a succeeding holder and its contained sheet of celluloid, the system requiring .a large -number of counterpart work'helders in the crease in cost, than by methods heretofore prevailing but'actually to produce a much superior article; for it is essential to the taking of an accurate and faultless record on the blank, that its outer surface be as highly lpolished as possible. Such polishing is of course obtained in a much more perfect degree, as well as more easily, when the material is insheet form than in the Acase of tubular articles. .In my method of butt` welding the edfres of the sheets together by exteriorly supporting the same and applying the solvent from within, I not only avoid any ridge or inequality, which would be fatal to the usefulnessof the article for the purposeA in hand, but I preserve the smooth exterior of the sheet, now become a cylinder, with such success, that it becomes impossible to detect in the 'finished article the original l line of cleavage.

Other modes ofa Jplying the principle of my invention may e employed instead of the one explained, change being made as regards the process herein disclosed, provided the step or steps stated by any one of the following claims or the e uivalent of such statedste or steps be emp o ed.

I there ore particularly point out and distinctly claim as 'my invention 1. .In the manufacture of phonograph recvord blanks, the ste s which consist in form-.

ing a sheet of-cel uloid with edges at substantially right angles to the surface ofthe sheet, bringing two such edges together under pressure exerted transversely thereof,

ong the longitudinall and simultaneously effecting the softening and adhesion of such abutting edges. y

` 2. In the manufacture of phonograph record blanks, the steps which consist in form- -ing a sheet 0f celluloid with edgesat substantially vright angles to the surface of the sheet, bringing two opposite edges together and causing such edges to abut by pressing exteriorly on the sheet, and simultaneously effecting the softening and adhesion of the abutting edges.

3. In' the manufacture of phonograph record blanks, the steps which consist in forming a sheet of celluloid with edges at substantially right angles to the surface of the sheet, bringing two opposite edges together and causing such edges to abut by pressing exteriorly on the sheet, and simultaneously applying a suitable solvent along such abutting edges, whereby their softening and adheslon-is effected.

4. In the manufacture of phonograph reeord blanks, the ste s which vconsist in forming a sheet of cel uloid with edges at substantially right angles to the surface of the sheet, bringing two opposite edges together and causing such edges to abut by pressing exteriorly on the sheet, and simultaneously applying a suitable solvent along such edges from` within, whereby their softening andadhesion is effected. v

5. In the-manufacture of phonographrecord blanks, the ste s which consist in forming asheet of cel uloid with edges at substantially right angles to the surface of the sheet, bringing two opposite edges together and causing such ed es to abut by pressing exteriorly on the s ect, said sheet beingA horizontally disposed with such abutting edges located lower-most, and applying a suitable solvent along such edges from withinLWhercby their softening and adhesion is effected.

6. In the manufacture of phonograph record blanks, the steps which consist in forming a sheet of celluloid with edges at substantially right angles to the surface of the sheet, maintaining the sheet in substantiallycylindrical form, causing the meeting edges to abut by -pressing exteriorly on the cylinder, and simultaneously effecting the softening and adhesion of such abutting edges.

7. In the manufacture of phonograph reeord blanks, the steps which consist in forming a sheet of..celluloid with edges at substantially right angles to the surface of the sheet, maintaining the sheet in substantially cylindrical form, causing the meeting edges der, and applying a -suitable solvent along such abutting edges, whereby their softening and adhesion is effected. k

8. In the manufacture of phonograph. reeord blanks, the steps which consist in forming a sheet of celluloid with edges at sub- -to abut by pressing exteriorly on the cyllnstantially right angles to the surface v of the and'alplying a sultablesolvent alontg such l ed es m within -whereby their so toning an adhesion iseilected.

softening an f 'record blanks, the ste sheet, 'maintaining the sheet in substantially cylindrical -formzl causing the meeting edges to v abut by presslng exteriorly on the sheet,

9. In the manufacture o'f phonograph rec-f Acrd blanks, the stas which consist in form#- ing a sheet ofce uloid with edges at'sub stantially right angles to the sur ace ofthe sheet, maintaining the sheet'in substantially"- edges forming a sheet .of cel uloidswith edges at substantially `right angles to the surface-ofl the sheet; maintaining the sheet in substantially cylindrical form, 1

causing the 7 meeting to -4abut by exteriorly press' -by a smooth .sur ace,

abutting edges locate low-.. e'rmost, and applying va. suitable solvent edges p onthe cy Inder, exteriorly supporting' suc edges by a smooth surface sol-vent along l such edges whereby their softening and adhesion is effecttl', and asmo'oth exterior surface preserv n t record blanksg the formjn a sheet of celluloid with edges substantia y atright angles to the surface of the sheet, maintaining the sheet in substantially cylindrical form, 4causing the meeti edges to abutlby ressing exteriorly on the cy inder, exterior supporting such edges horizontally disposed edges suitable solvent alon such edges in', whereby their so with such abutting mvwithemng and adhesion 1s eiecte'd, and v a' smooth exterior surface 'pre' served.-

T90 f 1 v [VARIAN M.' planners.v Ammanf N Smus.

and applying a suitable 'y from within,

said cylinder being.

located lowermost, and a plying al Signed by me this 15th day of Septembel, `v

, 11. In the manufacture of phonographjl` steps which conslst l1n A-

Images