US1356761A

US1356761A - Film-splicer

Info

Publication number: US1356761A
Application number: US209076A
Authority: US
Inventors: Frederick C Griswold
Original assignee: OLIVE A GRISWOLD
Current assignee: OLIVE A GRISWOLD
Priority date: 1917-12-27
Filing date: 1917-12-27
Publication date: 1920-10-26
Anticipated expiration: 1937-10-26

Description

' F. c. GRISWOLD.

FILM SPLICEH. APPLICATION FILED DEc. 21. 1917.

2 sIIIETs-SIIEET 1.

I non u o n nono n u n INVENTOR 16' www www BY W ATTORNEYS u F. C. GRISWOLI).

FILM SELICER. APPLICATION FILED DEc.27, 1917.

Patented oet. 26,1920..

2 sIIEETs-sI-IEET'z.

INV

BY l v 4a ATTORNEYS film clamp and the presser FBEDERCK C. GRISWLD, 0F, PORT JEFFERSON,

NEW YORK, 'Ass'IeNoa 1ro. omvn n.

FILM-spuma.

specification of Letters Patent. s

1,356,7611 f x Appiiluio'nmea neoember'271917. seria; No. 209,973.- 1 To aZZ whomftzna/J conce/m: i labinit'the center of thebase a lug`7 Be 1tV known that I, FREDERICK C. GRIS- uprises therefrom, in which lu isL seated a worin, a citizenpf the VUnited States, and transversely. arranged doublel s ear` block'S resldent of Port'deerson, injthe county of having a flat yhorizontal to face. Between Suffolk and State of :New 'Yor`k have in. fthe uprising lugs-13 and 4, hinge a presser vented new'and useful Impro'vement in -bar ,9 having a yieldingflat face 10 ar- 'Film-Splicers, of which he ollowing is a rangedtolbe brought into engagementwith s pecication.

The object of my i vention is tolprvide certain 'improvements in flm splicing` ina-- chin'es whereby the ,film .sections may easily and rapidly prepared for splicing. an spliced without .shifting the film sections lengthwise, meansl being employedy to so trim the ends of the ilmsections as lapping matchedportion's. Y

A 'practical embodiment of my iinvention is represented in the accompanying drawings, in -which-S ligure lis a plan view of the machine with oneofthe film clampslowered-and the other one raised; the presser bar also being raised, Y-

Fi 2 is a section taken in the plane of the `line I--II of Figilj, 'l

Fig. is aisectlonfta'kenz in the plane of the line II--III ofFig. 1, with the farther barv lowered,

. v Fig. 4 is a View in' perspective. with the A sections,

raised parts in the positions shown the projecting endvof one of v"the film "sections hasjbeenvtrimmed bythe knife .on the film clamp whchpis shown raised,

. Fig. 5 isan enlarged longitudinal section through the mac 'etaken inv the `plane ofthe lmeYe-,ViofFig 1, with both `fr lnlfclamps and 'the ,presser ba loweredY for splicing the overlapping endsof the two film Fig. 6 isa transverse section taken in the plane of the line VIe-'VI of Fig. 5, with the .upper jaw of; -the farther clamp member andthe lower jaw lowered, Fig. -7`shows the trimmed-'endof 011e film section in bottom plan with the cement applied thereto and the trimmed end of the.'

adjacent film section in top emulsion removed therefrom,

Fig. 8'is a top plan view of both film sections after the overlapping ends have been i The base ofithe machine is denoted by 1.

Lugs

2, 3, 4 and 5 u from'the base rlse back thereof,.w ich lugs-form supports for a bar 6,. r

plan' with the to leave overlatch is suchI (on the freeend of the'presser'bar to forcelit into snug block 8. In

in Fig. 1, Aafter v one on each side vofthe presser bar 9, bef' vertical' '.the base 1 in position and ofthe presser b ar 9 wh `liase 1 at the back.

their movement in that and lower' jaws of the be flushwith the top vface of the presseikbarisA swung wardly.

A' latch bar 11 is hinged yto the front of the' base 1 in position to engage the free end en the presser bar The Ashape of the hook 12 of the as to exert a cam-like action forwardly and down is lowered.

engagement with the present instance, this latch bar 11`is mounted -on a bar 13 supportedin lugs 14, 15 ,and spacing collars.13* are interposed betweenthelatch bar and lugs. This latch bar preferably has a slight yielding movement with the barf 1 3, to permit the latch bar to give suficiently to adapt it to films of varyingthicknesses'.

An adjustable stop 1 6 at the back -ofl the base is locatediin position to limit the up- Award and rearward movement of thepresser f' bar.

Two film clamps .are hinged on the bar 6, tween the

lugs

2, 3, andv 4, 5, respectively.

Adjustable '

stops

17, 18, are provide'v ,on to support the clamps intheir-lowe'red. position with the top faces oftheir lower'-

jaws

19 and 20 flush with. the top face of -theshear block- 8; Adjustable stops 21, 22, are

thereof-in position to en- 23, 24, respectively, of

gage the upper jaws the'iilm clamps upwardly and rearwardly to the limit vof lrection, The relative positions of the adjustable stops 21, 22,1 and the adjustable stop 16 are such that the meeting faces of the upper two .film clamps will the yielding face 10 of the bar 9 when the clamps and presser bar are thrown back.

JThe 'lower 'jaws 19 and 2O ofthe film clamps are provided with suitablehandles presser Patented oct. 2e, 1920.

shear. block f- S when the f located on the when the clamps are

swungthe shear

25, 26, respectively, and thel upper 'jaws 23, 'l

v24,l ofthe clamps areprovided with suitable handles 27, 28.

Theupper

jaws

23, 24, of the two'clamps are held either openedI or closed by springs 2 9, 30, which engage

cam surfaces

31, 32, respectively, of said upper jaws. These

springs

29, 30, are secured Ito the bottom faces of the lower jaws 19 and 2.0. The lower jaw 19l ofone film clamp is provided with a shearjblade. 33 which isl arranged to Acoact with the adjacent face of l mp is provided' xwith a shear blade 34arra'nged to coactfwth the vopposite face of the shear block` 8 for-trimming off'the rough projecting ends of adja cent ilmsecti'o'ns to be united as will hereinafter 'more .'fullyl appear. f

The low the film er jaws -19l and,20'o clamps "are channeled along their u p -faces to provide guides' for th film seiedns ed with upand the'lbwer'jaws are provi rising reglstering pins 35,' 3 6, for engaging the perforations along-that side of theiilm sections.

jaws

23, 24

The upperl` ,'-of theclampshave holes 37, 88, fori receivingthese registering 'pins'when the"jaws are closed In splicing film' sections together, several cycles of operations may be employed; For instance, presuming the film sections to be splicedwth the emulsion side'y uppermost,- the c cle of operations may be as follows: *One lm'clamp, foninstance .the film clamp- 19, 23,: may be swung back out of the way as also the`p'resser bar- 9. The upper j avv`24 of\ l the otherfilm cl of the lower jaw with the end tovbe trimmed projecting beyond Tthe shear block 8y suffici'ently to .bring the crossline of-one of.

e picturedivi'sions over the top face'of the.-

shear block. The film section will be held -in this positionlby the -registering pin' 3Q.-`

The upperV jaw -24 is thencl'osedQ. The other `cl'an'1p19, 23,1is then swung'jdownwardlythu's causing itsjcu'tter blade-33t()- portion ofthe film whi p 1 9, 23; isthen raisedj projectingbeyond thel shear block. .8` and with the cro visions locat block. This film section will be held the registering pinf35. The ipper jaw 23 is;

` then'closed. The `film vclamp 20,. -24;,-i s .tl 1en lowered,cat lsing' its cutter blade-34 to coact with the shear block"8,`to trim off the por- V tion 'of thel l projectin' beyond the shear block. -`lhis will leve tige ends ofthe two' byl the cam latch 1 shear off the ssline ofone of the picture di-l end ont bar 9. Y

/Inthev condition being described, with the film sections placed in the machine with the emulsion on top,'the emulsion on the pro -.70 jectingfend of the film section held the

clamp

19, 23, which is. resting upon" the shearblock 8, may be removed in any desired manner, as,for instance, by the treatment with a chemical which will remove the ,76 emulsion or by a `sc rzatperor by an abrasive implement, such as a block ofedampened felt. The cement may then be applied either `to the exposed# surface of the raised film' section or to the expo he filmclal'np 20,- 24

loweredv film section. may then be lowered, bringing they exposed .portion of this filmsection onto'the exposed portion of the film section held by the llowered .clamp'19,'23. i Jlie presser bar T9.' may then be swung downwardly and from' its free end engaged 1 tov force the yielding face' 1 ofthe presser bar snuglyA into en gagementI with the-overlapped 'ends of the/90 two filInsections. The parts may b ejmaintained in this position s Hicientlylong to ,permit the Iendsfto be firmly united when the presser bar andthe upper jaws of the two film clamp permit the removal of the united film sections. f The ,function of the yielding face 10 of the presser, bar is to insure an even pressure,

long the overlapping ends ofthe film sec- 'ons even should theyvary in thickness. -While I have described the operation of the machine in connection with uniting. the severed ends of two film sections, it i's obs viousthat it might as well begemployed for cutting'out a portion of afiln and joining i -the remaining portions or it mi htlb used for 'joining the ends -of two fdi erent films, 'gt-will seeny from'the above description .that 'thefiln'i sections arecontrolled'f'abso- '1'10 the beginning of the operations otheyi'eldng face 10 of the presser to I shift.

o f thefihnsections 'can bedoneveryxrapidly, 115

ItWll have' bee. lapped, thus v'obi'riatil'ig the necessity of shift- 120 ingl film s'ctions iunited." v It will alsohe seenthat one or both of thel 'cari'yingclamps may be swn into4 and out of engagementwith the shear b y as "\desired, thus' permitting readyprepara' ,'l tion'ofthe sectionsfor splicing- 'withoutlE the necessity of rolling back one or 4both j) ends =for treatment. v Itwill also be seenthat after 4the ends'ere4 1 30 also be seen that air'ter the two ends sed surface Yof 'the 80 s may be thrown back to` 95 n trimmed'they 'are-already overendwise fbeff p 1'e they aretrimmed, the projecting film sections/are supported by a flat surface with theJ yielding face of the' presser bar' when the clamps are raised.

It will be noted that the shear blades` are rather than by a separate operative device, the shear block serving both to coact with the shear blades and also with the presser bar in the cycle of' o4 erations. l v

hat I claim is:+ l

1. In a. film splicer, means for separately clamping two film sections, registered with. respect to each other, means for so trimming the ends of said sections -as pingI portions without endwise' movement of the sections, and meansf forl pressing the overlapping portions of the film sections tofgether. y

2. In a film splicer, a double shear blockand a pairof fihn clamps having cutting edges arranged tocoact with the shear block for trimming the ends of the film sections.

3. In a-film splicer, a double shear block and a pair of lm clamps having cutting edges arranged to alternately coact with the shear block for so film sections as to leave overlappingportions` in the plane of the shear block.

4. In a film splicer, a double yshear block, a pair I arranged toalternately coact with theshear block forA so trimming the ends of tvwfilrn sections as to leave'overlapping portions in the plane of the shear block. x

5. In a fum Splice?, a. double shear block,

a film clamp on each -side of the shear block,

each clamp having a cutting edge for trimming the end of the film section held by the other filml clamp, lthereby Vleaving overlapportions of both*l other film'y clamp,

to leave overla'ptrimming the ends off two v of film clamps having cutting edges v thetop of the shear p block# aId a presserL 'bar arranged to pressthe overlapping ends` together on Ithe shear 6. In a filmsplicer, y a film clamp on each side of the Shear block, each clamp having al cutting edge for trimming the end of the film sectionsh'eld by the thereby leaving overla ping ends' in the plane of the shear bloc anda presser bar'for pressing the overlapping ends together on the shear block.

7 .'In a film splicer, a double shear block, swinging'film clamps-0n opposite Asides of the block having c tting edges for trimming the ends of the clamps, and a swinging presser bar for pressing the overlapping ends together on the shear block.

8. In a lml splicer, a double shear block,

swinging lm clamps on opposite sidesbf the m sections held by the".

block having cutting edg'es for trimming v the ends of the film-sections held by the clamps, a swinging presser bar for pressing the overlapping ends together on the shear block, and stops movements of the clamps and presser bar.

9. In a lm splicer, v having a fiat top, a pair of4 film clamps located on opposite sides of the block, .each

for limiting theswingmg adouble shear block f comprising upper and lower swinging Jaws,

means for registering the top ofgthe `shear block and maintaining it in suchregl ter and means carried by each clamp for trimming the end of the film section carriedn by the other clamp, leavin overlapping, portions.`

10. n a ihnsplicer, a. double shear block having a fiat top, a 'pairl of film clamps 1o- Lcated on opposite sides of the block, each comprising uppe'nand lower swinging'jaws, means for\regist'ering each"iilm -section on block and maintainingl it in such register, means 'carried by eac clamp fior trimming the end of the l'm section carried. by the otherclampythreby leaving overlapping portions, and means for uniting said overlapping portions on the shearblock.

thereby nl invention I have signed my name this 22nd dav of-becember 1917.

- FREDERICK-o. 'GRIswoLD'.

each filin section on soA In testimony,that I claimthe Jforegoing asA