US1413269A - Film splicer - Google Patents

Film splicer Download PDF

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Publication number
US1413269A
US1413269A US409319A US40931920A US1413269A US 1413269 A US1413269 A US 1413269A US 409319 A US409319 A US 409319A US 40931920 A US40931920 A US 40931920A US 1413269 A US1413269 A US 1413269A
Authority
US
United States
Prior art keywords
film
clamp
clamps
shear block
sections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US409319A
Other languages
English (en)
Inventor
Griswold Frederick Clark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OLIVE A GRISWOLD
Original Assignee
OLIVE A GRISWOLD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OLIVE A GRISWOLD filed Critical OLIVE A GRISWOLD
Priority to US409319A priority Critical patent/US1413269A/en
Priority to GB29024/20A priority patent/GB173897A/en
Priority to FR526241A priority patent/FR526241A/fr
Priority to DE1920341734D priority patent/DE341734C/de
Application granted granted Critical
Publication of US1413269A publication Critical patent/US1413269A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/04—Cutting; Splicing
    • G03D15/043—Cutting or splicing of filmstrips

Definitions

  • Fig. 1 represents a plan view of the ma chine with one of the film clamps lowered.
  • Fig. 2 represents a section 'on line II-II of Fig. 1.
  • Fig. 3 represents a section on line III-III- of Fig. 1, with the further film clamp lowered.
  • Fig. 4 representsthe machine in perspectiye with the parts in the positions shown in Fig. 1, after the projectlng end of one of the film sections has been trimmed by theknife on the film clamp which is shown raised.
  • Fig. 5 represents an enlarged longitudinal vertical section taken on line Y'-V of Fig. 1, with both film clamps lowered for splicing the overlapping ends of two film sections.
  • Fig. 6 represents a transverse section taken I on line V-IVI of Fig? 5, with the upper jaw of the "further clamp member raised and the lower jaw lowered.
  • Fig. 7 represents the trimmed end of one film section in bottom plan with the cement applied thereto, and the trimmed end of the adjacent fihn section in top plan with the emulsion removed therefrom.
  • Fig. 8 represents a top plan view of both 'film' sections after the overlapping ends have been brought together.
  • the base of he machine is denoted by 1.
  • Lugs 2, 3, 4, 5 uprise from the base at the backthereof, which lugs form supports for a bar 6. l
  • a double shear block 7 is seated at its rear end between the lugs 3 and 4 and at front end between the lugs 8 and 9. This shear Patented Apr. 18, 1922.
  • block 5 has a fiat horizontal top face. .Be-
  • tween the lugs 3 and-4 is hinged a presser bar 10 having a yielding fiat face 11 arranged to be brought into engagement with the tdp face ofthe shear block 7 when the presser baris lowered.
  • a latch bar-12 is hinged to the front of. the base 1 in position to engage the free end of the presser bar 10 when the presser bar is lowered between the lugs 8 and9 which act as guides for the bar.
  • the shape of the hook 13 of the latch bar is such as to exert a cam-like action on the freev end of-the presser barto force itinto snug engagement with the shear block.
  • this latch bar is mounted on a bar 14 supportedin lugs 15, 16; the colhrs 17 18 beinginterposed'between the latch bar and lugs.
  • the latch bar has a slight yielding movement with the bar 14 to permit the latch bar to give sufiiciently to adapt it to films of varying thicknesses.
  • the film clamps are hinged on the bar 6, one on each I side of the presser bar 10,- between the lugs 2,
  • Adjustable stops 19, 20 are pivoted on .the base in position to support the clamps in their lowered position with the top faces of theirlower jaws 21, 22
  • Adjustable stops 23, 24 are located 'on the base at the back thereof in' positionto enjaws 25, 26 respectively of gage the upper the film clamps.
  • the presser-bar l0 has a lost motion connection with the upper jaw 26 of the clamp 22, which lost motion connectionis herein shown as provided for by a pin 27 and a slot 28.
  • the lower jaws -2l, 22 of thefilm clamps are provided with suitable handles 29, 30, respectively, and the upper jaws 25, 26am provided with suitable handles 3.1 32 re spectively.
  • the handles '31, 32 are provided with spring catches 33, 34,'which serve the double function of locking the two jaws' of each clamp together and of locking the clamps to' their respective adjustable stops 19 and 20.
  • the lower jaws 21, 22 of the clamps are respectively provided with shear "plates 35, 36, which arearranged to coact with their adjacent edges ofthe shear block 7 for trimming 011' the rough projecting ends of adjacent film sections to be united, as will herelnafter more full appear.
  • the lower jaws o the clamps are'channeled along their upper faces to. rovideguides for the film sections and the lower jawsare provided with registering pins 37, 88for engaging the perforations along that side of the film sections.
  • the upper jaws 25, 26 of the clamps have holes for receiving these registering pins when the jaws are .scraped off from the film section, and second,
  • Lighting means such for instance, as an electric lamp 41 is mounted inthe base of the machine beneath the shear block and clamps. This light will materially assist in the proper matchingup of the filmsections' and also in manipulating the same.
  • the cycle of operations may be as fol ows:
  • the film clamp 21, 25 may be swung back out of the way.
  • the upper jaw26, of the other clamp, together with the presser bar 10 is raised and the film section is placed in the lower jaw 22 with its end projecting beyond the shear block 7 sufficiently to bring the cross line of one of the picture divisions over the top face of the shear block.
  • the upper Saw 26 and presser bar 10 are then lowere
  • the film clamp 21, 25 j is then swung downwardly, thus causing its cutter plate 35 to shear off the portion of the film which projects beyond the shear block.
  • the film clamp 22, 26 is then raised as is also the upper jaw 25 of the other clamp.
  • the other film section is then placed in the lower jaw 21 with its end projecting beyond the shear block 7 and with the cross line of one of the picture divisions located on the top face of the shear block.
  • the upper jaw 25 is then closed.
  • the clamp 22, 26 is then lowered, causing its cutter plate 36 to coact with the shear block 7 to trim off the portion of the film projecting beyond the shear block. This will leave the ends of the two film sec tions overlapping on the top face of the shear block.
  • the clamp 22, 26 may then be swung back, together with the presser bar 10'.
  • the emulsion may then be removed from the top surface of the projecting end of the film section held by'the clamp 21, 25, the combined spring guard and guide 39 serving to prevent the-emulsion being removed too far back from the end.
  • the film clamp 22, 26, together with the presser bar may then be lowered, bringing the exposed portion of this film section onto the exposed portion of the film section held by the clamp 21, 25.
  • the free end of the presser bar 10 may then be engaged by the cam latch 12 to force the yields ing face of the presser bar snugly into engagement with the overlapped ends of the two film sections.
  • the parts may be maintained in this position sufficiently long to permit the ends to be firmly united, after which the upper jaws of the two clamps, together with the presser bar 10 may be thrown back to permit the removal of the united film sections.
  • the spring catches 33, 34 will not lift the flowerjaws when the upperjaws and presser bar 10 are raised, the lower jaws, together with the mended film sections remaining in their lowered position.
  • the handles of'the lower jaws may be used.
  • the function of the yielding face of the presser bar is to ensure an even pressure along the. overlapping ends of the film sections even should they vary in thickness.
  • one or both of the film clamps may be swung into and out of engagement with the shear block as desired, thus permitting ready preparation of the film sections for splicing without the necessity of rolling back one or both ends for treatment.
  • cutter blades are carried by the film clamps themselves rather than by a separate operative device, the shear block servingboth to coact with the shear blades and also with the presser bar .in the cycle of o erations.
  • a shear block a shear block, a film carrying clamp arranged to move the film into and out of engagement with the block, means carried by the clamp arranged to coact with the shear block for trimming the end of the film, and a combined guard and guide carried by said clamp.
  • a film splicer a double shear block, a pair of film carrying clamps located on 0pposite sides of the block, each clamp being arranged to move a film section into and out of engagement withthe block, means carried by the clamp arranged to coact with the shear block for trimming the ends of the film sections, and a combined guard and guide carried by one of the clamps.
  • a shear block comprising upper and lower jaws, a stop, and a common means for locking the jaws together and to the stop.
  • a shear block comprising upper and lower jaws, a stop, and means carried by the upper jaw for locking the jaws together and to the stop.
  • each clamp comprising upper and lower jaws, stops for the clamps, and a common means'for locking the jaws of each clamp together and to its stop.
  • each clamp comprising upper and lower jaws, stops for'the clamps, and means carried by the upper jaw of each clamp .for locking the jaws of the clamps together and to their stops.
  • a double shear block film clamps on opposite sides of the block having cutting edges for trimming the ends vof the film sections held by the clamps, and
  • a double shear block film clamps on opposite sides of the block having cutting edges for trimming the ends of the film sections held by the clamps,-each clamp comprising upper and lower jaws, a presser bar having a lost motion connection with the upper jaw of one of the clamps for pressing the overlapping ends of the film sections together on the shear block, and a vcombined guard andvguide carried by the upper jaw of the other clamp.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US409319A 1920-09-10 1920-09-10 Film splicer Expired - Lifetime US1413269A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US409319A US1413269A (en) 1920-09-10 1920-09-10 Film splicer
GB29024/20A GB173897A (en) 1920-09-10 1920-10-13 Improvements in cinematograph and like film splicers
FR526241A FR526241A (fr) 1920-09-10 1920-10-19 Appareil pour le raccordement des films cinématographiques
DE1920341734D DE341734C (de) 1920-09-10 1920-10-23 Vorrichtung zum Kitten von Filmen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US409319A US1413269A (en) 1920-09-10 1920-09-10 Film splicer
GB29024/20A GB173897A (en) 1920-09-10 1920-10-13 Improvements in cinematograph and like film splicers
FR526241T 1920-10-19
DE341734T 1920-10-23

Publications (1)

Publication Number Publication Date
US1413269A true US1413269A (en) 1922-04-18

Family

ID=23619974

Family Applications (1)

Application Number Title Priority Date Filing Date
US409319A Expired - Lifetime US1413269A (en) 1920-09-10 1920-09-10 Film splicer

Country Status (4)

Country Link
US (1) US1413269A (fr)
DE (1) DE341734C (fr)
FR (1) FR526241A (fr)
GB (1) GB173897A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544082A (en) * 1947-08-11 1951-03-06 Maier Hancock Corp Film splicing machine
US2611724A (en) * 1947-07-21 1952-09-23 Sigbert L Wittenberg Film splicer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047015B (de) * 1956-02-28 1958-12-18 Bauer Eugen Gmbh Klebepresse fuer Filme

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611724A (en) * 1947-07-21 1952-09-23 Sigbert L Wittenberg Film splicer
US2544082A (en) * 1947-08-11 1951-03-06 Maier Hancock Corp Film splicing machine

Also Published As

Publication number Publication date
FR526241A (fr) 1921-10-05
DE341734C (de) 1921-10-07
GB173897A (en) 1922-01-13

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