US2616690A - Device for guiding thin bands - Google Patents

Device for guiding thin bands Download PDF

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Publication number
US2616690A
US2616690A US665666A US66566646A US2616690A US 2616690 A US2616690 A US 2616690A US 665666 A US665666 A US 665666A US 66566646 A US66566646 A US 66566646A US 2616690 A US2616690 A US 2616690A
Authority
US
United States
Prior art keywords
band
film
stop
edge
gutter
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
US665666A
Other languages
English (en)
Inventor
Haringx Johannes Adrianus
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust Co
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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2616690A publication Critical patent/US2616690A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/605—Guiding record carrier without displacing the guiding means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B1/00—Film strip handling
    • G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/42—Preventing damage to film due to abnormal operation of projector

Definitions

  • Such a control may, for example, be ensured by driving and/or braking the band in the proximity of the stop unsymmetrically with respect to the longitudinal direction.
  • a couple is exerted on the band in its plane with the result that the band tends to deviate laterally inthe manner set out above.
  • the stop can practically only be used where the path of the band is curved, for example where it passes over a cylindrical driving or guide roller.
  • the stop has an adequate, artificial rigidity only in situ, to prevent the band from curling at its edge. Where the'path of the band is straight it isnot advisable to use such a stop.
  • the object of the invention is to procure means which enable to arrange stops also along the straight parts of the band, which the band engages of its own accord during the transport without curling of the edge in that area.
  • the stop in the device according to the invention constitutes the bottom of a guttershaped member, the edge of the band passing between the side walls thereof.
  • the gutter walls in a lateral direction rigidly with respect to the stop, since a resilient arrangement, for example, entails the risk that the edge of the band is jammed during its travel and is consequently damaged in the space between the stop and the resilient side walls.
  • the rigid fastening may, for example, be obtained by making the gutter-shaped member in one piece. It is, however, preferable to construct the member from separate plates which are clamped together. This has the advantage that the stop can easily be given a definite curvature in a longitudinal direction of the film, which is desirable to avoid the diificulty that, in the case Hartford National Bank and Conn, as trustee 1946, Serial No.
  • the gutter walls may be so constructed as to embrace the band throughout its width. This is, however, not necessary if other means are available for this purpose, for example, when using the device according to the invention for cinematographic films at the picture gate, where the conventional resilient construction of the picture gate keeps the band sufficiently flat. In this case it sufiices that the film part is embraced which extends from the edge to the picture strip which yields the additional advantage that no trouble is experienced from the stop during exposure or reproduction. In the case of a 16 mm. small film it is, for example, suiiicient if a strip having a width of 1.5 mm. is gripped.
  • One of the gutter walls may, as an alternative, be longer than the other, for example when it forms part of the fixed wall of the picture gate. If the side of the other, shorter wall facing the film be rounded at its edge, the film can readily be introduced into the guide member.
  • Figs. 1 and 2 show diagrammatically how a moving band can be guided to ensure that it engages, of its own accord and with one of its sides, a fixed stop during its travel.
  • Fig. 3 is a cross sectional view and Fig. 4 is a plan view of the device according to the invention such as can be used for guiding a pictorial film, for example of regenerated cellulose, having a width of 16 mm. and a thickness of 40 microns.
  • a pictorial film for example of regenerated cellulose, having a width of 16 mm. and a thickness of 40 microns.
  • the reference numeral i desighates the unperforated film band which passes over a smooth roller
  • this roller is a loose guide roller which follows the movement of the film.
  • the stop is represented by a fiat plate and consequently does not pertain to the device according to the invention.
  • the film 5 is provided with a row of pictures 1.
  • the film engages a stop 8 which is rounded in the direction of length of the film and constitutes, according to the invention, the bottom of a gutter-shaped member, whose sidewalls are formed by plates 9 and 55 which, similarly to the stop 8, are preferably made from a wear-resisting material, e. g. spring steel.
  • a wear-resisting material e. g. spring steel.
  • the sidewalls are rigidly fastened to the stop 6 and are spaced apart by a distance slightly exceeding twice the thickness of the film so that any joints can readily pass the gutter.
  • the sidewalls When film parts without joints are passing the film will move through the gutter with some amount of play. This is, however, not objectionable because this play is small with respect to the part of the film width which is adjoined by the gutter walls and since by the rigid clamping together of the sidewalls and the stop there is no risk of the edge of the film being jammed between the sidewalls and the stop, as a result of the said play.
  • the sidewall 59 forms part of the picture gate i2 comprising the aperture it through which the projection light beam falls on the film. That side of the shorter gutter wall, which faces the film, is rounded at its end i l to facilitate the introduction of the film:
  • a device for guiding a thin band moving along in a fiat plane which comprises a driving means for said band, a fixed stop means adjacent one edge of the moving band, said stop means having a channel-shaped portion formed by side portions extending over the side of the band and a bottom surface rigidly secured to said side portions and adapted to be engaged by the aforesaid edge of the band, and brake means for applying a braking action to the band to produce a force urging the band against said bottom surface, said braking means being located between the center line of the film and the edge opposite to that adjacent to which the stop means are located, said brake means also being displaced from said stop means along the longitudinal axis of the band and on the side of the stop means remote from the driving means.
  • a device for guiding a thin band moving along in a fiat plane which comprises a driving means for said band, a fixed stop means adjacent one edge of the moving band, said fixed stop having a channel shaped portion formed by side portions spaced apart a distance slightly exceeding twice the thickness of the band and extending over the side of the band and a bottom surface whose edge is rounded in the plane of the direction of the longitudinal movement of the band, said bottom surface being rigidly secured to said side portions, and brake means for applying a braking action to the band to produce a force urging the band against said rounded bottom surface, said braking means being located between the center line of the film and the edge opposite to that adjacent to which the stop means are located, said brake means also being displaced from said stop means along the longitudinal axis of the band and on the side of the stop means remote from the driving means.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US665666A 1945-02-08 1946-04-29 Device for guiding thin bands Expired - Lifetime US2616690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE611530X 1945-02-08

Publications (1)

Publication Number Publication Date
US2616690A true US2616690A (en) 1952-11-04

Family

ID=3875314

Family Applications (1)

Application Number Title Priority Date Filing Date
US665666A Expired - Lifetime US2616690A (en) 1945-02-08 1946-04-29 Device for guiding thin bands

Country Status (5)

Country Link
US (1) US2616690A (ja)
BE (1) BE458158A (ja)
FR (1) FR926556A (ja)
GB (1) GB611530A (ja)
NL (1) NL68596C (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774593A (en) * 1952-12-02 1956-12-18 Armco Steel Corp Apparatus for guiding strip material
US2828125A (en) * 1953-12-16 1958-03-25 Western Electric Co Web guiding and tensioning device
US3469545A (en) * 1967-06-14 1969-09-30 Union Special Machine Co Conveyor sewing unit with shiftable top feed belt and work loading arrangement
US4265176A (en) * 1979-06-01 1981-05-05 Kabushiki Kaisha Sato Kenkyusho Clog preventive device for label printing and applying machine
US5488467A (en) * 1994-06-24 1996-01-30 Rjs, Inc. Laser printer paper handling system
US20020181961A1 (en) * 1997-03-24 2002-12-05 Fuji Photo Film Co., Ltd. Conveying roller for photosensitive material and method of producing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200175A (nl) * 1981-04-13 1982-11-01 Philips Nv Magneetbandcassetteapparaat alsmede megneetkopeenheid toepasbaar bij een dergelijk apparaat.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1622336A (en) * 1925-02-27 1927-03-29 Fretz Moon Tube Company Apparatus for manufacturing continuous tubing from separate reels of skelp
US1680190A (en) * 1924-04-17 1928-08-07 Fisk Rubber Co Web-guiding mechanism
US2012130A (en) * 1930-12-18 1935-08-20 Rca Corp Film guiding device
US2082799A (en) * 1935-02-28 1937-06-08 Butterworth H W & Sons Co Cloth guider
US2102895A (en) * 1935-06-27 1937-12-21 United Res Corp Means for driving and guiding film
US2142606A (en) * 1936-02-10 1939-01-03 Debrie Andre Leon Vict Clement Cinematographic apparatus
US2190413A (en) * 1938-05-02 1940-02-13 Davidson Mfg Corp Folding machine
US2253258A (en) * 1938-08-26 1941-08-19 Paillard Et Cie S A Film gate adjustable for films of different widths
US2464173A (en) * 1945-11-02 1949-03-08 Broadmeyer Albert Conveyer and guide

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1680190A (en) * 1924-04-17 1928-08-07 Fisk Rubber Co Web-guiding mechanism
US1622336A (en) * 1925-02-27 1927-03-29 Fretz Moon Tube Company Apparatus for manufacturing continuous tubing from separate reels of skelp
US2012130A (en) * 1930-12-18 1935-08-20 Rca Corp Film guiding device
US2082799A (en) * 1935-02-28 1937-06-08 Butterworth H W & Sons Co Cloth guider
US2102895A (en) * 1935-06-27 1937-12-21 United Res Corp Means for driving and guiding film
US2142606A (en) * 1936-02-10 1939-01-03 Debrie Andre Leon Vict Clement Cinematographic apparatus
US2190413A (en) * 1938-05-02 1940-02-13 Davidson Mfg Corp Folding machine
US2253258A (en) * 1938-08-26 1941-08-19 Paillard Et Cie S A Film gate adjustable for films of different widths
US2464173A (en) * 1945-11-02 1949-03-08 Broadmeyer Albert Conveyer and guide

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774593A (en) * 1952-12-02 1956-12-18 Armco Steel Corp Apparatus for guiding strip material
US2828125A (en) * 1953-12-16 1958-03-25 Western Electric Co Web guiding and tensioning device
US3469545A (en) * 1967-06-14 1969-09-30 Union Special Machine Co Conveyor sewing unit with shiftable top feed belt and work loading arrangement
US4265176A (en) * 1979-06-01 1981-05-05 Kabushiki Kaisha Sato Kenkyusho Clog preventive device for label printing and applying machine
US5488467A (en) * 1994-06-24 1996-01-30 Rjs, Inc. Laser printer paper handling system
US20020181961A1 (en) * 1997-03-24 2002-12-05 Fuji Photo Film Co., Ltd. Conveying roller for photosensitive material and method of producing the same
US6851644B2 (en) * 1997-03-24 2005-02-08 Fuji Photo Film Co., Ltd. Conveying roller for photosensitive material and method of producing the same

Also Published As

Publication number Publication date
FR926556A (fr) 1947-10-06
GB611530A (en) 1948-11-01
BE458158A (ja)
NL68596C (ja)

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SU32298A1 (ru) Приспособление дл прот гивани кино пленок с звуковой записью