US3785637A - Device for the delivery, one by one, of pieces of film from a stack - Google Patents

Device for the delivery, one by one, of pieces of film from a stack Download PDF

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Publication number
US3785637A
US3785637A US00209119A US3785637DA US3785637A US 3785637 A US3785637 A US 3785637A US 00209119 A US00209119 A US 00209119A US 3785637D A US3785637D A US 3785637DA US 3785637 A US3785637 A US 3785637A
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US
United States
Prior art keywords
stack
pressure
delivery
film
top film
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
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US00209119A
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English (en)
Inventor
Der Does L Van
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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Publication date
Application filed by Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
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Publication of US3785637A publication Critical patent/US3785637A/en
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Classifications

    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/28—Locating light-sensitive material within camera
    • G03B17/32—Locating plates or cut films
    • G03B17/34—Changing plates or cut films

Definitions

  • ABSTRACT A device for the delivery, one by one, of rectangular pieces of film from a stack, the stack being incorporated in a storage magazine with a substantially fiat pressure plate keeping the stack by spring pressure against retaining members acting upon the top film, at least one of the retaining members being a pressure member that can move to and fro near one side of the stack, which pressure member can push one edge of the top film toward the opposite edge, as a result of which the top film is released from the stack over a large part of its surface.
  • the invention being that the direction of active movement of the pressure member coincides with the direction in which the films are delivered, that near the delivery end of the magazine a blocking device is provided which can be moved into the path of the top film, causing it to bulge during the active movement of the pressure member, and that furthermore a second blocking device is provided which, near the end of the active movement of the pressure member, is pressed behind the pushed-up edge of the top film of the stack, and presses it back, counter to the spring force acting upon, to such an extent that the top film is released from the retaining members and after removal of the first blocking device, can extend freely in one direction of delivery.
  • the invention relates to a device for the delivery, one by one, of rectangular pieces of film from a stack, which stack is incorporated in a storage magazine having a substantially flat pressure plate which keeps the stack pressed by spring pressure against retaining members acting upon the top film, at least one of which retaining members is a pressure member that can move to and fro near one side of the stack, which pressure member can push one edge of the top film toward the opposite edge, as a result of which the top film is released from the stack over a part of its surface.
  • the invention aims at providing a device which offers a greater degree of certainty in the film-removing operation than the prior-art devices.
  • a device of the kind stated in the heading shows the characteristic that the direction of active movement of the pressure member coincides with the direction in which the films are delivered; that near the delivery end of the magazine a first blocking device is provided which can be moved into the path of the top film, causing it to bulge during the active movement of the pressure member, and that furthermore a second blocking device is provided which, near the end of the active movement of the pressure member, is pressed behind the pushed-up edge of the top film of the stack, and presses it back, counter to the spring force acting upon it, to such an extent that the top film is released from the retaining members and, after removal of the first blocking device, can extend freely in the direction of delivery.
  • the two aforementioned blocking devices are positioned at the ends of a rocker.
  • the pressure member preferably has a surface of I contact with the top film which is provided with a proa way that when the stack is pressed the contact surface lies against the top film.
  • FIG. 1 shows a cross-section of an embodiment of the device according to the invention in accordance with the line I--I in FIG. 2;
  • FIG. 2 gives a rear view of the embodiment shown in FIG. 1,
  • FIGS. 3 and 4 show the same cross-section as FIG. 1, in different phases of the film-removing process, whilst FIG. 5 shows a detail of the pressure member.
  • Item 1 in the FIGS. is the stack of films the top one of which, denoted as 2, has to be delivered to the conveyance rollers 13.
  • the stack rests in a magazine shown in outline, on a pressure plate 3 having in the middle, over its entire breadth, a slight raised part 4 as a result of which the stack of films is to a slight extent preparatorily curved.
  • the pressure plate 3 is subject to the action of a compression spring 5, via an arm 6 having two pressure points 7 and 8, and thereby keeps the top film 2, when at rest, pressed against retaining members 9 and 10 (see FIGS. l and 2).
  • the retaining members 9 are firmly positioned guide blocks on the delivery side of the magazine.
  • Retainers 10 are situated on the opposite side and are executed in the form of pressure members for bulging the film. For this purpose they are movable in the direction of delivery of the films and are provided with a knife-edge 14 serving to push the top film onward.
  • the knife-blades 14 project to a somewhat lesser extent than the thickness of a film.
  • the pressure members 10 are fixed to arms 22, which are together rotatable around a spindle 24, being guided by a driven cam disk 11, interacting with a roller 23 and a compression spring 12.
  • rocker 16 mounted over the magazine is a rocker 16. This rocker can rotate around a spindle 18 and is controlled by the same cam disk 11, which for this purpose interacts with a roller 27 and a compression spring 19. Situated at the ends of the rocker are blocking devices 15 and 17.
  • FIG. 1 the pressure members 10 are in the extreme right position, whilst rocker 16 is turned as far as possible to the left. 0n turning the cam disk 11 to the right the pressure member 10 move to the left, during which the knife-edges 14 grip the edge of the top film. As blocking device 15 is now in the delivery path of film 2, the latter becomes bulged, which bulging extends over its entire breadth (see FIG. 3).
  • rocker 16 will turn to the right, as a result of which the second blocking device 17 comes to press behind the edge of film 2 on the stack of films.
  • the first result of this will be that the pushed-up rear edge of film 2 will not be able to fly back when it is released from the knife-edges 14.
  • the pressure point of the device 17 lies between the points of application 7 and 8 of lever 6, so that on further rotation of rocker 16 the film pack is pressed slightly downward in a direction approximately parallel to itself.
  • the bulged top film 2 is released from the retaining members 9 and 10.
  • the blocking device 15 is already removed from the path of delivery of the top film, the film can now extend in a forward direction. Then, guided by blocks 9, it comes with its front edge within reach of the conveyance rollers 13, as a result of which it can be further removed (see FIG. 4).
  • the pressure members 10 have meanwhile also returned to their initial position, being ready to push the next film onward in the direction of delivery.
  • these members preferably consist of a selfadjusting block which can for this purpose tilt around a spindle 21 in arm 22.
  • a roller 26 runs over the surface of the top film.
  • Behind the tilting spindle the block has contact face 25 the extension of which almost touches roller 26 and from whose face the knife-edge 14 projects.
  • Apparatus for delivery to a delivery station, one by one, of flexible rectangular pieces of film in a stack comprising a storage magazine, pressure plate means disposed below and in substantial parallel relation with said stack, a fixed stack retainer member disposed above said stack adjacent said delivery station, at least one movable pressure retainer member positioned above said stack adjacent the edge of said stack remote from said delivery station, spring means urging said plate toward said retainer members normally to press the uppermost sheet of said stack against said retainer members, a pusher member on said movable pressure retainer member positioned to engage the marginal edge of the uppermost film opposite said delivery end, means for shifting said movable retainer member toward said delivery station, a first movable blocking means adjacent said delivery end normally disposed in the path of the lead edge of said top film, said top film being bowed into spaced relation to said stack over a substantial part of its surface responsive to movement of said pressure retainer member toward said delivery end, second blocking means shiftable toward said pressure plate positioned to engage the upper edge of said stack behind said
  • a device wherein said pressure retainer member is mounted for pivotal movement about an axis parallel with said marginal edge engaged by said pusher, said retainer member including a roller positioned to engage said top film in leading position relative to said pusher, and a contact face directed toward said stack immediately adjacent said pusher whereby said pressure member is self-adjustably tiltable about said axis to maintain said contact face in engagement with the sheet being fed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Pile Receivers (AREA)
US00209119A 1971-01-04 1971-12-17 Device for the delivery, one by one, of pieces of film from a stack Expired - Lifetime US3785637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL717100002A NL146296B (nl) 1971-01-04 1971-01-04 Inrichting voor het stuksgewijs afgeven van rechthoekige filmbladen.

Publications (1)

Publication Number Publication Date
US3785637A true US3785637A (en) 1974-01-15

Family

ID=19812178

Family Applications (1)

Application Number Title Priority Date Filing Date
US00209119A Expired - Lifetime US3785637A (en) 1971-01-04 1971-12-17 Device for the delivery, one by one, of pieces of film from a stack

Country Status (10)

Country Link
US (1) US3785637A (pl)
JP (1) JPS5226127B1 (pl)
CA (1) CA941398A (pl)
CH (1) CH530649A (pl)
DE (1) DE2164212C3 (pl)
FR (1) FR2121072A5 (pl)
GB (1) GB1301970A (pl)
IT (1) IT945838B (pl)
NL (1) NL146296B (pl)
SE (1) SE361742B (pl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082260A (en) * 1975-09-24 1978-04-04 Toolex Alpha Ab Adjustable apparatus for separating an outermost label from a stack of labels
US5323918A (en) * 1993-05-20 1994-06-28 Moore Business Forms, Inc. Adhesive sheet separator
EP1090860A2 (en) * 1999-09-28 2001-04-11 Sankyo Seiki Mfg. Co. Ltd. Mechanism for and method of feeding cards
CN104846496A (zh) * 2015-05-19 2015-08-19 苏州爱立方服饰有限公司 一种细纱机的导向机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482146A (en) * 1982-11-24 1984-11-13 E. I. Du Pont De Nemours And Company Dispenser of single film sheets
JPS634105U (pl) * 1986-06-26 1988-01-12

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US492218A (en) * 1893-02-21 Paper-feeding attachment
FR346455A (fr) * 1904-09-23 1905-01-23 James Hall Perfectionnements apportés aux mécanismes d'entrainement du papier des presses à imprimer et autres machines analogues
GB190420471A (en) * 1904-09-22 1905-09-21 Augustus David Klaber Improved Feeding Devices for Duplicators and the like
DE1046359B (de) * 1955-02-16 1958-12-11 Grundig Max Blatteinschubeinrichtung fuer Magnettonblattgeraete
US3357700A (en) * 1963-06-21 1967-12-12 Fmc Corp Blank feeder with adjustable stack holder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE82431C (pl) *
DE1911218C3 (de) * 1969-03-05 1978-11-02 N.V. Optische Industrie De Oude Delft, Delft (Niederlande) Filmwechselvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US492218A (en) * 1893-02-21 Paper-feeding attachment
GB190420471A (en) * 1904-09-22 1905-09-21 Augustus David Klaber Improved Feeding Devices for Duplicators and the like
FR346455A (fr) * 1904-09-23 1905-01-23 James Hall Perfectionnements apportés aux mécanismes d'entrainement du papier des presses à imprimer et autres machines analogues
DE1046359B (de) * 1955-02-16 1958-12-11 Grundig Max Blatteinschubeinrichtung fuer Magnettonblattgeraete
US3357700A (en) * 1963-06-21 1967-12-12 Fmc Corp Blank feeder with adjustable stack holder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082260A (en) * 1975-09-24 1978-04-04 Toolex Alpha Ab Adjustable apparatus for separating an outermost label from a stack of labels
US5323918A (en) * 1993-05-20 1994-06-28 Moore Business Forms, Inc. Adhesive sheet separator
EP1090860A2 (en) * 1999-09-28 2001-04-11 Sankyo Seiki Mfg. Co. Ltd. Mechanism for and method of feeding cards
EP1090860A3 (en) * 1999-09-28 2003-02-26 Sankyo Seiki Mfg. Co. Ltd. Mechanism for and method of feeding cards
CN104846496A (zh) * 2015-05-19 2015-08-19 苏州爱立方服饰有限公司 一种细纱机的导向机构
CN104846496B (zh) * 2015-05-19 2017-04-12 苏州爱立方服饰有限公司 一种细纱机的导向机构

Also Published As

Publication number Publication date
FR2121072A5 (pl) 1972-08-18
DE2164212C3 (de) 1981-11-26
IT945838B (it) 1973-05-10
NL146296B (nl) 1975-06-16
GB1301970A (pl) 1973-01-04
DE2164212B2 (de) 1981-04-02
DE2164212A1 (de) 1972-07-27
JPS5226127B1 (pl) 1977-07-12
NL7100002A (pl) 1972-07-06
CH530649A (de) 1972-11-15
SE361742B (pl) 1973-11-12
CA941398A (en) 1974-02-05

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