Dispenser for sheet like material

Claim 2

A daylight film loader for a normally closed radiographic film cassette adapted to be opened for the loading of fresh film therein, which comprises: 1. a generally light-tight housing, 2. a magazine section in said housing for holding a supply of fresh film to be loaded, 3. a loading section in said housing in generally adjacent relation to said supply section, said loading section being adapted to be opened for the introduction therein of a cassette into opened loading position and be closed when the cassette is in loading position,

Claim 3

dispensing means operative in said magazine section to deliver film from said magazine section into said cassette, 5. light shielding means disposed generally between said two housing sections for movement between an operative closed position isolating said magazine section from said loading section and an open position in which the two sections are in communication, and 6. operating means for said shielding means effective in response to the arrival and departure of said cassette to and from its loading position to move said shielding means to and from its operative closed position.

Claim 4

dispensing means operative in said magazine section to deliver film from said magazine section into said cassette, 5. light shielding means disposed generally between said two housing sections for movement between an operative closed position isolating said magazine section from said loading section and an open position in which the two sections are in communication, and 6. operating means for said shielding means effective in response to the arrival and departure of said cassette to and from its loading position to move said shielding means to and from its operative closed position.

Claim 5

The cassette loader of claim 1 wherein said loading section includes a cassette carriage disposed for movement to and from a projected exteriorly accessible position to the placement of a cassette therein from and to a retracted position with the cassette in loading position and at which said loading section is closed.

Claim 6

The cassette loader of claim 2 in which said carriage has mounted thereon actuating means for operating said shielding means operating means as said carriage reaches its retracted position.

Claim 7

The cassette loader of claim 1 wherein said operating means includes biasing means returning said shielding means to its closed position when said cassette departs from its loading position.

Claim 8

The daylight film loader as in claim 1 wherein said supply section has an opening at an end thereof opposite said light shielding means for the introduction therein of a magazine containing a stack of sheets of fresh film, said magazine comprising a generally shallow container having side walls and front and back end walls upstanding from a planar bottom wall on which said stack of sheets rests, and a top wall normally closing said container against entry of light, at least a front portion of said top wall being supported for relative sliding movement in the plane of said top wall to provide an opening adjacent the front container end for removal of the film sheets therefrom, said slidable top wall portion having a projection extending therefrom adjacent its front edge, and said loading section having detent means operable to engage said projection to slidably open and close said wall portion when said magazine is introduced into and removed from said loading section through said end opening therein.

Claim 9

The daylight film loader as in claim 5 wherein said projection comprises an exteriorly projecting lip and said detent means comprises opposed front and back detent surfaces engagable with opposite sides of said lip upon movement of said magazine container in opposite directions, said back detent surfaces being movable out of the path of said lip to permit passage of the lip therebeyond.

Claim 10

The daylight film loader as in claim 6 including inclined cam surfaces associated with said back detent surfaces for engagement by said lip to displace said back detent surfaces for passage of said lip therebeyond.

Claim 11

The daylight film loader as in claim 5 wherein said container has a slotted rear top wall section fixed to said side and back walls for telescopingly receiving said slidable front top wall section.