US 3556650 A
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United States Patent US. Cl. 353-21 7 Claims ABSTRACT OF THE DISCLOSURE A slide shelf is employed as a top wall portion of a slide projector to enhance the expeditious handling of slides without spillage and soiling during slide editing, loading, storing, sorting and previewing.
It is an object of the present invention to provide a slide storage shelf for the top housing of the slide projector.
It is another object of the invention to provide a shelf of the aforementioned type having a pair of side walls to retain the width of the slides removably positioned therebetween, a rough surface formed on the base of the shelf to retain the lower edge surface of the slides from sliding therealong and a wall to provide a surface against which the slides can be stacked against one another in an inclined position.
It is another object of the present invention to provide a slide storage shelf of the aforementioned type whose base is provided with a smooth tapered portion extending downwardly into a groove forming a track into which a selected one of said slides in said stack can be readily positioned for movement into and out of alignment with an adjacent slide holder for rapid viewing on a preview screen.
It is another object of the present invention to disclose a storage shelf of the aforementioned type that will more conveniently expedite the handling of slides during an editing, loading, sorting or previewing operation.
A better understanding of the present invention may be had from the following detailed description when read in connection with the accompanying drawing in which:
FIG. 1 is a view showing how slides are stored at an including angle in the storage shelf and further shows how a slide can be moved in either direction along the track into and out of a preview position; and
FIG. 2 shows a top view of the slide storage shelf and slide track.
The slide storage shelf is shown in FIG. 1 and FIG. 2 as having a base plate 12. This base plate 12 has a rough upper surface which is preferably of a multiridge construction 14 to retain the base edges of each of the slides 16 against sliding thereon.
The shelf 10 has opposite vertical tapered side walls 18 and 20 to retain each of the slides 16 in a stored position on the base portion 12 between a pair of adjacent ridges 14, 14.
The rear portion of the tapered walls 18 and 20 are joined together as a unitary part by means of an inclined end wall 22 of the shelf 10' to allow all of the slides 16 retained within the confines of the walls 18, 20 and 22 to be held in an inclined relation against one another and at substantially the same inclination as the wall 22 against which the innermost slide engages.
The base plate 12 has a declining surface portion 24 extending away from the fiat rough surface 14 which terminates in a grooved out portion forming a track 26. The side walls 18 and 20 are inclined downwardly from the end wall to the groove to provide more convenient handling of the slides.
The shelf 10 has another declining surface 28 which extends from the forward flat slide storage portion 30 of the base plate 12 and which terminates in the previously mentioned track 26.
It should be understood that the slides can be stacked in a flat horizontal position on top of one another on the surface 14 instead of having them lean in an inclined direction toward the wall 22.
Furthermore, if it is desired to remove a slide in the projector 31 it can be done by pulling the handle 32 of manually movable push-pull edit slide holder 34 to its out of projector position as shown in FIG. 1. The slide that is to be removed can then be manually pulled out of the edit slide plate holder 34 by gripping its left edge and pulling it in a direction toward the left end of the slide track 26 through the wall 36 formed in the side wall 20.
The removed slide can then be placed in a horizontal position on the flat portion 30 of the base plate 12 or on the top of any other discarded slide that may already be on the shelf portion 30.
The lower edge of another one of the slide 16 that is desired to be shown can then he slid along the inclining surface portion 24 and into a Vertical position in the track 26. This slide 16 can then be slid along the track 26 to the right into the edit slide holder 34. The slide holder can be lowered by pushing the handle 34 in a downward direction into the projector Where it can be viewed on the previous screen 38 moved into a projecting position or loaded into a slide tray 35.
It can thus be seen that a slide storage shelf has been provided which is beneficial in expediting the handling of slides during an editing, loading, storing, sorting or a previewing slide operation without spillage and soiling.
The embodiments of the invention in which an exelusive property or privilege is claimed are defined as follows:
1. A slide projector housing wherein the top of the housing is comprised of a slide storage shelf, a base plate having a rough surface portion to inhibit the bottom edges of the slides from sliding therealong, side walls positioned in spaced apart relationship to one another to accommodate the width of said slides therebetween, an end wall extending between said side walls to support said slides in inclined relation with one another, the base plate having a smooth surface portion inclined in a downward direction between said side walls that extends from the end of said rough surface portion and terminates in a grooved out portion forming a track for supporting the bottom side edge of any selected one of said slides that is positioned therein in a vertical position and wherein the inclined portion tends to guide the slide into the grooved out portion.
2. The slide storage shelf as defined in claim 1 wherein a plurality of spaced apart ridges are employed to form the rough surface of the base plate.
3. The slide storage shelf as defined in claim 1 wherein the side walls are inclined in a downward direction away from said end wall to provide a more expeditious handling of the slides stored therebetween.
4. The slide storage shelf as defined in claim 1 wherein one of the side walls has an aperture formed therein to accommodate the passage of one of said slides therethrough and into a slide editing gate that is in alignment with said track.
5. The slide storage shelf as defined in claim 1 and wherein the base plate has a second smooth surface portion inclined upwardly from the track and terminating in a flat surface portion to accommodate the stacking of slides thereon.
6. The slide storage shelf as defined in claim 1 and wherein the base plate has a second smooth surface portion inclined upwardly from the track and terminating in a fiat surface portion to accommodate the stacking of slides thereon and the flat surface portion of the base is provided with a second end wall extending upwardly from one end thereof to deter endwise movement of slides that have been mounted on said flat surface.
7. The slide storage shelf as defined in claim 1 wherein the base plate has a flat surface portion to accommodate the stacking of slides in a horizontal stacked position thereon.
References lited V UNITED STATES" PATENTS 2,119,773 6/1938 Buckner 206.84 3,263,558 8/1966 Golden 353-101 3,336,836 8/1967 Gould et a1. 35321 SAMUEL S. MATTHEWS, Primary Examiner S. L. STEPHAN, Assistant Examiner US. Cl. X.R.