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Publication numberUS2774472 A
Publication typeGrant
Publication dateDec 18, 1956
Filing dateAug 24, 1954
Priority dateAug 24, 1954
Publication numberUS 2774472 A, US 2774472A, US-A-2774472, US2774472 A, US2774472A
InventorsBadalich Frank C
Original AssigneeBell & Howell Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Slide carrying means
US 2774472 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



2,774,472 Patented Dec. 18, 1956 :United ,States A,Iatff11i @Hice ysLmE CARRYING MEANS Frank C. Badalich, Chicago, lll-,assignoto Bell & Howell Company, Chicago, Ill., a corporation of Illinois Y Applicaon August 24,.19s4seria1 No. 451,898

1T l (ci. fos-42) This invention relates generally to means for carrying stereopticon slides and i-t has particular relation to the provision of a construction that facilitates the storing of such slides.

Transparencies are mounted in various types of frames having overall dimensions of, for example, 2" x 2". The assembly is called a slide and it can be viewed by various devices. One such device is a stereopticon projector. For convenience of handling the slides, they are preferably mounted in a tray or magazine which can be positioned in a slide changer such as shown in Bennett et al. Patent No. 2,590,492, issued March 25, 1952, and from and to which the slides are withdrawn and replaced for viewing purposes.

Among the objects of this invention are: To provide snap acting means for holding a cover on the tray; to limit the extent that the cover can telescope over the tray so as to avoid touching the upper edges of the slides which project above the tray; and to provide simple and ecient means on the cover for indicating data respecting the slides in the tray.

Other objects of this invention will, in part, be obvious and in part appear hereinafter.

This invention is disclosed in the embodiment thereof shown in the accompanying drawing, and it comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth and the scope of the application of which will be indicated in the appended claims.

For a more complete understanding of the nature and scope of this invention, reference can be had to the following detailed description, taken together with the accompanying drawing, in which:

Figure 1 is a view, in side elevation, of a tray having a cover constructed in accordance with this invention positioned thereon;

Figure 2 is a view in end elevation of the assembly shown in Figure 1, the view being taken looking from left to right;

Figure 3 is a view in end elevation, similar to Figure 2, but showing only the end of the tray;

Figure 4 is a vertical sectional view taken generally along the line 4 4 of Figure 1, the outline of the tray being shown by broken lines;

Figure 5 is a vertical longitudinal sectional view of the tray and cover taken generally along the line 5 5 of Figure 2; and

Figure 6 is atop plan view of the cover showing how Vthe indicia bearing strip can be mounted on the underside.

Referring now particularly to the drawing, it will be observed that the reference character 10 designates, generally, an elongated tray having an open top 11, andV end walls 12 provided with U-shaped openings 13 and having upwardly facing shoulders 14 at the upper edges of the end walls 12 and downwardly facing shoulders 15 opposite the shoulders 14. The tray 10 preferably is 18. Formed integrally with the side walls 16 and the bottom wall 17 are septums 19 which serve to separate the several slides, a few of which are indicated at 20 in Figure 5. Along the lower edge of one of the sides 16 rack teeth 21 are formed for cooperation with a pinion l which, when rotated, serves to :move the tray 10 along the slide projectorv to permit the next slide to be shown.

It is desirable to enclose the open top 11 of the tray 10. For this purpose a transparent plastic cover, shown generally at 24, is provided, and as shown in Figures l, 2, 4 and 5 of the drawing, it is arranged to be telescoped with the tray 10. The cover 24 is a one piece molded product and includes end walls 25 which overlie the end walls 12 of the tray 10. The cover 24 also includes side walls 26 which overlie the side walls 16 of the tray 10. A top wall 27 constitutes an extension of the end walls 25 and the side walls 26 and it overlies the open top 11 of the tray 10.

It is desirable to limit the extent the cover 24 telescopes with the tray 10 in order to space the underside of the top wall 27 from the upper edges of the slides 20. For this purpose, downwardly facing shoulders 28 are provided by the lower edge of a rib 29 located at each end of the cover 24 and formed integrally with the respective end wall 25. It will be observed that the rib 29 extends a slight distance along each wall 26 at each end of the cover 24. The downwardly facing shoulders 28 on the ribs 29 engage the upwardly facing shoulders 14 at the ends of the tray 10, as shown more clearly in Figure 5, and thus limit the extent that the cover 24 can telescope downwardly over the tray 10.

In order to hold the cover 24 in position on the tray 10, a pair of upwardly facing shoulders 30 is provided on each end wall 25, as shown more clearly in Figure 4. These shoulders 30 are formed along the lower edge of each end wall 25 and are arranged to intert with the downwardly facing shoulders 15, as shown more clearly in Figure 5. The end walls 25 are suiliciently exible to permit the shoulders 30 to ride over the shoulders 14 at the ends of the tray 10 and to snap underneath the downwardly facing shoulders 15. The lower portions of the shoulders 30 are beveled in order to facilitate this action. When it is desired to remove the cover 24, one of the end walls 25 is sprung outwardly from the corresponding end wall 12 of the tray 10 a distance suicient to move the shoulders 30 out of registry with the corresponding shoulders 15. Then the cover 24 can be lifted off of the tray 10.

It is desirable to provide some simple and elcient means for indicating what is shown on each of the slides 20 that are positioned between Athe septums 19 on the tray 10. Advantage is taken of the transparent characteristics of the cover 24 to secure an indicia bearing strip 31 on the underside of the top wall 27, as shown more clearly in Figure 5./ The strip 31 may be a sheet of paper ruled transversely as shown with numbers 32 ing Septums forseparating slides which extend above the open top, the ends of said tray having Ushaped-openings 'and downwardly and upwardly facing shoulders in the f Y i 2,774,472

nient thereof and said U-shapedope'nings:extending-bevl5 low said end portions Vof saidV cover tofacilitatethe insertion of an operating member to engage the inner sideY of eitherendY portion-to'ex thevsame outwardly 'to effect disengagement ofy said shoulders.

References Cited in the le of this patent UNITED STATES PATENTS Sweden Novf2r8, 1939 Y t i

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US320814 *Mar 27, 1885Jun 23, 1885 Car-ticket or stamp box
US363083 *Feb 19, 1887May 17, 1887 Blank-depository
US1918987 *May 22, 1930Jul 18, 1933Seabold Sr Walter GBox or crate structure
US2007261 *May 28, 1934Jul 9, 1935Russell StoverSpecial package
US2458923 *Oct 3, 1945Jan 11, 1949Auten Howard LCigarette and match case
US2590492 *Aug 17, 1949Mar 25, 1952Three Dimension CompanySlide changing device for stereopticon projectors
US2644259 *Jun 14, 1949Jul 7, 1953Eugene E BeadleBox for pharmaceutical preparations
SE97509A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2900074 *Sep 26, 1955Aug 18, 1959Windman BrothersSlide tray for slide changers
US2938288 *Apr 26, 1956May 31, 1960Bell & Howell CoSlide carrying means
US2949814 *Feb 18, 1957Aug 23, 1960Bausch & LombSlide projector
US2998127 *Mar 14, 1960Aug 29, 1961Stewart Calvin RSterilizable and non-breakable micro slide container
US2998665 *Oct 30, 1957Sep 5, 1961Diemer William DCoupling structure for slide projector trays
US3009274 *Dec 18, 1958Nov 21, 1961Agfa AgSlide changer magazine
US3053146 *Jan 4, 1960Sep 11, 1962Honeywell Regulator CoPhotographic slide projector
US3069002 *Apr 26, 1960Dec 18, 1962Hart Edwin CPrint drier
US3101864 *Mar 9, 1961Aug 27, 1963Glickman Louis STransparent snap-on lid for meat display tray
US3120150 *Jul 3, 1959Feb 4, 1964Sawyers IncSlide projector
US3187890 *Oct 22, 1962Jun 8, 1965Sawyers IncProjector slide tray
US3312338 *Oct 23, 1964Apr 4, 1967Bell & Howell CoProtective photographic film package
US3344012 *Aug 1, 1963Sep 26, 1967Strom Oscar Richard Fredrik AfIntermediate carrier to be used in transfer of printed pictures
US3465090 *Dec 4, 1967Sep 2, 1969Rose Theophylus FosterElectrical junction boxes for christmas tree holders
US3481657 *Aug 10, 1967Dec 2, 1969Richard J FarrallMethod and device for storage of visual information
US3500995 *Jun 13, 1968Mar 17, 1970Forman Michael RalphNumismatic storage devices
US3966074 *Apr 28, 1975Jun 29, 1976Proto Production Plastics, Inc.Terminal box and cover
US4101027 *Aug 24, 1976Jul 18, 1978Basf AktiengesellschaftMagazine for a plurality of recording media
US4681728 *Mar 22, 1985Jul 21, 1987Westinghouse Electric Corp.Nuclear reactor
US4697720 *Oct 20, 1986Oct 6, 1987Proto-Tel, Inc.Terminal block cover
US4815601 *Sep 29, 1987Mar 28, 1989Fluoroware, Inc.Carrier for flat panel displays
US4863023 *Jun 20, 1988Sep 5, 1989Diamond Scientific CompanyShipping and storage container for syringes
US4930634 *Mar 13, 1989Jun 5, 1990Fluoroware, Inc.Carrier for flat panel displays
US4949848 *Apr 29, 1988Aug 21, 1990Fluoroware, Inc.Wafer carrier
US5042671 *Sep 20, 1989Aug 27, 1991International Business Machines CorporationVersatile product carrier
US5111936 *Nov 30, 1990May 12, 1992FluorowareWafer carrier
U.S. Classification206/456, 211/41.13, 312/234.3, 206/561
International ClassificationG03B21/54
Cooperative ClassificationG03B21/54
European ClassificationG03B21/54