US3455441A

US3455441A - Projecting apparatus

Info

Publication number: US3455441A
Application number: US660854A
Authority: US
Inventors: John A Baring
Original assignee: Honeywell Inc
Current assignee: Pentax Corp
Priority date: 1965-08-16
Filing date: 1967-07-12
Publication date: 1969-07-15
Anticipated expiration: 1986-07-15

Description

July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS 18 Sheets-Sheet 1 Original Filed Aug. 16, 1965 7% Mmmm W /a A 20 v INVENTOR. JOHN A. BARING AGENT.

July 15, J. A. BARNG PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 2 will ' V llllllllllllu!J 4 l /4 INVENTOR.

JOHN A. BARING MM/mv AGENT.

July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16. 1965 18 Sheets-Sheet 5 AGENT.

July l5, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 4 E l G. 7 20 FIG. 8

INVENTOR JOHN A`. BARING BY u i g 4 AGENT.

July 15, 1969 J.A.BAR1NG 3,455,441

v PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 5 F l G, 9 50 f l l INVENTOR. JOHN A. BARING AGENT.

July 15, 1969 J. A. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 6 F l G. lO Ba! 52 /48 368 /364 INVENTOR JOHN A. BAR ING gumm- AGENT.

July 1s, 1969 J- A- BARING PROJ ECTING APPARATUS Original'Fled Aug. 16. 1965 18 Sheets-Sheet '7 INVENTOR JOHN A. BARING 513W www AGENT l July 15, 1969 J. A. BARING 3,455,441

PROJ ECTING APEARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 8 INVENTOR. JOHN A. BARING AGENT.

original Filed Aug. 1s, 19555 18 Sheets-Sheet 9 INVENTOR. JOHN A. BARING AGENT.

July 15, 1969 J. A. BARING l 3,455,441

PROJEGTING APPARATUS original Filed Aug. 1e, 1965 18 sheets-sheet 1o l XX i 52"5 La; l 34g 1mm) 226 220` 22% il? u L7 7 g l 1 l 22mm l l264 2/8' 248 this FIG.

INVENTOR. JOHN A. BARING www AGENT.

,JY ,15, 1.959 l J. BARING 3,455,441

PROJECTING APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 11 F l G. I6

INVENTOR. JOHN A. BARING BY E AGENTI J. A. BARING PROJECTING APPARATUS July 15, 1969 18 Sheets-Sheet 12 Original Filed Aug. 16. 1965 INVENTOR. JOHN A. BARING BSLMQgM/,mzw

AGENT.

J. A. BARING PRUJECTING APPARATUS July 15, 1969 y 18 Sheets-Sheet 15 original Filed Aug. 1e, 196s INVENTOR. JOHN A. BARING AGENT,

July 15, 1969 J. A. BARING PROJECTING APARATUs original Fned Aug. 1s, 1965 18 Sheets-Sheet 14 FIG.

INVENTOR. JOHN A. BARNG @Bim AGENT.

Juli' 15, 1969 .|.A. BARING 3,455,441 PnoJEcTxNG APPARATUS original Filed Aug. 1s, 1965 18 sheets-sheet 1s F'l G. 2o

INVENTOR. JOHN A. BARING gra# AGENT.

July 15, 1969 J. A. BARING 3,455,441

rRoJEcTme APPARATUS Original Filed Aug. 16, 1965 18 Sheets-Sheet 16 F l G. 2|

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PROJEGTING APPARATUS 1'8 sheets-sneet 1s INVENTOR. JOHN BARING AGENT.

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United States Patent Oflice 3,455,441 Patented July 15, 1969 U.S. Cl. 206-73 9 Claims ABSTRACT OF THE DISCLOSURE A compact slide projector tray having a front and.

back spaced apart annular face portions attached to a central hub. A series of radially positioned spaced-apart spacer lplates extending between the front and back face portions to guide the inner end of the slides inserted therein into contact with the outer surface of the hub and into contact with adjacent slides positioned therein.

This is a division of application Ser. No. 479,827 filed Aug. 16, 1965, now U.S. Patent No. 3,359,667.

The present invention relates to a photographic slide tray projector.

More specifically, it is an object of the present invention to disclose a compact, thin line projector having a ringshaped wall extending inwardly from the front of the projector to receive a removable rotary slide tray therein.

It is another object of the present invention to disclose a rotatable slide tray for the aforementioned projector that is provided with a series of unique, abnormally short, radially oriented spacer plates adjacent its outer circumferential rim to allow the inner ends of slides inserted therebetween to be mounted in extremely close proximity with one another adjacent the hub of a slide tray, thereby enabling many more slides to be mounted in a much smaller diameter tray than has heretofore been possible when other different types of slide tray constructions that are commercially available have been employed.

It is another object of the present invention to disclose a rotatable slide tray of the aforementioned type having a side ring portion thereof that has a circumferential portion forming an outer surface of the projector that is of a greater diameter than an opposite disc side portion that forms an inside projector portion to enable the slide to be more easily inserted and removed in a substantially frictionless manner into an in-gate projecting position than is possible when other conventional slide trays whose outer surface are of the same uniform diameter are employed for this purpose.

It is another object of the present invention to disclose a bendable transparent cup-shaped slide selecting indexing lid for the aforementioned tray that has a central cut out portion that is of a greater diameter than the hub of the tray about which the lid can be selectively rotated to line up a slotted rim slide emitting portion and a magnifying portion of the lid with any selected one of the slides in the tray.

It is another object of the invention to provide the aforementioned lid with several pairs of spaced-apart accurate lug portions protruding from an inner wall and base surface thereof to thereby allow the lid to be snapped into a slide retaining position on the tray and to provide guiding surfaces along which a rim surface of the tray can slide.

It is another object of the present invention to disclose a projector having a rotary slide tray of the aforementioned type in combination with a rotatably mounted moving magnet for easily attracting and lifting a slide from its radial position in the aforementioned tray in an outward direction away from the rim of the tray through the single slotted Iportion of the lid to an in-gate projecting position in a projector and with a great deal less wear and tear on the slide than is possible when other types of projector trays and slide lifting devices that are commercially available are employed for this purpose.

Prior to the present invention, it has lbeen the practice to employ power actuating apparatus such as an electric motor to move a slide in a continuous pushing manner from an in-tray position to a projecting position and to employ this same power actuating means to return the slide in a continuous pulling manner to the in-tray position. Experience has shown that when these power actuating means are used to push and/or to pull a slightly bent slide in this continuous manner between its in-tray and its projecting positions, the bent portion of such a slide invariably has a tendency to become jammed and further bent between the power actuating means and a stationary portion of the slide guide through which the slide is being continuously moved.

Continuously operated power actuated slide moving devices of this type also often jam a slide in the projector without the operators knowledge. When this occurs, the next slide that is continuously pushed into the projector is forced against the slide that is already in the projector and further bending of both slides occurs.

It is another object of the present invention to provide a slide moving apparatus for a projector which will vertically lift the top portion of the slide rather than using a continuous pushing force on a slide in moving it from its in-tray to its projecting position and thereby eliminate the aforementoned slide jamming problem that is present in other slide projectors that are commercially available.

It is another object of the present invention to disclose a slide moving apparatus for a projector which will return a slide that is in a projecting position to its in-tray position by allowing the slide to be dropped in a vertical plane toward and into the rim of its associated tray by the force of gravity acting on the slide rather than by the pulling force of a power operated slide moving device and thereby eliminate the aforementioned slide jamming that occurs when the aforementioned power actuated slide moving devices are used.

A better understanding of the present invention may be had from the following detailed description when read in connection with the accompanying drawings in which:

FIGURE l shows a prospective View of the projector;

FIGURE 2 is a top view of the projector;

FIGURE 3 is a left side view of the projector;

FIGURE 4 is a back View of the projector;

FIGURE 5 shows in detail a front View of a circular tray that is retained within the aforementioned projector;

FIGURE 6 is a back view of the tray;

FIGURE 7 is a side view of the tray;

FIGURE 8 is a section taken along the line 8--8 of FIGURE 6 with the top front plate removed;

FIGURE 9 shows a front view of the projector with its back plate removed;

FIGURE 10 shows a rear view of the projector;

FIGURE ll shows a vertical section taken along Section line 11-11 of FIGURE 9;

FIGURE 12 is a sectional view taken along the line 12-12 of FIGURE l0;

FIGURE 13 is a view partially in section taken along the line 13-13 of FIGURE l0;

FIGURE 14 is a view showing theI projector lens and how its associated cam-actuated lens carrier can move the lens from one position to another;

FIGURE l5 is a view along line 15-15 of FIGURE I4 showing the right end view of the lens carrier;

FIGURE 16 is a view of the main and secondary cams shown in FIGURES l2 and 13;

FIGURE 17 shows the position of the slide-lifting drive bar and shutter as this cam-driven, magnet-carrying drive bar is starting to move the slide in an upward position from the tray;

FIGURE 18 shows the show position of the slide lifting drive bar and shutter as the aforementioned camdriven, magnet-carrying drive bar has moved the slide into an in-gate slide projecting position;

FIGURE 19 shows the position of the slide-lifting drive bar and shutter as this cam-driven, magnet-carrying drive bar is starting to let the slide be returned by gravity to the tray;

FIGURE 20 shows the position of the slide-lifting drive bar and shutter as this cam-driven, magnet-carrying drive bar has moved the slide back into its original slide tray position and the tray is being rotated to bring the next slide in the tray to a twelve oclock position;

FIGURE 21 shows a top plan View of the slide guides as taken along the line 21-21 of FIGURE l1 and how a movable permanent magnet, such as is shown in FIG- URES 16 and 25, is attached to a slide;

FIGURE 22 shows how a damping device' can be connected to the solenoid actuator shown in FIGURES 10 and 13;

FIGURE 23 shows a right end view of FIGURE 22;

FIGURE 24 shows an up or show slide position of the index lock Cam and its associated linkage;

FIGURE 25 shows the lock cam of FIGURE 24 rotated counter-clockwise to a position in which no editing of the slides can take place;

FIGURE 26 shows the drive bar at its lowermost position and its lug thereof as having rotated the interlock cam further in a counter-clockwise direction;

FIGURE 27 is a circuit diagram showing the relationship that exists between all of the electrical components disclosed in FIGURES 9, 10, 13 and 16.

The rotary slide projector 10 shown in FIGURES 1 4 of the drawing is comprised of a front half casing portion 12 and a rear half casing portion 14. The front half casing portion 12 has a ring-shaped wall 16 extending inwardly from a lower front surface 18 thereof for retaining a rotary slide tray y20 therein. The upper part 22 and the top part 24 of the front casing portion 12 is of a separate angular single part construction and has a wall 26 forming an opening therein to accommodate the sliding of the slide editing gate 28 therethrough.

The right side 30 of the front half casing portion 12 of the projector 10 is shown having a projecting lens 32 extending therethrough. The entire base part 34 of the front half casing portion 12 is shown tapered in an upward and outward direction between the part that contacts the rear half casing portion 14 and the portion `of the base that contacts the lower front surface 18.

The entire base part 36 of the rear casing portion 14 is also shown tapered in an upward and outward direction between the part that contacts the front half casing portion 12 andthe portion of the rear end of the base part 36 that contacts the lower end of the back surface 38 of the rear half casing portion 14.

The upper left side of the projector 10 is formed by two contacting

wall portions

40, 42 that form respective parts of the front and rear

half casing portions

12 and 14. The lower left side of the projector 10 is formed of a single slidable door plate portion 44 having a handle 46 thereon that can be moved in an upward vertical direction to a position that is immediately behind its contacting

wall portions

40, 42. This door 44 provides access to a compartment (not shown), that contains a slide tray loading switch, a slide showing switch and a switch for either showing the slides in tray in immediate consecutive forward manner, a switch for showing the slides in the tray in a reverse sequence and an electrical power plug-in wire connection which is necessary to supply an electrical current to the projector 10.

The upper right and left

side wall portions

42, 48 of the rear half casing portion 14 of the projector 10 have portions that are integral therewith which extend upwardly therefrom to form a projector handle 50.

A push button 52 extends through an aperture 54 in the top surface of the rear half casing portion 14 of the projector 10 fto move a linkage hereinafter described which will adjust the position of two

legs

54, 56 against a level or non-level surface on which the projector 10 is placed.

These

legs

54, 56 are shown extending through the respective tapered

base parts

34, 36 of the front and rear

half casing portions

12 and 14 while the projector 10 is pivoted about stationary resilient foot 58 that is shown in FIGURE 3. The tapered base parts will thus enable the projector to be placed in a position in which the front half of the casing portion is upward and spaced away from a non-level support surface or vice versa.

ROTARY SLIDE TRAY The previously-mentioned rotary slide tray 20 shown in FIGURES 1 and 5-8 is complised of two space-apart circumferential side ring and

disc portions

62, 64 that are of different diameters and that are integrally joined together at their central portion by means of a hub 66.

A series of substantially equally spaced apart radially oriented

spacer plates

68, 70, 72, 74 are also joined together in an integral manner with the outer circumferential side -ring and

disc portions

62, 64. These spacer plates 67-74 are purposely positioned adjacent the circumferential ring and

disc portions

62, 64 of the tray 20 in order to allow the inner end of the Slides, for example the

slides

76, 78, and 82 shown in FIGURE 1 that are to be dropped from a position that is located outwardly from the peripheral portion of the tray into a load position so that their inner ends are in contact with the hub 66 and brought into extremely close proximity with one another.

It can thus be seen from FIGURE 1 that such a tray construction will enable many more slides to be mounted in a much smaller tray than has heretofore been possible when other types of commercially-available trays are used.

It can also be seen by observing FIGURE 1 that since the spacer plates, for example 68, 74, are positioned between spaced-apart side ring and

disc portions

62, 64 of the tray 20 that are purposely made of considerably different diameters, the slides can, therefore, be readily inserted and Iremoved from the tray 20 in a substantially frictionless manner. Such a tray construction, therefore, considerably reduces the frictional slide spacer rubbing effect that has heretofore been encountered with trays that have side ring portions that are of the same diameter.

The rotary slide tray 20 is also provided with a bendable transparent cup-shaped slide selecting indexing lid `84. The indexing lid 84 has a wall 86 forming an aperture in its central portion to enable the slide indexing tray 20 to be rotated about its outer hub portion 66.

An inner surface adjacent the outer circumferential part of the lid 84 is provided with three pairs of

arcshaped lug portions

88, 90, 92, 94, and 96, 98 which protrude from the inner side wall and the inner base surface of the cup-shaped lid 84. The lug portions 88-98 are located in a position with respect to the ring portion 62 that allows the lid to be snapped into a slide retaining position on the ring portion 62. These lug portions 88-98 also provide guiding surfaces along which the lid 84 can rotatably slide along the tray portion 62 when a slide indexing operation takes place.

The indexing lid 84 also has a circular flange portion 100 and a rectangular protuberance 102 that extends in an outward direction therefrom that acts as a removable twelve oclock indexing key when inserted into