US1001965A

US1001965A - Lantern-slide-moving device.

Info

Publication number: US1001965A
Application number: US62594011A
Authority: US
Inventors: Joseph Leopold
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-05-09
Filing date: 1911-05-09
Publication date: 1911-08-29
Anticipated expiration: 1928-08-29

Description

J. LBOPOLD. LANTERN SLIDE MOVING DEVICE.-

APPLIOATION FILED MAX 9, 1911.

Patented Aug. 29, 1911 I mums-sum 1.

. INVENTOR 4: BY j' I 4170mm v "Iii-I /a w J. LEOPOLD.

LANTERN SLIDE MOVING DEVICE. APPLIUATION FILED MAY 9; 1911 Patented Aug. 29, 1911.

2 sums-51mm z.-

WITNESSES mm f tnvmnn s'rarns PATENT ornicn.

JOSEPH LEOPOLD, OF SOUTH BETHLEHEM, PENNSYLVANIA.

.LANTERN-SLIDE-MOVING DEVICE.

Specification of Letters Patent. Patented Aug; 299, 1911, Application filed Ma 9, 1911. Serial No. 625,940.

To all whom it may concern:

Be it known that I, Josnrn LEOPOLD, a subject of the King of Hungary, and resident of South Bethlehem, in the county of Northampton .and State of Pennsylvania, have invented certain new and useful Improvements in Lantern- Slide-Moving Devices, of which the following is a specification. Y

or other person may cause a series of slides or views to be automaticallybrought into operative relation with and removed from.

the source of light and the objective of the stereopticon.

One of the objects of the invention is to provide a simple and cheap device of. this class, which can be easily handled and which is efiicient in its operation.

Another object of the invention is to con struct, an apparatus of this class having a storage vessel, into which the slides or views are automatically. placed after the pictures thereon have been thrown on the. screen.

A further object of the invention is to devise a multiple shutter mechanism which is automatically drawn in front of the opening through which the ictures are pro ected during a changing o the slides or views.

With these and other objects in view, which will'appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter fully de scribed, pointed out in the appended claims and illustrated in the accompanying drawings, it being-understood that many changes may be made in the size and pro ortion of the several parts and minor details of construction without departing from the spirit or sacrificing anyof the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawin s, in which Figure 1 is a ront elevation of a lantern slide moving device constructed in accordance with thepresent invention; Fig.2 is a rear elevation thereof; Fig. 3 is a section taken on 'line'3--3 of Fig. 2; Fig. 4 is a section taken on line 44' of Fig. 2; Figs. 5 and 6 are front elevations-of the shutters of the device; and Fig. 7 is a side elevation of the The present invention relates to an appa-' rates to be used with stereopticons or like lanterns, and by means of which a lecturer ets or bearings 40,

In the drawings, the numeral 10 designates-a base plate, upon which is mounted a lantern 11, of any suitable type, and the objective 12 of the stereopticon. Between the.

lantern and the objective is arranged a substantially vertical frame 13, comprising a plate member having an opening 14, wh ch is of a size to accommodate a slide 15. Theframe 13 is mounted upon standards or legs 16, which are attached tothe base plate 10. 'The slides 15 are placed into a receptacle 17 which is fastened to the rear of the frame 13, and comprises a slanting bottom 18, sides 19, the upper edges 20 of which run substantially parallel with the inclined bottom 18, and an end 19'. The. slides arelocated in this receptacle insubstantially vertical positions, and in the rear of the series of slides is placed upon the inclined edges 20 of the sides 19 of the receptacle a roller 21, which will cause the slides to move, one after the other, into the opening 14 of the frame 13,so that their pictures can be thrown upon a screen in the usual -manner. The

frame 13 is provided upon its upper vend with a cross strip 22 and along the vertical edges of the opening 14 with the

vertical strips

23, 23, which latter project over the edges of the opening a little distance toward the vertical center line of the opening 14,

and provide thereby a guideway for the slides, preventing at the same time an outward movement of said slides relative to the plate 13. To the frame 13 are furthermore attached two vertical posts 24:, 24, on which is slidably arranged a feeding plate 25,

adapted to project into the guideway for the slides. The feeding plate has an upwardly extending lug 26, which is pivoted at 27 to a bellcrank lever 28,the latter being fulcrumed at 29 to a vertical standard 30,wh1ch 1s secured to the frame 13. The other end of the bellcrank lever 28 is pivotally fastened at 31 to one end. of a bar 32, the other slotted end 33 of which is engaged by a pin 34, carried by a lever 35. "This 181761115 fiaedly attached to a spindle 36, which is oscillatably mounted in the frame 13 and provided with an operating handle 37.

Near-to the lower and upper ends of the opening 14 are oscillatably arranged two shafts 38 and '39.,suitably journaled in brack- 4:0,and carrying at their inner ends pmions i1 and-a2, respectively,

which mesh with

gear segments

43 and 44,- respectively. 'Theshafts of these segments spectively, which lugs extend through a

distures

62 and 63, respectively, the sizes of tance which corresponds to about the width of the opening 14 in the frame 13.

The shutter mechanism, which is automatically operated to close the opening 14 during the changing of the slides or views, comprises two

frames

59 and 60, which are slidably arranged one behind the other in

guides

61, 61, which latter are attached in any suitable manner to, the frame 13. The

frames

59 and 60 are provided with aperwhich correspond to the size of the opening 14. In these frames are furthermore arranged colored glass plates and 66, respectively. To the

frames

59 and 60 are pivoted

bars

67 and 68, the other ends of which are in a similar manner attached at 69 and 70, respectively, to a lever 71, which is rigidly attached to the spindle 36. These two shutters are mounted in the guides 61 in such a manner and the relations of their apertures and glass plates are such that the

apertures

62 and 63 register with the openmg 14 when the operating handle 37 is in its extreme left-hand position (Fig. 1). The two colored glass plates 65 and 66, on the other hand, close the opening 14 when the operating handle 37 is shifted toward the right. The glass plates 65 and 66 slide toward each other in closing the opening 14, so that the picture upon the screen will gradually disappear, whereby the unpleasant effect on. the audience, due to the movement of the view-on the screen, is avoided.

The slides, when discharged from the apparatus, fall into a vessel 72, which is mounted upon rollers 73, traveling upon rails 74, which latter are attached to the base plate 10 of the apparatus. As the slides one after the other drop in substantially vertical positions into the vessel, it is necessary to move the latter gradually toward the lantern 11. The mechanism for effecting this movement comprises a lever 75, fixedly attached to the oscillating spindle 36. and connected by means of a pin 76 which operates in a slot 77 of a bar 78 with the latter. The bar 78 is pivoted at 79 to atwo armed lever 80, fulcrumed at 81 to one of the standards 16. This lever engages a pawl 82, pivoted at 83 to a standard 84, which isv attached to the base plate 10. The pawl meshes 'with a ratchet wheel 85, upon the shaft 86 of which Springs 55 and 56' 57 of the bar 38.

is mounted a pinion 8'7, meshing with a rack 88 which latter is fastened to one of the si es of the vessel 72.

The operation of the device is as follows: A series of slides 15, containing the pictures of the set, .is put with the pictures upside down in the receptacle 17, and the roller 21 placed upon the inclined sides of the receptacle in the rear of said slides." When the parts are in the position shown in Fig. 1 of the drawings, the lug 57 upon the bar 38 is held in its vertical osition, as clearly shown in Fig. 1 of the rawi gs. The ing 58 of the bar 39 is in this sition arran ed horizontally and supports one of the sli es, and the

apertures

62 and 63 in the

frames

59 and 60 register with the o ening 14 in the frame 13. The picture is t 1us thrown onto the screen. When it is intended to display another picture, the operating handle 37 is shifted to its extreme right-hand position, whereby the feeding plate 25 will be lifted into the position shown in Figs. 2 and 3 of the drawings. In doing this, as soon as the shifting of the handle is commenced, the spring 55, which is in its extended position when the arts are in the positions shown in Fig. 1, Wlll oscillate the gear segment 43, which in turn will oscillate the shaft 38 so that the lug 57 of this shaft will be brought into its horizontal osition, and at the same time the bar 50 Wlll oscillate the gear segment '44, whereby the lug 58 of the bar 39 will be brought into its vertical position, thus releasing the slide which had been held thereby in the opening 14 of the apparatus. This slide falls into the vessel 72. The shifting of the lever 37 forces at the same .time

the shutter frames 59 and 60 into the posi-.

tions shown in Fig. 2 of the drawings, the colored glass plates 65 and 66 gradually covering each other until they shut fully the opening 14, whereby the downwardmovement of the picture on the screen cannot be seen by the audience. As soon as the feeding plate 25 is withdrawn from the guideway for the slides, the roller 21 is free to act and will thereby feed a slide into said guide- Way on the now horizontally arranged 111g The operating handle 37 is then shifted back to its normal position shown in Fig. 1 of the drawings, whereby, as its movement is started, the spring 56 will immediately force the lug 58 into its horif zontal position, while the connection between the spindle 36 and the gear 43 will bring the lug 57 mto' its vertical position, releasing thereby the slide thereon. By a further movement of the operating handle, the feeding plate causes the slide to move onto the now horizontally arranged lug 58. At the same time, of course, the

frames

59 and 60 are shifted so that their

apertures

62 and 63 register with the opening 14 in

the'plate pr g

1,3 permlttlng e picture to "be thrownonto the screen. The pawl 82 is also actuated by this movement of the operating handle 37, and thereby the receptacle 72 advanced intoa position to receive the next 5 slide. It is thus apparent that, to change the views, it is only necessary for the operato'r to shift the operating handle 37 once to the right and back to the left.

lVhat I claim is a 1. In an apparatus .of the character de-v scribed, the combination with a frame including a vertical plate having an opening therein through which the-views are thrown on a screen, guideways .forlthe slides along the vvertical edges of said opening, a recep tacle for the slides rovided with means for automatically feedlng the slides into said guideways, oscillatable holding means for the slides above and below said opening, a

reciprocatable feeding plate forforcing' the slides in. said guideways onto the lower holding ating slmultaneously said feedingplate and said holding means, substantially as specie 2. Inan apparatus of the character described, the combination with a frame including a vertical plate having an opening therein through which the views are'thrown on a screen, guideways for the, slides along the vertical edges of said opening, a recepa tacle for the'slides having an inclined bottom and bein provided with means for automatically feeding the slides into said guideways, holding means for the slides- 40 said feeding plate and said holding means,

substantially as specified. 3. In an apparatus of the character described, the combination. with a frame in-- cluding a vertical platehaving an opening therein through which the viewsare thrown on a screen, guideways for-the slides along the vertical edges of said opening, a recep- ,tacle for the slides having an inclined bottom and being provided with a means for automatically feeding the slides into said guideways, oscillatable holding means forthe slides above and below said opening, a reciprocatable feeding plate for forcing the slides in said guideways onto the lower holding means, and a mechanism for operating simultaneously said feeding plate and said holding means, substantiallyas specified.

4. In an apparatus of the character described, the combination with a frame including a vertical plate having an opening therein through .Whlch the views are thrown on a'screen, guideways for the sl des along the vertical edges of said opening, a recep-.

6 tacle for the slides provided with means-for means, and a mechanism for operautomatically feeding the slides into said guide'ways, holding means for the slides above and below said opening, a feeding plate for forcing the slides in said guideways onto the lower holding means, a shutter mechanism adapted to close the opening in said plate, and a mechanism for operating simultaneously said feeding plate, said holding means and said shutter mechanism, substantially as specified. s

5. In an apparatus of the class described, the combination with a frame including a vertical plate having an opening therein through which the views a1- thrown on a screen, guideways forth slides along the vertical edges of said opening, a receptacle for the slides provided with means for antomatically feeding the slides into said guideways, oscillatable holding means for the slides above and below said opening, a

reciprocatable feeding. plate for forcing the slides in said guideways onto the. lower holding means, a shutter mechanism adapted to close the opening in said plate, and a mechanism for operating simultaneously said feeding plate,'said holding means and said' shutter mechanism, substantially as specified.

6. In an apparatus of the character described, the combination with a frame including a vertical plate having an opening therein through which the views are thrown on ascree'n, guideways for theslides along the verticaledgesof said opening, a receptaclefor the shdes having an inclined bot- .tom and bein provided with means for automatically feeding the slides into said guideways, holding means for the slides above and below said opening, a feeding plate, for forcing the slides in said guideways onto the lower holdin means, a shutter mechanism adapted to c ose the opening in said plate, and a mechanism for operating simultaneously said feeding plate, said holding means and said shutter mechanism, substantially as specified.

7 In an apparatus ofthe class described,

the combination with a frame includinga vertical plate having an opening thereln through which the vlews are thrown on a screen, guideways for the slides along the vertical edges of said 0 ening, a receptacle for the slides having an inclined bottom and being provided with means for automatically feeding the slides into said guideways,foscillat able holding means for the slides aboveand below said openin a re- .ciprocatable feeding plate for forcing the slides in said guideways onto the lower holdin means, a shutter mechanism adapted to c ose the opening in said plate, and a mechanism for; operating simultaneously said feeding plate, said' holding means and said shutter "mechanism, substantially as 8. In an apparatus of the character described, the combination with a frame including a vertical plate having an opening therein through WhlCh the views are thrown on a screen, guideways for the slides along the vertical edges of said opening, a receptacle for the slides rovided with means for automatically feedlng theslides into said guideways, holding means for the slides ter mechanism comprising two frames hav ing apertures adapted to register ithsaid opening and colored glass plates adapted to close said opening, and a mechanism for 'operating simultaneously said feeding plate, said holding means and said shutter mechanism, substantially as specified.

Signed at South Bethlehem, in the county of Northampton and State of Pennsylvania, this 4th day of May A. D. 1911.

JOSEPH LEOPOLD. Witnesses:

SIMON Dnzso, D. B. ESCUTERIZ.