US1262578A

US1262578A - Picture-exhibiting apparatus.

Info

Publication number: US1262578A
Application number: US1091015A
Authority: US
Inventors: James A Cameron
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-27
Filing date: 1915-02-27
Publication date: 1918-04-09
Anticipated expiration: 1935-04-09

Description

l. A. CAMERON.

PICTURE EXHIBITING APPARATUS.-

APPLICATION FILED rmzz. lass.

Patented Apr. 9, 1918.

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.I. A..CAMERON.

PICTURE EXHlBlTlNG APPARATUS.

APPLICATION FILED n25.21. x915.

Patented Apr. 9, 1918.

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JAIES A. CAMERON, OI BROOKLYN, NEW YQBK.

PICTURE-WRITING APPARATUS.

Specification or Letters ratent.

Application fled February 27, 1815. Serial No. 10,910.

-. to picture exhibiting devices and has more particularly reference to what is commonly called astereopticon.

In theprior art of stereopticons it has been customary to exhibit the successive views by means of slides inserted in the machine one after the other, and so far as applicant is aware no attegpt has ever corresponding parts in image been made to exhibit at irre ar'intervals at the will of the operator successively'a series of still-life stereopticon views by means of a continuous carrier having a series of varying and arbitrary images. The object of this invention is to overcome the slow and cumbersome method previously existing v in exhibiting stereopticon views by means of slides, and to this end the invention consists in a continuous carrier having a series of varying and arbitrary images, together with means for exhibiting said images successively as a series of stilllife stereo ticon views at irregular intervals at the wil of the operator. Other features of construction, combination of parts and arrangements of elements will appear as the speclfication proceeds.

In the accompanying tion is disclosed in a concrete and preferred form but changes may of course be made from the construction shown without departing from the legitimate scope of the invention as expressed in the appended claims.

In the said drawings: Figure 1 is a vertical sectional view through a machine or device embodying the invention.

Fig. 2 is a horizontal transverse sectional view substantially on the line 2-2 of Fig. 1. Fig. 3 is a vertical sectional view on the line 3-3 of Fig. 1.

Figs. 4 and 5 are detail views'of the carrier. Similar characters of reference indicate the difierent views. carrier which may 1 indicates an image drawings the inven-' be of any suitable character and the ima of which may be arranged in any suita le way but preferably, as shown in Fig. 3, .the images are'arranged in two parallel longitudinal series on a regulation film provided .with sprocket holes 2-inthe usual manner. In this instance, however, there will be four images to each four sprocket holes instead of one picture as it 1s now to have. In this way generally the custom a greater number of views may be placed on the ima e carrier so that with a very um bei-Tof small roll 0 film a considerabl pictures can be obtaind.

The images on this carrier, which in the present instance is of a tape-like formation and of a translucent character, may be illuminated by means of reflected or transrnitted light but in the present instance a transmitted light is utilized.

As shown, the the sprocket wheel 3, thence past the exposure opening between the face plate-5 and the tension means 6, after which it passes over the .second sprocket 7 and thence over guide roller 8 and out of the machine. The sprocket 7 is provided with a knurled handle 9 which is turned by the operator the requisite distance to exhibit each picture successively. In order to properly register each picture as it is exposed to the exposure opening 4 the sprocket 7 is provided with a member 10 having notches 11 in its surface, the distance between successive notches being equal to the distance required to bring a new picture in front of the exposure opening. In conjunction with this a latch 12 is provided which rides on the periphery of the member 10 and which is spring-pres and upon the rotation of the sprocket is lifted out of engagement with its notch and automatically seats itself again in the next notch when the image carrier has been advanced the pro erdistance. It will be understood that t e operator can turn the handle 9 to suit his own convenience and to successively bring a icture in front of the exposure opening an that such picture can remain there any length of time desired by theoperator, so that the eifect produced is one of-a still-life picture or stereopticon view.

I The images carried b the carrier, are varying and arbitrary, t at is to say, series of these pictures should be exhibited in rapid succession. no motion picture efiect lfa Patented Apr. 9, 1918.

image carrier is passed over would be produced since each picture would necessarily be distinct and different from the next picture. This of course does not mean that the pictures are entirely unrelated, although theymay be so.

13 indicates a stereopticon lens and 14 indicates an electric lamp for illuminating the picture. In order to conceal the image carrier during the period of transition from one picture to the next, or to produce a period of obscuration, a mechanically operated shutter may be utilized. In the present instance, however, the circuit 15 and source of current 16 of the electric light is connected to the latch 12 and to the rotatable member 10, the connection to the latter being by means of the brush 17 The rotatable member 10 is provided with alternate insulated and uninsulated portions 18 and 1950 arranged that upon the rotation of the rotatable member the latch 12 which forms one terminal of the circuit engages the insulated portion 18, thereby breaking the circuitthrough the lamp, and when it drops into the next notch 11 it again makes contact and reestablishes the circuit so that the lamp is lighted again. If the images should be out of register with the exposure open- 111g 4 they maybe framed by loosening the nut 20 and by turning the rotatable member 10 slightly the picture can be brought into register without displacing the relative circumferential relation between the said rotatable member and the latch. This movement is permitted by means of the slot 21 on the said latch, After register is obtained the screw 20 is again tightened and the device may be operated as before.

In the present construction the sprocket 3v also carries a rotatable member 10 of the same construction as the one just described and in connection with which there is also provided a latch 12 which performs the same function as the latch 12 previously described. The member 10 and the latch 12 adjacent to the sprocket 3 are likewise included in the electric circuit 15 controlling the lamp, as shown. When an image carrier has been passed through the machine in one direction by the rotation of the sprocket 7 it may be run back again in the opposite direction through the machine by rotating the sprocket 3. In order to carry this out properly the

cams

22 and 23 are provided by means of which the

members

10 and 12 may be disengaged. In Fig: 1, where the sprocket 7 is intended to be operated, the cam 23 has been moved into position to raise the latch 12 out of engagement with the member, but if it is desired to run the film in the opposite direction this cam 23 will be lowered and the cam 22 will be elevated. The means for passing the image carrier through the machine in opposite directions permits the use of an image carrier having image carrier is moved in one direction and the other series is shown when the image carrier is moved in the opposite direction.

To this end the exposure opening 4 is made of the size indicated in Fig. 3 so that only one half of the film is being exposed. When it is desired to expose the other half of the film the bracket '24 which is mounted slidingly on the framework 25 by means of the slots 26 and screws 27 is moved sidewise or transversely of the machine. Attached to this bracket 24 is the slide 28 which by its lateral motion brings the exposure opening 4 in front of the other series of ima es and covers the first series of images. e lens 13 and the lamp 14 are likewise secured to this bracket 24 so that simultaneously with the movement of the slide 28 these instrumentalities are likewise shifted so as to bring them into focus with the section of the 1m to be exposed. Of course if it is desired to have larger pictures the image carrier indicated in Fig. 4 may be used, 1n which it will be seen the two parallel series of images are still retained but are of twice the length of those shown in Fi 3, or if it is desired merely to run the through the machine in one direction a full size picture such as shown in Fig. 5 may be utilized.

What is claimed, is:

1. A stereopticon comprising a continuous carrier having a series of varying and arbitrary images, means including a sprocket engaging the sprocket holes in the carrier for exhibiting said. images successively as a series of still-life stereopticon views at irregular intervals at the will of the operator, means for locking the carrier to hold the images in exhibiting position, and means for preventing the operation of the locking means.

2. A stereo ticon comprising a tape-like carrier provi ed with sprocket holes and having a series of varying and arbitrary images, means including a sprocket engaging the sprocket holes in the carrier for exhibiting said images successively as a series of still-life stereopticon views at irregular intervals at the will of the operator, means for locking the sprocket to hold the images in exhibitlng position, and means for preventing the operation of the locking means while a plurality of images are moved throu h exhibiting position.

3. i stereopticon comprising a continuous carrier having a series of varying and arbitrary images, llluminatin means, means for feedin said carrier 'ste y step a predetermine distance for eac step with relatively great intervalsof rest between feeding movements to thereby exhibit said images successively as a series of still-life stereopticon views at irregular intervals at the will of the operator, means for locking the carrier to hold the images in exhibiting position, means for moving and holding the locking means out of lockmg position, and means for rendering1 the illuminating means inoperative when t e locking means is out of locking position.

4:. A stereo ticon comprising a tape-like carrier provi ed with sprocket holes and having a series of varymg and arbitrary images, illuminating means, means including a sprocket engaging the sprocket holes in the carrier for feeding said carrier step by step a predetermined distance for each step with relatively great intervals of rest between feeding movements to thereby exhibit said images successively as a series of still-life stereopticon views at irregular intervals at the will of the operator, means for locking the sprocket to hold the images in exhibiting position, manually operable means for moving and holding the locking means out of locking position, and automatically operable means for rendering the illuminating means inoperative when the locking means is out of locking position.

5. 'In a picture exhibiting device, a means for advancing the image carrier ste by step past an exposure opening, a rotata le member having notches in its periphery moving with said means, a latch for engagement with the notches of said rotatable member to indicate when the image carrier has been advanced a means for ad uSting the latchwith respect to the rotatable member so as to permit the latter to shift the image carrier with respect to the exposure opening without disturbing the relation between the notches of the said rotatable member and the said latch.

Signed at New York city in the county of New York and State of lIew York, this th day of February, A. D. 1915 JAMES A. CAMERON.

Witnesses: Axnn V. Bnnxmv, Tnnnsa V. LYNCH.

predetermined distance, and

It is hereby certified that in Letters Patent No. 1,262,578, granted April 9, 1918, upon the application of James A. Cameron,of Brooklyn, New York, for an Improvement in Picture-Exhibiting Apparatus, an error appears in the printed specification requiring correction as follows: Page 2, lines -101, claim 1, strike out the words including a sprocket engaging the sprocket holes in the carrier and that the said Letters Patent should be read with this correction therein that the same I mayconform to the record of the case in the Patent Ofiice.-

Signed andsealed this 9th day of July, A. 1)., 1918;

[sun] I I W. H. CLAY,

1 Acting Gomm'issioaer of Pate'rits. Cl. 88-28.

Correction in Letters Patent No. 1,262,578