US960519A - Projection-lantern. - Google Patents

Description

G. F. BUTTON, JR. PROJECTION LANTERN.

APPLICATION FILED JUNE 29, 1908.

960,5 1 9. Patented June 7, 1910.

2 SHEETS-SHEET l ATTEST Inwcrur 74W 1 BY ATTYS- c. P. DUTTON, R. PROJECTION LANTERN. APPLICATION FILED JUNE 29, 1908.

Patented June 7, 1910.

2 SHEETS-SHEET Z.

A'TTESI ligh 'wardly from the front wa amps or insuc UNITED STATES PATENT OFFICE.

CHARLES F. BUTTON, J'B., OF CLEVELAND, OHIO.

rnomc'rron-nan'rnnn.

Specification of Letters Patent.

Application filed June 29, 1908. Serial No. 440,8.

of the invention, whiehwill enable othersskilled in the art to which it appertains to make and use the same. 7

My invention relates to improvements in projection lanterns, and the improvement is comprised inan apparatus constructed and arranged to project an enlarged picture of an opaque object, such as a printed card, upon a screen; and further, to project a series of picturesin such a manner that a moving or motion effect is produced, all substantially as shown and described and particularly pointed out in the claim.

In the accompanyin drawings, Figure 1 is a perspective view 0 the device complete. Fig. 2 is a detail view of one form of intermittent-drive gear adapted to be used in my device. Fig. 3 is a plan view in section throu h the body of the lantern, and Fig. 4 is a ont elevation thereof. Fig. 5 is a sectional view on a' central vertical line of the rear portion of the device and showing more particularly the slide and mounting for the drive parts. Fig. 6 is a plan view of the lantern with the display disk in section to show its manner of attachment to the operating mechanism.

The body -2- of the lantern is angular in formation and especially in that the front wall -3 is inclined rearwardly at each side to bring the porcelain lamp sockets '-4' and electric lamps 5 mounted thereon at the proper angle to direct the rays of t upon the. card -6- or other object at the rear. an integral or fixed tube --7 located between the lamps 5 and projecting rear- 1 to a point approximately op osite the middle of the relation thereto that the light from the lamps is more or less screened from the side at the inner mouth of the tube except as it is reflected in direct lines from the card or picture 6.

Fixed tube 7 supports a set of two or more extension tubes -8- and -9- sleeved one within the other, one of which carries a lens 10 for projecting and enlarging the picture.

said plate is rotatably supported an The body is further provided with The telescopic arrangement of the said-tubes Patented June '7, 1910.

provides for the adjustment necessary in v focusing the object on the screen, and because supporting tube 7 is largely within body 2, the said extension tubes may also be retired within the body for compact-- ness and convenience in packing and shipping.

The rear wall 11 is in reality a removable slide which is confined at its sides and bottom by a flange -12 on body 2 and is free to be lifted and removed from the top, and said slide has an opening 1=1 opposite the inner end of the lens tubes and through which the picture or object is displayed. This picture or object may be either stationary or movable .and may consist of a single card with a single picture thereon, or a tape or cord with a series of pictures thereon. My apparatus is provided with a dual arrangement for displaying either single picture orsets of pictures, and in both instances the meansfor supporting ,and displaying the pictures, is mounted upon slide wall 11 and becomes a removable part therewith. Thus, at the left of said wall 11, I pivotally attach a bail or set of links 15 which pivotally support a fiat display board or plate --1 6 edgewise between their free ends, and upon which a picture card, such as picture postals or hotos 6 may be removably placed by ru ber .bands 17 or clips or the like. Picture cards may be placed on both sides of the plate as either side may be swung opposite and in close relation to opening 14.

The foregoing arrangement provides for single pictures, but a series of pictures may be also displayed in such rapid succession that a moving picture is the result, and to this latter end I provide a disk -18-- hav-v ing a series. of pictures 19 cencentrically arranged on one or both of its faces and mount the same at the rear of the body u on suitable frame-work 20 which is part 0 or attached to slide wall -11. When the pictures on the disk 18- are'to be displayed, the

swinging frame embodying plate -16- and 106 links 15 is moved to one side as seen in Fig. 1. Disk 18- is then slipped over the screw end of short shaft 21 which has bearing support midway of framework 20-, and the said disk brought face to face with the hub of gear or notched wheel -2% and is locked against independent rotation thereon b pins 23 which ass through correspon ingly located openings in the disk, and

thumbnut -24 then fastens the disk in place. The disk now occupies such relation to the body and its lens tubes that the circuit of pictures on its face are brought into axial alinement with opening 14-- and the lens when rotation is imparted to the disk. But a continuous rotation of the disk would only present a blurred effect on the screen, and therefore, it is essential that an intermittent rotation be had which will present each picture in the series in turn and hold it without movement for. a predetermined length 'of time so that a distinct and clean cut reflection and re roduction thereof will appear. To that en I provide a notched wheel 22 which is ada ted to be engaged at its edge in the notches by a pin-wheel 25 once during each revolution thereof, and which advances wheel 22 and the disk the requisite distance between pictures to display each. in turn.

,During the interval when pin-wheel 25 is rotating to again operate wheel 22, a spring detent or check member 26 holds said wheel 22 stationary. This member is adjustably supported upon frame-work 20 to increase or decrease its frictional contact. However, in Fig. 2, I disclose a modified form of gearing in which the spring member is eliminated, the notched wheel 22 in this instance having an edge to edge relation to the single tooth pinion 27 and whereby its periphery is adapted to ride against and within the circular cut-out ortions 28 of the gear or wheel 22 to loc k the latter against rotation when the sin le tooth of pinion 27 leaves the notch and during the interval before it rides into the next notch. For high speeds, the latter construction is preferred, being more positive in its locking action.

-Wheel 25 or pinion 2 may be crank driven direct, but for greater s eed and smoother running a belt 29 is use to drive the same from and by a larger wheel or pulley 30 having a crank shaft and handle 31 mounted in a' bearing at the end of extension 32 of framework 20 at the side of body 2 where it may be conveniently operate Rear slide. wall 11 is made removable to give access to the interior of body 2 and so that electric lamps 5 may be removed and replacedand their electric connections ---33 inspected and repairs made if needed. The lamps used are of high power and preferably have a relatively larger diameter than length. I also prefer to use a lamp with a frosted front half 34 and a reflector back 35. Having two lamps disposed relatively at the angles shown, the rays of light are concentrated througlr opening 14 upon the picture and are equally diffused over its entire opaque surface and projected through thetube and lens to the screen. If gas or oil lamps were used, the same relative arrrangement of the lamps to the tube and to the picture would be retained, and the invention in its broadest aspect is to be construed to cover the use of any type or form of lamp if constructed and arranged substantially as herein shown and described.

What I claim is In projection lanterns, a body having a lens tube and lamp and a removable rear wall having an opening opposite said lens tube, in combination with alternative picture display means jointly mounted upon said rear wall and removable therewith and comprising a swinging picture support. at one point and a rotatable picture support at another. I

In testimony whereof I sign this specification in the presence of two witnesses.

CHARLES F. DUTTON, JR.

Witnesses:

E. M. FISHER, F. C. Mussoiq.

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