US282939A

US282939A - Paeis h

Info

Publication number: US282939A
Authority: US
Publication date: 1883-08-07
Anticipated expiration: 1900-08-07

Description

(No Model.)

P. H. WHEELER. MACHINE FOR PAGKING DRY PLA'TE'S FOR PHOTOGRAPHERS.

No. 282,939. Patented Aug-7, 1883.

WITNESSES G 6+ {MW QM 04 .9%}

i A i|0r ney PEYERS. Pmmumi w, Washington. I16.

' .UNITED STATES PATENT OFFICE. I

IARIS H. WVHEELER, OF WASHING'ION, DISTRICT OF QOLUlWIBIA.

MACHINE FOR PACKING DRY-PLATES Fo PHOTOGRAPHERS.

SPECIFICATION forming part of Letters Patent No. 282,939, dated August 7,1883.

Application filed July 2,1883. (Nomodelo To all whom it may concern/.-

Be it known that I, PARIS H. WVHEELEE, a citizen of the United States, residing at -Washington, in the District of Columbia, ha've ranged for use as required.

invented certain new and useful Improvements in Dry-Plate-Packing Devices, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has for its robject to provide certain means for packing sensitized photographic dry-plates in such manner that .the sensitized surfaces of the same will not be impaired or injured, and at the same time they may be compactly and conveniently ar- The above mentioned obj ect I attain by the means illustrated in the accompanying drawings, in whichv Figure 1 represents a perspective view, showing the device by means of whichI accomplish this object; and Fig. 2, a longitudinal sectional viewthereof:

The letter A indicates a base-board, which has secured to it, near its opposite edges, the parallel guides B, as indicated. Over these guides is arranged to slide a transverse strip,

O, of wood, metal, or other suitable material,"

the said strip being provided with confiningblocks at each end,which embrace the guides,

as shown. Thesaid strip is intended to carry a set of cords, E, of twine or other similar material,which pass from the balls F through the eyes or loops G and through apertures H,

their ends being secured to the upper part of the base-board; V

The letter I indicates the box, into which the plates are to be packed, which is of a size to carrysaid plates conveniently. This box sets upon the base-board between the guides, its lower end resting upon an adjustable slideclamp, L, as indicated.

The sliding bar is provided with means for adjusting the position of the cords to adapt the apparatus to. different-sized plates.

In the present instance, this is accomplished by means of a series of oblique slots, D, having eyes H at their terminations, through which the cord at one side may be passed. The platebox is set upon, the baseboard between the guides, being held securely by means of the adjustable clamp L. p

The plates, after. being properly sensitized, are placed in the plate-box as follows: The

movable bar is shifted first to the lower edge of the base-board, leaving two .parallel lines of cords stretched over-the bottom of the same. A plate is then laid on these cords, and the movable bar is returned to the upper edge of the base-board, carrying the cords over the plate near the'edges of the same. Another plate is then placed upon the cord so arranged,

and the movable bar is again carried to the lower edge of the base-board, arranging the i cords for the next successive plate, and this operation is continued until the box is properly filled, afterwhich it maybe covered and removed. It is to 'be understood that these operations are to be conducted in a dark room, or in the absence of actinic light, and the boxes are to be closed against such light before being put up for use. r

p In the present instance, as before mentioned,

I have shown the sliding bar provided with oblique grooves and eyes for the purpose of adjusting the cord; but it is evident that other means'of adjustment may be employed-such, for instance, as a sliding guide secured to the movable. strip-without departing from the spirit of my invention; and hence I do not intend to limit myself to the details shown.

Having thus described my invention,what I claim, and desire to secure byLetters Patent,

1. The method of preparing photographic dry-plates, the same consisting in interposing between the same a series of cords, strings, or other pliable material in a continuous length, whereby the plates are kept separate, so as to prevent injury to the sensitized surfaces, subdry-plates, of a base-board having guides at each side, with a continuous strip of flexible material interposed between said plates by means of a carrier, as set forth. I

3. In a machine for packing dry-plates, the combination, with the movable bar 0, of'thc laterally-adjustable carriers adapted to arrange the packing for different-sized plates, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

j r. H. WHEELER. WVitnesses E. H. BRADFORD, J H. J. ENNIS.