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October 30, 1885.] THE PHOTOGRAPHIC NEWS. 699 supporting the camera tody on this side is attached to this side plate and moves with it ; thus, the camera body being pivotted between these two side plates—one of which remains stationary, and the other is moveable in a horizontal direction—the camera body can, by these means, be placed out of a parallel position, one side being either nearer to, or further from, the front board and lens as may be desired. If preferred, in lieu of one of the side plates being fixed by wood screws to the base board, both side plates may be formed with slotted holes working in adjustable screws. The claim is : In a photographic camera, the use of side plates suitably attached to the base board, and between which the camera body is pivoted, one or both of such side plates being arranged to move forward or backward for the purpose of placing one side of the camera body nearer to, or further from, the front board. Patents Granted in America. 327,980. David 0. Adams. “ Camera Shutter.” Columbus, Ind. —Filed January 5th, 1885. (No model). Claim.—1. In a camera-shutter, the flat case having a central opening, the curved slides pivoted to said case on opposite sides of and arranged to cover said opening, and the curved bar pivoted to said slides. 2. In a camera-shutter, the combination, with the case, the curved slides pivoted thereto, and the bar pivoted to said slides, and having the arm of the pneumatic cylinder, the piston and piston-rod moving in said cylinder and connected with said bar. 328,033. David S. Hitchcock, Cleveland, Ohio. “ Camera- Shutter." Assignor to the Hitchcock Shutter Manufacturing Company, same place.—Filed September 11th, 1884. (No model). Claim.—1. In a camera or other optical instrument, the com bination of the shutter-valves a a', the movable plate I, the lever t, the slots k k' and h h', and the case g, with its cover, or their equivalents. 2. The shutter-valves a a', plate I, lever i, slots 4 k and h h', and case g with its cover, and the attachment-band p p', the cap c, the arm r, the bar s, the spring z, the spring o, the screw v, the nuts t f, or their equivalent, all combined with the tube of a camera or other optical instrument. 3. The movable circular plate I, of any size required, made of thin metal, or other suitable metal, having a central opening of any required size, a lever or other device to move the plate, and slots h % k k'. 4. The diaphragm-plates E E' F F with collars, the pinions GGGG, the plate D with ratchet-teeth I I' H H', the lever A, the case C, and its cover. 5. The diaphragm-plates E E' F F', of any required size, made of thin metal or other suitable material, having a raised collar and pinion on the under or upper face of each, as may be required, to allow said plates to pass each other when revolved. 6. Two or more diaphragm-plates, each having a raised collar and pinion, combined with a movable circular ratchet-plate of suitable size and material, with circular opening, ratchet-teeth, and lever. 7. The combination of one or more diaphragm-plates with pinions and a movable ratchet-plate. 8. In a camera or other optical instrument, the shutter-valves, the movable plate with its lever and slots, combined with the diaphragm-plates, the pinions, the movable ratchet-plate, the lever, and case. 328,431. Thomas C. Roche, Brooklyn, assignor to E. and H. T. Anthony and Co., New York. “ Photographic sensitive paper.” —Filed December 24th, 1884. (No model). Claim.—1. As an improved article of manufacture, a prepared sensitive photographic paper or other flexible support, made as herein described, with two separate sensitive faces of gelatine- silver-emulsion. 2. In photographic papers, the combination, with the body of the paper of the two separate films of gelatine-silver emulsion. 3. A photographic sensitive paper constructed with the body of the paper, inclosed between two sensitive films of gelatine- silver emulsion. 4. In a photographic paper, two separate sensitive films of gelatine-silver emulsion, supported and carried upon a single sheet of paper. PHOTOGRAPHY IN A HOUSE-BOAT. ( Being the Record of a Day’s Experience.) They were a party of amateur photographers on board a house-boat up the river. “ Come down,” said Jones, the instigator of the party, “and see us at work. It may amuse you.” I went, and it did amuse me. The party was four in number. Of these, Jones only knew anything of photography practically—he had, it seems, had half a dozen lessons, and he gave himself airs on this account. The others were assiduous students of all the manuals published, but had not derived so much benefit as might have been expected, since they did not agree on a single point. They also differed from Jones, the practical. This made things lively, but I fancy rather impeded their advancement. In the first place, they quarrelled over the dark-room. Brown was bitten with the idea of green glass ; Jones would hear of nothing but cherry fabric; Smith was wedded to canary medium ; while Bagshaw hotly declared in favour of the old-fashioned ruby glass. They compro mised the matter by using all four. The dark-room was consequently as dark “ as they make ’em,” but then it was so safe. They had the same difficulty about the developer. When the question was first mooted, Jones attempted to settle it by exclaiming, in an off-hand manner, “Why pyro and ammonia, of course. I’ve never used anything else.” “ Then how can you give an opinion on the others ? ” retorted Smith. “ All the manuals recommend the feirous oxalate. It keeps no end of a time, and there’s no bother with it.” Brown’s weakness was a craze for new discoveries, and he suggested “ hydroxylamine.” “ I don’t believe in new-fangled notions. I never heard that a developer could be made out of any of the aniline colours,” said Bagshaw. “ I didn’t say hydroxaniline. It’s a pity, Bagshaw, you don’t keep yourself posted up in the latest improvements. You wouldn’t then be so lamentably ignorant. You’ve heard of the hydroxylamine developer, of course, Jones.” “ Oh, of course ; I’ve tried the hydra-thingamy, but I don’t care much for it,” said Jones, hastily. J ones’ manner was painfully suggestive of the suspicion that he knew nothing of the new developer, but the others could scarcely tell him so. “ Anyhow, I shall go in for that which gives the least trouble. Shall buy the developer ready mixed,” said Bag shaw. Bagshaw’s method was denounced as “ awfully unscien tific,” and Jones and Brown deluged him with formula, but all to no purpose. Finally, it was decided that each man use his own developer, and they consequently had bottles labelled with their respective names. But the worst discussion was over the dry plates, and as it was found impossible to determine whose make was the best, they put the names of the manufacturers into a hat and fixed upon the first one taken out. Their “ kits,” or “ apparati ” as Brown, with absurd pretence, would persist in calling the cameras and appurte nances, were various and peculiar. Jones, as became a man who had had lessons, had gone in for a brand new camera of diminutive size and of extraordinary cheapness. Brown had also a new one, but with several additional im provements of his own invention; Smith had borrowed one from a friend, and Bagshaw had a large “ universal ” capable of taking pictures from 15 by 12 to quarter plates, which he had picked up somewhere at a sale.
