Catalog of stereopticons, motion picture machines, projection apparatus : manufactured and imported by the McIntosh Stereopticon Company . ooperate. 2nd. The generation and pressure of the gas is at all times under the control ofthe operator. Generation can be increased, diminished or stopped at will by merelyturning the knob (A) at the top of the long screw to the right or left, the operationeither lowering or raising the entire gas container (C) and the enclosed Carbide basket(D) in the water. 3rd. Ordinary lump Carbide is used, which is easily obtained, instead of Carbideof special crush or
Catalog of stereopticons, motion picture machines, projection apparatus : manufactured and imported by the McIntosh Stereopticon Company . ooperate. 2nd. The generation and pressure of the gas is at all times under the control ofthe operator. Generation can be increased, diminished or stopped at will by merelyturning the knob (A) at the top of the long screw to the right or left, the operationeither lowering or raising the entire gas container (C) and the enclosed Carbide basket(D) in the water. 3rd. Ordinary lump Carbide is used, which is easily obtained, instead of Carbideof special crush or size being required, as in some generators. 4th. Amnle surface is provided for the condensation of moisttire and cooling ofthe gas in the spiral tube (E) and the condensing chara jer (F) at the bottom of thewater tank (B). (The delivery to the burners of cool dry gas insures the obtaining of a pure whiteUght). 5th. The basket (D) has a capacity for two pounds of Carbide, or suflBcient for atwo hours run. Directions for operation accompany each generator. Mcintosh stereopticon co., Chicago, ill., u. s. a. QUADRUPLE ACETYLENE PRICE, with plate base or post support to fit our lanterns as desired, $ single Crescent burners with conical base, like those form-ing the large one, each 50 The Quadruple Acetylene Jet is made up of four burners, eachconsuming three-fourths of a foot of gas. Each burner has twotips, so placed that when used the two jets of gas issuing there-from impinge on each other at an angle, producing a small, flatflame of intense brilliancy, which appears to float above theburner, thereby preventing almost entirely the deposit of soot atthe tip which was formerly a great drawback to the use of acety-lene. The four burners are placed close together and set so as topresent their flames diagonally to the surface of the lens, for thepurpose of condensing the light into as small an area as possible,which is very necessary in a good lantern illuminant. The re
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