US56799A - Improved ventilator and shade for lamps - Google Patents

Description

C; RECHT Ventilator and Shade for Lamps.

N0- 56,799. Patented July 31, 1866.

I miwass' 5 I fi- W I 6 UNITED STATES PATENT OFFICE.

CARL REGHT, OF NEW YORK, N. Y.

IMPROVED VENTILATOR AND SHADE FOR LAMPS..

Specification forming part of Letters Patent No. 56,?99, dated July 31, 1866..

section, showing valve; Fig. III, a perspective view of the valve.

a is a horizontal tube attached at a right angle to and opening into the tube a,- b 1), thin circular plates, of diameter larger than that of. the tube a, working in the tubes 9 g and opening and closing either end of tube a; o, shaft connecting plates b b as an axis, running longitudinally through or near the center of tube a and at right angles with the plates b b; d, rod attached at right angle to and supporting the shaft 0, and extending vertically, or nearly so, through the tube 2' to the shaft 6, to which it is attached and about which it works; 6,

horizontal shaft running through the diameter and passing through the sides of the tube 2' at right angle with the line of the shaft 0; f, shade attached to the lower portion of tube 6 g g, cylindrical tubes lying in the same direction and being continuations of tube a, to which they are fastened, and sufficiently large to allow of the working of the valve-plates b 1), ends open 5 h, prolongation of tube g, open at both ends; t, vertical cylindrical tube, opening at lower extremity directly over the lamp or flame, and at the other into the tube a; 70, small weight attached to the plate I).

Operation: The improved valve-ventilator and lamp-shade combined is adjusted for operation in such a manner that the tube 13 rises vertically directly over the flame, while the tube It passes through an aperture in the wall or window into the air without. When, by the heat or otherwise, an upward current of air is created through the tube a, and even when there is no current in either direction, (since the rod (1 stands not vertically, but leaning toward the tube 9, and the weight of the shaft 0 and plates 1) b is rendered equal on each side of the rod d by the addition of the weight 76 to the shorter side of its own weight,) the valve falls into such a position that the plate b closes the end of the tube a which opens into 9, while the plate 1) falls away from the end of the tube at opening into 9, thus making an outlet for smoke and gases into the outer air, while the plate I) prevents their escape into the room. If, by any chance, the current is changed in direction for a moment, and a draft sets in from Without, the plate b is forced back against the opening of tube a into g, closing the passage, and thereby preventing the draft from affecting the flame or causing it to flicker. The inward current ceasing, the

valve assumes its former position, and the gases pass out as before. The shade f performs thedouble oflice of a screen for the eyes, and a means of collecting and directing, through the tubes 1' a h, all the noxious gases evolved by the combustion beneath.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The valve as arranged and described, substantially.

2. The combination of the valve and shade with the ventilating-tube, as constructed.

CARL REOHT.

Witnesses CHAS. MORRILL, E. H. WILLIAMS.

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