5th, The combination of the crank, w, arm, x a', spring, b, and sliding
bar, s, arranged and operating as set forth.
6th, The combination of the lever, a", shaft, v, pinion, e', and spring,
e"', when used independently, or in connection with the frame, B,
substantially as and for the purpose described.
71,933.--BED BOTTOM.--David S. Williams, Coldwater, Mich.
I claim the combination of the loop, A, rods, B, spring band, C,
rods, D, webbing, E, slats, F, wires or equivalent, G, in the manner
described.
71,934.--INSTRUMENT FOR ADMINISTRATION OF ANAESTHETICS.--Osborn Wilson,
Aurora, Ill.
I claim, 1st, The construction of an instrument with inhaling and
exhaling tubes, provided with valves, working automatically and
alternately in opening and closing the tubes by the respiration of the
patient, substantially in the manner and for the purposes as herein
specified.
2d, Providing the instrument with a spring valve and air tube for
regulating the administration of nitrous oxide and other anaesthetics,
substantially in the manner and for the purposes as herein specified.
3d, The construction and arrangement of stock, A, mouth piece, B,
inhaling and exhaling tubes, C' C, plate, D, air tube, E', valve, E,
spiral spring, b, valves, c c, rods, d d, fulcra, e e, arm, f, and rod,
g, substantially in the manner and for the purposes as herein specified.
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