1851 Great Exhibition: Official Catalogue: Class X.: Evorry Kennedy
725. KENNEDY, EVORRY, M.D., Dublin — Inventor.
Syphon, adapted to green-house or garden watering. The principle is the substitution of an elastic caoutchouc chamber, for the suction pump to procure exhaustion, the water being directed in its course by double ball and socket valves. The pressure of the hand or carriage handle expels the water, and its own elasticity procures the exhaustion. The syphon has a sustained or continuous action, by means of an external exhausted air chamber.
Syphon adapted to medical purposes, as a substitute for the pumps at present in use for throwing fluids into internal cavities. The exhaustion is produced by the elasticity of the India-rubber bag itself, the fluid being propelled by the pressure of one hand leaving the other free to guide the instrument; the material is not acted upon by the usual chemical agents.