Abstract: A liquid level control device for controlling the flow of liquid into a reservoir, storage tank or the like, incorporating automatic shut-off characteristics. The device includes nozzle means including a fluid amplifier for automatically closing valve means in response to sensing means disposed remote from the nozzle means and fluid amplifier. The remote sensing means is responsive to the static presence of the interface at a sensing level of liquid in the reservoir.

Abstract: A set of iron-type golf clubs is designed to have gear effect so that a golf ball which is hit off-center on the club is provided with a corrective spin which will tend to bring the ball back to the intended line of flight.Each clubhead is provided with a cavity in its rear face, and the dimensions of the cavity and the dimensions of the clubhead are selected so that the center of gravity of each clubhead of the set is spaced progressively farther behind the striking face of the clubhead as the loft angle of the clubhead decreases, the moment of inertia of each clubhead progressively decreases as the loft angle of the clubhead decreases, and the radius of gyration of all of the clubheads is relatively constant. In one specific embodiment the center of gravity for clubs 2 through 9 varied from 0.171 to 0.114 inch behind the striking face, the moment of inertia varied from 13.619 to 16.423 ounce (wt.)-in..sup.2, and the radius of gyration varied between 1.271 and 1.291 inch.

Abstract: A golf club of the iron type has a metal head with a front striking face and a slot spaced rearwardly from the striking face to provide a flexible and resilient striking plate.

Abstract: A golf club of the wood type in which the ball striking surface of the head is recessed to receive a metal insert which is secured therein, the insert having a front grooved surface which is flush with and forms a part of the striking surface of the club, the insert having an open-ended passageway extending therethrough from top to bottom so that the front grooved surface is capable of elastic flexing relative to the remainder of the insert.