Abstract: A pair of generally parallel spaced plastic arms are pivoted to each other at their central portions by interleaved pairs of tabs having a pivot pin extending therethrough. A light coil spring on the pivot pin biases one pair of opposite ends of the arms into light engagement for clipping them on to an ear lobe. The one pair of opposite ends have a pair of hollow bosses formed thereon, with heart beat sensors positioned in each boss. Electric wires connected to the sensors extend therefrom along the arms through channels formed in the arms. The pivot pin has heads formed at its opposite ends. Apertures are formed in these heads and an elongated strip of plastic material has its opposite ends positioned in the apertures so that the remainder of the strip of material comprises an open loop for hanging the arms off the ear of the lobe to which the arms are clipped.

Abstract: An exterior lock groove is formed in the bowling pin base insert and the insert is locked in place by flow of the exterior plastic coat on the pin into the groove.

Abstract: A combination hip and leg sled exerciser having an adjustable toe rest when used as a leg exerciser, and an adjustable body board when used as a hip sled.

Abstract: A short tennis racket having an oblong, oval shaped head.

Abstract: Multi-chambered air inflatable aquatic exercise jackets for the arms and legs constructed from plastic sheet material.

Abstract: In a riding mower having a clutch controlled belt drive and foot brake, linkage between the brake and clutch having lost motion insures that the clutch is disengaged whenever the brake is applied.

Abstract: A diving mask comprising an eyeglass mounting frame; an outer frame made in two pieces which can be connected together by means of coupling members; and a rubber face piece provided with a front aperture, the peripheral rim of which overlaps the outer rim of the said eyeglass mounting frame, and is clamped between the outer rim of the said eyeglass mounting frame and the internal rim of the said outer frame; and fastening means on the outer frame and on the eyeglass mounting frame for fastening the said members together at least in correspondence of the mask median axis.

Abstract: The shift mechanism is incorporated into the handlebar stem which goes into the front fork stem.

Abstract: A hydraulic shock absorber has an adjustable connection to the exercise lever to provide variable resistive forces to exercise, and alternately the shock can be mounted to the exercise lever as a dead weight and a pulley-cord system added, so that a multiplicity of exercises can be performed with the same basic unit.

Abstract: The head of the tennis racket has an oblong, oval shape so that the strung ball hitting area has a length to width ratio of about 1.75:1.

Abstract: 4.times.8 Plywood sections are interconnected by a system of tabs and latches, and a spring suspension system is provided beneath the interconnected sections.

Abstract: The invention relates to a gymnastic balance beam of extruded aluminum with a bottom and end closures. The beam is of a general U-shape with the bottom plates secured to a flanged portion of the beam. The beam can be selectively covered with padding if desired.

Abstract: A dual-crank type upper body and arm exerciser attachment readily attachable to existing exerciser bicycles, and in which the drag brake for the arm exerciser comprises an incompressible sleeve of rubber or elastomeric material pressed against the crank arm shaft.

Abstract: A mechanical dead-man type control for the snow blower auger and wheels but without killing the engine.

Abstract: A long slotted sleeve holds the two U-shaped members together and serves dual function of a guide and stop. Tension springs extend between the two cross portions of the U-shaped members to provide resistance.

Abstract: The discharge chute deflector is operated in both directions by positive means comprising a pull cable for elevating it and a spring for lowering it, the spring being tensioned when the deflector is raised, by a rod connected to the deflector and spring.