An exerciser includes a handle and a support rotatably secured to a base, two foot pedals are rotatably secured to the support with spindles for allowing the users' feet to be rotated relative to the support and for preventing the users from being hurt or twisted while rotating relative to said base with the support. The support includes two blocks pivotally secured between two pivotal and parallel beams for supporting the foot pedals. A device may couple the the handle to the support for allowi...

A steerable swing device is disclosed which comprise support cables (3, 4) strung across a gully and crossed to form a junction (9). The support cables are anchored at the sides of the gully by anchor points (5, 6, 7, 8). A swing cable (2) is suspended below junction (9) and a craft (1) is suitably attached to the swing cable. A motor-driven winch drum (13) is positioned at the top of the gully and functions to winch the craft to a desirable height before releasing the craft to commence the swin...

A monitoring device for narrow stile, metal frame doors having a mounting plate securable to the door jamb adjacent the strike slot. A switch is mounted on a bracket extending from the face plate and the switch is connectable to an existing alarm system. A trigger normally engages the switch actuator pin. When the closure or door is closed and the dead bolt engaged in the strike slot, the trigger will disengage the pin allowing the alarm system to be armed.

A clamping apparatus has a body and an elongated member that is extendable from the body. In another aspect of the present invention, a clamp has a workpiece engaging arm mounted adjacent an end of the elongated member. A further aspect of the present invention causes the elongated member to linearly extend and rotate when advanced.

A centrifuge tube holder designed for use in a centrifuge rotor to hold a plurality of small volume tubes in such a manner that, when the centrifuge rotor is at rest, the tubes will be oriented at an inclined angle, but will assume essentially a horizontal orientation when the centrifuge rotor is operating. The holder provides improved collar support for the centrifuge tube during centrifugation and also provides for the inclusion of a tube pivot point in the plate to enhance the proper movement...

A swinging door construction for a vehicle comprising a door panel having upper and lower swing arms coupled thereto and connected to a rotatable swing column. A drive mechanism is secured to the body of the vehicle and operatively engages the swing column to rotate the same and effect swinging of the door. The lower swing arm is connected to the swing column by a connecting member which extends upwardly above the drive mechanism and is secured to the swing column.

A swinging chaise lounge having a chaise portion pivotally mounted on a stand whose frame consists of tubular members cemented together the chaise portion pivoted to an oblique angle with the vertical when in a non-use position with the lower end of the chaise portion engaging the stand whereby the intended user of the swinging chaise lounge may readily and easily place himself on the chaise lounge without endangering himself.

A rotor having a plurality of swinging carriers designed to receive specimen samples for subjection to centrifugation. The carriers are pivotally mounted to a rotor frame in such a manner that the generally flat support faces of each of the carriers assumes a parallel orientation with respect to the rotational axis of the rotor during operational speeds of the rotor. When the rotor is not operating, the support surfaces of each of the carriers assumes the perpendicular or acute angle orientation...

A dredge swinging system for automatically swinging a dredge in a leftward and rightward direction a predetermined degree in response to the equalization of electronic compass output signals representative of the position of a dredge and electronic memory output signals representative of the degree to which it is desired that the dredge be swung.

A stay or latch for holding in a shut position folding doors of the type consisting of at least a pair of panels hinged at their adjoining edges. The latch of the invention is a channel-shaped member slidably mounted on the top edge of one of the folding door panels and manually slidable along the top edge to a position straddling the hinged junction between adjacent panels such as to prevent one panel from hingedly pivoting relative to the other.