The training apparatus is used for the planned strengthening of individual muscle groups. It preferably has two spring bodies, each having a terminal gripping element. The gripping elements of one spring body are terminally arranged on one bar-like spring element and the terminal gripping element of a second spring body on a bar-like spring element can be inserted in the gripping element of the first spring body. Thus, the apparatus can either be tensile stressed and/or compression stressed.

A training or servicing kit comprises a portable electronic simulation of an apparatus, the simulation including manually operable means to sense and/or control parameters of the simulation, and a computer with associated software serving in use to lead an operator through a training or servicing programme in dependence upon the values of parameters determined by the operator by means of the manually operable means.

A device for practicing a swing in which an elongate shaft is secured to extend forwardly of a person and a guy is pivotally secured to the shaft and to a forward portion of an instrument to be swung whereby to determine the arc of said swing. In other embodiments, the arc is determined by guiding elements including laterally extending supports, guy lines secured, forwardly and rearwardly of the user, extendible lines, rigid frameworks and combinations thereof. The disclose structure may be used...

A low cost disposable pair of training pants formed substantially entirely of paper. These pants include an outer paper sheet that defines the waist opening and leg openings, and an inner paper liner secured to inner surfaces of the outer sheet. The liner is selected for its water absorbency characteristics. The outer sheet may be selected primarily for its strength and flexibility.

A training cartridge includes a metallic cartridge case with a case shoulder and dummy projectile having a gas exhaust opening at its front end. A propellant charge powder chamber of the cartridge case is closed in the forward direction by means of a cup-shaped closure element that is inserted in the cartridge case close to the case shoulder and that bursts or ruptures during firing under the action of the powder gases along predetermined intentional breaking zones. Toward the rear, the powder c...

A shoelace is described for use by young children or the handicapped, which facilitates tying of a bow. The shoelace has opposite end portions which are just stiff enough to substantially retain the shape to which they are bent while permitting children to easily bend them during the tying of a bow. This enables a child or handicapped person to bend the end portion to the shape required for one step of tying, and to "freeze" the shoelace in that position while he manipulates the other end portio...

An arrangement for facilitating the training of personnel in the handling of recoilless rifles which includes an accessory for insertion into the rifle launcher for giving it the same weight and center of gravity as a loaded launcher.

A teaching device for use in the instruction of putting a golf ball comprising a club head, an elongated handle, an impact surface effective to be urged away from the face of the club head, a loading mechanism effective to preset the force to be exerted against the impact surface to any of an infinite number of settings within a predetermined range, and a release mechanism for activating the device when the club head is pressed down against the putting surface.

A toothbrush is disclosed, comprising a body, including a handle and a brush head portion thereof, bristle-retaining means slidably attached to the brush head portion of the body for reciprocating motion exclusively in a longitudinal direction with respect to the body, and a plurality of bristles rigidly attached to the bristle-retaining means, also for exclusive longitudinal motion with respect to the body, to be used for purposes of training proper toothbrushing techniques.

A method and apparatus for simulating artillery and other types of indirect field of fire gunnery as an aid to training gunnery observers comprises projecting onto a screen 11 a terrain photographic image. Computer generated artillery shell bursts are overlaid on the terrain photographic image at locations commanded by a trainee observer 19 by projection through a video projector 14 connected with a computer 15. Instructions are entered in the computer by an operator 17 who may be a training ins...