Abstract: A sphere is attached to a holding table receiving a load of an object. A friction contact surface taking the shape of an internal surface of a sphere which comes in contact with the sphere is formed on the holding table. The friction contact surface is formed between a circular small diameter edge and a circular large diameter edge, the circular small diameter edge having a certain radius from a vertical line passing through a center of the sphere, and the circular large diameter edge setting, as a maximum radius, a radius along a horizontal surface passing through a center of the sphere. With increasing an acceleration of the earthquake, a state in which the sphere is horizontally moved integrally with the holding table is changed into a state in which the sphere comes in sliding contact with the friction contact surface to spin in the holding table.

Abstract: An earthquake-proof object support device comprising, a sphere of a material having strength high enough to support an object to be supported, and a support frame holding said sphere for supporting said object. At least three devices of the present invention are secured to the bottom of an object to be supported and placed on a flat floor. The devices are attached as legs to a large-scaled computer, for instance and placed on the floor of an office building. The object supported by the devices of the present invention stays at its initial position in accordance with the law of inertia when an earthquake occurs, and horizontal motions of the floor of the building are absorbed by the devices of the present invention. A vertical seismic force is transmitted to the supported object but the object is stably held horizontally as is the case with an object in a vertically moving elevator.

Abstract: An earthquake resisting support construction which supports a structure at a required position on the surface of ground having a bearing capacity of soil large enough to withstand the weight of the structure, comprising, at each support position: a number of base-stones buried and arranged in the ground to provide a horizontal finished top surface; a cornerstone having parallel top and bottom surfaces and disposed on the number of base-stones to produce friction between the finished top surface of the base-stones and the bottom of the cornerstone; and a pedestal having a centrally-disposed void in its bottom and mounted on the cornerstone, with the marginal portion of its bottom held in frictional contact with the top of the cornerstone.

Abstract: An animal experiment apparatus is disclosed. Heated air or cooled air introduced into an air fan chamber provided in a housing is circulated in the housing by an air fan. The housing is vertically divided into a plurality of chambers by reticulate partition shelves and a cage containing a small animal is put into and out of each chamber. The housing is provided with a commutator plate for controlling the circulating air and/or a temperature detector, a humidity detector, a control unit for controlling the housing in accordance with signals from the detectors, and a brightness-controlling device.