Abstract: A puncture sealing agent for sealing an inner surface of a tire comprises a deproteinized rubber latex that is formed by removing protein from a natural rubber latex. The puncture sealing agent includes nitrogen content at 0.1 wt. % or less of rubber solid content of the deproteinized rubber latex, and ammonia content at 0.5 wt. % or less of the rubber solid content.

Abstract: A puncture sealing agent for sealing an inner surface of a tire comprises a deproteinized rubber latex that is formed by removing protein from a natural rubber latex. The puncture sealing agent includes nitrogen content at 0.1 wt. % or less of rubber solid content of the deproteinized rubber latex, and ammonia content at 0.5 wt. % or less of the rubber solid content.

Abstract: An elastically deformable fender adapted to be mounted on one or both of the hull of a ship and a shore installation such as pier, wharf, quay, dock, float or the like structure for cushioning the impact of the ship against the shore installation, which generally comprises an elongated body of one-piece construction made of an elastic material. The body includes a buffer block, an outer surface of which forms an impact receiving surface, and a pair of opposed support walls depending from the buffer block so as to diverge from each other in a direction away from the buffer block. Each of the support walls is bent widthwise and is constituted by leg and heel sections respectively positioned adjacent to and remote from the buffer block, the heel sections of the respective support walls being spaced from each other a maximum span within the range of (0.75.times.W) to (1.5.times.W), W representing the width of the buffer block.

Abstract: A device for receiving power from a rigid conductor extending in the direction of advance to an electrically driven, rail vehicle, which comprises current collecting members independently supported on a base through elastic members having a low spring constant, as far as possible, within the working ranges. The current collecting member has a higher predetermined vertical level than the average static height of the rigid conductor so as to be displaced back to the average static level of the rigid conductor. The current collecting member is maintained in a resilient condition during operation so that it is responsive to any sudden changes in pressure and thus prevent separation from the rigid conductor.

Abstract: There is disclosed a set of current collecting elements used for a current collecting roller which feeds current to a transportation apparatus. The set of current collecting elements comprises a plurality of electroconductive elements arranged in juxtaposed relation to one another, said electroconductive elements being tightly and rigidly secured to each other by a lead wire at the lower portion of said elements.The current collecting roller using the present sets of current collecting elements is protected from being damaged by heat being generated between current collecting member and each of the electroconductive elements.