Abstract: An advertisement client displays a three-dimensional virtual space. Shown within this three-dimensional virtual space are an avatar, which is a graphical representation of a user in a virtual space, and a three-dimensional advertisement to be moving. The advertisement client stores data for showing the three-dimensional advertisement. An advertisement server connected to the advertisement client through a network includes a timer for measuring a predetermined period of time. Every time the predetermined period of time elapses, the advertisement server sends a signal, for instructing the advertisement client to show a three-dimensional advertisement, to the advertisement client. In response to the signal sent from the advertisement server, the advertisement client shows the three-dimensional advertisement in a predetermined position within the three-dimensional virtual space.

Abstract: In a pull-assembling unit for automatically assembling a pull onto a slider body of a slide fastener, a slider transporting means includes a slider-body-transportation plate member having rectangular notch portions spaced at intervals of plural assembling sections along a top end edge thereof, each for accommodating the slider body. The slider-body-transportation plate member is adapted to be actuated in the slider-transportation path so as to draw a rectangular trajectory in a vertical plane. An actuation upper limit position of a top end of the rectangular notch portion is set to be above a slider-body-placing surface of the slider-transportation path and an actuation lower limit position of the top end of the notch portion is set to be at a retreat position below the slider-body-placing surface. Therefore, the slider-pull-assembling unit has a simple structure and is capable of assembling a pull onto a slider body accurately and securely at a high speed.

Abstract: A tank for a pump is disclosed, which can accommodate a fluid for pumping, such as a chemical liquid. To a lower portion of a tank body which has a pump accommodation recess formed on one side, a weight member is removably secured. Prior to the securing, at the tank installation site the inner space of the weight member is filled with a weight material, such as water or sand, through an opening formed in the upper portion of the weight member. By so doing, when the residual quantity of the fluid for pumping in the tank body of the tank after the installation is reduced to be small, the tank is held in stable state by the weight of the weight member.