double row. Thusa clear space is left for and is adapted to have pasted or secured within it any the attendant to walk upon. The scoop is jointed in tion. The lower piston contains a valve opening up- matter for display, such as advertisements, etc. An ward, and a similar valve closes the lower end… … pling, and in Fig. 3 the method of The device, it will be seen, can be applied to many com- its sides and through the frame. The rear portion in matter is allowed to extend. Within the base a trun- mon kinds of pumps. operation rests upon the ground. Hooks are provided cated cone of metal or other…
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