| 摘要 |
<p>A device for manufacturing articles of a type disclosed in U.S. Pat. No. 3,499,807 in which manual manipulation of the pile-forming basic units has been eliminated to facilitate production on a continuous basis. The device utilizes a multiplicity of unenclosed basic pile units which are maintained in compressed condition by vacuum means prior to delivery in predetermined serial positions onto a horizontal surface, at which point the units execute controlled expansion to fill the available space on said surface, and be subsequently transferred to be adhered to an adhesively coated backing to form a completed article.</p> |
