| 摘要 |
A decorated strip of coated, heat-shrinkable, plastic sheet material is placed on a mold comprising a cylindrical mold body, and attachment means, preferably in the form of two parallel pins extending toward the cylindrical mold body from a pin-supporting wall, and with their ends remote from the wall spaced a short distance from the cylindrical mold body. Holes adjacent the ends of the strip are engaged with the pins. Upon heating in an oven, the strip shrinks, forming a resiliently expansible finger ring, which can be removed from the mold by disengagement from the pins. |
| 主权项 |
1. A mold for making an expansible finger ring from a strip of heat-shrinkable film, the mold comprising:
a mold form having a cylindrical outer surface; and attachment means, connected to said mold form, for temporarily securing, to the mold form, opposite ends of a strip of heat-shrinkable film loosely wrapped part way around said mold form. |
