| 摘要 |
<p>The letter form sealing machine has first and second transporters for the form near sealing heaters as it is folded, working with hotsealing glue. The transporters are connected by a device turning the form through 90 deg.. They can be at right angles to each other, while the device can be formed by a table equipped with rollers inclined to both. The transporters can each comprise a pair of endless belts one above the other, gripping the forms between them, and with a heater box alongside, there being a slot in the box for the glued edge of the form.</p> |
