GB514833A - Improvements in and relating to fixing seals to goods - Google Patents

Abstract

514,833. Moulding seals. MILLER, J. W., and PAGE, S. E. May 16, 1938, No. 14601. [Class 87 (ii)] [Also in Group XV] An imitation wax seal is attached to the ends of a ribbon threaded through the selvedge of a piece of cloth by placing a disc, pellet, or plate of a thermo-setting or thermo plastic material in a mould 11 placing the ribbons over the disc &c. in grooves 13 in the side walls of the mould, super posing a similar disc, and then subjecting them to pres sure and the action of heat o solvent; alternatively, a wafe which will cause the discs to adhere may be interposed. The die 18 is surrounded by a spring-pressed ring 20 having projections 17 engaging the grooves 13, the grooves and projections slanting downwards towards the interior of the mould. The surfaces of the mould and die are engraved to produce a desired design on the seal, and they may be formed to produce an irregularly-shaped seal similar to the usual wax seal. In a modification, the ring 20 is dispensed with, and a ribbon guide is attached to the mould 11. The die is attached to the head of a press provided-with means for heating the mould. The discs are preferably formed of urea-formaldehyde or phenol-formaldehyde artificial resin, and are prepared by compressing, without the action of heat, a mass of the material in powder form, heat and pressure being employed in the final preparation of the seal. Alternatively, the discs may be formed of cellulose acetate, and the seal completed by the action of pressure and a solvent such as acetone.