US15532A - Jerome b - Google Patents

Description

and sharply-defined outlines.

ITE tl':

STATES .ME-T H o o o F ETT'ER l N e --AN oc-RNA'MENH NG GLASS.

Specification forming part of Letters Patent No. 15,532, datedAugust 12, 1856; antedated April 24, 1856. A

To all whom it mag concern Be it known --that I, JEROME. B. SHAW, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Mode of Ornamenting Glass; and I do hereby declare that the following is a full and exact description thereof.

My improvement consists in the use and application of thin sheet-metal patterns in producing ornamental designs upon glass;v The metal 'which I prefer is what is known incomnierce as tin-foil, or. "lead-foil.

In carrying into effect my improved process I first prepare templets of brass, steel, or'other sheet metal whose outlines correspond to that of the design intended to be painted upon the glass. I then place-these templets upon a sheet of foil, and with a sharp knife cut out a foil the same shape and size as the templet. These pat'terus lplace upon the back surface of a plate of glass coated with the white "or eggs, by which the patterns are held fast,

pattern of while 1 brush over the whole surface of the patterns and glass. thcicolorulesired for a After this has dried I remove. the; patterns, which lea'res' the design clear and. the ground colored. Next I color those parts of the glass which form the design with trans ground.

parent 'or translucent-varnish of any desired line; The process is c'ompletedby covering ;tlie buckofthe'plate with-metallic foil. crumpled or corrugated,s o as to more fullydevelop and brighten the colors by reflected light, and at the same time impart the appearance of pearl tofthe design. This foil must-he protected by paper,plaster. of-pari's, putty, or other hovering, such as in the judgment of the artist 'fi'nay in'achcase-be most suitable.

In the longcourseof experiments by which fmy invention was perfected I found the greatest difficulty in applying and removing my patterns, which'atfirst were cut'from tissues, paper, and other textile fabrics, so as to leave the designs with clean-surfaces and smoothv The' elasticity of some, of these materials prevented their uniform close adhesion to the glass, and thus, by admitting the ground color under their edges, destroyed the clearness of outline so essential to the effect of my design; and the, porousnessof others caused them to absorb the ground color and permit it to reach the surfaces, which they should-have, protected from it, while from their-absorbing also the cement which held them in place patterns of such material could not, without great. difliculty and labor, be lifted from the glass after theground color had dried; and it was exceedingly diflicult to remove them without leaving at least a fibrous film upon the glass, which greatly diminished the transparency and beauty-of the design. The necessity of having some substance for thepatternswhich would obviate these difficulties induced me to try, among'other things, thin sheets of lead or of alloys of lead and tin, knownincomzncrce as tin or lead foil,'.which I discovered possesses' every quality requisite for this purpose, and is free fromgthe objections to which all other substances that I have tried are liable.

y This process is peculiarly applicable to the 1 production ofornamental signs and other (lees 'rationsin' which thesame pattern has oftee to bcnreproduced, as a large amount of work of this 'class may be done without multiplying .templels to an inconvenient extent.

jI have been informed that in'the invention of each of the parts of the foregoing process I am anticipatedby others, except in the use of [metallic-toil patterns of the'shapeot' the design cemented to the glass while the ground is being painted, and that paper patterns have been used to paste upon, cloth while paintingv the"; ground of transparent designs thereon. 'Itherefore make no claim to any of these things in the invention of which I may have been anticipated; but

\VhatI claim in the before-described process ot' ornamenting glass as my invention, and desire to secure by Letters Patent, is-

The employment of patterns of metallic foil and cementing the same to and removing them from the glass, as herein set forth, whereby I am enabled to produce ornamental designson glass at a greatly-reduced cost.

In testimony whereof I have hereunto subscribed my name.

JEROME B. SHAW.

In presence of- P. H. WATSON,

JOHN S. HOLLINGSHEAD.