IMPROVEMENTS IN DOOR AND OTHER KNOBS OR HANDLES
Year: 1881

page_text: LETTERS PATENT to Henry Harris Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for: an Invention of
"IMPROVEMENTS IN DOOR AND OTHER KNOBS OR HANDLES." A communication
from abroad by Charles C. Harrington, of Newton, Massachusetts, United
States of America.
COMPLETE SPECIFICATION filed by the said Henry Harris Lake at the Office
of the Commissioners of Patents on the 15th September 1881.
HENRY HARRIS LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN DOOR AND OTHER KNOBS
OR HANDLES." A communication from abroad by Charles C. Harrington, of
Newton, Massachusetts, United States of America.
This Invention has for its object, first, to provide a door or other knob or handle
having a celluloid or other veneer for a wearing surface; and secondly, a nove!
construction whereby knobs of superior quality may be cheaply made.
The celluloid or other veneer may be used in connection with the said knob of
novel construction hereinafter described, or in connection with a knob of any other
construction; and I have described herein in addition to the knob having the
cheap construction, a knob having a core of wood, plaster of Paris, paper-pulp,
papier-maché, or any other suitable material with which the veneer may be used.
In the accompanying Drawings, Figures 1, 2, 3, and 4, illustrate the last named
construction of knob, and Figures 5, 6, and 7, the first named construction.
I will first describe the construction of the knob shewn in Figures 1, 2, 3, and 4.
It is especially adapted for use in connection with a veneer. A represents the
veneer which is preferably made in two parts a, a', and when celluloid is used
these parts are moulded under heat and pressure to the conformation of the
surface of the core of the knob. The core of the knob may be made of any cheap
material, and preferably it is made in two parts. When material capable of being
moulded is employed I compress it upon metallic plates having upwardly projecting
pieces or hooks, as represented in Figure 4, which serve to hold the said material
firmly to the plate. The veneer having been shaped to the surface of the knob
is cemented to the surface of the two portions of the core, and the edge is folded on.
Prine 71

page_text: foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,
First. A door or other knob or handle having a core of any suitable material, a
spindle fastened to the core, and a veneer of celluloid or other suitable material
fastened to the exterior surface of the knob and forming its wearing surface and
finish.
Second. A door or other knob, consisting of a core of wood, papier-maché, paper
pulp, plaster of Paris, or other cheap material made in one or two parts, and
having a spindle or post projecting therefrom, and surface finished by a veneer of
any suitable material cemented or otherwise attached thereto.
Third. The combination of a plate having hooks, projections, or sections formed
thereon as described, and material capable of being moulded, united thereto under
pressure, whereby the projections are embedded in the material and assist in
fastening it to the plate.
Fourth. A door or other knob having a cast metal shell, a post cast with the
shell, and a section E, the said post extending through the said section and
projecting therefrom sufficiently to receive a sleeve or spindle.
Fifth. In a door or other knob, the combination of the cast metal shell D and
the post & cast therewith with the section E and sleeve G, and means for fastening
the sleeve to the post.
Sixth. In a door or other knob, the combination of the shell D with or without
a veneer, the post cast with said shell, the section E, with or without the veneer, a
ring or border for concealing the joint between the two sections, and means for
fastening or locking the section, shell, post, and ring together.
In witness whereof, I, the said Henry Harris Lake, have hereunto set my
hand and seal, this Fifteenth day of September, in the year of our Lord
One thousand eight hundred and eighty one.
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