Improvements in Combined Sleepers and Chairs.
Year: 1888

page_text: Date of Application, 2nd Oct., 1888
Complete Specification Left, 2nd Aug., 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Combined Sleepers and Chairs.
I, JOHN WILLIAM HENRY JAMES, of Victoria Chambers, Westminster, in the
County of Middlesex Engineer, do hereby declare the nature of this invention to
be as follows:-
The object is to so construct sleepers and chairs out of one piece of sheet metal
preferably steel that sufficient strength and rigidity are secured and the various
parts are formed without unduly straining or deterioration of the metal.
Under the first part I form transverse inverted trough sleepers by pressing a
sheet of metal between dies so as to form a trough having longitudinal corruga-
tions on the top and at the same time or afterwards I press part of the metal
corrugations between dies so as to utilize the metal of the said corrugations in
the formation of chairs.
Under the second part I construct trough transverse sleepers by pressing sheet
metal between dies so as to form a trough having transverse corrugations rising
from the bottom to or about a level with the top of the said trough, at the same
time or. afterwards I press part of the corrugations between dies so as to form
chairs rising above the top of the sleeper.
L1000
Per pro J. T. KING,
J. Johnson,
A cont
CÓMPLETE SPECIFICATION.
Improvements in Combined Sleepers and Chairs.
I, JOHN WILLIAM HENRY JAMES, of Victoria Chambers, Westminster, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The object is to so construct sleepers and chairs out of one piece of sheet metal
preferably steel that sufficient strength and rigidity are secured and the various
parts are formed without unduly straining or deterioration of the metal.
Under my invention I form transverse inverted trough sleepers by pressing a
sheet of metal between dies so as to form a trough having longitudinal corruga-
tions on the top and at the same time or afterwards I press part of the metal of
the corrugations between dies so as to utilize the metal of the said corrugations
in the formation of chairs.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a transverse section, fig. 2 a longitudinal section and fig. 3 a plan of a
combined sleeper and chair under my invention.
a is a sheet of metal, steel being found most advantageous, pressed between dies
so as to form a trough having longitudinal corrugations 6 on the top. c jaws pressed
out of the metal 6 forming the corrugations so that no strain is thrown on the
metal forming the main body of the sleeper whilst the corrugations give strength
to the combined sleeper and chair. The jaws are formed at the same time that
the sheet is made into trough shape or afterwards as found most convenient.
A hydraulic press with suitable dies is found to answer well for forming the
combined sleepers and chairs. The metal should be at a red heat whilst being
shaped.

page_text: Having now particularly described and ascertained the nature of the said inven
tion and in what manner the same is to be performed I declare that what l
claim is,
Combined sleepers and chairs constructed substantially as herein set forth.
D
C
1000
Per pro J. T. KING,
J. Johnson,
Agent.