Sheets or Plates.
Year: 1885

page_text: Metal Sheets or Plates.
I, JOSEPH TINN of Bristol Bank Buildings in the City and County of Bristol,
Civil Engineer, do hereby declare the nature of said invention for "IMPROVEMENTS
IN THE CONSTRUCTION OF BOXES USED IN ANNEALING METAL SHEETS OR PLATES,"
to be as follows:-
"
This invention, which relates to improvements in the construction of boxes or
receptacles used to contain metal sheets or plates under process of being annealed,
consists, firstly, in the employment of thin corrugated sheet iron or steel to compose
the sides and roof or top. The latter, the roof or top, is preferably curved or
arched. The ends are composed of plain metal sheets. The sides, roof and ends
are rivetted or otherwise secured together. By the employment of corrugated
sheet iron or steel for the sides and roof, as aforesaid, the thickness of the metal
used may be reduced below that hitherto prevailing in covers of plain or stamped
iron or steel, and better provision is afforded for the correspondingly lessened degree
of expansion and contraction.
Stays or struts may be dispensed with, simplicity in construction is obtained,
strength combined with lightness, the covers are rendered more portable, the heat
of the furnace is more profitably expended, a higher degree of finish is imparted
to the sheets or plates annealed, the time required for annealing is shortened and
economy in fuel is effected.
This invention relates, secondly to the construction of the dishes or tables upon
which the sheets are piled for annealing. The flanges along the sides and ends of
a dish or table are attached thereto by bolts passed through elongated slots formed
for their reception in the flanges and in the dish.
The rails or bearers under the dish are similarly attached. The flanges and rails
are, consequently, adjustable and free to expand and contract independently of the
dish, and they may be readily detached or attached.
Dated this 2nd day of Mal 1007
W. LLOYD WISE,
Applicant's Agent.

page_text: Improvements in the Construction of Boxes Used in Annealing
Metal Sheets or Plates.
I, JOSEPH TINN, of Bristol Bank Buildings, in the City and County of Bristol,
Civil 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 :-
This invention, which relates to improvements in the construction of boxes or
receptacles used to contain metal sheets or plates, and in which the sheets or plates
undergo the process technically termed annealing, consists, firstly, in the employ-
ment of corrugated sheets of iron or steel in the composition of the body or cover.
The sides roof or top, and, if desired, the ends also, are composed of such sheets.
By the employment of corrugated or fluted sheets, a material reduction in thickness
of metal is rendered practicable and greater freedom for expansion and contraction
afforded. I have found in practice that sheets of a thickness of from about one-
quarter to about three-eighths of an inch may be advantageously employed. The
corrugations may be of the usual curved form and may vary in width or pitch or
in depth. Three or five inches are suitable widths for the corrugations.
The sheets composing the sides are arranged so that the fluting or corrugation is
perpendicular to the base or dish on which the cover is, as usual, placed after the
sheets or plates to be annealed have been piled thereon-When the ends of the
cover are likewise composed of corrugated sheets, they are arranged so that,
similarly to the sides, the fluting or corrugation is perpendicular to the base. The
roof or top is preferably arched, the fluting or corrugation being in the line of
curvature thereof.
This invention further consists in making the flanges, which extend along the
sides of the dish or base, and the rails or bearers under the dish, adjustable and
free to expand and contract independently of the dish.
Referring to the accompanying sheet of drawings, Fig. 1 represents a transverse
section of the cover of an annealing box constructed in accordance with one form
comprised in this invention. Under this form of construction the sides a, ends b
and roof c are composed of corrugated sheets of iron or steel. Fig. 2 is a longi-
tudinal vertical section of the cover, and Fig. 3 represents a horizontal section. At
the bottom, and also towards the top, are angle-iron frames by which the sides a
and ends b are tied together-The roof or top c is stiffened by uprights as seen at
Fig. 2. Where the roof or top c abuts on the sides a and ends b the joints are
luted with fire clay for the purpose of excluding air; and the roof may be coated
with fire clay or lime to protect it from the action of the heat.
Instead of being curved, as represented in the drawing, the roof may be made
flat, but I prefer to curve it. The sheets forming the sides and ends of the cover
are so disposed that the flutes or corrugations extend vertically, that is to say,
perpendicularly to the base. In those composing the roof or top the flutes or
corrugations are in the line of curvature of the roof.
Under a second form of construction, not shown in the drawings, the sheets
composing the roof extend upwards directly from the top of those constituting the

page_text: sides and are curved to form a semicircular roof-In this modification the ends are
preferably flat sheets and they are flanged and rivetted to the corrugated roof
plates.
By the employment of corrugated sheets of iron or steel in the construction of
the covers of annealing boxes, as described, such covers may be made lighter than
is practicable with the use of plain or stamped iron or steel, strength is combined
with lightness, and better provision is afforded for expansion and contraction. The
heavy longitunal stays usually employed are dispensed with, a reduced proportion
of the heat of the annealing furnace is expended on the box, a higher degree of
finish is imparted to the sheets annealed, the process is shortened and economy in
fuel is effected.
This invention relates, secondly, to the construction of the dishes or bases upon
which the sheets or plates for annealing are piled. The flanges extending along
the sides and ends are secured to the dish or base by bolts which are passed through
elongated slots formed to receive them in the flanges and in the dish. The rails or
bearers under the dish or base are similarly secured thereon. By the adoption of
this method of attachment the flanges and the rails are respectively free to expand
or contract independently of the dish or base.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what
I claim is
-
First. In the construction of boxes or covers employed in annealing metal sheets
or plates, the use of corrugated sheets of iron or steel to compose the sides and roof
or the sides roof and ends, arranged substantially as hereinbefore described and
shown in the accompanying sheet of drawings.
Second. The method hereinbefore described of securing the flanges of the dish
or base of an annealing box to the dish or base by bolts passed through elongated
slots formed in the flanges and in the dish or base, as and for the purposes specified.
Third. The method hereinbefore described of securing the rails or bearers of
the dish or base of an annealing box to the dish or base by bolts passed through
elongated slots formed in the rails or bearers and in the dish or base, as and for
the purposes specified.