Improvements in Smiths' Bellows.
Year: 1889

page_text: Date of Application, 17th Sept., 1889-Accepted, 19th Sept., 1889
COMPLETE SPECIFICATION.
Improvements in Smiths' Bellows.
I, WILLIAM GARSIDE COOK, of Glendentan, Bridge-of-Weir, in the County of
Renfrew, North Britain, Steel and Iron Wagon Builder, 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 relates to improvements in smiths or long-shaped bellows, and has
for its object by the employment of a cast iron or other metal headstock-to form a
better working and more durable hinge for the movable boards of the bellows than
has been made hitherto, to facilitate the manufacture of the said bellows, and to
provide a satisfactory seat for the check valve in the nozzle pipe.
In carrying out the objects of this Invention a metal headstock is provided which
may be either cast in one piece, or made in two portions and screwed together, the
one part being connected to the boards of the bellows, whilst the other, which
furnishes the seat for the check valve, is secured to the nozzle pipe.
In order that my Invention may be more fully understood and readily carried into
effect will proceed to describe the drawings hereunto annexed.
Figure 1, is a side elevation of a smith's bellows constructed according to and
constituting my present Invention. Figure 2, is a longitudinal section of the
headstock with a portion of the boards and nozzle pipe attached. Figure 3, is a
plan of the same with the boards removed, and Figures 4 and 5. aro end elevations of
the headstock, looking on the hinge and valve ends respectively, whilst Figure 6, is a
sectional plan of the headstock as arranged in two portions and constructed according
to my Invention.
My present improvements consist in providing the bellows with a cast iron or
other metal headstock A, having a somewhat large rectangular core or opening at the
end next the boards B and C, as represented at Figure 4, and a-smaller circular core or
opening at the opposite or check valve D end, as shown at Figure 5.
For the reception of the fixed centre board C, which rests on the lower part of the
interior of the headstock A, a slot is formed in each side of the headstock, dividing
the base from the sides to nearly half the length of the headstock, as represented at
Figure 2, the base being strengthened by a central rib E. The centre board C, is
then secured to the base of the headstock by bolts or screw pins F.
The upper and lower movable boards B, are pivoted to the headstock A, in each
case by a pin G, which passes through a hooked plate or hinge H, secured to the
internal surface of the boards B, and when erected is situated between two lugs I,
cast on the outer surface of the headstock A. To prevent the outer surface of the
movable boards B, that is the top of the upper board B, and the bottom of the lower
board B, from. projecting unduly beyond the headstock A, the said headstock A is, at
a short distance from the corresponding end, increased in depth, the hinges H and
lugs I, being placed in the recesses or receptacles thus formed.
At the same end of the headstock A, and near the beforementioned lugs 1, a
suitable groove is cut across the top and bottom of the headstock A, and a piece of
hardwood K dovetailed into the same for a purpose which shall be hereinafter
explained.
The check valve D which is pivoted to the headstock A at M, is of the usual clack
valve pattern and its seat is formed by the inclined circular end of the headstock A.
The larger end of the nozzle pipe N, is slipped over a portion of the headstock A,
which portion is reduced in diameter and tapered to receive it, the pipe N, being
held firmly in position by a wrought iron ring O; which is shrunk on over all. If
desired projections may be cast on to form connections for a reversing pipe or it
may be screwed for a screwing pipe.

page_text: To make the bellows air-tight at the junction between the boards B, C, and
headstock A, a leather or other Hexible hood or covering Q is used. This hood Qis
secured at one end to the boards B and C, in the ordinary manner, and is fixed at the
other end to the headstock A, by being nailed to the pieces of hard wood K, to the
edges of centre board C, and finally tied by wires at the grooves P, thus making a
perfectly air-tight joint whilst allowing the necessary play for the oscillation of the
boards B.
Instead of making the headstock A, in a single casting, it may be made in two
pieces and screwed together as shown at Figure 6, of the annexed Drawings. The
other portions of this headstock are the same as hereinbefore described for a headstock
of a single casting and need not be repeated.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I claim
15:-
First. The general arrangement and combination of parts constituting the improved
smith's bellows with the beadstock A, in one or two pieces substantially as herein-
before set forth with reference to the annexed Drawings.
Second. In smiths' bollows the arranging of the lugs I, and receptacles for the
hinges H, and boards B, substantially as described and for the purpose specified with
reference to the annexed Drawings.
Third. The method of inserting and securing the centre.board C, to the headstock A,
substantially as herein described and illustrated.
Fourth. The means for securing the leather hood Q, to the headstock A, substantially
as hereinbefore described and for the purpose specified with reference to the annexed
Drawings.
Dated this 16th day of Sentomhar 1290
JOHNSONS,
By D. Drysdale Austin,
115, St. Vincent Street, Glasgow, Petitioner's Agents.