Improvements in the Manufacture of Pails and similar Metallic Vessels.
Year: 1890

page_text: COMPLETE SPECIFICATION.
[Communicated from abroad by HENRY WELLS WATSON, of 228, Jersey Street,
Buffalo, New York, United States of America, Gentleman.]
Improvements in the Manufacture of Pails and similar Metallic
Vessels.
1. HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings in the County of Middlesex, 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 that class of metallic vessel which are constructed of tin
or other sheet metal and provided with strips, plates or pieces of zinc for the
purpose of preventing rusting. The object of this invention is to secure the zinc to
the tin in a simple, durable and inexpensive manner.
In the accompanying drawings,
Figure 1 is a plan view of a metallic pail provided with these improvements,
the bottom being partly broken away and shown in a section taken on the line z of
Figure 2.
Figure 2 is a vertical section of the bottom on line x x, Figure 1, drawn to an
enlarged scale.
Figure 3 is a vertical section through the side and bottom of the pail on the
line
yy Figure 1.
Figure 4 is a view of a portion of the bottom illustrating the manner of con-
structing it.
Like letters of reference refer to like parts in the several figures.
A represents a pail made of tin or other sheet metal of ordinary dimensions; a the
sides of the pail and 6 the bottom thereof.
c is a rectangular strip of zinc or some other metal different from that of which
the pail is constructed, and secured to the bottom of the pail for preventing the
metal of which the pail is made from oxidizing. dd are similar strips extending up
the sides of the pail; from the bottom to the roll or wire e.
The bottom of the pail is not formed with openings, but is imperforate it being
formed into two parallel folds ffextending from side to side of the pail, these folds
being formed to receive the depressed parallel edges g g of the strip c. The form is
such that the inner surface of the bottom is straight or smooth that is to say, the
inner surface of the strip c and the inner surface of the pail-bottom bare in the same
plane. In this construction the ridges hh, which are formed on account of the
folds ff are on the under surface of the pail bottom and out of the way, and they
serve as stiffeners to strengthen the bottom and prevent it from sagging or bending
under a load, as from the weight of the contained liquid.
The sides of the pail are usually formed in two parts with the seams running
straight from the top to the bottom of the pail. In placing the side strips d d, these
seams are utilized as folds, similar to h h to hold one edge of each strip, other folds
like being formed for the other edges of the said strips. The rail may be provided
with any kind of a pail to suit the taste. These anti-rusting strips, applied and
held in the manner shown and above described, may of course be applied to pans,
cups dippers or other vessels made of tin or sheet metal.
The pail is preferably formed with an extension or foot i extending downward
to or beyond the lower surfaces of the ridges h h in the bottom of the pail.
In constructing the pail bottom, I usually cut notches k, Figure 4, in the tin before
forming the folds to hold the zinc c. These notches are separated the width of the
zinc, and the folds in the tin are made along the dotted lines at the middle of the
notches. When the folds are completed, the lines // become the dotted lines nn, and
LD

page_text: the side o of each notch meets the side p. There is then but one thickness of tin
projecting beyond the respective ends of the zinc. After the folds are made the
bottom is given its proper circular form, indicated by dotted circular lines. The sides
of the pail are constructed in a somewhat similar manner.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent 1 declare that what I claim is :-
First. A pail formed with parallel folds across the bottom thereof and a strip of
metal held by said folds the edges of the strip being depressed substantially as
shown.
Second. A pail formed with parallel folds across the bottom thereof and a
strip of metal held in said folds the upper surface of said strip of metal
and the upper surface of said pail-bottom being in the same plane, substantially as
described.
Third. A pail formed with parallel folds extending across the bottom thereof and a
fold extending up the side of the pail from each of the ends of the respective folds
across the bottom, a strip of metal held by said folds across the bottom and strips of
metal held by the adjacent folds at the sides of the pail, said strips of metal having
their respective visible faces flush with the adjacent inner surfaces. of the pail,
substantially as shown.
Dated this 20th day of October 1800.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.