Year: 1887

page_text: Date of Application, 13th Apr., 1887.
Specification Accepted, 13th May, 1887.
[Communicated from abroad by JOHN FANNON LASH, of the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Merchant.]
I, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex, M.I.M.E.
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 of the invention is to design a metallic pigeon hole case in which all the
parts composing the pigeon holes may be readily built together or taken apart; and
it consists essentially, in making two or more sides of each pigeon hole of metallic
plates made in two thicknesses, the parting between the thicknesses of each side being
sufficiently large to receive the flanged edges of the two sides covering each pair of
adjacent pigeon holes; the whole being constructed substantially as and for the
purposes hereinafter more particularly explained.
Figure 1 represents a view of the pigeon holes being built into a case.
Figure 2 is a detail of one of the double sides of the pigeon hole.
Figure 3 is a detail of the flanged side designed to fit into and connect with the
double side.
Figure 4 is a view of the pigeon holes partially built and showing a plan for
connecting a detachable back.
Figure 5 is a perspective detail of the detachable back.
Figure 6 is a perspective detail of a double bottom.
Figure 7 is a detail of a bottom made out of a single plate.
Figure 8 is a detail showing a corrugated bottom.
Figure 9 is a detail of a double angle-iron for holding the sides together.
Figure 10 is an alternative form for holding sides together.
In the drawing like letters of reference indicate corresponding parts in each figure
but to facilitate the description of the invention I shall refer to specific figures as I
proceed with the description.
In Figure 1 A represents a series of walls bent as shown in Figure 2 so as to form
a hollow partition; the space between the walls being sufficiently wide to receive two
of the flanges, a of the top and bottom partitions B and two of the flanges a of the
intermediate partitions C. The top and bottom partitions B are preferably made aş

page_text: shown in Figure 3. The intermediate partitions C may be made as shown in
Figures 6, 7, or 8-that is to say when made as shown in Figure 6, they consist of
two pieces of metal put back to back with their flanges projecting from opposite sides.
These two pieces are bound together by a band or flanged piece b.
When made as shown in Figure 8 the partition is similarly constructed; the only
difference being that a series of corrugations are made either longitudinally or laterally
as may be desired.
In Figure 7 the partition C is shown made from a single piece of metal the flanges a
being cut so that portions of it shall alternately project from either side of the plate. If
preferred the partition C may be made in the same manner as the partition A. In
such a case a double angle-iron D is provided which fits between walls of the partitions B
and C holding them at right angles as indicated in Figure 9.
In Figure 4 is shown a plan for connecting a back to the pigeon holes made from
the partitions arranged as described. This back consists of a series of plates E having
a series of lugs d cut out of them and bent at right angles to their face as indicated in
Figure 5. These lugs d are designed to fit into the slots e made in the ends of the
said partitions A connecting the said plates E to the said side partitions A in the
manner indicated in Figure 4.
a
In Figure 10 is shown an alternative form as a substitute for the double angle iron
for holding the sides in position. In this alternative form the angle-iron having
cross section of the form of a Greek cross is made hollow and the sides of the pigeon
holes are made in single plates to fit into the hollow arms of the Greek cross.
Having now particularly described and ascertained the nature of the said invention
as communicated to me by my foreign correspondent and in what manner the same is
to be performed I declare that what I claim is :-
1. The combination with a plurality of hollow partitions of a double angle iron as D,
having cross section of the form of a Greek cross and binding said partitions together
substantially as specified.
2. The combination of the hollow partitions A and the partition C provided with
flanges a upon opposite sides thereof and engaging the space between the walls of said
partition A substantially as described.
3. A series of pigeon holes composed of the hollow partitions A partitions B having
flanges a to engage the space between the walls of the hollow partitions and inter-
mediate partitions C provided with flanges upon their opposite sides and all detachably
connected together substantially as described.
4. A series of pigeon holes composed of metallic partitions A and B detachably
connected in combination with the metallic back plates E provided with lugs & designed
to fit into slots e made in the side partitions A substantially as and for the purpose
specified.
5. A series of pigeon holes formed of the hollow partitions A having slots e
partitions B having flanges a intermediate partitions C double angle-irons D and the
metallic back plates E formed with the lugs d engaging in the slots e substantially as
and for the purpose specified.
6. A. metallic pigeon hole case in which all the parts composing the pigeon holes
may be readily built together or taken apart substantially as and for the purpose
specified.
7. A combination of partitions A and B flanges a joining together two or more
pigeon holes substantially as shown in drawings.