Year: 1888

page_text: Date of Application, 25th Jan., 1888
Complete Specification Left, 5th Sept., 1888
Complete Specification Accepted, 2nd Nov., 1888
Manufacture of the Thes to be
I, AUGUST EGGIMANN, brick-manufacturer, residing at Constance, Grand-duchy of
Baden, German Empire, do hereby declare the nature of this invention to be as
follows:-
My invention relates to roofings composed of hollow tiles, i.e. tiles having channels
passing through the body of the same, and its object is, firstly, to render the con-
struction of the roofing more easy and therefore cheaper than with the hollow tiles
heretofore employed, and, secondly, to produce tiles such as are required for the said
roofing, by means of machinery.
For the first purpose tiles are used which join together at their sides by means of
grooved rebates and which are provided with longitudinal channels closed at the
outer (lower) end, or at both ends, by walls. These tiles are hung on laths in hori-
zontal rows overlapping each other in like mannor as the rows of common flat tiles.
For the second purpose a stream or band of clay issuing from a common brick-
press, and having channels so as to be adapted for the formation of the said tiles, is
compressed a moment for each tile upon a transverse line close to the mouth-piece
of the press, so that the channels will be closed on this line and the band upset a
little. At the same time holes are pierced into the channels for allowing air to enter
thereinto between the points of closure of the same and the cores of the press, in
order to prevent a collapse of the channels by the atmospheric pressure. Finally the
band is divided at or near the line of compression, or the portion deformed by the
said compression is cut away, but so that each tile will remain closed either at one
or at both ends.
The operation of compressing the band may be carried out by two rollers or bars
arranged respectively above and below the path of the band of clay and provided
with mechanism for moving them towards each other, while the holes are pierced
into the band by means of pins forming a comb that is operated simultaneously with
the rollers or bars.
1000

page_text: Improvements in Roofings of Hollow Tiles and in Machinery for the
Manufacture of the Tiles to be Used therefor.
I, AUGUST EGGIMANN, brick-manufacturer, residing at Constance, Grand-duchy of
Baden, German Empire 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:-
My invention relates to roofings composed of hollow tiles, i.e. of tiles having
channels passing lengthwise through the body of the same, and to the manufacture
of the tiles to be used therefor, and its object is, firstly, to render the construction of
the roofing more easy and also cheaper than that of other roofings of hollow tiles
adapted to efficiently protect the spaces covered the same against variations of tem-
perature, and secondly, to produce tiles such as are required for the said roofing, by
means of machinery.
For the first purpose the roofing is composed of tiles of the said kind having their
channels closed at the outer (lower) end, or at both ends, by walls. These tiles are
joined together at their longitudinal edges by means of grooved rebates, and they
are suspended on laths in horizontal rows overlapping each other.
For the second purpose an ordinary brick-press, adapted to deliver a continuous
band of clay having channels in it, and provided with means for dividing the said
band into pieces of the required length, is fitted with a mechanism whereby the band
of clay can be compressed a moment for each tile upon a transverse line close to the
mouth-piece of the press, so that the channels will be closed on this line and the band
upset a little. With the said mechanism is combined a comb, which, when the
band is being compressed, pierces holes into the channels between their points of
closure and the cores of the mouth-piece of the press, in order to allow air to enter
into the channels as the band of clay advances, and to prevent a collapse of the same
by the atmospheric pressure. The band of clay, after having been operated upon by
these devices, is divided at or near the line of compression, or the portion deformed
by the said compression is cut away, but so that each part designed to form a tile
will remain closed either at one or at both ends, as may be required.
On the annexed sheet of drawings a roofing carried out according to my invention
is represented by Fig. 1 in a vertical section taken lengthwise to the tiles. Fig. 2 is
a section on line xx Fig. 1. Fig. 3 shows in elevation a portion of the dividing-
table of a brick-press and the mouth-piece a of the latter, together with a mechanism
adapted for the aforesaid purpose. Fig. 4 is a sectional end view corresponding
to Fig. 3.
.In Figs. 1 and 2, 1 are the tiles composing the roofing and having the channels 1.
As shown in Fig. 1 these channels are closed at the lower end by a walls 12; but, if
preferred, they may be closed in like manner at the top also. The tiles are hung by
means of noses m on laths n, and each upper row extends over the next lower one

page_text: as is usual with common flat tiles. The laths thus do not require to be spaced apart
with particular accuracy as is necessary in roofings of hollow tiles whose channels
are closed by the tiles abutting against each other endwise, and which overlap one
another by projecting rims only. Besides, the tiles may be hung with much greater
facility than the latter, and their cost is less.
The attachment to the dividing-table of a brick-press shown by Figs. 3 and 4,
consists in two standards having the vertical slots e, two disks 6 pivoted each to
one of the said standards and having the cam-slots d, and two rollers c passing with
their journals through the slots d into the slots e, the said rollers being so arranged
as to be respectively above and below the band of clay issuing from the mouth-
piece a, and the cam-slots d having such form that, when the disks b are turned in
the direction of the arrow shown in Fig. 3, the rollers will be brought closer to each
other while being guided by the vertical slots e. Both rollers will be brought closer
Both disks b are connected
to each other while being guided by the vertical slots e.
by rods o to the arms p of a shaft q, having on the opposite side an arm connected by
a rod to a lever g, which, according to the height at which it is arranged, may be
operated by the foot or the hand, and the parts are so disposed that, when the lever g
is depressed, the disks will be turned in the direction of the arrow y, and the
rollers c brought to bear upon the band of clay being between them. Upon the
lever g being released, a weight, k, suspended to an arm, s, of the shaft 2 returns
the parts to their position of repose.
The comb for piercing holes into the channels of the tiles consists in the bar h
with the pins, the said bar being guided vertically in branches of the standards f
and connected by brackets to the aforesaid arm s, so that it will be raised at the same
time the rollers c are caused to operate on the band of clay.
Instead of the rollers c, flat-sided bars may be used, provided they be fitted with
means for keeping their operative surfaces parallel to the band of clay. These means
may consist in lugs formed upon the parts of the journals of the bars projecting into
the slots e of the standards f.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is:
1. A roofing composed of tiles
purpose described.
having channels substantially as and for the
2. The means for manufacturing tiles provided with channels closed at one or at
both ends by walls, consisting in the combination, with a brick-press adapted to
deliver a continuous band of clay having channels in it, of two rollers c, or their
described equivalents, a comb h h¹, and mechanism whereby the rollers or their equi-
valents can be brought closer to each other and the comb can be raised, substantially
as and for the purpose described.
Dated the First day of September 1888.