Year: 1894

page_text: Date of Application, 18th Dec., 1894-Accepted, 9th Feb., 1895
Fig. 5. is a view of three roofing tiles.
As will be seen from Figs. 1 & 2 of the drawings, the roofing tile is provide.]
with an aduncous rabbet h, and adjoining this at right angles a transversal
ledge l.
OF
On the opposite side there is a rectangularly arranged ledge a. and a sharp edged
rabbet a'. By the interlocking of the rabbet and ledge a
"dead space
shut-off interstice is provided which will obviate the coming through of any rain
or snow.
As shown in Fig. 5. the ledge a. on tile 1. forms a continuous whole, with
ledge a¹ on tile II. If now a fourth tile were added the straight edge h. would
completely cover the two contiguous parts of ledges a. and a¹.
The notch or groove g. ensures a tight joint at the edges, because edge a. of
tile I. will always interlock with the groove g. of tile 11.
Figs. 6 to 8. show the apparatus for producing the aforesaid tiles.
Fig 6. shows the arrangement fastened on the moulding table f. as seen from
above, with the "gauge" turned back, and the incomplete tile showing.
Fig. 7. shows the arrangement with the "gauge" M. turned down, (ready for the
extra filling to form the rabbits) likewise as seen from above.
Fig. 8. is a section through Fig. 7. a. shows the mould, b. the tile; into this
mould there is loosely inserted an iron plate d. which with its upper side fits exactly
into the lower side of the tile, and which will therefore serve to mould the lower
surface of the tiles. Superimposed to this iron plate, however, is a sheet of
metal-plate p, which is shaped and moulded exactly like the iron-plate d
itself. The iron plate and superimposed metal sheet having been laid into
the mould, the cement is rammed into it and is there strickled off, above
with a 66
"
gauge or strickle-board, corresponding to the desired upper surface of
the tile. In order to ensure better strickling and a safer guiding of the strickling
gauge," the two opposite ends of the mould are "strengthened" (i.e. made
thicker) at n, so that the two surfaces and w. which are placed at a different
height, will each form with the wall of the mould a surface of equal width
at either end, the only difference being that the one, v. lies higher than the
other

page_text: The brick having so far been finished, the rabbet "moulding gauge " M. which is
fastened with a revolving point on the moulding table f. is placed in position as in
Figs. 7 & 8 and the rabbet groove i. i. is then filled with cement, which is rammed
into it. Thereupon lever h. which is pivoted on pin u. is pressed forward, in the
direction indicated by an arrow, whereby, owing to the arrangement or use of bell
crank levers or 66
squares", the guide-bars t, t, t, t, and with these the rabbet
rails fastened to them, will be moved backwards and expose the aduncous rabbet.
The part or corner piece s. which forms a straight or vertical sided rabbet, is
fastened to the gauge and is used, as otherwise the two rabbet rails would press
against each other if they met at the angle, during the retrograde motion.
Thereupon the rabbet gauge M. is put back again and the tile is lifted out by a
lifting-out arrangement, acting from underneath, and the tile, together with the
sheet of metal plate underneath is taken away.
Figs. 9 to 13. show another kind of such sharp edged rabbetted tiles.
Fig. 9. shows it as seen from above,
Fig. 10 as seen from beneath.
Fig. 11. shows a section through two interlocked tiles.
Fig. 12. a longitudinal section through three tiles joined longitudinally.
Fig. 13. shows a number of tiles joined together.
A double rabbet a. on the lower side of the tile joins into a double rabbet a¹ on
the upper surface of the adjacent tile. The ledge or fillet b. of each upper tile
joins upon the "head fillet" c. of each underlying tile, so as to form a tight joint,
the places marked i. in Figure 13. alone requiring to be filled in with mortar or
other material in order to constitute a perfectly rain and snow proof roofing.
As owing to the construction of the tiles described a filling-in of the joints is
only required at the places marked i, air can still circulate through the other joints
which however prevent the intrusion of water,-whereby any retention of moisture
on the lower surface of the tiles and consequent formation of mould or fungus, and
the like, is obviated.
The apparatus shown in Figs. 14 to 16 serves for the production of tiles as shown
in Figs. 9 to 13.
Fig. 15. is a view with the "gauge" turned down, and Fig. 16. is a section
through Fig. 15.
An iron plate d. which fits with its upper surface exactly into lower surface of a
finished tile, is inserted into the mould a. The mould is filled with cement, which
is rammed down, the surface being strickled with a
66 gauge "which will give to
the upper surface of the tile the correct form, as shown in Fig. 14 by b.
Now the moulding gauge c. which revolves round f. on table 1. is turned down
over the mould a. and the groove i. is filled with cement which is rammed down.
Thereupon the lever h. which pivots at v. is moved in the direction of the arrow,
whereby the head fillet rail k.which is fastened to a fork g. which is guided at n.—
is moved back together with the fork so that the projecting, sharp edged head-
fillet s. of the tile (Fig. 16) is left standing and exposed. After turning the
gauge".
c. back again, the tile is raised by means of a suitable appliance acting
from underneath and is thereupon dried.
66
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. Roofing tiles of cement or other suitable material with an aduncous rabbet (/)
and adjoining transversal fillet or ledge (1) as well as a fillet or ledge on the
other side (a) and a sharp edged rabbet (a'). (Figs. 1 to 5.)
2. Bent (curved) roofing tile of cement characterised by a double rabbet on the
upper and lower surface respectively on either side, as well as sharp edged
head rabbet, (b) upon which the fillet or ledge c. of the adjoining tile fits.
(Figs. 9 to 13).
3. An arrangement for making the tile described in Claim 1, characterised by

page_text: guide rails (t) arranged on the "gauge" (M), with angles or "squares (g)
together with the two rabbet rails (m) which can be moved in either direction by a
lever (h) pivoted on a pin (u). (Figs. 6 to 8.)
4. An arrangement for making the roofing tile described in Claim 2. characterised
by a fork (g) joined to a transversal bar (n) on the gauge (c) and to which a
"head"-rabbet rail (s) is fastened which by moving the lever (4) can be shifted in
either direction by means of the fork. (Figs. 14 to 16.)
Dated this 18th day of December 1894.
J. E. EVANS-JACKSON & Co.,
Agents for the Applicant.