Year: 1898

page_text: Date of Application, 11th Feb., 1898-Accepted, 2nd Apr., 1898

page_text: On this matrix plate a moulding plate 8 is fixed on which the cement mortar or the
like is spread for the purpose of forming the body of the tile and the lower covering
strips or bars.
To form the upper covering strips or bars, a conical hopper 10 having a
partition 11 is employed, said partition being adjustable vertically in the same, so
that when it is in its lowest position the two cover bars a which run parallel to
one another may be formed.
To cut off simultaneously the two covering bars a, two knives 13 and 14 are
provided which move in opposite directions to or from the partition 11. At both
ends of the conical hopper, discs 15 are fixed, which, as shown in Figure 9, are
provided with vertical grooves 16 and two horizontal grooves 17. In the vertical
groove an arm 171 connected with the hopper partition 11 is inserted. In Figure 8
this arm 17 is alone shown and for the sake of clearness a portion of the hopper
and its partition are removed. Drawbars 18 are inserted in the horizontal
grooves 17 so that the said bars cannot revolve on their axes in the action
hereinafter described. In order to allow of the knives being exactly adjusted,
said drawbars are divided and may be shortened or lengthened by means of a.
screw sleeve 19 or the like. The connection between the drawbars and the
knives 13 and 14 is effected by means of arms 20 attached to the latter and
connecting rods 21.
In order to allow of the knives being moved apart or towards one another
simultaneously. each guide disc or plate 15 is provided with a bolt og pin 22, and a
roof shaped bent lever 23 pivots on said bolts carrying at each of its ends a disc 24
which bears against the guide discs or plates 15. Each disc is as shown in
Figure 10 provided with two symmetrical eccentric grooves 25 and 26 on the side
opposite the guide disc or plate 15. Rollers 27 which are carried at the ends of
the drawbars 18 of the knives engage in the guide plate 15 with said eccentric
grooves 25 and 26 respectively. If therefore the lever 23 be moved upwards the
two knives 13 and 14 are operated and cut off the surplus cement. The upward
movement of the lever 23 only requires to be made to a small extent up to the
point where the eccentric part of the grooves 25 and 26 develops into a circular
shape. As the end of each of the arms 17¹ connected with the partition 11 is bent
downwards and carries a roller 28 which engages with another groove 29 in the
disc 24, no movement of the partition 11 takes place during the first part of the
movement of the lever 23 because the first part of the groove 29 is circular. Only
from the part where the grooves 25 and 26 become circular, the groove 29
commences to be shaped eccentrically and therefore only on the further movement
of the lever 23 is the partition 11 effected, that is to say raised. As for the further
procedure, a further upward movement of the lever 23 is necessary, it is self-evident
that the groove 29 must be made circular after the partition 11 has been raised.
In speaking of circular, the point of rotation of the disc 24 is always considered as
the centre of a circle.
The guide bars or discs 15 are provided with two downwardly directed pins 30
and 31, the latter of which is made somewhat longer than the former.
Both pins
are moved vertically in carriages 33 which latter are adjustably mounted in the
ordinary manner on shafts 32. As however the discs 15 are connected with the
hopper 10, the latter is of course moved simultaneously with the carriages.
The longer pins 31 pass through the carriages 33 and engage in recesses 34 of the
shafts 32 so that as soon as the hopper is in its lowest position it cannot be moved
along said shafts with the carriages. In order to allow the hopper to be raised
on the further upward movement of the lever 23, the said lever is provided with
slide rollers 35, whilst each carriage 33 has a straight smooth surface 36 so that
after the partition 11 has been raised said slide rollers come in contact with the
slide surfaces, form there a support for the lever, and thereby effect the raising of
the entire hopper arrangement and also the unlocking of the carriages. When this
has taken place the whole arrangement is pushed to the right so that the cement

page_text: roofing tile thus formed is released and may be ejected by means of the
device 9.
For the purpose of providing the tile with the saw tooth corners, the shaping
frame 14 is formed at the respective places with internal saw teeth as shown
in Figure 11.
To embed in the tile the hook e employed for securing the tile against storms the
shaping plate 8 as shown in Figure 12 has two recesses 41 and 42, the former
serving for making the projection d and the latter (42) for inserting or receiving
the wire hook e.
The working of the apparatus is as follows:-
Assuming that the carriage and hopper arrangement have been pushed to one
side so that the matrix 7 is free or.exposed, the shaping plate 8 is then laid on said
matrix, and on the plate 8 the wire hook e as shown in dotted lines in Figure 12.
The said hook is held firmly with one hand, and cement mortar is spread on the
shaping plate, distributed thereon and firmly rammed down so that the body of the
tile and the lower cover strips b are formed. To form the latter the shaping plate
as shown in Figures 7 and 12 is provided with recesses 43.
When the body of the tile with the under covering bars or strips b and the
suspension hook projection d is so far ready, the carriages 33 together with the
whole apparatus for making the upper covering strips a are pushed into the position
shown in Figures 6 and 8, the lever 23 is pressed downwards, cement mortar is
conveyed into the hopper 10 and rammed firm, the knives 13 and 14 move in the
manner hereinbefore described and the carriages 33 with the devices connected
therewith are again pushed back so that the finished cement-roofing-tile is released.
The shaping plate 8 together with the cement-roofing-tile is then expelled or
ejected by means of the device 9, as hereinbefore described.
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 is :-
:-
1. A tile having parallel cover bars or strips (a and b), the edges of which have
saw like teeth which engage similar teeth on the next tile in such a way that the
projections (c) of the upper cover bars (a) coincide and a hook (e) on the under
surface of the tile, connected at one end with the body of the same and capable of
being inserted in the joist of the roof, thus forming a protection against storms or
gales, substantially as hereinbefore described and shown in the accompanying
drawings.
2. In a machine for shaping cement roofing tiles having two or more cover strips
or bars lying parallel to one another, an arrangement comprising knives (13 and 14)
capable of being adjusted and moved by means of a single lever (23) eccentric
discs (24) mounted thereon, and a partition wall (11) dividing a conical hopper (10)
into two parts raised by means of arms 17¹ releasing by the lifting of the whole
arrangement the cover bars on the tile formed and simultaneously unlocking
carriages (33) adjustably mounted on shafts (32) after which the entire apparatus
for forming the upper covering strips of the bars may be pushed away and the
finished tile ejected, substantially as described.
3. In a machine for shaping cement roofing tiles the arrangement of a double
lever (23) for forming two adjacent cover bars or strips (a), the partition (11) of
the hopper being vertically adjustable by means of two eccentric discs (24) with
the object of releasing the cover bars, substantially as described.
4. In a machine for forming cement roofing tiles, a hopper (10) connected with
the carriages (33) by means of pins (30 and 31) mounted on said hopper and guided
in said carriages, an arrangement of slide rollers (35) mounted on the operating
lever (23) and slide surfaces (36) formed on said carriages, for raising by the
upward movement of the operating lever, the whole hopper arrangement and simul-
taneously releasing the locking device between said carriages and the guide
bars (32) formed by means of one of the hopper pins, substantially as described.

page_text: 5. In a machine for forming cement roofing tiles, the combination of a lever (23)
oscillating on the hopper (10) and having eccentric discs (24) each of which discs
has two eccentric grooves (25 and 26) for the purpose of adjusting the knives
(13 and 14) and a groove (29) partly circular and partly eccentric for the purpose
of moving vertically the hopper partition (11), substantially as described and
shown.
Dated this 10th day of February 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.