IMPROVEMENTS in MACHINES OR APPARATUS FOR THE PRINTING AND CUTTING OF LOZENGES
Year: 1876

page_text: .LETTERS PATENT to David James McLauchlan, of Union Grove, in the Parish
of Clapham, in the County of Surrey, Civil Engineer, for the Invention of
"IMPROVEMENTS in MACHINES OR APPARATUS FOR THE PRINTING AND CUTTING
OF LOZENGES." A communication from abroad by George Hiram Copping, of
the City of Toronto, in the County of York, in the Province of Ontario,
Canada.
Sealed the 22nd August 1876, and dated the 29th June 1876.
COMPLETE SPECIFICATION filed by the said David James McLauchlan at
the Office of the Commissioners of Patents on the 29th June 1876.
DAVID JAMES MCLAUCHLAN of Union Grove, in the Parish of Clapham, in the
County of Surrey, Civil Engineer. "IMPROVEMENTS IN MACHINES OR APPARATUS
FOR THE PRINTING AND CUTTING OF LOZENGES." A communication from abroad by
George Hiram Copping, of the City of Toronto, in the County of York, in the Pro-
vince of Ontario, Canada.
The first part of the Invention relates to an improvement in the printing appa-
ratus which is used to print the lozenges previously to their being cut from the
sheet of dough, and which consists chiefly of three rollers of suitable material.
The lower roller is covered in the body with cloth or felt, and rotates in a trough
with colouring matter therein, a portion of which is lifted from the trough by the
lower roller aforesaid, and conveyed from the same by an intermediate roller, also
covered with cloth to the printing roller on top. This top roller has four rows of
type at equal distances on its circumference but may have more as the apparatus
may be constructed to use. The motion of this printing roller is intermittent,
each row of type being arranged to act alternately on the under side of the sheet
of dough by means of certain devices, herein-after specified aud described.
The second part of the Invention relates to improvements in the devices for
communicating motion to the main rollers consisting of certain arins, rods, and
levers, herein-after specified and described.
In the accompanying Drawing the same letters of reference indicate the same
parts in all the views and in this Specification.
Fig. 1 is a side view of the machine, one side of the frame being removed to.
shew more distinctly certain portions of the machinery. A represents the frame;

page_text: B, a driving wheel for manual labour power; C, the main driving axle; C₁, C¹, fast
and loose pulley for steam or other motive power; D, the first driving pulley,
which gives motion to the cam shaft E by means of the pulley F and belt G; H
is a vertical frame, on the top of which are placed the cutters O, O; there are two
rows of cutters, and four cutters in each row, though not necessarily restricted to
any particular number of the same. On the aforesaid frame H is cast the bracket r
on which the printing apparatus is placed, and receives with the frame Ha
vertically reciprocating and intermittent motion by means of the cams I, I. On
the axle C is an eccentric R, which with the rod S and arm U communicates a
rocking motion to the axle T, and a curvilinear vibrating motion to the cutter
head V. On the opposite end of the axle T is an arm Y which with the rods
a, c, e, lever b, and ratchets d, f, communicates a rectilinear intermittent motion to
the aprons x and y. On the axle C is a pulley K which with the belt L and pulley M¹
gives a rotating motion to the cylindrical brush N³, which removes the surplus
starch from the under side of the sheet of dough, leaving a clean surface for the
proper action of the type thereon. On the axle C is a bevel wheel a³ which gives
motion to the main rollers O¹, 02, 03, 0%, by means of the bevel wheel a³, diagonal
shaft at, worm a", worm wheel a, and the spur wheels 61, 62, 63, bª.
Fig. 2 is a front view with the front roller removed in order to shew the cutter
frame H with cutters O, 0, 0, 0.
Fig. 3 is a plan, being further explanatory of the various parts of the machinery
herein-before referred to by the same letters of reference thereon, and shewing the
fast and loose pullies C¹, C¹.
Fig. 4 is a plan on an enlarged scale of the printing apparatus with ratchet p
on the end of printing roller M, for giving motion to the same of a quarter revolu-
tion for every ascent of the frame H, or descent of the head V, from either of which
it can be operated as circumstances may require. There is also shewn a depressing
axle with arms c², and short arms d², d, by means of which the rollers W and N
are depressed and kept apart from the roller M, herein-after described. e¹, e¹, are
two spiral springs, one of which is attached on each end of the roller W for the
purpose of bringing the rollers W and N back to their normal position. The surface
of the roller N being then within the line of impact with the circumference of
the printing roller M, the rollers N and W each of them receive a rotating inter-
mittent motion, by simple impact from the printing roller M while supplying itself
with colouring matter by means of said impact, the roller W being pressed down
at the same time into the trough A¹ and receives therefrom a fresh supply. To the
arms c is attached a rod / which slides in a groove in the frame A, and being notched,
will lock itself in the frame A, when so required, so as to keep the rollers W and N
apart from the printing roller M when the inachine is producing unprinted lozenges,
when so required.
Fig. 5 is a side view of ratchet p on roller M.
Fig. 6 is an end view of the printing apparatus, shewing trough A¹, colouring
roller W, conveying roller N, printing roller M, with depressing axle k, arm c³, short
arms d², d², and spiral springs e¹, e¹, also the stopping rod 1, plate x¹ and parallel
guides e², e².
Fig. 7 is a side view in dotted lines of an alternative device for giving motion to
the aprons x, y, z, from an eccentric pin n' in pulley F¹.
Fig. 8 is a front view, also in dotted lines, of an alternative device for rotating
the printing roller M from an eccentric pin n² in pulley F.
Fig. 9 is a device for operating apron z when head V is used as a vibratory head.
I use the rods shewn in the devices 7 and 8 for giving motion to the aprons x, y, z,
when using the head V as a stationary head, and the device Fig. 9 for operating the
apron z on head V when using the same as a vibratory head. I use the rod m¹¹
in Fig. 8 for giving a rotating intermittent motion to the printing roller M. I
use the rollers N and W in the printing apparatus occasionally, as shewn in
Fig. 10.
Having thus described the various parts of the Invention I will now explain the

page_text: operation of the machine. Referring again to Fig. 1 it will be seen that when
dough is placed in front of the upper rollers 03, 0%, it will pass through the
same, and also through the second series thereof 0¹, 0%, from the action of which
the sheet is reduced to the proper thickness, it will then move down the curved
plate which has an opening or aperture through which the brush N³ operates on
the under side of the sheet and removes the surplus starch therefrom before passing
to the printing apparatus. The sheet in passing forward on the apron y passes
over the printing roller M, and is operated on by the type thereon, which rise
through an orifice in the plate x which supports the sheet in its passage onward.
The sheet keeps passing forward and over the cutters O, O, and is also operated on
by them through corresponding orifices in aforesaid plate x¹. The cutters O, O,
being hollow and widening towards the bottom, the lozenges fall through the same,
and are received by the apron y, and thereby carried forward and fall into a
suitable receptacle therefor, while the wastage passes along on the upper apron x²,
and is also deposited in a suitable box for the same.
Having thus fully described the various parts of the Invention, and the operation
of the machine, I claim as new and desire to secure by Letters Patent,-
Firstly. The combination of vertically moving printing devices with vertically
moving cutters, both being positively and simultaneously lifted by the same
lifting mechanism to print as well as to cut from the under side of the sheet of
dough.
Secondly. The mechanism comprising the bevel wheels a², a³, diagonal shaft a',
worm a³, worm wheel aº, for giving motion to the main rollers o¹, o, from the first
motion shaft C, as shewn and described.
Thirdly. The vibrating head V constructed substantially as described, in combi-
nation with the radius arm 1 and fixed centre 4, and the pawl and ratchet h for
feeding the apron z.
Fourthly. The described mechanism for giving to the head V its vibratory move-
ment consisting of the eccentric R, rod S, arm U, and shaft T, as arranged and
described.
Fifthly. The combination with the vibrating head V, operating above the sheet
of dough, of the system of printing rollers and trough beneath the sheet, such
system having a positive vertical intermittent motion in addition to the rotary
motion of the rollers, the whole substantially as specified and described, and for the
purposes set forth
Sixthly, and lastly. In a lozenge machine constructed as specified and described,
the printing rollers M, N, W, in combination with the depressing axle having
an arm and two short arms d², d³, the spiral springs el, e¹, the parallel guides e², e²,
and trough A, as shewn and described, and for the purposes set forth.
In witness whereof, I, the said David James McLauchlan, have hereunto set
my hand and seal, this Twenty-eighth day of June, in the year of our Lord
One thousand eight hundred and seventy-six.
DAVID J. M°LAUCHLAN. (L.S.)