Improvements in Driving Gear for Biscuit Machinery.
Year: 1892

page_text: Date of Application, 23rd June, 1892
Complete Specification Left, 23rd Mar., 1893-Accepted, 20th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in Driving Gear for Biscuit Machinery.
We JOHN VICARS, THOMAS VICARS, and JOHN VICARS, Junior all of
56 Seel Street Liverpool in the County of Lancaster, Engineers, do hereby
declare the nature of this invention to be as follows:-
.
In machinery for rolling cutting and panning biscuits driven at high speeds, the
usual appliances for feeding dough to the rolls and for giving intermittent motion
to various parts do not work satisfactorily as regards ready attainment and
adjustment of speed and noiselessness of action.
Now the object of our invention is to provide driving gear for feeding sheets or
slabs of dough to the rollers and for giving intermittent motion to the various
parts, which shall be readily adjustable and move noiselessly and with certainty
and rapidity.
First. A frame pivotted at the centre of motion of the lower dough roller carries
an endless band which passes over rollers free to rotate in the said frame and over
a movable or fixed tongue close to the said lower dough roller. Motion is given to
the said band by cone gear operated by a belt actuated through a pulley on a fast
moving shaft of the machine. Means for adjusting the belt and frame are
provided.
Second. Gear for giving intermittent motion consists of a ratchet wheel secured
to the shaft to be driven, a rocking lever fitted with one or more pawls and a paw!
raising piece held in position on the shaft by means of frictional grip and controlled
as to the extent of its motion by means of fixed or adjustable stops.
Dated the 22nd day of Tuno 1900
Per pro J. T. KING,
J. Johnson,
Agent.
COMPLETE SPECIFICATION.
Improvements in Driving Gear for Biscuit Machinery.
We JOHN VICARS, THOMAS VICARS and JOIN VICARS, Junr. all of
56 Seel Street Liverpool in the County of Lancaster, Engineers, 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:-
In machinery for rolling cutting and panning biscuits driven at high speeds, the
usual appliances for feeding dough to the rolls, and for giving intermittent motion
to various parts do not work satisfactorily as regards ready attainment and
adjustment of speed and noiselessness of action.
Now the object of our invention is to provide driving gear for feeding sheets or
slabs of dough to the rollers and for giving intermittent motion to the various
parts, which shall be readily adjustable and move noiselessly and with certainty
and rapidity.
First. A frame pivotted at the centre of motion of the lower dough roller carries
an endless band which passes over rollers free to rotate in the said frame and over
a movable or fixed tongue close to the said lower dough roller. Motion is given
to the said band by cone gear operated by a belt actuated through a pulley on
a fast moving shaft of the machine. Means for adjusting the belt and frame are
provided.
Second. Gear for giving intermittent motion consists of a ratchet wheel secured

page_text: to the shaft to be driven, a rocking lever fitted with one or more pawls and a pawl
raising piece held in position on the shaft by means of frictional grip and controlled
as to the extent of its motion by means of fixed or adjustable stops.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan, and Fig. 2 an elevation of driving gear for feeding sheets or
slabs of dough to rollers under the first part of our invention. A frame a carrying
a table b is carried freely by the lower dough roller shaft c which forms a pivot on
which the said frame and table can be turned. d are connecting rods pivotted to
the frame a ate and to the lugs fat g. The lugs fare secured to the main
frame of the machine and the connecting rods are made in two parts d d' sliding
one within the other. The parts d are formed with screw threads and are fitted
with nuts which rest on the parts d' of the said connecting rods; by turning the
nuts the frame a may be raised and lowered so as to obtain any inclination found
desirable for the proper feeding of the dough to the rollers. is an endless band
or web which passes over rollers & free to revolve, and over a tongue 7 secured to
the frame a by set screws m. n cone and belt gear driven by a belt o passing
around a pulley p on the fast moving shaft q. r toothed wheels connecting the
belt gear with the roller k¹ giving motion to the band or web i.
Fig. 3 is a face view and Fig. 4 an elevation of driving gear under the second
part of our invention for giving intermittent motion to shafts. 1 is the shaft to be
driven. 2 is a rocking lever carried by the said shaft and fitted with two pawls 3
set so that when one is in gear the other is half way thus allowing of the same
action as if double the number of ratchet teeth were used. Only one pawl may be
used if desired. 4 joint for coupling the lever 2 to the actuating rod. 5 ratchet
wheel secured to the shaft 1. 6 pawl raising piece formed with arms 7 which grip
the shaft and are held in frictional contact therewith by means of the spring 8.
The upper end of the piece 6 is fitted with antifriction blocks 9 over which slide
pins 10 on the pawls 3. 11 stop on the piece 6. 12 pawl shafts. The action of the
apparatus is as follows:-When the lever 2 is moved in the direction of the arrow
the pawls 3 move forward and the piece 6 held by the shaft 1 remains stationary
until as the pins 10 slide over the blocks 9 one of the pawls comes into gear with
the ratchet teeth. The ratchet wheel and shaft and with it the piece 6 then move
forward. As soon as the lever 2 begins its return stroke the ratchet wheel and
with it the shaft I and piece 6 remain stationary so that the pins 10 come in contact
with and slide over the blocks 9 until the pawls are raised out of contact with the
teeth at which time the pawl shaft 12 comes in contact with the stop 11 on the
piece 6 and the said piece moves back with the lever 2 until the motion of the said
lever is reversed. 13 is an eccentric piece and thumb screw attached to the lever 2.
The eccentric fits within an aperture in the piece 6 and when turned and secured as
shown in the drawing, the piece 6 and lever 2 move toget'... in both directions and
the pawls cannot act on the ratchet teeth.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
First. The combination of the dough rollers of biscuit machinery with a
pivotted frame, endless band, and cone driving gear substantially as and for the
purpose set forth.
Second. The combination of a ratchet wheel, shaft. 1 actuating lever, and
pawl or pawls with a frictional pawl raising device substa ly as set forth.
2000.
Ver pro
"
T. KING,
W. B. Johnson,
Agent.
Per pro
T. KING,
W. B. Johnson,
Agent.