Improvements in Apparatus for Controlling the Grinding of Flats of Carding Engines.
Year: 1896

page_text: Date of Application, 20th Feb., 1896-Accepted, 21st Mar., 1896
COMPLETE SPECIFICATION.
[Communicated from abroad by JOHN EDWARD PREST, of No. 2 Summit
Street, Cahoes, Albany County, New York, United States of America,
Manufacturer.]
Improvements in Apparatus for Controlling the Grinding of Flats
of Carding Engines.
1, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, 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 :-
This invention relates to apparatus for controlling the grinding of fats of carding
engines and is illustrated in the accompanying drawings in which
Fig. 1 of the drawings is an end view in elevation of my improved apparatus in
position for use.
Fig. 2 is a side elevation of the same with one end broken away.
Fig. 3 is a vertical cross-section taken on the broken line 3-3, in Fig. 2.
Fig. 4 is a vertical section of the grinding roller bearings taken on the broken
line 4-4, in Fig. 1.
Fig. 5 shows a modification.
Fig. 6 is a vertical cross-section taken on the broken line 6-6 in Fig. 5.
Fig. 7 shows a modification.
In the apparatus which embodies my invention, the flats are successively moved
along a stationary and horizontal slideway and the bearings of the grinding roller
are automatically moved toward each inclined flat as it passes the roller, whereby
the teeth are uniformly engaged and ground by the roller, as will be hereinafter
more fully described.
Referring to the drawings, A is a bifurcated bracket frame which supports in
one arm one end of a lever A' by means of a pivot A 2 contained in the elongated
opening or bearing A 3 in the bracket-arm.
The other end of the lever is supported by the cam-shaft A 4 rotary in bearings
in the other bracket-arm, the cam A 5 fixed on the cam-shaft being rotary in an
aperture in the oscillatory end of the lever A¹.
The lever A' supports intermediately of its ends the bearing box A 6 adjustable
vertically by means of the adjusting screw A7 which supports the box in the
vertical slideway A 8 in the lever A.
The grinding-roller B has one of its end journals B' supported by and rotary in
the bearing box A 6.
The other end journal of the roller is supported by like mechanism, not shown.
Rotary movements of the cam-shaft in opposite directions will impart an
oscillating movement to the roller-supporting levers, and approximately vertical
movements to the bearing-boxes and roller.
As a means for operating the cam-shaft, I provide the same with a rock-lever B2
fixed on the shaft, and controlled by the spring B 3.
The rock lever is actuated by means of the hook B4 pivoted at one end upon
the lower end of the rock-lever, and provided at its other end with the catch or
offset B5 adapted to be successively engaged by each of the moving flats B6 as their
teeth engage the roller.

page_text: The flats are connected by chain B7, shown in part only, in the usual well-known
manner, and ride along the track B8 until they strike the guide C which forces
them successively up against the stationary slideway guide C', the guide C being
actuated by the weight C 2 and controlled by the adjustable stop C 3.
The operation of the apparatus is as follows.:
The flats being carried in the direction of the arrow by their connecting chain,
in the usual well known. manner, successively into engagement with the weight-
actuated guide C are forced by said guide upward until their beveled ends strike
the stationary slideway-guide C' which maintains all the flats in engagement
therewith in the same horizontal plane, and at the same angle of inclination.
The hook is so formed that its catch is engaged by each flat just as the flat
engages the roller.
As the flat advances, it carries the hook with it thereby actuating the cam-shaft
and cam to depress the roller-supporting levers, and lower the roller just fast
enough to engage the successive teeth on the inclined flat as it passes beneath the
roller.
As the flat passes the roller, the, inclined nose C5 on the hook engages the
stop C6 fixed on the stationary slideway-guide, and gradually lifts the hook until
it disengages it from the flat, after the grinding of that flat is completed.
The controlling spring immediately restores the parts to the position shown in
Fig. 1, the ground flat passing on over the cut-away or depressed portion C7 of
the weight-controlled guide when it is supported by the track B 8.
By varying the adjustment of the bearing box A 6 I am able to vary the amount
which the apparatus will grind from the teeth in one operation of grinding and to
compensate for wear of the parts; and I am also able by my improved apparatus
to secure very great uniformity and precision.
In Figs. 5 and 6, I have shown the lever D¹ which supports the grinding-roller
bearings pivoted at one end to one arm of the bracket D, and at its other end by a
loose pivotal connection to one arm D7 of an angle lever pivoted upon the other
arm of the bracket.
The angle-lever is controlled by a spring D5 and its other arm D 6 is adapted
to be connected with a flat-engaging hook, not shown.
The pivotal connection between the lever D¹ and the angle-lever comprises a
stud D 4 loosely rotary, and movable longitudinally in the slot D 2 in lever D¹ and
having a screw-threaded stem D 10 integral therewith and separated therefrom by
an integral flange D 13.
The threaded stem is inserted through an elongated slot D3 in the angle-lever
arm D7 along which slot it is adjustably movable, and secured therein by the
nut D 12 and flange 13.
A uniform movement of the angle-lever can be made to impart varying move-
ments to the roller-supporting lever by means of the adjustable pivotal connection
shown, the adjustment being accomplished by loosening the nut D 12 and sliding
the stud and threaded stem along their respective slots, toward the pivot of the
angle-lever to diminish the movement of the roller, and from said pivot to increase
the movement of the roller.
The pivotal connection is locked in its adjusted position by tightening the
put D 12.
In the modification shown in Fig. 7, the grinding roll shaft B' is supported in a
bearing-box G movable vertically in a slideway in the bracket G'.
The bearing-box rests upon an eccentric G 2 fixed on a shaft G 4 rotatively
supported in the bracket.
The shaft G 4 and eccentric are rotated by means of an arm G3 having a
projection adapted to be engaged by the flats successively; and the rotary
movement of the eccentric causes the bearing-box which supports the grinding roll
shaft to move up and down in its slideway thereby imparting the necessary
movements to the roll.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me.
by my foreign correspondent, I declare that what I claim is
1. In an apparatus for controlling the grinding of flats of carding engines, the
combination with a stationary slideway for the flats of a grinding roller rotary in
bearings movable toward and from the slideway and flat-actuated mechanism for
imparting movements to the roller-bearings, substantially as described.
2. In an apparatus for controlling the grinding of flats of carding engines, the
combination with a stationary slideway for the flats of a grinding roller rotary in a
bearing support pivoted at one end and oscillatory toward and from the slideway
and flat-actuated mechanism for imparting oscillatory movements to the roller-
bearing support substantially as described.
3. In an apparatus for controlling the grinding of flats of carding engines, the
combination with a stationary slideway and means for moving the flats successively
along the slideway, of a grinding roller, roller-supporting levers, lever-actuating
cams, and means for operating the cams, whereby the roller is moved toward and
from the slideway, substantially as described.
4. In an apparatus for controlling the grinding of flats of carding engines, the
combination with a stationary slideway, and means for moving the flats successively
along the slideway, of a grinding roller, roller-supporting levers, lever-actuating
cams, a spring controlled, cam-actuating lever, a flat-engaging hook pivoted upon
the cam-actuating lever and provided with an incline, and a hook-releasing stop in.
the path of the hook-incline, substantially as described.
Dated this 20th day of February 1896
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.