Improvements in Apparatus for Testing the Accuracy or Truth of Flat, Cylindrical, or other Surfaces, applicable for Testing the Wire Surfaces of Carding Engines.
Year: 1890

page_text: Date of Application, 15th Mar., 1890
Complete Specification Left, 13th Dec., 1890-Accepted, 28th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Testing the Accuracy or Truth of
Flat, Cylindrical, or other Surfaces, applicable for Testing the
Wire Surfaces of Carding Engines.
We, SAMUEL HERBERT BROOKS, of West Gorton, Manchester, in the County
of Lancaster, Machinist, and JAMES EDGE, of Gorton, in the said County, Mill
Manager, do hereby declare the nature of this invention to be as follows :—
This invention is primarily designed with the object of providing a portable
apparatus for testing the accuracy or truth of the various surfaces in carding
engines, comprised of the points of the wire clothing, after such have been ground,
and without removing same from their working position, though it may also be
applied or adapted to the testing of other surfaces.
It consists essentially of a double slide, or slide and piston with two movements,
one at right angles to the other, which move longitudinally over a fixed bed,
carrying with them an index and pointer, the pointer indicating on a scale the
movement of the piston or second slide, caused by any inequalities of the surface
being tested.
In carrying out the invention we provide a long bed or slide to extend across the
surface, supported at each end by a bracket or other device by which it rests upon,
or is connected to, the surface to be tested. Upon this bed is arranged a double
slide with two movements, one at right angles to the other. This double slide com-
prises a head or stand which slides to and fro the length of the bed, and a piston or
slide which passes through it. One end of the piston or slide is adjustable, and is
formed to rest upon or against the surface, the other end of the piston rests against
or is connected to the short end of a compound or other lever, preferably mounted
on adjustable centres. Any movement of the piston or slide, up or down, moves
the short arm of the lever with which it is connected, and this moves the long arm,
at the end of which, is a pointer, to a much greater degree. The pointer moves in
connection with a scale or index plate which is carried by an arm or bracket
attached to the sliding head or stand, and upon this scale any movement of the
pointer is clearly seen. If a diagram or record of the surface is intended to be
kept the pointer may be caused to mark its movement upon a travelling paper
carried by a rotating drum or like device.
The position of the end or foot of the slide or piston, may be adjusted by means
of a curved foot plate affixed thereto by a screw or other suitable method. The
curved plate may be affixed either to the top or bottom of the piston or slide.
Other means may be adopted for adjusting or regulating the length of the piston or
slide, such as a screw and lock nut at either end of it, or a bush into which it may
be secured by a screw or set screw, or it may be a fixed length and the position of
the pointer adjustable. Further the lever may be made double compound, with the
long arm of the first connected to, or acting against the short arm of the second, in
order to magnify the movement of the piston or slide to a greater extent.
If required to test a vertical surface, the double slide may be provided with a
pring which will rest against the pointer, and hold the foot to the surface.
For testing the surfaces of carding engine flats, the end brackets will be arranged
o rest upon the working surfaces, and for the cylinders and doffers, the brackets
vill rest upon the edges, free of the card clothing, or may be made adjustable and
ixed to the bend. If desired, arrangements may be made for accurately adjusting
he end brackets to the same height or level.
Dated this 13th day of March 1890.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Testing the Accuracy or Truth of
Flat, Cylindrical, or other Surfaces, applicable for Testing the
Wire Surfaces of Carding Engines.
We, SAMUEL HERBERT BROOKS, of West Gorton, Manchester, in the County
of Lancaster, Machinist, and JAMES EDGE, of Gorton, in the said County, Mill
Manager, 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 is primarily designed with the object of providing a portable
apparatus for testing the accuracy or truth of the various surfaces in carding
engines comprised of the points of the wire clothing after such have been ground
and without removing same from their working position though it may also be
applied or adapted to the testing of other surfaces.
It consists essentially of a double slide or slile and piston with a movement in
two directions one at a right angle to the other which slide longitudinally over a
fixed bed carrying with them an index and pointer, the pointer indicating on a
scale the movement of the piston or second slide, caused by any inequalities of the
surface being tested.
The invention will be fully described with reference to the accompanying
drawings which show the invention as constructed to be applied to the testing
of the surfaces of several objects forming parts of a carding engine.
Fig. 1 is a front elevation of the invention applied to the testing of the flats.
Fig. 2 side elevation of same.
Fig. 3 front elevation of same showing it supported by a different form of
grinding bracket.
Fig. 4 side elevation of Fig. 3.
Fig. 5 front elevation of invention applied to the top of doffing cylinder.
Fig. 6 side elevation of Fig. 5.
Fig. 7 front elevation of invention applied to the side of the main cylinder.
Fig. 8 side elevation of Fig. 7.
Fig. 9 front elevation of invention applied to the top of the main cylinder with
the flats removed.
Fig. 10 side elevation of Fig. 9.
Figs. 11, 12 and 13 modified forms of the invention.
Figs. 14, 15, 16, 17, 18, 19, parts of the invention in detail shown to a larger
scale.
A long bed or slide A is provided to extend across the surface to be tested. The
bed or slide A is formed with a central slot or opening extending from end to end
and is supported at each end by a stud or bracket B or other device by which it
rests upon the surface to be tested or is connected therewith or supported above it.
Upon this bed is placed a double acting slide with a movement in two directions
one part moving in a plane at right angles to the other. The stand or slide C rests
upon the top of the bed B and may be moved to and fro its whole length. The
slide carries the second sliding rod or piston D which is fitted into and passes
through a hole or slot therein the hole or slot being cut perpendicular to the sliding
surface of the slide C. The end of the sliding rod D extending through the
slide C rests upon or against the surface to be tested and rests against or is
connected to the short end of a lever E.
The lever E is pivoted to the slide (preferably by movable adjustable pivots e'.
Attached also to the slide is an arm or bracket F to which is affixed a scale or
index dial. The lever E is preferably bent or curved as shown and its end is
formed into or to its end is attached a pointer e which moves to and fro over the
face of the scale. The sliding rod D is in connection or contact with the short
arm of the lever E and any movement of the sliding rod D up or down moves the

page_text: short arm of the lever and this moves the long arm to a much greater degree, the
movement being indicated on the scale or index plate by the pointer e.
As the slide E is moved backwards and forwards on the bed A the end d of the
sliding rod D rests upon or presses against the surface to be tested and any slight
irregularity in the surface at any point causes the sliding rod D to move up or
down thereby moving the lever E whose movements are indicated on the scale or
index dial f
Referring to Figs. 1 and 2. The apparatus is shown applied to the testing of
the surfaces of the revolving flats of carding engines. The bed A is supported on
the stud B which is bolted to it. The stud B fits into a vertical socket in the
bracket G, and at its lower end it is fitted with a projecting piece H, against the
underside of which the working surface of the flat bears as it passes over
the pivoted lever J. The bracket G is bolted to the bracket G¹ which is provided
to support the sockets of the ordinary grinding roller the bracket G being bolted
to the bend I.
Referring to Figs. 3 and 4. The apparatus is also shown as applied to the
testing of the revolving flats K and differs only from the arrangement shown in
Figs. 1 and 2 in that the bracket G by which it is supported is itself the grinding
bracket for one form of grinding apparatus.
Referring to Figs. 5 and 6. The apparatus is shown applied to the top of a
cylinder. The bed A is bolted to the bracket B which rests loosely upon the edge
of the cylinder L.
Referring to Figs. 7 and 8. The apparatus is shown applied to the side of the
cylinder and is similar to that shown in Figs. 5 and 6 except that the bracket B is
shown bent or cranked instead of upright. This form of apparatus might also be
applied to vertical surfaces.
Referring to Figs. 9 and 10. The apparatus is shown applied to testing the
main cylinder of the carding engine the bracket B being bolted to the bracket G
which is bolted to the bend I.
In Fig. 11 the point is shown connected to the long arm of the lever E by a
screw whereby the position of the lever may be adjusted and in Fig. 12 the
lever is carried by the arm F and the scale or index dial is mounted on the slide C.
In Fig. 13 a spring E' is shown screwed to the slide C and passing under the arm E
to adapt it for testing vertical surfaces.
The lower end or foot d of the sliding rod D is of any convenient form to offer
but little resistance in passing over the surface to be tested. A convenient form is
a curved plate as shown in detail in Figs. 14 and 15. And the top end may be
formed with an eye or slot d to receive the end of the lever E as in Figs. 1 to 8
and 14 or have a curved end as in Figs. 13, 15, 17.
The length of the sliding rod D may be adjusted by altering the position of
either its head or foot in either of the ways shown in detail in Figs. 14 to 19.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. An apparatus for testing the accuracy of flat cylindrical or other surfaces
having a double slide with a movement in two directions one at a right angle to the
other a stationary bed which supports the slide and a pointer which indicates on a
scale or dial the secondary movement of the slide substantially as described.
2. In apparatus for testing the accuracy of flat, cylindrical, or other surfaces the
combination of a stationary bed supported on studs or brackets, a double slide
sliding thereon longitudinally carrying a sliding rod which rests on the surface to
be tested, a pivoted lever in connection with the sliding rod, and a pointer and
dial connected therewith upon which the movements of the sliding rod are indicated
substantially as described.
3. An apparatus for testing the accuracy of the surfaces of the flats and
cylinders of carding-engines constructed and arranged substantially as described

page_text: with reference to Figs. 1 and 2; Figs. 3 and 4; Figs. 5 and 6; Figs. 7 and 8 or
Figs. 9 and 10.
Dated him 10th d. of T
1000
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.