Improvements in Machinery or Apparatus for Polishing the Flanges or Ends of Bobbins or Spools.
Year: 1893

page_text: Date of Application, 16th Jan., 1893
Complete Specification Left, 14th Oct., 1893-Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for Polishing the Flanges
or Ends of Bobbins or Spools.
We WILLIAM MCCROSSAN of No. 11 Caledonia Street, Mechanic and ROBERT
MCCRACKEN of 25 Cotton Street Mechanic and Joux PINKERTON KERR of
Kerr & Co. Ld. Thread Manufacturers all of Paisley in the County of Renfrew
do hereby declare the nature of this invention to be as follows:-
Our improvements has reference to machines for polishing by friction the ends
of bobbins or spools and consists in making all the movements of the machinery
self acting whereby the worker can attend to a machine for polishing several
bobbins at a time instead of attending to and part working a machine for polishing
only one bobbin at a time, and also for making parts of the machine more adjust-
able and durable..
To accomplish this we place the bobbins to be polished on a receptical or shelf
at the top of the machine from whence they are placed or fed by hand with a trough
or slide placed upright at an angle so that the bobbins fall one by one into, or on,
the top of an upright slide which is raised or moved up to the exact position to
admit of the spindle on which the bobbin revolves whilst 'polishing being pressed
or pushed with the bobbin, the upright slide then drops and receives another spool
to be raised in its turn to be put on the spindle as soon as the other is pushed off,
and so on.
The automatic feeding and supplying each polishing spindle with spools
is worked by cams, eccentrics or tappets revolving on a shaft. The spool is fixed
on the revolving spindle in two centres and is pressed on to the spindle and pushed
off when polished by a horizontal slide worked by a cam or tappet on the same
shaft as the one for working the feed and mentioned above.
The hardened steel pieces for polishing are fastened to a finger moving on a stud
and worked through a connecting rod from a finger or lever fixed on a rocking or
oscillating shaft which is made to rock by a tappet, cam or eccentric, on the above
mentioned cam shaft, the fingers containing the steel polishing pieces are thus
brought to and pressed on the flanges of the spool which is revolving at a high
speed fast on the spindle and thus gives the necessary polish. The polishing pieces
are then raised by the rocking motion of the shaft. The horizontal slide worked
by a tappet then pushes the bobbin off the revolving spindle which drops into a
box below and so the process goes on, all worked automatically.
Any one of the oscillating fingers containing the polishing pieces can be stopped
oscillating whilst the machine is in motion by simply lifting the end of the con-
necting rod (which has an open slot in it) from the stud on the rocking shaft
finger and by letting the rod fall in the slot it is brought into motion again:
The polishing pieces may be attached to a slide and made to move to and fro
under or over the flange of the bobbin, and so adjusted as to press on and polish
the flanges in passing.
The polishing pieces are made of circular form so that when the polishing parts
wear, by simply turning them round a little on their centres a new part is brought
into operation thus saving time by not requiring to take them off when they require
adjusting.
Dad thin 14th day of Tan 1902

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus for Polishing the Flanges
or Ends of Bobbins or Spools.
We,
WILLIAM MCCROSSAN, of 11 Caledonia Street, Mechanic, and ROBERT
MCCRACKEN, of 25 Cotton Street, Mechanic, and JOHN PINKERTON KERR, of
Kerr & Co. Limited, Thread Manufacturers, all of Paisley, in the County of
Renfrew, 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, that is to say :-
Our said invention has for its object to arrange improved self acting machinery
for polishing the flanges or ends of bobbins or spools by friction, the improvements
being such that one worker can attend to a machine for polishing several bobbins
at a time. Parts of the machine for acting on a bobbin are repeated twice, thrice,
or oftener in the same machine, and the various parts are made easily adjustable.
An example of our improved machines as made with parts for operating on
three bobbins at a time is represented on two accompanying sheets of explanatory
drawings which are hereinafter referred to in particularly describing the
mechanism.
Figures, 1, 2, and, 3, on Sheet, 1, of the drawings are, respectively a plan, a
front elevation, and an end elevation of the machine.
Figure, 4, on Sheet, 2, is an enlarged transverse vertical section of some parts;
Figures, 5, 6, and, 7, are respectively a plan, a sectional end' view, and a front
elevation of certain parts also enlarged;
Figures, 8, 9, and, 10, are enlarged face views of certain cams; and
Figures, 11, and 12, are a side view and plan of two of the polishing
instruments.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
transverse
The framing of the machine consists mainly of
vertical
frames, A1, A2, A 3, connected by longitudinal horizontal frame bars or
rails, B1, B2, B3, B4, B5, B6, B7; and on and between two of the vertical
frames, A2, A3, are carried a portion of the driving gear including a first-motion
shaft, C, which has on it fast and loose pulleys, C 1, for a driving belt, and serves
principally for actuating various cams. On a longitudinal shaft, D, carried by the
vertical frames, A 1, A 2, are fast and loose pulleys, D 1, for a belt, these pulleys
being of smaller size and serving for giving the polishing rotating motion to the
bobbins. The first-motion shaft, C, by a pinion, C2, and spurwheel, C 3, drives a
second-motion shaft, C4, which has on it near one end cams, E, F, and at the other
end a bevil wheel, G, gearing with a bevil wheel, G 1, on a transverse shaft, G 2,
which has on it a cam, G 3, the several cams acting through levers (having anti-
friction roller pins working in grooves of the cams) on various moving parts as
hereinafter described, and being shown in face view and as enlarged in Figures, 8, 9,
and 10, on Sheet, 2, of the drawings.
The bobbins to be polished are placed in an open receptacle, H, shown only in
Figures, 3, and, 4, from which they are taken by hand and put into inclined shoots
or guide channels, H 1, of which there is one for each set of the polishing mechanism
and which will each contain several bobbins at a time. From the bottom of each
shoot, H 1, one bobbin at a time drops into a rectangular seat, H2, upon an
arın, H 3, adjustably jointed to a lever, H 4, the arm, H 3, being supported and
guided by a small standard, H 5, the upper end of which is notched to receive the,
arm, and which is fixed to the rail, B2. The several levers, H 4, are fixed on a
longitudinal rocking shaft, E 1, which has fast on it a lever, E 2, armed with a pin
which is acted on by the groove of the cam, E. At the commencement of each

page_text: operation on a bobbin, the cam, E, causes the arm, H 3, to move a bobbin from the
bottom of the shoot, H1, into position for being taken hold of by parts which make
it rotate, these parts consisting, for each bobbin, of a rotating spindle, J, formed or
fitted with a cornered centre to enter and engage in one end of the bore of the
bobbin, a follower spindle, J 1, with a centre to enter the other end of the bore,
and a bracket ring, J 2, encircling the rotating spindle to doff the bobbin after
being polished. A set of these parts is shown separately in Figures, 5, 6, and, 7,
on Sheet, 2, of the drawings. The several follower spindles, J 1, are each formed
on or fixed in a small headstock, J 3, fitted to slide on a pair of horizontal guide
rods, J4, and the headstocks, J3, are connected each by a link, J 5, to a small
block, J 6, adjustably fixed on a longitudinal rod, J', which is connected to a bell-
crank lever, G4, acted on by the cam, G 3. Each doffing bracket ring, J 2, is
connected to the follower headstock, J3, by a narrow plate, J 8. Each rotating
spindle, J, is held in two bearings, one in a small bracket, K, fixed on the rail, B 2,
and the other in larger bracket, K 1, in the same piece with the bracket, K; and
between the brackets the spindle has fixed on it a pinion, K 2, gearing with a
spur wheel, K 3, fast on the longitudinal shaft, D, which shaft has bearings in the
several brackets, K 1, and is driven by means of pulleys, D1, as hereinbefore
described.
The parts of the bobbins which are polished are the outer faces of the end disks
or flanges and the rounded edges of those disks; and for each end disk of each
bobbin there are two polishing or burnishing instruments, L, M, such as are shown
in Figures, 11, and, 12, on Sheet, 2, of the drawings, these instruments being made
of iron or steel and operating by the frictional contact of their ends on the rotating
bobbin. The instrument, L, for the disk edge is fitted with a separate acting
piece, L1, of a pulley like form secured by a screw and adjustable in a fresh
position when one part has become worn. The four instruments, L, M, for one
bobbin (N, Figure 12) are adjustably fixed by means of screws, P, in a holder, P 1,
which is itself fixed to a bar, P 2, of rectangular section but made with end journals
to allow of its rocking in bearings in the brackets, K 1. Each rocking bar, P 2,
has fixed to it a downwardly extending arm, P 3, to which is jointed a rod, P 4,
adjustably connected to a lever, P 5, on a rocking shaft, P 6, carried in bearings at
the back parts of the brackets, K 1. The rocking shaft, P 6, has on it (behind the
lever, P3, seen in Figure, 4) a lever, F 3, connected by a rod, F 2, to a bellcrank
lever, F 1, which is acted on by the groove of the cam, F, hereinbefore
referred to.
The various cams are constructed and are positioned on their shafts, so as to
effect their several actions at suitable successive times; each series of operations
comprising in the case of each set of mechanism, the transferring of the bobbin
from the bottom of the shoot, H 1, into position for the fixing of the bobbin on the
rotating spindle, the turning down of the polishing instruments into operating
position, the turning up again of the polishing instruments, and finally the doffing
of the bobbin from the rotating spindle. The finished bobbins find their way through
guide shoots, Q, indicated by dotted lines in Figure, 4, into a receptacle, Q 1.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. The combination of parts constituting as a whole the improved machinery for
polishing bobbins or spools, substantially as herein before described and shown in
the accompanying drawings.
2. The combination of the shaft (D) placed longitudinally with separate short
spindles driven therefrom by spur gearing and arranged to impart rotation to
separate bobbins or spools substantially as hereinbefore described.
3. The combination of appliances for receiving and placing each bobbin in
position, for putting and holding it on the rotating spindle and for doffing it
substantially as hereinbefore described.

page_text: 4. The combination of parts for adjustably holding the polishing instruments and
putting them into and out of action substantially as hereinbefore described.
Dated this Thirteenth day of October 1893.
+
EDMUND HUNT,
Applicants' Agent.