A New or Improved Combined Self-acting Machine for Boring and Roughing Bobbins or Spools and other analogous articles.
Year: 1891

page_text: Date of Application, 16th Sept., 1891
Complete Specification Left, 16th June, 1892-Accepted, 16th July, 1892
PROVISIONAL SPECIFICATION.
A New or Improved Combined Self-acting Machine for Boring and
Roughing Bobbins or Spools and other analogous articles.
1, ARTHUR GREG of the firm of James Chadwick and Brother of Eagley
Mills near Bolton in the County of Lancaster, Thread Manufacturers, and of
Staveley near Kendal in the County of Westmoreland, Bobbin Manufacturers, do
hereby declare the nature of my said invention to be as follows :-
This invention relates to a new or improved combined self-acting machine for
boring and roughing bobbins or spools and other analogous articles and is designed
to perform the said operations on two or more bobbin or spool blocks or other
pieces of wood at once, by which the old and expensive manner of boring and
roughing by separate machines will be dispensed with. This I effect by providing
a suitable frame on which I mount a headstock with boring and roughing spindles;
the former being slid backwards and forwards by means of levers operated by a
scroll or scrolls from the driving shaft. The said spindles are provided with fly-
wheels and pulleys to drive the same by belts or their equivalents from any suitable
or convenient gearing. The spindles can operate on one or both ends of the head-
stock by which the machine can be either single or double. Each boring spindle is
fitted with a boring bit which operates on round or square blocks of wood held in
adjustable grippers to bore the holes through the same. After the wood blocks
have been bored, and the tools have receded the adjustable grippers are oscillated
mechanically to place the bored blocks opposite the roughing centres, by which the
same are gripped endwise, the ends penetrating the bored holes to hold the same
while roughing is being performed. The oscillating grippers are operated by carn
and lever arrangements from the driving shaft. Cams are provided where necessary
to give intermittent motions. Immediately a bored block has been secured between
the boring bar centres the grippers open and oscillate backwards to receive another
block to be bored. The wood blocks are fed by a shoot or shoots provided with
means to regulate their admission to the grippers, and to hold the same in position
when the grippers are making their oscillating movements. The sliding portions of
the boring centres are mounted in headstocks, and are operated by levers and scrolls
from the driving shaft. Means are provided in these sliding arrangements to com-
pensate for the uneven lengths of the blocks of wood to be operated upon. Each
roughing tool is held in a sliding headstock mounted in any convenient manner on
the side of the machine, and is operated to and fro by lever and eccentric arrange-
ments from the driving shaft. Mechanism is provided for releasing the roughed
blocks from the centre, after which they are carried away down shoots or troughs.
Dated the 15th September 1891.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
:
A New or Improved Combined Self-acting Machine for Boring and
Roughing Bobbins or Spools and other analogous articles.
I, ARTHUR GREG of the firm of James Chadwick and Brother of Eagley
Mills near Bolton in the County of Lancaster, Thread Manufacturers, and of
Staveley near Kendal in the County of Westmoreland, Bobbin Manufacturers, do
hereby declare the nature of my said invention and in what manner the same is
Paine 1

page_text: and 14 mounted on the rods 15 and 16 respectively. The rod 15 is mounted in the
oscillating frame 17 pivoted to the frame 1 by the pin or centre 18. The frame 17
is fitted with the bearing 19 in which is mounted the rod 16 carrying the upper
gripper 14 by means of the arm 20. The rods 15 and 16 are coupled together by
the double lever 21 pivoted to the lower end of the oscillating frame 17, the links 22,
and arms 23. By thus coupling the rods 15 and 16 together the grippers are
caused to open and close simultaneously by which they will adjust themselves to
varying sizes of blocks to be bored and roughed, also to cause the same to be self
centering. The rod 16 is provided at its lower end with the bowl or roller 24 fitting
into the slotted lever 25 secured to the shaft or centre 26 mounted in bearings in
the fixings 27 on the front side of the machine. To the shaft or centre 26 is fitted
the weighted lever 28 carrying the bowl or centre 29. The latter sits on the
cam 30 by which the grippers 13 and 14 are opened and closed.
same.
After each block 12 has been secured between the grippers 13 and 14 the
boring spindle 5 with the boring tool 31 advances and bores a hole through the
The spindle 5 is mounted in bearing in the headstock 2 and is provided
with the armi 32 secured to the rod 33 mounted loosely in the headstock 2. To the
rod 33 is secured the pin 34 fitting in the upper end of the slotted lever 35 pivoted
to the fixing 36 on the frame 1. The lower end of the lever 35 is fitted with the
bowl or centre 37 operated by the scroll 38 on the shaft 7, by which a to and fro
motion is imparted to the boring spindle 5 carrying the boring bits or tools 31. The
spindle 5 is provided with the pulley 39 by which it is rotated by means of a belt
from a pulley sufficiently wide to allow of the sliding movements of the same; the
said driving pulley being fixed in any convenient manner overhead. Immediately
the block 12 between the grippers 13 and 14 has been bored and the boring tool 31
has receded therefrom the frame 17 is oscillated to place the bored block between the
centres 3 and 4. The frame 17 is oscillated by means of the adjustable rod 40, one
end of which is pivoted thereto, and the other end to the lever 41 on the rocking
shaft or centre 42 mounted in bearings in the fixings 27 on the front of the machine.
To the lever 41 is attached the arm or lever 43 carrying the bowl or roller 44,
which operates in the slotted cam 45 on the under driving shaft 7. When the bowl
or centre 44 is in the circular portion of the slot 45, as shown in Fig. 8, the oscillating
frame 17 is in the position shown in Fig. 6. As soon as the cam 45 rotates to place
the bowl or roller, 44 in the straight portion of the slot the lever 41 is operated in
the direction indicated by the arrow, which oscillates the frame 17 and places the
bored block between the grippers 13 and 14 in the centre line of the spindles 3
and 4.
When in this position the slide 4 advances and secures it-the bored block-
between the saw toothed end of the rotating spindle 3 and the end of the slide 4;
the bored hole fitting on the projections 46. Immediately the bored block has been
secured between the spindles 3 and 4 the raised portion 47 of the cam 30 raises the
weighted lever 28, and operates the shaft 26, by which the slotted lever 25 lifts the
rod 16 carrying the gripper 14 and depresses the rod 15 carrying the gripper 13.
Immediately the grippers 13 and 14 have opened and released the bored block they
are oscillated backwards as in Fig. 6 by the bowl or roller 44 entering the circular
slot of the cam 45. As the rod 16 is receding its upper end strikes the arm, or
lever 48 carrying the finger 49 which sits on the next block to be admitted to the
grippers. As soon as the rod 16 strikes the arm or lever 48 the finger 49 is lifted
to allow its arrested block to slide between the grippers 13 and 14 when in the act
of closing by the action of the cam 30. During the operation of closing the
grippers 13 and 14 the arm or lever 48 is released which allows the finger 49 to
drop on the next blank block to be admitted to the grippers, and so on as they are
fed into the shoot 10. The arm or lever 48 is pivoted to the support 50 carrying
the shoot 10 from the frame 1 of the machine. During the latter operation the
bored block placed between the centres on the spindles 3 and 4 is roughed externally
by the roughing tool or blade 51 mounted on the sliding frame 6, which is operated
to and fro by the links 52, lever 53, eccentric 54, and rod 55 from the shaft 7.

page_text: に
The upper part of the sliding frame 6 is mounted loosely in the lower V. portion
and is held against the stop 56 by the chains 57 and weights 58; the chains 57
passing over the pulleys 59. This arrangement is provided to allow of the upper
portion of the frame 6 with the roughing tool 51 yielding in case a bored block is
not correctly seated or fixed between the ends of the spindles 3 and 4. The
spindle 3 is mounted in bearings in the headstock 2 and is fitted with the pulley 39×
driven by a belt from a pulley disposed in any convenient position above the
machine. The slide 4 is mounted in the headstock 60, and is operated to and fro
by the lever 61 pivoted to the frame 1 by the pin 62. The lower end of the
lever 61 is fitted with the bowl or roller 63 operating in the slot 64 in the scroll 65
on the shaft 7. The slide 4 is kept up to its work by the chains 66 and weights 67
secured to the centre 68. The chains 66 pass over the pulleys 69 pivoted to each
side of the headstock 60. When roughing has been performed and the roughing
tool or blade 51 and slide 4 are receding the bored and roughed block is forced
from the end of the spindle 3and the projection by the finger 70 on the
rod 71 mounted in the headstock.2ay On the rod 71 is fixed the fork 72 between
which operates the lever 73 pivoted to the frame 1. The lower end of
the lever 73 is provided with the bowl or roller 74 operating in the slot 75
in the scroll 38. The slot 75 may be constructed to operate both ways in case
of a double machine as shown in Fig. 1. After the finger 70 has pushed off
the finished block, the latter rolls away down the shoot 11 to a basket or other
receptacle. The shoot 11 is secured to the sliding frame 6 carrying the roughing
tool so as to always be in the correct position for conveying the finished work away.
In case a finished block adheres to the end of the slide 4 when the latter is receding
it is forced therefrom by coming in contact with the fixed stop 77 secured to head-
stock 60 by the arm 78, from whence it will fall into the shoot 11. The shaft 7 is
I supported in bearings carried by the standards 79; and is provided with the fast
and loose pulleys 8 and 9 driven by a belt from a pulley in any convenient
position.
Although I have shown a double machine in the annexed drawings I would have
it understood that the same may be made single if desired by terminating at one
end of the headstock 2.
•
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The general arrangements, constructions, and combinations of parts composing
the new or improved combined self-acting machine for boring and roughing bobbins
or spools and other analogous articles, as hereinbefore described and as illustrated
in the annexed drawings.
2. In a self-acting machine for boring and roughing bobbins or spools and other
analogous articles the use of the oscillating grippers and the mechanism for
operating same, substantially as described.
3. In a self-acting machine for boring and roughing bobbins or spools and other
analogous articles the use of apparatus for releasing or pushing the bored and
roughed bobbin or spool blocks and other analogous articles from the roughing
centres, substantially as described.
Dated the 6th June 1892
EDMUND CHADWICK,
Agent.