Improvements in Drop Box Motions for Looms for Weaving,
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Drop Box Motions for Looms for Weaving,
I, ERNEST HEYWORTH, of 77, Middleton Road, Hopwood, Heywood, in the County
of Lancaster, Fitter, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in diop box motions for looms for weav-
ing, the object being to provide means whereby one or more of the lags of the
pattern chain can be brought in repeat operation by reversing the rotation of and
longitudinally displacing the pattern chain banel and tous the length of the
pattern cham greatly reduced in cases where a constant repetition of pattern is
required and also means whereby the shuttle boxes are lifted more smoothly and
reliably, than heretofore has been the case by being balanced and positive in
action.
To this end I employ in connection with the ordinary pattern chain an "auxillary
pattern chain" hereinafter termed the "repeating pattein chain" the former being
composed of laga, formed with rows of holes adapted to receive pegs, which rows of
Legs represent the pattern to be woven and are so arranged that the holes of one
1ow are positioned between those of the other 10w, whilst the said "repeating
chain" I form of lags with pegs or preferably of cards with and without holes.
The said "pattern chains" are each cairied and rotated by a bariel arranged at the
sides of the stud wheel which gears into the pinion on the crank shaft of the loom,
in the following manner,
The "pattern chain barrel" is formed at one end with a groove in which engages
the forked end of a lever suitably suspended This lever is adapted to displace the
pattern barrel" and "chain" longitudinally, so as to bing the 10ws of pegs or
holes alternately into the path of levers hereinafter described To the said "pattern
barrel" 18 secured a star wheel operated by a stud on an intermediate star wheel
carrying a spur pinion in gear with another spur pinion secured to a third star
wheel. On the other side of the last named star wheel is secured a bevel pinion
gearing into a bevel wheel, to the shaft of which a cam is fixed, adapted to actuate
the lever aforesaid which engages the
pattern hairel At one side upon the
boss of the said stud wheel I employ a pulley furnished at each side with a stud
which pulley serves to hold the last named two star wheels in position and to
partially turn same when required, that is alternately, by moving the said pulley
clear of one of the said star wheels and thereby causing one of the said studs to
engage the other star wheel
To one end of the "repeating chain barrel" is also secured a star wheel, which
when at rest bears against the periphery of the said pulley and when the latter
is slid out of line therewith is engaged by one of the studs on the pulley and

page_text: thereby partially rotated, so as to cause the "repeating chain" to be moved one
lag or card as hereinafter described
The back end of the boss of the said pulley is formed with a groove in which
engages the forked end of a lever the shaft of which carries an arm having a
tooth adapted to act upon the lags or cards of the said "repeating chain"
4.
Bo that
cach time the said tooth drops into one of the said holes or onto one of the said
pegs the pattern chain" will then be either reversed or allowed to rotate in the
same direction in accordance with the pattern of the lag or card then in operation,
e having holes or pegs or being blank and the said pulley is longitudinally dis-
placed and one of the studs thereon caused to engage and turn one of the said
pinion star wheels
The sido of the said pulley adjacent to the said stud wheel is formed with a
segmental aim adapted to slide in an opening formed in the said stud wheel and
at the same time cause the said pulley to rotate with the said stud wheel, the
end of which aim is formed with a cam face In connection with the latter a lever
suitably suspended 18 arranged which, through the action of one of the pegs in the
pattern chain" brought into the path of the said cam faced arm, causes the said
pulley to be alid clear of the said pinion star wheels and at the same time lift the
aforesaid toothed lever clear of the lags or cards of the "repeating chain" and also
rotate the "repeating chain barrel by causing one of the studs on the said
pulley to engage the star wheel on the "repeating barrel."
"
"
In front of the said cam face are secured upon the boss of the said stud wheel
a suitable distance apart from each other, two discs a portion of each of which forms
a laterally movable segment The said segments are retained in the respective
peripheries by springs and removed therefrom into action by levers suitably
fulerumed and actuated by two other levers suitably suspended and operated by the
pegs on the "pattern chain The said discs below each periphery segment are each
formed with a number of teeth which when uncovered by the said periphery
segments are timed to come respectively into gear with wheels having each at
diametrically opposite points two segmental gaps fitting against the periphery of
the respective disc and adapted to turn loosely on the stud of the " repeating
barrel."
+
In connection with each of the aid gaps, a projection 18 formed on the respective
wheel, which when the said discs revolve, are caught by the said segmental peri-
pheries and brought into gear with the teeth on the said discs and turned thereby.
At the inner side of each of the said gap wheels is formed or secured a cam
cariving each a od one of which 18 connected to a lever at the bottom of the
frame and the other to a rocking or intermediate lever fulcramed to the aforesaid
lever and connected with the rod of the drop box.
In cases where one cam is adapted to move around the other, one of the said
cams is formed part of one of the said gap wheels and the other gap wheel formed
with a disc having a slot adapted to engage a pin on the said outer cam.
A modification of my invention consists in mounting the said "pattern barrel
with its chain, the three first named star wheel respective bevel wheels and spur
pinions, cam and lever in a separate frame or bracket adapted to swing to and
fro the levers which are operated by the pegs on the pattern chain lags and in
dispensing with the aforesaid pulley and rotating the second and third named
star wheel by a cominon pawl actuated by a cam secured upon the boss of the said
etud wheel, the object being to provide a blank space to bring into operation
any of the eccentrics that lift the boxes through the same levers which operate the
aforesaid segmental peripheries
Dated this ẞth dox of Trinn 1800
F. BOSSHARDT & Co.,
Agents to Applicant.

page_text: I, ERNEST HEYWORTH, of 77, Middleton Road, Hopwood, Heywood, in the County
of Lancaster, Fitter, 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 improvements in drop box motions for looms for wear-
ing, the objeot being to provide means whereby one or more of the lags of the
pattern chain can be brought in repeat operation by reveising the rotation of and
fongitudinally displacing the pattern chain barrel and thus the length of the
pattern chain greatly reduced in cases where a constant repetition of pattern 18
required and also means whereby the shuttle boxes are lifted more smoothly and
reliably, than heretofore has been the case by being balanced and positive in
action.
And in order that my invention may be more fully understood I have caused
to be appended hereunto two sheets of thawings marked with letters of reference
indicating like parts in the various figures
Figs 1, 4 & 5, Sheet I, are sectional side views at lines A-A, B--B, C-C of
Fig. 2, Fig. 2 is a plan, Fig 3 an end view of Fig 1, and Fig 6 a longitudinal
section at line D-D of Fig 2 of my improved diop box motion with repeating
chain barrel Fig 7 is a sectional side elevation and Fig 8 a plan of a modification
thereof. Fig 7* is a side elevation.
Figs 9 & 10, Sheet II, respectively show a portion of my invention as used in
connection with an ordinary diop box motion without repeating chain bairel.
Fig 11 a side view at a reduced scale of my improved connection between the drop
box motion and the shuttle box of the loom
4
"
In carrying out my invention and referring to Figs 1, 2, 3, 4, 5 & 6, Sheet I, I
employ in connection with the ordinary pattern cham a an auxillary pattern
chain b hereinafter termed the repeating pattern chain" the former being
composed of laga, having rows of holes adapted to receive pegs, which rows of pegs
represent the pattern to be woven and are so arranged that the holes of one ow
are positioned between those of the other row, see Fig 3, whilst the said "repeat-
ing chain" I form of lags with pegs or preferably of cards with and without holes,
as shown in the drawings The said "chains" are each carried and rotated by a
barrel a¹ & I respectively, arranged at the sides of the stud wheel c which gears
into the pinion c¹ on the ciank shaft, in the following manner
,
-
The "pattein chain barrel" a¹ is formed at one end with a groove a³ in which
engages the end of a lever d suspended from the frame e of the apparatus This
lever is adapted to displace the "pattern bairel" a' and "chain thercon longi-
tudinally, so as to bring the 10ws of pege or holes into the path of or
opposite the levers 6, 63, es, see Fig 2, hereinafter described To
the "pattern barrel" a¹ is secured a star wheel f operated by a stud fl on an
intermediate star wheel, carrying a spur pinion fin gear with another spur
pinion secured to a thuid star wheel f³ On the other side of the last named star
wheel is secured a bevel pinion f gearing into a bevel wheel f7, to the shaft f³ of
which is fixed a cam adapted to actuate the lever d which engages the "pattern
barrel "
This cam is formed with steps or dwells the number of which corresponds
with the number of holes of each now in the lag of the pattern chain a
At one side, upon the boss of the stud wheel c, I employ a pulley g furnished at
each side with a stud g', g¹, which pulley serves to hold the last named two star

page_text: wheels, fin position and to partially turn same when required, that is alter-
nately, by moving the pulley 9 clear of one of the said star wheels, say f³, and
thereby causing one of the studs gl, gl to engage the other star wheel fo.
37
To one end of the "repeating chain barrel is also secured a star wheel b³,
which when at zest, beais against the periphery of the pulley g and when the
latter is slid out of line therewith, is engaged by one of the studs gl, g¹ on the
pulley and thereby partially rotated, so as to cause the repeating chain" b¹ to
be moved one lag or card as hereinafter described
"
The back end of the boss of the pulley 9 is engaged by a lever h, see
Figs 2, 4, 5 & 6, secured to another lever which carries a tooth h* adapted to
act upon the lags on cards of the repeating chain 6 in such a manner, that each
time when the said tooth drops into a hole or upon a plain part, or a part opposite
in character to that previously presented by the card, the pattern chain will bo
longitudinally and iota reversed or if a hole or plain part of the same character
18 repeated, allowed to longitudinally move and 1otate m the same direction, by the
pulley being longitudinally displaced by the lever e³ hereinafter referred to and
one of its studs g', 91 caused to engage and turn one of the star wheels f, fo
The side of the pulley 9 adjacent to the stud wheel c, is formed with a segmental
arm g³ adapted to slide in an opening c³ formed in the stud wheel e and at the same
time cause the pulley g to 1otate with the stud wheel, the end of which aim, is
formed with a cam face g³, see Figs 2 & 4 From the frame e 19 suitably suspended
the level which when retained in the path of the cam face g' by one of the pegs
in the "pattern chain" a', causes the pullev q to be slid clear of the bevel pinion
stai wheel and at the same time lift the aforesaid toothed lever h¹ clear of the
lags or cards of the "repeating chain" and also rotate the “ repeating chain
barrel" 6, by causing one of the studs g' g' on the pulley g to engage the star
wheel 63 on the "repeating barrel" bl
Opposite the cam face y' are secured upon the boss of the stud wheel c, a suitable
distance apart from each other, two discs 1, 2, a portion of each of which, forms
a laterally movable segment 1', ' The said segments are carried by the leveis k, k
fulerumed to the discs 1, 2 and retained in the respective peripheries, by springs
and removed therefrom into action by two other levels o, e, suspended from the
fiamce of the apparatus acting upon cam faces ¹ formed on the leveis k, k, and
controlled by the pegs on the pattern chain" The discs, below the periphery
segments are each formed with a number of teeth 1, which when uncovered by
the said periphery segments, are timed to come respectively into gear with
wheels, having each at diametrically opposite points two segmental gaps 13, 13
fitting against the periphery of the discs 2, and adapted to turn loosely on the
stud m of the "repeating barrel" b
In connection with each of the gaps 73, a projection is formed on the respective
wheel, which when the discs 1, revolve, are caught by the segmental peri-
pheries, and the gap wheels ', ' brought into gear with the teeth 1, 1 on the
said discs and turned thereby
In order to clear the levers d, e, e, from the pegs in the pattern chain a when
the latter 18 rotated or transversely displaced, a lever n having a pin n¹ reaching
underneath the said levers, is adapted to be raised automatically by a cam n² on
the stud wheel c, see Fig 4.
In order to prevent the star wheels f, f, unduly changing their position I
employ a stop lever o pressed against the star wheels f, by a spring o¹ and
automatically lifted off the same when due to move, by a cam o on the stud
wheel c, see Fig 2
In lieu of forming the pulley 9 with a segmental arm to pass through the stud
wheel and having a cam face at its free end, I dispense with such segmental aim
and cam face and furnish the stud wheel c with a pin passing through a hole
formed in the pulley g, as shown in Figs 7, 7 & 8, whilst the respective cam
face g³ I form on the inner side of the stud wheel c, see Fig 7, so as to act upon
an arm formed on the leverse and upon the end of which is adapted to rest

page_text: the repeating barrel level h¹ which simplifies this part of the motion but in principal
1emains the same
Again, in lieu of forming teeth I, on the discs 1, below their laterally movable
pephely segments, I may for the same on the levers, & at the side of the
segments,, at short distances apart thereof, as shown in Figs. 7 & 8. so that
when the disc segments are moved out of the periphery of the discs, the teeth
thereon are brought against the side of the discs and thus in line with the gap
wheels, which operate in conjunction with the said discs, the projections 3,1
in this case being formed in gaps, of the wheels 1, 1¹
If desirable the arrangement of discs,, movable perphely segments ¹¹,
teeth 1, 7, gap wheels, and levers el, ea may be utilized for an ordinary drop
box motion having no repeating chain' and barel, as shown in Figs 9 & 10,
Sheet II
The shuttle box 1 may lift and lower by two cams arranged side by side or by
two cams one moving on the top of the other
The formei arrangement is shown in Figs 1 & 2, Sheet I, whilst Figs 7 & 8,
Sheet I show the latter arrangement
When employing the cams p, p side by side they are formed on or secured to
the inner sides of the gap wheels 1, 1, see Figs 1 & 2, and each is furnished with
a rod, one of which 9 18 connected to a lever at the bottom of the loom frame,
see Fig. 11, and the other q' to a rocking or intermediate levers fulciumed to
the lever and connected with the iod of the drop box t
In cases where one cam 18 adapted to move around the other, as shown in
Figs 7 & 9, the inner one of the said cams pl, is formed part of one of the gap
wheels and the other gap wheel formed with a disc having a slot l'adapted to
engage a pin on the outer cam p
A further modification of my invention consists in mounting the said " pattern
barrel" with its chain, the three fust named star wheels, respective bevel wheels
and spur pinions, cam and lever in a separate frame or bracket adapted to swing
to and fro the levers e¹, e, e³, which are operated by the pegs on the pattern chain
lags and in dispensing with the pulley and rotating the second and third star
wheels f&f by a common pawl actuated by a cam on the boss of the stud wheel c,
as will be readily understood without illustration, and in which case the forward
movement of the pattern banel ze the pegs on the pattern chain, bring, through
the same levers which actuate the aforesaid segmental pephenies, any or both
of the cams that lift the boxes into action
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1st In and connected with drop box motions for looms for weaving, the employ-
ment of a pattern chain barrel a¹ in combination with a repeating chain barrel b¹,
the said pattern chain barrel being adapted to be rotary reversed and longitudinally
moved to and fro, which reversion and to and fio movement 18 controlled through
suitable connections by the repeating chain, all substantially as set forth
2nd. In a diop box motion, such as specified in the pieceding claim, the lever e³
adapted to raise and lower the repeating barrel lever h¹ in combination with a
pulley 9 longitudinally displaceable on the axis of the stud wheel c and adapted to
alternately retain and rotate suitable stai wheels, which in connection with suitable
gearing, effect the longitudinal to and fro movement and reversion of the pattern
chain baiel and the rotation of the repeating bariel, the movement of the level e³
being controlled by the pegs on the pattern chain, all substantially as set forth.
3rd In a drop box motion, such as specified in the pieceding claims, a stepped
or dwelled cam d intermittently rotated through star wheels and suitable gearing
and actuating a lever d, engaging the pattein chain barrel a¹, whereby the latter
18 moved longitudinally to and fro for the purpose of bringing each time a fresh
peg or blank into action, all substantially as set forth.

page_text: 4th In a drop box motion for looms, the levers e, in combination with
discs, t, evolving with the stud wheel c and having teeth 7, 1, and laterally
movable periphery segments ¹, carried by the lever k, k, formed with cam
face which when the levers e¹, & rest upon the pattern chain pegs, contact there-
with and cause the periphery segments, to be moved sideways so as to allow
the teeth I, on the said discs to engage the gap wheels, actuating the shuttle
box cams, all substantially as set forth
5th In a drop box motion, where two shuttle box cams are arranged at the side
of each other, the employment of a level r carrying at its free end a double armed
lever one end of which is connected by a rod s¹ to the shuttle box t and the other
end by the 1od q' to the camp, whilst the lever by another rod y is connected to
the cam p, all substantially as and for the purpose set forth
F BOSSHARDT & Co,
4, Corporation Street, Manchester
Agents to Applicant