Improvements in the Means of Imparting Lateral Movement to certain Bars Employed in Plain Net and Traverse Warp Machines.
Year: 1887

page_text: Date of Application, 25th Apr., 1887
Complete Left, 25th Jan., 1888
Complete Accepted, 2nd Mar:, 1888
PROVISIONAL SPECIFICATION.
Improvements in the Means of Imparting Lateral Movement to
certain Bars Employed in Plain Net and Traverse Warp
Machines.
We JAMES CARVER of Alfred Street Mills Ashforth Street, Machine Builder, and
JOSEPH NEWTON of Alfred Street Mills, Ashforth Street, Foreman Machinist, both of
the Town and County of the Town of Nottingham do hereby declare the nature of
this invention to be as follows:-
:-
Hitherto in giving lateral movement to certain bars employed in plain net and the
like machines, such as the comb bars guide bars and point bars it has been the usual
practice to employ a separate vertical shaft fixed at one end of the machine driven by
bevil wheels from the main driving shaft and provided with suitably formed cams
levers and the like gear, the correct action of which was not to be depended on
inasmuch that when running at high speeds the vibration of some of the bars was of
such a nature as to prevent the accurate performance of other parts so essential in
this class of machine.
Now the object of our invention is to provide simple and efficient cams levers and
the like easily constructed and applied which shall give the desired lateral motion to
the said bars with certainty and accuracy and to enable us to work at higher speeds
than heretofore.
In carrying our invention into practice, we dispense entirely with the vertical cam
shaft usually employed in this class of machine and use the ordinary horizontal driving
shafts which we provide with suitable cams which transmit through suitable lovers the
desired lateral motion to the various bars.
The main driving shaft which runs lengthwise the machine is provided at each end
of the machine with a spur wheel: these wheels gear in with corresponding wheels
fixed to separate shafts-one at each end of machine-the said shafts being provided
with the usual cams for actuating the various bars.
We provide each of the four spur wheels aforementioned with suitable concentric
projection or projections on the outer faces: these face cams we employ to impart the

page_text: required lateral motion to the guide bars and the point bars by means of levers suitably
fulcrumed, each lever is provided with a truck which runs on its cam, the other end is
attached to or in connection with the bar it is to move laterally. The cam on the faco
of the driven wheel at the left hand end of the machine is employed to move the front
guide bar: the corresponding wheel at the other end is employed for moving the
front point bar, the driving wheel which is on the main shaft at the same end of the
machine, is employed to impart movement to back guide bar, and the driving wheel
at the left hand end of the machine is employed to move laterally the back point bar.
Of course it will be understood that we can vary the above arrangement as may be
desired. The opposite end of each of the above mentioned bars are connected with
springs fixed to the frame of the machine in order to give the return motion to the
said bars.
The front comb bar receives its lateral motion from face cains-one at each end of
machine fixed to the driving shaft; these canis impart motion to levers suitably
fulcrumed to frame of machine: one end of each of the levers is provided with a truck
which runs on its cam, the other ends of the said lovers press to the ends of the comb
bar the left hand ond cam is a counter to the right hand end cam and consequently
as the left hand lever moves to the right the other lover does the same and vice versa,
by this means the comb bar is held quite rigid when moved laterally and vibration
prevented. Thus we are enabled to work a machine constructed with our improve-
ments at a greater speed and with less vibration than heretoforo.
The whole or part of the afore-described improvements can be applied with equal
advantage to bars requiring lateral movement employed in traverse warp and the
like machines.

page_text: improvements in the Means of Imparting Lateral Movement to
certain Bars Employed in Plain Net and Traverse Warp
Machines.
We JAMES CARVER of Alfred Street Mills, Ashforth Street, Machine Builder, and
JOSEPH NEWTON of Alfred Street Mills Ashforth Street, Foreman Machinist, both of
the Town and County of the Town of Nottingham 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 :-
Hitherto in giving lateral movement to certain parts of plain net machines, such as
the comb bar. the guide bars. and the point bars, it has been the usual practice to
employ a separate vertical shaft, fixed at one end of machine-driven by bevil wheels
from the main shaft and provided with suitably formed cams, lovers, and the like gear :
the correct action of which was not to be depended on inasmuch that when running
at high speeds the vibration of some of the bars was of such a nature as to prevent the
accurate performance of other details so essential in this class of machine.
Now the object of our Invention is to provide simple and effecient cam slevers and
the like, easily constructed and applied which shall give the desired lateral motion 10
the aforesaid bars with certainty and accuracy and to enable us to run such machines
at higher speed than heretofore."
In carrying our Invention into practice we dispense entirely with the vertical cam
shaft usually employed in this class of machines, and use the ordinary horizontal cam
shafts, which we provide with other suitable cams, the said cams transmit through
suitable Levers the desired lateral motion to the aforesaid bars. Each of the cams
which we employ in our improvements are in contact with revolving trucks, thereby
reducing friction whereas, it was the usual practice in using the vertical cam shaft to
employ lips or noses, connected with the various bars in contact with the various
cams.
The main driving shaft which runs lengthwise the machine is provided at each end
of the machine with a spur wheel, each of these wheels gear in with corresponding
wheels fixed to separate shafts-one at each end of machine the said shafts are provided
with the usual cams for actuating the various bars, but which cams do not in any way
relate to our improvements.
We provide each of the four spur wheels aforementioned with suitable concentric
projections on the outer faces, these face cams we employ to impart the required
lateral motion to the guide bars and the point bars by means of levers suitably
fulerumed, each lever is provided with a truck which runs on its cam and the other
end of the said levers is attached to or in connection with the har it is to move
laterally. The cam on the face of the driven wheel at the left hand end of machine is

page_text: employed to move the front guide bar, the corresponding wheel at the other end is
employed for shogging the front point bar, while the driving wheel which is on the
main shaft at the same end of machine is employed to impart movement to the back
guide bar, and the driving wheel at the left hand end of machine is employed to move.
laterally the back-point bar of course it will be understood that we can vary the
abovo arrangement as may be desired. The opposite end of each of the above
mentioned that is the ends not connected with the cams-are each connected with
springs one end of such spring being fixed to machine standard in order to give the
return motion to the said bars.
The front comb-bar-the one which is usually shogged-receives its lateral motion
from face cams one at each end of machine-fixed to the ordinary cam shafts: these
cams impart motion to levers suitably fulcrumed to frame of machine: one end of
each-of the-levers is provided with a truck which runs on its cam, each of the other
ends of the said levers press to the ends of the comb bars: The left-hand end cam is
a counter to the right hand end cam, or, where the one has a rise the opposite one is
provided with an indent or corresponding fall, consequently as the right hand end
lever
presses the bar to the left, the lever at the opposite end will move in the same
direction and vice versa, thus the comb bar is always held rigid, during its lateral
movements and when-at rest. Thus we are enabled to work a machine constructed
with our improvements as aforedescribed at a greater speed, with less vibration, and
with greater certainty, of performance than heretofore.
-to-bars
The whole or part of our improvements can be applied with equal advantago t
requiring lateral movement employed in traverse warp and the like machines.
Our Invention does not in any way alter the mode of making the plain net or warp, but
consists in improvements in imparting a more reliable lateral movement to the various
bars, we will therefore now refere to the annexed drawings which chiefly illustrate the
parts to which our said improvements principally relate.
二二 ==
The same letters of reference indicato corresponding parts in all the Figures.
IDE
Fig. 1 is a part front elevation of left hand end of machine.
Fig. 2 is a part front elevation of right hand end of machine, and
Fig. 3 is an end elevation of left hand end of machine.
-A are the standards, B the crank or driving shaft, the cam shaft, D the face cam
that imparts motion through the lever, E to the-front-comb bar, F. É is free to move
about the fulcrum G which is supported in the bracket, H which is formed with the
standard A.
When the rise a un the right end cam presses out the truck b on the lower end of
the lever E it will cause the nose c on the upper end of the said lover E at the same
end of machine to move in the comb bar F. On the opposite end of machine and on
the cam D there is an indent d counter or female to the rise on right end cam to
permit the comb bar and the lever to move laterally thereby keeping the comb bar
rigid. This motion as is common to the plain net trade takes place when exchanging
carriages from front to back comb bar.
When it is necessary to shog or move laterally the guide bar which carries or guides
the threads so as to make a twist round the carriages, the rise e on the cam I on the
face of spur wheel at left hand end of machine moves out the truck which rides on a
pin secured to the lever J the said lever J being free to move about the fulcrum K
which is supported by the bracket L which is secured to the standard A the upper
end of the said lever J when such motion takes place will move outwards, and take
with it through its connection with the guide bar M at the part N of the said guide
bar M thereby giving the required motion. The opposite end of the same bar is
connected to a suitably curved flat steel spring 0 (Figs. 2 & 3) for the purpose of
bringing the bar M on to dead stop or to interval of rest on its cam. The above
described is the motion for front guide bar a duplicate of the same details is provided

page_text: for the back guide bar and is set to act when necessary. P is the lever for shogging
the back point bar (Figs. 1 & 3) the said lever is free to move about the fulcrum g
which is secured to the bracket Q which is fastened to the standard A the upper end
of the lever P is provided with a screw which is tapped into the point bar rod u the
said rod u has affixed to it the usual shogging plate R which transmits the motion to
the end of the back point bar V: when the said lever P is moved by the rise i (Fig. 3)
on its cam W (also fig. 3) it will move in the said back point bar V through its
required motion, the spring S at the right hand end of machine (Fig. 2) one end of
which is shown secured on to top of the standard A presses against the adjustable
screw J for the purpose of returning the same to dead stop or rest.
For the front point bar duplicate details or a similar arrangement is provided. Tis
the lever which transmits motion from the cam wheel Z (Fig. 2) to the front point
bar X and Y is the spring for returning the said bar X.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
:-
1st. The use and employment of the means for moving laterally the comb bar of a
plain net or traverse warp machine for the purpose and in the manner heroin described
and illustrated by the accompanying Drawings.
2nd. The use and employment of the arrangement for moving laterally the guide
bars employed in a plain net or traverse warp machine for the purpose and in the
manner illustrated in the accompanying Drawings.
3rd. The uso and employment the arrangement for noving laterally the point bars
of a plain net or traverse warp machine in the manner and for the purpose herein
described and illustrated in the accompanying Drawings.
Delhi 1000
ALFRED H. DAVIES, M. Inst. M.E.,
Agent for the Applicants.