Year: 1887

page_text: Date of Application, 18th Oct., 1887
Complete Specification Left, 18th July, 1888
Complete Specification Accepted, 24th Aug., 1888
We, FRANCIS MURR KETTON and CHARLES WILLIAM HOLLIS of Meadow Works
Nottingham in the County of Nottingham Engineers and Tool Makers do hereby
declare the nature of this invention to be as follows:-
Our invention relates to any Machine or Machine Tool requiring a Variable or
Automatic feed or Driving Motion and consist of.—
Firstly. Two Rollers, one upon the driving, and one upon the driven shaft, working
hetween two discs at right angles to axis of rollers, the variation being obtained by
the movement of rollers across face of discs by means of a connecting rod. By
attaching the connecting rod to carriage or front of Machine receiving motion, or by
mechanism connecting driven shaft with the aforesaid connecting rod, an automatic
variable driving or feed motion is obtained.
The driving shaft is held in position by suitable bearings and receives its motion
from gearing or pulley keyed upon end of same, the driving shaft is key grooved to
receive a roller which slides upon driving shaft. This roller gives motion to two discs
working upon a spindle, one keyed upon spindle, the other running loose, the said
spindle being at right angles to axis of driving shaft. Upon spindle, pressure is
applied by nut or other means to discs, through our anti-friction arrangement,
consisting of two hardened steel plates on disc spindle with balls working between
their faces, allowing discs to revolve freely in opposite directions under pressure. By
means of these discs motion is conveyed to a roller keyed upon driven shaft which is
key-grooved to allow of roller sliding backwards and forwards on face of discs. Each
roller is grooved to receive a glut, each glut being secured to a connecting rod, which,
when moved backwards or forwards passes rollers across and between faces of discs,
thereby giving a variation of speed to driven shaft.
By means of a worm upon driven shaft working into worm wheel threaded to form
a revolving nut, operating upon a screw upon connecting rod, or by a train of wheels,
driven shaft is made to revolve nut upon connecting rod, thereby passing the rollers
across face of discs, giving an increasing or decreasing automatic feed to driven
shaft.

page_text: The whole arrangement of discs, rollers and necessary shafts and bearings may be
stationary, the driven shaft and connecting rod of indefinite length and the connecting
rod operated upon at any part of its length.
The whole arrangement of discs, rollers shafts and necessary bearings may be
carried with saddle or other moveable part of Machine, and would be driven by an
independent driving shaft connected by gearing to end of aforesaid driving shaft,
thereby giving motion to driving roller and discs as before.
Secondly. A Variable or Automatic feed or Driving Motion is obtained with two
pairs of discs as follows.-A disc is keyed upon driving spindle with suitable bearings
to carry another disc running loose upon driving spindle with the before mentioned
anti-frictional means of applying pressure to loose disc upon driving spindle. These
dises drive a roller between them which is keyed upon a shaft at right angles to
driving disc spindle, this roller shaft has a second roller keyed upon its opposite
end driving a second pair of discs, one disc being keyed fast upon the driven
spindle and the other disc running loose upon driven spindle with the before
mentioned anti-frictional means of applying pressure through discs to second roller.
The driven spindle of second pair of discs is at right angles to roller shaft and in
the same parallel plane but may be at any angle to driving spindle of first set of discs.
To balance pressure of rollers between faces of discs, a carrier roller is placed
running upon stud upon the opposite side of disc spindle, but in the same line of axis
with the before mentioned roller shaft.
Thirdly. Two discs keyed upon a hollow spindle, back to back, with space between
same for necessary bearing, two other discs keyed upon a spindle, one at each end,
this spindle passing through hollow spindle, forming two pairs of discs working face
to face with each other; at one or both ends of spindle pressure is applied to drive
rollers between each pair of discs. The rollers are keyed upon shaft at right angles
to disc spindles, any one of the four rollers may be the driver which may be connected
by connecting rod with roller upon other side of disc spindle between the same pair of
discs, the second roller being keyed upon feed or driven shaft or may be used as a
carrier roller. The driving roller gives motion through hollow spindle to second pair
of discs, between which two or more rollers are driven, giving a variable feed or
driving motion in any direction from centre of disc spindle.
Dated this Seventeenth day of October 1887.

page_text: FRANCIS MURR KETTON and CHARLES WILLIAM HOLLIS, Meadow Works,
Nottingham, in the County of Nottingham, Engineers and Tool Makers do hereby
declare the nature of this invention and in what inanner the same is to be performed,
to be particularly described and ascertained in and by the following statement :—
:
Firstly Two rollers, one upon the driving and one upon the driven shaft, working
between two discs at right angles to axis of rollers, the variation being obtained by
Or
the movement of rollers across face of discs, by connecting rod or other means.
two rollers, one keyed on the driving and one on the driven shaft working between
two discs at right angles to axis of rollers, the variation to the driven roller being
obtained by the movement of the two discs by revolving nut and screw or other
means across the aforesaid rollers.
By attaching connecting rod or screw to the carriage or part of machine receiving
motion or by mechanism connecting driven shaft with the aforesaid connecting rod or
screw an automatic variable driving or feed motion is obtained.
Fig. 1. sheet 1. is a Longitudinal section and Fig. 2 sheet 1. is a Transverse section
of one modification of our invention.
The driving shaft A held in position by suitable bearings, receives its motion from
gearing or pulley B, keyed upon end of same, the driving shaft is key grooved
to receive a roller which slides upon driving shaft. This roller C gives motion to
two discs D and d working upon a spindle E, one disc d keyed upon spindle, the other
disc D running loose; the said spindle E being at right angles to axis of driving shaft A.
Upon spindle E pressure is applied by nut F or other means to discs through our
anti-frictional arrangement, consisting of two hardened steel plates G and g on disc
spindle with balls H working between their faces allowing discs to revolve freely in
opposite directions under pressure.
By means of these discs D and d motion is conveyed to a roller J keyed upon
driven shaft K which is key grooved to allow of roller sliding backwards and forwards
between faces of discs. Rollers C and J are grooved to receive gluts L and M each
glut being secured to a connecting rod N which when moved backwards or forwards
passes rollers across and between faces of discs, thereby giving a variation of speed to
driven shaft K.
Fig. 3 sheet 2 is a Longitudinal section and Fig. 4 sheet 2 is a Transverse section
of another modification of our invention shewing an arrangement by which the discs
are passed across rollers, thereby giving a variation of speed to driven shaft.
Driving shaft A has a roller C keyed at one end, receiving its motion by pulley B
or other means from opposite end of shaft. Roller C gives motion to two discs D
and d working upon spindle E, one disc d keyed upon spindle and the other disc D
running loose, the said spindle being at right angles with driving shaft A; upon the
opposite side of disc spindle E & the same distance as roller C is from it another
roller J is keyed on driven shaft K which is held in suitable bearings in the same line
of axis as driving shaft A. By means of discs D and d motion is conveyed from
roller C to roller J the necessary pressure being applied to discs by our anti-frictional
arrangement as before described.
Disc spindle E is carried upon a bracket L secured to connecting rod N which is

page_text: moved backwarks and forwards by means of revolving nut and mitre wheels or other
means thereby giving a variable speed to driven shaft K by means of discs passing
across rollers.
By means of Bevel gear and worm and wheel, by a train of wheels, or other means,
conveying motion from driven shaft to connecting rod, thereby passing the rollers
across face of discs, or the discs across rollers, each method as hereinbefore described,
gives an increasing or decreasing automatic feed to driven shaft.
The whole arrangement of discs, rollers and necessary shafts and bearings may be
stationary, the driven shaft and connecting rod of indefinite length and the connecting
rod operated upon at any part of its length.
The whole arrangement of discs, roller shafts and necessary bearings may be
carried with saddle or other moveable part of machine and would be driven by an
independant driving shaft connected by gearing to end of aforesaid driving shaft
thereby giving motion to driving roller and dises as before.
Secondly: A variable or automatic feed or driving motion is obtained with two
pairs of discs as follows.―
A disc B Fig. 5 sheet 3 is keyed upon driving spindle A running in suitable
bearings, another disc C running loose upon driving spindle with the before mentioned
anti-frictional means of applying pressure to loose discs upon driving spindle.
These discs drive a roller D between them which is keyed upon a shaft E at right
angles to driving disc spindle, this roller shaft E has a second roller keyed upon its
opposite end driving a second pair of discs G and H, one disc G being keyed fast
upon the driven spindle K, and the other disc H running loose upon disc spindle K,
with the beforementioned anti-frictional means of applying pressure through discs to
second roller F. The driven spindle K of second pair of discs G and H is at right
angles to roller shaft E and in the same parallel plane but may be at any angle to
driving spindle A of first set of discs B and C. To balance pressure of rollers D and F
between faces of each set of discs, carrier rollers I and J are placed, running upon
studs upon the opposite side of disc spindle but in the same line of axis with the
beforementioned roller shaft E.
Thirdly Two discs keyed upon a hollow spindle back to back with a space between
same for necessary bearing. Two other discs keyed upon a spindle one at each end,
this spindle passing through hollow spindle forming two pairs of discs working face to
face with each other; at one or both ends of spindle pressure is applied to drive
rollers between each pair of discs.
The rollers are keyed upon shaft at right angles to disc spindles, anyone of the four
rollers may be the driver which may be connected by connecting rod with roller upon
other side of disc spindle, between the same pair of discs, the second roller being
keyed upon feed or driven shaft, or may be used as a carrier roller. The driving
roller gives motion through hollow spindle to second pair of discs, between which, two
or more rollers are driven giving a variable feed or driving motion in any direction
from centre of disc spindle.
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 :-
The combination and arrangement of mechanism by discs and rollers, with an anti-
frictional means of conveying necessary driving pressure to the said discs and rollers,
by which means a variable and automatic feed or driving motion is obtained.
Dated this Seventeenth day of July 1888.