IMPROVEMENTS IN APPARATUS FOR PRODUCING VARIABLE, RECIPROCATING, and ROTATIVE MOTION
Year: 1880

page_text: LETTERS PATENT to George Jones, of Camberwell, in the County of Surrey,
•
Machinist, for an Invention of "IMPROVEMENTS IN APPARATUS FOR
PRODUCING VARIABLE, RECIPROCATING, and ROTATIVE MOTION."
PROVISIONAL SPECIFICATION left by the said George Jones at the Office.
of the Commissioners of Patents on the 29th June 1880:
.
GEORGE JONES, of Camberwell, in the County of Surrey, Machinist. "IMPROVE
MENTS IN APPARATUS FOR PRODUCING VARIABLE, RECIPROCATING, AND ROTATIVE
MOTION."
My Invention is designed for the conversion of constant rotative motion into a
variable reciprocating motion in a direct and simple manner, and at the same time
to produce a new rotative motion upon the reciprocating body to be used in
combination therewith if desired.
My apparatus is preferably in the form of a circular drum, on the edge of which
is cast or fitted a perpendicularly projecting face or rim, either toothed or smooth
faced.
The circular drum is provided with a central slot in which slides the boss or
bearing surrounding the shaft that causes the drum to rotate. When the boss is at
the centre of the drum the drum rotates concentrically with the shaft, and when
the boss or bearing is travelled along the slot towards the circumference of the
drum, the drum revolves eccentrically with the shaft.
Upon the inside and outside face of the projecting rim of the drum travel two
rollers, whose axes are carried by a rod, bar, or other suitable body in which it is
desired to produce reciprocating motion, the said rod, bar, or other suitable body
being supported by guides, so that it is only capable of sliding motion in the
direction of the axis of the revolving drum.
In this way the variable eccentricity of the revolving drum may be applied to
produce in a simple and effectual manner a variable reciprocating motion in any.
suitable rod, bar, or other body.
The rotation of the two small rollers before described may be also made use of in
combination with the reciprocating motion of the rod or bar. These motions may
be applicable.to a large number of purposes.
•
I may further modify my arrangement by applying to the rotating drum a series
of perpendicular circular rims of different diameters and eccentricities, by means of
which a variety of reciprocating--motions- may be produced-in different directions; -
all mutually arranged relatively to one another as may be desired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said George Jones in the Great Seal Patent Office on the 29th December
1880.
GEORGE JONES, of Camberwell, in the County of Surrey, Machinist.
"IMPROVE-
MENTS IN APPARATUS FOR PRODUCING VARIABLE, RECIPROCATING, AND ROTATIVE
MOTION."
My Invention is designed for the conversion of constant rotative motion into a
variable reciprocating motion in a direct and simple manner, and at the same time
to produce a new rotative motion upon the reciprocating body to be used in
combination therewith if desired.
My apparatus is preferably in the form of a circular drum, on the edge of which
is cast or fitted a perpendicularly projecting face or rim, either toothed or smooth
faced.
The circular drum is provided with a central slot in which slides the boss or
bearing surrounding the shaft that causes the drum to rotate. When the boss is at
the centre of the drum the drum rotates concentrically with the shaft, and when
the boss or bearing is travelled along the slot towards the circumference of the
drum, the drum revolves eccentrically with the shaft.
Upon the inside and outside face of the projecting rim of the drum travel two
rollers, whose axes are carried by a rod, bar, or other suitable body in which it is
desired to produce reciprocating motion, the said rod, bar, or other suitable body
being supported by guides, so that it is only capable of sliding motion in the
direction of the revolving drum.
In this way the variable eccentricity of the revolving drum may be applied to
produce in a simple and effectual manner a variable reciprocating motion in any
suitable rod, bar, or other body.
The rotation of the two small rollers before described may be also made use of in
combination with the reciprocating motion of the rod or bar. These motions may.
be applicable to a large number of purposes:
I may further modify my arrangement by applying to the rotating drum a series
of perpendicular circular rims of different diameters and eccentricities, by means of
which a variety of reciprocating motions may be produced in different directions,
all mutually arranged relatively to one another as may be desired.
And in order that my Invention may be the better understood, I now proceed to
describe my apparatus, reference being had to the Drawings hereto annexed and to
the figures and letters marked thereon.
Figures 1 and 2 show two elevations of my apparatus; A is a fly wheel or other
rotating wheel or plate. Upon the face of the Hy wheel or plate are fixed two
circular perpendicularly projecting rims or drums B, B'.
These drums or rims have lugs C, C, attached to their circumference, which
slide in the slotted arms of the fly wheel, wheel, or plate.
These lugs C, C', fit upon suitable spindles D, D', which have a thread cut upon
them fitting in one of the aforesaid lugs C¹ as a nut, and allowing the lug of the
other drum to slide over the spindle.
The spindles D upon which the thread is cut are brought through the rim of the
wheel, where they terminate in the shape of a square head E sunk in a recess in
the rim of the wheel. By the application of a box spanner or key wrench to
this square head the screws D, D¹, may be revolved, and the circular druins B, B',
may be moved eccentrically out of centre with the wheel A.
The Drawing shows two drums B, B', arranged in the wheel, flywheel, or disc A,
and in which the eccentric regulation is effected by opposite spindles; but I do
not limit myself to this number of drums or this direction of adjustment. I may

page_text: use any convenient number of drums on the same wheel, or any varied direction
of eccentrical adjustment that may be desired, or the eccentric drums may be
used without a flywheel, the shaft boss being adjustable in a slot across their
diameter.
The motion of these eccentric drums B, B¹, is made use of by means of the
rollers F, F, one on each side of the rim, attached to suitable bars or rods G, G.
These bars or rods G, G, are caused to travel only in the direction of their
length by suitable guides H, H, so that the motion produced upon them by the
revolving eccentric drums B, B', is a plain reciprocating travel.
At the same time as the rollers F, F, are caused to revolve by their friction
on the rims or drums B, B', or may be made to do so by gearing the rims or
drums B, B', and the roller or rollers F, F, this rotatory motion may be made use
of together with the reciprocating travel of the rods or bars G, G.
And having now fully described and ascertained the nature and object of my
Invention, and the mode in which it is to be performed, be it known that what I
consider novel and useful, and desire to protect by my Letters Patent is,―
The application of an adjustable circular drum or drums to any rotative wheel
or plate, so that the circular drums may be set out of centre with the rotative
motion to produce any required length of reciprocating travel by means of rollers
working in guides upon their circumference, substantially as described.
In witness whereof, I, the said George Jones, have hereunto set my hand and
seal, this Twenty-eighth day of December, in the year of our Lord One
thousand eight hundred and eighty.
5 In the presence of
JOHN C. FELL,
0
City Patent Office,
23, Rood Lane,
London, E.C.,
Patent Agent.
GEORGE JONES. (L.S.)