mproved Mechanism for Obtaining Combined Rotary and Recipro- cating Movements of Shafts, Spindles, and the like, and for the Conversion of Rotary into Reciprocating Movements in the Case of Slides and Sliding Parts.
Year: 1899

page_text: Date of Application, 24th June, 1899
Complete Specification Left, 26th Mar., 1900-Accepted, 12th May, 1900'
PROVISIONAL SPECIFICATION.
mproved Mechanism for Obtaining Combined Rotary and Recipro-
cating Movements of Shafts, Spindles, and the like, and for the
Conversion of Rotary into Reciprocating Movements in the Case
of Slides and Sliding Parts.
I, HENRY EDMONDS, of 60, Tenby Street North, in the City of Birmingham, in
he County of Warwick, do hereby declare the nature of this invention to be as
follows:
This invention is an improved mechanism for obtaining combined rotary and
reciprocating movements in the case of shafts, spindles, and such like, and for
the convertion of rotary into reciprocating movements in the case of slides, slide
carriers, and other appliances and machinery desiring a to and fro movement.
The mechanism according to this invention is characterised by an arm set at
an angle on a rotating shaft or spindle at approximately 45° from the shaft's
axial line, and a pair of levers connected together by a toggle joint and to the
inclined arm, as aforesaid, and to a stationary or movable part as a fulcrum or an
object to be traversed, the said toggle joint having an adjustment limiting or
extending the throw of the levers. The inclined arm upon the rotating shaft or
spindle has a kind of gyratory movement in respect of the shaft proper's axis
when the latter rotates, and it is preferably formed in one piece with the said
shaft.
In carrying the invention into effect in connection with a shaking barrel or
similar contrivance carried upon shaft ends, a combined rotating and axial recipro-
cation of the barrel is obtained. The shaft ends are mounted within suitable
bearings to rotate and slide, and upon one shaft end is formed the inclined arm,
before referred to, and a a pulley or its equivalent is fixed to the same, the said
arm being preferably formed at the termination of the shaft end and fitted with
a collar or its equivalent inwards of it, and fitted with a screw nut outwards of
it. A sleeve carrying a rigid link fits over the inclined arm a loose fit and takes
its abutment between the collar and the screwed nut, and the other end of the
rigid link is connected adjustably to a swinging arm fulcrummed to the stationary
bearing of the shaking barrel or to a stationary part adjacent, the said swinging
arm and link's connection and working being that of a toggle joint causing the
shaft or spindle rotated, and which has upon it the inclined arm, to be recipro-
cated in its bearings from the fact of it being rotated. By an adjustment at the
connection of the link and the swinging arm the reciprocation of the shaft or
spindle is either limited or extended.
Similar mechanism is applied to all shafts or spindles which are themselves
the parts rotated and the parts requiring reciprocation, the latter movement
eminating from their own rotary movement; for example, in the case of an iron-
ing machine for laundry work where a shifting roller would be carried by the
rotating shaft.
In the case of shaping machines the mechanism according to this invention

page_text: is applicable for traversing the slide carrying the tool holder from a rotating
but non-reciprocating shaft or spindle driven by a belt, the inclined arm being
formed on the shaft, and the end of the swinging arm, which was in the case of
the shaking barrel fixed to form the fulcrum, being connected to the tool holder
slide which is now to be the reciprocating part.
The inclined arm upon the rotating part is preferably in each case fitted to the
sleeve of the link of the toggle joint with thrust bearings, either of anti-friction
metal or of rollers.
L
1
Ր
1000
Improved Mechanism for Obtaining Combined Rotary and Recipro-
cating Movements of Shafts, Spindles, and the like, and for the
Conversion of Rotary into Reciprocating Movements in the Case
of Slides and Sliding Parts.
I, HENRY EDMONDS, of 60, Tenby Street North, in the City of Birmingham, in
the County of Warwick, Manufacturer, 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 consists of an improved mechanism, hereinafter described, for.
obtaining combined rotary and reciprocating movements in the case of shafts,
spindles, and such like, and for the convertion of rotary into reciprocating move-.
ments in the case of slides, slide carriers, and other appliances and machinery
desiring a to and fro movement.
The mechanism according to this invention is characterised by an arm or its
equivalent set at an angle upon a rotating shaft or spindle at approximately 45°
from the said shafts axial line, and a pair of levers, arms, links, or their equiva-
lents connected together by a toggle or elbow joint and to the inclined arm or,
its equivalent as aforesaid, and to a stationary or movable part or to an object
to be traversed; the said links or their equivalents being so arranged to work
in conjunction with each other and with the said arm as to cause the said shaft
or spindle from its own rotary movement as the driver to impart to itself or to.
the object, before referred to, a traversing movement or a to and fro sliding
movement, the said inclined arm or its equivalent performing a kind of gyratory
movement upon the said shaft or spindle as it rotates. The levers or links have.
an adjustment at the elbow or toggle joint in order to limit or extend at will.
the traverse of the spindle or shaft or the to and fro movement of the object to
be. reciprocated.
The invention is particularly adapted for use in connection with a shaking
barrel and will therefore be hereinafter particularly described as applied thereto.
The accompanying drawings show in Figs. 1 and 2 side and end elevations of.
the one end of a shaking barrel with the mechanism according to this invention
fitted to its shaft, whilst Figs. 3 and 4 are diagrams illustrative of the change of
position of the parts of the said mechanism and the consequent traverse of the
shaking barrel shaft, the said traverse emanating from the shaft's own rotation.
In these Figs.
is the shaking barrel body and a is its shaft, which carries the
said barrel and is supported within bearings c, c²; on a suitable frame, c³, so that

page_text: can revolve and slide freely. A pulley a³ is mounted fast upon the
Upon the end at of the shaft a³ is formed an inclined
s part of its driving means.
rm d, fitted with a collar or its equivalent, d², and with a screw nut, d³, and a
vasher d. One of the faces, f, of the collar is at right angles to the axial
ine of the arm d as also is the inner face of the washer d¹.
A sleeve e, carrying
rigid link, e, fits over the inclined arm d a loose fit, and takes its abutment
etween the face f of the collar and the inner side of the washer d'. The other
end of the rigid link e² is connected adjustably with a toggle or elbow joint
to a pair of swinging levers y, g², fulcrummed at gs to the frame, c³, of the shaking
The said
barrel shaft's bearings. The levers g, g², rest upon a flange c¹ of the frame c³ as
a stop in one direction, but they can swing upwards together as one.
levers are coupled at their outer ends, gt, g, by a rotating cross bar h, through a
hole, h2, of which the link e2 fits and can move freely up and down. The cross
bar h rotates on trunnions h3, h4, which take within holes g, g, in the levers g, g².
It will be observed from Fig. 1 that the axial line of the link is true to, or
This is prefer-
in a direct line with, the face f of the collar on the arm e.
able as a smoothly working movement is obtained thereby, but it is not absolutely
necessary.
In working, the shaft a² is rotated from the pulley a³ and the arm d is thereby:
caused to travel around therewith, but with a kind of gyratory movement in
respect of the said shaft. This gyratory movement of the arm d, is through the
link e, and the levers g, g, made to act upon the shaft a² to traverse it in the
manner indicated by the diagrams Figs. 3 and 4, the latter showing the full
extent of the movements of the shaft in either direction.
In the diagram; Fig. 3, by dotted lines, the levers g g², and the rotatable cross
bar h is shown swung upwardly in order to make it clear how the change of
position of the said levers limits the leverage of the link e², and, as a consequence,
the traverse of a shaft a²; it being understood, however, that the said link is
always coupled to the cross bar h by passing through the latter. In the dotted
position of the cross bar as shown by this fig. the link, by passing through the hole
in the cross bar, would pull rearwardly the shaft a² as shown by the chain line
in this fig. and whilst the levers g, g, are in the dotted position, and the link in the
chain line position as shown, the shaft would only be traversed back and forth a
distance equal to the leverage or throw of the arm e from the dotted position of
5 the cross bar h. The limiting movement as aforesaid is consequent upon the
lessening of the length of throw of the link e².
0
The link e need not move up and down within the hole h² of the cross bar h,
but it is preferably made to do so in order to obtain a smoother movement between
the parts.
Similar mechanism to that described and illustrated would be fitted to all
shafts and spindles which are themselves the parts rotated and requiring recipro-
cation, although in the application various modifications in the fitting may be
desirable.
In the case of a shaping machine the mechanism according to this invention
15 is applicable for traversing the slide carrying the tool holder from a rotary but
non reciprocating shaft or spindle driven by a belt, the inclined arm d being
formed on the shaft, and the ends g of the swinging levers g, g, which were in
the case of the shaking barrel jointed to the frame, being connected to the
tool holder slide which is now to be the reciprocated part.
50
55
The inclined arm is preferably in each case fitted to the sleeve of the link of
the toggle joint with thrust bearings either of anti-friction metal or of rollers
Having now particularly described and ascertained the nature of my sai
invention, and in what manner the same is to be performed, I declare that wha
I claim is:-
First. A mechanism for obtaining combined rotary and reciprocating move
ments and for the convertion of rotary movements into reciprocating, distinguishe

page_text: by an inclined arm or its equivalent rigid upon a rotating shaft or spindle, a link
the one end of which works loosely upon the said arm between right angled
abutments thereof, and a toggle or elbow joint or rotatable connection to which
the other end of the said link is attached or of which it forms a part, and which
may be either stationary or moving to reciprocate the rotatable shaft or spindle
or an independent slide or slide carrier, substantially as described.
Second. A mechanism for obtaining combined rotafy and reciprocating move-
ments, comprising a rotatable shaft having rigid upon it an inclined arm d and
right angled abutments such as f, d, a link e² one end of which works loosely
upon the said inclined arm between the abutments, a pair of levers g g² jointedly
connected at g³ to a fixed frame or to a part to be reciprocated, and a toggle or
elbow joint between the said link and levers, substantially as described and set
forth.
Third. In a mechanism as described, limiting or extending the traversing
movement of the slide, slide carrier, or spindle or shaft by the adjustment of the
position of the toggle or elbow joint upon the link, substantially as described
and set forth.
Fourth. A mechanism for obtaining combined rotary and reciprocating move-
ments constructed arranged and fitted in the manner described and set forth in
the drawings.
Dated this 23rd day of March 1900.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Also at Liverpool, London and Manchester,
Patent Agents for the Applicant.