Improvements in Machinery for Sawing the Notches of Umbrella and Parasol Runners and Top Notches.
Year: 1896

page_text: Date of Application, 17th Sept., 1896
Complete Specification Left, 17th May, 1897-Accepted, 26th June, 1897
Improvements in Machinery for Sawing the Notches of Umbrella
and Parasol Runners and Top Notches.
We WILLIAM ALLEN BINDLEY, and WILLIAM JAMES GELL, both of
Armstrong Works Chester Street Aston Road, Birmingham in the County of
Warwick, Manufacturers, and AMBROSE FREDERICK BOHAM, of Jaffray Road,.
Erdington in the County of Warwick, Machinist do hereby declare the nature
of this invention to be as follows:-
Our invention consists of the improvements hereinafter described in machinery
for sawing the notches of umbrella and parasol runners and top notches; our said
invention having for its object the making of the notches in the said runners and
top notches of greater uniformity than is attainable by the machinery ordinarily
employed.
We will describe our invention in connection with the sawing of the notches in
an umbrella runner; and in order that our invention may be the better understood we
remark that the notches are made by a circular saw rotated by a lathe the runner
to be notched being placed on a peg carried by a slide on the bed of the lathe.
The said slide has a to and fro motion communicated to it by a lever worked by
the attendant. The rapid motion of the lever accompanied by an intermittent
partial rotation of the runner brings successive portions of the head of the runner
under the operation of the rotating saw and the required notches are thereby
produced. The motion of the runner being effected by the action of the attendant
on the lever uniformity in the depth of the notches depends on the skill of the
attendant. By our improvements uniformity in the depth of the notches is
determined by the machinery itself and is superior to that attainable by the use of
the ordinary machinery.
In constructing machinery for sawing the said notches according to our invention
we dispense with the actuating lever of the ordinary machinery and produce the
to and fro motion of the slide carrying the runner in the following manner.
In the vertical side of the bed of the lathe is a pin or axis on which a circular
disc turns the said disc rotating in a vertical plane parallel to the rotating spindle
of the lathe. In the periphery of this disc is a groove having an undulating figure.
The slide carrying the runner to be notched bas on its end a depending finger
which engages in the undulating groove in the disc. The disc is provided with a
winch or handle by which it is turned. On the rotation of the said disc a rapid
to and fro motion is produced in the slide carrying the runner, the said runner being
thereby advanced against the rotating circular saw and withdrawn therefrom. As
the range of motion of the slide is determined by the undulating groove in the
periphery of the disc the runner in each advance motion of the slide is advanced to
the same distance and the notches cut in the head of the runner are consequently of
uniformn depth.
The intermittent rotary motion of the runner is effected by mechanism of the
ordinary kind.

page_text: Improvements in Machinery for Sawing the Notches of Umbrella
and Parasol Runners and Top Notches.
We, WILLIAM ALLEN BINDLEY, and WILLIAM JAMES GELL, both of
Armstrong Works, Chester Street, Aston Road, Birmingham, in the County of
Warwick, Manufacturers, and AMBROSE FREDERICK BOHAM, of Jaffary Road,
Erdington, in the County of Warwick, Machinist, do hereby declare the nature of
our invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
Our invention consists of the improvements hereinafter.described in machinery
for sawing the notches of umbrella and parasol runners and top notches; our said
invention having for its object the making of the notches in the said runners and
top notches of greater uniformity than is attainable by the machinery ordinarily
employed.
We will describe cur invention in connection with the sawing of the notches in
an umbrella runner; and in order that our invention may be the better understood
we remark that the notches are made by a circular saw rotated by a lathe, the
runner to be notched being placed on a peg carried by a slide on the bed of the
lathe. The said slide has a to-and-fro motion communicated to it by a lever worked
by the attendant. The rapid motion of the lever accompanied by an intermittent
partial rotation of the runner brings successive portions of the head of the runner
under the operation of the rotating saw and the required notches are thereby
produced. The motion of the runner being effected by the action of the attendant
on the lever uniformity in the depth of the notches depends on the skill of the
attendant. By our improvements uniformity in the depth of the notches is
determined by the machinery itself and is superior to that attainable by the use of
the ordinary machinery.
In constructing machinery for sawing the said notches according to our invention
we dispense with the actuating lever of the ordinary machinery and produce the
to-and-fro motion of the slide carrying the runner in the following manner.
In the vertical side of the bed of the lathe is a pin or axis on which a circular
disc turns the said disc rotating in a vertical plane parallel to the rotating spindle
of the lathe. In the periphery of this disc is a groove having an undulating
figure. The slide carrying the runner to be notched has on its end a depending
finger which engages in the undulating groove in the disc. The disc is provided
with a winch or handle by which it is turned. On the rotation of the said disc a
rapid to-and-fro motion is produced in the slide carrying the runner, the said
runner being thereby advanced against the rotating circular saw and withdrawn
therefrom. As the range of motion of the slide is determined by the undulating
groove in the periphery of the disc the runner in each advance motion of the slide
is advanced to the same distance and the notches cut in the head of the runner are
consequently of uniform depth.
Figures and 2 of the accompanying drawings represent respectively in front
elevation and plan, machinery containing our improvements for sawing the notches
in umbrella and parasol runners and top notches; Figure 3 represents the satne
partly in end elevation and partly in cross section;
Figures 4 and 5 represent respectively in elevation (partly in section) and plan
a part of the machinery detached:
Figures 6, 7 and 8 represent the undulating grooved disc of the mechanism drawn
to a larger scale than the other figures of the drawings.
Figures 9 and 10 represent respectively in elevation and plan a top notch

page_text: the notches of which have been sawn by the use of the machinery constituting
our invention.
The same letters of reference indicate the same parts in the several figures of the
drawings.
We will describe the said improvements in connection with the making of the
notches in a top notch.
a is the circular saw of the machinery by which saw the notches in the top
notch are made in the manner hereinafter described, the said circular saw a being
fixed to the spindle c of a lathe, the headstock d of which is made capable of a
backward and forward sliding motion for the purpose hereinafter described; e is
the vertical spindle or peg by which the top notch to be operated upon is carried
to and from the saw a the said spindle e passing through and being carried by a
slide operated by an undulating grooved disc h (shown separately in Figures 6, 7
and 8).
The to and fro motion of the slide fis effected by the engagement of a pin or
finger g at the rear end of the slide in the undulating groove in the periphery of
the said disc which disc is rotated during the working of the machinery by a
winch or handle i, a pinion on the axis of which handle i gears with a pinion h
rivetted or otherwise fixed to the grooved disc h. The pin or finger g on the
slide for engaging in the undulating groove of the disc h has on it an antifriction
roller g2 and the said pin is preserved in contact with the acting side of the groove
in the disc h by a spring w.
The number of undulations in the periphery of the disc h coincides with the
number of notches to be sawn in the partly made top notch.
Where the notches are to be equi-distant and of equal depth the undulations in
the disc h are uniform but where the top notch is to have a series of equi-distant
deep notches and one shallow notch, situated midway between two of the deep
notches, as in Figures 9 and 10, one of the undulations is somewhat different from
the other undulations as will be best understood by reference to Figure 8, where
the part of the undulating groove for the formation of the shallow notch is
marked .
In order to permit the vertical spindle or peg e accommodating top notches and
runners of varying sizes the said peg e is provided with a tight fitting sleeve e* the
external diameter of which is suitable to receive the notch ring or partly made
runner to be operated upon.
The sleeved spindle e, e carrying the notch ring b is intermittently rotated in
the following manner. The said spindle has on that part of it situated below the
slide a ratchet wheel k which on the back motion of the slide is actuated by a
spring pawl (see Figure 2) situated in the guide way of the slide bed. The
ratchet wheel is prevented from turning when the pawl passes over it on the
forward motion of the slide by a spring controlled lever or pawl 2 on the slide
engaging with a notched or toothed wheel 2 on the top notch carrying spindle e, e²
the said wheel 2 being situated immediately above the ratchet wheel k (see
Figure 3).
In order to permit of the putting of a notch ring on the sleeved peg e, e2 without
danger to the attendant of the machine the headstock d, d carrying the rotating
saw a is mounted on a slide p by moving which in the direction of the straight
arrow in Figure 2 the headstock d, d and saw a may be carried so far back that
there is little or no danger of the fingers of the attendant coming into contact with "
the rotating saw a. The slide p is operated by a bandle t the axis t2 of which is
eccentrically formed on a disc r situated between the longitudinal bed bars 8, s of
the lathe. On the turning of the handle t through a semi-circle in the direction of
the curved arrow in Figure 2, the slide p and with it the headstock d, d and saw a
are made to travel backwards, that is, in the direction of the straight arrow in
Figure 2. After the notch ring to be operated upon has been fitted on the
sleeved spindle e, e² the reverse motion of the handle t brings the saw a in position
for work.

page_text: The notch ring b is held in position on the sleeved peg e, e2 during the operation
of the machine by a spring pressed plunger m which is raised by a lever n to
permit of the putting on of the notch ring to be operated upon. When in position
on the sleeved peg e, e the rim of the notch ring b is situated immediately over the
two arms or branches o², o2 of a forked lever o, o, o. To remove the top notch b
after the notching operation the long arm of the lever n is depressed for the
purpose of lifting the plunger m from off the top notch when on the further
depression of the lever n it strikes and depresses the free end of the lever o, o³, o,
the forked arms o³, o2 of which engaging with the rim of the top notch 6 lift the
said top notch from the sleeved peg e, e² and cause it to fall from the machine.
The forward or acting position of the saw a with respect to the slide f is capable
of adjustment, so as to fit the machine to operate upon notches and runners of
varying sizes and saw notches of different depths, the said adjustment being
effected as follows. The spindle 2 of the headstock slide operating handle t, is
carried by an adjusting plate p² which when the position of the saw a with respect
to the slide has been determined is clamped to the headstock slide p by the screw
nuts ptaking on screw pins, p on the slide p, which screw pins p, p occupy
slots p, p in the adjusting plate p2. The position of the adjusting plate with
respect to the headstock slide p is changed by turning a screw p¹ which bears against
a plate at the front of the headstock slide p and takes into a screwed hole in
a block on the spindle 2 which block occupies a slot in the slide
adjustment, the parts are fixed by the screwing home of the screw nuts p³, p³.
The action of the machine is as follows:-
After
The position of the saw a with respect to the slide f having been adjusted by the
turning of the screw pl and fixed in its adjusted position, the headstock d, å and
saw a are moved into their back position by operating the headstock slide p so as
to permit of the placing of a notch ring on the sleeved spindle e, e. This having
been done the saw a is brought into its forward position and the winch or handle i
is turned so as to give a complete rotation to the undulating grooved disc h. By
this operation a series of rapid to and fro motions is given to the slide f the top
notch being each time advanced against the saw and withdrawn therefrom. On
each withdrawal of the slide f the ratchet wheel k on the top notch carrying peg or
spindle e strikes against the fixed spring pawl and effects the turning of the said
pege and top notch & through the desired angle. On the complete notching of
the top notch b it is detached from the peg e, e in the manner hereinbefore
described.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that we claim
as our invention of "Improvements in machinery for sawing the notches of umbrella
and parasol runners and top notches" :-
First. The construction and arrangement or combination of parts hereinbefore
described and illustrated in the accompanying drawings for giving to the slide
carrying the top notch or the like, a rapid to-and-fro motion, the said arrangement
of parts consisting essentially of a disc capable of being rotated, in the periphery
of which disc is an undulating groove, a pin or finger on the underside of the notch
ring carrying slide engaging in the said undulating groove and communicating to
the slide a rapid to-and-fro motion on the rotation of the grooved disc substantially
as and for the purpose described and illustrated.
Secondly. The combination with the undulating grooved disc and reciprocating
notch ring carrying slide operated thereby, of a ratchet wheel on the peg or
spindle supporting the notch ring and a fixed spring pawl on the bed of the slide
for giving to the ratchet wheel, peg and notch ring a partial rotation on the back
notion of the slide, the ratchet wheel being prevented from turning on the forward
motion of the slide by a spring pressed lever or pawl on the said slide engaging
with a toothed wheel on the notch ring supporting peg of the slide substantially as
herein before described and illustrated in the accompanying drawings.

page_text: Thirdly. The combination with the mechanism claimed in the prior claims of
the arrangement of parts for adjusting the position of the saw with respect to the
notch ring carrying slide the said arrangement of parts consisting of an eccentric
for operating a slide carrying the headstock of the lathe substantially as-
hereinbefore described and illustrated in the accompanying drawings.
Dated the 29th day of April 1897.
WILLIAM ALLEN BINDLEY.
WILLIAM JAMES GELL.
AMBROSE FREDERICK BOHAM..