A New or Improved Stand for Supporting Circular Saws or similar Articles while being Hammered or otherwise Treated.
Year: 1899

page_text: A New or Improved Stand for Supporting Circular Saws or similar
Articles while being Hammered or otherwise Treated.
I, JAMES FARQUHAR, Saw Maker, 20, Portobello Road, Dublin, Ireland, do
hereby declare the nature of this invention to be as follows:-
The object of my invention is to support circular saws or other articles while
being hammered or otherwise treated so as to relieve the workman of the weight
and also allow him to freely and easily manipulate the same while the process is
being carried on.
The construction of my invention is substantially as follows. First, I have
an iron tripod, in the centre of which is a hole of suitable size tapped to receive
the screwed end of an iron tube. On said tube I put a hand wheel also tapped
to act as a lock nut to fix it when in position.
On top end of tube is fixed by means of screw and nut, or otherwise, an iron
disc, about twelve inches in diametre. Said disc, may be fixed on the end of a
second length of iron tube, which is inserted telescopically into the first mentioned
tube; so as to allow it to be raised or lowered at will. An iron collar is fixed
on top end of first mentioned tube. A set screw passes through said collar and
outside tube, and engages with inside tube; so as to hold it at any height required.
I also put an iron rod, hand wheel, or other appliance, about midway between
ends of outside tube; by means of which it is turned in tripod when it is
required to be raised or lowered.
Second, I make a crosshead composed of wood, iron. or other suitable material;
having four arms, which may be telescoped; so as to allow them to be extended.
There is a hole in centre of crosshead, which receives a pin fixed in the centre
of aforesaid iron disc; and by means of which it is held in position.
On the under side of each arm of the crosshead, is a small pulley, castor; or
roller, or other suitable appliance, which rests on the disc; and allows it to freely
rotate on the same. On the upper side of each arm of crosshead, is a castor, ball,
or roller, of suitable design; on which the circular saw, or other article rests;
and by means of which, the workman, is enabled to move it freely and easily.
Dated this 12th day of May 1899
JAMES FARQUHAR.
20, Portobello Road, Dublin.
A New or Improved Stand for Supporting Circular Saws or similar
Articles while being Hammered or otherwise Treated.
I, JAMES FARQUHAR, Saw Maker, 20, Portobello Road, Dublin, Ireland, do
hereby declare the nature of this invention and in what manner the same is to
ID 871

page_text: be performed, to be particularly described and ascertained in and by the following
statement:
In the operation of hammering circular saws, iron plates or other similar
articles, the workman is often under the necessity of supporting the saw or
the like articles himself, while hammering the same on the anvil; and is
thereby subjected to a considerable amount of fatigue, and difficulty, in the
execution of the work; especially in the case of large saws. And to relieve him
of this, it is often necessary to employ a seconed, or third man to assist him.
The object of my invention, is to overcome this difficulty, by providing a means
by which the circular saw or other similar article is supported, while being
hammered, or otherwise treated; so that the workman is relieved of the weight,
and at the same time is enabled to freely and easily manipulate the same.
The construction of my said invention, is substantially as hereinafter described,
and as illustrated by the accompanying drawings.
Fig. 1. Is a drawing shewing the stand in elevation, and also one form of lever
for tilting it from the base.
Fig. 2. Is a plan of the same.
Fig. 3. Is an elevation, shewing in detail the tubular crosshead, one arm of
which is complete, and partly extended; the other arms being broken. Also
shewing castors, lug adjustments, tubular rivits, discs, flange, and part of
telescoping stem.
Fig. 4. Is a plan of the same.
Fig. 5. Is an elevation of an alternative form of lever for tilting the stand
from the base. Said lever rests on a four legged fulcrum, detached from the
machine. Drawing shews a weight on the arm of lever, and the method of moving
the same by means of the operator's leg.
Fig. 6. Is a plan of the same.
Fig. 7. Is an elevation of part of the stand shewing the disc on which the
crosshead revolves, hinged to a plate attached to the tube G. And also the lever
and connections by means of which the said disc is tilted.
Fig. 8. Is a plan of the hinged disc and plate.
In the construction of my invention, I provide an iron trypod, A, Fig. 1 of
suitable size and weight; having a central boss B, which is bored, and tapped
with screw thread, to receive the screwed end of an iron or steel tube F, Fig. 1,
of corresponding diameter. Said boss B, may be bored out to receive a bush C,
Fig. 7, tapped with screw thread, to receive the aforesaid tube F, Fig. 1.
On the tube F, Fig. 1, which is screwed to a suitable distance from the end, I
put a hand wheel D, which acts as a lock nut. About midway from ends of
tube F, I put two handles E, by means of which the tube is turned in the boss,
when it is desired to raise or lower it to any required height. On the top end
of tube F, I put an iron or steel disc J, Figs. 1, 3, & 4, of suitable diameter;
and which may be fastened in position in various ways as hereinafter discribed.
I have a tubular malleable casting, of suitable length, and diameter, having a
flange I, Fig. 3, about midway from the two ends. One end of casting may be
screwed into end of tube F. Fig. 1, untill the under side of the flange I bears
hard on the end of tube F. Of it may be simply fitted into the end of tube F,
and pinned; or by any other convenient method. The aforesaid disc J, Figs. 1,
2, 3, & 4, having a hole in the centre of suitable size to receive the other end
of tubular casting T, Fig. 3. is passed over the same, and made fast to the
aforesaid flange I, by means of countersink headed, or other screws Fig. 3.
Or an alternative method of accomplishing the same result, may be to make
this part, and the disc J in one malleable casting; so as to obviate the necessity
of building it from separate pieces. The same result may also be attained by
screwing a piece of iron tube into a malleable flange, and into the tube F, Fig. 1,
untill the under side of the flange bears hard against the end of tube F.
The disc J. Figs. 3 & 4, may then be passed over the free end T, Fig. 3, and

page_text: fastened to flange with screws as already described. It will be understood that
any or all of these methods may be adopted.
In Fig. 7, which shews the machine arranged to tilt at the head a different
method of attaching the disc is shewn. The plate is attached to a
flange I, with
screws, and has a hole in the centre, corresponding to the hole in the flange i, both
being tapped, are screwed on to the end of tube G, or F, as the case may be.
The disc J, is hinged to the plate k, at p. In this case the pin T, is fixed
to the disc J by being screwed into a flange j which is then attached to the
disc with screws. And this is the method I prefer to adopt.
This machine being also intended to support circular saws when being gullited
with the fly press, in which case it has to be raised to a higher level, than when
the saw is being hammered on the anvil. In order to accomplish this more
quickly, than could be done by the screw provided on the tube F, Fig. 1. I
provide a second tube G, Fig. 1, which telescopes into tube F. The tube G, is
held in position at any required height by a fly nut H, Fig. 1, on the top end
of tube F; which is slit and taper screwed to correspond to taper in fly nut H
so that it may be readily closed on tube G. In this case, the disc J is attached
to the tube G in any of the ways already described, instead of to the tubes F.
In order to support the circular saw or other similar article, and to enable the
workman to freely move it about as required, I'make a crosshead of wood, iron,
or steel tubing, but preferably the latter, as shewn in the accompanying drawings.
In the case of a wooden crosshead, it may be made simply of two pieces of
wood of suitable size: half checked in the centre the two pieces crossed, and
fitted together where checked.
It may be strengthened at the centre where checked, and crossed, by a steel,
or iron plate screwed on each side; a hole of suitable size is put in the centre,
to receive the pin T. Figs. 1. 3, & 7, which forms a pivot on which the cross-
head is made to rotate.
On the under side of each arm of the crosshed, I put a small castor or roller,
of suitable design N, Fig. 3, and at a suitable distance from the centre, and
which rests on the aforementioned disc J, Figs. 1. 3 & 4, which furnishes a support
to the crosshead; and a plane on which the castors or rollers may freely travel,
while the crosshead rotates on pin T.
On the extreme end, but on the upper side of each arm, I put a castor Q of
suitable design, on which the circular saw, metal plate, or the like, rests, while
being hammered or otherwise treated and which allow it to be moved freely on
the same.
The crosshead may also be made of a malleable casting, with three or four arms
radiating from a centre, and having auxiliary arms to extend so as to make it
suitable for supporting circular saws of larger diameter. In this form of cross-
head, the stationary arms are made with a slot running along the centre.
There is a light flange or rib along each outer top edge of each arm.
The movable part of the arm is adjusted to any position desired by set screws
and washers. The set screws are tapped into projections on the under sides of
the movable arms; the said projections running in the slots of the stationary
arms, and the washers engage with the under sides of the stationary arms.
In this form of crosshead the under castors are attached to the under sides
of the stationary arms and the upper castors are attached to the outer upper ends
of the movable arms.
While it will be understood that either or both of the forms of crossheads
described above will be used as may be desired. and both are essential parts of
my invention and are both included in this application: I shall now particularly
describe the form of crosshead which I prefer and as illustrated by the accom-
panying drawings.
The crosshead is made of steel tubing throughout with the exception of two
steel discs K, Fig. 3, and 4 in the centre of the same. The tube is of such

page_text: .
diameter and gauge as will insure sufficient strength while at the same time
being as light as possible.
The manner of its construction is illustrated in the plan and elevation of the
accompanying drawings Figs. 3 & 4 and is substantially as follows.
I make two steel discs K, Figs. 3 & 4 having a circular hole in the centre of
each, of suitable size through both of which I put a short piece of steel tube X,
Fig. 3. One end of each tubular arm 0, Figs. 1, 3, & 4, is prepared so as to
mitre round the tube X, in the centre of the discs K, Fig. 4 and is then inserted
between the discs K at right angles and brought hard up to the aforesaid tube X,
Figs. 3&4. Two holes are then bored in each arm, corresponding to holes in
discs which are then rivited together with tubular rivits L, Figs. 3, & 4.
On the outer end of each arm Ö I form an elbow Z from the tube itself on which
I put a castor Q, Figs. 1, 3 & 4. At a suitable distance from the centre of the
crosshead thus formed I put a small castor or pulley M, Fig. 3, on the under
side of each arm.
Said castor or pulley is mounted on a fork, formed on the end of steel tube of
suitable diameter and gauge.
The tube is screwed on the other end and is put through the arm O from the
under side and made fast with a nut on the top, Figs. 1 & 3. Before putting the
stem of the castors or pulleys through the arms 0 I fit washers or plates Y,
Fig. 3, (curved to the radius of the circumference of the arms) on the shoulders
of the forks, which are made square. This I do for the double purpose of
strengthening the forks at those parts, and to prevent the stems from turning
in the holes in the arms. The object of the castors or pulleys is as will be
seen by the drawings Fig. 1, & 3, to allow the crosshead to revolve freely on
the pin T, Figs. 1 & 3, while at the same time giving it support as they travel on
the plane formed by the disc J, Figs. 1 & 3.
A further development of this crosshead is attained by the addition of extend-
ing arms P. Figs. 1, 3. & 4 which telescope into tubes O.
In this case the elbows Z are formed on the extending arms P and the
castors are attached to the ends of them Figs. 1, 2, 3 & 4. In tube 0 a slot V,
Fig. 4, is cut longitudinally to a suitable distance from the end
which telescopes into tube 0 SO as to receive the stem M, of the
castors N and also the tubular rivits L, Figs. 1, 3, & 4, which thus form a
guide, and a means of maintaining the elbows Z and castors Q, on tube P in an
upright position.
The means I adopt to adjust the tube P at any desired position is shewn in
Figs. 3 & 4 of the drawings, and is as follows. The outer end of each tube O
is slit on the under side to a suitable distance W, Fig. 4. On each side of the
slits I put a suitable lug R. A bolt is then passed through a hole in each
lug and by means of a wing nut S on said bolt I close the tube 0 on the tube P
which is thus fixed rigidly.
In the process of hammering circular saws, or metal plates of any kind, it is
often necessary owing to irregularities on the surface of the same, to raise or
lower the outer edge so as to bring those irregularities to as level a position as
possible on the anvil so that they may be the more readily hammered out flat.
To accomplish this result, I arrange a system of levers by which the machine
is tilted to any degree necessary, and which I shall now describe.
In Figs. 1, & 2, of drawings is shewn a form of lever for the purpose of tilting
the whole machine from the base; and consists of a straight bar of iron a of
sufficient weight and length, and having a forked swan necked end C which
engages with pins f on the under side of one leg of trypod. The bar a rests on
the top of an iron bracket fulcrum b which is notched on the top to receive the
edge of bar to prevent it slipping off when being worked. On the inner member
of the base of said fulcrum bracket b the foot of the trypod rests when not in
use, a set screw d is tapped into the foot of trypod, and holds the bracket in

page_text: position, said set screw works in a slot g, in the upright member of the
fulcrum b. The lever is worked by the foot, or by a weight which may be moved
along the bar as may be required.
In Figs. 5 & 6 of drawings is shewn in plan and elevation another form of
lever also for the purpose of telting the whole machine from the base. In this
case the bar a may be of oblong cross section steel tube attached to a casting or
forging which forms the head of the lever, and rests on a four
legged fulcrum d by means of pin i which passes through the
head and rests in two half circular recesses on the top of fulcrum.
An iron loop e is attached to one foot of the trypod by means
of a pin the upper part of the loop e is passed over the end of lever c when
it is desired to tilt the machine. The operation is performed by moving the
weight along the bar a by the operator's leg j as shewn in Fig. 5.
The weight b has a small roller g', & g, arranged at each end of a groove
which runs its entire length corresponding to the thickness of the bar, these
allow the weight to be moved easily. Two pins f are tapped into side of weight
by which the operator moves it as required.
Fig. 7, shews the method of tilting the crosshead alone instead of the whole
machine; and this is the method I prefer to adopt.
The lever in this case is supported on a forked pin e, Fig. 7, screwed into one
foot of trypod and is worked by a weight made and arranged as in Fig. 5. A
connecting rod made of two pieces of steel tube and h telescoping into each
other is attached to the end of lever at f and to a forked bracket at I. The
tube g is attached to the lever at f and the tube h is attached to the forked
bracket m at I said forked bracket is screwed to the under side of the disc J and
works in a slot q in the plate k, Fig. 8, said slot acting as a guide to the
bracket when the lever is being worked.
When it is necessary to alter the height of the crosshead by moving the tube F
or G Fig. 1, the connecting rod of the lever is adjusted at the same time, by
lugs and screw at o, Fig. 7, as in the case of tubes F and G of the crosshead
Figs. 1, 3 & 4.
When using the machine to support circular saws while being gullited at the fly
press I insert a short piece of tube or similar article U into the open end of the
pin T Fig. 1. This addition to the pin T passes through the central hole of the
saw and prevents it from rolling off the castors of the crosshead.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the the same is to be performed, I declare that
what I claim is:-
1st. A new or improved stand for supporting circular saws and the like, while
being hammered or otherwise treated. Substantially as herein before described
and as illustrated by the accompanying drawings. The novelties of which are
2nd. A trypod, into which is tapped a tubular stem, or tubular telescoping
stem, having fly nut adjustment, hand wheel, to act as a lock nut, and handles
for turning stem, as herein before described and as illustrated by the accom-
panying drawings.
3rd. Discs made and attached substantially as described, and as illustrated by
the accompanying drawings.
4th. Hinged disc and plate for tilting the head of the machine only, sub-
stantially as hereinbefore described and as illustrated by the accompanying
drawings.
5th. Revolving cross head made of wood, malleable iron castings, or steel
tubing, with, or without extending arms. All these with castors and adjustments
substantially as hereinbefore described and as illustrated by the accompanying
drawings.
6th. A lever for tilting machine from its base having a weight, and four
legged fulcrum stand detached from the machine.

page_text: 7th. A lever for tilting machine from its base with fulcrum bracket attached
with screw to trypod substantially as described and as illustrated by drawings.
8th. A lever for tilting the head only attached to foot of trypod, having
tubular connecting rod, and lug adjustments, and weights, all these substantially
as herein before described and as illustrated by the accompanying drawings.
Dated this 16th day of February 1900.