Improvements in Machines for Setting Wagon Tires.
Year: 1894

page_text: Date of Application, 5th June, 1894
Complete Specification Left, 16th Aug., 1894--Accepted, 3rd Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Machines for Setting Wagon Tires.
A communication by JONATHAN BURNS WEST, of Rochester, in the County of
Monroe and State of New York, United States of America, Mechanical
Engineer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool and 6 Bank Street,
Manchester, both in the County of Lancaster and 323 High Holborn in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this
invention to be as follows:-
According to this invention, a stout steel ring is employed, rectangular in cross
section, considerably larger in diameter than the tires to be set, which is supported
in a horizontal position upon a frame. On the interior of this ring is placed close
together a series of short cylinders and pistons, the axes of all of which are radial
and in the middle plane of the ring.
The pistons are contiguous with and secured to the concave side of the ring, and
are stationary, while the cylinders are adapted to move through short distances in
radial directions upon the pistons. Each cylinder is formed with a flat horizontal
part, sectoral in form, resting upon the frame and extending inwardly toward the
centre of the ring. These flat parts together form a circular horizontal floor
somewhat below the middle plane of the ring, upon which floor the wheel and the
tire are placed in the act of setting the latter. In case the tire is large in diameter,
the inner ends of the cylinders bear directly against its convex surface; but for
smaller tires, sectoral blocks or "dies" of different widths are interposed between
the cylinders and the tire.
Pipes for conducting steam or other fluid under pressure are made to communicate
with the interiors of the respective cylinders, preferably through the ring, by
means of which the cylinders are pressed against the tire with sufficient force to
upset the metal and decrease its diameter sufficiently to firmly press the felloe of
the wheel. In some cases, steam under high pressure is caused to flow into the
cylinders; and, under other circumstances, water driven into the cylinders by an
ordinary hand or power force pump is used.
To take the warp or wind out of the wheel and the tire before the latter is set,
a circular straightening ring or spider is employed over the floor for the wheel to
press the latter firmly and truly against said floor. This spider is hinged to the
ring or to the frame so as to be swung upward out of the way while a wheel is
being put into or removed from the machine. A counter-weight is employed to
hold the spider normally up out of the way, and means, involving a hand lever,
for bringing the spider down upon the wheel and pressing it firmly there against.
To prevent an undue pressure from being brought against the periphery of the
wheel when the tire is being set upon it, which might injure the wheel, a gauge
lever, fulcrumed on an arm of the spider, is employed. The inner end of this lever
rests upon the wheel near the hub, its outer end being in contact with a spring-
actuated lever, which levers serve to instantly cut off the pressure from the
cylinders when a prearranged pressure upon the tire is reached.
Referring to the drawings hereunto aunexed :-
Figure 1 is a plan of the machine, the pump and other parts being omitted.
Figure 2 is a side elevation of the pump and associated parts.

page_text: Figure is a plan of the pump and associated parts.
Figure 4 is a vertical cross section of the rim of the spider through one of the
spring cages.
Figure 5 is a vertical cross section of the spider at the side of a spring cage.
Figure 6 is a plan of the frame and other parts, the upper parts of the machine
being omitted.
.
Figure 7 is a horizontal section through a part of one of the cylinders, on the
middle plane of the ring.
Figure 8 is an edge view of a portion of the ring, and a part of a power-
controlling lever.
Figure 9 is a side elevation of the machine without the pump, parts being.
sectioned substantially on the dotted line 99 in Figure 1, the arms of the spider F
being shown broken off irregularly.
Figure 10 is a vertical section of the rim of the spider near one of the arms.
Figure 11 is an edge view of a portion of the ring, showing the pipe connection
for a cylinder.
Figure 12 is a side elevation of the inner end of the gauge lever.
Figure 13 is a vertical section of a part of the frame and a cylinder, with minor
associated parts.
Figure 14 is a plan of a part of the gauge lever.
Figure 15 shows, in outline plan, three of the cylinders with dies in place.
Figure 16 is a diagram aiding to show the action of the hand lever and associated
parts for operating the spider.
Figure 17 is a view of a part of the hand lever and contiguous parts, seen as
indicated by arrow 17 in Figure 9.
Figure 18 shows the back of the main part of a piston.
Figure 19 is an outer end view of a cylinder.
Figures 4, 5, 7, 8, 10 to 15 inclusive, and 18 are drawn to scales larger than that
of Figures 1, 2, 3, 6, 9, 16, 17 and 19.
Referring to the parts shown-
•
B is the steel ring: A, the supporting frame: C, the cylinders and K, the
pistons.
Each piston is composed of an outer part 9 and an inner part h, Figure 7, with
disc of packing, i, between them. The part is formed with a ridge, r¹, to bed
into the packing. The pistons are held to the ring by pipes, m, threaded into the
inner parts h. These pipes, with openings o¹ through the inner parts of the pistons,
constitute portions of the passages for the fluid to the interiors f of the cylinders.
Each pipe is provided with a nut n, bearing against the outer surface of the ring,
which serves to hold the piston in place.
The flat parts of the cylinders constitute a floor upon which the wheel I rests,
as shown in Figure 9, when in position to have the tire set. These parts are
formed with radial slots c, Figures 6 and 13, through which bolts a pass, threaded
into the frame beneath. The slots are surrounded by depressed parts d, forming
ledges upon which sliding blocks e rest. The fastening bolts pass through these
blocks, and the construction is such that no part of the bolts or blocks projects
above the level of the floor.
The parts are further formed with circular grooves s, in which are placed
equalisers r, which are flat circular blocks, one being made rigid with each part
and lapping across the narrow space between two adjacent parts. These equalisers
serve to cause the cylinders to move uniformly or together when they are moved
radially forward or backward in the act of setting a tire.
An iron chamber E, Figures 6 and 9, is placed centrally within the frame to
primarily receive the fluid before it flows to the cylinders. This chamber is
connected by pipes o with the respective pipes m, thus forming continuous passages
from the interior of the chamber to the interiors of the cylinders.
A force pump D, Figures 2 and 3, of common construction serves to force water
through a pipe p into the chamber E, thence to the cylinders. An elevated

page_text: tank H is connected with the pump by pipe c¹, and with the pipe p by a pipe b',
leading through a cock d' of common kind. Now, when the passage through the
cock is open, the pump can effect no pressure in the chamber E, its action
serving only to force the water through the pipes 6' c¹ and back again to the pump.
But if the cock be closed, the, water will be forced through the pipe p into the
chamber E and thence to the cylinders.
A spiral spring is connected with the arm el of the cock, being held at the
other end by a rigid stud s'. The tendency of the spring is to draw the arm to
the left and open the cock. A horizontal lever f¹, pivoted at g', engaging the
pin of the arm e¹, serves to temporarily hold the cock closed. This lever is
formed with a notch and a vertical lever a, fulcrumed upon the ring B, has a
pin engaging said notch. The notch is formed with an inclined side, on account
of which, when the lower end of the lever a moves to the left, it raises the lever f',
see dotted positions of the parts. This releases the cock and allows the spring to
open it.
The lever is actuated by another lever in a
further on.
manner fully described
In case steam pressure is used instead of water, the pump and associated parts
are omitted, the steam being controlled in a manner similar to that in which the
water is controlled.
Wagon wheels and tires are frequently winding or out of a plane and need to be
trued before the tire is set. Figure 9 shows a wheel and a tire in the machine in
position to have the tire set; and to bring the parts into a plane, the straightening
spider F is brought down upon them, as shown. This spider consists of a rim or
flange t', and a raised central hub connected by radial arms, shown in plan in
Figure 1. A vertical pressing standard L, for the spider is seated at u', overhead,
and it comprises a hand lever N, by means of which the spider is operated. This
lever is pivoted, at v', between branches of the standard-see Figure 17-
constituting a toggle joint.
The standard is made alterable in length by means of an interposed barrel nut w³,
joined by right and left hand threads to the contiguous parts of the standard. By
turning this nut one way or the other, the pressure upon a wheel may be regulated.
An auxiliary nut serves to hold the barrel nut rigidly in place. The standard
is joined to the spider and to the bearing u¹, so as to remain connected with both.
The spider is connected with the ring B by a double-jointed hinge G, so that
it will readily adjust itself to the wheel in every instance.
A counter-weight O, connected with the spider by a cable 2¹, serves to hold the
When a wheel is put
spider tilted upward, as shown by dotted lines in Figure 9.
in place to have the tire set, the spider is brought down upon it by the attendant,
using the hand lever.
The latter is provided with a stop pin a², to bear against the standard when the
spider is down. This stop pin is in such relative position that, when in contact
with the standard, the pivot v is slightly forward of a straight line connecting the
two end-bearings of the standard.
This will appear by viewing Figure 16.
When the parts are in the positions shown, the standard is locked in position to
hold the spider down and will so remain until the lever is again raised by the
attendant.
For smaller wheels, inner rings, 62 and c², Figures 1, 5 and 10, are added, to
increase the bearing surface of the spider. These rings are pressed downward
by bolts d², threaded in the arms of the spider, and to hold them in place, spring
cages, and f, are employed, shown in Figures 4 and 5. The cages are bolted
to the ring b² so as to bear upon the rim t' of the spider, which prevents the ring
from falling below the rim. And, likewise, the spring barrels f¹ are made rigid
with the ring in positions to bear upon the ring for the same purpose.
Thus, the under surface of the two rings and the rim are maintained in a horizontal
plane.

page_text: If, at any time, the inner ring be not needed, it may be raised out of the way
by turning the contiguous bolts & upward in their bearings in the spider. This
being done, the spiral springs g² in the cages secured to said ring will lift the latter.
In a like manner, the ring may be lifted out of the way when not needed.
In operating upon smaller sized wheels, dies p', Figure 15, are interposed
between the inner surfaces of the cylinders and the tire. These dies are flat
castings, slightly thinner than the felloe of the wheel, so as not to receive the
pressure of the spider.
The gauge lever u, acting with the lever a to arrest the action of the cylinders,
is pivoted to an arm of the spider, it being longitudinally divided to straddle the
arm, as shown in Figures 1 and 14. Its inner end holds a cross rod w, to bear
upon the spokes of the wheel near the hub, and its outer end is provided with a
roller a', in position to bear upon the conical head z of the lever a. Now, when,
in setting a tire, the wheel is dished or raised at the middle on account of the
pressure of the cylinders, the roller a' moving down the conical head z will push
the lower end of the lever to the left, as appears in Figure 2, which will release
the cock and stop the flow of water to the cylinders. This instantly relieves the
wheel from further pressure by the cylinders.
*
The head is made adjustable upon its lever so that the amount of the dish of
the wheel may be regulated at pleasure.
The tire is set upon a wheel while pressed by the spider; and after the tire is
set, it and the wheel retain the straight form given them by the spider.
When the pressure is withdrawn from the cylinders, the latter are pushed back
from the wheel toward the ring by the spiral springs n Figure 13, held upon
inclined core rods m', secured to the cylinders with their lower ends resting in
bearings in the frame A.
In setting tires on new wheels, a wheel, with a tire in place upon it, is put into
the machine and the spider brought down upon it. The attendant then throws the
pin of the cock to the right, as appears in Figure 2, to catch in a notch at
the extreme end of the lever f¹. This closes the cock and turns the pressure from
the pump into the cylinders, driving them inward. When the pressure upon the
tire dishes the wheel to a pre-arranged degree, the gauge lever acts to open the
cock, as above described, and the operation ceases. When the springs n' push
the cylinders back, the water flows back from the cylinders to the tank.
When the tires of wagons in use are reset, the wheels are removed successively
from the wagon and operated upon by the machine as in the case of new work.
Dated this 4th day of June 1894.
'COMPLETE SPECIFICATION.
Improvements in Machines for Setting Wagon Tires.
A communication by JONATHAN BURNS WEST, of Rochester, in the County of
Monroe and State of New York, United States of America, Mechanical
Engineer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool, and 6, Bank Street, both in
the County of Lancaster and 323 High Holborn in the County of Middlesex,
Civil Engineer, 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:-
According to this invention a stout steel ring is employed rectangular in cross
section, considerably larger in diameter than the tires to be set, which is supported
in a horizontal position upon a frame. On the interior of this ring is placed close

page_text: together a series of short cylinders and pistons the axes of all of which being
radial and in the middle plane of the ring.
The pistons are contiguous with and secured to the concave side of the ring, and
are stationary, while the cylinders are adapted to move through short distances in
radial directions upon the pistons. Each cylinder is formed with a flat horizontal
part, sectoral in form, resting upon the frame and extending inwardly toward the
center of the ring. These flat parts together form a circular horizontal floor
somewhat below the middle plane of the ring, upon which floor the wheel and the
tire are placed in the act of setting the latter. In case the tire is large in
diameter the inner ends of the cylinders bear directly against its convex surface;
but for smaller tires sectoral blocks or
*dies
of different widths are interposed
between the cylinders and the tire.
Pipes for conducting steam or other fluid under pressure are made to communicate
with the interiors of the respective cylinders, preferably through the ring, by
means of which the cylinders are pressed against the tire with sufficient force to
upset the metal and decrease its diameter sufficiently to firmly press the felloc of
the wheel. In some cases steam under high pressure is caused to flow into the
cylinders; and under other circumstances water driven into the cylinders by an
ordinary hand or power force pump is used.
To take the warp or wind out of the wheel and the tire before the latter is set
a circular straightening ring or spider is employed over the floor for the wheel to
press the latter firmly and truly against said floor. This spider is hinged to the
ring or to the frame so as to be swung upward out of the way while a wheel is
being put into or removed from the machine. A counter-weight is employed to
hold the spider normally up out of the way, and means, involving a hand
lever, for bringing the spider down upon the wheel and pressing firmly there
against.
To prevent an undue pressure from being brought against the periphery of the
wheel when the tire is being set upon it, which might injure the wheel, a gauge
lever, fulcrummed on an arm of the spider is employed. The inner end of this
lever rests upon the wheel near the hub, its outer end being in contact with a
spring-actuated lever, which levers serve to instantly cut off the pressure from the
cylinders when a prearranged pressure upon the tire is reached.
Referring to the drawings accompanying the Provisional Application,
Figure 1 is a plan of the machine, the pump and other parts being omitted.
Figure 2 is a side elevation of the pump and associated parts.
Figure 3 is a plan of the pump and associated parts.
Figure 4 is a vertical cross section of the rim of the spider through one of the
spring cages.
Figure 5 is a vertical cross section of the spider at the side of a spring cage.
Figure 6 is a plan of the frame and other parts, the upper parts of the machine
being omitted.
Figure 7 is a horizontal section through a part of one of the cylinders, on the
middle plane of the ring.
Figure 8 is an edge view of a portion of the ring, and a part of a power
controlling lever.
Figure 9 is a side elevation of the machine without the pump, parts being
sectioned substantially on the dotted line 9 9 in Figure 1, the arms of the spider, F
being shown broken off irregularly.
Figure 10 is a vertical section of the rim of the spider near one of the arms.
Figure 11 is an edge view of a portion of the ring, showing the pipe connection
for a cylinder.
Figure 12 is a side elevation of the inner end of the gauge lever.
Figure 13 is a vertical section of a part of the frame and a cylinder, with minor
associated parts.
Figure 14 is a plan of a part of the gauge lever.
Figure 15 shows. in outline plan, three of the cylinders with dies in place.

page_text: Figure 16 is a diagram aiding to show the action of the hand lever and associated
parts for operating the spider.
Figure 17 is a view of a part of the hand lever and contiguous parts, seen as
indicated by arrow 17 in Figure 9.
.
Figure 18 shows the back of the main part of a piston.
Figure 19 is an outer end view of a cylinder.
Figures 4, 5, 7, 8, 10 to 15 inclusive, and 18, are drawn to scales larger than that
of Figures 1, 2, 3, 6, 9, 16, 17 and 19.
Referring to the parts shown, B is the steel ring, A the supporting frame,
C the cylinders and K the pistons. Each piston is composed of an outer part, 9,
-and-an inner part, h, Figure 7, with disc of packing, i, between them. The part h
-is-formed with a ridge,, to bed into the packing. The pistons are held to the
ring by pipes, m, threaded into the inner parts, h. These pipes, with openings of
through the inner parts of the pistons, constitute portions of the passages for the
fluid to the interiors f, of the cylinders. Each pipe is provided with a nut, n,
bearing against the outer surface of the ring, which serves to hold the piston in
place.
The flat parts, 1, of the cylinders constitute a floor upon which the wheel I,
rests, as shown in Figure 9, when in position to have the tire set. The parts I are
formed with radial slots, c, Figures 6 and 13, through which bolts, a, pass, threaded
into the frame beneath. The slots are surrounded by depressed parts, d, forming
ledges upon which sliding blocks, e, rest. The fastening bolts pass through these
blocks, and the construction is such that no part of the bolts or blocks project
above the level of the floor.
The parts are further formed with circular grooves, s, in which are placed
equalizers, 1, which are flat circular blocks, one being made rigid with each part
and lapping across the narrow space between two adjacent parts. These equalizers
serve to cause the cylinders to move uniformly or together when they are moved
radially forward or backward in the act of setting a tire.
An iron chamber, E, Figures 6 and 9, is placed centrally within the frame to
primarily receive the fluid before it flows to the cylinders. This chamber is
connected by pipes, o, with the respective pipes m, thus forming continuous
passages from the interior of the chamber to the interiors of the cylinders.
A force pump, D, Figures 2 and 3, of common construction serves to force water
through a pipe, p, into the chamber E, thence to the cylinders. An elevated
tank, H, is connected with the pump by pipe c', and with the pipe p by a pipe, b',
leading through a cock, d', of common kind. Now when the passage through the
cock is open the pump can effect no pressure in the chamber E, its action serving
only to force the water through the pipes 6 c¹ and back again to the pump. But
if the cock be closed the water will be forced through the pipe p into the
ehamber E and thence to the cylinders.
.
A spiral spring, ", is connected with the arm e¹, of the cock, being held at the
other end by a rigid stud, s¹. The tendency of the spring is to draw the arm to
the left and open the cock. A horizontal lever, f¹, pivoted at 9', engaging the
pin, of the arm e¹ serves to temporarily hold the cock closed. This lever is
formed with a notch, l, and a vertical lever a, fulcrummed upon the ring B, has a
pin, k, engaging said notch. The notch is formed with an inclined side, on account
of which when the lower end of the lever a moves to the left, it raises the lever f
see dotted positions of the parts. This releases the cock and allows the spring to
open it.
The lever a is actuated by another lever, u, in a manner fully described
further on.
In case steam pressure is used instead of water the pump and associated parts
are omitted, the steam being controlled in a manner similar to that in which the
water is controlled.
Wagon wheels and tires are frequently winding or out of a plane and need to
be trued before the tire is set. Figure 9 shows a wheel and a tire in the machine

page_text: position to have the tire set; and to bring the parts into a plane the
traightening spider, F, is brought down upon them, as shown. This spider
consists of a rim or flange, t', and a raised central hub connected by radial arms,.
shown in plan in Figureyl. A vertical pressing standard, L, for the spider is
seated at u¹ overhead, and it comprises a hand lever N, by means of which the
spider is operated. This lever is pivoted, at v¹, between branches of the standard-
see Figure 17-constituting a toggle joint.
The standard is made alterable in length by means of an interposed barre
nut, w¹, joined by right and left-hand threads to the contiguous parts of the
standard. By turning this nut one way or the other the pressure upon a wheel
may be regulated. An auxiliary nut, a, serves to hold the barrel nut rigidly in
place. The standard is joined to the spider and to the bearing u¹ so as to remain
connected with both.
The spider is connected with the ring B by a double-jointed hinge, G, so that it
will readily adjust itself to the wheel in every instance.
A counter-weight, O, connected with the spider by a cable, 2', serves to hold the
When a wheel is put
spider tilted upward, as shown by dotted lines in Figure 9.
in place to have the tire set the spider is brought down upon it by the attendant,
using the hand lever.
The latter is provided with a stop pin, a², to bear against the standard when
the spider is down. This stop pin is in such relative position that when in contact
with the standard the pivot is slightly forward of a straight line connecting the
two end-bearings of the standard.
This will appear by viewing Figure 16.
When the parts are in the positions shown, the standard is locked in position to
hold the spider down and will so remain until the lever is again raised by the
attendant.
For smaller wheels inner rings, and c² are added, Figures 1, 5 and 10, to
increase the bearing surface of the spider. These rings are pressed downward by
bolts, 2, threaded in the arms of the spider, and to hold them in place spring
The cages are bolted to
cages, e2 and 2, are employed, shown in Figures 4 and 5.
the ring so as to bear upon the rim t¹ of the spider, which prevents the ring from
falling below the rim. And, likewise, the spring barrels are made rigid with
the ring ² in positions to bear upon the ring 62, for the same purpose. Thus the
under surface of the two rings and the rim are maintained in a horizontal plane.
If at any time the inner ring be not needed it may be raised out of the way
by turning the contiguous bolts d upward in their bearings in the spider. This
being done the spiral springs g2 in the cages secured to said ring will lift the latter.
In a like manner the ring 2 may be lifted out of the way when not needed.
In operating upon smaller sized wheels dies, p¹, Figure 15, are interposed
between the inner surfaces of the cylinders and the tire. These dies are flat
castings, slightly thinner than the felloe of the wheel so as not to receive the
pressure of the spider.
Now, when,
The gauge lever u, acting with the lever a to arrest the action of the cylinders,
is pivoted to an arm of the spider, it being longitudinally divided to straddle the
Its inner end holds a cross rod, w, to hear
arm, as shown in Figures 1 and 14.
upon the spokes of the wheel near the hub, and its outer end is provided with a
roller, a', in position to bear upon the conical head, z, of the lever .x.
in setting a tyre, the wheel is dished or raised at the middle on account of the
pressure of the cylinders, the roller a¹ moving down the conical head will push
the lower end of the lever x to the left, as appears in Figure 2, which will
release the cock and stop the flow of water to the cylinders. This instantly
relieves the wheel from further pressure by the cylinders.
The head z is made adjustable upon its lever so that the amount of the dish of
5 the wheel may be regulated at pleasure.
The tire is set upon a wheel while pressed by the spider; and after the tire
is set it, and the wheel, retain the straight form given them by the spider.

page_text: When the pressure is withdrawn from the cylinders the latter are pushed back
from the wheel towards the ring by the spiral springs n', Figure 13, held upon.
inclined core rods, m³, secured to the cylinders with their lower ends resting in
bearings in the frame A.
In setting tires on new wheels a wheel, with a tire in place upon it, is put into
the machine and the spider brought down upon it. The attendant then throws
the pin, ', of the cock to the right, as appears in Figure 2, to catch in a notch
at the extreme end of the lever f¹. This closes the cock and turns the pressure
from the pump into the cylinders, driving them inward. When the pressure upon
the tire dishes the wheel to a prearranged degree the gauge lever acts to open the
cock, as above described, and the operation ceases. When the springs n¹ push the
cylinders back the water-flows-back-from-the cylinders to the tank.
When the tires of wagons in use are reset the wheels are removed successively
from the wagon and operated upon by the machine as in the case of new work.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, 1 declare that what I claim is :-
1. A machine for setting wagon tires, comprising a frame and a rigid base ring
supported thereon, a series of pistons secured to the inner face of said base ring,
radially movable cylinders within the ring supported by the frame and co-acting
with the pistons, and a pump or similar means for supplying a fluid under pressure
to the interiors of the cylinders to urge the latter toward the center of the ring.
2. A machine for setting wagon tires, having a frame holding a rigid base ring,
a series of stationary pistons on the interior of the base ring, radially movable
cylinders, within the ring, held by the frame to co-act with the pistons, a floor for
the wheel, a pump and pipes connecting it with the spaces within the cylinders, a
cock for controlling the flow of fluid from the pump, an arm or lever adapted to
bear upon the spokes of the wheel, and gearing connecting said arm or lever with
the cock whereby the dish of the wheel operates the cock to control the flow of the
water.
3. A machine for setting wagon tires, comprising a frame and a rigid base ring
held thereby, a series of stationary pistons on the inner face of the base ring,
radially movable cylinders within the ring co-acting with the pistons, formed with
inward projections to receive the wheel, said projections being provided with
equalizers to cause the cylinders to move uniformly, and a pump or similar means
to force fluid into the interiors of the cylinders.
4. A machine for setting wagon tires, comprising a frame and a rigid base ring
supported thereon, a series of pistons secured to the inner face of said base ring,
radially movable cylinders within the ring supported by the frame and co-acting
with the pistons, and a pump or similar means for supplying a fluid under pressure
to the interiors of the cylinders to move the latter against the tire, and springs to
push the cylinders back toward the base ring.
5. A machine for setting wagon tires, comprising a frame and a rigid base ring
held thereby, a series of stationary pistons on the inner face of the base ring,
radially movable cylinders within the ring, co-acting with the pistons, formed with
inward projections to receive the wheel, a straightening ring or spider over the
wheel with standard and lever to press it upon the wheel, and a pump or similar
means for supplying a fluid under pressure to the interiors of the cylinders.
6. A machine for setting wagon tires, comprising a frame and a rigid base ring
held thereby, a series of stationary pistons on the inner face of the base ring,
radially movable cylinders within the ring, co-acting with the pistons, formed with
inward projections to receive the wheel, a straightening ring or spider over the
wheel with standard and lever to press it upon the wheel, and a pump or similar
means for supplying a fluid under pressure to the interiors of the cylinders, and a
multiple-jointed hinge connecting the spider with the base ring.
7. A machine for setting wagon tires, comprising a frame and a rigid base ring

page_text: held thereby, a series of stationary pistons on the inner face of the base ring,
radially movable cylinders within the ring, co-acting with the pistons, formed with
inward projections to receive the wheel, a straightening ring or spider over the
wheel with lever and standard to press it upon the wheel, and a pump or similar
means for supplying a flaid under pressure to the interiors of the cylinders, the
spider being provided with removable concentric rings with screws and springs to
control them.
Anost 1894
WM. P. THOMPSON & Co.,
Agents.