Improvements in or in connection with Glass Working Apparatus.
Year: 1899

page_text: Date of Application, 7th Mar., 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in or in connection with Glass Working Apparatus.
A communication by IRVING WIGHTMAN COLBURN, of 531, Laskey Avenue, Toledo,
in the County of Lucas, in the State of Ohio, United States of America,
Electrical and Mechanical Engineers.
I, GEORGE CECIL DYMOND, M. Inst. M.E., of the Agency for Foreign Tatent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, 118, New Street, Birmingham, in the County of War-
wick, and 322, High Holborn, in the County of Middlesex, Patent Agent, 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 follow-
ing statement;-
This invention relates to a novel means or apparatus for forming and manu-
facturing articles of glass, such as have heretofore been made by blowing in
connection with sectional molds, either purely by manual process or in conjunction
with machinery. By the present means molds are dispensed with and the article
formed by means of slickers, fingers, or modellers, by which the plastic glass is
ironed. kneaded and modelled into shape as it revolves in contact with said slickers,
or fingers, or as the latter are revolved around the plastic glass, or both in con-
junction. The action thus differs radically from that which takes place when
sectional molds are employed, as in the prior practice of machine glass working.
with the advantage of the avoidance of fins, striæ and wrinkles on the surface of
the glass due to contraction in contact with a metallic chill surface, and torsion
strains and cleavage lines in the glass, along which fracture is liable to occur in
articles produced by the old method. Owing to the kneading and modelling
action of the fingers or slickers larger articles than hitherto practicable by
machinery may be executed, and by means of labor of only ordinary skill in
contrast with the highly skilled labor hitherto found indispensable.
In the drawings forming a part of this specification,
Fig. 1 is a side elevation of the machine, partly in section.
Fig. 2 is an end elevation of the machine partly in section.
Fig. 3 is an end section of top frame of the machine, showing the tracks on
which upper car wheels run, also the cam tracks on which the flange wheels run
which operate the rheostat. the air discharge regulating valve, and the device
which lifts the air or blow iron spindle.
Fig. 4 is a transverse section of the bottom frame of the machine, showing
the tracks on which wheels of the bottom slicker cars run, also the cam track
on which runs the flange wheel that operates the lifting cone which works the
slickers in and out. It also shows the bottom water well, and sprinkling housing,
and sprinkling or wetting pipes.
Fig. 5 is a plan view of the base of the machine, showing plain tracks and cani
tracks, water well, and two shafts and two upright columns.
Fig. 6 is a plan view of the top frame of the machine, showing tracks for upper
cars, and cam tracks, also columns and upright shafts; also upper water tank.

page_text: Fig. 7 is an end elevation partly in section showing the bottom. slicker car.
Fig. 8 is a plan of bottom slicker car partly in section, showing also a portion
of cable wheel, cable, and means of connection.
Fig. 9 is an end elevation partly in section showing operating mechanism for
revolving the bottom part of slickers around glass bulb.
Fig. 10 (Sheet 3) is a view of a portion of the forked lever for actuating clutch
mechanism for locomotive purposes.
Fig. 11 is a front elevation, partly in section, of the top motor and air car.
Fig. 12 (Sheet 6) is an end elevation, partly in section, of top motor car, show-
ing air regulating device, spindle lifting device, and rheostat arm lifting device;
also knocker valve for shutting off or on the air supply from flexible shaft; also
attachment to driving wire cable.
Fig. 13 (Sheet 5) is a plan view of top motor car.
Fig. 14 (Sheet 6) is an end elevation, partly in section, showing driving power
device.
Figs. 15, 16, 17 and 18 (Sheet 3) are views showing slickers with attached parts,
in various positions.
Fig. 19 (Sheet 3) is a plan view illustrating slickers when constructed so as to
form the bottom of an article with the same slicker.
Fig. 20 is a vertical sectional view of said slicker.
Figs. 21 and 22 (Sheet 4) are plan and vertical sectional views showing bottom
former or slicker for giving shape to bottom of glass article.
Figs. 23, 24 and 25 (Sheet 3) are views showing device for making a locomotive
car out of the machine for convenience in moving it from place to place.
Fig. 26 (Sheet 7) is plan of the lower cable operating device, showing arrange-
ment for operating central shaft by impulses 1 of a turn at an impulse.
Figs. 27 and 28 are views in transverse and longitudinal section showing valve
for shutting off and turning on the air, carried on top motor car.
Fig. 29 (Sheet 7) is a side view of the starting, and stopping, and speed regu-
lating electric rhéostat.
Figs. 30 and 30* (Sheet 3) show the upper end of blow iron in plan and vertical
section.
Fig. 31 (Sheet 7) is a vertical section of one of the bearings for blow iron
to run in, showing the removable composition metal bushing.
Fig. 32 (Sheet 7) is a plan view of same bearing or support.
Fig. 33 (Sheet 7) is an elevation of a portion of the blow iron, showing enlarge-
ment for supporting same in the bearing for the blow iron on which it turns or
revolves when in operation.
Fig. 34 (Sheet 7) is a longitudinal section (in part full) of the commutator
device for carrying electric current to the machine without twisting the wires
when the machine is in operation.
Fig. 35 (Sheet 7) is a transverse section of the same electric commutator.
Like numerals of reference indicate like parts on the several drawings.
Referring to the drawings 1 represents the base part or bottom frame of the
machine. The base 1 is the frame upon which all the machine is assembled. 2
is the top part or frame plane, supported on base 1 by columns 3,3. On base 1
are two upright bosses or extended hubs into which are inserted and preferably
screwed the said columns. These columns are made in two pieces 3, 5, 3, 6 with
couplings 70 made fast to columns 3 at 71. The upper portions 5, 6 of said
columns have screw-threads cut on them at 72, and hand wheels 7, 7 screw-
threaded inside fitting the same, to provide for raising or lowering the top part
or frame plane 2 to accommodate different kinds of work in process in the machine.
The base 1 (see Fig. 5) has three tracks running around the same. Two 8, 8 are
level tracks on which run the car wheels of car 9. The middle track or cam
track 10 is of varying height according to the duty that it is expected to perform.
This cam track is preferably formed of light bar iron or steel, and made remov-
able and adjustable, so that it can be easily changed and a different one put in

page_text: its place. Said track is held in position with suitable means for adjustment and
the variations of level are fashioned in accordance with the work in hand. In
the lower part of the base 1 is the well 11 for holding water, having a shaft 73
on which the pump 12 is placed for pumping water to the tank 13 on top of the
machine. 15 is a long metal housing supported on base 1. In this housing the
slickers get a most complete wetting and cooling, and whatever water falls out-
side the main water basin or between the tracks at once finds its way back to
the tank 11. There are holes or passages 17, (Figs. 1 and 4) under the tracks 8, 8
to accommodate the return of such water.
The object of the housing 15 above referred to is to prevent water from escaping
outside the machine while wetting and cooling the slickers. In this housing
are located the sprinkling pipes 14, the water to same coming from the tank 13
on top of the machine, through pipe 16. The supply is controlled by valve 18
as to quantity, and may be shut of entirely if desired. There is a suction pipe 19
connecting to the pump 12. From pump 12 the supply passes through pipe 20
to top tank 13. The pump is operated from the motor 22 by endless belt 23.
In case of any surplus water accumulating in top tank 13, the same is returned
to well 11 through overflow pipe 21.
The base 1 is supported for convenience of moving on truck wheels 44, 38,
wheel 44 being the steering wheel. There is a provision for locomotion, which
will be described later.
On said base 1 are also mounted the boxes 20, 26 in which run the vertical
rotary shafts 27, 28. Shaft 28 derives rotary motion from a motor 22 on
bracket 24, borne on column 3 to the right. This motor, preferably electric,
derives its motion from an outside source of electric energy, the wires from which
(not shown) enter at a fuse block or cut out 74 on the side of the machine (Fig. 2),
preferably enclosed in the form of an insulated flexible cable. From this cut-
out the wires pass under the machine, thence up inside the column 3 at the rear
of the machine which has a passage provided for the purpose, and thence to the
motor 22. A branch of the circuit which energizes the armature leads through
the rheostat 25, the function of which is to govern the starting, stopping and
controlling of the current.
Said motor communicates its motion to shaft 28 through train of gears 29.
Shafts 27, 28 are connected together by means of endless ropes, belts, chains or
wire cables 30, 31 passing around flanged pulleys 32, 33 and rotate together at
equal speeds. At the foot of shaft 28 is a bevel pinion 34, intermeshing with
bevel gears 35, 36 on the shaft 37 of truck wheels 38. These bevel gears are
mounted with a spline 43, so as to have longitudinal motion on the shaft, and
are controlled by a lever 39 pivoted at 40, carrying rings 41 which engage grooved
collars 42 on the said bevel gears, by which means the gears can be shifted to
the right or left as desired. The object is to give locomotion to the machine in
any direction, by power derived from the electric motor 22.
As shown in Fig. 23 the handle 39 is in a perpendicular position, in which
position the gears 35, 36 and 34 are not in mesh. By moving this handle or
lever 39 to the left gears 34 and 35 engage, and the machine takes motion and
travels slowly on the floor. By moving the handle the other way the gears 34
and 36 mesh and the machine takes motion in the opposite direction. The
machine is governed by means of the hand wheel 47, the shaft 46 and the train
of gearing 45 controlling the floor wheel 44. The movement is slow and readily
under control. The direction back or forward is controlled by the lever 39, the
direction to the right or left by hand wheel 47 and the speed of the machine about
the floor is regulated by the rheostat 25 which governs the speed of the motor 22.
When the machine is in its position in front of a glass pot in the furnace, the
duty of the motor 22 is to operate the shaft 28 as above described, and this shaft
communicates motion and power to the shaft 27 by means of the wire ropes or
cables illustrated at 31 and 30.
These wire ropes or cables have also the duty of carrying around the frame of

page_text: the machine pairs of cars, viz: the motor car 48 on the top frame and the slicker
car 9 on the bottom frame. These cars are attached to the cable as follows: The
car 9 is held with clamp 49 (Fig. 8) and has fingers or steadying arms 50 which
when the car is on the straightway part of its course come into contact with the
cable and prevent vibrations which might occur from any hitching along the
track. Similar fingers may be applied to the top motor car and are, in practice,
but they are not shown in the drawings. The cable wheel 32 has parts cut away
in same at 51 which permits the clamps which hold the motor and slicker cars
to pass around the wheel smoothly. It also provides for the take up coupling 52
and the knocker or striker clamps 53 to pass in the same manner. The top cable
wheels and lower ones are of similar construction, and have like duties to per-
form, with the exception of the striker clamps.
On the tracks 8, on base 1, run the slicker cars, shown in detail on Sheet 4,
Figs. 7 and 8. These cars consist of a base portion 9 mounted on truck wheels 54,
with means 49 for clamping the same to cable 30 and an upper portion 55 sup-
ported on the base portion by means of ball bearings 56 on a circular trackway,
so as to rotate freely by means hereafter to be described. This upper portion
carries the slickers 57 radially arranged so as to have free radial movement to-
wards and from the center, while the upper portion 55 which carries them is
rotating. The outward movement of the slickers is accomplished by means of
cone 58 bearing against rollers 59 attached to the slickers. Cone 58 is operated
by means of the adjustable and exchangeable cam-track 10 whose upper edge is
varying in accordance with the work required of it. This cam-track 10 raises
and lowers the flange wheel 60 running on the same. Said wheel is borne in a
hanger on top of which is spindle 61, which turns loosely in the stem of the
cone 5S and takes end thrust upon ball bearings 62. As the slickers revolve
These
around the plastic glass this wheel remains stationary, simply traveling around
with the machine on the cam-track 10 and lifting and lowering the cone 58 in
accordance with the rises and falls in the cam-track 10. The lifting of the cone 58
pushes back the rolls 59, which are attached to the slicker supports 63.
slicker supports G3 have slots 64 formed in same which guide the said supports
as they advance or retreat from the glass. The slickers may be of metal or any
other material which will stand the temperature and friction. They are hel
up to the plastic glass by the springs 65 and the regulation of the advance and
retreat is governed by the formation of the cam-track 10. The slickers 57 are
slotted at 66 as a means of adjustment, and held in position by screw and washer 67.
The slickers are of the shape illustrated in Figs. 15-18 inclusive, Sheet 3, and
are preferably rounded at their edges as shown in Fig. 16, and their duty is to
slick, smooth, model or iron the plastic glass into the required shape as they come
in contact therewith. In practice they are preferably paste covered on their con-
tact faces.
The slickers shown in Figs. 21 and 22 are designed for forming the bottom, of
a glass article, as shown at 68. They can be of any shape in the reverse that is
desired to be imparted to the article of plastic glass in process of formation. This
slicker is held in position by arms 69, centrally beneath the rotating slickers.
Figs. 19 and 20 represents a means for making the same set of slickers fashion
and shape the plastic glass at bottom as well as at the sides, but is adapted only
for plain bottom or straight bottom glass work.
The frame plane 2 also bears trackways 75 on which run the upper motor cars 48.
These cars are impelled by the same power and at the same speed as bottom
cars 9 by means of cable 31 driven from shaft 28 and passing over pulleys 33.
The said cars are connected to said cable by means of connecting arms 76 and
clamps 77. They are thus designed to move synchronously with the bottom cars?
and remain directly over the same. Between each top and bottom car extends
the vertical connecting rod 78 firmly attached to each car at the sides. This rod
carries horizontal arms 79 having at the extremities thereof the blow-iron sup-
ports or bearings 80 for sustaining the blow-iron 81 in a vertical position during

page_text: the entire circuit of the cars. This bearing 80 (Fig. 31) is cone-shaped, so as
to retain the blow-iron, which has a reverse shaped cone on same. Said bear-
ing 80 has an insertible composition piece or bushing 82 for renewal in case of
wear. This serves to keep the blow-iron in position and for a bearing. There
are two for each pair of cars, as shown in Fig. 1. Figs. 30 and 30' represent a
method of constructing the end of the blow-iron so as to fit the clutch for driving
the same by means of cross pins 83. This admits of no difficulty in positively
catching the spindle and driving the blow-iron. In the air spindle is a clutch 84.
This clutch has the proper shape to engage with the blow-iron. There is a flexible
washer 85 in the bottom of air spindle clutch which makes the blow-iron contact
with the clutch air tight.
The blow-irons 81 are removable insertible and hollow, and bear on their lower
ends the bulb of plastic glass to be modeled by the slickers during the cycle of
operation. This blow-iron receives rotary motion and a supply of air for expand-
ing the glass bulb by means presently to be described. There also extends from
the upper to the lower car the vertical rotary shaft 86, whose office it is to impart
rotary motion to the revoluble member 55 of the slicker car 9, by means of gear
wheel 87 meshing into circular rack 88 on the periphery of revoluble member 55.
The shaft 86 is. run in trunnion supported boxes 89 attached to both top and
bottom cars so as to be preserved at all times in alignment. It is supported upon
ball bearings.
Besides the car tracks 75 there are borne on the upper frame plane 2, three
adjustable and exchangeable cam-tracks 90, 91 and 92, whose functions are similar
to those of cam-track 10 on base-frame 1. These cam-tracks have their upper
edges formed of varying heights in conformity with the functions which they
have to perform. The function of cam-track 90 is to automatically regulate the
degree and time of the rising and falling of the blow-iron spindle 93 which
communicates with the vertical blow-iron 81 and supplies rotary motion
and air thereto. The function of the cam-track 91 is to automatically regulate
the air pressure of the air supply furnished to the said spindle, and the function
of the cam-track 92 is to automatically control the rheostat arm of the rheostat 9+
which regulates the amount of current supplied to the armature of the electric
motor 95. The said motor 95 blow-iron spindle 933 and rhéostat 94 are all carried
on the upper motor car. The blow-iron spindle receives its supply of air from
an external source presently to be described. The said spindle receives its rotary
motion from motor 95 gear 96 and 97 shaft 86, sprocket wheels 98 and 99. The
spindle is splined in the sprocket wheel 99 so as to admit of rising and falling
motion while rotating, and said sprocket wheel 99 is confined by collar 100 and
groove 101 from following the rising movement of the spindle.
First, as to cam-track 92 the armature of the motor 95 is supplied with current
from an external source through the rheostat 94. The field magnets of the motor
are supplied with a constant current and remain at all times charged while the
machine is in operation. The rheostat 94 when the motor car arrives at the place
where the glass is to be put into the machine, automatically turns on a limited
supply of current to armature, thus at once starting the machine gradually under
automatic regulated speed by means of the cam-track 92 and flange wheel 102,
increasing the speed of the motor until the operation is completed, at which time
the wheel 102 drops and the current is shut off from the motor armature until
next cycle is started upon. Second, as the cam-track 91 on which runs the flange
wheel 103. The duty of this cam-track and wheel is to admit of a discharge of
air from an air box 104 borne on the motor car 48. This air box 104 receives
its supply of air through a flexible pipe 105 and air pipe 106 with a little surplus
capacity for carrying air over what is actually required for the largest work to be
done with the machine. The diameter of the flexible air pipe 105 and pipe 106
determines the carrying capacity in air. From this air box 104 the air has two
paths open to it, one through chamber 104 to chamber 107 in column 108, through
the cross holes 100 in blow iron, air spindle to central passage 110 in centre. of

page_text: blow-iron air spindle. Thence to plastic glass. Were it not for the escape air
valve 111 too much air pressure would at once be applied to the delicate plastic
glass. Therefore this air escape valve 111 is provided. When air is admitted
to the air box 104 through the valve 112 at top of air pipe 106 the spindle is in
the air box exposing its opening 113 to the incoming air, offering a free second
path for same through this spindle to the outlet slot 114. As the work of form-
ing the plastic glass commences, but very little air pressure passes to the inside
of the plastic glass, as the escape air valve, 111 is keeping this pressure down.
As the forming of plastic glass proceeds in the car below, this valve spindle 111
gradually, or otherwise if desired, descends by the action of cam-track 91 and
roller 103 thus decreasing the size of the discharge opening into this spindle until
the air passage is shut off entirely, or to the extent desired, as the required pres-
sure may demand, depending upon the work in hand. This method of regulating
air pressure is positive and is capable of giving puffs or impulses, sudden or
gradually increasing as the case may require, by simply having the cam-track
arranged accordingly. It can closely imitate the pressure given by a skilled glass
blower when operating difficult work, blowing same by lung pressure. This
enables the air pressure to be governed absolutely according to the work that is
to be done with the machine.
Thirdly, as to the cam-track 90. The duty of this cam-track is to operate the lift-
ing and lowering of the blow-iron spindle, as before said. The blow-iron spindle
is shown (Fig. 12) at its highest position. Immediately after the plastic glass
is put into the machine, the spindle automatically lowers, and engages the
clutch 84 with the end of the blow-iron. There it remains, imparting to the
attached blow-iron rotary motion and regulated air until the operation is com-
pleted, when it automatically lifts from off the blow-iron as governed by the for-
ination of the cam-track, releasing said blow-iron, and permitting it to be taken
out from the machine.
On base 1 is also borne the hub or boss 115 in which is journaled the central
shaft 116, passing up through the frame plane 2. This shaft is solid throughout
its entire length, and has ball-bearings for end thrust at 117. At its top is the air
box 118 carrying the extended flexible pipe 105 one for each car. Into the top
of the said air box, and in axial alignment with the rotary shaft 116, extends the
vertical rotary air pipe 119, communicating with the air-pipe 120, which may be
flexible, leading to an external source of air supply under pressure. 121 is a com-
mutator presently to be described, forming the connection between the rotary air
pipe 119 and the stationary air supply pipe 120. The shaft 116 is stationary most
of the time, but receiving periodical impulses. In the present machine it is
arranged to give this shaft eight impulses for each operation, or during one com-
plete cycle of the cars. This is accomplished by the knockers 53 (Fig. 26)
striking against the extended arms 122, by which each time they come in contact,
they advance the wheel of a revolution. The object of this operation is to at
all times have the flexible air pipe 105 approximately in line with the motor
car 48. The duty of this flexible pipe is to convey air under pressure to the
motor car, from air supply pipe 120, and also to carry electric wires to the motor
on said cars by the interposition of the commutator 121, without which, or some
similar device, the air pipes and electric wires would become entangled while tho
machine was making one cycle.
This plan admits of air being supplied to the cars under the same pressure at
all times, at the same time carrying the wires to the moving cars without any
danger of breakage or strain. The flexible pipes pass over a round elbow 123
thereby preventing any sharp bends in them whether they are in the position
shown in Fig. 1 or 2. 123 are lever arms attached to the flexible air pipes by
means of links 125 and elbows 123. These lever arms are always kept taut through
the tension springs 126, thus at all times keeping the air pipes in position and
preventing wear or abrasion. The air pipe 105 communicates with vertical air
pipes 106 on the motor car, and supplies air to the valve 112, Figs. 27 and 28.

page_text: The duty of this air valve is to open as soon as the plastic glass is put into the
machine, and to close upon the operation being completed. This is accomplished
through the striker pin 127 which is adjustable upon the upright shaft 128. This
striker pin engages with the star wheel 129 on the air valve shaft. This star
wheel has eight arms. The air valve has four, openings, (see Figs. 27). The
star wheel upon receiving one impulse, moves until an opening in same is opposite
the air pipe. This allows air to freely pass through the valve and out the other
side (Fig. 12). In this position it remains during a blowing of plastic glass.
When the glass is blown the star wheel receives a second impulse. This impulse
closes the valve by bringing the solid part thereof opposite the inlet air supply.
There is one upright shaft 128 at each end of the machine, properly located to
perform its proper operation.
130 shows the flange wheel for lifting the blow-iron spindle, by means of the
cam-track 90, on which it runs. This wheel is held with bearing or collar 131
on blow-iron spindle. It is held in position on the shaft from moving lengthwise
by the two collars 132, which are attached to the spindle with screws, and has
ball-bearings for end thrust to lessen friction.
The commutator 121 is a metal case and surrounds the pipe 119, (see Figs. 34
and 35). This commutator case remains at rest and the pipe 119 revolves inside
of same at of a revolution to an impulse, or one revolution for each cycle of
the machine. Electric wires 133 and 134 extend from some external source of
energy, through the coupling 135 and flexible pipe 120 into the said commu-
tator 121, where they are connected to springs 136, bearing the commutator metal
brushes 137. The commutator is built upon an iron or metal bushing, upon
which bushing is located the insulating fibre bushing 138. Upon this fibre are
the rings of metal 139, 139, whereby the metal rings are insulated from each other
and from the metal bushing. The conductor wires 133 and 134 then pass from
the said rings into the pipe 119, and thence through pipes 105 to the motor 95
and rheostat 94 by a division. The entire duty of this commutator is to convey
the electric current through the pipe 119 to the motors on the motor cars without
becoming twisted. This arrangement ensures a positive electric connection to
the motor car at all times, giving one polarity of current to the motor. It will
be noticed that but two wires enter the commutator and leave the same, but where
the wires emerge from the flexible air pipe there are four wires,
owing to the division above referred to. This will not need further
description as it is the well known way of taking two wires from any outside
source of electric energy and connecting them so as to energize the field magnets
of the electric motor and at the same time control the motor armature with the
rheostat.
As shown in the machine illustrated in the present drawings, four sets of cars
can ordinarily be in operation at the same time, but the method is not limited
to this number. In Figure 1, 140 shows the glass bulb when first put into the
machine, before the slickers have closed upon the same and before air from the
machine has been supplied. 141 shows the glass after it has nearly taken its final
shape, slickers closed upon the same and the process well under way. 142 shows
the glass after the operation has been completed and the motor 95 comes to rest,
the air spindle ready to lift, the slickers open and the article about ready to be
taken from the machine. 143 shows the slicker car with the slickers wide open
and receiving their wetting and cooling preparing them for a fresh gathering of
plastic glass.
On the base 1 (Fig. 2) is shown attached to one side upon an upright support-
ing shaft 144 by a swivel joint 145 and clamp 146, a flexible pipe 147 bringing air
from some extraneous supply to the vicinity of the traversing slickers to cool the
glass at the proper stage. This air blast can be shut off and turned on by a valve
similar to one applied on the motor car at valve 112, or it may be left on all the
time, as it can be directed upon the glass only when the latter has reached the
proper stage of the process and the proper position on the machine as the slicker

page_text: car passes through that part of its cycle. This air pipe or air blast may be one
pipe or collection of air pipes for this purpose.
OPERATION OF THE MACHINE.
Taking the machine when at a stage of rest, I will describe the starting of the
machine and the completion of one cycle of operation of one pair of motor and
slicker cars. The operation is duplicated in the other pairs of cars.
First, the machine has been brought to its position in front of the furnace,
through the motor 22 the train of gearing 29, the shaft 28, bevel gears 34, 35
and 36 and the guiding device on front of the machine consisting of hand wheel 47,
shaft 46, train of gearing 45 and steering wheel 44.
After the machine is duly placed, the handle 39 is returned to perpendicular
position. The armature of the motor 22 is then again started by the hand regu-
lating and starting rheostat 25 the radius arm of which is set at such position as
will suit the work in hand, different speeds being required for different sized
work. This starts the cars into movement, through shafts 28, 27 and
cables 31 30, their speed around the machine on their respective tracks being
governed by the set of the rheostat arm. After the speed is once set it remains
constant. The motor 22 also brings into operation the rotary pump 12, which
supplies water continuously to the top tank 13. These operations being all
initiated we will suppose that a pair of cars, both motor and slicker, have arrived
at the position shown at the extreme left, Fig. 1. At this position the slickers 57
are at their widest opening apart. The air is shut off from the upper car by air
valve 112 at end of flexible tube 105. The blow-iron spindle with the clutch is
lifted to its highest position. The lever 148 of the rheostat 94 is at the position
where the current is entirely shut off, and the motor is at rest. The air discharge
pressure valve is at its highest position, ready to take air freely, and give a free
second path for air from air chamber 104 thus admitting air at low pressure to
blow-iron S1 when it comes on.
The operator has now just put in a fresh blow-iron with its fresh gathering of
plastic glass thereon into the blow-iron supports or bearings 80, with the glass
between the slickers. This gathering of glass has first received the slight hand
and lug manipulation required of same before being put in to the machine. But
a slight amount of skill is required to do this. Immediately the slickers close
upon the bulb until they come in contact therewith. While this is being dono
various other movements are taking place on the upper or motor car. The blow
iron clutch has meantime descended into contact with the blow-iron, sealing same
air tight by means of the flexible washer 85 in clutch 84 shown in Fig. 12. The
motor 95 on the top car has now started slightly, the rheostat arm 148 having
been moved by the operation of cam-track 92. This starting of the armature of
motor 95 has through its connections of gearing and shafts and sprocket chains
through shaft 86 gear 87 and circular rack 88 started the slickers into revolution
around the gathering of plastic glass 140 on blow-iron 81. The blow-iron has
started to revolve slowly in the opposite direction, the speed of both increasing as
the process proceeds. The valve 112 has now opened, admitting air under full
pressure to the motor car 48. But as the escape valve 111 is still open, but a
slight amount of pressure is experienced at the plastic glass. The speed increases
according to predetermined plan, the air pressure increases according to predeter-
mined plan, both governed by the cam-tracks 92 and 91, the slickers open
gradually, according to plan, as governed by cam-track 10 Fig. 7, and the plastic
glass has gradually expanded as the slickers have opened until the glass has
attained its correct size and approximate final shape. At this time the slickers
will remain in this position for a while until the speed has increased in the motor
to its desired limit, all the while revolving the slickers in contact with the revolv-
ing article of plastic glass, which now has taken its final shape, being modelled
into perfect contour by the revolving paste-covered slickers, and smoothed and
ironed and slicked until all creases are out of the same. The air pressure has
increased to the limit required for this operation and the air from outside pipe 147

page_text: commences to come into contact with the glass, which is now ready to cool and be
taken out from between the slickers. This air cooling blast, which is applied to
the outside of the slickers at this stage, directly upon the blow glass through the
spaces between the slickers, takes place just before the opening of the slickers, to
harden the glass as much as is practical before taking out the finished product.
The pair of cars now goes through the reverse movements. The rheostat arm
shuts current from off the armature in the motor, thus stopping the motion of the
same and with it the revolution of the blow-iron spindle and the slickers. The
clutch lifts off from the blow-iron. The air valve 112 closes, shutting off the
supply of air from this motor car. The air-regulating escape spindle valve 111
lifts ready for a second operation. The glass article is taken from the machine
and the slicker car advances into the metal housing 15, where the sprinklers are
at work throwing a liberal supply of water upon the slickers, which now entirely
floods them, wetting their paste-covered surfaces and cooling them thoroughly
When they come from out the housing they are entirely cool and ready for another
cycle of operation.
The operation of one pair of cars is duplicated in the others, the several opera-
tions taking place at the same time on different pairs of cars.
The face of the slicker where it comes in contact with the glass is not neces-
sarily of same arc of curvature as the finished product. The edges or carriers of
this face of the slicker are preferably rounded where they are presented to the
plastic glass. By this means the plastic glass article is kneaded, ironed, modelled,
smoothed, and slicked into its ultimate shape. This operation is one not possible
to be practised with the sectional mold. In this machine, as soon as the bulb of
glass has been taken from the furnace, manipulated slightly and placed in the
machine, and the machine is started, the slickers at once approach each other until
they have embraced the plastic glass bulb on all sides. Immediately the regulated
air blast is admitted, and the process of forming or slicking the glass article into
shape commences. The slickers, as soon as the plastic glass comes into contact
with them, commence to expand or open, and the expanding glass follows the
opening slickers, till the article has reached its desired final shape. At this stage
the slickers remain a very short time in this position, when the blast has reached
the full pressure required for the article in process, after which it is turned off.
automatically. During the time that the slickers are expanded to the finished
size of the glass article in process the outside air blast from an external source of
air supply is turned onto the slickers and also the finished product as before
mentioned, which it can readily reach through the spaces or openings between the
sides of the slickers, and thus materially assist in cooling the finished product
prior to being taken from the machine. As soon as the operation on the plastic
glass has been completed the slickers expand to their fullest extent, which gives
ample room to remove the finished product. They are then wet and cooled in the
sprinkling house and are ready for a fresh gathering of plastic glass.
At no time during the various contractions and expansions of the slickers do
they touch each other. When they first embrace the plastic bulb before the
process of expansion takes place, they are very close together, but not in contact.
There are very few articles, such as very small and thick ware, that can be
made nearly as well by dispensing with the expansive properties of the slickers.
In such cases the slickers can then upon approaching, simply close to the exact
size of the finished product, remaining there until article is slicked into shape, and
then expand to remove the product. All these movements can be regulated to a
nicety by means of the long cam-track 10, which admits of any adjustment.
In almost all kinds of work the product is much bettered by beginning the
modeling from the first expansion of the plastic glass, as my correspondent is
enabled to do with this method of employing expansion slickers. Abrupt irregu-
larities in the finished glass product, such as sharp angles and curves, can be much
better worked by beginning to make the glass take its final shape at first when the
B

page_text: bulb is small and very plastic, and causing the expansion to follow the lines of the
slickers from thereon.
As soon as glass has taken its shape the space between the slickers admits of air
getting to the product, and during the last of the operation, when the article is
nearly finished, this space between the slickers is sufficient for the air cooling
preparatory to taking the product from the machine. This cooling the finished
product by air blast materially aids the machine, in increasing its capacity for
doing work. It hardens and cools the glass somewhat so that contact with any
hard substance after being removed from the machine is much less liable to dent
and injure it. In this invention the blow-iron may be revolved with its gathering
of plastic glass and not have the slickers revolve about the plastic glass. The
slickers can be revolved about the plastic glass and have the blow-iron remain
stationary with its gathering of plastic glass, or the blow-iron can be revolved
with its gathering of plastic glass and also revolve the slickers about the plastic
glass in conjunction, as the case may require, in opposite directions, or at differ-
ential speeds in the same direction.
By providing that the slickers shall never come quite together under any cir-
cumstances in operation upon the plastic glass, the common trouble is avoided in
mould machines of refuse glass from last operation getting between the edges of
the mold, and thus spoiling that one operation and running the chance of injur-
ing the mold and machine. My correspondent does not limit himself in any
manner to applying this invention to the style of frame illustrated in this applica-
tion, since these slickers are applicable to almost any other type of glass blowing
machines, including those using sectional molds, and will do better work, in
larger pieces, and at the same time more rapidly than is now accomplished with
the common sectional mold. This feature can readily be applied to other types
of machines by the substitution of the slicker mechanism.
In the type of frame that is illustrated with this machine many advantages are
obtained a few of which will be mentioned. The machine being a straightway one
the operators that attend or feed it are at one end. They have free access to the
part of the machine without interference from the tenders who remove the finished
product at the other end. Immediately upon the glass being put into the machine
it begins its retreat from the furnace, continuing to retreat until final removal
from the machine. This feature of putting plastic glass in at one end and removing
finished product from the other, also adds to the capacity of product that such
a machine is capable of, as the tenders each have room for their respective opera-
tions uninterfered with.
The design also economizes room around the glass furnace, the machine being
narrow and long. This is an advantage, as when two adjoining pots in a glass
furnace are worked, they can be worked with less interference in case of a narrow
and long machine, reaching away from the furnace.
Each car, or set of cars, a top and bottom one working in pairs, perform their
operation separately from the other pairs, and by this method of construction a
machine is capable of being greatly multiplied in capacity by the addition of
pairs of cars. Pairs of cars in this type of machine can be worked on different
forms or shapes if desired, simply by having different sets of slickers for such
shapes upon that pair of cars.
It is also a great advantage to make use of the main motor for the purpose of
converting the machine temporarily into an electric car, by throwing the power
shaft into contact with the truck wheels by means of bevel gears, and thus being
enabled to move the car or machine from one position to another about the furnace
to whichever glass pot is to be drawn from. This in the past has been accomplished
by manual labor, which in such large and heavy machines as glass machines,
requires considerable force, which is economized by utilizing mechanical power
under perfect control as to speed and direction.
In the foregoing description it is to be understood that the word
"slickers'
wherever used relates to static fingers or modellers, which operate on the plastic

page_text: glass by a rubbing or sliding action in contradistinction to revoluble formers,
which operate on the glass by a rolling action, on the one hand, or to sectional
molds, which enclose the plastic glass and form its shape by compression at all
points thereof. It is true that the glass is sometimes rotated in contact with the
inner surface of such molds, but it is not modelled to form solely by rubbing con-
tact, as it is the case with slickers, which nowhere enclose the plastic glass entirely,
but leave room on all sides for the accession of cooling blasts of air between said
slickers or fingers, as the glass rotates in contact with them. This is the radical
distinction between molds and slickers. Said slickers or fingers, while static in
their operation, in the sense that they do not revolve on axes of their own, like the
revoluble formers before referred to, may revolve as a group, in place of revolving
the plastic glass, but this does not make the term "revoluble" applicable to them
as slickers.
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 I declare that what I claim is :-
_
1. In a glass working machine, a plurality of slickers for modelling the exterior
of plastic glass, in combination with means for distending said glass with air and
supporting the same while so distended in sliding contact with the said slickers,
substantially as specified.
2. In a glass working machine, a plurality of slickers for operating on plastic
glass, in combination with means for supporting and rotating a mass of plastic
glass in simultaneous sliding contact with said slickers, substantially as specified.
3. In a glass working machine, a plurality of slickers arranged in a circle, in
combination with means for distending a mass of plastic glass with air and sup-
porting the same while so distended, centrally between and in sliding contact with
the said slickers, and means for revolving the slickers about said glass, substantially
as specified.
4. In a glass working machine, in combination, a plurality of slickers arranged
in a circle, means for contracting and expanding said slickers towards and from a
common center, means for supporting a mass of plastic glass centrally within said
circular group of slickers, and means for automatically rotating said glass,
stantially as specified.
-
5. In a glass working machine, in combination, a plurality of slickers arranged
in a circle, means for contracting and expanding said slickers towards and from
a common center, means for distending a mass of plastic glass with air and sup-
porting the same while so distended centrally within said circular group of slickers,
and means for revolving said slickers about said glass, substantially as specified.
6. In a glass working machine, in combination, a plurality of slickers arranged
in a circle, means for contracting and expanding said slickers radially, means for
revolubly supporting a mass of plastic glass within said circular group of slickers,
and means for supplying a blast of air upon said glass between said slickers, sub-
stantially as specified.
7. In a glass working machine, a plurality of slickers in combination with means
for supporting and rotating a mass of plastic glass in simultaneous contact with
said slickers, and a bottom slicker support for said glass, substantially as specified.
8. In a glass working machine, a plurality of slickers arranged in a circle,
means for revolubly supporting a mass of plastic glass within said circular group
of slickers, means for positively rotating said slickers about said glass, and auto-
matic mechanism for positively rotating said glass, substantially as specified.
9. In a glass working machine, a plurality of slickers arranged in a circle,
automatic mechanism for supporting and positively rotating a mass of plastic
glass within said circular group of slickers, and means for contracting and expand-
ing said slickers radially, substantially as specified.
10. In a glass working machine, a plurality of slickers arranged in a circle, each
borne on a carrier, means for contracting and expanding said slickers radially,

page_text: means for positively rotating said slickers about a common axis, and automatic
mechanism for sustaining and positively rotating a mass of plastic glass within
said circular group of contracting and expanding slickers, substantially as
specified.
11. In a glass working machine, a plurality of slickers arranged in a circle,
means for radially contracting and expanding said slickers towards and from a
common center, means for sustaining a mass of plastic glass centrally within said
circular group of slickers, means for positively rotating said mass of glass on its
axis, and means for supplying a blast of air to the interior of said mass of glass
while in rotation, substantially as specified.
12. In a glass working machine, a plurality of slickers arranged in a circle,
means for radially contracting and expanding said slickers towards and from a
common center, means for rotating said slickers about a common
axis, means for sustaining a mass of plastic glass within said circular
group of slickers, means for positively rotating said mass of glass on its axis, and
means for supplying a blast of air to the interior of said glass while rotating, sub-
stantially as specified.
13. In a glass working machine, a plurality of slickers arranged in a circle,
means for sustaining a mass of plastic glass within said circular group of slickers,
means for rotating said glass, and means for supplying a blast of air under regulated
pressure to the interior of said glass, substantially as specified.
14. In a glass working machine, a plurality of slickers arranged in a circle,
means for rotating said slickers about a common axis, means for sustaining a
mass of plastic glass within said circular group of slickers, and means for supply-
ing a blast of air under regulated pressure to the interior of said plastic glass,
substantially as specified.
15. In a glass working machine, in combination, a plurality of slickers arranged
in a circle, means for revolubly sustaining a mass of plastic glass within said
circular group of slickers, means for supplying air to the interior of said plastic
glass under pressure, and an automatically-operated air escape valve, in com-
munication with said means of air supply, "whereby the air pressure supplied to
the said glass is regulated and controlled according to the work in hand, substan-
tially as specified.
16. In a glass working machine, a plurality of slickers arranged in a circle,
means for contracting and expanding said slickers towards and from a common
center, means for supporting a mass of hot plastic glass within said circular group
of slickers, means for traversing said group of slickers and said glass along a
trackway, and means for wetting and cooling said slickers when in the expanded
condition, after contact with the heated glass, substantially as specified.
17. In a glass working machine, a vehicle, having a bottom portion mounted on
wheels, and a top portion revolubly sustained on the bottom portion, said top
portion carrying a group of slickers, two or more, with means for contracting and
expanding the same radially towards and from a common center, substantially as
specified.
18. In a glass working machine, a vehicle, having a bottom portion mounted
on wheels, and a top portion revolubly sustained on said bottom portion, said top
portion carrying a group of slickers, two or more, means for contracting and
expanding said slickers radially towards and from a common center, means for
impelling said vehicle, along a track-way, and means for simultaneously rotating
sail top portion upon said bottom portion, substantially as specified.
19. In a glass working machine, a vehicle, having a bottom portion mounted
on wheels, and a top portion revolubly sustained on said bottom portion, said top
portion carrying a group of slickers, two or more, mounted so as to be capable of
contracting and expanding radially towards and from a common center, a rising
and falling cone engaging said slickers to expand the same, and flanged pulley, in
combination with a cam-track, on which said pulley traverses, thereby governing
the rise and fall of said cone, substantially as specified.

page_text: 20. In a glass working machine, a vehicle having a bottom portion mounted on
wheels, and a top portion revolubly sustained on said bottom portion, said top
portion carrying a contractible and expansible group of slickers, in combination
with an endless horizontal cable connected to said bottom portion, means for
traversing said cable, and means for rotating said top portion while traversing,
substantially as specified.
21. In a glass working machine, a frame base with endless trackways thereon,
a frame plane above said base with endless trackways thereon, wheeled vehicles
running on said lower and upper trackways, means for impelling said vehicles,
and a vertical connection between said upper and lower vehicles, substantially as
specified.
22. In a glass working machine, an elevated frame plane having endless track-
ways, a wheeled vehicle adapted to run in said trackway, means for impelling said
vehicle around said trackway, a portable motor on said vehicle, a rheostat, and
lever arm, in combination with a cam-track 92, co-operating with said rheostat
arm for regulating and controlling the amount of current admitted to the armature
of said motor, substantially as specified.
23. In a glass working machine, a wheeled vehicle, running on an elevated
trackway, a portable air chamber and air escape valve carried on said vehicle,
and means for supplying air to said air-chamber, in combination with a stationary
cam track co-operating with said air escape valve, for automatically regulating and
controlling the air pressure in said air-chamber, substantially as specified.
24. In a glass working-machine, a wheeled vehicle running on an elevated track-
way, a portable air spindle carried on said vehicle, adapted to rise and fall vertically,
means for rotating said air spindle, and means for supplying air to said air spindle
under regulated pressure, in combination with a stationary cam-track co-operating
with said air spindle to automatically regulate and control the rising and falling
of the same, substantially as specified.
25. In a glass working machine, a base trackway, an elevated trackway, wheeled
vehicles running on said trackways, means for moving said vehicles_simul-
taneously, and vertical rigid connections, attached to said upper and lower
vehicles, carrying horizontal arms 79 and bearings 80 for blow irons, substantially
as specified.
26. In a glass working machine, a frame base, an elevated frame plane, sup-
porting columns 3, 3, telescopic screw threaded extensions 5, 6, and screw-threaded
hand wheels 7, 7, for adjusting the height of said frame plane, substantially as
specified.
27. In a glass working machine, an elevated frame plane with endless trackways,
a wheeled vehicle running on said trackways, an endless cable, with means for
impelling the same, and a pivoted arm and clamp 77 rigidly connected to said
vehicle by vertical extensions 76, substantially as specified.
28. In a glass working machine, a wheeled vehicle running on a base trackway,
a wheeled vehicle running on an elevated trackway, means for simultaneously
impelling said vehicles around said trackways, a rotary group of slickers carried
on said lower vehicle, a motor carried on said upper vehicle, and a vertical rotary
shaft 86 held in trunnion boxes, extending from said upper vehicle to said lower
vehicle communicating rotary motion from said motor to said rotary group of
slickers by means of pinion 87 and circular rack 88, substantially as specified.
29. In a glass working machine, a frame base, an elevated plane, vertical rotary
shafts 27, 28, flanged pulleys 32, 33, endless cables 31, 30, a central solid shaft 116,
extending upwards through frame plane 2, a radial armed wheel 149, in com-
bination with lugs 53 carried on endless cable 30, for giving intermittent rotary
motion to said shaft 149, substantially as specified.
30. In a glass working machine, a frame base, supported on truck wheels 44, 38,
an electric motor borne by said base, gearing between said electric motor and said
truck wheels, and shifting gears for throwing the connecting mechanism in and
out of gear on each side alternately, whereby the machine is made automobile

page_text: and the direction of motion forwards or backwards is controlled at will, substan
tially as specified.
31. In a glass working machine, a frame base, supported on truck wheels 38
on a common shaft, and a steering wheel 44, shifting gears splined on said
common shaft 37, means for shifting said gears to the right or left on said shaft 37,
intermediate pinion 34 vertical shaft 28, motor 22, and intermediate gears 29;
whereby the machine is automobile, substantially as specified.
32. In a glass working machine, a frame base, having an endless trackway,
wheeled vehicles running on said trackways carrying rotary groups of slickers,
means for contracting and expanding said slickers towards and from a common
center, at predetermined times, means for holding a mass of hot plastic glass in
contact with said slickers, a housing built over one portion of said trackway, and
sprinkling pipes in said housing, whereby said slickers are wetted and cooled when
in the expanded condition, substantially as specified.
33. In a glass working machine, a frame base, having a well therein, an elevated
frame plane, having a water-tank thereon, vertical pipe connections for supply and
overflow between said frame base and said frame plane, and a pump, for elevating
water from said well to said tank, substantially as specified.
34. In a glass working machine, a frame base, a frame plane supported thereon
by extensible columns, upright rotary shafts 27, 28, endless cable connections
between said shafts, and a motor borne on the machine with gear connections for
supplying motion to said shafts, substantially as specified.
35. In a glass working machine, a frame base having an endless trackway for
vehicles thereon, an elevated frame plane having an endless trackway for vehicles
thereon, and extensible supporting columns between said base and elevated frame,
substantially as specified.
36. In a glass working machine, a frame base having an endless trackway
thereon, an elevated frame plane having an endless trackway thereon, wheeled
vehicles to run on said trackways, endless cables for impelling said vehicles, a
motor for operating said cables, a vertical connection between said vehicles, glass
working machinery borne on the lower vehicles, an automatic air pressure regu-
lator, a rotary rising and falling air spindle, and a travelling motor borne on the
upper vehicle, and means for automatically governing said air pressure regulator,
said travelling motor and said rising and falling air spindle, substantially as
specified.
:
37. In a glass working machine, a frame base having an endless trackway
thereon, a wheeled vehicle running on said trackway, contracting and expanding
slickers borne on said vehicle, for operating on plastic glass, means for supporting
hot plastic glass for treatment by said slickers and a stationary air blast for cooling
said glass at a proper stage of the operation, substantially as specified.
38. In a glass working machine, an endless trackway, a wheeled vehicle running
thereon, contracting and expanding slickers borne on said vehicle, means for
supporting a mass of plastic glass between said slickers, means for automatically
revolving said slickers about the glass, means for automatically contracting and
expanding said slickers in contact with the glass, means for expanding the glass,
means for cooling the glass, and means for wetting and cooling the slickers after
the removal of the glass, substantially as specified.
39. In a glass working machine, upper and lower endless trackways, wheeled
vehicles running thereon, a stationary motor for impelling said vehicles, a
travelling motor for operating the glass working machinery, slicker mechanism
for manipulating the glass borne on the lower running vehicles, and automatic
machinery for regulating air pressure borne on the upper running vehicles, sub-
stantially as specified.
40. In a glass working machine, a frame base having an endless trackway,
an upper frame plane having an endless trackway, wheeled vehicles running
on said trackways, means for impelling said vehicles, vertical connections
between said vehicles, bearing blow iron supports, a removable blow

page_text: iron borne in said supports, means for rotating said blow iron and supplying
air thereto under regulated pressure borne on said upper vehicle, contracting and
expanding slicker mechanism borne on said lower vehicles, a stationary air pipe
for cooling hot glass, and stationary sprinkling pipes for wetting and cooling hot
slickers, substantially as specified. .
41. In a glass working machine, a blow iron spindle, having transverse V-shaped
notches, and a washer 85, in combination with a blow iron, having transverse
pins 83 for engagement with said notches, substantially as specified.
42. In a glass working machine, the combination of the travelling air box 104,
air supply pipe 106, air escape valve 111, travelling pulley 103, cam track 91, and
rotary spindle 93, substantially as specified.
43. In a glass working machine, the combination of the vertical shaft 149, with
means for intermittently rotating the same, the air box 118, carrying branching
flexible pipes 105, portable air pipes 106, vertical pipe 119, and stationary inlet
pipe 120, substantially as specified.
44. In a glass working machine, the combination of the vertical solid shaft 116,
air box 118, rotary air pipe 119, stationary inlet pipe 120, flexible air branches 105,
pivoted sustaining levers 124, and springs 126, substantially as specified.
45. The combination of the air box 118, flexible air branches 105, spring sus-
taining levers 124, and curved elbow supports 123, for protecting the flexure of
air branches 105, substantially as specified.
46. The combination of the stationary air inlet pipe 120, commutator 121
rotary pipe 119, air box 118, and branch pipes 105, with conductor wires 133, 134,
making rotary connection within the commutator 121, substantially, as specified.
47. The combination of the frame base 1, having endless trackway 8, and
wheeled vehicles running thereon carrying rotary group of slickers 57, with the
swivelled stationary air pipe 147, substantially as specified.
48. The combination of endless cable 30, notched pulley 32, clamp 49, and
wheeled vehicle 9, with steadying arms 50, for preventing vibrations in the
moving vehicle, substantially as specified.
I
49. The slicker 57, having adjusting slot 66, in combination with slicker sup-
port 63, having slots 64, substantially as specified.
50. The combination with the slicker 57, slicker supports 63, slotted as at 64,
pulley 59, springs 65, and cone 58, substantially as specified.
51. The combination of slickers 57, slicker supports 63, bottom slicker 68, and
cone 58, substantially as specified.
52. The combination of cone 58, flanged wheel 60, journaled stem 61, ball
bearings 62, and cam track 10, substantially as specified.
53. The combination of striker wheel 149, endless cable 30, strikers 53, and
flanged wheels 32, having notches 51, substantially as specified.
54. The combination of flexible air pipe 105, standing air pipe 106, rotary air
valve 112, star wheel 129, and stationary striker 127, substantially as specified.
55. The slickers 150, having bottom extensions 151, for supporting and forming
the bottom of the plastic glass article, substantially as specified.
56. The upright standards 78, having arms 79, and bearings 80, with renewable
bushings 82, substantially as specified.
57. The blow iron 81, having conical enlargement 152, in combination with
bearing 80 having slotted side, and renewable bushing 82, substantially as specified.
58. The combination of an endless trackway, wheeled vehicles to run thereon,
glass working machinery borne on said vehicles, and an endless cable for im-
pelling said vehicles around the trackway, substantially as specified.
59. The slicker 57, having rounded edges, and adjusting slots, substantially
as specified.
60. In a glass working machine, in combination, an air conduit, a removable
blow iron, a group of slickers for modeling plastic glass, means for carrying said
air conduit, blow iron and slickers in a continuous circuit while maintained in
operative relation, means for automatically expanding and contracting said

page_text: slickers, and means for supplying air in variable quantity to said air conduit,
substantially as specified.
61. In a glass working machine, in combination, a group of slickers for operating
on plastic glass, means for rotating said slickers and simultaneously approximating
and separating them while rotating, a removable blow iron, means for supplying
a blast of air thereto, and positive means for automatically varying the volume
and pressure of air supplied to said blow iron, substantially as specified.
62. In a glass working machine, a car travelling on an elevated trackway, an
air conduit on said car, an air supply pipe on said car connected with an external
source of supply, and with the air conduit, and means between said air supply
pipe and said air conduit for permitting an escape of air in automatically regulated
quantity, thereby varying the pressure of the air supply delivered to the said air
conduit, substantially as specified.
63. In a glass working machine, in combination, a blow iron, a means for
generatng a blast of air, a conduit for delivering said air to said blow iron, an
escape outlet connected with said conduit, and a positive means for automatically
varying the aperture of said outlet, whereby the volume and pressure of air
delivered to the blow iron is positively regulated automatically, substantially as
specified.
64. In a glass working machine, in combination, a means for generating a
blast of air, an air conduit, a pressure regulating valve having an escape outlet,
connected with said conduit, a sliding piston for varying the aperture of said
outlet, and automatic means for positively varying the position of said piston,
thereby regulating the volume and pressure of air in said conduit, substantially as
specified.
65. In a glass working machine, an automatic variable pressure regulating
valve, consisting of an air pressure tube having a sliding piston therein and a
slit for the escape of air, in combination with a means for automatically and
positively varying the position of the piston in said tube, and thereby regulating
the escape of air through said slit, substantially as specified.
Dated this 6th day of March 1899.
WM. P. THOMPSON & Co.,
Agents.