Improvements in Type Casting and Finishing Machines.
Year: 1893

page_text: Date of Application, 22nd Apr., 1893-Accepted, 27th May, 1893
Improvements in Type Casting and Finishing Machines.
I, JAMES GABRIEL PAVYER, of 3121 Clifton Place, in the City of St. Louis,
in the State of Missouri, and United States of America, Machinist, do hereby
declare the nature of my invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
My invention relates to an arrangement used in connecting the chamber of the
"choker" valve with a closed type-metal chamber that is thrown into com-
munication with a closed vessel or chamber supplying air or other fluid under
sufficient pressure to cause the ejection of the metal from the nipple into the
mould with the required force.
The invention further relates to a means for discharging the types from the
moulds and dressing them, and also to the type mould. The features claimed as
novel will be set forth in the claims.
In the accompanying drawings:
Figure I is a front elevation of the machine with the parts in the position they
have when the type is being cast.
Figure 1 is a vertical longitudinal section taken at II-II Figure I, showing
the down feed cam and lever in elevation, the extreme positions of the lever
being shown by dotted lines.
Figure III is a top view of the machine.
Figure IV is a detail elevation of the vertical or down feed device in the upper
position, and
Figure V is a view of same parts in lower position.
Figure VI is an elevation of right hand end of the machine, with the parts in
same position as seen in Figure I.
Figure VII is a rear elevation of the machine with the kettle removed.
Figure VIII is a detail vertical transverse section taken at VIII-VIII
Figure I.
Figure IX is a detail elevation of frame carrying the matrix, &c., with the cam
shaft in transverse section at IX-IX Figure I.
Figure X is a perspective view of the matrix and holder.
Figure XI is a detail elevation of the left-hand end of the machine.
Figure
XII is a detail elevation of the nipple-plate.
Figure XIII is a detail front perspective view of the dresser in normal position.
Figure XIV is a detail rear perspective view of the dresser with the pusher
advanced.
Figure XV is an inside perspective view of the knife and holder detached.
Figure XVI is an outside perspective view of the knife and holder.
Figure XVII is a perspective view of the dresser looking at the discharge end.
Figure XVIII is a detail perspective view of the removable top plate of the
dresser.
Figure XIX is a detail vertical longitudinal section taken at XIX-XIX
Figure XVII.
Figures XX and XXI are detail horizontal sections taken through one of the
cutters.
Figure XXII is a detail elevation showing the type in position to have the jet
broken off, and
Figure XXIII is a similar view except that the jet is shown just broken from
the type and the breaker in its lowest position.
[Price 8d.]

page_text: Figs AAT
apparatus.
a top view mustrative of the type metal vessel and pressure
Figures XXV and XXVI are elevations of opposite sides of the vessel and
pressure apparatus.
Figures XXVII and XXIX are enlarged vertical sections taken at XXVII-
XXIX, Figure XXIV, showing moving parts of pressure apparatus in different
positions.
Figures XXVIII and XXX aro vertical sections taken at XXVIII-XXX
Figure XXIV, showing the compound choker valve in different positions.
Figure XXXI is a horizontal section taken at XXXI-XXXI Figure XXXII.
Figure XXXII is an enlarged vertical section taken at XXXII—XXXII
Figure XXIV.
Figure XXXIII is a side elevation of the mould showing it in closed position.
Figure XXXIV is a vertical longitudinal section through the mould, taken on
line XXXIV-XXXIV Figure XXXV.
Figure XXXV is a top view or plan of the mould.
Figure XXXVI is a top view or plan of the lower part of the mould from
which the upper part is removed.
Figure XXXVII is a bottom view of the upper part of the mould.
Figure XXXVIII is a detail of the pusher adjusting device.
Figure XXXIX is a modification of the pusher adjusting device shown in
Figure XXXVIII.
Referring to the drawings
-
1 is the main frame. 2 is the cam shaft having bearing in the frame at 3. 4 is
a pulley or balance wheel upon the shaft to receive a drive belt. The machine
may however be driven by hand. The mould has three principal parts, one of
which is stationary and two movable. The lower member 5 of the mould is
secured upon the frame of the machine by suitable means and forms the base of
the mould and contains the recess in which the types are cast.
The upper section 6 is adjustably secured to a block 6ª pivotted between screws 7
in a bracket 8 mounted on the lower member 5. The bracket 8 has vertical
adjustment through means of set screws 9 for the purpose of allowing for the
casting of types of different thicknesses.
The inner side of the type recess is formed by a pusher plate 10 that works
between the upper and lower parts of the mould, and has a sliding movement for
the purpose of pushing the type from the mould after being cast.
The pusher plate 10 is connected to a slide 11 by means of a projecting stud 12
on the upper side of said slide that enters an opening 13 near the inner end of the
pusher 10.
The pusher plate is provided with a longitudinal slot 14, into which projects a
pin 15 secured by a set screw 16 to the lower member of the mould; the object
of the pin 15 being to limit the movement in either direction of the pusher plate.
At a point intermediate between the slot 14 and the end of the pusher plate is an
opening 17.
On the under side of the upper section 6 of the mould, is the block 6ª and
to this block is fastened a plate 18 by screws 18" (see Figures XXXIV
and XXXVII). 6* is a plate interposed between the parts 6 and 6º. 19 is a set
screw that passes through a slot in the section 6 and adjustably secures the said
section to the block 6. In the outer end of the plate 18 is a set screw 20 with
a conical point 21 and carrying a nut 22. Now, after a type has been cast, the
pusher 10 is moved forward by the slide 11, pushing the type out of the mould,
after which said pusher recedes from the mould and is limited in its movement by
the upwardly projecting pin 15 in the slot 14; the upper section 6 of the mould
coming down upon the lower section, carries with it the set screw 20, the conical
point 21 of said screw entering the opening 17 in the pusher, and adjusts it to the
precise position that is necessary to make the type of the proper uniform size, and
retains the pusher plate in such position while the type is being cast,

page_text: It will be seen that the conical point of the screw 20, entering the opening 17,
will correct any small deviation that might occur in the proper return of the
pusher, which of course is quite necessary for the reason that the pusher forms one
side of the mould.
In the modification of the mould shown in Figure XXXIX, a projection 23 on
the upper face of the pusher 10 takes the place of the opening 17, against the side
of which projection the point 21 of the set screw comes in contact to adjust the
pusher to its proper position.
The member 6 is thrown up by a spring 24 and drawn down into working
position by a cam 25 acting on an anti-friction roller 26 having bearing in a lever 27
connected with the member 6 by a rod 28.
6b is the socket receiving the end of the lifting rod 28, and 6° the screw by which
the said end is held in engagement.
The spring 24 surrounds a rod 29 having vertical movement and whose upper
end bears against the bottom of the lever 27. 30 is a nut screwing on the rod 29
and against the bottom of the nut the upper end of the spring bears, the lower
end of the spring having bearing upon a fixed part of the main frame.
The rod 29 passes loosely through the base of the frame, and in order to limit
the ascent of the mould piece 6 the rod carries a stop nut 29" that impinges against
the bottom of the base for the above purpose. The stop nut is beld in place by a
jam-nut, as seen in Figures I, VI and VII. The purpose of this adjustment is to
fit the mould for the casting of types of different sizes, the larger types requiring
the piece 6 to be moved up higher to allow them to pass beneath it.
The fulcrum 27" of the lever 27 is also made adjustable for the same purpose,
said fulcrum being on a vertically adjustable plate 27b having lips embracing an
upright 1 of the main frame and held in position by a bolt 27° passing through a
vertical slot in the plate 27 and screwing into the upright, (see Figures I, VI,
VII VIII).
When the parts of the mould are in the position seen in Figures I, VII,
XXXIII, XXXIV the mould is ready for the casting of the type. When the
type has been cast the member 6 is thrown up and the pusher 10 moves leftward
and pushes the type from the mould.
The slide 11 has at the under side and right hand end an ear 32 connected by a
link 33 to the upright arm of a bell crank 34. The side arm of this bell crank
bears on a lever 35 that carries an anti-friction roller 35ª that bears upon a cam 36
upon the cam shaft 2. The side arm is connected by a draw-spring 37 to the
frame of the machine, the office of the spring 37 being to draw the side arm down
and thus draw the pusher to the right into its normal position, the purpose of the
cam 36 being to move the pusher to the left and eject the type from the mould
(see Figures I and VII).
The matrix 38 is held in any usual or suitable manner. 39 is a bar having a
detachable part 40 which bears against the right side of the matrix and which is
secured to the lower member 5 of the mould by a screw 41 passing through a slot
allowing endwise adjustment of the bar. The bar 39 carries on the inner side a
block 42 that is secured to it by screws 43 passing through slots in the bar, and
screwing into the block so that the block may be adjusted to right or left upon the
bar. 44 is a screw whose point bears against the block to resist the force of blows
against the left end of the block.
When the type 45 is pushed from the mould it enters an aperture 46, open at
both ends, in plate 57 of the down carrier 47. The aperture has the same form as
the type, (see Figures IV and V).
The type remains in the recess while it is carried down the vertical passage
between cutters or knives 48 and 49, by which two sides opposite to each other are
dressed. The construction of this part of the machine is illustrated in the figures
on Sheet 6 of the drawings. The knife 48 is clamped between the oblique faces of
blocks 50, 51, fixed to the part 1 of the main frame. The knife 49 is held between
the oblique faces of the blocks 52, 53, which are in turn attached to an

page_text: adjustable block 54 having a channel 54° that receives a projection 55 of the
main frame. The clamping blocks 47 and 49 are channelled, as seen at 47*
and 49, respectively, for the escape of the metal scraped from the type. The
block 54 is attached to the projection 55 by a screw 56 passing through a
longitudinal slot 54° in the block and screwing into the projection. The plate 57
of the down carrier having the aperture 46 is attached to an adjusting block 58
fitting the top of the vertical slide 59 and adjustable thereon by means of a
screw 60, passing through a slot in the block.
The elide 60 is connected by a link 61 to a lever 62 fulcrummed at 63ª to a
vertically adjustable plate 63 and pushed upward by a spring 64 that surrounds
a rod 65 pivotted to the lever and passing through an eye 66 upon the
plate 63. The spring has bearing, at its ends, upon the eye 66 and forked end
of the rod. The lever is depressed by a cam 67 upon the main shaft. It will
be seen that the greater part of the working face of the cam is concentric
with the shaft so that the down carrier 47 remains in its lower position for a
time. During this stay in the lower position the type is pushed horizontally
from the recess 46 and the pusher withdrawn from the recess. The type is
pushed from the recess into the passage in which it passes between cutters or
knives above and below it, and by cutters by which its base is grooved; but before
passing between the cutters the jet or sprue 45* is broken from it (see Figures I,
II, III, IV & V).
In making types of different sizes it is necessary that the plate 57 should be
carried up to a different elevation so as to bring the aperture into a proper position
to receive the types, the plate being changed in cases where the size varies above a
certain degree. In order to enable this adjustment the eye 66 is upon the vertically
adjustable plate 63.
The plate 63 has lips 63 bearing against the edges of the standard 1ª and is
secured in position by a bolt 63° passing through a vertical slot in the standard and
screwing into the plate 63, thus the fulcrum 63 of the lever 62 is adjusted in
position for the purpose stated. 63ª is a screw working in a lug 63° of the plate 63
and bearing on top of the standard 1ª to give means of adjustment and vertical
support to the plate, (see Figures I, II, VI and XI).
While the
The jet projects from the passage or way in which the body of the type is
contained, and is snapped off by the blow of the breaker 68. The breaker is
attached to the block 58 on the slide 59 in such a position as to be above the jet as
the type is left by the pusher after discharge from the recess 46.
concentric part of the cam 67 is in contact with the lever 62 the recess 46 is level
with the passage into which the type is pushed. At the end of the concentric part
is a projection consisting preferably of an adjustable block 69 which causes the
lever and slide 59 to move rapidly down for a little distance and the breaker knocks
the jet from the type. The block 69 is shown by dotted lines to be connected to
the body of the cam by a screw passing through a slot in the block and into the
cam, and to have a heel screw 70 resting against the shoulder of the cam (see
Figure II).
71 is the bed plate of the horizontal way along which the types pass in the
dressing of the two other sides. This bed plate has steel plates 72 and 73, let in
flush with its top and made with oblique ends between which is set the knife or
cutter 75 by which the lower side of the type is dressed. 76 is a rib whose inner
edge bears against the edges of the plates 72 and 73 and which has shoulders
bearing against the ends of these plates.
77 are plates secured to the bed plate by screws 78 and bearing on the top edge
of the knife limiting the ascent of the knife. The knife is held up by a plate 79
beneath it, secured to the bottom of the bed-plate by a screw 80 (see Figures XVII
and XIX). The bed plate is supported on a standard of the main frame. The
top plate of the type passage is composed of two parts, both of them vertically
adjustable to suit types of different sizes.
Of these parts the one 81 is attached to the upright guide 82 of the down-feed

page_text: slide 44. The other part 83 is attached to the bed plate 71. These parts have
oblique ends between which is held the knife 84. The knife 83 is held down by a
plate 85 attached to the plate 83 by a screw 86. The lower edge of the knife may
rest upon a distance block near each end and having equal depth with the type
being dressed.
It is preferred that the surface of the passage against which the
tyres rub should be of steel to lesson friction and wear. The steel plate 87 may
be connected to the plates 83 by screws 88 and pressed down by a screw 89 between
them, thus giving means for vertical adjustment. 90 is an adjustable cutter by
which the lower end of the type is grooved. Additional cutters such as 90, are
provided for acting on both ends of the blanks, to produce, quods &c., which-carry
no letters. In Figure XIII the plate 83 is shown in position. In Figure XVII
said plate is removed, and in Figure XVIII the plate is shown inverted. As the
types pass through the passage their upper and lower sides are dressed and their
lower ends grooved, removing any roughness left in breaking off the jet.
91 is the pusher by which the types are pushed through the passage. The
pusher is secured to a block 92 secured to a slide 93, by screws 94 passing through
fongitudinal slots in the block and into the slide, and means of attachment allowing
the longitudinal adjustment of the block 92 on the slide. The slide has an arm 95
carrying an anti-friction roller 96 that is acted on by the cam 97 to throw the slide
to the left. The slide is moved to the right by a spring 98 surrounding a pin 99
and bearing at its ends upon the slide and a fixed projection 100 having a hole
through which the pin 99 passes. It will be understood that the line of types 45
are moved a small distance each time by the leftward movement of the pusher
(see Figures I. II. XIII and XVII).
101 is a stick to receive the types from the machine. The receiving end of this
stick is secured in the recess 103 by the cam 102, (see Figures III. XIII
and XVII).
The matrix 38 is secured to a bar or lever 104 in the usual manner, the lower
end of the matrix resting in an angular recess 105 in the top of the lever.
This recess is open on the outer side and upon that side is a pressure block 106
pivotted to the top of a link 107, whose lower end is pivotted to the lever 104.
108 is a screw passing loosely through the central part of the link and screwing
into the lever. By turning this screw inward the block 106 is pressed against the
matrix and the latter is held rigidly to the lever 104.
its
The pressure block has a usual recess near its upper end to receive the point 109
of the usual supporting spring 110. 111 is a usual lever fulcrummed to the frame
at 112 and resting against the front side of the lever 104. The lever 111 has near
upper end a slide pin 113 that bears against a shoulder 114 on the spring 110.
115 is a bell crank having a projection 116 bearing against the inner side of the
lever 111, near the lower end of the lever. The horizontal arm of the bell-crank
carries an anti-friction roller 117 which is pushed downward by a cam 118 on the
shaft 2. The action of the cam 118 is to push the upper end of the matrix hard against
the mould, such action taking place when a type is being cast. The matrix holding
lever 104 has a fulcrum bearing at 119 against the base plate 5 of the mould, so
that when the lower end of the lever 104 is pushed inward the top of the matrix
is moved outward from the mould disclosing the letter on the end of the type, and
leaving the type free to be pushed sideways from the mould.
120 is a sliding rod working in bearings 121. 122 is a spring on the rod whose
outer end presses against the outer bearing 121 and whose inner end presses against
a collar 123 fixed to the rod by a set screw or other means. 124 is a cross-head
on the rod 120, carrying at the upper end an adjustable piece 125 bearing against
the outer side of the lever 104 near the lower end of the lever. The push
piece 125 passes freely through the cross-head and is held in position by a screw,
as shown. It will be seen that when the cam 118 is inactive that the spring 122
will force the lower end of the lever 104 inward and carry the matrix away from
the mould. In order to assist the outer movement of the matrix the upper end of
the lever 111 is moved backward by a screw 126 in the cross-head 124, pressing

page_text: against its outer side near the lower end. The bracket 127 to which the bell-
crank 115 is fulcrummed is secured to the frame by a screw 128 passing through a
vertical slot in the bracket as indicated by dotted lines in Figure IX. The slide
rod may be held forward by a cam 129 working in a longitudinal slot of the rod
and turning on a pin 130. The cam is constructed to work against the outer
bearing 121 when in action (see Figures I, VI, IX and X).
In Figure XII, 131 is the nipple plate, and 132 the bracket or plate to which it
is connected. This device is in common use and has no direct bearing on the
present invention.
The shaft 2 carries a cam 133, which engages a friction roller 134. on the
lever 135, pivotted at 136 to the frame 1. Beneath the lever 135 is a vertical
rod 137 working through the lever 135, and surrounded by a spring 138, such
spring having bearing against the base of the machine, at its lower end and against
a nut 139 at its upper end. The whole arrangement is such that the cam forces
the lever 135 downward, through contact with the friction roller 134, while the
spring performs the function of elevating the lever as the cam revolves, and the
reduced portion of the latter comes in contact with the friction roller.
Pivotted to the lever 135 is a pump-operating rod 140, that is connected at its
upper end to the working beam 141, pivotted in a link 142, connected to a
bracket 143. The bracket 143 is mounted on top of the usual melting pot 144.
145 is the operating rod of the jet pump, said rod working in the cylinder 146.
No novelty is claimed herein in connection with the pump, or its actuating
devices, they being shown as one construction for supplying air under pressure to
the usual kettle. I shall presently describe a construction for supplying the air to
the kettle, in which construction I claim novelty as set forth in the claims.
I now come to the description of my novel melting pot and its parts.
The melting pot 144 for the type metal has flues 147, and a chimney 148 for
the escape of the products of combustion 149 is the chamber of the choker
valve 150, that closes the jet orifice of the nipple 151. The stem 152 of the
choker valve passes through the duct or passage 153 leading from the melting
pot to the chamber 149. The passage 153 has a valve seat 154 at the end com-
municating with the chamber 149 against which closes a valve 155 upon the
stem 152. It will be seen that when the valve 150 is closed the valve 155 is open
and vice versa (see Figures XXVIII and XXX). The end of the valve stem 152,
within the melting pot passes freely through a post 156, and is guided thereby.
157 is a downwardly extending arm on a lever 158, fulcrummed at 159 to the
pot 144. The arm 157 passes through an orifice in the valve stem 152, so that as
the lever is moved on its fulcrum, the valves 150 and 155 are opened and closed
alternately 160 is a bell-crank which is fulcrummed to the frame 161 and 162.
The upright arm 160° of the bell-crank is adjustably connected to the horizontal
arm 160 by a bolt or bolts 163 passing through a slotted lug 160°. The free end
of the arm 160 carries an anti-friction wheel 164 against which works a cam 165
on a cam shaft 166. 167 is a spring beneath the arm 160 which forces the arm
upward into its normal position, seen in Figure XXVI, the choker-valve being
then closed as seen in Figure XXVIII. As the arm 160° is forced down by the
cam 165 the choker-valve 150 is opened and the valve 155 closed.
168 is a duct leading from the valve or nipple chamber 149 to the closed
chamber 169 containing type metal. 170 is a pipe leading from the top of the
chamber 169 to a valve chamber 171. The chamber 171 communicates by a valve
port 172, at top, with a chamber 173 that communicates by a pipe or passage 174
with a reservoir 174", containing air or other fluid under pressure. The port 172
is closed by a valve 175 that is normally forced down upon its seat by a spring 176,
surrounding its guide stem 177, and with ends bearing respectively upon the valve
and top 178 of the chamber 171. When the valve 175 is open, the chamber 169 is
in communication with the pressure chamber and the type metal is forced from the
chamber 169 into the nipple chamber and the valve 154 being closed and valve 150
open, the metal is ejected from the nipple into the type mould.

page_text: The annular valve chamber 171 is closed at bottom by a piston 180 that works in
the cylinder 179 forming the lower part of the casing. The upper portion of the
piston is tubular and the axial bore or duct 181 extends from the top to a radial
passage or duct 182, that registers with port 183 extending through the side of the
cylinder 179 for the exit of air or other fluid from the chamber 171 at the proper
time, or when the piston 180 is in its lower position. 184 is a tubular piece that
forms the upward continuation or extension of the piston 180 but of a smaller
diameter and forming the inner wall of the annular chamber 171. The duct 181
also extends through the piece 184. At the upper end of the piece 184 is a valve
seat 184 upon which the valve 175 is seated at certain times to close the duct 181
and thus prevent the escape of air or other working fluid through the duct 181,
182, 183.
This position is shown in Figure XXIX, the piston 180 having been
raised until the seat 184ª of the tubular piece 184 is brought against the bottom of
valve 185 for closing the exhaust duct 181 and raising the said valve 175 from its
seat and opening the duct 172 and admitting the compressed fluid from the
chamber 173 to the chamber 171. As the exhaust duct 181 is closed the com-
pressed air can only escape from the chamber 171 through the duct 170 and into
the chamber 169 as before set forth.
In order to lift the piston 180 its lower end is provided with a lug 185 connected
by a rod or link 186 to one end of a lever 187 fulcrumed at 188 to the fixed
frame 161. The front end of the lever carries an anti-friction roller 189 acted
upon by a cam 190 on the shaft 166. 191 is a spring adapted to lift the front end
of the lever 187 and draw down the piston 180 for seating the valve 175 and closing
the port 172, and thus closing communication between the chambers 173 and 171.
The continued descent of the piston 180 to its lowest position draws the tubular
piece 184 from under the valve 175 and allows the fluid to escape from the
chamber 171 through the exhaust duct 182, 183.
The operation of this part of my machine may be briefly described as follows:-
The parts are shown in normal position in Figures XXVII, XXVIII
and XXXII, the valves 150 and 175 closing respectively the jet hole in the
nipple 151, and the communication between the chambers 173 and 171. At this
time the metal is flowing from the kettle into the chamber 169. The cam 190 now
depresses the forward end of the lever 187, which pushes up the piston 180, seats
the piece 184 against the valve 175 and lifts the valve from its main seat; at the
same time the valve 155 is closed and the valve 150 opened. There is now
continued communication from the compressed fluid vessel 184ª, chambers 173
and 171, duct 170, chamber 169 and duct 168, to the nipple chamber, and the metal
is forced from the latter by the pressure of the compressed fluid.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination, with a pusher adapted to push the type from the mould in a
substantially horizontal direction, of a down-carrier 47 having an aperture 46
adapted to receive the type, and vertical guides carrying knives 48, 49, between
which the type passes in its downward movement, substantially as and for the
purpose set forth.
2. The combination of the down-carrier 47 having a plate 57 with an aperture 46
adapted to receive the type, a vertical passage with knives 48, 49, upon the sides,
down which the plate and type pass, a pusher working horizontally and adapted to
pass through the recess and push the type therefrom, and a horizontal passage
having dressing knives 75, 84 at bottom and top.
3. The combination in a type machine, of the vertical and horizontal passages
with dressing knives upon opposite sides, the down-carrier 47 having a type
recess 46, the pusher 10 working in said recess, the horizontal pusher 91, and the
jet breaker 68 upon the down carrier slide 91, substantially as and for the purpose
set forth.

page_text: 4. The combination in a type machine, of the down-carrier 47 having a plate 57
with recess 46 adapted to receive the type, the pusher 10, a type passage between
guides as 50, 51, 52, 53, with knives 48, 49, a jet breaker, the slide 59 to which the
latter is attached, a horizontal dressing passage and a pusher 91, all constructed
and adapted to operate substantially as set forth.
5. The combination in a type machine, of the down-carrier 47 having the
plate 55 with type recess 46, the pusher 10, vertical guides with knives 48, 49 at
opposite sides, jet breaker 68, horizontal passage for the types, pusher 91 adapted
to push the type from the vertical into the horizontal passage, lever 62, the down-
carrier slide 59 carrying jet breaker and to which said lever is connected, and
rotary cam 67 with projection 69, all constructed and adapted to operate sub-
stantially as set forth.
6. The combination of the down-carrier 47 having a type recess 46, cutters
between which the down-carrier passes, a cam lever connected to the down-carrier
and having an adjustable fulcrum, a rotary cam acting on said lever, and a
pusher 10 received by said recess, all constructed and adapted to operate substan-
tially as set forth.
7. The combination of the down-carrier 47 having a type recess 43, cutters
between which the down-carrier passes, a cam lever connected to the down-carrier
and having an adjustable fulcrum, a rotary cam adapted to depress the lever, a
spring adapted to lift the lever, and a pusher adapted to push the type from the
recess, substantially as set forth.
8. The combination with the down-carrier 47 having a type recess, cutters
between which the down-carrier passes, and a pusher received by the recess of a
cam lever connected to the down-carrier, a cam adapted to depress the lever, a stop
rod carrying a spring adapted to lift the lever and passing loosely through an eye,
and a nut upon the rod adapted to impinge against the edge and limit the upward
movement of the lever, substantially as set forth.
9. The combination with the lifting piece 6 of the mould, of the lifting rod 28,
the cam lever 27 having an adjustable fulcrum, a cam adapted to depress the lever,
bolt 29 bearing against or attached to the lever and passing loosely through the
base 1, lifting spring 24 and a stop nut 29" on the bolt beneath the base, substantially
as set forth.
10. The combination with the matrix levers 104 and 111, the former being
located in front of the latter, and the spring device for pushing their lower ends
inward substantially as described, of the bell crank 115 and cam 118 adapted to
press the matrix to the mould and to retract said spring device, substantially as
set forth.
11. In a mould for type machines, the combination of stationary and hinged
members forming the lower and upper parts of the mould, of a pusher between two
members, and a screw on the hinged member provided with a conical point adapted
to engage with a stop carried by said pusher, substantially as and for the purpose
set forth.
12. In a mould for type machines, the combination of stationary and hinged
members forming the lower and upper parts of the mould, a pusher working
between the two members, such pusher being provided with an opening and a slot,
a conically pointed screw secured in the movable portion of the mould and adapted
to engage with the opening in the pusher, and a fixed pin on the stationary member
arranged in the slot of the pusher, adapted to limit the movement of such pusher,
substantially as and for the purpose set forth.
13. The combination in a type casting machine, of the melting kettle, compressed
fluid reservoir, chamber 173 in constant communication with the reservoir,
chamber 171 having an exhaust valve and communicating with chamber 173
through duct 172, valve 175 adapted to close the duct 172, a chamber 169 in
constant communication with the chamber 171, a nipple chamber in constant com-
munication with chamber 169 and having communication with the kettle by a ducț
governed by a valve as 155, all substantially as set forth.

page_text: 14. The combination in a type casting machine, of a melting kettle, a reservoir
for fluid under pressure, chambers 173 and 169 communicating respectively with
the fluid reservoir and nipple chamber, a nipple chamber communicating with the
melting kettle and the outer air, and the chamber 171 communicating with the
chambers 169 and 173 and the outer air, valves for closing and opening communica-
tion between the chambers 173 and 171, chamber 171 and the outer air, the melting
kettle and nipple chamber and the nipple chamber and the outer air, and means for
alternately effecting the simultaneous closing and simultaneous opening of said
valves, the valves between the chambers 173 and 171, and the nipple chamber and
outer air, being closed when the remaining valves are open, and vice versa,
substantially as and for the purpose herein set forth.
15. The described combination in a type casting machine, of a melting kettle, a
nipple having a jet valve 150 and a valve 155, the latter adapted to close com-
munication with the melting kettle, a closed vessel in communication with the
nipple chamber and with a chamber 171, chamber 171 having an exhaust valve, a
piston 180 working in the chamber and actuating the exhaust valve, a reservoir
for fluid under pressure, a chamber 173 in communication with the reservoir, a duct
leading from the chamber 173 to chamber 171, and a valve 175 governing said duct
and governed by the piston 180, substantially as set forth.
16. In a type casting machine, the combination of a melting kettle, a chamber
communicating with a reservoir of compressed fluid, a closed metal chamber within
the melting kettle and communicating therewith and with the compressed fluid
chamber, a discharge nozzle communicating with the closed metal chamber, valves
controlling the communications between the closed metal chamber and compressed
fluid chamber and the closed metal chamber and the melting kettle, and means for
opening and closing said valves alternately, substantially as set forth.
17. In a type casting machine, the combination of a melting kettle, a chamber
communicating with a reservoir of compressed fluid, a closed metal chamber within
the melting kettle and communicating therewith and with the compressed fluid
chamber, a discharge nozzle communicating with the closed metal chamber, valves
controlling the communications between the closed metal chamber and compressed
fluid chamber and the closed metal chamber and the melting kettle, levers con-
nected to said valves, and cams mounted on a suitable cam shaft and engaging said
levers, whereby the valves will be alternately opened and closed for the purpose
herein set forth.
A 1002
JAMES GABRIEL PAVYER,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.