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Патент USA US2064734

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Dec. 15, 1936.
w. |_. CRAWFORD
2,064,734
FLAT STERECTYPE METAL DISTRIBUTOR
Filed Jan. 28, 1935
4 Sheds-‘Sheet 1
ATTOR N EY
Dec. 15, 1936.
w. L..CRAWFORD
2,064,734
FLAT STEREOTYPE‘METAL DISTRIBUTOR
Filed Jan. 28, 1955
4 Sheets-Sheet 2
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INVENTOR
ATTOR N EY
Dec- 15, 1936-
w. L. CRAWFORD
2,064,734
FLAT STEREOTYPE METAL DISTRIBUTOR
Filed Jan. 28, 1955
4 Sheets-Sheet 3
mm Lzmwdmw
BY
ATTORN EY
I Dec.‘ 15, 1936.
W. L. CRAWFORD
2,064,734 '
FLAT STEREOTYPE METAL DISTRIBUTOR
Filed Jan. 28, 1935
4 Sheets-Sheet 4
455
67/
$8
ATTORN EY
2,064,734
Patented Dec. 15, 1936
UNE'E‘ED STATES PATENT OFFIQE
2,064,734
FLAT STEREOTYPE METAL DISTRIBUTOR
William L. Crawford, Plain?eld, N. J.
Application January 28, 1935, Serial No. 3,832
12 Claims.
The invention relates to apparatus for the
casting of stereotype plates and more particu
larly to equipment for the delivery and distribu
tion of the casting metal to a stereotype casting
5 box.
The primary object of my invention is to- pro
vide a stereotype casting apparatus by which
molten metal is received from a melting pot and
delivered to a stereotype casting box in a partic
ularly practical and satisfactory manner, in
which apparatus means are provided for the re
turn to the melting pot of any excess metal.
A further object of my invention is to provide
in apparatus of the character described means
15 for dispensing the molten metal by which to'
simultaneously disperse the slag or other foreign
matter in the molten metal, thus to prevent the
entrance of same into the distributing apparatus.
Another object of my invention is to provide a
stereotype casting apparatus comprising means
for the selective distribution of the molten metal
into a stereotype casting box by which to ob
viate the various objectionable results now oc
curring in such processes so as to‘ produce a su
25 perior stereotype plate.
The invention will be fully and comprehen
sively understood from a consideration of the
following detailed description when read in con
nection with the accompanying drawings which
30 form part of the application, with the under
standing, however, that the improvement is ca
pable of extended application and is not con
?ned to the exact showing of the drawings nor
to the precise construction described and, there
35 fore, such changes and modi?cations may be
made therein as do not a?ect the spirit of the
invention nor exceed the scope thereof as ex
pressed in the appended claims.
In the drawings:
Fig. 1 is a side elevational view illustrating the
40
practical use of my apparatus in conjunction
with a melting pot and a stereotype casting box.
Fig. 2 is a longitudinal vertical section view
thru the distributor arm of my apparatus.
Fig. 3 is a plan View, partly broken away, in
45
section of the distributor arm as shown in Fig. 2.
Fig. 4 is a plan view of the distributing head;
and
Fig 5 is an end elevational view of the dis
50 tributing head, as shown in Fig. 4, partly broken
away.
Referring now to the drawings for a more
detailed description thereof, and particularly to‘
Fig. 1, illustrating the general arrangement and
55 application of my apparatus, a brief description
(01. 22—2)
of same follows. It will be noted that two posi
tions of the apparatus illustrated are shown.
The position illustrated in full lines illustrates
the apparatus arranged for the delivery of metal
to the casting box. The dotted line position of
the apparatus shows same in its inoperative po
sition, the casting box being open preparatory
to the removal of the ?nished stereotype plate.
The numeral 6 indicates a metal melting furnace,
the metal pot ‘l of which contains an adequate 10
supply of molten stereotype casting metal. My
stereotype casting apparatus comprises in gen
eral a base 8 ‘upon which is vertically supported
a standard 9 having an adjustable bracket l0
secured thereon. The bracket ID includes a pair
of arms H upon which a distributor arm I2 is
swingably mounted by means of the trunnions l3.
The distributor arm l2 comprises in general an
intermediate tubular structure M at one end of
which is provided a metal receiving ladle I5. To
the opposite end of the intermediate structure
M is affixed at distributing head Hi, from which
molten metal is supplied to a conveniently ar
ranged stereotype casting box I1.
Since the stereotype casting box l'l illustrated 25
is of the usual construction and arrangement
now in general use, a detailed description of same
is not required. It is however to be noted that
the hingedly connected members l8 comprise
the casting moldfor the formation of the stereo 30
type plate in conjunction with a matrix l9 dis
posed therein. The free edge of one of the mem
bers I8 is bevelled so as to form a tunnel-like
structure for the reception of the molten metal
from the distributor apparatus of my invention. 85
The stereotype‘casting box, as illustrated, is of
the type designed to produce ?at stereotype plates.
It will however be obvious after a more detailed
description of my apparatus is given that by an
appropriate arrangement of some of the elements 40
therein the apparatus may be readily adapted for
use in conjunction with curved or semi-cylindri
cal stereotype plates.
The trunnions l3 provide for the swinging of
the distributor arm l2 so as to adjust the eleva 45
tion of the distributor head IS in relation to the »
casting box l1, and likewise to facilitate the dip
ping of the ladle l5 into the molten metal within
the melting pot 1. To further assist in the
manipulation of the distributor arm l2 a counter
50
balance is provided which comprises a ?exible
cable 20, one end of which is attached to the
distributor end of arm l2. Asheave 2| rotat
ably mounted on the upper portion of standard
9 guides in the cable 20 as the arm I2 is swung 55
2
2,064,734
in either direction. A counterweight 22 is secured
to the other end of cable 20 by which to hold the
distributor arm I2 in any desired position. An
adjustable rod 23 mounted on bracket I0 and
engaging with the distributor arm I2 in its lower
most position provides a positive stop for same.
A detailed description of the distributor arm I2
of my apparatus now follows, during which at
tention is directed particularly to Figs. 2 and 3.
10 As aforementioned, the distributor arm I2 com
prises the intermediate tubular structure I4, the
metal receiving ladle I5 and the distributor head
I6, the joint function of which is to receive and
convey from a suitable melting pot ‘I the molten
15 metal and to deliver same via the distributing
head to the stereotype casting box. The metal
receiving ladle I 5, disposed at one end of the arm
I2, is preferably of cylindrical shape, the sides
of which converge into a constricted passage 24,
20 the axis of the ladle being transverse to the arm
I2. An oblong aperture 25 is provided in the
upper portion of the ladle I5 from the rear edge
of which extends a plate 26, the upper surface
of which is tangential with the periphery of the
25 ladle I5 and in substantial parallelism with the
longitudinal axis of the arm I2. The edge of the
plate 26 parallel to the longitudinal side of the
aperture 25 is bevelled so as to provide a sharp
edge 21. A function of the plate 26 is to remove
30 or disperse the slag ?oating on the surface of the
molten metal during the dipping of the ladle I5.
This action is illustrated in Fig. 1 from which
it will be apparent that as the ladle I5 is being
submerged the
35 plate 26 to be
of the ladle I5
surface of the
edge 21 is the ?rst portion of the
submerged. During the lowering
the edge 2'! cuts a line in the slag
molten metal and thereafter an
appreciable area of the molten metal surface is
cleared, the slag becoming entrapped below the
40 plate 26 or is dispersed beyond same. When the
entire ladle is submerged to receive the metal
into the aperture 26 the metal will naturally
flow from the region of the cleared surface thus
to prevent any slag entering the ladle I5.
In order to permit the control of the molten
45
metal from the ladle I5 into the distributor arm‘
a valve 28 is provided. This valve is of the rotat
able tapered plug type, the axis of which is ar
ranged transverse of the arm I2. The nuts 29
50 provide adjustment for the tapered plug of the
valve 28, which is provided with a thru radial
slot 30 in registry with the passage 24. To facili
tate the convenient operation of the valve 28 from
a position normally occupied by the operator a
55
‘valve operating mechanism is provided which
comprises an arm 3| ?xedly attached to the valve
plug, a connecting rod 32 and a lever handle 33
arranged and connected substantially as shown
in Fig. l. The lever 33 is positioned for the con
60 venience of the operator near the distributing
head of my apparatus and is pivotally mounted on
the arm I2. The connecting rod 32 has its ends
hingedly connected respectively to the lever
handle 33 and the valve arm 3|. The valve 28 is
65 provided with stops, not shown, by which the full
open or closed position of said valve is deter—
mined.
Attention is directed to Fig. 2 in which the
structure and arrangement of the intermediate
member I4 and the distributing head I6 are
shown. In both of the members I4 and I6 a pair
of longitudinal passage-ways is provided. The
upper passage-way 34 connects at one end with
the valve 28, the other end thereof terminating
in the interior of the distributor head I6 thru an
abrupt vertical passage 35. The lower passage
way 36 extends from the interior of the distribu
tor head I6 to terminate obliquely as at 33a out
side the member I4. The terminal 35a is so dis
posed near the ladle end so that metal passing
thru the lower passage 36 is delivered into the
melting pot ‘I.
The sides and bottom of the passage 36 diverge
toward the distributing head I6 so as to form
therein a reservoir 31, the capacity of which is 10
adequate to contain sufficient molten metal to
complete the casting of an entire stereotype plate.
The function of the passages 34, 35 and 36 in
cooperation with the ladle I5 and the reservoir 37
will be more obvious from an inspection of Fig. l 15
in which both the operative and inoperative
positions of the distributor arm I2 are illustrated.
As previously described, the metal is received into
the ladle I5 while the distributor arm I3 is in an
appropriate oblique position, the valve 28 being
closed.
The distributor arm I2 is then swung
down to approximately horizontal position so that
the distributor head I6 thereof is in position over
the stereotype casting box ll. The valve 28 is
then opened by swinging the lever handle 33
whence the metal runs thru the upper passage 34
and the vertical passage 35 into the reservoir 31,
the arm I2 being at a sui?cient inclination to
permit the free running of the molten metal.
The metal is then decantered from the reservoir -
31 by means hereinafter described. In order to
insure an adequate supply of molten metal a
greater quantity than is actually required is con
Veyed to the reservoir 31. After the casting
process has been completed the excess metal is ’
returned to the melting pot ‘I by again raising the
distributor head or the arm I2 so that the excess
metal remaining in the reservoir 37 will flow back
to the melting pot 1 thru the lower passage 35.
It is of course obvious that in order to prevent
the chilling of the metal during this handling
that the distributor arm I2 may be equipped with
such auxiliary heating elements and suitable
insulating material as to prevent the occurrence
of this effect.
The detailed description of the arrangement
and controlling mechanism of the distributor
head I6 now follows, during which attention is
directed to Figs. 2, 4 and 5. It is to be observed
that the function of this portion of my apparatus
is to regulate and control the supply of the molten
metal into the stereotype casting box as desired
by the operator. For this purpose a series of
valves 38 of the tapered plug type are arranged
in a row across the vertical end of the distributor
head I6. vThe axes of valves 38 are in substantial
parallelism with each other and approximately
at right angles to the longitudinal axis of the
arm I2. The numeral 39 indicates the rotatable
valve plug which has an axial bore 40 extending
from its lower end which when the valve is in
open position is connected to the reservoir 3'!
thru the port 4|. The port 4| is cut thru the end
wall of the distributor head I5 and thru the body
of the valve 38 to terminate in the axial bore 40 of
the valve plug. Each valve 38 is equipped with a
lever arm 42, which arm is free to rotate on the
shank of the valve plug 39, the engagement of
these members being effected by the insertion of
a slidable pin 43. The pin 43 is slidably mounted
in the center portion of the lever arm 42 and is
provided with grooves 44 which, in conjunction
with the ball catch 45, determine the position of
the pin 43.
A block 46 attached to the pin 43 and slidably
2,064,734
mounted in a slot 47 provides a convenient means
for moving the pin 43, which when it is pushed
forward engages the lever arm 42 onto the shank
of the valve plug 39 and in the retracted position
disengages these members.
In order to provide for operation of all of the
erally of the distributor head to slide in blocks
tive position the tray 65 is'swung to the position
96 and the cross bar 48, urges the latter to the
left, as shown in Fig. 4, thus to close the valves.
20 A convenient means is arranged on the cross
bar fill so that the valves may be held in open
position and instantly closed as desired by the
operator. This means comprises a post 56 swiv
elly mounted on the bar 48, into which is ?tted
shown in full line in Fig. 1 by moving the lever
10
handle 61.
What is claimed as new is:
1. In a machine of the character described,
means swingably mounted and including a ladle
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a
body extending forwardly from said ladle, said
body having a passageway thru which metal may
?ow from said ladle by tilting of said means in
the appropriate direction, said means including a
reservoir into which the metal may flow from
said passageway, said means further including a
part having a second passageway below said ?rst
passageway and extending rearwardly from said
reservoir and adapted to return unused metal
a set screw 5'! adapted to engage a stop bar 58
into the melting pot.
slidably retained in the post 55.
2. In a machine of the character described,
means swingably mounted and including a ladle
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a
A leaf spring
59 carried on the bar 48 presses the right end of
the stop bar 53 downward against a stop 69. A
stop block (ii is mounted on the distributor head
30 It to provide a shoulder against which the stop
bar 58 engages in normal position. In consid
ering the operation of the distributor head valve
mechanism it is to be observed that the valves
as shown in Fig. 4 are in closed position and in
Fig. 5 are in open position. In preparation for
the pouring or charging process the stop bar 58
is locked in the post 56 in such position as to de
termine the extent of the opening of the valves
38 when the latter is engaged with the block 68.
40 The stop 54 on the quadrant 52 may assist in this
setting. The cross bar d8 is then moved to the
right by the handle 52 until the end of the stop
bar 53 engages with the block 6i , when the han~
dle 62 is released. The valves are thus opened
to a predetermined position, as shown in Fig. 5,
during which the metal in the reservoir 37 is
being delivered to the stereotype casting box ll.
As soon as the casting is completed the operator
may instantly close all of the valves by pressing
50 ‘down the right end of the stop bar 593, whence
the spring 55 moves the cross bar 138 to the left,
thus closing the valves, as shown in Fig. 4.
To facilitate the even distribution of the metal
from the respective valves 38 into the casting
box ii’ an elongate funnel 63 is mounted on the
lower portion of the distributor head it.
The
sides of the funnel 63 are disposed at an oblique
angle to diverge into an enlarged opening at the
top thereof to receive the molten metal from
the valves 38.
To further assure the even dis
tribution of the metal in ?owing thru the funnel
63 the lower side of the funnel is provided with
a series of convex mounds 6A suitably arranged
in relation to the bore 40 of the valve 38 so as to
cause the metal issuing from same to be diffused
65
or spread out as illustrated in Fig. 5. The funnel
(i3 will thus cause the molten metal issuing from
the distributor head it to be supplied to the
casting box 9? in a continuous ribbon-like stream
so that the entire breadth of the casting box form
25
body extending forwardly from said ladle, said
body having a passageway thru which metal may
flow from said ladle by tilting of said means in
the appropriate direction, said means including
a reservoir into which the metal may flow from
said passageway, said reservoir having a series
of discharge ori?ces thru which metal may flow
into a stereotype casting box, and a series of valves
in said ori?ces.
3. In a machine of the character described,
means swingably mounted and including a ladle 40,
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a
body extending forwardly from said ladle, said
body having a passageway thru which metal may
flow from said ladle by tilting of said means in
the appropriate direction, said means including a
reservoir into which the metal may ?ow from said
passageway, said means further including a part
having a second passageway below said ?rst pas
sageway and extending rearwardly from said 50
reservoir and adapted to return unused metal into
the melting pot, said reservoir having a series of
discharge ori?ces thru which metal may flow into
a stereotype casting box, and a series of valves
in said ori?ces.
4. In a machine of the character described,
means swingably mounted and including a ladle
adapted to be dipped into a melting pot con
taining molten metal, a plate extending from the
upper edge of said ladle and tangential with 60
the periphery thereof, a body extending forward
ly from said ladle, said body having a passage
way thru which metal may ?ow-from said ladle
by tilting of said means in the appropriate direc
tion, said means including a reservoir into which 65
the metal may flow from said passageway.
5. In a machine of the character described,
means swlngably mounted and including a ladle
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a 70
receives a uniform amount of metal at the same
body extending forwardly from said ladle, said
time. This feature of supplying the molten metal
into the stereotype casting box assures a superior
body having a passageway thru which metal may
flow from said ladle by tilting of said means in the
appropriate direction, said means including a
reservoir into which the metal may ?ow from said 75
product.
75
so that when swung under the funnel 63, as shown
in dotted line in Fig. 1, the tray may receive the
metal dripping from the funnel. In the opera
predetermined. A tension spring 55, having its
ends respectively attached to the distributor head
60
of metal dripping from the funnel 63 after the
completion of the process a drip tray 65 is piv
otally mounted on the distributor head It by the
pivots 66. The tray 65 is arcuate in cross-section
valves at one time a cross bar 158 is disposed lat
439 and has each of the lever arms t2 pivotally
10 connected to it by means of the stud screws 50
slidably engaged in slots 5! cut in the lever arm
42.‘ One of the arms 42 is extended to cooper
ate With a quadrant 52 in which a series of holes
53 are arranged to receive a stop 54 by which the
15 extent of the opening in the valves 38 may be
55
3
In order to prevent the waste and annoyance
4
2,064,734
passageway, said reservoir having a series of dis
charge ori?ces thru which metal may ?ow into a
stereotype casting box, a series of valves in said
ori?ces, and means secured to said reservoir and
valves simultaneously, and means for holding
said controlling means at a selected position.
9. In a machine of the character described,
means swingably mounted and including a ladle
extending downwardly and forwardly therefrom
adapted to be dipped into a melting pot contain
and adapted to receive metal from said discharge
ori?ces.
ing molten metal, said means including also a
6. In a machine of the character described,
means swingably mounted and including a ladle
adapted to be dipped into a melting pot con
taining molten met-a1, said means including also
a body extending forwardly from said ladle, said
body having a passageway thru which metal may
flow from said ladle by tilting of said means in
15 the appropriate direction, said means including
a reservoir into which the metal may flow from
said passageway, said reservoir having a series
of discharge ori?ces thru which metal may flow
into a stereotype casting box, a series of valves in
20 said ori?ces, and means secured to said reservoir
and extending downwardly and forwardly there
from and adapted to receive metal from said dis
charge ori?ces, the last-mentioned means includ
ing means for distributing or diffusing.
25
7. In a machine of the character described,
means swingably mounted and including a ladle
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a
body extending forwardly from said ladle, said
30 body having a passageway thru which metal
may ?ow from said ladle by tilting of said means
in the appropriate direction, said means includ
ing a reservoir into which the metal may ?ow
from said passageway, said reservoir having a
35 series of discharge ori?ces thru which metal may
flow into a stereotype casting box, a series of
valves in said ori?ces, and means for controlling
all of said valves simultaneously.
8. In a machine of the character described,
40 means swingably mounted and including a ladle
adapted to be dipped into a melting pot contain~
ing molten metal, said means including also a
body extending forwardly from said ladle, said
45 body having a passageway thru which metal may
flow from said ladle by tilting of said means in
the appropriate direction, said means including
a reservoir into which the metal may flow from
said passageway, said reservoir having a series
50 of discharge ori?ces thru which metal may ?ow
into a stereotype casting box, a series of valves
in said ori?ces, means for controlling all of said
body extending forwardly from said ladle, said
body having a passageway thru which metal may
?ow from said ladle by tilting of said means in the
appropriate direction, said means including a 10
reservoir into which the metal may ?ow from
said passageway, said reservoir having a series
of discharge ori?ces thru which metal may ?ow
into a stereotype casting box, a series of valves
in said ori?ces, and means for controlling all of 15
said valves simultaneously, each of said valves
including means connecting it with said control
means and readily disconnectible therefrom.
10. In a machine of the character described,
means swingably mounted and including a ladle 20
adapted to be dipped into a melting pot contain
ing molten metal, said means including also a
body extending forwardly from said ladle, said
body having a passageway thru which metal may
?ow from said ladle by tilting of said means in 25
the appropriate direction, said means including
a reservoir into which the metal may ?ow from
said passageway, said reservoir having a series
of discharge ori?ces thru which metal may ?ow
into a stereotype casting box, a series of valves 30
in said ori?ces, means secured to said reservoir
and extending downwardly and forwardly there
from and adapted to receive metal from said dis
charge ori?ces, and a pivotally mounted plate
adapted to be swung under said forwardly and 35
downwardly extending means.
11. In a machine of the character described,
a reservoir having a series of discharge ori?ces
thru which metal may ?ow into a stereotype
casting box, and a series of valves in said ori?ces, 40
said series of valves having means for diffusing
the molten metal.
12. In a machine of the character described,
a reservoir having a series of discharge ori?ces
thru which metal may flow into a stereotype 45
casting box, and a series of valves in said ori?ces,
and distributing means secured to said reservoir
and extending downwardly and forwardly there
from, and diffusing means on said distributing
means whereby to diffuse the molten metal dis 60
charged from said ori?ces.
WILLIAM L. CRAWFORD.
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