US2944306A - Machine for casting printing plates - Google Patents

Machine for casting printing plates Download PDF

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Publication number
US2944306A
US2944306A US512822A US51282255A US2944306A US 2944306 A US2944306 A US 2944306A US 512822 A US512822 A US 512822A US 51282255 A US51282255 A US 51282255A US 2944306 A US2944306 A US 2944306A
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United States
Prior art keywords
machine
tollison
printing plates
casting
sheets
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Expired - Lifetime
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US512822A
Inventor
Paul L Tollison
Charles L Richards
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wood Newspaper Machinery Corp
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Wood Newspaper Machinery Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to US512822A priority Critical patent/US2944306A/en
Priority to GB9536/56A priority patent/GB836880A/en
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Publication of US2944306A publication Critical patent/US2944306A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41D—APPARATUS FOR THE MECHANICAL REPRODUCTION OF PRINTING SURFACES FOR STEREOTYPE PRINTING; SHAPING ELASTIC OR DEFORMABLE MATERIAL TO FORM PRINTING SURFACES
    • B41D3/00—Casting stereotype plates; Machines, moulds, or devices therefor
    • B41D3/04—Moulds, e.g. horizontal, for casting curved, e.g. semi-cylindrical, plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/33—Stereotype-plate finishing

Definitions

  • This application relates to machines for casting printing plates of the type wherein segmental cylindricalprinting plates are cast against papier-mache matrices, trimmed to accurate size and exact thickness, properly grooved and beveled for attachment to the cylinders of the printing press and cooled.
  • the principal object of the invention is to provide a machine of this character of simple, compact design with the mechanisms for carrying out the several operations so co-ordinated that one operator can produce finished plates ready for use in a matter of seconds.
  • a further object to the invention is to provide a machine which is substantially automatic so that the several operations will take place in properly timed sequence without failure and with absolute accuracy even when the machine is operated by an inexperienced operator.
  • a further object ofthe invention is to provide a machine in which the various instrumentalities are so dei signed as to insure absolute safety to the operator, regardless of his inattention and failure to observe the customary precautions.
  • FIG. 1 Fig. l is a plan view of the entire machine
  • Fig. 2 is a side elevation of the entiremachine
  • Fig. 3 is a side elevation of the pneumatic metal pump, partially in section
  • v Fig. 4 is a side elevation looking from the left of Fig. 3 of the upper part of the pneumatic'pump with parts broken away
  • Fig. 5 is a detail view of a part of the pump operating connections and controls; I i
  • Fig. 6 is a plan view of the casting box
  • Fig. 7 is an elevation of the parts shown in ing from the left of Fig. 2; i
  • Fig. 8 is a section along line 8-8 of Fig. 7;
  • Fig. 9 is a section along line 9-9 of Fig. 6;
  • Fig. 10 is a perspective of the nozzle and its wiper with parts omitted; I
  • Fig. 11a is a longitudinal section of the of the machine
  • Fig. 11b is a continuation of Fig. 11a, showing the plate trimming and cooling sections;
  • Fig. 12 is a transverse section along line 12-12 of Fig. 11a with parts broken away; V a
  • Fig. 13 is a section along line 13-13 of Fig. l2,partially broken away; p
  • Fig. 14 is a similar view along'line14-14 of Fig. 12;
  • Fig. 6 lookcasting section Fig. l9is a detail view, partly in section, along line 19-19 of Fig. 18;.
  • Fig. 20 is. a detail view partly in section of the plate position stop
  • Fig: 21 is a detail section along line 21-21 of Fig. 20';
  • Fig. 22 is a longitudinal section of the plate lifting mechanism along line 22-22 of Fig. 25;
  • Fig. 23 is a transverse section along line 23-23 of Fig. 22;
  • Fig. 24 is a transverse section along line 24-24 of Fig. 22; i
  • Fig. 25 is a transverse section along line 25-25 of Fig. 22;
  • Fig. 26- is a sectional detail along line 26-26 of Fig. 25
  • Figs. 27 and 28 are diagrammatic views showing the operations of the plate positioning mechanism
  • Fig. 29 is a detail section on line 29-29 of Fig. 11a;
  • Fig. 30 is an end elevation of the platecooling stand; .Fig. 31 is a fragmentary elevation of the plate stop device; r I I Fig. 32 is a section along line 32-32 of Fig.33; Fig. 33 is'a plan view ofthe cooling stand; Y Fig. 34 is a detail view of a portion-of the control mechanism; and
  • the pump comprises a main casting 1 having at its lower end a cylinder 2 which is normally submerged in the molten metal in the furnace 3.
  • the pump piston 4 consists of a metal disk whose outer perimeter is grooved as is customary in pumps of this character.
  • the piston 4 is mounted on the piston rod 5 adjacent its end for limited lost motion above a disk, 6 attached to the lower end of the piston rod.
  • the ,diskg6 is provided with a marginal flange which is ground to seat. against a flange 7 on the under side 'of the piston 4 's'urrounding holes 8.
  • Fig. 15 is a similar view along line 15-15 of 'Fig.-'l 2;
  • . is actuated by compressed air supplied to a cylin projects .rearwardly from the main frame casting 11 to which the stationary half of the mold 12 is fixedly attached.
  • the'passage 9 is provided with an extension 13 which extends upwardly between the two parts of the bifurcated bracket 10 and forwardly to a position immediately'ove'rlying the opening between the two halves of the mold,'as shown more particularly in Figs. 7 and 8.
  • the extension 13 is providedwith a discharge spout 14 of arcuate configuration overlying the opening into the mold and with a pivoted cutoif lip 15 which normally closes the discharge spout when the mold is open but is swung back from beneath the discharge spout when the mold is closed and locked, as will be later described. 1 Referring a'gain to 'Figs.
  • the pump piston 16 supported at the upper end of the pistonrod on a casting 1 7 fixedly mounted on top bf-the casting 1.
  • the casting 17 is provided with a forwardlyfiextending portion 18 uponwhich is mounted the valve mechanism and other parts for controlling the operation of the pump.
  • the compressed air' from'a source, not shown, is supplied to th intake pipe 19 atapproximately -100 pounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Description

d July 12, 1960 P. L. TOLLISON ETAL MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 I 19 Sheets-Sheet 1 FIG. 2
INVENTORS PAUL L. TOLLISON BYCHARLES L. RICARDS w {M MNIM ATTO R N EYS July 12, 1960 P. L. TOLLISON ETA]. 2,944,305
MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 19 Sheets-Sheet 2 ATTQRNEYS July 12, 1960 P. L. TOLLISON ETAL MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 19 Sheets-Sheet 3 PAU L L. TOLLISON CHAR LES L. RICARDS ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 4 Filed June 2, 1955 INVENTORS PAUL L. TOLLISO CHARLES L. RICAR 24%;, M, M [3 472. 4.
ATTORNEYS FIG. 9
WAVI/IA July 12, 1960 P. 1.. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES l9 Sheets-Sheet 5 Filed June 2, 1955 PAUL L. TOLLISON BY CHARLES L.R|CARDS ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES l9 Sheets-Sheet 6 Filed June 2, 1955 BY M BM' EN EN NNN ATTORNEYS July 12, .1960
Filed June 2, 1955 P. 1.. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 7 INVENTORS PAUL L. TOLLISON CHARLES L. RICARDS FIG '2 BY 5M.
ATTORNEYS July'12, 1960 P. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 8 Filed June 2, 1955 llllllllll |l.\\\-
INVENTORS PAUL L. TOLLISON CHARLES L. RICARDS I 1 (II I IIIV.
ATTORNEYS P. 1.. TOLLISON ET AL 2,944,306
MACHINE FOR CASTING PRINTING PLATES July 12, 1960 19 Sheets-Sheet 9 Filed June 2, 1955 INVENTORS PAUy. 1.. TOLLISON CHARLES L.R|CARDS flriM-Jl MIBM'US PZV ATTORNEYS July 12, 1960 Filed June 2, 1955 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 10 ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL MACHINE FOR CASTING PRINTING PLATES l9 Sheets-Sheet 11 Filed June 2, 1955 INVENTOR? PAUL L. TOLLI ON B$HARLES LAR|CARD$ Mr V) ATTORNEYS July 12, 1960 PL. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 12 Filed June 2, 1955 INVENTORS PAUL L. TOLLiSON BY CHARLES L4 RICARDS 6M, M 712 1;,
ATTORNEYS July 12, 1960 P. L. TOLLISON ET AL ,3 5
MACHINE FOR CASTING PRINTING PLATES Filed June 2,1955 19 Sheets-Sheet 13 FIG. 23
INVENTORS PAUL L. TOLLISON CHARLES L. RICARDS ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 I 19 Sheets-Sheet 14 INVENTORS PAUL L.YTOLLIS BY CHARLES RICA 2M4 M,M 1L4. r 1% ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 19 Sheets-Sheet 15 FIG. 26
IN V EN TORS PAUL L. TOLL IS ON By CHARLES L.R|CARDS ATTOR N EYS July 12, 1960 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 16 Filed June 2, 1955 ATTORNEYS July 12, 1960 P. L. TOLLISON ETAL 2,944,306
MACHINE FOR CASTING PRINTING PLATES Filed June 2, 1955 19 Sheets-Sheet 1'7 FIG. 30
elm-fry IQAEEM 5 \\'m|\\ HT 2n 201-1;
:1 FIG. 32
INVENTOR S PAUL L. TOLLISON CHARLES L. RICARDS ATTORNEYS y 12, 1960 P. L. TQLUSQN E1- AL 2,944,306
MACHINE FOR CASTING PRINTING PLATES mm QE INVENTORS UL L. TOLLISON CHARLES L. RICARDS BY EM,&N'MHBMMJQ,Q-/
19 Sheets-Sheet l8 lllllll ll Filed June 2, 1955 ATTORNEYS July 12, 1960 P. L. TOLLISON ET AL 2,944,306
MACHINE FOR CASTING PRINTING PLATES 19 Sheets-Sheet 19 Filed June 2, 1955 TIME SWITCH Patented Jul 12,1960
w p r 1 2,944,30 V MAcH'iNE' For: CASTING PRINTING PLATES Paul L. Tollison, North Plainfield, and Charles L. Ricards, South Plain'field, N.J., assignors to Wood Newspaper Machinery Corporation, Plainfield, NJ., a corporation of Virginia Filed June 2, 1955, Ser. No. 512,822
15'Claims'. 01. 22-3 This application relates to machines for casting printing plates of the type wherein segmental cylindricalprinting plates are cast against papier-mache matrices, trimmed to accurate size and exact thickness, properly grooved and beveled for attachment to the cylinders of the printing press and cooled.
The principal object of the invention is to provide a machine of this character of simple, compact design with the mechanisms for carrying out the several operations so co-ordinated that one operator can produce finished plates ready for use in a matter of seconds.
A further object to the invention is to provide a machine which is substantially automatic so that the several operations will take place in properly timed sequence without failure and with absolute accuracy even when the machine is operated by an inexperienced operator.
A further object ofthe invention is to provide a machine in which the various instrumentalities are so dei signed as to insure absolute safety to the operator, regardless of his inattention and failure to observe the customary precautions. I V e I Other objects of the invention will be apparent from the accompanying drawings and following specification wherein a commercial model of the machine as now being manufactured and sold is' shown and described in detail.
Referring to the drawings: I 1 Fig. l is a plan view of the entire machine; Fig. 2 is a side elevation of the entiremachine; Fig. 3 is a side elevation of the pneumatic metal pump, partially in section; v Fig. 4 is a side elevation looking from the left of Fig. 3 of the upper part of the pneumatic'pump with parts broken away; 1 i
Fig. 5 is a detail view of a part of the pump operating connections and controls; I i
Fig. 6 is a plan view of the casting box; Fig. 7 is an elevation of the parts shown in ing from the left of Fig. 2; i
Fig. 8 is a section along line 8-8 of Fig. 7; Fig. 9 is a section along line 9-9 of Fig. 6; Fig. 10 is a perspective of the nozzle and its wiper with parts omitted; I
Fig. 11a is a longitudinal section of the of the machine;
Fig. 11b is a continuation of Fig. 11a, showing the plate trimming and cooling sections;
Fig. 12 is a transverse section along line 12-12 of Fig. 11a with parts broken away; V a
Fig. 13 is a section along line 13-13 of Fig. l2,partially broken away; p
Fig. 14 is a similar view along'line14-14 of Fig. 12;
Fig. 6 lookcasting section Fig. l9is a detail view, partly in section, along line 19-19 of Fig. 18;.
Fig. 20 is. a detail view partly in section of the plate position stop;
Fig: 21 is a detail section along line 21-21 of Fig. 20';
Fig. 22 is a longitudinal section of the plate lifting mechanism along line 22-22 of Fig. 25;
Fig. 23; is a transverse section along line 23-23 of Fig. 22;
Fig. 24 is a transverse section along line 24-24 of Fig. 22; i
Fig. 25 is a transverse section along line 25-25 of Fig. 22;
Fig. 26- is a sectional detail along line 26-26 of Fig. 25 Figs. 27 and 28 are diagrammatic views showing the operations of the plate positioning mechanism;
Fig. 29 is a detail section on line 29-29 of Fig. 11a;
Fig. 30 is an end elevation of the platecooling stand; .Fig. 31 is a fragmentary elevation of the plate stop device; r I I Fig. 32 is a section along line 32-32 of Fig.33; Fig. 33 is'a plan view ofthe cooling stand; Y Fig. 34 is a detail view of a portion-of the control mechanism; and
' Fig. 35 is a wiring diagram of the control mechanisms for the metal pump.) f' p Referring to the drawings particularly to Figs. 1-5, inclusive, the pump comprises a main casting 1 having at its lower end a cylinder 2 which is normally submerged in the molten metal in the furnace 3. The pump piston 4 consists of a metal disk whose outer perimeter is grooved as is customary in pumps of this character. The piston 4 is mounted on the piston rod 5 adjacent its end for limited lost motion above a disk, 6 attached to the lower end of the piston rod. The ,diskg6 is provided with a marginal flange which is ground to seat. against a flange 7 on the under side 'of the piston 4 's'urrounding holes 8. When the piston rod is elevated by the pneumatic operatingmechanism which will be later described, the flange of the disk'6 -seats against the flange 7 of the piston and lifts the piston in the cylinder, thereby forcing the molten metal upward through the discharge passage 9=which is cast integral with the cylinder. 2. On the downward stroke the piston 4 is pushed away from the disk 6, allowing the metal to pass through the holes 8 into the cylinder.
a The main casting 1 of the pump is fixedly attached 7 to the under side of a bifurcated bracket 10 which Fig. 15 is a similar view along line 15-15 of 'Fig.-'l 2;
thesameplane as Figs. 11a an d llb showing the driving n ec :lia.nisrn for the shaving andtrimmingknives;
. is actuated by compressed air supplied to a cylin projects .rearwardly from the main frame casting 11 to which the stationary half of the mold 12 is fixedly attached.
For conveying the molten metal to the mold the'passage 9 is provided with an extension 13 which extends upwardly between the two parts of the bifurcated bracket 10 and forwardly to a position immediately'ove'rlying the opening between the two halves of the mold,'as shown more particularly in Figs. 7 and 8. As here shown the extension 13 is providedwith a discharge spout 14 of arcuate configuration overlying the opening into the mold and with a pivoted cutoif lip 15 which normally closes the discharge spout when the mold is open but is swung back from beneath the discharge spout when the mold is closed and locked, as will be later described. 1 Referring a'gain to 'Figs. 3,- 4 and 5, the pump piston 16 supported at the upper end of the pistonrod on a casting 1 7 fixedly mounted on top bf-the casting 1. The casting 17 is provided with a forwardlyfiextending portion 18 uponwhich is mounted the valve mechanism and other parts for controlling the operation of the pump. The compressed air' from'a source, not shown, is supplied to th intake pipe 19 atapproximately -100 pounds
US512822A 1955-06-02 1955-06-02 Machine for casting printing plates Expired - Lifetime US2944306A (en)

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US512822A US2944306A (en) 1955-06-02 1955-06-02 Machine for casting printing plates
GB9536/56A GB836880A (en) 1955-06-02 1956-03-27 Improvements in machine for casting printing plates

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052933A (en) * 1959-03-27 1962-09-11 Wood Newspaper Mach Corp Stereotype plate casting and finishing machine
US3620292A (en) * 1969-09-15 1971-11-16 Wood Industries Inc Automatic stereotype plate casting and finishing machine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1160985A (en) * 1909-04-26 1915-11-16 Charles Edward Hopkins Stereotype apparatus.
US1284193A (en) * 1918-01-28 1918-11-05 Charles E Hopkins Curved-stereotype-plate-making machine.
US1286323A (en) * 1917-06-14 1918-12-03 Charles E Hopkins Machine for making stereotype printing-plates.
US1330942A (en) * 1914-05-15 1920-02-17 Charles E Hopkins Semi-automatic stereotype-plate casting and cooling machine
US1583215A (en) * 1923-04-17 1926-05-04 Wood Newspaper Mach Corp Casting and finishing machine for curved stereotype plates
US1750406A (en) * 1927-07-06 1930-03-11 Wood Newspaper Mach Corp Water-cooled plate-finishing machine
US1843471A (en) * 1926-06-03 1932-02-02 Wood Newspaper Mach Corp Precision plate cooling device
US2243835A (en) * 1939-06-10 1941-06-03 Western Electric Co Die casting machine
US2526753A (en) * 1945-06-14 1950-10-24 Hoe & Co R Stereotype plate casting machine
US2536670A (en) * 1944-12-29 1951-01-02 Wood Newspaper Mach Corp Stereotype platemaking machine
US2619694A (en) * 1949-07-16 1952-12-02 Wood Newspaper Mach Corp Pump operating and control mechanism for stereotype plate casting machines
GB702082A (en) * 1951-08-18 1954-01-06 Herbert Boennhoff Improvements in or relating to trimming devices or apparatus for castings

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1160985A (en) * 1909-04-26 1915-11-16 Charles Edward Hopkins Stereotype apparatus.
US1330942A (en) * 1914-05-15 1920-02-17 Charles E Hopkins Semi-automatic stereotype-plate casting and cooling machine
US1286323A (en) * 1917-06-14 1918-12-03 Charles E Hopkins Machine for making stereotype printing-plates.
US1284193A (en) * 1918-01-28 1918-11-05 Charles E Hopkins Curved-stereotype-plate-making machine.
US1583215A (en) * 1923-04-17 1926-05-04 Wood Newspaper Mach Corp Casting and finishing machine for curved stereotype plates
US1843471A (en) * 1926-06-03 1932-02-02 Wood Newspaper Mach Corp Precision plate cooling device
US1750406A (en) * 1927-07-06 1930-03-11 Wood Newspaper Mach Corp Water-cooled plate-finishing machine
US2243835A (en) * 1939-06-10 1941-06-03 Western Electric Co Die casting machine
US2536670A (en) * 1944-12-29 1951-01-02 Wood Newspaper Mach Corp Stereotype platemaking machine
US2526753A (en) * 1945-06-14 1950-10-24 Hoe & Co R Stereotype plate casting machine
US2619694A (en) * 1949-07-16 1952-12-02 Wood Newspaper Mach Corp Pump operating and control mechanism for stereotype plate casting machines
GB702082A (en) * 1951-08-18 1954-01-06 Herbert Boennhoff Improvements in or relating to trimming devices or apparatus for castings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052933A (en) * 1959-03-27 1962-09-11 Wood Newspaper Mach Corp Stereotype plate casting and finishing machine
US3620292A (en) * 1969-09-15 1971-11-16 Wood Industries Inc Automatic stereotype plate casting and finishing machine

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GB836880A (en) 1960-06-09

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