US837029A - Rotary lithographic machine. - Google Patents

Rotary lithographic machine. Download PDF

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Publication number
US837029A
US837029A US29825906A US1906298259A US837029A US 837029 A US837029 A US 837029A US 29825906 A US29825906 A US 29825906A US 1906298259 A US1906298259 A US 1906298259A US 837029 A US837029 A US 837029A
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United States
Prior art keywords
cylinder
stone
shaft
rotary lithographic
lithographic machine
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US29825906A
Inventor
Hugo Bittner
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.)
LA "L'ART INDUSTRIEL" Ste
L ART IND SOC
Original Assignee
L ART IND SOC
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
Application filed by L ART IND SOC filed Critical L ART IND SOC
Priority to US29825906A priority Critical patent/US837029A/en
Application granted granted Critical
Publication of US837029A publication Critical patent/US837029A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other

Definitions

  • This invention relates to improvements in rotary lithographic machines.
  • One of the objects of the invention is to provide an improved mounting for the stone cylinders embodied in such machines.
  • a further object of the invention is to furnish improved means for shifting the impression-cylinder with respect to the stone cylinder.
  • Figure 1 is a longitudinal section of a stone cylinder mounted in accordance with the invention.
  • Fig. 2 is a front elevation showing a stone cylinder and impression-cylinder and mechanism according to this invention for shifting the latter toward and away from the former.
  • Fig. 3 is a side elevation of Fig. 2, showing the parts in printing position; and
  • Fig. l is a similar side elevation showing the impression-cylinder out of contact with the stone cylinder.
  • the stone cylinder a is centered on the shaft 1), Fig. 1, and is tightly pressed between two disks 0.
  • the extremities of the stone at are turned conical.
  • the conical portions (1. fit into the disks, which are themselves conically hollowed.
  • the disks are pressed toward the shoulder e of the shaft by means of a nut f. One of these disks abuts against said shoulder.
  • the screw-threading of the shaft which permits of screwing the nut f, is directed oppositely to the direction of rotation in such a manner that the operation of the machine may not tend to loosen the cylinder.
  • the means for j lifting the pressure-cylinder g, Figs. 2, 3, and 4 comprises, broadly, eccentrics hh, Fig. 2, keyed upon a shaft i.
  • This shaft rotates in supports or bearings adjustable vertically in the checks of the frame, the said eccentric acting upon the vertically-diplaceable bearings Z Z, in which the shaft m of the pressurecylinder g turns.
  • a lever is, arranged at the end of the shaft i, serves to operate said eccentrics.
  • the cylinder g may be raised and applied against the stone, zinc, aluminium, or the like cylinder 0, Fig. 3, or freed therefrom, Fig. 4.
  • the supports 11 i may be adjusted in height by means of the screws n, which engage the same at their lower portions.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Description

- PATENTED NOV. 27, 1906.
H. .BITTNER.
ROTARY LITHOGRAPHIG MACHINE.
2 SHEETS-SHEET 1.
APPLICATION FILED JAN. 27. 1906.
ATIWH/V K5 WITNESSES 0., wnsnmarolv. D. c.
PATENTED NOV. 27, 1906.
H. BITTNER. ROTARYLITH'OGRAPHIO MACHINE.
APPLICATION FILED JAN. 27. 1906.
2 SHEETS-SHEET 2.
Win/5555 nwmrzm {ALL Arm/Mm THE NORRIS PETERS cu, wnsumoran, D. c.
UNITED STATES PATENT OFFICE.
HUGO BITTNER, or PARIS, FRANCE, ASSIGNOR TO LA SOOIETE LART INDUSTRIEL, OF PARIS, FRANCE.
ROTARY LITHOGRAPHIC MACHINE.
Patented Nov. 27, 1906.
Annlioation filed an ary 27,1906- Seri 1N =298,259.
To all whom it may concern.-
Be'it known that I, HUGO BITTNER, a citizen of the Emplre of Austr1aHungary, residing in Paris, France, have mvented certain 1 new and useful Improvements in Rotary Lithographic Machines, of which the following is a specification.
This invention relates to improvements in rotary lithographic machines.
One of the objects of the invention is to provide an improved mounting for the stone cylinders embodied in such machines.
A further object of the invention is to furnish improved means for shifting the impression-cylinder with respect to the stone cylinder.
With these ends in view the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.
In the accompanying drawings, in which the same reference characters denote the same parts throughout the several views, Figure 1 is a longitudinal section of a stone cylinder mounted in accordance with the invention. Fig. 2 is a front elevation showing a stone cylinder and impression-cylinder and mechanism according to this invention for shifting the latter toward and away from the former. Fig. 3 is a side elevation of Fig. 2, showing the parts in printing position; and Fig. l is a similar side elevation showing the impression-cylinder out of contact with the stone cylinder.
With the object of obviating the defects due to breakages caused by directlyfixing the stone cylinder upon the shaft by means of checks pressed against the ends of the cylinderby means of screws and nuts the following arrangement is adopted: The stone cylinder a, is centered on the shaft 1), Fig. 1, and is tightly pressed between two disks 0. The extremities of the stone at are turned conical. The conical portions (1. fit into the disks, which are themselves conically hollowed. Between the disks and the stone there are interposed layers d of vulcanized rubber. The disks are pressed toward the shoulder e of the shaft by means of a nut f. One of these disks abuts against said shoulder. The screw-threading of the shaft, which permits of screwing the nut f, is directed oppositely to the direction of rotation in such a manner that the operation of the machine may not tend to loosen the cylinder. The means for j lifting the pressure-cylinder g, Figs. 2, 3, and 4, comprises, broadly, eccentrics hh, Fig. 2, keyed upon a shaft i. This shaft rotates in supports or bearings adjustable vertically in the checks of the frame, the said eccentric acting upon the vertically-diplaceable bearings Z Z, in which the shaft m of the pressurecylinder g turns. A lever is, arranged at the end of the shaft i, serves to operate said eccentrics.
The cylinder g may be raised and applied against the stone, zinc, aluminium, or the like cylinder 0, Fig. 3, or freed therefrom, Fig. 4.
The supports 11 i may be adjusted in height by means of the screws n, which engage the same at their lower portions.
Having thus described my invention, I claim as new and desire to secure by Letters Patent In a lithographic machine, in combination, a stone cylinder, an impression-cylinder parallel thereto, bearings for said impressioncylinder which are slidable toward and away HUGO BITTNER.
l Vitnesses:
EMILE LEDRET, FREDERIO U. LAULDUGEE.
from said stone cylinder, a shaft, eccentrics
US29825906A 1906-01-27 1906-01-27 Rotary lithographic machine. Expired - Lifetime US837029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29825906A US837029A (en) 1906-01-27 1906-01-27 Rotary lithographic machine.

Applications Claiming Priority (1)

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US29825906A US837029A (en) 1906-01-27 1906-01-27 Rotary lithographic machine.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800704A (en) * 1953-11-20 1957-07-30 Heraeus Schott Quarzschmelze Textile guiding drums
US2814855A (en) * 1954-05-04 1957-12-03 Eugene G Seary Printing roll
US3364849A (en) * 1965-03-24 1968-01-23 Control Print Machinery Manufa Rolling-contact printing member with adjustable roller inker
US3737962A (en) * 1971-03-03 1973-06-12 Beloit Corp Roll assembly for paper machine
US4975153A (en) * 1989-08-23 1990-12-04 Beloit Corporation Press section apparatus with deflection compensated granite roll shell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800704A (en) * 1953-11-20 1957-07-30 Heraeus Schott Quarzschmelze Textile guiding drums
US2814855A (en) * 1954-05-04 1957-12-03 Eugene G Seary Printing roll
US3364849A (en) * 1965-03-24 1968-01-23 Control Print Machinery Manufa Rolling-contact printing member with adjustable roller inker
US3737962A (en) * 1971-03-03 1973-06-12 Beloit Corp Roll assembly for paper machine
US4975153A (en) * 1989-08-23 1990-12-04 Beloit Corporation Press section apparatus with deflection compensated granite roll shell

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