US196149A - Improvement in calico-printing rollers - Google Patents

Improvement in calico-printing rollers Download PDF

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Publication number
US196149A
US196149A US196149DA US196149A US 196149 A US196149 A US 196149A US 196149D A US196149D A US 196149DA US 196149 A US196149 A US 196149A
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Prior art keywords
calico
improvement
printing rollers
mandrel
copper
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes

Definitions

  • Figure l is a view of my improved mandrel.
  • Fig. 2 is a longitudinal section of the same.
  • the invention has reference to an improvement in mandrels for calico-printing rolls and consists in securing to a shaft a concentric tube or cylinder, made slightly tapering, and of such diameter that a thin copper shell bored out to fit the mandrel may be secured to the same by frictional contact, and the same mandrel may be used for any number of copper shells.
  • a is a shaft, provided with bearings.
  • 71 b are two annular rings, shrunk or welded on the shaft a, or otherwise firmly secured to the same.
  • 0 is a slightly-tapering cylinder or tube, firmly secured to the annular rings or collars lg I), and thus by them to the shaft (1..
  • this mandrel thin copper she may be used for calico-printing, and the large investment in copper avoided; and as the copper shells are not permanently secured to the mandrel or to the cylinder or tube 0, the copper rolls are not injured by the expansion or contraction of different metals.
  • the copper shells, beinglighter, are easily handled, and the mandrel, being also lighter and of greater diameter than mandrels of the usual construction, the light copper rolls are more firmly supported at all parts oftheir surface, and less force is requlred to bring the same into true frictional contact with the tube or cylinder 0, and are not liable to be displaced.

Description

J. HOPE. Calico-Printing Rollers.
No. 196,149. Patented Oct. 16, 1877.
-WITNESSES. INVENTOR.
NJETERS, FHOTO-LITHOGRAPHER. WASHINGTON, n C
' UNITED STATES PATENT OFFICE.
JOHN HOP E, OF PROVIDENCE, RHODE ISLAND.
IMPROVEMENT IN CALICO-PRINTING ROLLERS.
Specification forming part of Letters Patent No. 196,149, dated October 16, 1877; application filed January 20, 1877.
To all whom it may concern:
Be it known that I, JOHN HOPE, of the city and county of Providence, State of Rhode Island, have invented certain new and useful Improvements in Mandrels for CalieoPrintin g Rolls; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.
Figure l is a view of my improved mandrel. Fig. 2 is a longitudinal section of the same.
The invention has reference to an improvement in mandrels for calico-printing rolls and consists in securing to a shaft a concentric tube or cylinder, made slightly tapering, and of such diameter that a thin copper shell bored out to fit the mandrel may be secured to the same by frictional contact, and the same mandrel may be used for any number of copper shells.
In the drawings, a is a shaft, provided with bearings. 71 b are two annular rings, shrunk or welded on the shaft a, or otherwise firmly secured to the same. 0 is a slightly-tapering cylinder or tube, firmly secured to the annular rings or collars lg I), and thus by them to the shaft (1..
The cylinder or tube 0 may be shrunk or welded to the annular rings 1) b, and the shaft a may be of less diameter between the annular rings (1 (1 than at the bearings; and as the cylinder or tube 0 is of considerable diameter and firmly secured to the shaft,=-a mandrel presenting alarge surface, of considerable diameter, strong and firmly braced, and lighter than the usual mandrel, is produced, on which a thin copper shell can be placed with little trouble, as a slight taper will secure the same by frictional contact more firmly than on amandrel of the usual construction.
By the use of this mandrel thin copper she may be used for calico-printing, and the large investment in copper avoided; and as the copper shells are not permanently secured to the mandrel or to the cylinder or tube 0, the copper rolls are not injured by the expansion or contraction of different metals. The copper shells, beinglighter, are easily handled, and the mandrel, being also lighter and of greater diameter than mandrels of the usual construction, the light copper rolls are more firmly supported at all parts oftheir surface, and less force is requlred to bring the same into true frictional contact with the tube or cylinder 0, and are not liable to be displaced.
I am aware that light or thin copper cylinders have been used, and I am aware that such cylinders have been strengthened by concentric cylinders; butsuch copper cylindersv and the concentric cylinders have heretofore JOHN HOPE.
Witnesses J OSEPH A. MILLER, OSCAR LAPHAM.
US196149D Improvement in calico-printing rollers Expired - Lifetime US196149A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787956A (en) * 1953-07-28 1957-04-09 Mosstype Roller Co Inc Printing plate cylinder and method of mounting or demounting same from a mandrel
US2918867A (en) * 1956-06-26 1959-12-29 Killary David Charles Printing collet construction
US2949852A (en) * 1959-05-01 1960-08-23 Reynolds Metals Co Printing roll

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787956A (en) * 1953-07-28 1957-04-09 Mosstype Roller Co Inc Printing plate cylinder and method of mounting or demounting same from a mandrel
US2918867A (en) * 1956-06-26 1959-12-29 Killary David Charles Printing collet construction
US2949852A (en) * 1959-05-01 1960-08-23 Reynolds Metals Co Printing roll

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