US837279A - Platen for type-writers. - Google Patents

Platen for type-writers. Download PDF

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Publication number
US837279A
US837279A US29934106A US1906299341A US837279A US 837279 A US837279 A US 837279A US 29934106 A US29934106 A US 29934106A US 1906299341 A US1906299341 A US 1906299341A US 837279 A US837279 A US 837279A
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United States
Prior art keywords
platen
type
sections
writer
writers
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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
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US29934106A
Inventor
Charles K Bradford
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.)
CHARLES W BRADFORD
GEORGE W BRADFORD
Original Assignee
CHARLES W BRADFORD
GEORGE W BRADFORD
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.)
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Application filed by CHARLES W BRADFORD, GEORGE W BRADFORD filed Critical CHARLES W BRADFORD
Priority to US29934106A priority Critical patent/US837279A/en
Application granted granted Critical
Publication of US837279A publication Critical patent/US837279A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/02—Platens
    • B41J11/04—Roller platens
    • B41J11/053—Roller platens with sound-deadening devices

Definitions

  • BRADFORD F l.-YNNF1ELD
  • MASSACHUSETTS ASSIGNOR TO' ⁇ ii-iARLES Vi BRADFORD AND ONE-FOURTH TO iliADiOid); BOEBTON, MASSACHUSETTS.
  • the invention consists in a type-writer platen having a face composed of resilient hard-surfaced wear-resisting sections, prcferably of thin tempered sheet metal, such as steel, and a yleldingnoise-muffiing backing for said sections supported by the body of the platen,- the said sections being independent ofeach other to such an extent that the vibrations of each section will be absorbed by the yielding backing.
  • a type-writer platen having a rigid body por- Ton, which may be of any suitable construction, the same being here shown as composed of a rigid metallic tube 12 and an enlargement 13, the said tube or enlargement being preferably formed by paper wound in a compact roll upon the tube 12. i do not limit myself, however, to this construction and may construct the rigid body of the platen in any other suitable way.
  • the actin face of the platen said face being 1 14 represents a noise -mufiiing member, which is formed as a cover for the rigid body and may be composed of any suitable yielding material, such as soft rubber, felt, or the usual composition of glue, glycerin, and molasses used for printers rolls.
  • the mem ber 14 constitutes a support or backing for compose of strips or sections 15 15, of hardsuri'aced resilient material, preferablysheetsteel. The sections 15 are placed in close Fig.
  • the sections 15 are of uniform width and are so arranged that the printing characters of the type-writer will strike each section when it is brought into operative position about midway between its edges. I consider it preferable to slightly separate the adjacent edges of the sections, so that they will not be in actual contact with each other.
  • a platen constructed as above described does not possess the resonant qualities of the ordinary platen, so that the noise caused by the impact of the printing characters against the paper supported by the platen is very muchreduced. Hence the objectionable noise attending the operation of type-writers with ordinary platens is obviated.
  • a type-writer platen having a face composed of resilient, hard-surfaced, wear-resisting sections with their edges in close roximity, and a yielding, noise-mufiling acking for said sections.
  • a type-writer platen comprising a sectional face of resilient, hard-surfaced, wearresisting material, the sections having their edges in close proximity, a rigid'body ortion, and a yielding, noise-mufiling bac ring interposed between the body and the sectional face.
  • a type-writer platen comprising a rigid body having outwardly-pro'ecting flanges at its end portions, resilient s est-metal strips attached at their ends to said flanges, said stri s having their edges in close proximity, an a yielding, noise-mufiiing backing interposed between the body and the said strips.

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Description

PATENTED DEC. 4, 1.906
Cv K. BRADFORD. PLATEN FOR TYPE WRITER.
APPLICATION FILED FEB. 3, 1906.
WITNESSES GHARLE K.
G? ONEFGURTH rrrrnnr cr mes.
BRADFORD, F l.-YNNF1ELD, MASSACHUSETTS, ASSIGNOR TO' {ii-iARLES Vi BRADFORD AND ONE-FOURTH TO iliADiOid); BOEBTON, MASSACHUSETTS.
Specification of Letters Patent.
Application filed February 3. 1906- Serial No. 299,341.
- by the impact of the printing characters of a type-writer against the paper supported by the platen.
The invention consists in a type-writer platen having a face composed of resilient hard-surfaced wear-resisting sections, prcferably of thin tempered sheet metal, such as steel, and a yleldingnoise-muffiing backing for said sections supported by the body of the platen,- the said sections being independent ofeach other to such an extent that the vibrations of each section will be absorbed by the yielding backing.
Of the accompanying drawings, forming a art of this s ecifi'cation Fi ure 1 re resents a perspective view of a type-writer platen embodying my invention. Fig. 2 represents a transverse section of the same. resents a longitudinal section.
The same numerals of reference indicate the same parts in all of the figures.
In carrying out my invention I provide a type-writer platen having a rigid body por- Ton, which may be of any suitable construction, the same being here shown as composed of a rigid metallic tube 12 and an enlargement 13, the said tube or enlargement being preferably formed by paper wound in a compact roll upon the tube 12. i do not limit myself, however, to this construction and may construct the rigid body of the platen in any other suitable way.
' the actin face of the platen, said face being 1 14 represents a noise -mufiiing member, which is formed as a cover for the rigid body and may be composed of any suitable yielding material, such as soft rubber, felt, or the usual composition of glue, glycerin, and molasses used for printers rolls. The mem ber 14 constitutes a support or backing for compose of strips or sections 15 15, of hardsuri'aced resilient material, preferablysheetsteel. The sections 15 are placed in close Fig. 3 repproximity to each other, edge to edge, and are secured at their end portions to the platen in any suitable way, preferably by being attached by rivets 16 or otherwise to rigid outwardly-projecting end flanges 17, ahixed to the rigid body of the platen. The sections 15 are of uniform width and are so arranged that the printing characters of the type-writer will strike each section when it is brought into operative position about midway between its edges. I consider it preferable to slightly separate the adjacent edges of the sections, so that they will not be in actual contact with each other.
A platen constructed as above described does not possess the resonant qualities of the ordinary platen, so that the noise caused by the impact of the printing characters against the paper supported by the platen is very muchreduced. Hence the objectionable noise attending the operation of type-writers with ordinary platens is obviated.
I do not limit myself to the details of construction above described, as the construction may be variously modified Without departing from the spirit of my invention.
1. A type-writer platen having a face composed of resilient, hard-surfaced, wear-resisting sections with their edges in close roximity, and a yielding, noise-mufiling acking for said sections.
2. A type-writer platen comprising a sectional face of resilient, hard-surfaced, wearresisting material, the sections having their edges in close proximity, a rigid'body ortion, and a yielding, noise-mufiling bac ring interposed between the body and the sectional face.
.3. A type-writer platen comprising a rigid body having outwardly-pro'ecting flanges at its end portions, resilient s est-metal strips attached at their ends to said flanges, said stri s having their edges in close proximity, an a yielding, noise-mufiiing backing interposed between the body and the said strips.
In testimony whereof I have affixed my signature in presence of two witnesses.
CHARLES K. BRADFORD. Witnesses: w C. F. BROWN,
E. BATOHELDER.
US29934106A 1906-02-03 1906-02-03 Platen for type-writers. Expired - Lifetime US837279A (en)

Priority Applications (1)

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US29934106A US837279A (en) 1906-02-03 1906-02-03 Platen for type-writers.

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US29934106A US837279A (en) 1906-02-03 1906-02-03 Platen for type-writers.

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US837279A true US837279A (en) 1906-12-04

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US29934106A Expired - Lifetime US837279A (en) 1906-02-03 1906-02-03 Platen for type-writers.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618372A (en) * 1949-02-15 1952-11-18 Carlos C Goetz Platen for typewriters
EP0073841A1 (en) * 1981-08-26 1983-03-16 Ibm Deutschland Gmbh Pressure abutment for high-speed printers, especially for belt-type printers
US4722621A (en) * 1985-10-30 1988-02-02 Johnson Reynold B Keyboard assembly and recording apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618372A (en) * 1949-02-15 1952-11-18 Carlos C Goetz Platen for typewriters
EP0073841A1 (en) * 1981-08-26 1983-03-16 Ibm Deutschland Gmbh Pressure abutment for high-speed printers, especially for belt-type printers
EP0073841B1 (en) * 1981-08-26 1986-02-26 Ibm Deutschland Gmbh Pressure abutment for high-speed printers, especially for belt-type printers
US4722621A (en) * 1985-10-30 1988-02-02 Johnson Reynold B Keyboard assembly and recording apparatus

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