US400649A - Method of making phonogram-blanks - Google Patents

Method of making phonogram-blanks Download PDF

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Publication number
US400649A
US400649A US400649DA US400649A US 400649 A US400649 A US 400649A US 400649D A US400649D A US 400649DA US 400649 A US400649 A US 400649A
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phonogram
core
blanks
making
paper
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1036—Bending of one piece blank and joining edges to form article
    • Y10T156/1038—Hollow cylinder article
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/108—Flash, trim or excess removal

Definitions

  • the object of my invention is to produce, in a simple and expeditious manner, cylindrical phonogram-blanks made of paper or other flexible material covered with a material which can be indented by the recording-point of the phonograph.
  • I first take a sheet of paper or other flexible material of the proper size, and I wrap this upon a tapering core which is provided with a handle. I secure the paper together at its edges, and I then, holding the core by the handle, dip it into a bath of the material to be applied to it while such material is in a softened'condition.
  • Thismaterial is prefer-' ably a wax or a composition of waxes or a suitable metallic soap. After the paper is dipped and becomes coated to a sufficient thickness with the indenting material, it is placed in a lathe, and its surface is turned off into a true cylindrical form, it being at first in the'tapering form of the dipping-core. The phonogram-blank being then removed from the core is ready for use.
  • Figure 1 is an elevation of the paper wrapped on the dipping-core; Fig. 2, a section of the sameafter dipping and turning, the core being in elevation; and Fig. 3, a cross-section on the line 3 3 of Fig. 2.
  • the sheet of paper a is wrapped upon the tapering cylindrical core 1;, which has a handle, c, and its overlapping edges are gummed or otherwise secured together.
  • the paper thus assumes a form like that of the core.
  • the core is then held by the handle and the paper dipped into the material, as above described, and this material d adheres to the surface of the paper, whereby a hollow cylinder tapering both inside and outside is produced.
  • This is then turned off in a lathe into the shape shown in Fig. 2-that is, so that it has a cylindrical outer surface and a tapering bore, whereby on being removed from the forming-core it can readily be placed upon the cylinder of the phonograph and recorded upon.
  • What I claim is The method of making a phonogram-blank, which consists in wrapping a sheet of flexible material upon a tapering cylindrical core, dipping the same into the sound-recording material, which is caused to adhere to its surface, and then turning off the surface of such material into a true cylindrical form, substantially as set forth.

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Description

(No Model.) I
v T. A. EDISON.
METHOD OF MAKING PHONOGRAM BLANKS. 7 N6. 400,649.. PatentedApr. 2. 1.889.
- WITNESSES: IIV'I/EAIYTOI? Arm/M15767 UNITED} STATES PATENT OFFICE.
THOMAS A. EDISON, OF LLEWELLYN PARK, NEW JERSEY.
METHOD OF MAKING PHONOGRAM-BLANKS.
SPECIFICATION forming part of'Letters Patent No. 400,649, dated April 2, 1889.
" Application filed October 11,1888. Serial No. 287,843. (NomodeL) To all whom it may concern:
Be it known that I, THOMAS A. EDISON, of Llewellyn Park, in the county of Essex and State of New Jersey, have invented a certain new and useful Improvement in Methods of Making Phonogram-Blanks, (Case No. 807,) of which the following is a specification.
The object of my invention is to produce, in a simple and expeditious manner, cylindrical phonogram-blanks made of paper or other flexible material covered with a material which can be indented by the recording-point of the phonograph.
In carrying my invention into effect, I first take a sheet of paper or other flexible material of the proper size, and I wrap this upon a tapering core which is provided with a handle. I secure the paper together at its edges, and I then, holding the core by the handle, dip it into a bath of the material to be applied to it while such material is in a softened'condition. Thismaterial is prefer-' ably a wax or a composition of waxes or a suitable metallic soap. After the paper is dipped and becomes coated to a sufficient thickness with the indenting material, it is placed in a lathe, and its surface is turned off into a true cylindrical form, it being at first in the'tapering form of the dipping-core. The phonogram-blank being then removed from the core is ready for use.
My invention is illustrated in the accompanying drawings.
Figure 1 is an elevation of the paper wrapped on the dipping-core; Fig. 2, a section of the sameafter dipping and turning, the core being in elevation; and Fig. 3, a cross-section on the line 3 3 of Fig. 2.
The sheet of paper a is wrapped upon the tapering cylindrical core 1;, which has a handle, c, and its overlapping edges are gummed or otherwise secured together. The paper thus assumes a form like that of the core.
The core is then held by the handle and the paper dipped into the material, as above described, and this material d adheres to the surface of the paper, whereby a hollow cylinder tapering both inside and outside is produced. This is then turned off in a lathe into the shape shown in Fig. 2-that is, so that it has a cylindrical outer surface and a tapering bore, whereby on being removed from the forming-core it can readily be placed upon the cylinder of the phonograph and recorded upon.
In placingthe cylinder in the lathe, I prefer-to leave it on the forming-core, this being provided with depressions at its ends (shown in dotted lines) for holding it in the lathe.
What I claim is The method of making a phonogram-blank, which consists in wrapping a sheet of flexible material upon a tapering cylindrical core, dipping the same into the sound-recording material, which is caused to adhere to its surface, and then turning off the surface of such material into a true cylindrical form, substantially as set forth.
This specification sign ed and witnessed this 29th day of September, 1888.
WILLIAM PELZER, E. O. ROWLAND.
US400649D Method of making phonogram-blanks Expired - Lifetime US400649A (en)

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