US406570A - Phonograph - Google Patents

Phonograph Download PDF

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Publication number
US406570A
US406570A US406570DA US406570A US 406570 A US406570 A US 406570A US 406570D A US406570D A US 406570DA US 406570 A US406570 A US 406570A
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United States
Prior art keywords
knife
chips
phonograph
shoe
cutting
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Expired - Lifetime
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/02—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using cylindrical 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
    • Y10T82/00—Turning
    • Y10T82/11—Talking machine tablet

Definitions

  • the object I have in View is to prevent wholly or in a measure the effect of the electrification of the chips which are produced by turning off the surface of the phonogramblanks.
  • a hard composition such as a hard metallic soap-and this composition, as well as all hard wax compositions, produces in turning chips which have ahigh degree of electrification, and which adhere to the cylinder and to the cuttingknife, as well as to the point of the recorder, and injure the surface of the record produced by the recorder, the recording being performed at the same time that the surface is turned 0%, as has been made clear by applications for patent'already filed by me.
  • Figure 1 is atop view of thespectacle-frame of my phonograph, showing the cutting-knife with breaking-shoe in position for operation.
  • Fig. 2 is a side view of the knife, and
  • Fig. 3 is an end view of the knife.
  • A is the spectacle-frame, in the eye a of which is placed the recorder.
  • the turningolf tool B is secured rigidly to the spectacle frame and projects toward the center of the eye a and downwardly toward the surface of the phonogram blank.
  • the edge I) of the knife bears obliquely upon the surface of the blank and acts as a turning-tool for turning oif the surface of the blank,producing achip of the material of the phonogram-blank, as will be well understood.
  • the breaking-shoe O is a plate which crosses the end of the knife above the cutting-edge b, and is bent at right angles, extending along one side of the knife, to which it is secured by means of a slot and a set-screw c, which permit proper adjustment of the breaking-shoe with relation to the cutting-edge b.
  • the shoe G being directly above the cutting-edge and projecting beyond it, forms a shoulder, against which the chips strike as they rise from the cuttingedge, and, the material being brittle, the cffeet is to powder or break the chips into small THOMAS A. EDISON.

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  • Thermal Transfer Or Thermal Recording In General (AREA)

Description

(No Model.) v
' T. A. EDISON.
PHONQGRAIH. v
No. 406,570. Patented July 9, 1889.
RL 0 Q V m m ATTORNEYS N. PETERS. Photo-Ullwgrapher. wmmm n. c
UNITED STATES PATENT OFFICE.
THOMAS A. EDISON, OF LLEWELLYN PARK, NEIV JER SEY.
PHONOGRAPH. l
SPECIFICATION forming part of Letters Patent No. 406,570, dated. July 9, 1889.
Application filed February 11,1889. $e1ial No. 299,452. [No model.)
To all whom it may concern:
Be it known that I, THOMAS A EDISON, a citizen of the United States, residing at Llewellyn Park, in the county of Essex and State of New Jersey, have invented a certain new and useful Improvement in Phonographs, (Case No. 820,) of which the followingis a specification.
The object I have in View is to prevent wholly or in a measure the effect of the electrification of the chips which are produced by turning off the surface of the phonogramblanks. I use for my blanks a hard compositionsuch as a hard metallic soap-and this composition, as well as all hard wax compositions, produces in turning chips which have ahigh degree of electrification, and which adhere to the cylinder and to the cuttingknife, as well as to the point of the recorder, and injure the surface of the record produced by the recorder, the recording being performed at the same time that the surface is turned 0%, as has been made clear by applications for patent'already filed by me. I have found that the evil effects of the electrification of the chips will be done away with in a measure by breaking up or powdering the chips as they are produced, and this I accomplish by providing the turning-off knife with a shoe, which breaks or powders the chips into small pieces as they rise from the cutting-edge, of the knife.
In the accompanying drawings, forming a part hereof, Figure 1 is atop view of thespectacle-frame of my phonograph, showing the cutting-knife with breaking-shoe in position for operation. Fig. 2 is a side view of the knife, and Fig. 3 is an end view of the knife.
A is the spectacle-frame, in the eye a of which is placed the recorder. The turningolf tool B is secured rigidly to the spectacle frame and projects toward the center of the eye a and downwardly toward the surface of the phonogram blank. The edge I) of the knife bears obliquely upon the surface of the blank and acts as a turning-tool for turning oif the surface of the blank,producing achip of the material of the phonogram-blank, as will be well understood. The breaking-shoe O is a plate which crosses the end of the knife above the cutting-edge b, and is bent at right angles, extending along one side of the knife, to which it is secured by means of a slot and a set-screw c, which permit proper adjustment of the breaking-shoe with relation to the cutting-edge b. The shoe G, being directly above the cutting-edge and projecting beyond it, forms a shoulder, against which the chips strike as they rise from the cuttingedge, and, the material being brittle, the cffeet is to powder or break the chips into small THOMAS A. EDISON.
' IVitnesses:
W. PELZER, D. H. DRISCOLL.
US406570D Phonograph Expired - Lifetime US406570A (en)

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