US741247A - Turn-table for talking machines. - Google Patents

Turn-table for talking machines. Download PDF

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Publication number
US741247A
US741247A US9815802A US1902098158A US741247A US 741247 A US741247 A US 741247A US 9815802 A US9815802 A US 9815802A US 1902098158 A US1902098158 A US 1902098158A US 741247 A US741247 A US 741247A
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United States
Prior art keywords
turn
record
pad
nibs
talking
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
US9815802A
Inventor
Eldridge R Johnson
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.)
Victor Talking Machine Co
Original Assignee
Victor Talking Machine Co
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 Victor Talking Machine Co filed Critical Victor Talking Machine Co
Priority to US9815802A priority Critical patent/US741247A/en
Application granted granted Critical
Publication of US741247A publication Critical patent/US741247A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive

Definitions

  • my invention consists in providing a turn-table for talking-machines with a pad having flexible nibs, whereby the record is held in position without the use of clamps, screws, or nuts and also whereby the support for the record-disk is made slightly yielding.
  • 1 represents a turn-table of the usual form, having rotatable connection with the motor-spindle 7.
  • a soft-rubber pad 2 having a comparatively large number of rounded projections or nibs 3, which extend upwardly to substantially the same height.
  • This pad may have the usual backing 6, of baize or other fabric.
  • a stud 5 projects from the motor-driving spindle through the turn-table and pad and is adapted to pass through the center opening in the record-disk to center the same. All that is necessary to secure a record in position to produce sound is to place the same over the central stud 5, allowing the under surface of the record to rest upon the nibs or projections 3. Owing to the peculiar frictional contact between the lower surface of the record and the projections, the record will be held from turning Serial No. 98,158. (No model.)
  • this form of table has the advantage over the usual tables having plain pads of felt or other yielding material in that the nibs prevent air being confined between the surface of the pad and that of the record, thereby reducing the friction. It will be noticed that should the record slip slightly the nibs would have to a small extent a rolling action, and thereby new points of contact would be formed.
  • a turn-table for talking-machines comprising a rotatable disk, a flexible pad secured to its upper surface, said pad having a comparatively large number of small flexible nibs projecting from its upper surface, substantially as described.
  • a turn-table for talking-machines comprising a rotatable disk, a soft-rubber pad secured to its upper surface said pad having a comparatively large number of small flexible integral nibs projecting from its upper surface, substantially as described.
  • a turn-table for talkingmachines comprising a rotatable disk, a softrubber pad secured to its upper surface, said pad having a comparatively large number of small flexible nibs projecting from its upper surface, and a record-disk resting upon said nibs, substantially as described.

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Description

PATENTED. 001-13, 1903. E. R.- JOHNSON: TURN TABLE FOR TALKINGMAGHINES APPLIOATION FILED MAR. 14, 1902.
N0 MODEL.
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WITNESSES:
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ATTORNEY:
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UiTED YATES Patented October 1 3, 1903.
ELDRIDGE R. JOHNSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO VICTOR TALKING MACHINE COMPANY, A CORPORATION OF NEW JERSEY.
TURN-TABLE. FOR TALKlNG MACHlNES.
SPECIFICATION forming part of Letters Patent No. 741,247, dated October 13, 1903.
Application filed March 14', 1902.
f0 all whom it may concern:
Be it known that I, ELDRIDGE R. JOHNSON, a citizen of the United States, residing at Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Turn-Tables for Talking-Machines; and I do declare the following to be a full and complete disclosure of the same.
In general my invention consists in providing a turn-table for talking-machines with a pad having flexible nibs, whereby the record is held in position without the use of clamps, screws, or nuts and also whereby the support for the record-disk is made slightly yielding.
For a full and detailed description of the invention reference may be had to the following specification and to the accompanying drawings, in which- Figure 1 is a perspective View of the turntable and motor-casing; and Fig. 2 is a sectional View of the turn-table, taken substantially upon the line 2 2 of Fig. 1.
In the drawings, 1 represents a turn-table of the usual form, having rotatable connection with the motor-spindle 7. Upon the upper surface of the table is secured a soft-rubber pad 2, having a comparatively large number of rounded projections or nibs 3, which extend upwardly to substantially the same height. This pad may have the usual backing 6, of baize or other fabric. A stud 5 projects from the motor-driving spindle through the turn-table and pad and is adapted to pass through the center opening in the record-disk to center the same. All that is necessary to secure a record in position to produce sound is to place the same over the central stud 5, allowing the under surface of the record to rest upon the nibs or projections 3. Owing to the peculiar frictional contact between the lower surface of the record and the projections, the record will be held from turning Serial No. 98,158. (No model.)
independently of the table and will be positively rotated with the same.
It will be apparent that this form of table has the advantage over the usual tables having plain pads of felt or other yielding material in that the nibs prevent air being confined between the surface of the pad and that of the record, thereby reducing the friction. It will be noticed that should the record slip slightly the nibs would have to a small extent a rolling action, and thereby new points of contact would be formed.
Slight changes in detail may be made without departing from the spirit of my invention, and I do not wish to be limited to the exactdetails herein set forth; but
What I do claim, and desire to protect by Letters Patent, is-- 1. A turn-table for talking-machines comprising a rotatable disk, a flexible pad secured to its upper surface, said pad having a comparatively large number of small flexible nibs projecting from its upper surface, substantially as described.
2. A turn-table for talking-machines comprising a rotatable disk, a soft-rubber pad secured to its upper surface said pad having a comparatively large number of small flexible integral nibs projecting from its upper surface, substantially as described.
3. In combination, a turn-table for talkingmachines, comprising a rotatable disk, a softrubber pad secured to its upper surface, said pad having a comparatively large number of small flexible nibs projecting from its upper surface, and a record-disk resting upon said nibs, substantially as described.
In witness whereof I have hereunto set my hand this 10th day of March, A. D. 1902.
. ELDRIDGE R. JOHNSON. Witnesses:
S. V. OoxErTEn, J. K. MUNNEBLYN.
US9815802A 1902-03-14 1902-03-14 Turn-table for talking machines. Expired - Lifetime US741247A (en)

Priority Applications (1)

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US9815802A US741247A (en) 1902-03-14 1902-03-14 Turn-table for talking machines.

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US9815802A US741247A (en) 1902-03-14 1902-03-14 Turn-table for talking machines.

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559786A (en) * 1947-02-06 1951-07-10 George L Bowman Interlocking phonograph turntable cover
US2592026A (en) * 1948-04-24 1952-04-08 Edward H Guboff Clutch means for phonograph records
US2776145A (en) * 1952-01-23 1957-01-01 Caltagirone Phonograph tablet tables
US2809843A (en) * 1952-06-30 1957-10-15 Herman H Mueller Turntable mounting for automatic interlocking dual phonograph record player
US2906536A (en) * 1955-02-01 1959-09-29 Gair H Mauerhoff Protective disc for phonograph records
US6424616B1 (en) * 2000-02-02 2002-07-23 Raad Al-Askari Insert for drives for optical storage mediums
JP2013114699A (en) * 2011-11-25 2013-06-10 Minebea Motor Manufacturing Corp Disk rotating motor and disk drive device including the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559786A (en) * 1947-02-06 1951-07-10 George L Bowman Interlocking phonograph turntable cover
US2592026A (en) * 1948-04-24 1952-04-08 Edward H Guboff Clutch means for phonograph records
US2776145A (en) * 1952-01-23 1957-01-01 Caltagirone Phonograph tablet tables
US2809843A (en) * 1952-06-30 1957-10-15 Herman H Mueller Turntable mounting for automatic interlocking dual phonograph record player
US2906536A (en) * 1955-02-01 1959-09-29 Gair H Mauerhoff Protective disc for phonograph records
US6424616B1 (en) * 2000-02-02 2002-07-23 Raad Al-Askari Insert for drives for optical storage mediums
JP2013114699A (en) * 2011-11-25 2013-06-10 Minebea Motor Manufacturing Corp Disk rotating motor and disk drive device including the same

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