US2287240A - Phonograph record - Google Patents
Phonograph record Download PDFInfo
- Publication number
- US2287240A US2287240A US393435A US39343541A US2287240A US 2287240 A US2287240 A US 2287240A US 393435 A US393435 A US 393435A US 39343541 A US39343541 A US 39343541A US 2287240 A US2287240 A US 2287240A
- Authority
- US
- United States
- Prior art keywords
- disk
- record
- grooves
- phonograph
- sound grooves
- 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
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Classifications
-
- 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
Definitions
- the present invention relates to new and useful improvements in phonograph records of the disk type and has for its primary object to provide a secondary record or disk secured in position at the center of the main record and having guide grooves providing communication between the recording grooves of the main and secondary disks to guide the needle from the main to the secondary record.
- a further object is to provide a simple and inexpensive method of adding a trailer record to a conventional phonograph disk record for use as an advertising medium.
- the numeral 5 designates a conventional type of disk phonograph record having the spiral recording grooves 6 in the surface thereof.
- An auxiliary or secondary disk or record 1 is adhesively or otherwise suitably secured to the upper surface of the disk 5 at its center, the disk 1 also having recording grooves 8 on its upper surface and communieating with the grooves 6 of the main disk by a spiral guide groove 9.
- I provide said A auxiliary disk with a radially projecting shoulder Il) having a circumferentially tapering edge Il along which the guide groove 9 extends.
- the sound grooves of the auxiliary disk 1 terminate in the usual eccentric stopping groove I2 at the end of the recording which provides means for operating the conventional mechanical pick-up and record changing device.
- the auxiliary record 1 may be used for adding an advertisement or announcement at the end of the regular record.
- auxiliary record is suicient only to prevent slipping of the said record on the main record and will permit removal and replacement of the auxiliary record, when desired.
- a phonograph record of the disk type having spirally arranged sound grooves in'its surface, a second record disk secured to the upper surface of the first disk and also having sound grooves in its upper surface, said second record having a spirally formed peripheral edge portion defining a radial projection having a circumferentially extending tapering surface, and a guide groove leading from the sound grooves of the first disk to the sound grooves of the second disk across said tapering surface.
- a phonograph record of the disk type having spirally arranged sound grooves in its surface, a second record disk secured to the upper surface of the rst disk and also having sound grooves in its upper surface, a circumferentially extending tapering edge on said second disk and a guide groove leading from the sound grooves of the rst disk to the sound grooves of the second disk and traversing said tapering edge.
- a phonograph record of the disk type having spirally arranged sound grooves in its surface, a second record disk secured to the upper surface of the first disk and also having sound grooves in its upper surface, a shoulder on'the peripherial edge of said second disk and extending radially thereof, said shoulder having a circumferentially extending tapering surface and a guide groove leading from the sound grooves of the first disk to the sound grooves of the second disk and traversing said tapering surface.
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
Patented June 23, 1942 2,287,240 PHONOGRAPH RECORD Guy E. Haltenhof, Columbia, Ill., assigner of ten per cent to Fridolin Bersche, Waterloo, lll., and
thirtye per cent to Leo A. Weilbacher,
Columbia, Ill.
Application May 14,1941, serial No. 393,435
3 Claims. (Cl
The present invention relates to new and useful improvements in phonograph records of the disk type and has for its primary object to provide a secondary record or disk secured in position at the center of the main record and having guide grooves providing communication between the recording grooves of the main and secondary disks to guide the needle from the main to the secondary record.
A further object is to provide a simple and inexpensive method of adding a trailer record to a conventional phonograph disk record for use as an advertising medium.
Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming parts hereof, wherein like numerals refer to like parts and in which- Figure 1 is a top plan view and Figures 2 and 3 are sectional views taken respectively on the lines 2-2 and 3-3 of Figure l.
Referring now to the drawing in detail, the numeral 5 designates a conventional type of disk phonograph record having the spiral recording grooves 6 in the surface thereof. An auxiliary or secondary disk or record 1 is adhesively or otherwise suitably secured to the upper surface of the disk 5 at its center, the disk 1 also having recording grooves 8 on its upper surface and communieating with the grooves 6 of the main disk by a spiral guide groove 9.
In order that the phonograph needle may rise over the edge of the auxiliary disk, I provide said A auxiliary disk with a radially projecting shoulder Il) having a circumferentially tapering edge Il along which the guide groove 9 extends. The sound grooves of the auxiliary disk 1 terminate in the usual eccentric stopping groove I2 at the end of the recording which provides means for operating the conventional mechanical pick-up and record changing device.
After the regular record has been played from the sound grooves on the main disk 5, the needle is then guided onto the auxiliary disk 1 whereupon the playing of this latter record continues.
The auxiliary record 1 may be used for adding an advertisement or announcement at the end of the regular record.
'I'he adhesive attaching means for the auxiliary record is suicient only to prevent slipping of the said record on the main record and will permit removal and replacement of the auxiliary record, when desired.
It is believed the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.
What is claimed as new is:
1. A phonograph record of the disk type having spirally arranged sound grooves in'its surface, a second record disk secured to the upper surface of the first disk and also having sound grooves in its upper surface, said second record having a spirally formed peripheral edge portion defining a radial projection having a circumferentially extending tapering surface, and a guide groove leading from the sound grooves of the first disk to the sound grooves of the second disk across said tapering surface.
2. A phonograph record of the disk type having spirally arranged sound grooves in its surface, a second record disk secured to the upper surface of the rst disk and also having sound grooves in its upper surface, a circumferentially extending tapering edge on said second disk and a guide groove leading from the sound grooves of the rst disk to the sound grooves of the second disk and traversing said tapering edge.
3. A phonograph record of the disk type having spirally arranged sound grooves in its surface, a second record disk secured to the upper surface of the first disk and also having sound grooves in its upper surface, a shoulder on'the peripherial edge of said second disk and extending radially thereof, said shoulder having a circumferentially extending tapering surface and a guide groove leading from the sound grooves of the first disk to the sound grooves of the second disk and traversing said tapering surface.
GUY E. HALTENHOF.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393435A US2287240A (en) | 1941-05-14 | 1941-05-14 | Phonograph record |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393435A US2287240A (en) | 1941-05-14 | 1941-05-14 | Phonograph record |
Publications (1)
Publication Number | Publication Date |
---|---|
US2287240A true US2287240A (en) | 1942-06-23 |
Family
ID=23554692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US393435A Expired - Lifetime US2287240A (en) | 1941-05-14 | 1941-05-14 | Phonograph record |
Country Status (1)
Country | Link |
---|---|
US (1) | US2287240A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503609A (en) * | 1947-06-06 | 1950-04-11 | Frank H Barnhart | Phonograph record disk |
US2573328A (en) * | 1948-10-16 | 1951-10-30 | Thomas F Hannigan | Phonograph tone-arm actuator |
US2631859A (en) * | 1949-07-30 | 1953-03-17 | Allan R Ellsworth | Phonograph record |
US2713088A (en) * | 1949-12-17 | 1955-07-12 | Telephone Answering And Record | Telephone answering and recording device |
US3042413A (en) * | 1960-12-27 | 1962-07-03 | Claude E Frink | Recorded adapter for phonograph records |
US3801110A (en) * | 1972-08-21 | 1974-04-02 | Marvin Glass & Associates | Sound record |
-
1941
- 1941-05-14 US US393435A patent/US2287240A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503609A (en) * | 1947-06-06 | 1950-04-11 | Frank H Barnhart | Phonograph record disk |
US2573328A (en) * | 1948-10-16 | 1951-10-30 | Thomas F Hannigan | Phonograph tone-arm actuator |
US2631859A (en) * | 1949-07-30 | 1953-03-17 | Allan R Ellsworth | Phonograph record |
US2713088A (en) * | 1949-12-17 | 1955-07-12 | Telephone Answering And Record | Telephone answering and recording device |
US3042413A (en) * | 1960-12-27 | 1962-07-03 | Claude E Frink | Recorded adapter for phonograph records |
US3801110A (en) * | 1972-08-21 | 1974-04-02 | Marvin Glass & Associates | Sound record |
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