US708581A - Phonograph. - Google Patents
Phonograph. Download PDFInfo
- Publication number
- US708581A US708581A US4262001A US1901042620A US708581A US 708581 A US708581 A US 708581A US 4262001 A US4262001 A US 4262001A US 1901042620 A US1901042620 A US 1901042620A US 708581 A US708581 A US 708581A
- Authority
- US
- United States
- Prior art keywords
- rod
- diaphragm
- arm
- recording
- phonograph
- 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
- G11B3/02—Arrangements of heads
- G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
Definitions
- the present invention refers to a diaphragmholderfor holdingand for guiding diaphragms in phonographs.
- a diaphragmholderfor holdingand for guiding diaphragms in phonographs As will be known, there are two kinds of said diaphragms-recordingdia phragms and reprodcoing-diaphragme.
- recording-diaphragm marks into the surface of the record-cylinder a regular spiral line and must, therefore, be prevented from making any lateral movements.
- the reproducing-diaphragm follows the spiral line marked down by the recording-diaphragm.
- the apparatus described hereinafter is arranged in such a manner that the diaphragm which happens to be in use is held according to the purpose which it has--that is to say, reproducing-diaphragms are held in a loose position and, on the other hand, recording-dia phragms are held in a secured position.
- Figure l is a front view of the invention with parts omitted.
- Fig. 2 is a plan View.
- Fig. 3 is a sectional view on line A B of Fig I.
- Fig. 4 is a plan view, partly in section.
- a is the instrument-frame of a phonograph arranged in the usual manner on two guide-bars d and e, so that it can be moved.
- the instrument-frame has the form of a bentframe supported within a bridge b.
- the bridge-b and the instrument-frame a constitute one combined part and support, by means of two pointed screws h h, Figs. 2 and 3, a block p.
- Said block p is provided with an axle or pivot 7o, upon which a lat rod g is supported, so that it can be moved vertically.
- Said rod or plate g can move horizontally, because the block p, carrying it, can swing on the pivots 7o.
- the plate g serves for holding in place the diaphragms.
- a slotl is provided in said arm or plate g, through which a cam-rod fm extends.
- Said rod is elliptical in cross-section and when turned, as shown in Fig. 4E, it prevents lateral movement of the plate, while allowing free vertical movement.
- arm or plateg can have free lateral movement with the diaphragm.
- the locking-rod m it is provided with an arm u..
- a pivoted arm for supporting the diaphragm having a slot, and a revoluble locking-rod passing through said slot and flattened on its side, said rod being arranged' to limit the lateral movement of the pivoted arm, substantially as described.
- a holding device for recording and speaking apparatus in phonographs comprising an arm g, and a locking-rod m on which the arm is guided, said rod being flattened laterally, substantially as described.
Description
N0-4 708,'58I. v
wlvPEISKER. Patented Sept, 9j, |902` PHonoGAPH;
(no Model.) Ppmm med me. 1901.)
iFICE WILHELM PEISKER, `OF BERLIN, GERMANY.
PHONOGRAPH.
SPECIFICATION forming part of Letters Patent No. 708,581, dated September 9, 1902.
. Application tiled January 9, 1901. Serial No. l12.620. (No model.)
To a/ZZ whom t may con/cern:
Be it known that I, WILHELM PEISKER, residing at Berlin, Germany, have invented Improvements Relating to Phonographs, of which the following is a specification.
The present invention refers to a diaphragmholderfor holdingand for guiding diaphragms in phonographs. As will be known, there are two kinds of said diaphragms-recordingdia phragms and reprodcoing-diaphragme. The
recording-diaphragm marks into the surface of the record-cylinder a regular spiral line and must, therefore, be prevented from making any lateral movements. The reproducing-diaphragm follows the spiral line marked down by the recording-diaphragm. As any lateral pressure 0r any mechanical iniinences might canse the reproducing-diaphragm to be lifted off of the spiral line, said reprodwing-diaphragm must be allowed to have free lateral play. Now the reproducing-diaphragm mnstmovefreely and unobstructedly, while the recording-diaphragm has to be held rmly in its position.` Consequently the apparatus described hereinafter is arranged in such a manner that the diaphragm which happens to be in use is held according to the purpose which it has--that is to say, reproducing-diaphragms are held in a loose position and, on the other hand, recording-dia phragms are held in a secured position.
In the accompanying drawings, Figure lis a front view of the invention with parts omitted. Fig. 2 is a plan View. Fig. 3 is a sectional view on line A B of Fig I. Fig. 4 is a plan view, partly in section.
In the drawings I have shown only enough of the ordinary apparatus as is necessary to a complete understanding of my invention.
In Fig. 1, a is the instrument-frame of a phonograph arranged in the usual manner on two guide-bars d and e, so that it can be moved.
The instrument-frame has the form of a bentframe supported within a bridge b. The bridge-b and the instrument-frame a constitute one combined part and support, by means of two pointed screws h h, Figs. 2 and 3, a block p. Said block p is provided with an axle or pivot 7o, upon which a lat rod g is supported, so that it can be moved vertically. Said rod or plate g can move horizontally, because the block p, carrying it, can swing on the pivots 7o. The plate g serves for holding in place the diaphragms. In order to limit the movements of the arm or plate and to allow it at times more play, a slotl is provided in said arm or plate g, through which a cam-rod fm extends. Said rod is elliptical in cross-section and when turned, as shown in Fig. 4E, it prevents lateral movement of the plate, while allowing free vertical movement. However, if the cam or locking rod m is given a quarter-turn then arm or plateg can have free lateral movement with the diaphragm. To insure the easy and convenient turning oi' the locking-rod m, it is provided with an arm u.. Two stops oc m, arranged on the frame a, serve to limit the movement of the arm, so that the locking-rod m can be brought speedily and without difficulty into the recording or into the reproducing position.
Having now described my invention, what I claim as new, and desire to secure by Letters Patent, isl. In combination, a pivoted arm for supporting the diaphragm, having a slot, and a revoluble locking-rod passing through said slot and flattened on its side, said rod being arranged' to limit the lateral movement of the pivoted arm, substantially as described.
2. A holding device for recording and speaking apparatus in phonographs comprising an arm g, and a locking-rod m on which the arm is guided, said rod being flattened laterally, substantially as described.
In Witness whereof I have hereunto set my hand in presence of two witnesses.
WILHELM PEISKER. Witnesses:
HENRY I-IASPER, WOLDEMAR HAUPT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4262001A US708581A (en) | 1901-01-09 | 1901-01-09 | Phonograph. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4262001A US708581A (en) | 1901-01-09 | 1901-01-09 | Phonograph. |
Publications (1)
Publication Number | Publication Date |
---|---|
US708581A true US708581A (en) | 1902-09-09 |
Family
ID=2777110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US4262001A Expired - Lifetime US708581A (en) | 1901-01-09 | 1901-01-09 | Phonograph. |
Country Status (1)
Country | Link |
---|---|
US (1) | US708581A (en) |
-
1901
- 1901-01-09 US US4262001A patent/US708581A/en not_active Expired - Lifetime
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