US1218799A - Phonograph recorder and reproducer. - Google Patents

Description

H. G. PAPEf PHONOGRAPH RECORDER AND REPRODUCER.

APPLICATION FILED MAR. 8, 1915.

Patented Mar. 13, 1917.

HERMAN G. PAPE, OF NEW YORK, N. Y.

PHONOGRAPH RECORDER AND REPRODUCEE.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application filed March 8, 1915. Serial No. 12,770.

To all whom 'it may concem:

Be it known that I, HERMAN G. PAPE, a citizen of the United States, and resident of New York, in the county of New York and State of New York, have invented a certain new and useful Phonograph Recorder and Beproducer, of which the following is a specification.

My invention relates to an instrument adapted for making phonograph records of sounds mechanically, electrically or telephonically transmitted to the instrument, which instrument is also adapted for use as a reproducer.

An object of the invention is to provide a practical means for making records on phonograph recording blanks as cylinders, disks, or the like, of mechanically or telephonically transmitted sounds such as musical productions, speeches, or other subject matter which it may be desired to record for phonographic reproductions.

A further object of the invention' is to 'provide an instrument which is adapted both for making records of telephonically transmitted sounds and also of sounds conv veyed directly thereto independently of the telephone circuit and for reproducing the same independently of the telephone circuit.

The instrument may comprise an electromagnet for connection in a telephone circuit, an armature for the magnet arranged to vibrate in response to electrical impulses in the electro-magnet, a diaphragm connected to vibrate with the armature, and a Stylus or style comprising a sapphire or diamond point mounted on the diaphragm. In making a record the style may bear on a suitable tablet or recording blank, as for example, a revolving waX cylinder ,and support the weight of the electro-magnet. The vibrations of the style with the diaphragm operate in a well known manner to produce in the impression material of the cylinder a record capable of reproduction in a phonog'aph. The electro-magnet may be mounted within a casing provided with means through which sounds may be conveyed directly to the diaphragm and vibrate the latter for making records independently of the telephone circuit.

Other features of the invention will appear hereinafter.

In the' accompanying drawings, Figure 1 is a sectional elevation View of an instrument embodying the principles of my invention.

` connection with thebase of the shell 2. The

electro-magnet is mounted on a support 4 n the form of a plate or disk with a central screw threaded opening to receive the correspondingly threaded end of the shell 2, the latter being provided with a flange 5 which A abuts against the disk 4.

A diaphragm 6, which is preferably made of glass but may be made of other suitable material, is mounted on the supporting plate 4:, being held thereon by a threaded ring 7 which forms with said plate an annular recess to receive the periphery of the diaphragm. Washers or gaskets 8 of paper or other compressible material are placed in said annular recess on opposite sides of the diaphragm. The plate 4 forms a cap or end piece for a' casing 9 containing the electromagnet, said plate being connected to the casing by a hinge 10, and supported at a point opposite the hinge by a latch or bail 11. The latch 11 permits a limited up and downmovement of thesupport 4 and parts carried thereby for a purpose that will appear hereinafter. The casing may be shaped, as shown, for example in Fig. 4, so that when the latch is released the support 4 can be swung down to Carry the electromagnet out of the casing.

An armature 12 is yieldingly supported above the electro-magnet for Vibration in response to electrical impulses in the magnet coil. The means for supporting the armature comprises a hollow cylinder or ring 13 having a screw threaded connection with the magnet shell 2, a flange 14 on said shell forming a shoulder against which the lower end of the cylinder abuts. A flexible spider comprising thin elastic radial arms 15, 'is clamped between the upper end of the cylinder 13 and a ring 16 threaded on the cylinder. A stem 17 fixed to the armature, projects upwardly through a central opening in the spider but out of direct contact therewith, and is connected to the spider by cement 18.

A connection between the stem 17 and the diaphragm 6 comprises a hollow rod or tube 20 extending through the core 3 of the elec- -F ig. 2 is a sectional plan View as indicated `t'o-magnet. Thc upper end of said tube may eXtend through an opening in the armature 12 and is provided with a roughened stem or connecting piece 21 which projects into the hollow stern 17 and is Secured thereto by the cement 18. The lower end of the stem20 has fixed thereto a foot 22 which is cemented to the diaphragm 6.

With the above Construction, the armature may vibrate freely in response to magnetic impulses set up therein by the electrical impulses transmitted through the electro-magnet. to the diaphragm, the latter being capable of producing sound waves corresponding to those electrically transmitted through the electro-magnet. The elastic spider while permitting the armature to vibrate, has a constant tendency to return the armature to its normal position of rest and to thereby bring the diaphragm also to its normal position.

To enable the'instrumcnt to be used as a phonautograph for registering the vibrations set up in the diaphragm, a style 23 having a point of hard material 'as a sapphire or diamond point, is attached to the diaphragm as by means of a holder 24:

which may be made of a sheet of aluminum formed into a tube in the end of which the style 23 is Secured, said holder having fiat portions or wings 32 cemented to the diaphragm, the end of said holderopposite the style having a flat portion 26 also cemented to the diaphragm.

In operation, the style 23 may rest on a blank suitable for recording, as for example a revolving cylinder 25 which is to receive the record, and the weight of the support 4 and the electro-magnet and other parts mounted thereon is carried by the said style which is thus caused to bear with a yielding pressure against the blank 25. The vibrations set up in the electro-magnet cause the style 23 to vibrate and thereby produce in the impression receiving material of the blank 25, tracings or impressions having characteristics corresponding to the sounds producing the vibrations. In this manner phonautograph records are produced of the telephonically transmitted sounds. It will be seen that the instrument may be properly termed a telephonautograph.

The casing 9 forms a carrier for the electro-magnet and its support 4, and is designed to be mounted on the usual swnging arm or carrierto swing toward and from the cylinder, and which arm is caused to travel lengthwise of the cylinder as the latter rotates, in a manner well understood by those familiar with the art. The casing is provided with a` fiange 33 by which it is supported on said swinging arm.

The instrument is further adapted for making records of sounds transmtted there- These vibrations are imparted to independently of the electro-magnet and its circuit. For this purpose the casing 9 is formed with a tube or a funnel 27 to receive the sounds to be recorded and for transmitting or carrying the reproduced sounds. The sounds entering said tube are transmitted through a perforated diaphragm 28, and pass through the casing around the electromagnet and through an annular series of o enings 29 and impinge on the diaphragm. l`he diaphragm is thus vibrated and the sounds recorded by the vibrating style. It will be seen that the instrument is also' adapted to serve as a reproducer, and as an ordinary telephone receiver. The terminals of the magnet coil may be attached to electrical terminal sockets 30 mounted in the casing to receive spring-clip terninals of the telephone circuit wires.

Sound waves produced by vibrations of the diaph'agn G may be transnittcd through the openings 29, thence through the openings in the grid 28 and out of the tunnel 27, to which may be connected any other Well known or desired sound conveyer, for the accomplislnnent of the purpose set forth.

Fig. 4: illustrates a modification in which the diaphragm 6' is made of magnetic material and is vibrated directly by the electro-magnet. In other words the diaphragn itself forms the vibrating armature. The style 23' may be in the form of a rod supported adjacent its point by a block 31 secured to the armature.

Modifications other than those herein disclosed may be resorted to without departing from the spirit and scope of my invention and portions of the invention may be used without others.

What I claim is 1. In an instrument for making phonograph records, the combination of an electro-magnet, a diaphragm, means for causing the diaphragm to vibrate in response to electrical impulses in the electro-magnet,

tro-magnet, said support-ing plate being hinged to the casing, and a Stylus connected to the diaphragm to vibrate therewith.

.3. In a sound recording instrument, the

combination of an electro-magnet, a daphragn, means for causing the diaphragm to vibrate in response to electrical inpulses in the electro-magnet, a plate providing a peripheral support for the diaphragm, and on which the electro-magnet is mounted, an inclosing casing for the electro-magnet, said supporting plate being hinged to the casing, a Stylus connected to the diaphragm to vibrate therewith, said casing having an opening to provide a passage for the transmission of sound Waves through the casing to the diaphragm, whereby the latter may be vibrated by the direct action thereon of sound waves transmitted thereto independently of the electro-magnet. 4

4. In a sound recording instrument, the combination with an electro-magnet, of a diaphragm, means for causing the diaphragm to vibrate in response to electrical impulses in the electro-magnet, a plate providing a peripheral support for the diaphragm, and on which the electro-magnet is mounted, an inelosing casing for the electronagnet, said supporting plate being hinged to the casing, a stylus connected to the (liaphragm to vibrate therewith, said casing having an opening to provide a'passage for the transmission of sound Waves through the casing to the diaphragm, whereby the diaphragm may be vibrated by the direct action thereon of the sound waves transmitted thereto independently of the electromagnet, said diaphragm being located on the lower. or outer side of sad end plate, the latter having open portions for the passage of said sound waves.

5. In a sound recording instrument, the combination with an electro-magnet, and an armature therefor, of a support on which the electro-magnet is mounted, a diaphragm mounted on said support, means forming an elastic mounting for the armature permitting it to vibrate freely in response to electrical impulses in the electro-magnet, a stem connecting the diaphragm andsaid armature, cement connecting the armature to said elastic means and permitting the diaphragm to be connected through said stem to said elastic support without stress or strain on the diaphragm when in its normal position of rest, and a Stylus connected to vibrate with the diaphragm.

6. In a sound reproducing instrument, the combination of an electro-magnet having a vertically disposed hollow core, a support on which said magnet is mounted, a horizontally disposed diaphragm mounted on said support beneat-h the electro-magnet, an armature above the electro-magnet, a spider located above the electro-magnet and compri'sing elastic radial arms, said spider supported on the electro-magnet, means for connecting the armature to 'the'spder, a stem extending through said hollow; magnet core and providing a connecton betweenthe dlaphragn and the said armature, and sound recording means actuated by the diaphragm. 7 In a sound reproducng nstrument, the

combination With an electro-magnet, means for supporting a diaphragm beneath the electro-magnet, the electro-magnet having a hollow core, an annular support mounted on the electro-magnet and extending up- Wardly therefrom, a spider comprising elastic radial arms attached at their outer ends to said support, an armature located above the electro-magnet, a stem extending through said hollow core and attached at its lower end to the diaphragm, and means connecting the armature and the upper end of said stem to the spider at its center, whereby the armature is Suspended from the spider to vibrate in response to electrcal impulses set up in the electromagnet, and said vibrations are transmitted to said diaphragm, and a Stylus connected to the diaphragm 'or recording the vibrations.

` 8. The combination of an electro-magnet having a vertical hollow core, an armature above said electro-magnet, a diaphrag below the electro-magnet, a rod extending through said core and cctng the armature and diaphragm,`a s ylns connected to the diaphragm, means for elastically\ supporting the armature and said rod at a point above the electro-magnet, a casing inclosing the electro-magnet, and an end plate or closure for the lower end of the casing and hinged to the casing, the magnet and diaphragm -both being mounted on said end plate.

9. In an instrument for making phonographic records, the combination of an electro-magnet, a diaphragm arranged to be vibrated thereby, a support on which said electro-magnet and diaphragm are mounted, means actuated by the diaphragm to record the vibrations on a rotating cylinder, and a carrier on which said support is mounted to move freely relatively to the carrier toward and from the cylinder and permitting the weight of the electro-magnet and support to be carried on the cylinder while said carrier moves lengthwise of the cylinder.

10. In a phonographio instrument, the combination of an electro-magnet, means actuated thereby for producing on a recording blank, a record corresponding to electrical impulses in the electro-magnet, a support on which the electro-magnet is mounted, a carrier to which said support is hinged to per-mit the electro-magnet to Swing toward and from said recording blank, said support and its carrier adapted to traverse the recording blank.

11. In a phonographic instrument, the comhina tion of an electro-magnet, means vibrated thereby for making a record on a recording blank, a support on which said electro-magnet and said means are mounted,

and a carrier to which said support is hinged to Swing with said electro-magnet and said means toward and from the recording blank, said carrier and support being adapted to travel as a unit to traverse the recording blank.

Signed at NeW York in the county of New York and State of NeW York this 2nd day of March, A. D. 1915.

HERMAN G. PAPE.

witnesses:

IDA B. PAPE, IDA D. PAPE.

Images