US1093732A - Combined recorder and reproducer. - Google Patents

Description

J. J. SGULLY.

COMBINED REGGRDERV AND BEPBODUCBR.

APPLIUATIOK FILED 00T. 28, 1912.

1,093,732. Patented Apr. 21, 1914.

mi im UNITED STATES vPATENT OFFICE.

JOHN J. SCULLY, F BRIDGEPORT,CONNE'CTICUTASSIGNOR TOAMERICAN GRAPI-IO- PHONE COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION 0F WEST VIRGINIA.

COMBINED RECORDER', AND Imrnonncnn.

Application filed October 28, 1912. Serial No. 728,113.

To all 'whom it may concern Be it knownt-hat I, JOHN'J. SCULLY, a citizen of the United States of America, and a resident-of Bridgeport, Fairfield county, Connecticut, have invented a new and useful Improvement in Combined ARecorders and Reproducers, which invention is fully set.l forth in the following specification- This invention relates to grapliophones or talking-machines whose speaker or dia-- phragm-head, sometimes referred to as lthe recorder-reproducer, is vprovided with two styli upon the one diaphragm, and is adapted to be ,shifted longitudinally for use interchangeably as a recorder or as areproducer. More particularly, the present invention may be regarded as an improvement upon the structure set yforth in the prior Macdonald Patent No. 1,003,625, granted ySeptember 19, 1911. In instruments of this character it is desirable that therecorder reproducer be comparatively light when re.- cording, but comparatively heavy when reproducing; and in said Patent No. 1,003,625, this is accomplished by means of avertically-movable weight pivoted upon the neck of the diaphragm-head in such manner that it will bear its full weight upon the upper face of said head during the operation of reproducingbut will be held out of contact` therewith duringrecording. It is also desirable that the recorderfreproducer be capable -of lateral as well as vertical play when reproducing, blut be locked absolutely' against lateral play during recording; and in said patent ythis 1s accomplished by means of the engagement ofthe forward portion or nose of said weight .Within a ixed support. However, in the practical operation of the device of said prior Macdonald pat-` ent, it has been found that during the -ope'ration 'of recording, the suspended-weight is so connected`^to the stemor neck ofthe recorder-reproducer as to exert upon the latter a drag, which, although slight, is vsometimes Q appreciable in preventingperfect accuracy o operation; and it has also been found that, owing perhaps torlack ef utmost precision in wholesale manufacturing voperations,the unintended looseness of the parts sometimes permits a slight` lateral play of the diaphragm-head dur-ing recording.

According to the present invention, the

vertically-swinging weight, though mounted specification of Letters Patent.

upon the diaphragm-head 4ory recorder-re- 'Patented Apr. 21, 1914.

producer, .is pivot-ed thereon concentrically of the horizontal pivot or axis of the latter,

-so that the weight and the recorder-reproducer, in swinging vertically, swing v independently of each other and Without interference from each other.

4One feature of the invention, then, consists of the novel arrangement and mounting of further in the various` features-of construction and arrangementv hereinafter pointed out and claimed. 'f

The invention-will bembest understood by reference to the annexed drawings, in`

` which- Figure 1 is an end view, partly in transverse section, f a dictation graphophone equipped with a preferred embodimentof the present invention; Fing. 2 -is a longitudinal section through lthe novel mountingof the speakerzand of the weight; and Fig. 3 is^a similar view on an enlarged scale.

In these `drawings the cylindrical recordtablet or blank-tablet 1, the carriage-sleeve 2 (which surrounds the feed-screw, not showrf) and the cam-ring having the handle '3 and the two cutaway-portions 4: and 5 the telescoping-sleevevll, connected to nose i 6 by link 12, and the collar 13 pivoted in said sleeve by pin 14; also the recorder-reproducer 15, Vwith its tubular neck "16 (Whose spherical rear end is to be mounted en a. .horizontalaxis,within-said collar), and its recording-stylus 17- and reproducen-stylus 18 carried by the diaphragm (not shown). .All

the foregoing are constructed andoperated as set forth in said prior patent.

On the upper face of the tubular member 48 (preferably in a longitudinal groove) is secured the flat spring 20, that carries the plunger 2l which protrudes through a lon- 'gitudinall slot in the telescoping-sleeve 1l,

and is provided witha conical nose adapted msI to enterfthe alined slotl or groove 22 in the 110 collar 13, so as to eXert pressure upon the walls of the collar when the latter is shifted forward (into the recording-position). This insures that, during recording, the collar 13 and thereby the diaphragm-head are locked against any lateral play.

23 represents the weight, a block of lea or the like, which may be provided on its lower side with the boss or cushion 24 of soft rubber or the 'like adapted to rest upon the upper face of the diaphragm-head. To the weight is secured the spring-metal strip which provides the two arms 25-25 and the forwardly-projecting sloping nose 26, adapted (when protruded into recording-position) to slide into and rest upon the seat 7 of the main casing. The rear ends of said arms 25 are apertured to lit over and turn freely upon the two alined bosses `27 upon opposite sides of the spherical enlargement at the rear end of the neck 16 ofthe recorder-reproducer.` Preferably said bosses are afterward upset to secure said arms in place. N ext, the collar 13 having been secured in the sleeve 11 by the pin 14, the recorder-reproducer and the weight (pivoted together as just described) are inserted into the col-- lar; and set-'screws 28 (with their jam-nuts) are inserted through the cutaway portions 29 in thesleeve and through screw-threaded openings in the collar, so that their conepoints will enter the cone-seats in the bosses 27 (see Fig.4 3). These cone-bearings are of course in horizontalv alinement (parallel to the feed-screw and the mandrel), and are concent-ric with the axes of the arms 25. These 'assembled parts (diaphragm-head, weight, collar, and telescoping-sleeve) are inserted into thetwbular-member 8, which in turn is secured to the main casing by the screw 10, the link 12 being properly connected as shown in Fig. 1-.

. The full lines in'Fig.y 1 represent the instrument in the ./position of reproducing.- The block 23 is applying its full weight upon the recorder-producer, and the two will rise and fall as one, and likewise can swing to either side upon the single pivotI 14., rPhe vrecording-position is indicated by the dotted lines in Fig. 1: the weight is suspended-at onel end at` 30, and at the other end inv the seat 7; while the diaphragm- .head,lpivoted at 30, can rise and fall entirely unalfectedbyA the presence of the weight.

In this position also, the spring-pressed plunger 21 locks the collar 13, and thereby the recorder-reproducer, against any lateral play whatever.

The invention has thus been described with considerable fullness of detail, but only for the sake of clearness; since the invention is not limited to the precise construction and arrangement of the parts as shown, and parts of the invention can be used to the exclusion of other parts, or modifications resorted to, without departing from the spirit of the invention.

The invention having been thus described, what is claimed is:

1. In a recordcr-reproducer for talkingmachincs, the combination with a head pivoted to swing laterally as well as vertically and having a diaphragm carrying a recording-stylus and a reproducing-stylus, and means for shifting either stylus into operative position while removing the other, of a weight-device pivoted upon said head to swing concentrically therewith in the same vertical plane and adapted to apply pressure upon the reproducing-stylus during reproduring and to have its entire weight held automatically lifted so as not to apply pres-l sure to the recording-stylus during recording.

2. In a recorder-reproducer for talkingmachines, the combination with a head pivoted to swing laterally as well as vertically and having a diaphragm carrying a recording-stylus and areproducing-stylus, and means for shifting either stylus into operative position while removing the other, of a boss arranged on each side of the rea-r of said head concentrica-lly of its horizontal pivot, a weight-device pivoted upon said bosses so as to swing concentrically with said head in the same vertical plane and with its free end adapted toy bear upon said head during the reproducing-operation, and a seat for automaticallyy holding the free end of said weight-device lifted out of contact with said head during the recordingoperation.

In testimony whereof I have signed this `specification in the presence of two subscribing witnesses.

JOHN J. SCULLY.

Witnesses:

FRANK L. CAPrs, J. S. GRIFFITH.

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