US1456354A - Safety ejector foe dictaphones and the like - Google Patents

Description

May 22, 1923.

F. W. BARROWS.

SAFETY EJECTOR FOR DICTAPHONES AND THE LIKE Filed March 25. 1922 2 Sheets-Sheet 1 INVENTOR fizz/2x5 Wfla/mws ATTORNEY THE LIKE 2 SheetsfSheet 2 as 29 INVENTOR flan/ Wfiavl azas' BY I F. W. BARROWS SAFETY BJECTOR FOR DICTAPHONES AND Filed March 25.

J29 ff 1;"

"May '22, 1923.

ATTORNEY Patented May 22, 1923.

FRANK W. BARROWS, OF BRIDGEPORT,

PATENT OFFICE.

CONNECTICUT, ASSIGNOR TO COLUMBIA GRAPHOPHONE MANUFACTURING COMPANY, OF BRIDGEPORT, CONNECTICUT, A

CORPORATION OF DELAWARE.

SAFETY EJECTOR FOR DICTAPHONES AND THE LIKE.

Application filed March 25, 1922.

To all whom it may concern:

Be it known that I, FRANK W. BARRows, a citizen of the United States, and a resident of the city of Bridgeport, county of Fairfield and State of Connecticut, have invented certain new and useful Improve ments in a Safety Ejector for Dictaphones and the like, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention relates to a safety ejector or sound-record throw-off for dictating machines and the like, particularly for use in connection with cylinder phonographs of the dictaphone type. The invention is an improvement over the throw-off devices, heretofore in use, and particularly over such devices as disclosed, for example, in the United States patents to Haines, #1,005,025 of October 3, 1911, and Macdonald, #1,152,- 529 of September 7, 1915. These patents disclose throw-off devices, which are at all times in operative position, and adapted to force a cylindrical record from engagement with its mandrel, so that it can be removed without engaging the fingers with the record surface.

Inasmuch as dictators often use the entire cylinder right up to the very end, and, consequently, allow the carriage to feed beyond the bell signal to the end of the feed screw, the recording stylus will, in such cases, drop off the end of the cylinder to the limit of its stop, which is below the surface of the cylinder. Vith the devices heretofore'in use, the dictator might then inadvertently eject the cylinder from the man drel with the throw-off mechanism, without first lifting the sound-box, consequently thrusting the end of the cylinder forcibly against the styli and damaging them. Also, dictators might-and often didstop the carriage at the bell signal, but, subsequently, inadvertently eject the cylinder before lifting the recording or reproducing stylus from the cylinder, consequently cutting a deep line across the length of the cylinder.

An object of this invention is to provide a throw-off device, which will be operative only when the sound-box of the machine is raised from the sound-record, so that the possibility of ejecting the record, while the stylus is engaged therewith, and the result- Scrial No. 546,739.

ing damage to the record and stylus, is entirely eliminated.

Another object is to devise a new and useful mechanical movement, such that the movement of one member will be permitted when a corollary member is in a predetermined position, but prevented when said last-named member is in another predetermined position, said mechanical movement being eifected through a single connection between the members.

Other objects are toprovide a device of this character, which will be of simple con struction, and which will be entirely efficient in operation.

lVith these and other objects in view, an embodiment of the invention is shown in the accompanying drawings, and this embodinient will be hereinafter more fully described with reference thereto, and, finally, the invention pointed out in claims.

In the accompanying drawings Fig. 1 is a combined vertical sectional view and incomplete side elevation of a dictating machine in which an embodiment of the present invention is incorporated, this view being taken along the line 11 of Fig. 2;

Fig. 2 is a plan view of the machine,'partially broken away to disclose the working parts;

-Fig. 3 is a similar view, only taken from the rear;

Fig. 4 is a combined vertical sectional view and side elevation, taken along the line et4: of Fig. 3; and v Fig. 5is a perspective view of the operative elements of the present embodiment of the invention, the associated structure being removed.

Similar reference characters indicate corresponding parts throughout the several figures of the drawings.

Referring to the drawings, the embodiment of the invention disclosed therein is shown as incorporated in a sound recording and reproducing machine of the dictaphone type.

The bed-plate 10 is provided at its ends, adjacent the rear edge, with standards 11 and 12, and at one end forwardly of the standard 11, with an inwardly-extending hollow bearing portion 13, in which is journalcd the shaft 14. This shaft mounts the record-supporting tapered mandrel 15 at one end, and is provided at its other end with a belt pulley 16, over which extends a driving belt 17 adapted to be driven from a suitable motor (not shown).

The sound-box carriage 18 is mounted for longitudinal movement along a hollow slotted shaft 19, rigidly supported at its ends in the standards 11 and 12 and in which is provided a feed screw adapted to advance the carriage longitudinally of the mandrel, as is usual in such machines. The carriage is maintained against rotation about the shaft 19 by means of a support 20 bifurcated at its lower end, and slidably engaging a bar 21. supported at its ends in the standards 11 and 12. A sound-box or speaker 22 is mounted in the sound-box carriage, and is provided with both recording and reproducing styli 23 and 2 1, and is adapted to be moved into any one of three positions-recording, neutral, or reproducing means of a lever 25 projecting upwardly from the carriage, and havin a hubportion 26 journaled upon the shaft 19. The peripheral portion of the hub is exposed through a slot 27 provided in the rear portion' of the carriage casing.

.[n Fig. 1, the neutral position is indicated. in full lines, the sound-box being raised from engagement with the sound-record. The long dash lines indicate the recording position; and the short dash lines the reproducing positionthe sound-box beinglowered in these two latter positions. This type of sound-box carriage and shift- 8 ing mechanism, which is merely illustrated as exemplary, is disclosed in United States patent to Macdona-ld, #1,100,024, dated J une 16, 1914, to which reference may be 112d for a further detailed description there- 0 \Vithin the hollow bearing portion 13, there is provided a boss 28 having a cylindrical bore, in which is slidably mounted a shaft 29 provided at its end with an arcuate head 30, disposed in concentric and upwardly spaced relation to the surface, of the mandrel. Normally, the head 30 is seated in a recess 31 provided in the front wall of the portion 13, and upon outward reciprocation of the shaft 29 is adapted to engage the. end of the cylindrical record mounted on the mandrel 15 and force it outwardly, thereby permitting it to be removed by inserting the'fingers within its bore. The inner end of the shaft 29 is provided with a recess32 having opposed V- shaped end walls and in which is engaged the end of a. crank arm 33 mounted upon the lower end of a vertical rock-shaft 34, journaled in a bearing boss 35 provided upon the portion 13, and provided at its upper end with a laterally-extending handle 36.

A spring 37 is coiled about the shaft, and has one end hooked about the crank arm 33 and its other end restrained by engagement with the inner wall of the portion 13, the spring normally maintaining the shaft 29 in its retracted position. The shaft is adapted to be reciprocated outwardl to remove a record by turning the hand e 36.

The shaft 29is provided upon its underside with a straight-sided cutout or notch 38 normally registering with a slot 60 in the boss 28, and in which the end of a leverarm 39, extending through a slot 40 in the portion 13, is adapted to be engaged and disengaged to respectively lock and release the shaft 29. The lever-arm 39 is provided with a hubportion 41, fixed b means of a"- set screw 42 upon av shaft 43 o non-circular cross section-square, as shown and havin its cylindrical ends 44 (Fig. 2) journa led for rotation in bearing bushings 15,

adjustably mounted in the standards 11 and I 12, and fixed' gainst longitudinal movement by set screws 46.

Upon the square shaft 43, there is provided a lever 47 slidably mounted for rotary movement therewith, its hub 48 having a bore corresponding to the cross section of the shaft, and being provided with reduced bearing ends 49 and 50 (Fig. 2), journaled in the parallel side portions 51 and 52 of a bracket 53, secured at the rear side of the sound-box carriage by screws 54.

The upper end of the lever is provided with a tooth 55, which is held in engagement with a projecting cam-portion 56 of the hub-portion of the lever 25, by means of a spring 57 (Figs. '1 and 4) tied between the lever 47 and a lug 58 formed on the bracket The cam-portion 56 is provided with a depression or notch 59, into which the tooth 55 is adapted to engage, and at each side of the depression, there are provided raised portions formed cencentric to the axis of rotation of. the lever 25. The notch 59 is engaged by the tooth 55 in the neutral position of the'lever 25and in which position, the sound-box is raised from the surface of the record-the lever arm 39 being moved in this position, through the rotation of the shaft 43, out of engagement with the notch 38 of the shaft 39, and thereby permitting the throw-off mechanism to be operated to remove the record from the man- 'drel. In the other positions of the lever Thus, it is' seen that it is only possible to remove the record from the mandrel by means of the ejecting mechanism when the lever 25 is in neutral position, and the sound-box is raised from engagement with the record surface. The chance of damaging-the record surface or the styli, by removal of the record while the sound-box is in either recording or' reproducing position, is entirely removed. I r

- The device is of extremely simple construction and operation, and can be conveniently incorporated in new machines, or supplied as an attachment for machines that are in use. I

While the invention is illustrated in the drawings and described with particularity, as applied to a talking-machine of a certain type, it'is to be especially understood that it is not restricted to the form shown, or to any of thespecific details thereof, as, obviously, changes in construction and design can be made without departing from the invention, and without affecting the different sub-combinations thereof. Moreover, certain features of the invention are capable of use without other features thereof. Such changes are, of-course, contemplated by the invention and would not constitute any departure therefrom, as defined in the appended claims.

Having described the invention, what is claimed is:

1. In a machine of the character described, a record-support, means for removing a record therefrom, a sound-box adapted to be engaged with and disengaged from the record, and means adapted to prevent operation of said first-named means and rendered operative through engagement of the sound-box with the record.

2. In a machine of the character described, a record-support, means for removing a record therefrom, a sound-box adapted to be engaged with and disengaged from the record, and means adapted to prevent removal of the record by said first-named means and rendered operative through engan'ement of the sound-box with the record.

3. In a machine of the character described, a support for cylindrical records, a sound-box adapted to be raised and lowered, record-ejecting means, and means adapted to prevent operation of the record-ejecting means and rendered operative through the lowering of the sound-box.

4. In a machine of the character described, a support for cylindrical records, a sound-box, means for moving the soundbox into recording, or reproducing, or neutral positions. record-ejecting means, and cooperative locking means between the record-ejecting means and the sound-box moving means adapted to lock the ejecting means in the recording or reproducing position of the sound-box and to release it in the neutral position. i

5. In a machine of the character described, means whereby the record is ejected from the record-support, and means whereby said first means is made inoperative through the engagement of the sound-box with the record.

6. In a machine of thecharacter described, means whereby the record is ejected from the record-support, and means whereby said first means is madeinoper ative through movement of the sound-box "toposition to engage the record.

7. In a machine of the character described, the combination with a record-support and a sound-box, of means for ejecting a record from said support, and means for rendering said first means inoperative through movement to record-engaging position of the sound-box. f

8. In a machine of. the character de scribed, the combination with a phonograph record and a sound-box, of a. support for the record, means for ejecting the record from its support, and means for rendering said first means inoperative through move ment to record-engaging position of the sound-box.

9. In a machine of the character described, the combination with a cylindrical phonograph record and a sound-box, of a mandrel for the record, means for ejecting the record from its mandrel, and means for rendering said first means inoperative through movement to record-engaging positron of the sound-box.

10. In a machine of the character described, the combination with a cylindrical phonograph record and a sound-box, of a mandrel for the record, means for ejecting the record from its mandrel by engagement with the end thereof, means adapted to lock said ejector-means in retracted position, means for shifting the sound-box into and out of record-engaging position, and means controlled by the shifting means adapted to operate said locking means to release the e ector means in the disengaged position of the sound-box.

11. In a machine of the character described, the combination with a cylindrical phonograph record and a sound-box, of a mandrel for the record, means for ejecting the record from its mandrel by engagement with the end thereof, means adapted to lock said ejector means in retracted position, means for shifting the sound-box into and out of record-engaging position, and cam means controlled by the shifting means adapted to operate said locking means to release the ejector means in the disengaged position of the sound-box.

12. In a record-ejector mechanism, means for locking and releasing the ejector, and

means for operatively connecting it to the sound-box raising and lowering mechanism of a phonograph, whereby said first means is adapted to lock the ejector mechanism in the lowered position of the sound-box and to release it in the raised position.

' 13. In a machine of the character described, a record-support, a longitudinallymovable sound-box, ejector means for removing a record from the support, locking means therefor and means connected to said locking means and moving with the soundbox, and adapted to operate the locking means to release the ejector when the soundbox is disengaged from a record.

14. In a machine of the character described, a record-support, a movable soundbox carriage, a sound-box, sound-box-shifting means adapted to move the sound-box into and out of record-engaging position, means whereby the record is ejected from the recordsupport, a locking lever adapted to engage'said means to lock it, a rock-shaft supporting said lever, a record-lever rotatable with the rock-shaft and movable with the sound-box carriage, and means controlled by said sound-box-shifting means adapted to operate said record-lever to rocooperate with an article to be moved by said first member, and means cooperatively relating said members to permit movement of the first member when the second member is in one predetermined position, and to prevent such movement when it is in another 'predetermined position.

16. In combination, a movement imparting member, a second member adapted to cooperate with an article to be moved by said first member, and means to permit movement of the first member when the second member is in one predetermined position, and to prevent such movement when. it

is in another predetermined position, said means including a single connection operatively relating the members.

Signed at Bridgeport, in the county of Fairfield, and State of Connecticut, this 23rd "I day of March, p FRANK NV. BARROWS.

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