US2522384A

US2522384A - Stylus guide device

Info

Publication number: US2522384A
Application number: US21225A
Authority: US
Inventors: Lapir Joseph
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-04-15
Filing date: 1948-04-15
Publication date: 1950-09-12
Anticipated expiration: 1967-09-12

Description

, Filed April 15, 1948 Sept. '12, 1950 I 1 J, LAP IR 2 2,522,384 STYLUS GUIDE DEVICE v v 2 Sheets-Sheef l Sept. 12, 1950 J. LAPm STYLUS GUIDE DEVICE 2 Sheets-Sheet 2 Filed April 15, 1948 INVENTOIIR. 2 Jose oz -[a;0&'/' Y ATTORNEY Patented Sept. 12, 1950 UNITED STATES PATENT OFFICE STYLUS GUIDE DEVICE Joseph Lapir, Brooklyn, N. Y. Application April 15, 1948, Serial No. 21,225

Claims.

This invention relates to new and useful improvements in means for making sound records. More specifically, the invention proposes the construction of a means formaking sound records characterized by a device for attachment to a conventional phonograph having a turntable for a standard record upon which a record blank to be cut is adapted to be mounted in a manner to rotate with the turntable.

Still further it is proposed to characterize the new attachment by a universally supported horn having a sound sensitive recording stylus means with a vertical sound box. It is proposed to clamp a pair of arms on to the edge portions of the sound box. It is further proposed to mount the follower means on said arms for following the groove of the standard record and indirectlyand of the objects and advantages thereof, ref-- erence will be had to the following description and accompanying drawings, and to the .appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of thisdisclosure:

Fig. 1 is a plan view of means for making sound records, constructed in accordance with the invention.

Fig. 2 is a fragmentary elevational view of Fig. 1.

Fig. 3 is a fragmentary sectional view taken on the line 3-3 of Fig. 1. I I

Fig. 4 is a fragmentary vertical sectional view taken on the line 4--4 of Fig. 1.

Fig. 5 is a fragmentary enlarged vertical sectional view taken on the line.5--5 of Fig. 1.

Fig. 6 is an enlarged transverse sectional view taken on the line 6--6 of Fig. 5.

Fig. 7 is a fragmentary sectional view similar to Fig. 5 but illustrating a modified form.

The means for making sound records, in accordance with this invention, is used in combination with a phonograph 10 having a turntable H for a standard record l2. has the usual blank central area upon. which .is placed the new blank record l3. This blank 13 This record. I2-

may be adhesively attached to the record l2 so as to turn with the record. However, the adhesive must be of a type which will permit the record It to be removed when'completed. The details of the phonograph it and the driving mechanism of the turntable II will not be given in this specification as they form no part of the invention.

The new record making means includes a horn it which is universally supportedon a bracket l5 which is mounted on the phonograph Hi near the turntable. This bracket I5 turnably supports a stud it which connects with a yoke H, in turn pivotally connected by a pintle rivet :8 with lugs l9 on the bottom of the horn I4. The rear end of the horn I4 is equipped with a sound sensitive recordin stylus means 22 having a vertical sound box. The details of this stylus means will not be given in this specification since this is old structure.

A pair of arms 2| is clamped to the edge portion of the sound box 20. The arms 2i have their rear ends formed with clamp portions 22 provided with clamp screws. 23 by which the arms may be clamped as stated. Each arm 2! is formed from a pair of telescoping sections 2 l and 2l which may be locked in adjusted positions by the set screws 24.

A bridge 25 is mounted across the outer ends. of the arms2l, and more specifically, across the outer ends of the sections 2 I A stud 26 is turnably mounted on the bridge 25. Follower means is mounted on this stud 26 and includes brush bristles 21 for engaging the grooves of the standard record i2.

Thestud 28 is turnably mounted on the bridge 25 by turnably engaging through the bridge and being held against shifting by flanges 28 fixedly mounted on the stud and located adjacent the front and back faces of the bridge. A spiral spring 29 has its inner end attached to the stud 26 and coils about the stud and has its outer end attached to a pin 30 mounted on the bridge 25. An arm 3| is turnably mounted on'the stud .26.

A disc 32 has a square opening and engages a square section 33 formed upon the outer .portion of the stud 26. Thus the disc 32 is nonrotatively'mounted on the stud. 'A pin. projects from the arm 3| and engages one of sevcollar 38 on the stud 26 prevents the arm 3| from sliding inwards.

The bottom portion of the arm 3| is provided with a socket 39 supporting the base 4'0 of a brush having said bristles 21. A screw 4| is mounted on the socket 39 and clamps the base 40 in fixed adjusted positions.

The operation of the device is as follows:

The stylus of the sound box 23 is rested on the edge portion of the new blank record IS. The bristles 21 engage the groove of the standard record l2. The turntable II is caused to rotate and one sings or speaks into the horn l4 so that the sound sensitive recording stylus means grooves the new record l3 and simultaneously cuts a recording thereon.

The bristles 21 may be properly engaged with the groove of the record I2 by loosening the screw 4| and slightly extending or retracting the base 43 of the said bristles 27. Moreover, the disc 32 may be moved laterally to disengage the pin 34 from the opening 35 and then the pin 34 may be re-engaged in a different one of the openings 35 which changes the turning urge of the spring 29 upon the arm 3| when the bristles 21 engage the groove of the record l2.

In Fig. 7 a modified form of the invention has been disclosed which distinguishes from the prior form in the fact that a cylindrical projection 45 from the head 3! turnably supports an auxiliary arm 3|. This auxiliary arm 3| is provided with a socket portion 39' supporting the base til of an auxiliary brush having bristles 27. A set screw 4| engages through this socket for holding the base 43 in adjusted positions so that said auxiliary brush bristles may engage the groove of the record l2 at a point adjacent bristles 27. A stud 46 having a central hexagon portion i! and right and left hand threaded end portions threadedly engages the arms 3| and 3|. Thus these arms 3| and 3| will be caused to move in unison. When desired the stud 46 may be turned to disconnect the arms 3| and 3| so that the arm 3i may be removed.

In other respects this form of the invention is similar to the previous form and like parts are indicated by like reference numerals.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. In a device for guiding a phonograph sound box across the face of a new record blank from a standard record, a pair of arms extending from said sound box, means clamping the inner ends of said arms in position on said sound box, a bridge between the outer ends of said arms, a stud turnably mounted on said bridge, a follower arm rotatively mounted on said stud and including brush bristles for engaging the grooves of said standard record, means for holding said arm in desired turned positions on said stud, and resilient means for turning said stud to cause said arm to be similarly turned to engage said bristles with the groove of said standard record, said arms being constructed of telescopically engaged sections with means for holding the sections in desired adjusted positions for controlling 4 the spacing of said brush bristles relative to said sound box.

2. In a device for guiding a phonograph sound box across the face of a new record blank from a standard record, a pair of arms extending from said sound box, means clamping the inner ends of said arms in position on said sound box, a bridge between the outer ends of said arms, a stud turnably mounted on said bridge, a follower arm rotatively mounted on said stud and including brush bristles for engaging the grooves of said standard record, resilient means for turning said stud to cause said arm to be similarly turned to engage said bristles with the groove of said standard record, and means for varying the action of said resilient means on said arm, said varying means comprising a collar on said stud adjacent one side of said arm, a disc slidably but non-rotatively mounted on said arm adjacent the other side of said arm, a pin on said disc selectively engageable with one of a plurality of complementary openings formed in said arm, and means urging said arm and disc against said collar to retain said pin in an engaged position with one of said openings.

3. In a device for guiding a phonograph sound box across the face of a new record blank from a standard record, a pair of arms extending from said sound box, means clamping the inner ends of said arms in position on said sound box, a bridge between the outer ends of said arms, a stud turnably mounted on said bridge, a follower arm rotatively mounted on said stud and in' cluding brush bristles for engaging the grooves of said standard record, resilient means for turning said stud to cause said arm to be similarly turned to engage said bristles with the groove of said standard record, and means for varying the action of said resilient means on said arm, said varying means comprising a collar on said stud adjacent one side of said arm, a disc slidably but non-rotatively mounted on said arm adjacent the other side of said arm, a pin on said disc selectively engageable with one of a plurality of complementary openings formed in said arm, and means urging said arm and disc against said collar to retain said pin in an engaged position with one of said openings, said latter means, comprising a head formed on said stud spaced from said disc, and an expansion spring mounted on said stud and operating between said head and disc.

4. In a device for guiding a phonograph sound box across the face ofa new record blank from a standard record, a bridge ,plate supported on the sound box in a position spaced from one side thereof, a stud turnably mounted on said bridge plate and having a free end projecting laterally therefrom, a follower arm mounted on said stud and having brush bristles for engaging the grooves of the standard record, resilient means for turning said stud relative to said plate to cause said bristles to engage the grooves of the standard record, said arm being rotative and slidable on said stud, a collar formed on said stud on one side of said arm, a disc slidably but nonrotatively mounted on said stud on the other side of said arm, releasable means interconnecting said disc and said arm for retaining said arm in various rotative positions on said stud to vary the action of said resilient means in urging said bristles into contact with the grooves of the standard record.

5. In a device for guiding a phonograph sound box across the face of a new record blank from a standard record, a bridge plate supported on the sound box in a position spaced from one side thereof, a stud turnably mounted on said bridge plate and having a free end projecting laterally therefrom, a follower arm mounted on said stud the action of said resilient means in urging said bristles into contact with the grooves of the standard record, said releasable means comprising a pin extending laterally from saiddisc toward said arm, said arm being formed with a plurality of openings arranged in a circle concentric with said stud, said pin being engaged with one of said openings, and resilient means on said stud urging said disc into contact with said arm, and said arm into contact with said collar to retain said pin in engagement with the opening with which it is engaged.

JOSEPH LAPIR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PA'I'E'N'TS Number Name Date 1,269,607 Ivatts June 18, 1918 2,005,588 Mallina June 18, 1935 o FOREIGN PATENTS,

1 N umber. Country Date 681,023 France May 8,1930