US1315974A - Planograpm co - Google Patents

Description

B. LEONOWlCZ.

GRAMOPHONE.

APPLICATION FILED MAR. 21, 1918. 1 ,315 ,974. Patented Sept. 16, 1919.

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INVENTOR zinnnzhznafiaauon g BY 042M ATTORNEY 'mi: COLUMBIA PLANOGRAPII c0" WASHINGTON, n. c.

B. LEONOWICZ.

GRAMOPHONL APPLICATION FILED MAR, 21. 191a.

Patented Sept. 16, 1919.

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INVENTOR fi/oildP/aWJtOZOW s; BY fica/a ATTORNEY flu: CHIJIMHH I'LANOHRAMI Cm, WASHINGTON, II- c.

B. LEONOWICZ.

GRAMOPHONE.

APPLICATION FILED MAR. 21. ms.

Patented Sept. 16, 1919.

5 SHEETSSHEET 5.

INVENTOR .Brmz zsZaW Lemmy lg ATTORNEY a stylus whereby and particularly to types of the instruments BRONISLAW LEONOWICZ, 0F JERSEY CITY, NEW JERSEY.

GRAMOPHONE.

Specification of Letters Patent.

Application filed March 21, 1918. Serial No. 223,736.

To all whom it may concern:

Be it known that I, BRONISLAW LEoNowicz, a citizen of Poland, residing at Jersey City, county of Hudson, and State of New Jersey, have invented certain new and useful Improvements in Gramophones, of which the following is a specification.

This invention relates to improvements in sound re-producing instruments wherein a record, in the form of a grooved disk or circular plate, is rotated in connection with sounds are re-produced,

known as phonographs, graphophones, etc.

The principal object of the invention is to provide a mechanism which can be readily attached to a phonograph of ordinary type and which automatically, lowers the record at the end of the groove and conveys the sound box andstylus to their initial position.

A. further object is to provide a mechanism which will operate upon records of different areas and which will automatically stop the instrument upon the termination of the playing or reproduction thereof.

These and other like objects are attained by the novel construction and combination of parts, instrumentalities and devices herein described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is a top plan view showing an instrument made in accordance with the invention, parts being broken away in order to disclose the interior construction.

Fig. 2 is a side elevational view of the same, parts also being broken away for a like purpose.

Fig. 3 is a fragmentary vertical sectional 'view taken on line 33 of Fig. 1.

Fig. 4 is a fragmentary sectional view and plan taken on line 44 of Fig. 8.

F 5 is a fragmentary top plan view, similar to Fig. 1, but showing the parts in another position.

Fig. 6 is a plan view showing the parts in position as at the commencement of a record.

' ig. 7 is a partial side elevational view of the same.

Fig. 8 is a fragmentary rear view looking on line 3-8 of Fig. 31.. r

Fig. 9 is a fragmentary elevational view showing certain of the parts in one position, looking on line 99 of Fig. l, and

Fig. 10, is a similar view showing the same parts in another position, the View being taken substantially on line 10-10 of Fig. 5.

Fig. 11, is a view showing details of co11- struction and their respective cooperating parts and positions, and

Fig. 12 is a detail view of the detent release.

The invention includes the usual rectangular casing comprised of a base 20, from which rise the vertical walls 21, engaged at their upper ends with the cover plate 22, over which is mounted a turntable 23, on which the record disks 25 are mounted in the usual manner.

At one corner on the cover 22 is secured an annular bracket 26, in which is rotatably mounted the vertical element 28 of the tone-arm 30, directly connected by the tubular elbow 29, with the vertical portion.

Suspended loy rods 32, secured in the cover 22 are horizontally disposed mechanism carrying plates, respectively 33 and 34, in which is vertically journaled the turntable spindle 35, the reduced end 36 of which passes through the turn-table and disk thereon, so that the same is centered and held in operative position. The lower end of the spindle 35 is provided with teeth 38 in the manner of a spur pinion and meshing therewith is a driving gear 39, secured to the bottom of the revolulole cylindrical casing 41, containing a spirally coiled flat spring (not shown) such as are used for driving clocks. The upper end of the spindle 40, on which the casing 41 rotates, has secured to it a crown wheel 44, mesh-. ing with the teeth of a pinion 45 fixed upon a horizontal shaft 46, the same extending outwardly through the walls of a.casing 21. where it is provided with a crank 47 having a knob 48 by which rotary motion is communicated to the spindle 40, when it is desired to increase the tension of the driving spring.

Fixed at the lower end of the spindle 35 is a spur gear 49, meshing with a pinion '50, mounted upon a spindle journaleld vertically Patented Sept. 16, 1919. 1

within the brackets 33 and 341, the spindle actuating a form of centrifugal governor or regulator, shown in Fig. 3, comprised of spring elements 51, upon which are Secured weights 52, the arrangement being of eommon type, the governor, when running at a high rate of speed, raising a disk or plate 53, on the upper side of which rests a friction pad carried by the spring arm 55, the tension of which may be adjusted by rotating the rod and knob 56.

Arms 60 and 61, extend outwardly from the plates 33 and 341 respectively, and have journaled in them a spindle 62 driven by a pinion 63 meshing with a driving gear 39, the spindle having at its upper end a spur gear 65, meshing with a mating gear 66 rotatably mounted in a tubular bracket 67, at the extreme front end of the arm 60.

Fixed upon the face of the gear 66 are four radially; disposed arms 68, positioned to clear the face of the gear 65, when rotated thereover.

Secured -to the cylindrical bracket 67 is an arm 70, reduced in width at its front which points toward the axial center of the spindle 36. .Pivoted on a pin 71 set axially in the top of the fixed bracket 67, is another arm 72, near the outer beveled end of which is fixed a transverse pin 73, and hingedly engaged below the pivot arm 72, is a leaf plate 7 4, pressed normally downward by the flat spring 75.

A clip 77 is provided for limiting the movement of the hinged leaf plate 7 1, which plate has formed at its extreme end a downturned beveled edged lug 76, adapted to contact with one of the arms 68, and carried by said arm completely around the circular path of its travel until the beveled edge has made contact with the fixed arm 70, which releases the hinged plate 74, and allows it to pass over the arm 70, the function of which will be more fully described later on.

Pivotally engaged on the downturned end 78, of the arm 61 is a bent lever 80, the lever extending upwardly and rearwardly to a point 81 substantially level with the circuitous path of the arm 72.

vAn arm .83 is also rigidly engaged with the lower side of the arm 61, the same extending upward and formed with a rectangular tube or eye 8%, serving as a guide for a bar-85, having a recess 86, near its front end, for the lever 80, which is pressed thereagainst by a fiat spring 88, as best shown in Fig. 4:.

The opposite or rear end of the bar 85 is pifvotally'enga'ged at 89 with a downwardly extending lever 90, formed with an angular outwardly extending portion 91, and pivoted at ,92, to one of the arms 94: of a U shaped bail, the rear of the loop 95, being positioned slightly above the level of the upper plate 33, and has joined with it the other loop arm 96, both of the arms extending to a point slightly in advance of the axial plane of the spindle 36.

Both of these arms are pivoted near the rear connecting element 95, upon brackets 97, secured to the bracket plate in such manner that the arms are free to move slightly up and down, and engaged by these arms is a yoke element having ends downturned at their extremities 100, and an enlarged center 101, containing an opening through which the spindle 36 passes, while set in the spindle is a stop or limit pin 102. preventing an excess upward movement of the yoke.

Formed with the end of the arm 91 is a depending element 1041-, curved at its extremities to form a loop 105, in which is slidably engaged an arm 108, of a bell-crank lever 109, pivoted at 1.10, upon a bar 111, having fixed at its outer extending end a spring 114;, the other end of which is connected with the lever so as to hold it in an operative position, limited by the stop pin 112.

The upper end of the bar 111 is fixed with a bracket 115 mounted on the upper bracket plate 33 while an angularly extending end 117 of the bell-crank arm 109 carries at its extremity a rubber or like friction roller 118 adapted to impinge against the periphery of the disk 23, under certain conditions which will hereinafter be fully explained. the arm 109 passing upward through a slot 119 in the cover 22. 7

A T shaped detent 120 is pivoted to the downwardly extending portion of the bracket 115, the same being held in a normally fixed position by a spring (not shown) and which is retractable, due to the hooked end 121, engaging with the link 122. from which extends an arm 123, pivoted on a projection of the bracket 115.

This detent is released in the following manner.

Secured to the vertical portion 28 of the tone-arm 30 immediately below the elbow 29 is a band carrying a clip bracket 126 in which is secured by the screw 127, a rod 130 having an offset portion 131, operating in an arcuate slot 132, formed through the fixed cover 22 so as to permit the rod to turn with the tone-arm, the lower end 133 of the rod being in alinement with the upper portion.

Pivotally engaged at the end 133 is an arm135, formed at its opposite end with an offset projection 136. having a downturned angular toe 137, which, as the tone-arm is rotated, is caused to contact with the lever 123, and through it operate the detent 120 so as to permit the friction roller 118 to come into contact with the periphery of the disk 23, acting as a brake.

Affixed to the outer free end of the tonearm, on the lower side thereof, is a bar 1 10 in the outer end of which is an adjusting screw 141, the extreme end of the arm be ing downturned, forming an element142 in which is engaged a holder 143 carrying a brush 144, closely adjacent to the needle 145 engaged in the sound box l46,the brush being normally held in a raised position due to the pull of the spring 148. Thus means are provided whereby the record plate is kept clear and free from dust, rising from wear or other causes, producing a clear full tone. a

Extending outwardlyto one side from over the top of the cover 22 is a handle 150 having a downturned spindle 151, passing through the metallic bushing 152, affixed in the cover 22, the lower end of the spindle being bent inwardly andtoward the axis of the main spindle 36, its extreme point 154, being engageable with the arm 91, by means of which the bail elements 94, and 96 are operated. y

A stud 156, having a head 157, is fixed within the interior of the casing 21, and

encircling the stud is a coiled torsional spring 158, having an extending arm 159, pressing upon the extending end 154, normally maintains the bail in a lowered position.

Fixedly engaged with the turntable 23 is a sleeve 160 fitted to neatly engage with the upper portion 36 of the driving spindle and provided at its 161, engaging with the projecting pin 102 set in the spindle, the lower end of the sleeve resting upon a washer 164, encircling the spindle 36 and in turn resting upon the upper surface of the yoke 101. Thus as the yoke is operated through the bail upon the actuation of the extending crank handle 150, the turn-table is raised so that the needle 145 may engage with the record disk when in normal operation.

l Vhen however the needle or stylus enters the helical groove 165 formed in the record and from that be transferred to the circular groove 166, the arm 135, attached to the tone-arm or horn, will have actuated the detent which, in addition to permitting the brake roller 118 to contact with the turntable 23, also allows the turn-table 23, together with the yoke andfork, upon which it is supported, to drop.

in operation, the main spring by which power is supplied to the apparatus is wound by rotating the spindle 46, through the extending crank knob 48. A record disk is then placed upon the turntable, the extending handle 150 is drawn forward, as indicated by the arrow in Fig. 6, moving the extending arm 91 toward the center of the machine, thereby raising the bail, yoke and turn-table. This operation simultaneously withdraws the roller 118 from contact with the periphery of the turn-table 23 and progages the arm 135,

lower end with slots jects the rod 85 forward until the recess 86 formed in it engages with the lever 80,

which being pressed into the recess by the spring 88, maintains the record and turntable in a raised position and the parts in condition to operate. The stylus 145 having been properly positioned at the coinmencement of the record, the same is played in the usual manner.

when the stylus enters the circular groove 166, at the center of the record, the eXtending arm 135, attached to the tone arm engages with the pivoted arm 72am carries the hinged arm 74 over to the other side of the fixed arm 70, where it is forced by the spring 75 into a position where one of the rotating arms 68, caused to be rotated, due to the gearing, and which becoming engaged thereby, rotates the arms 72 and 74, first causing the pin 73, to make contact with the extending lever 81, depressing the same, thereby releasing the rod 85, which, due to the weight of the turn-table record, yoke, and engaged parts, permit the record to drop to its lowest position out of contact with the stylus.

The arm 72 is further rotated by means of the hinged element 74, until the pin enand carries the tone arm 1nto normal position with reference to the outer groove in the record.

Upon the further movement of the arm 72, it makes contact with the arm 123, with drawing the detent 120, so that, due to the pull of the springs 114, the friction roller 118 is pressed firmly against the periphery of the turntable causing it to cease rotating.

The arm 135, still engaged with the rotating arm 72, due to its connection with the rotatable portion of the tone arm, carries the tone arm outward so that the stylus is in position to be engaged with the outer groove of the record when the extending handle 150 is again operated.

From the foregoing it will be seen that the first step is to lower the record, second to bring the stylus into position for engagement with the outer groove in the same or a substitute record, and finally to cause cessations of rotation of the turn-table.

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

1. In a phonograph having a rotatable turn-table and a tone arm, means for raising said turn-table, means for locking said turntable in a raised position, a gear train and means for actuation thereof, a plurality of radial arms rotated by said gear train, a hinged lever, said lever being engageable by said arms, means operated by the movement of said tone arm for engz'tging or disengaging said hinged lever, and means operated thereby permittin said turn-table to be lowered,

2. In a phonograph, the combination with a rotary turn-table, a source of power and a tone arm, of means for raising said turntable, means for locking said turn-table in a raised position, a friction brake roller, means for engaging said friction brake roller with the periphery of said turn-table when in a lowered position, and means operable by the movement of said tone arm for releasing the holding means of said turntable and for applying said braking roller.

3. In a phonograph, the combination with a pair of fixed plates, a motor operatively engaged therebetween, a driving spindle operated by said motor, a turn-table mounted on said driving spindle, a hinged bail pivoted on one-of said plates, a yoke carried at the free end of said bail, a sleeve formed with said turn-table, said sleeve having a pair of opposed slots and fitted to engagewith said spindle upon said yoke, a lever for ope 'ating said bail whereby said turn-table is reaised, means for locking said turn-table in a raised position, means carried by the tone arm for releasing said locking means whereby said tone arm is moved into position relative to the record disk and said turntable caused to be lowered, and means for causing cessation of rotation of said turntable when in a lowered position.

4. In a phonograph having a vertically adjustable turn-table and means for rotation thereof, of a train of gears actuated by said means of rotation, a plurality of radial arms arranged upon the face of the outermost of the gears of said train, an arm pivoted to rotate freely thereover on the axis of the mentioned gear, a lever hingedly engaged upon the lower side of said arm, said lever being engageable by any of the mentioned radial arms of said gear, a rigid arm directed toward the axis of said turn-table, said rigid arm being adapted to engage with a portion of said lever, means for normally permitting said lever to pass over said arm, a rotatable element secured to said tone arm so as to rotate therewith, a lever hingedly engaged therewith, said lever having an end adapted to engage with the first named lever, whereby it may be engaged with any of said radial arms, means engageable by the further rotation of said lever for permitting the depression of said turn-table, a braking means for said turn-table, means operalillc by said arm for releasing said braking means so as to engage with the periphery of said turn-table, and means for resetting said tone armin its initial position.

In testimony whereof I have afiiXed my signature.

BRONISLAW LEoNowioz.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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