US1437959A - Graphophone stop mechanism - Google Patents

Graphophone stop mechanism Download PDF

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Publication number
US1437959A
US1437959A US531252A US53125222A US1437959A US 1437959 A US1437959 A US 1437959A US 531252 A US531252 A US 531252A US 53125222 A US53125222 A US 53125222A US 1437959 A US1437959 A US 1437959A
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US
United States
Prior art keywords
trip
arm
reproducer
brake
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US531252A
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English (en)
Inventor
Clifford C Brooks
Edwin O Klemm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KLEMM MANUFACTURING Co
Original Assignee
KLEMM Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US222636A external-priority patent/US1406608A/en
Priority to GB6538/19A priority Critical patent/GB124727A/en
Priority to FR498355A priority patent/FR498355A/fr
Application filed by KLEMM Manufacturing Co filed Critical KLEMM Manufacturing Co
Priority to US531252A priority patent/US1437959A/en
Application granted granted Critical
Publication of US1437959A publication Critical patent/US1437959A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/095—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record
    • G11B3/0952—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record using automatic means
    • G11B3/0955—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers for repeating a part of the record; for beginning or stopping at a desired point of the record using automatic means using mechanical means for detecting the end of the recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/22—Brakes other than speed-regulating brakes

Definitions

  • This invention is a division of our pending application for patent, Serial #222,636, filed March 15, 1918, and described as disclosing certain automatic'stopping and certain combined automatic stopping and repeating mechanisms for talking, machines.
  • the improvements set forth hereinafter, comprise primarily the stopping mechanism features of the machine ot'our previous ap plication.
  • said tripping mechanism controlling the operation of a brake which constitutes the stopping device for the turntable of the talking machine.
  • a primary object of this invention has been to produce a type of trippingand con trolling mechanisms for the stop orbrake device, which eliminates the placing of any load upon the tone arm and reproducer incident to thetripping operation, such a loadhaving the tendency of course to retard the movementofthe tonearm andrepr-oducer creating extra friction and wear of the reproducing stylus upon the sound grooves of the record,
  • Our present me'cha nism does not produ'ceany special increase of friction between the reproduce-r and 'the record, and the matter of eliminating wear or strain upon the sound grooves is of special importance in the art, being conducive to the reproductionof sound of thehig'hest purity of tone, int-lie operation of the talking machine.
  • the tripping mechanism employed by us is utilized for tripping into action certain moving means which are operated by a motor driven part of the machine, and said part performs the work of tripping the brake or-stop from a position in which" it is held released or. inactive, to cause the'bralre to beapplied to a suitable part of thednachine in such a manner as to'stop the rotation of the turntable for the 'usualpurpose of discontinu-
  • This invention involves the use of certain tripp ng mechanism operable ing sound reproduction.
  • This invention also involves certain disabling devices for throw ing out of action the automatic tripping features for our stopping mechanism enabling the stop or brake to be operated manually in what is the customary operation of manual stops.
  • FiguresQ to'6 are fragmentary plan views showing various positions of t heldriver, con
  • Figure 7 is a sectional view taken approxi- I mately on the 1i11 e:77 of Figure '5';
  • Figure 8 is aview of the'connections'intermediate the locking and detent control device and the "operation predeterminin'g device, the former being "shown 'partly' in section
  • Figure 9 is a perspective view of the lock ing and detentdevice for the"acljustable”trip showing clearly the lifting plate and its formation with'three inclinedfplanes;
  • FIG.10 is a detail: perspective View of I the" connector or lirikf 1 Throughout the following specification,
  • A denotes thejbase on" which are mounted the motor, record -table, and reproducer' arrn parts, after th reon:
  • the tone'arm E is" connected'by a'universal joint with the'base for which i I purpose a socket I is securedtofth base 1 and receives the ball or lowermost portion of the arm in such a way as to afford free upward and lateral movement of said arm.
  • the tone arm E and its sound box F with the reproducing stylus of the latter constitute the reproducer means of the talk ing machine and will be generally referred to as such hereinafter.
  • the driver 2 Suitably geared. with the motor, not shown, so as to be driven thereby, isthe driver 2 in the form of disk having projections 3 on its upper surface.
  • a connector e in the form of a link has a hook 5 atone end adapted to move into the path of the projections 3 and when engaged by a projection to be pulled lon itudinally by the driver 2.
  • the link a At its other end the link a has a downwardly bent projection 6 engaging in an opening 7 of an actuator G shown best in Figure 9, and possessing actuating functions respecting the link 4, the reproducer E and a trip member 8 carried by said reproducer.
  • the actuator G is comprised of a plate 9, see Figure 9, the upper portion of which is bent outwardly to provide an actuating cam 10 and a detent flange 11 between which parts is formed a notch 12. Owing to the provision of the notch '12 the actuator G in its relation to the trip 8 forms 'a locking member for the trip under certain conditions as will appear hereinafter.
  • the plate 9 is rigidly secured to a shaft 13 so as to rock with the latter-and the shaft 13 is mounted in suitable bearings in a U-shaped bracket 14 attached to the under side of the base A, see Figure 7. It will be evident that if the connector 1 is engaged at its hook 5 with the driver 2 the latter is adaptedto pull upon the actuator or locking member G and rock the shaft 13.
  • the actuator-G as seen best in Figures 7 and 9 has secured to it by a bolt 15, a lifting member 16 in the form of a plate which is bent to form three inclined planes or surfaces 16, 16 and 16.
  • the trip member 8 On the pivoted portion of the arm E is mounted the trip member 8 previously mentioned, the same having a friction ring 17 embracing the lower portion of the men ber E adjacent to the socket member 1.
  • the trip member 8 has a depending vertical. lifting arm 8, the lower extremity of which is rounded and arranged to engage normally with the inclined plane of the member L0 16. By such. engagement it becomes evident that a rocking of the shaft 13 and 'actu ator Gr thereby rocking the plate 16, will. result in a risino movement of the plane 16 aforesaid, thereoy correspondingly raising the arm-8 of the trip member 8.
  • the memher 8 being securely fastened to-the' arm E,
  • trip member 8 is susceptible of rotative movement relative to the reproducer E through the friction connection between the ring 17 and the part E, said ring; being virtually a continuation of the member 8. The purpose of this will be set forth hereinafter.
  • This controller designated 18 in Figure 1 is merely an arm formed with a lateral pointer or indicator 19 at its free outer end. At its inner end the controller 18 is curved to extend about two thirds the distance around the socket member 1, as shown at 18,
  • curved portion 18 sufiiciently engages the socket member 1 frictionally that tie controller 18 will be retained at any fixed adjustment obtained by manipulating said controller freely with the hand.
  • the extremity of the curved portion 18 terminating at the reproducer E is upturned to form a stop extension 20 and on said extension is adapted to be carried an auxiliary stop 21 in the form of a removable head.
  • an ad ust ment of the lever 25 may belhad rendering its brake shoe 24 ineffe( :tive and permitting free operation-0f the governor B, wherefore the motor of the machine may operate to table D.
  • a. spindle 29 is connected therewith. and is mounted in a Suitable bearing in the base A, said spindle having the knurled-knob 30 at its upper end for rotation purposes and the knob having associated therewith,
  • a pointer 31 adapted; to bemoved so as to point to one of various indicia upon a plate 32 attached tothe upper surface of the base A.
  • T he said indiciaa preferably cont prises the, word Stop, the word Continuous and numbers running from 1 to 8 inclusive, but we are not to be limited to this special range of numbering, whichl.correspends with the number of teeth primarily as provided upon the wheel 27.
  • the wheel 27 is turned to the left of the position of Figure 8 the notch 28 is opposite the operating projection 34 at the outer end I ofthe actuating bar 85, the opposite end of which bar has a depending arm 36 n the path of an upwardly extending arm 37 on the shaft 13.
  • the bar 35 is spring retracted, by a spring 38, and its projection 34 is adapted to engage the teeth of and turn the wheel 27 excepting only when the notch 28 is opposite said projection.
  • bar 35 is of course actuated each time a rocking movement is imparted to the shaft 13 and its functlon 1S to impart an morement of movement tothe wheel 27 as an 1ncident to a reproduction traversing 'movement of the reproducer E.
  • the bar35 is incapacitated to perform. its function when the notch 28 is oppositevthe'projection 34. this resulting in a, continuous operation of the motor and record reproductions by way of repetition ope "ations, as will -hemore clearly apparent onreference to the afore-.
  • a keeper 39 is'fastened to the upper surface of the base A and extends over the link connector 4 so as to prevent,
  • Thebar 35 is mounted to slide in suitable brackets 39 secured to.
  • Still another spring 4-2 is at tached to the base A near one end of the keeper 99 and is arranged so that T atla H certain portion of the movement of thelinkf I 4 said spring is pressed against and placed under abnormalytension so that at 'alater portion of the movement of the link 't this spring will co -act to' carrythe link-to its inoperative position depicted indotted lines v.
  • t-rol device H forthe governor B is provided whereby to vary thespeed of the 'niotor in playing different selections on the graphophone, this ilCtlOIl being well known and not forming any feature of this invention is-not described in detail.
  • 'A pin 49 H 1"00 -As seen in Figure 1 a conventional con extends up from the base intermediate-1 the ends of the link 4 and co-actsiwith-an 1 angular indentation 4 of said link by; havthe'link as seen best'in Figurelfii.”
  • the pin 49 limits the-lateral play'of the; link 4,: in;'.,'-" v I one direction.
  • the driver ,2 is of course stationary at this time and as a "result ofthe stated adjustij ment f; the" pl e 6 the ow r and 1f th trip arm 8 bowl on caused to ride up tie inclined plate 1b and has stopped just short the plane 16*.
  • Such positioning of the parts has therefore resulted in raising the tone nrm or reproducer E vertically and correspo ding elevation of the reproducing stylus respect to the table D and a record which may have been thereon; By being stopped in the uplifted position the reproducer E does not interfere in any way with the ready placing in position on the table D of a fresh record and the removal of a played record.
  • laziness grasp the indicator 18 and move the same so that the pointer 19 thereof assumes a position above the portion of the record at which the reproduction is desired to commence.
  • portion is at the beg .nning of the record its outermost groove, but the adjustability of the member 18 permits Oi selecting any commencement point desired.
  • the final action on the part of the operator is to actuate the operation predetermining device, by merely turning the knob or knurled handle 30 to set the pointer 31 properlyin relation to the indicating plate 32. If the pointer is moved opposite to the indication 3 the machine will stand adjusted for three reproductions of the record. The moment the handle 30 is turned in the manner stated the wheel 27 is correspondingly turned to disengage the brake shoe 24 from the disk 23 of the governor B and the parts begin to operate according to the movements depicted in Figure 5.
  • TlllS repeat action 1s merely incident to the parts going through the operations depicted in Figures 5 and 6 again, causing the pointer 31 to move-from a point opposite the numeral 2 of the plate 32 to a point'opposite the numeral 1.
  • the cycle described then again proceeds-and after the second reproduction a third follows after" the same manner.
  • the repeat mechanism may never be used, In other words,the achustment of the pointer 31 of the predeterminingdevice to bring it opposite the indication 1: by turning the knob 30,. will cause the reprodu er'to make one reproduction of the record'and stop automatically in an upraised position, the stop mechanism or. brake being-of course thereon the indicia actuated by the motor driven part consisting of the driver 2, and the load of operating said brake being in no way placed upon the tone arm and reproducer so as to create undue friction between the stylus oi" the reproducer and the record.
  • the operator may pick up the tone arm and carry it to the starting point on the record by hand.
  • the predetermining device used as a mere manip ulator to apply and release the brake as will now be described.
  • Figure l. of the drawings depicts at tat a plate secured to the base A and having lepeater oii. Said plate is slotted and its slot coincides with one formed in the base A.
  • a handle member d5 operates through the plate 44 and base and is connected to a lever 46 beneath the base. The inner end of the lever 16 is pivoted at 47 and its outer end is movable to a point behind the arm 37 or" the shaft 13. When so moved. it will be obvious that the actuator G is prevented from rocking movement toward the socket member 1 to carry the link 4; from the dotted line posi tion of Figure (3 wherein it is inactive, to the position of Figure 4: required for automatic operation of the stopping mechanism, Under these conditions the automatic operating means for the.
  • the handle 30 of the operation controlling device may be freely manipulated to turn the wheel 27 to and from positions in which the end 25 of the lever 25 enters the notch 28.
  • the flange 11 being formed with a con tacting edge inclined toward the notch 12 tends to facilitate rather than oppose movement of the tone arm, as the trip 8 approaches the notch 12.
  • This invention is an improvement on that disclosed in our patent No. 1,406,607, dated Feb. 14, 1922.
  • trip is adjustable relatively to the reproducing device, the said part being adapted to interlock with the trip for holding the trip stationary under certain conditions, when said trip becomes effective to act upon said part for the purpose stated.
  • a reproducing device comprising a tone arm, a turntable, a pivoted plate adjacent the tone arm, a trip frictionally attached to and turn ing with the tone arm and having a portion engaging with said pivoted plate, said pivoted plate being provided with a notch for receiving the trip, a motor driven part, a connector for connecting the motor driven part with said pivoted plate, the trip being movable in engagement with the pivoted plate so as to hold the latter in a position in which the connector is inactive, but the trip being adapted to enter the notch of the piv oted plate to render the connector active whereby movement of the motor driven part may be communicated to the connector, and a brake adapted to be operated by said connector fronrthe motor driven part.
  • a tone arm brake operating means comprising a 35 I producing means, but adapted tovbe shifted pair of normally disconnected members, one of which is pivoted to turn, transversely of the other, and one of which is shiftably connected with the tone arm, and means for operating the brake and controlling this engagement of said members.
  • a turntable, a brake therefor, and a tone arm associated with the turntable combined with means for releasably holding the brake in non-braking position, means for operating the holding means to release the brake and including a pair of relatively engageable members, one of which is shiftably attached to the tone arm, and instrumentalities adapted to be set into operation by movement of the brake for disengaging'the members of the pair from engagement with one another.
  • a tone arm a member having a normally fixed but shiftable connection with said arm, a brake for discontinuing.operation of the graphophone motor, means releasablyholding saidbrake in non-braking position, a second member riding normally on the first named member but having means of engagement therewith for holding same stationary while the tone arm is manually turnedto stopposition, and means carried by the second member for releasing the brake from the holding means.
  • stop control means normally moving with said sound re-v with respect thereto, movable means controlled by said control means for moving a member into the path of a motor actuated element, motor stop means,imeans for releasably holding same inoperative, said member being adapted to actuate said holding means to release the stop means when actuated in turn from the motor actuated element.
  • movable sound reproducing means adapted to be propelled from a sound record groove, a member normally moving therewith and having a frictional adjustment with respect thereto, a second movable member normally held from movement by hearing lightly against the first member, one of said members being provided with a cut-out portion adapted to be entered by the other of said members, whereby the second member is relieved from its bearing against the first member and permitted to move, motor stop means, and motor actuated-means for operating said motor stop means brought into operation by said move-v ment of the second movable member.
  • a turntable, movable sound reproducing means In automatic stop mechanism for graphophones, a turntable, movable sound reproducing means, a trip mounted thereon and having frictional adjustment in respect thereto, a plate plvoted on the machine base and adapted to be lightly. engaged at.
  • Intalking machine mechanism a tone arm, a member having anormally fixed but shiftable connection with said arm, abrake for discontinuing operation of the grapho-v phone motor, means releasably holding said brake in non-braking vposition, a second member riding normally on the first named the second member for releusingthe brake from the holding means.

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  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Braking Arrangements (AREA)
US531252A 1918-03-15 1922-01-23 Graphophone stop mechanism Expired - Lifetime US1437959A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB6538/19A GB124727A (en) 1918-03-15 1919-03-15 Improvements in and relating to Automatic Stopping & Repeating Means for Graphophones.
FR498355A FR498355A (fr) 1918-03-15 1919-03-21 Dispositif d'arret et de répétition pour graphophones
US531252A US1437959A (en) 1918-03-15 1922-01-23 Graphophone stop mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US222636A US1406608A (en) 1918-03-15 1918-03-15 Automatic stopping and repeating means for graphophones
US531252A US1437959A (en) 1918-03-15 1922-01-23 Graphophone stop mechanism

Publications (1)

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US1437959A true US1437959A (en) 1922-12-05

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Application Number Title Priority Date Filing Date
US531252A Expired - Lifetime US1437959A (en) 1918-03-15 1922-01-23 Graphophone stop mechanism

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US (1) US1437959A (fr)
FR (1) FR498355A (fr)
GB (1) GB124727A (fr)

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Publication number Publication date
GB124727A (en) 1919-12-24
FR498355A (fr) 1920-01-09

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