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Aug. 30, 1938. c. HUENLICH 2,128,646 BRAKINGv AND EJECTING MECHANISM Filed April 1, 1937 N. . , - lNvEN-ro‘R I Charles Huenllch 2 ai, 1 TTORNEY 2,128,646 Patented Aug. 30, 1938 UNITED STATES PATENT oFFlcE 2,128,646 BRAKING AND‘ EJECTING MECHANISM vCharles Huenlich, Bloomfield, N. J., assignor'to Thomas A. Edison, Incorporated, West Orange, N. J., a corporation of New Jersey ApplicationApril 1, 1937, Serial No. 134,292 (Cl- 82-1.1) This invention relates to machines for shaving ing drawing forming part of the specification and in Which sound records, and more particularly to the stop 8 Claims. ping and ejecting of the record after the com pletion of the shaving operation. 5 Sound record cylinders are made of Wax-like material having a surface upon which a sound track has been orv may be recorded. When such records are used in connection with business phonographs, it is customary to resurface the 10 outer portion bearing the sound track. Such a cylinder is commonly referred to as a “used” rec ord, but it is also the practice to provide a new cylinder with a smooth surface to be recorded upon. Therefore, the term “record” as used 15 herein contemplates a wax or other tablet hav ing a surface` either adapted to receive and bear or already bearing a sound track. ‘ The resurfacing operation requires a shavingl knife mounted on a carriage and adapted to 20 traverse a rotatably mounted record cylinder and to be held in operative relation with respect thereto. The cylinder is supported on a vcylin drical rotatable mandrel, usually motor driven, and the shaving knife is set-to take a cut of d-e sired depth as the cylinder is rotated. To ex 2 Ol pedite the shaving operation the cylinder is ro tated at relatively high speed, i. e., approximately 1700 revolutions per minute and rotating at that speed develops a substantial momentum. When 30 35 the shaving knife has traversed the record and the motor is shut off this momentum keeps the cylinder rotating for an appreciable time. It is, of course, not approved practice to effect the ejection of the record while rotating so that it therefore becomes necessary for the person per forming the shaving' operation to waituntil the record has come to substantially a state of rest with consequent loss of time. It is an object of the vpresent invention to provide an improved construction for braking a 40 record support and for detaching a record there from. Another object is to provide a simplified brak ing means for expeditiously overcoming the mo mentum of the cylinder at the completion of the 45 shaving operation and in advance of its ejection. Another object of the invention is the provision o-f ejecting means which is associated with the braking means in such timedv relation with re spect to the braking action that the ejection of the cylinder is initiated yimmediately upon the >stopping of the rotation thereof. Another object is providing a construction which performs the braking and ejecting op-era 55 tions by the single manipulation of a suitable member co-ntrolling these operations. Other objects and features of the invention will more fully appear from the following de 60 scription and append-ed claims. The invention is illustrated in the accompany Figure l is a fragmentary plan view of 'a con ventional form of a record shaving machine, to which my invention has been applied; Figure la is a diagrammatical view of the elec tric drive 'motor` and the controlling 'circuit thereof. ' Figure 2 is a cross `sectional view taken sub stantially along the line 2-2 of Figure 1; and- 10 Figure 3 is a fragmentary elevational view taken along the line 3-3 of Figure 1. Referring to Figure l of the accompanying drawing, a well known form of shaving machine is conventionally illustrated, the same comprising a base’plate l supported by the top portion of a cabinet C which is partly shown in Figures 1 and 2. Projecting upwardly from plate I vare left and right-hand end standards 2 and 3, respec tively; also left-hand standard 4 which serves as 20 a bearing for the shaft 5 of the mandrel 6. The standard 4 is provided with an oversized hole 4’ to accommodate the shaft 5, and to prevent dis placement of said shaft when the gate 9 (later described) is opened, a collar l2 is secured to said 25 ' shaft at a point adjacent to the left side of said standard. ' _ The shaft 5 is supported at its left-hand end by a conically pointed stud 1 adapted to register with a recess 5’ of the shaft 5, thus providing a 30 thrust bearing for said shaft end. The right hand end of the shaft 5 is similarly journalled by means of a conical stud 8 engaging with recess 5" in said shaft. However, the conical stud 8 is not secured in a stationary standard but is 35 mounted in a swinging end-gate 9 pivoted at I8 to a boss 3’ provided on the standard 3. The gate 9 is closed, as illustrated in Figure l, by a clock wise rotation about its pivot until its forward extremity impinges against the right-hand ex 40 tremity of a guide-rail 21. To retain the gate 9 in closed position there is provided a latch member 9' which is pivotally secured by means of its shank to a vertical post on plate l and is adapted to swivel in front of the guide rail 21. As this arrangement is well known in the art, as for eX 45 ample, being fully disclosed in Patent No. 465,972, granted December 29, 1891, on an application of Thomas A. Edison, it is only conventionally illus trated herein. Suffice it to say that when the gate 9 is moved to.closed position, the mandrel 6 is wholly supported by the studs 1 and 8, the latter providing axial alignmentk and also pre venting appreciable end play of the shaft 5. In this position the mandrel 6 is in'true parallel re 55 lation with the guide-rail 21 and thus the record e may be rotated for resurfacing. 'I'he rotation of the shaft 5 is accomplished by means of a motor M, diagrammatically shown in Figure la, having a belt I9 passing over a pulley 2 2,128,646 26 on said shaft. For controlling the motor cir cuit I5 there is provided a switch I6, the switch ing elements of which are controlled by push but tons I'I-and I8 to open and'close the circuit I5, thus stopping and starting the motor, respective 1y. ally mounted upon the stud 3'! and adapted to be rocked clockwise with the movement of the oper ating arm 35. The brake> member 45 is adjacent to the standard 4, and its upper extremity is curved to form a right angle portion 4D’ having a recess w in the end thereof adapted to receive a friction member or brake-shoe 46. The brake-shoe 46 is adjustably mounted in a projection- 22 »formed arranged in longitudinal alignment with the end A knife bar 25 carries a knife 26, said bar being upon an arm 2l of a tool carriage 2D. This car riage is slidably and rotatably mounted on a car riage rod 23 disposed behind and in parallel rela tion with the mandrel 6, said rod being terminal ly secured to the standards 2 and 3. The arm 2| of the carriage 20 is semi-circular in side eleva 15 tion and is provided with a weight or hand piece 24. formed integrally therewith. The under sur face of said hand piece 24 is smooth and normally is in contact with the top surface of the guide rail 121. . During the shavingoperationthe carriage arm 20 2| is moved longitudinally of the record A from right to left by means of a feed screw not shown but well understood in the art. A pulley 3|, se cured to the shaft 5 by means of avbelt 30, ro 25 tates _the feed screw, which when so rotated, may be engaged by a feed nut 32 carried by an exten sion 33 of the carriage 20. It will be understood that the feed nut is arranged to engage the feed screw only when the arm 2I occupies its normal 30 resting Nposition onthe guide-rail 21 and to dis engage the same when said arm is tilted upward ly. The knife bar 25 may be of any approved type and when the arm 2l is resting upon the guide 3.5 rail 2l, the knife will engage the surface of the record A to the desired depth. As the knife'bar mounting is well understood in the art and forms no part of the present invention it is unnecessary to describe the same in detail. 40 The apparatus thus far described is wholly con ventional and forms a typical construction to which the present invention maybe applied. As previously stated, my invention contemplates a combined braking and` ejecting mechanism for ñrst overcoming the angular momentum of and stopping the mandrel and, as incidental thereto, ejecting the record therefrom, the same being ac complished by the manipulation of a single mem ber. 50 Located at the left hand side ofthe base plate i is a combined braking. and ejecting arm 35 having a hub >36 secured-by a set screw 36’ to a stud pin 31 supported at one yend by the rail. 27 and at the other end in a'bearing formed in the 55 standard-4. An extension arm 38, formed inte grally with the hub 36, is provided Vat its upper extremity with a pivoted ejecting member 39, nor mally spaced a short distance from the left end of the record A but longitudinally `aligned there 60 with .so as to impinge thereagainst when moved rightwardly to eject the record. To hold the ejecting member 39 in its normal position the arm 35 and thus arm 38 is biased by Vmeans of a torsion spring 4I coiled about Vthehub 36 and 65 terminally secured to the arm 35 and to the base plate I. By‘this'arrangement the spring 4I -nor mally retains theV arm 35 resting against the base plate I _' (see Figure .3). A lug 42 projecting from the hub 36, when brought intocontact with the adjacent `edgeof said base plate, limits the for ward movement >of said `arm when moved by the operator in a clockwise direction. . For overcoming the angular momentum of the mandrel 6 previous to ejecting the record, I pro 75, vide a yielding brake member 45, which is pivot 6’ of the mandrel 6, and is adapted to be moved into engagement therewith when the brake mem ber Y45 is moved in a clockwise direction. To yieldingly mount the brake member 45, there is provided upon said member a laterally extending pin 47 adapted to coact with a similarly projecting pin 48 extending from the side of the arm 38 of 15 the >hub member 36. These pins are substantially the same radial distance from the stud pin 31 and are adapted to be held normally in contact with each other by means of a torsion 'spring 49 wound about lthe hub 36 and having its ends oppositely 20 resting against said pins, as clearly seen in Figures 2 and 3. In this manner the brake member 45 is resiliently connected to the arm 35, and thus movement of said arm will impart a similar move ment to the brake member 45. However, it will be 25 understood that during the movement of the arm 35thebrake member 45 will, by virtue of its brake shoe 46, contact with the end 6’ of the mandrel 6 prior to the member 39'contacting the adjacent endof the record A, but continued forward move 30 ment of arm 38 and member 39 is permitted by the resilient connection between arm 35 and member 45. Upon such occurrence, the end of the tor sional spring 49 abutting against the pin 48 of the arm 38 will be carried forward by said pin, and as 35 a result greater torsional strain will be imparted to the member 45 to thereby cause the brake-shoe 46 to apply greater friction upon the end 6’ of the mandrel 6. . Í l ` The function of the mechanism just described has been previously explained; however, since the utility of said mechanism is subject to a sequence of operations to accomplish the main purpose of the machine, a review of certain functions and operations will now be in order. Assuming a record A, on the mandrel 6, has just been shaved and that said mandrel is still being rotated by the motor M but that it is now desired to remove said record from the machine. The first step in such operation will be to cause a stoppage of the mandrel driving means by press ing the button I 'I of the switch I 6 to thereby open the circuit I5 which operates the motor M._ How ever, because of the high velocity to which the r0 tary parts, including the record A, have been sub jected, it will be understood that normally rota 45 55 tion thereof will continue for an appreciable time after stopping the motor and that this would ordi narily delay the subsequent ejecting of the record. However, with my present invention, the operator 60 may immediately after the manipulation of switch ` I6, and while the record is still rotating at high speed-proceed with the operation required to ef fect ejection-thereof by moving the arm 35 clock wise about its pivot stud 3'I. The initial move ment of the arm 35 will cause the arm 38 to carry the ejecting member 39 toward the end of the record A, but before said member 39 contacts therewith,` the shoe 46 of the brake member 45, which is normally closer tothe end 6’ of the man drel 6, will have'come into frictional engagement with said mandrel end. Upon further movement 70 of the arm 35 increased friction will be applied upon the end of the mandrel due to the torsional effect of the spring-49, which _is now being con 75 3 2,128,646 strained by the pin 48 as arm 38 is moved for wardly by the arm 35. At this stage in the move ment of the arm 35, the ejecting member 39 con tacts the record, but incidentally the frictional contact of the brake-shoe ¿l5 upon the end of the mandrel will have become sufficiently 'great to overcome its momentum and stop the same, and thus further movement of said arm 35 will cause said ejecting member 39 to force the record out 10 wardly Without damage thereto. The lug ft2 limits the forward stroke of the ejecting member 39, .and said record when ejected will assume a position wherein its right-hand end will rest adjacent the end-gate Sl, as shown by the combination with a record support and means for rotating the same, o-f a brake member, an ejector member, a mounting for cooperatively positioning said members with respect to said support and a record carried thereby, means for applying said brake member to said support, and means for engaging said ejector member with the end of the record, said means functioning in. cidentally and in the sequence of the braking action preceding the ejecting action, whereby the 10 rotation of said record is substantially stopped before the ejection thereof. 4. In. a machine for shaving sound records, the combination with a record support and means for rotating the same, of a brake member, an ejector 15 dash and dot line in Figure l. To protect said end of the record from damage by too forcefuly member, a mounting for cooperatively position ejection against the end-gate 9, there is provided ing said members with respect to said support and a record carried thereby, said mounting com a yielding spring member 50. This member is se cured to and centrally of the gate 9 by means of prising an actuating lever positively connected to said ejector member and yieldingly connected 20 20 the screws 5I and extends downwardly as shown in dash. and dot lines in Figure 2. Ordinarily, the to said brake member, means for normally hold ejecting stroke of the member 35 is such as to ing said members in an, inoperative position, and move the end of the record in close proximity to means for moving said members into operative the spring member 5U but if the record has been position, said braking member being ñrst brought intof engagement and yieldingly held in contact 25 25 ejected forcefully, it will be yieldingly arrested by said member 50 without ill effects. , It is always preferable to eject a reco-rd before the end-gate -il is opened; however, as in the present invention, by applying a strong braking 30 action prior to the ejection action, no serious harm is done to the record if the end-gate should be opened immediately following the manipula tion of the switch I6. Upon the release of the arm 35 by the operator the spring 4i returns 35 the same to normal position and thus: restores the associated parts co-ntrolled by said arm to inoperative position. While the form of mechanism herein disclosed is admirably adapted to fulfill the` objects of the 40 invention, I do not wish tov confine myself to the same, `since the invention maybe embodied in various forms within the scope of they appended ' claims. 45 What is claimed is: 1. In a machine for shaving sound records, the combination with a record support and means for rotating the same, of a brake member, an ejector member, a mounting for cooperatively positioning said members with respect to said 50 support and a record carried thereby, an actuat ing lever for said members, and means for apply ing said brake member toI said support and said ejector member to the end of the record, said operations being incidental to the actuation of 55 said lever and in the sequence of the braking action preceding the ejecting action, whereby the rotation of said record is substantially stopped before the ejection thereof. . 2. In a machine for shaving sound records, the 60 combination with a record support and means for rotating the same, of a brake member including a shoe, an ejector member including a pivoted element, an actuating lever for said members, resilient means for connecting said members, and 65 means for applying said brake shoe to said sup port and said ejector element to the end of the record, said operations being incidental and ac complished by a. single manipulatio-nî of said lever, the braking action being in advance of the ejecting action but in closely timed sequence, 70 whereby the rotation of the record is stopped before the ejection thereof. l 3. In a machine for shaving sound records, the with said support during the advancement of said ejector member into Contact with said record, the braking power thus applied being sufficient to insure the substantial stoppage o-f the: rotation 30 of the record before the ejection thereof. 5. In a machine for shaving sound records, the combination of a record support, a motor for rotating said support, meansfor controlling said motor, and a braking'and ejecting mechanism comprising a brake member, an ejector member, 35 resilient means` connecting said members, an ac tuating lever, positive means' connecting said lever with said ejector member, a mounting for cooperatively positioning said members with re spect to said support and a record carried there 40 by, and means for normally holding said mem bers in inoperative position, said actuating lever, when operated upon the stoppage o-f said motor, effecting the application of a braking action to said support and record ejection. 45 6. In a machine. having a rotatable support for cylindrical records, means for rotating said support, ejecting means operable to` impart to a record when the same is operatively positioned on the support, movement longitudinally of the 50 support thereby to free the record from opera tive engagement with the support, and meansI actuated by said ejecting means for stopping the rotation of said support. 7. In a machine having a rotatable support 55 for cylindrical records, means for rotating said support, ejecting means operable to impart to a record when operatively positioned on the sup port, movement longitudinally of theI support thereby to free the record from operative en 60 gagement with the support, and a braking de vice effective to stop the rotation of said sup port upon the actuation of said ejecting means. 8. In a machine having a rotatable support for cylindrical records, means; for- rotating said 65 support, vejecting means operable to impart to a record when operatively positioned on said support, movement longitudinally of the support> thereby to free the record from the support, and' means for stopping the rotation of said support, said ejecting means and stopping means being interdependent in operation. _ CHARLES I-IUENLICI-I.