US1255564A - Automatic stop-adjuster. - Google Patents

Description

'mame vO. H. PADDUCK.

AUTOMATIC `STOP Auus.-

APPLICATION FILED AUG.2T, |914.

Peeeneee Feb. 5,1918.

WITNESSES "i" f2 /7 we Q o. H. PADDUCM.

AUTOMATIC STOP ADJUSTER. APPLICATION FHQED AUG.27, 19M.

2 SHEETS--SHEEIl 2.

' Lassiter.:

omviom) n. rannock, or motero. orne.

AUTOMATIC srcsnnusrsia.

y Specification of Letters latent.

Application-filed August 27, 19.14. Serial No. 858,872.

To all whom t may concern:

Be it known that I, ORMOND l-l. PADDOCK, a citizen of theUnited States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Automatic Stop-Adjuster; and I do hereby declare the following to be a full,V

clear, and exact description of the invention, such as will enable others skilled in theart to which it appertainsV to make and'use the same, reference being had to the .accom- `panying drawings, and to the charactersrof reference marked thereon, which .form a part of this specification.

My invention relates to automatic stop adjusters for causing rotatable tables of phonic reproducing instruments to stop at the terits travel over the record..

records. Y i

Theobjectof the invention is to .provide minus of the records carried thereby. The invention is particularly applicable to pho-` nographic instruments to cause the instruments to discontinue whenV the reproducing Vneedle hasv reached a certain point in its translation over the record. The inventiony is applicable tothe well known form of disk records and it is with its modifications applicable tothe `well rknown cylindrical a means which will locate an automatic stop so that it will be brought into operation when the reproducing needle has completed The invention Inay be contained in many forms of constructions usable vfor different purposes, all of which come within the purview of my claim hereinafter appended. To show the practicability of myinvention, l have selected one of such constructions as .an example and shall describe it hereinafter. The construction selected is illustrated in the `accompanying drawings.`

Figure 1 illustrates atop view of a phonographic instrument such as the well known Victrola, having attached thereto one of the forms of the automatic stop adjusters which embody my invention. Fig. 2 is a top view of the adjuster. Fig. 3 is a siderview of the coactingV indicating means. Fig. 4L is an end view and; Figs. 5 and 6 are opposite edge views of the adjuster. Fig. 7 illustrates'a record plate `of the type well `known in the art..

Referring to Fig. 1, l is the top of the casing containing the operative mechanism for driving theplate 2 andthe record disk 3. 4 is the reproducer supported on the acoustic .arm` 5 which is rotatably mounted 'by means of the bracket 6 on the top of the casing l. lt have shown the invention as applied to the well known Victrola stop mechanism 7 having the arm 8 pivoted on the frame or bracket 22 which is secured tothe plate l0 which is. secured in the top of the casing 1. The arm 9 is frictionally connected to the arm 11 and is also pivoted on the same axis therewith. The arm 8 freely l moves lon its pivotal connection. A. spring 12 connects t-he arms 8 and 9, the points of connection being in a line passing very near thev axis of the pivot of the ar1n`8 which yieldingly draws the 'arm 8 counter-clockwise and at the same time yieldingly draws the arm 9 clockwise. A recess 14 is formed in a boss 15. lThe arrn9 is providedwith a lug 16 adapted to enter the recess 1li and lock the arm 8 in position against the operaV tion of the spring 12 when the arm 8 iis turned clockwise. The' arm 8 is provided with a finger 17 which is adapted to frictionally engage with a iiange or rim located onthe table 2 when the arm 8 is released from the engaging lug 16. The spring l2 then` causes the arm 8V and the finger 17 to plate in the manner well known in the art.

The arm 11 is provided with fingers 18 and 19 and the acoustic tube 5 is provided with a downwardly extending pin 2O which may engage with'the. finger 18 ofthe arm 11, when the reproducer 4 is carried inward as it follows the phonic groove produced in the record plate. If the finger 18 is placed in position so that the pin 20 will move the arm l1 counter-clockwise, the arm il, which is frictionally connected with the arm 9, will move the'arm 9 to cause disengagement hetween the lug 16 and the arm 8, whereupon the arm 8 will rotate counter-clockwise by the action of the spring 12 and cause the ord by movement of the finger 19. The arm Patented Feb., 5, il9i8.

ai ribs.

l1 is placed in such position by placing the reproducer on the inner circular line of the record and` holding the ,reproducer .in position While .tllefineer 1.9 is .Operated .t0 P11111 vthe armll imposition such'that the finger 18 will be pressed against the pin 2Q. The

reproducer is then lifted andthe acoustic hollow arm 5 'together with the .reproducer is swung about the pivot of the acoustic arm 5 S0 as t0. brille the repreduer to .near .the periphery of the record disk where'the reproduc'er may be placed in the .outercircular groove ofthe record. The arm 8 is then rotated clockwiselto release fthe table ftop,

whereupon the table top will begin to rotate if ,connected with a source of power such i as awound spring, and the -reproducer will Yknown'in the art.

reproduce the record. As the reproducer travels along `the groove of the record it is ymoved toward4 the axis of the plate 2. When it arrives at the inner spiral line of the groove, the Vpin 20 will .engage with the nger 18 and cause the arm =9 to vdisengage with the arm 8 which permits they spring 1 2 to cause the .table to stop in the manner well Y It 4has been found in .the operation of this construction that it is exceedingly difficult to i l set the automatic stop. It is'diilicult to place the reproducing needle on 'the inner spiral lineA of the record. IThe needle is so 'located with respect to the reproducer and the lines are 'so close together Vand indistinct that it g Vrenders itdifiicult to locate the needle :at thev end of the record. y By my invention a means is provided for adjustingl the position of the finger 18 so as'tofbe engaged 'by the pin Q0 at the `end ofthe reproduction of therecord.

Thismay be accomplished by` a fixed scale anda movable pointer or by a reverse structure Vhaving a movable scale and a fixed pointer so placed as to indicate the position of the arm 11. It may also b e accomplished more 'efliciently and the refinements of the Yscale avoided by means of :a fixed scale setop of the casing l. Seven of the divisions of the scale 30k are a little less than leight of the divisions of the. scale 32; The .dividing points-of the scale 30 are indicated preferably bythe letters of they alphabet while the leadingv points of the scale 32 are indicated by numerals; The ,scalo points arevindicated inv any suitable way. I have. shown sharp arrow heads which; point to4 the division points of ,the scales: which greatly assist in determining When-the Scale @feinteY coincide.

The records may be marked with the scalo markings such as l-A or 7-D and the automatic stop may be `easily adjusted accordingly. The .diiiicult operation of hunting the terminus of the record and holding the reproducer, which injures the record, at the point of the'penetration of the needle in the record, while the finger 18 is brought into contact with the pin 20 and then subsequently swinging the arm 5 and reproducer 4 to near the periphery of the record disk '3, keeping in mind the necessity of lifting the reproducer from the record disk to avoid destruction of the record which would be caused by dragging the needle of the reproducer over the record, is avoided. By my invention all that is required is to place the two points indicated on the plate together such as the point A on the scale 30 in register with the point 1 on the scale 32 and sta-rt `the reproduction.

The arm 31 may be frictionally connected directly with the arm 9 or it may be attached to the arm 11 in any suitable way. In the form ofthe invention illustrated, I have provided a channeled L-member 34- wliich may be slipped over the linger 18. The turn of the channel may be provided with two lips 35 and 36 which extend over portions of the ngers `18 and 19. The member may be provided with two ears 37 and 38 and screws 39 and 4:0 may be inserted through the ears 37 and 38. They will extend through the channeled member on opposite sides of the arm l1 and operate to clamp the member to the arm 1l.

The arm 31 may be made of aluminum or any other suitable light weight material and the scale 3.0 may be made of any suitable sheet material on which the divisions and indications may be printed, and pressed or otherwise represented. Also the scale 32 may be vfixed in any suitable way upon the plate 33. The plate 33 may be formed with a depressed edge 41 so as to bring the surfaces of the two scales substantially in the same plane to further assist in the location of the points indicated on the record for placing the stop mechanism by the operation of the arm 31.

The construction selected and described, may be greatly varied in thc arrangement and manufacture of its parts and in the substitution of elements having equivalent functions and such modifications may be used for Amany varied purposes and still contain the invention.

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

In a stop mechanism of a phonographic machine, the combination of a stationary arcuate scale having sharp arrowheaded division points, a relatively short Vernier vscale having sharp arrow-headed division points,` a rotatable arm forsupporting the In ytestimony whereof, I have lhereunto Vernier scale and moving the scale division signed my name to this specification in the points along,` the lineof the division points presence of two subscribing Witnesses.

,Of the first named scale, numerals located in ORMOND H. PADDOCK. 5 the bases of the arrow headsof one scale, Witnesses:

and letterslocated in the bases of the other E. E; THOMAM,

Scale. F. BAUL.

@oplet of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente, Washington, 1D. G.

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