US1968059A - Adjustable stop device - Google Patents

Description

July 31, 1934. K. A. SYLVESTER El AL ADJUSTABLE STOP DEVICE Filed March 25, 1932 3 Sheets-Sheet l SYN/ESTER HUBER INVENTORS K/MMEL BY arm/2 A.

ATTORNE J y 1934. K. A. SYLVESTER ET AL 1,968,059

ADJUSTABLE STOP DEVICE Filed March 25, 1952 3 Sheets-Sheet 2 FIG.

ATTORNEY July 31, 1934. K. A. SYLVESTER ET AL 1,968,059

ADJUSTABLE STOP DEVICE I Filed March 25, 1952 3 Sheets-Sheet 3 INVENTORS K/MMEL A. SYLVESTEE OTMAE H. HUBER ATTORNEY Patented July 31, 1934 meats;

1,968,059 ADJUSTABLE sror DEVICE Kimmel A. Sylvester, New Rochelle, N. Y., and Otmar A. Huber, Chicago, Ill., assignors. to Teletype Corpcratiomfihicago, 111., a corporation of Delaware ApplicaticnnMarch25,1932, Serial No. 601,158

. ,lgolarms. (Cl.16 l112)' This invention relates to improvements in type setting systems and apparatus therefor and especially in perforators and counters which may be utilized for preparing a perforated tape'for I automatic control of composing machines of the linecasting type.

More particularly the invention relates to an improvement in adjustable stop mechanisms em- In the preferred embodiment herein disclosed the present invention is used with. a keyboard device intended to be employed in the preparation of perforated tapes, the perforations in which mined'length the amountor lengthfof a'line re- 3 maining to be filled or composed .willalways be provided which is adjusted for operation for lines of various lengths, the adjusting means of the present invention being applicable thereto, to de' fine the range of movement of the index' hand.

- operated in accordance with the widths' of the characters composed in the line, the operation of the counting mechanism being controlled, by a 4. series of keys arranged similar to the familiar typewriter keyboard, throughthe instrumentality of r a selector mechanism containedwithin the base of the keyboard device.

The. counting mechanism shown includes a single unit wheel, and'an escapement means has been provided to control the movement of the unitwheel in varying amounts to correspond to the thickness of the character composing the line. The indicating means comprises a sectoral or fan shape indicator, the indications of which are con;-- trolled. by the unit wheel as well as'by a space key, the cooperative eiiect of this dual control beingto indicateto the operator the approach of the end of the line. f j I A betterunderstanding of the invention may represent lines of composed matter; and also to take account of the number of characters or' matrices composed so that in a line ofpredetenascertainable. For this purpose an indicatoris' The movement of the index 'hand iscontrolled through a counting mechanism which is variably j be had from the following description, taken with the accompanying drawings, wherein:

Fig. 1 is a perspective exemplification of an embodiment of the device according to the invention. V f

Fig. 2 is a fragmental rear elevational view of the dial shown in Fig. 1 illustrating in detail the deviceof this invention. v

Fig. 3 is a front elevational view of the dial embodying the present invention. V,

Fig. 4 is a sectional View of the index hand release means.

Fig. 5. is a perspective view of a keyboard perforator and counter employing the device of the present invention. 1 v

Fig. 6 is a perspective representation of the counting mechanism utilized in the apparatus shown'i'n Fig. 5.

' Fig. 7 isan elevational view'of'the counting mechanism illustrating its operative positions.

Fig. 8 'is a fragmentalfront elevational view of the indicating mechanism utilized in the machine shown in Fig. 5.

' s is commonly known inthe typographical art, composing machines of thelinecasting type are provided with matrices which consist .of small brass uni'ts carrying indented characters in their edges and which are of diiierent thicknesses due to the fact that the characters varyin width. Thus when these matrices are assembled into. a line of predetermined length the number of'mat-' rices necessary to complete the line varies with. the particular matrices used, thelength of the line therefor is dependent, not upon the number of matrices in the line, but rather upon the 99 thickness of the characters or matrices making up the line. Consequently, it is necessaryv dur}. ingthe preparation of a perforated tape repre' senting lines of composed matter to totalize the various thicknesses of matrices corresponding 'to the code perforations made in the tape so that the operator will be apprised at all times. of the length of line remaining as each key is, operated'and can thus judge of the justifiability g of the line, and upon determination that the 160 line composed is justifiable, the index hand is' returned to its initial position againstthe adjustable stop provided by this invention, which has beenadjusted to suit the length ofline. s Besides the usual character matrices, composing machines of the particular type to whichthe present invention relates are also provided with expansible spacebands or spacers, or justi-q fying matrices as they are sometimes, called,

which comprise a portion analogous to and hav 116 ing the contour of a character matrix and which is positioned in the line of matrices usually between each series of character matrices comprising a word, and this portion has slidably articulated thereto and depending therefrom a wedge-shaped portion. By means of these wedge portions the spacers are adjusted between certain ranges of thickness before the casting operation is performed.

In order to accomplish the accurate counting or totalizing of the matrices or characters in the composed line the keyboard device shown in Fig. 5 is adapted to count proportions, and not actual dimensions. Thus, the apparatus can be used for any size of type, provided only that the character in the various fonts of type have the same unit groupings, and an interchangeable spaceband segment be chosen to suit the set size of the font of type. The unit of width used as a basis of measurement is called an em, and the proportions mentioned above are expressed in eighteenths of the em or set size, since it has been found desirable to divide the em quad, which is equivalent in width to the widest character into eighteen (18) units, and to establish eleven definite groupings, on the basis of the following unit size: 6 to 15 inclusive, and 18. Thus, for example, a lower case a would be assigned to group 11 regardless of the font or style of type, signifying that a lower case a is eleven units in width; a unit being not an actual dimension but merely a proportion of the quad or set size of the particular font of which it is a part.

Since the disclosure herein set forth is in the nature of an improvement of keyboard perforators and counters disclosed in the aforementioned application, only so much of the mechanism of said application will be described as is necessary to an understanding of the present invention.

To control the variable movement of the unit wheel of the counting mechanism or device for counting or totalizing the thickness of the matrices composed in the line, the selector mechanism therefor is selectively controlled by a key 11 (Fig. 5) in the manner described in detail in the aforementioned co-pending application. Briefly, the depression of a key 11 actuates an associated key lever 12, which in turn operates a code bar individual thereto to effect through a set of selector bars arranged transversely thereof the actuation of a corresponding selector lever 13 shown in Fig. 6. Disposed above each lever 13 and in cooperative relation therewith is a transfer lever 14 (only one being shown in Fig. 6) which is pivotally articulated to a stop bar 15. As clearly described in the aforementioned application the series of transfer levers 14 are actuated simultaneously toward the levers 13 upon the energization of the transfer magnet 16 (Fig. 5), and the selected transfer lever 14 is rocked in a counterclockwise direction, as viewed in Fig. 6, to move its associated stop bar 15 toward the left so that the left hand extremity thereof is introduced into the path of a unit rack 1'7.

" rack 17, Fig. 6, is a unit wheel 21 which is rotatably fixed on an operating shaft 22. In the present device a single operating shaft 22 is provided on which the unit wheel 21 is mounted, as

well as other operating parts necessary to control the various functions of the device. This operating shaft serves with its associated parts as a mechanical interconnection between the counting mechanism and the indicating mechanism, as clearly set forth in the aforementioned application. As indicated in Fig. 5 there is mounted on the operating shaft 22 and frictionally connected thereto a gear 23 adapted to be in mesh with a pinion 24 affixed to the armature shaft of a motor 25. Gear 23 is adapted to rotate constantly and thus through its frictional connection to the shaft tends to impart constant rotation to the shaft 22. By reason of its frictional relation to gear 23 the unit wheel 21 also constantly tends to rotate. However, its rotation is controlled normally by a pawl member 26 and the unit rack 1'7; one or the other of said members being in engagement with the unit wheel 21 during the counting operation.

Briefly, during the counting operation the pawl 26 and unit rack 17 are operated so as to bring rack 17 into engagement and pawl 26 out of engagement with unit wheel 21 substantially simultaneously (a slight overlap being provided to prevent the escape of the unit wheel), the effect being to permit the unit wheel 21 to carry the unit rack 1'7 toward the right (as viewed in Fig. 6) until it is arrested by a selected one of the stop bars 15, at which time pawl 26 is again brought into engagement and rack 1'7 out of engagement with unit wheel 21 substantially simultaneously to prevent further rotation of unit wheel 21 while unit rack 17 returns to its original position.

Having reference to Figs. 6 and '7 it will be noted that the rotation or escapement of unit wheel 21 is controlled by the aforementioned unit rack 17 and the pawl member 26. As previously described the unit rack 1'7 is slidably carried on the unit rack slide 18 which is pivotally carried on bracket 27 integral with the base of the device. The unit rack 17 is provided with a pair of lugs 28 and 29. The right hand lug 28, as viewed in Fig. 6, cooperates with the stop bars 15, while the left hand lug 29 co-acts with a spring actuated return lever 31 pivotally mounted at 32 to a bracket 33. The tension of a spring 34 which actuates the return lever 31 is adjustable by means of a screw 35 mounted in bracket 33.

Pawl member 26 is pivotally mounted at 36 on a bracket 3'7 and tends to rotate in a counterclockwise direction (as viewed in Fig. 6) due to the action of a spring 38, one end of which is secured to the upper extremity of the pawl member 26, and the other end being attached to a spring slip 39. Pawl member 26, which is provided with a toothed portion 41, thus is held in engagement with the teeth on the unit wheel 21 by means of spring 38. A stop 42, however, is provided whereby the degree of engagement between the toothed portion 41 and the unit wheel 21 may be controlled; that is, it is desirable ,to prevent the teeth in the pawl member 26 from bottoming when they engage with the teeth in the unit wheel 21 to preclude damage thereto from wedging.

Depending from pawl member 26 is a portion 43 which is provided with a laterally disposed end 44 (Fig. '7) adapted to cooperate with the extremity of the unit rack slide 18. The pawl member 26 is also arranged with an arm 45 to the outer end of which is pivotally connected one end of link 46,

the other end of which is pivotally connected to the end of lever 4'7, which in turn is pivoted at 48 to the slide member 18. The opposite end of lever 21 which would otherwise be liable to occur. In.

bracket 3'7. Operating lever 51 is also-provided with two arms 53 and 54. At the extremity of arm 53 is carried a follower roller 55 whichco-aots. with the cam 56. A follower roller 5'7 is also carried at the extremity of arm 54 of the operating lever 51 and is adapted to cooperate with a pair. of cam portions 58 and 59 diametrically opposed to each other and which are secured to'theface of the cam 56. Cam 56 is provided with two similar cam surfaces, since two complete operations are performed during one complete revolution of the cam; that is, for one complete opera tion the shaft and cam are permitted. to rotate one-half revolution thus enhancing the speed of operation of the apparatus. 1

Upon the initiation of the rotation of cam 56 the follower roller 55 is acted upon by the periphery of the cam 56 so as to impart clockwise rotation to. the operating lever 51. Arm 49 of the operating lever 51 thus is raised and in so doing lever 4'7 is caused to rotate about its pivotal connection with link 46 thus elevating the pivot 48 between the lever 47 and the unit rack slide 18., Slide 18 thus is elevated so as to bring the unit rack 1'7 into engagement or mesh with the unit wheel 21. The continued rotation of the operating lever 51 in a clockwise direction, due to the conformation of the cam, causes the lever 4'7 to rotate about its pivot 48 as a fulcrum, in which event the link 46 is given a downward movement which in turn imparts a clockwise rotation to the pawl member 26 about its pivot 36 against the action of spring 38. The lateral portion 44 of the. pawl member 26 is now disposed beneath 1 the endof the unit rack slide 18, as indicated in dotted lines in Fig. '7, to insure, during the ensuing operation of the escapement means, the interengagement of pawl 26 with unit wheel 21 prior tothe disengagement ofrack 17 to preclude the undue escapement or movement of unit wheel effect, the portion 44 performs the function of a safety device.

The unit wheel 21, which constantly tends to rotate by virtue of being fixed to shaft 22, is thus,

} the follower roller 5'7 so as to suddenly reverse the direction of rotation of the operating lever 51. The unit rack slide 18 cannot at this time be lowered because of the engagement of its for-J ward extremity with the lateral portion 44 of the pawl member 26. Therefore lever 47 is caused to rotate in a counterclockwise direction'aboutthe pivot 48 to cause the link 46 to be elevated, which in turn permits pawl member 26 to rotate .in a counterclockwise direction, due to the action of its spring 38, into engagement with the unit wheel 21, simultaneously. causing the withdrawal of lateral-portion 44 from engagement with slide 18.

The continued rotation of the operating lever 51 in a counterclockwise direction, due to the con tour of the cam. now causes the lever 47 to'rotate about its pivotal connection to link. 46 in a counterclockwise direction to withdraw the unit rack 1'7 from engagement with the unit wheel 21. The unit rack is thereupon placed under the influence of the spring actuated return lever 31 (Fig. 6) and is carried toward the left thereby to. its stop 61. The stop 61 is adapted to be cushioned by a com pression spring62 as indicated in Figs. 6 and '7.

. To enhance the speed of operationof the apparatus herein described an escapement mech anismis provided, whereby the amount ofrotation of the operating cam 56 to effect a complete cycle of operation is limited to 180 or one-half revolution; thus, as previously indicated the cam 56' is provided with two similar cam surfaces.

The rotation of the shaft 22 is controlled by an electromagnetically operated escapement .means shown in Fig. 5. The stop disc 63 is provided on its periphery with two diametrically opposed teeth (only one of which is shown in Fig. 5), since two complete operations are performed for each complete revolution of the disc 63. As set forth in. the aforementioned application the stop disc 63 and the cam 56 are integral with a common sleeve member so that they function as a unit. When the escapement magnet 64 is energized momentarily its armature 65 is attracted and released, thus causing the escapement pawl 66 integral with the armature to effect the release or escapement of the stop disc 63 in" known manner. Y Theindicating mechanism is illustrated in Figs. 1 to. 5 inclusive. Fixed to the extremity of the operating shaft 22 opposite to the unit wheel 21 is a pinion 6'7 (Figs. 1 and 4) which is adapted to mesh with a gear 68 mounted on. the stud shaft 69. The rotation of pinion 6'7 in variable amounts is controlled by the counting mechanism, previously described, and the rotation thereof is transmitted through gear 68 to an index hand or pointer '71. is provided with a hub and is rotatably mounted on the stud shaft 69 fixedly mounted on a bracket '72, Figs. 1 and 4. Stud shaft 69 carries axially therethrough a rod '73, the lower extremity of which, as viewed in Fig. 4, is provided withanintegral flange, and the opposite end, as viewed in Fig. 1, is provided with a threaded portion.

The studshaft 69 is flanged at its outer .end' thus forming a suitable journal for the gear '68 andissecurely attached to the bracket '72 by means of a nut 74 and a locknut '75. A friction disc '76 is carried at the end of the rod '73 (Fig.4).

. adjacent to the flange on said rod, which disc'76 is provided witha slot 7'7, more clearly shown in Fig. 2, adapted to receive a pair of diametrically opposed ears'78 and '79, integral with the hub of gear 68. The disc '76 thus is rotatable with th'e gear 68. Interposed between the disc .76 and the flange 81 integral-with the hub of gear 68 and adapted to fit over theearsv '78 and '79 is theindex l handor pointer '71. Pointer '71 is normally held clamped between the disc '76 and flange 81 due to the distended action of a helical compression spring 81 carried on the rod '73.

vThe pressure exerted by the spring by the adjusting nut 82, Fig. 1, the pointer 71 is adapted to be rotated correspondingly with the gear, 68. A magnet 83 suitably mounted 'in the bracket '72. is provided with an armature lever 8.4 which carries at one end an adjusting screw,.-. 80 which is arranged substantially in axial coinci-' dence with the rod '73. The screw 80 is normally held in abutting relation with the rod "73 by means of a spring 85 operatively connected to the armature 84. The adjustment just described is provided so that when the electromagnet 83 is energized the attraction of the armature 84.

efiected thereby will cause the movement'of the rod '73 against the action of the spring 81 an amount suflicient to insure, the relaxation of the pressure between disc '76 and flange 81 to permit being varied that bracket 72 is provided with a vertical portion 86 on which is adjustably supported a sectoral or fan shape indicator dial 87, more clearly shown in Figs. 2 and 3. The dial 87 is pivotally held by a collar nut 88 (Fig. 1) about which it is rotatable, the amount of rotation of which is limited by a slot and screw adjustment, not shown. As indicated in Figs. 2 and 3 the pointer 71 is provided at its outer extremity with a reverted portion 89 adapted to fit over and move along the arcuate edge of the dial 87. As shown in Fig. 3, the dial 87 is provided adjacent its arcuate edge with a scale or series of graduations representing ems, the unit of type measure, and fractions thereof. The reverted end 89 of the pointer 71 moves along this edge of the dial from left to right, towards zero, in response to the totalization or accumulation of the matrices or character thicknesses by the counting mechanism, in the manner previously described.

The annular pivotal portion of the pointer 71, as clearlyshown in Fig. 2, is provided on a part of its peripheral edge with a series of projections 91, adjacent ones of which are oppositely deflected to form a pulley-like groove to receive a flexible cord 92, one end of which is attached to the pointer as. shown in Fig. 2 and the other end is secured to the extremity of a spring actuated pointer return lever 93 (Fig. 1).

It is obvious, therefore, that when the magnet 83, Fig. 1, is energized to effect the removal of the pressure of spring 81 from disc 76, the pointer 71 will be free to rotate in a clockwise direction as viewed in Fig. 1, due to the urge of return spring 94 until it is arrested'by the adjustable stop 95 of the present invention.

The lines of composition must necessarily vary in length to suit the width of the column of composed or printed matter into which they are to be inserted; therefore, it is customary to provide a stop which is movable along a slot or guideway which stop forms a return point for the pointer or index hand 71. This point does not represent the zero position of the line, but instead repre sents the ultimate or limiting width of the line. The distance, then, from the stop to the zero point represents the permissible range of movement of the pointer for a predetermined length of line. Thus, the pointer 71 moving from left to right (Fig. 3) indicates, by its distance at any instant from the zero point marked on the gauge, the amount of line remaining to be filled, and when the pointer reaches the zero point, or approximately thereto, it is released and spring-returned to the original position to begin its movement in accordance with a new line.

It is manifest that an ordinary stop means must of necessity be movable between limits corresponding to the maximum range or length of line of which the dial is capable of indicating and in effect, corresponds to the full width of the dial. However, in the adjustable stop device 95 of the present invention, which of itself is movable within a small range, but provides adjustability within a wide range, a stop is provided, as indicated in Fig. 2, which comprises a substantially Y-shaped portion 96 of the ends of the arms 97 and 98 of which are provided with laterally disposed lugs 101 and 102, respectively. The stem portion 103 is provided near its extremity with a pair of laterally disposed portions 10% and 105 adapted to fit snugly into an arcuate slot 106 in the dial 87. The stem portion is also provided intermediate the lugs 104 and 105 with a threaded hole to receive a thumb screw 107 (Fig.

3), the shoulder of whichis adapted to span the slot 106 so that the tightening of the screw 107 will effect a clamping means for the stop member and permit its adjustability.

At the fork of the Y portion formed by the arms 97 and 98 there is pivoted a stop member 108 adapted to swing between the limiting lugs 101 and 102. Stop member 108 is provided with the integral stud 109 against which the pointer 71 is adapted to strike. The prime purpose of providing such an adjustable stop is to permit of a wide range of adjustability with a minimum length of slot 106, thus preserving the rigidity of the dial.

When a maximum length of line is used, the member 108 is swung around to abut stop lug 102, and the adjustable stop 95 is moved in this condition toward the left as viewed in Fig. 3 so that the stop pin 109 aligns radially with the extreme left graduation. It is apparent that the end of the slot which is considerably inside of this point does not impair the strength or rigidity of the dial. Likewise, when a short line is to be used, the arm 108 is swung around to engage lug 101 and the adjustable stop 95 is moved in this condition toward the right (Fig. 3) so that for a minimum length of line the stop pin 109 will be considerably in advance of the right end of the slot, thus preserving the metal between the right end of the slot and the edge of the dial.

It is well known in the typographical art that the amount of possible justification in any assembled line of matrices is determined by the number of spacebands or spacers contained in it. As previously mentioned a spaceband comprises a matrix-shaped portion in which is slidably carried a wedge portion. The expansibility of the spaceband is determined by the difference between the thin end and the thick end of the wedge portion. Thus in order that the spaceband may be effective to justify a line, the difference between the aggregate or totalizedthicknesses of the matrices in the line and the predetermined length of line must be equal to or less than (preferably the latter) the aforementioned difference in thickness, or expansibility of the spaceband; so that, when the wedge portion is slidably moved along the matrix-shaped portion, which is held in alignment with the rest of the matrices in the line, it will tend to fill up as it were, the space left between the last matrix and the limiting gauge representing the length of line. So, too, a similar result will be obtained when two or more spacebands have been included in the line; in which event the spacebands will be effective to justify the line when the difference between the totalized thicknesses of the matrices and the length of line is less than the sum of the differences in thickness, or expansibility of the spacebands.

In the manual operation of a composing machine, the keyboard operator may Watch the assembly of the matrices and spacebands in the assembling elevator, and thus personally determine the justifiability of the line. However, in the automatic operation of a composing machine by means of perforated tape the justification must be predetermined.

As previously set forth, the reverted end 89 of the pointer 71 moves along this edge of the dial from the adjustable stop 95 toward zero, in response to the totalization of the matrix or character thicknesses by the counting mechanism. Thus, the distance from the pointer 71 to zero indicates the amount of space left in the line to be filled with matrices, when the line contains -35. dial, an index hand, said index hand operable in accordance with the operation. of said keys to control the operation of said indicating device, said indicating device including an index member movable variably in accordance with the operation of said counting device, a pair of pointers, a special key for controlling the actuation of said pointers different amounts for each effectiveness thereof for indicating the cumulative expansibility of the word spacers, and an adjustable stop device including a dually positionable member adapted to cooperate with said pointers to define the limits of a justifiable line of characters. 5. In a keyboard device suitable for the production of perforated tape representing justifiable lines of matrices, a plurality of members movable under different operating conditions, a series of keys, means operated upon the depression of each of said keys for eifecting the movement of one of said members an amount predetermined by the particular key depressed, a special key, means actuated by said special key for controlling the movement of the others of said members differentially according to the number of times said special key is depressed, and an adjustable stop device including a dually positionable member adapted to cooperate with said last mentioned members to define the permissible range of movement of said first mentioned member indicative of a justifiable line of matrices.

6. In a keyboard device suitable for the production of perforated tape representing justifiable lines of matrices, a plurality of keys, a counting device comprising a single unit wheel, means to rotate said unit Wheel variable amounts according to the keys depressed, an indicator variably to correspond with the operation of the unit wheel, a special key, a pair of pointers, means controlled by said special key to move said pointers proportionally each time said special key is depressed, and an adjustable stop device including an extension member adapted to cooperate with said pointers to define the permissible range of movement of said index hand indicative of a justifiable line of matrices.

7. In a keyboard device suitable for the production of perforated tape representing justifiable lines of matrices, a plurality of keys, a "counting device comprising a single unit wheel, means to rotate said unit wheel variable amounts according to the keys depressed, an indicator dial, an index hand, said index hand operable variably to correspond with the operation of the unit wheel, a special key,a pair of pointers, means controlled by said special key to move said pointers proportionally each time said special key is depressed, and an adjustable stop device including an extension member adapted to cooperate with said pointers to define the limits of a justifiable line of matrices.

. 8. In combination with a keyboard perforator suitable for the production of perforated tape representative of consecutive characters and expansible Word spacers, a plurality of keys, a counting device comprising a single unit wheel, means 1 to rotate said unit wheel variable amounts according to the keysoperated, an indicator dial, an index hand, said index hand operable variably to correspond with the operation of the unit wheel, a spacer key, a pair of pointers, means con.-

- trolled by said spacer key to move said pointers differentially to correspond to the increment of expansibility provided by a spacer each time said spacer key is operated, andan adjustable stop device includingan extension member adapted to cooperate with said pointers to define the permissible range of movement of said index hand.

9. In combination with a keyboard perforator suitable for the production of perforated tape representative of consecutive characters and exe pansible Word spacers, a plurality of keys, a counting device comprising a single unit wheel, means to rotate said unit wheel variable amounts according to the keys operated, an indicator dial, an index hand, said index hand operable variably with respect to said dial to correspond with the operation of the unit wheel, a spacer key, a pair of pointers, means controlled by said spacer key to move said pointers differentially to correspond to the increment of expansibility provided by a spacer each time said spacer key is operated, and an adjustable stop device movable integrally within a small range and providing adjustability within a wide range adapted to cooperate with said pointers to define the permissible range of movement .of said index hand.

10. In combination with a keyboard perforator suitable for the production of perforated tape representing justifiable lines of matrices, a scale, an index member movable variably with respect to said scale to show the totalized width of matrices in the line at any time, a pair of pointers movable variably with respect to said scale to show the amount of justification possible in the line at any time, and a stop device movable integrally within a small range and providing adjustability Within a Wide range adapted to cooperate with said pointers to define the limits of a justifiable line of matrices.

11. In combination with a keyboard perforator suitable for the production of perforated tape representing lines of composition, a member movable under certain operating conditions, a pair of members operable under other operating conditions, and means movable integrally within a small range and adapted to provide adjustability Within a wide range cooperative with said pair of members to define the effective range of movement of said first mentioned member.

12. In combination with a keyboard perforator suitable for the production of perforated tape representing lines of composition, a scale, a pointer movable variably with respect to said scale to indicate the cumulative widths of characters, a pair of pointers, a gear train from a common source of power for rotating said pair of pointers different distances for each effectiveness thereof for indicating a different condition, and an adjustable stop device including an extension member adapted to cooperate with said pair of pointers to determine the permissible range of movement of said pointer.

13. In a keyboard perforator suitable for the production of perforated tape representative of consecutive characters and expansible word spacers, a counting device, an indicating device M ingly to indicate the cumulative widths of charactors, a pair of pointers, a gear train from a common source of powerfor rotating said pair of pointers proportionally for each effectiveness thereof to indicate the cumulative expansibility of the word spacers, and means movable integral 1y within a small range and adapted to provide adjusta'loility within a wide range cooperative with said pair of pointers to define the effective 5 range of movement of said index member.

14. In an indicating device, a dial, an index member, means to move said index member relatively to said dial to indicate a certain condition, a pair of pointers, means to move said pair of KIMMEL A. SYLVESTER. OTMAR A. HUBER.

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