US2770356A - Control unit for composing machines - Google Patents

Description

Filed. Dec. 1, 1953 llllllllllllIillllllllllllllllllllllllllllllllllllllllllllllllllIlllIIIlllllIlllllllllIllIllllllllllllllllllllllk A. F. LINDBERG CONTROL UNIT FOR COMPOSING MACHINES 3 Sheetsheet 1 INVENTOR F. ummamm NW5! 13, 1956 A. F. LINDBERG CONTROL UNIT FOR COMPOSING MACHINES Filed Dec. 1, 1955 m wE . TORMEY v0 13, 1956 A. F. LINDBERG 2,770,356

CONTROL UNIT FOR COMPOSING MACHINES Filed Dec. l, 1953 3 Sheets-3heet 5 INVENTOR ARTHUR F. LINDBERG ATTORNEY CONTROL UNIT FOR COMPOSING MACHINES Arthur F. Lindberg, Chicago, Ill., assignor, by mesne assignments, to Teletypesetter Corporation, Chicago, 111., a corporation of Delaware Application December 1, 1953, Serial No. 395,509

4 Claims. (Cl. 199-18) This invention relates to control mechanisms for linecasting and composing machines and more particularly to apparatus for effecting the selective response of such machines to stored signal conditions.

The principal object of the invention is to provide facilities for effecting the actuation sequentially of a plurality of normally individually responsive instrumentalities in response to a single stored signal.

Another object of the invention is to provide means responsive initially to a predetermined code signal for controlling a predetermined function, and responsive thereafter to a different signal for also controlling said function.

Specifically, the arrangement according to the present invention recognizes a predetermined code signal formed by changing an existing code, or by the introduction of a new code so that recurring use of the space code signal within a line after said predetermined code signal will cause sequential selection of a space band followed sequentially by a fixed space, such as a thin space and an on space or em space.

in the composition of material to be printed, it is the custom to finish all lines except certain short ones on a fixed right-hand margin. In composing machines of the linecasting type, this operation, called justification, is accomplished through the use of expansible spacebands to provide interword spaces. As a line is concluded, if the expansibility afforded by the included spacebands is sufficient to expand the line until it fills the required column width, the line is said to be justifiable. It may sometimes happen that a composed line which is short of justifiable length will not accommodate the next Word or the next syllable of that Word. The compositor may increase the length of the line by inserting fixed spaces, which are blank matrices of uniform thickness, adjacent the spacebands.

The subjection of linecasting and composing machines to automatic control, such as, for example, in the manner disclosedin Patent No. 2,091,286, granted August 31, 1937, to H. L. Krum et al., may necessitate special treatment with reference to nonjustifiable lines. Automatic control units of the type disclosed in the patent to H. L. Krum et al. may be controlled by perforated strips which may be produced by means of a keyboard perforator, such as the one disclosed in Patent No. 2,059,250, granted November 3, 1936, to H. L. Krum. The counting of the matrix thicknesses and minimum and maximum spaceband values cumulatively is accomplished concurrently with the application of the signals to the strip representing the matrices and spacebands to be assembled. The deficiency of a line is discovered after the signals have been applied to the tape, but individual signals for the selection of fixed spaces cannot then be inserted conveniently because the already punched signals follow one another at closely spaced intervals. It has been a practice heretofore to render the series of signals representing a deficient line ineffective by rerunning the signals through the perforator and connited States Patent band signal.

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verting each to the so-called rub-out or alLperforated signal. This series of ineffective signals is then followed by a reperforation of the signals representing the line to be composed, with the fixed space signals included at the desired points. The sensing of the idle signals, when the control strip is run through the control unit for the linecasting and composing machine, accomplishes no useful purpose and results in a period of idleness of the composing machine.

In accordance with the present invention, it is proposed to control automatically the release of fixed spaces to accompany a deficient line, without the insertion of signals particularly associated with the release of fixed space matrices, and by the modification of one or more of the spaceband signals in the line. The modification comprises the perforation of an additional code hole or holes whereby the ordinary spaceband signal is converted into an extraordinary spaceband signal. It may be accomplished by backspacing the control strip through the perforator until that one or those of the spaceband signals that are to be converted from the ordinary to the extraordinary spaceband signal are aligned with the punches, and depressing the key lever assigned to the execution of an extraordinary spaceband signal, or by inserting the additional perforation or perforations by means of a hand punch or by an auxiliary punch block in the keyboard perforator provided for that purpose. No other modification of the signals in the tape is required, and none of the signals in the deficient line is destroyed.

According to an additional feature of the invention, a means is provided whereby the record sensing and pull bar selecting apparatus will be conditioned, upon responding to an extraordinary spaceband signal, for releasing a fixed space matrix in response to each subse quent spaceband signal in a line whether such subsequent spaceband signal is the ordinary spaceband signal or has been converted to the extraordinary signal. In other words, the mechanism will automatically add a fixed space to each succeeding spaceband for the remainder of the line, although the tape reader senses only a space- At the end of the line the elevator mechanism will relatch the added fixed space mechanism permitting the unit to return to normal for the next line.

A full and complete understanding of the invention may be had by reference to the following description considered in the light of the accompanying drawings, in which:

Fig. 1 is a front elevational view of a portion of a linecasting and composing machine having an automatic control unit applied thereto;

Fig. 2 is a longitudinal sectional view of the record reader mechanism having embodied therein principles representative of the present invention;

Figs. 3, 4 and 5 are similar fragmental plan views showing the arrangement according to the present invention in different conditions of operation, and

Fig. 6 is a plan view of a fragment of control tape containing signals for releasing a spaceband alone, a fixed space matrix alone, and for releasing both sequen tially.

Referring now to Fig. 1, the reference numeral 11 indicates generally a linecasting and composing machine. The linecasting machine has a conventional keyboard mechanism 12, matrix storage magazine 13, spaceband storage magazine 14, assembler belt 16, and an assembler elevator 17. The release of matrices from the matrix storage magazine 13 is effected by the lifting of release reeds 18, which may, if desired, also be controlled from the keyboard 12, and the release of spacebands 19 from spaceband storage magazine 14 may be effected by the lifting of a special release reed 21, which may, if desired,

also be controlled by a manually operable spaceband key lever 22. A lever23 pivoted intermediate its ends, as at 24, has one end connected to the spaceband release reed 21, and has the other end connected to the spaceband escapement mechanism 26. The assembler elevator 17 has depending therefrom a link 27 Which is articulated at its lower end to a crank arm 28 carried by a rock shaft 29. However, the present invention contemplates the operation of the spaceband mechanism and of other instrumentalities of the linecasting machine, of which the assembler elevator 17, operable from the rock shaft 29, i an example, under the control of an automatic control unit which is indicated generally by the reference numeral 46, and which may be constructed in accordance with the teachings of the hereinbetore mentioned patent of H. L. Krum et al.

The automatic control unit 46 is attached to the linecasting machine l1 below and forward of the keyboard mechanism 12, and is arranged to be driven by power derived from any convenient continuously rotatable power shaft of the linecasting machine, such as the intermediate shaft 47 (Fig. l). The power takeoff for driving the automatic control unit may be a pulley 43 mounted on the intermediate shaft 47. Pulley 43 drives a belt 49 which engages a pulley (not shown) included in the record sensing mechanism indicated generally by the reference numeral 51 (Fig. l).

The manner in which release reeds 18 are lifted to effect the release of a matrix is illustrated in Pig. 7 of the aforesaid Patent No. 2,091,286 and described therein. In said Fig. 7 is also shown the structural details of the selecting unit contained within the housing 52, which selecting unit is controlled by the record reader or record sensing unit 51. The record reader mechanism consists briefly of a set of feeler levers or tape sensors 53 (Fig. 2), each provided with a feeler pin 54 and pivoted on a common shaft 55. As mentioned hereinbefore, the perforated tape or control form 56 is previously prepared in a perforating machine of the type disclosed in Patent No. 2,059,250, where it receives permutatively variant transverse rows of holes. Where the tape is employed in the control of linecasting machines, each row relates to a line composition character, or to a functional operation of the composing machine as distinguished from matrix release or selection. Each row may be said to comprise the area, transversely, in which a basic number of perforations may occur permutably. Because the presence or absence of a perforation is controlled by perforating mechanism which may be electrically supervised, these indications will be referred to according to telegraph terminology as marking and spacing signal elements, respectively.

. Individual springs 57 tend normally to maintain the feeler levers 53 in their extreme counterclockwise position and in this they are cyclically opposed by the action of a reciprocating bail 58 which is comprised of a transversely extending rod 59 traversing beneath the horizontal extensions 61 integrally formed with the feeler levers 53. The reciprocating bail 58 is pivotally supported at an intermediate point 62 thereof and includes a depending portion which carries a follower roller 63 spring urged against the periphery of a feeler lever operating cam 64. The latter is carried upon ashaft 65 which is driven through a clutch from a suitable source of power. In addition to cam 64, shaft 65 alsocarries a tape feed cam (not shown) and a cam 66 which serves to reciprocate periodically a set of transfer T-levers 67 as described hereinafter.

During its cycle of rotation, the tape feed cam (not shown) imp ants reciprocatory movement to a follower roller (not shown) carried by a tape feed lever 68. At the opposite extremity of lever 68 is pivotally carried in upright position a tape feed pawl 69. The reciprocatory movement of pawl 69 whichengages the teeth of a ratchet wheel 71 imparts step-by-step motion to a tape feed shaft 72 which carries a sprocket feed wheel 73 whose pins coincide with the central row of perforations conventionally provided in control forms or tapes 56 of the class employed in connection with permutation signal operating mechanisms. A spring 74 urges lever arm 68 in a clockwise direction about its pivot. The movement of the tape feed pawl 69 upwardly does not cause the movement of the tape 56, but this is done upon the downward movement thereof by spring 74.

When the several feeler levers 53 are cyclically withdrawn by bail 58, the tape 56 is advanced (toward the left in Fig. 2) a distance of one step by the pawl 69, following which bail 53 is returned, permitting the individual springs 57 to urge their associated levers 53 in a counterclockwise direction. The presence or absence of a hole in the tape determines finally the distance of angular movement of any of the levers 53, depending upon whether the feeler pins 54 pass through the tape or whether they are blocked by the tape as where a nonperforated position is found. The setting of the combined set of levers 53 is thereafter communicated by an associated set of transfer T-levers 67 to a set of intermediate connector bars 75. Counterclockwise movement of transfer bail or device. 76 thrusts the transfer levers 67 upwardly, causing their T-head projections 77 to encounter one or the other of the feeler lever shoulders 78. In accordance with the positions of the several levers 53", the transfer levers 67 are rocked clockwise or counterclockwise, causing their disc extensions 79 to move the connector bars or settable members 75 correspondingly. The connector bars or settable members 75 thereby receive a setting which corresponds to the perforations in. the tape during each given cycle of op eration and they in turn communicate this setting to a set of notched code selector bars 31.

As outlined hereinbefore, it is necessary to provide for the addition of fixed space matrices to be assembled adj-acent to some or all of the spacebands. This may be accomplished by bringing back into registry with the punch pins in the perforator those of the spaceband signals representing spacebands with which fixed space matrices are to be assembled, and converting them from the ordinary spaceband signal 83 indicated in Fig. 6 as a single perforation in the code element 3 position to an extraordinary spaceband signal 84 by the addition of a perforation in the code element 0 position' When fixed space matrices are required as a regular pant of the composition without reference to spacebands or the filling out of a deficient line, they are represented by a code 85 lit-wing a single perforation in the code element 0 position. Thus, by combining the attributes of both the spaceband signal and the fixed space signal, both a spaceband and a fixed space will be selected simultaneously.

With the arrangement according to the present inven tion, means is provided whereby the selector apparatus will be conditioned, upon responding to the 0-3 or extraordinary spaceband signal, for releasing a fixed space matrix in response, to each subsequent spaceband signal in a line whether such subsequent spaceband signal is the ordinary spaceband signal or has been converted to the extraordinary signal. Inv other Words, in the practice of the invention, means is provided in a linecasting and composing machine for releasing spacebands and fixed spaces sequentially in response to a predetermined code signal which comprises changing only the first spaceband signal in the line pursuant to which the mechanism will automatically add a fixed space to each succeeding spaceband for the remainder of the line, whereupon the elevator signal will restore the arrangementto normal condition. This result is accomplished by providing a parallelogram arrangement responsive to the add fixed space code signal to effect sequential operation of both of the special fixed space and spaceband bell cranks, as willhereinafter appear.

Each of the members 75 is provided with a notch 82.

The several notches 82 are so arranged that upon the sensing of a predetermined code signal; for example, the extraordinary spaceband signal 84 in Fig. 6, they are brought into transverse alignment, affording thereby a clearance for a rod 86 which is superimposed thereover and seeks at all times to descend into said clearance. When, following the reception of said signal 84, rod 86 is permitted to descend, a bell crank lever 87 to which the rod 86 is secured is thereby permitted to rotate clockwise in response to the urge of its spring 88, Fig. 2.

Cooperating with the vertical arm of bell crank lever 87 is a depending arm of a bell crank lever 89 mounted pivotally on a pivot 91 and normally biased clockwise by a spring 92. The horizontal arm of lever 89 terminates in a hook portion which cooperates in interengaging relation with a corresponding and inversely directed hook portion on a link member 93. Link 93 is mounted in parallel motion manner on a pair of appropriately mounted links 94 and 95. Link 93 under normal conditions remains interengaged with the bell crank lever 89 but is biased leftwardly by a spring 96 toward a stop member 97. l

At its left extremity (as viewed iirFigs. 2 and 3), link 93 is articulated pivotally at 98 to afloating member 99 which is also carried pivotally at 101 by the left end of a link 102, mounted rearwardly ofland similarly to link 93 on a pair of links 103 in parallel motion manner. Floating member 99 is provided with a laterally directed extension 104 adapted, under certain operating conditions, to cooperate with a sidewardly directed portion 105 integral with a bar 106, as will presently appear. Bar 106 is suitably guided for movement longitudinally into cooperation with the depending arm of a bell crank 107, similar to bell cranks 65 shown in. the aforesaid United States Patent No. 2,091,286. Also mounted on pivot 98 on the floating member 99 is an arm 108 norrnally urged in the counterclockwise direction by a compression spring 109 to bring its free end into engagement with a laterally directed stop portion 111 integral with floating member 99.

In juxtaposition with bar 106 is a suitably supported slide 112 on which is mounted pivotally at 113 a swingable bail member 114 which is normally biased clockwise by a spring 115 wrapped around the pivot post 113 and anchored by a pin 116. Carried at the free extremity of member 114 is a roller 117 adapted to cooperate with the arm 108 in a manner to be described. The slide 112 is provided with a vertical flange 118 which cooperates with a depending forked extension of the spaceband selector bar 119 comparable with selec: tor bars 33 shown in Fig. 7 of said United States Patent No. 2,091,286. In juxtaposition to slide 112 is a. bar 121, the forward end (lowermost as viewed in Fig. 2) of which is connected pivotally by a common pivot 122 to one arm of a bell crank lever 123 and to a blade 124 of a parallelogram device. The other arm of the bell crank lever 123 is connected pivotally to one end of link 125, the other end of link 125 being connected pivotally to one arm of another bell crank lever 126 the other arm of which is pivotally articulated to the other end of the blade 124. The blade 124' is adapted to cooperate with the depending arm of a bell crank lever 127, similar to bell crank 107;

The floating member 99 is provided with a latcralprojection 128 which is adapted to cooperate with one arm of a latching lever 129. To the extremity of the other arm of lever 129 is pivotally connecteda bar 131, which is, in turn, connected in parallelmotion manner to an arm 132. Bar 131 is normally biased rightwardly by a spring 133. Carried on bar-131 adjacent to bar 121 is a cam follower roller 134 which is cooperable with a cam projection 135 integral with the bar 121. Bars 106, 119, and 121 are normally biased rearwardly of the apparespective springs. a

ratus (upwardly as viewed in Figs. 3, 4 by their In the operation of the device according to the invention, it is assumed that the elements of the structure are in their normal unopcrated position, as shown in Fig. 3. Upon reading the tape 56 the selector levers 53 are set permutatively, whereafter the transfer T-levers 67 are actuated by the transfer bail 76 to transfer the selection to the connector bars 75 which, because they are articulated to code bars 81, will set said code bars 81 correspondingly to produce an alignment of notches therein so that the selectable bar 119 will enter said alignment of notches in order to effectuate its operation by the operating bail, as described in said Patent No. 2,091,286, to etfect the selection of a spaceband.

Thus, in response to the spaceband signal (code element 3 position), which is the position 83 in, Fig. 6, the selector bar 119 will be selected and the bell crank 107 will be operated, as will presently appear, to effect through its associated reed 21, Fig. 1 (as disclosed in Patent No. 2,091,286), the counterclockwise rocking of lever 23 about pivot 24 to operate the spaceband escapement mechanism 26 to release aispaceband from the spaceband storage magazine 14. It will be noted hereinafter that the spaceband selector bar 119 is also selected in response to the extraordinary spaceband code signal 84, but with a different effect. However, when the apparatus is operated in response to the spaceband signal alone, said apparatus is in normal condition of operation, shown in Fig. 3.

Now, in response to a fixed space signal (referred to also as the thin space signal) which is in the position 85, Fig. 6, exemplified by the code element 0 position, the selector bar identified with the thin space position in the matrix storage magazine 13 will be selected and operated so that a thin space matrix (also called fixed space, because it may control the release of an en space or em space matrix) will be released to drop upon the assembler belt 16 and be conveyed to the assembler elevator 17.

As previously mentioned, it is desired to sequentially select a spaceband and a fixed space matrix (called the a dd-fixed-space function). in this event the spaceband signal (code element 3 position) is changed to an add fixed-space signal (code element 03 positions) exemplified by transverse row 84 in Fig. 6. Then, upon the sensing of the add-fixed-space code signal by the pins 54 of the tape reader 51, the bars 75 are set perrnutably in the manner previously described, resulting in an align.- ment of the notches 82 in bars '75 (Fig. 2). Also, the bars 81 are set correspondingly to effect the selection of the spaceband pull bar 119. in response to the alignment of notches 82 the rod '86 will descend thereinto due from the position shown in Fig. 3 to the position shown in Pig. 4, whereat, the extension 104 is presented into to the action of spring 82% (which is stronger than spring 92) upon bell crank lever 87. The resulting clockwise rotation of lever 87 will cause the bell crank lever 89.

to rotate counterclockwise sufficiently to effect the disengagement of lever from the bar 93 thus permitting,

the spring 96 to move the bar 93 leftwardly against the stop 97.

Bar 93 will then, through its pivotal connection 93 with floating member 99, move said floating member 99 the path of the portion or" bar 106. Then, whenthe space band selector bar 119 (which is also selected in response to the add-fixed-space signal) is actuated in the direction of the arrow in the manner described in Patent No. 2,091,286, the slide member 112 and hail member 11 1 will be similarly actuated so that the shoulder 139 of member 114 will pick up the bar 106 and cause it to move .orwardly (or in a downward direction,

as viewed in Figs. 3, 4 and 5), it being recalled that bail 114 is normally biased clockwise by spring 115.. Pursuant to this movement of bar 106, the portion. thereof will engage portion 10 1of floating member 99 to rotate said member 99 counterclockwise about pivot 98 until shoulder 128 comes into latching engagement (Fig. with the latch lever 129 which is under the influence of spring 133. At the same time, the bar 102 is carried leftwardly, because of its pivotal articulation at 101 with member 99, to swing a blocking member 141 (Fig. 2), pivotally connected to bar 102, into the path of movement of the pawl 69 (as indicated by dotted line 142), thereby preventing the stepping of the tape 56 during the cycle. The forward movement of bar 106, just described, also acts to operate the bell crank 107, as previously mentioned, to release 'a spaceband 19. At the completion of the instant cycle, the bars 106 and 119 are returned to the rearward position (Fig. 3) by their respective springs.

As the slide 112 with the bail 114 is returned to its rearward position by the bar 106, the roller 117 is caused to ride on the surface of arm 108 to effect the switching of bail 114 (counterclockwise) from bar 106 to bar 121 whereupon the shoulder 143 is presented into cooper ative relation with the rear end of bar 121. A yield is provided for arm 108 by spring 109, which became effective at this time. Then, during the next ensuing cycle, the sensing of the same add-fixed-space code signal is repeated, due to the fact that the tape feed pawl 68 is blocked by the blocking member 141, and the setting of bars 75 and 81 is not disturbed, permitting the reselection of the spaceband pull bar 119. But this time the bar 106 is not reoperated. Instead, the bar 121 is caused to be actuated forwardly by the bail 114, thus causing, through the pivotal interconnection 122 and bell cranks 123 and 126, the bar 124 of the parallelogram device to be actuated. Bar 124 thereupon actuates the fixed-space (em, en or thin space) bell crank 127 to effectuate the release of the fixed-space matrix. Shoulder 143 may be undercut to maintain the bail 114 in its leftward position, against the action of spring 115, during the actuation of the bar 121.

Substantially simultaneously with the selection of the fixed space matrix in this manner, the bar 121, through its cam portion 135 effects the release of the floating member 99 to permit said member 99 to be restored to the normal position shown in Fig. 4. In this action, the cam portion 135 actuates the cam follower roller 134, and hence bar 131, leftwardly to cause the disengagement of latch lever 129 from the latch portion 128 of floating member 99, thus permitting member 99 to be rotated about pivot 98 under the influence of a spring 145 (Fig. 2) attached to the bar 102 which also causes bar 102 to be actuated rightwardly to swing the blocking member 141 clockwise out of the path of the pawl 69, thereby permitting the stepping of the tape 56 to be resumed. The rightward movement of the bar 102 is limited by the stop element 146 (Fig. 2).

As previously alluded to, in the preparation of tape for controlling the apparatus according to the present invention, it is not necessary to modify each spaceband signal in order to effect the release of a fixed-space matrix sequentially therewith, but it is only necessary to modify one spaceband signal (to convert said ordinary spaceband signal into an extraordinary spaceband signal) in order to effect the release of a fixed-space matrix with that spaceband and with all following it in the line. As is disclosed in said Patent No. 2,091,286 to H. L. Krum -et ah, the matrices and spacebands .are assembled in the of the elevator selector bar (one of the bars 136) to. effectuate the elevator operation, which comprises re-- leasing the elevator cam 147 (Fig. 2) for a single'cycle of rotation, as described in said Patent No. 2,091,286.

Also:mo-unted on the elevator cam shaft 148 (Fig. 2)

is a cam 149 which is adapted to cooperate with a vertical extension 151 on the bar 93, such that when the elevator shaft is rotated in response to the elevator signal, the earn 149 will actuate the bar 93 rightwardly, whereby the bar 93 is again brought into latching engagement with the latch lever 89, thereby restoring the arrangement according to the present invention to the normal condition shown in Fig. 3, preparatory to setting up the next line.

Although a preferred form of the invention has been disclosed and described, it is obvious that changes may be made in the details set forth without departing from the essentials of the invention:

What is claimed is:

1. In a linecasting and composing machine, means for releasing variable thickness space elements, means for releasing fixed thickness space elements, a record reading means, a permutation code selector controlled by said means, said pair of means parallelly disposed with respect to said selectable member, an actuating means comprising a swingable member operably relatable alternately to said pair of alternately operable means, said actuating means articulated to said selectable member, floating means for controlling said swingable member, and latchable means for controlling the effectiveness of said floating means, said latchable means controlled by said selector in response to predetermined record reading conditions, whereby said floating means is rendered eifective to control said swingable member to control the sequential operation of said pair of alternately operable means.

2. In a linecasting and composing machine, means for releasing certain elements, means for releasing other elements, a permutation code selector, a selectable member controlled by a predetermined permutative setting of said selector for controlling both of said means, a pair of alternately'operable means for operating said releasing means, said pair of means parallelly disposed with respect to said selectable member, one of said pair of alternately operable means operably associated with the means for releasing said certain elements and the other of said pair of alternately operable means operably associated with the means for releasing said other elements, an actuating means comprising a swingable member operably relatable alternately to said pair of alternately operable means, said actuating means articulated to said selectable member, control means for said swingable member, normally latched means for controlling the effectiveness of said control means, means governed by said selector in response to certain predetermined record reading conditions for unlatching said normally latched means, whereby said control means is rendered effective to control said swingable member to control the sequential operation of said pair of alternately operable means, elevator mechanism, and means governed by said elevator mechanism to restore said normally latched means to latched condition.

3. In a linecasting and composing machine, means for releasing certain elements, means for releasing other elements, a permutation codeselector, a selectable member controlled by a predetermined permutative setting of said selector for controlling both of said means, a pair of alternately operable means for operating said releasing means, said pair of means parallelly disposed with respect to said selectable member, one of said pair of alternately operable means operably associated with the means for releasing said certain elements and the other of said pair of alternately operable, means operably associated with the means for releasing said other elements, an

actuating means comprising a swingable member operably relatable alternately to said pair of alternately operable means, said actuating means articulated to said selectable member, control means for said swingable member, Said control means including a rotatable floating instrumentality, normally latched means for controlling the effectiveness of said control means, means governed by said selector in response to certain predetermined record reading conditions for unlatching said normally latched means, whereby said control means is rendered effective to control said swingable member to control the sequential operation of said pair of alternately operable means, other latching means effective upon the rotation of said instrumentality by said one of said alternately operable means for conditioning said control means for control of said other of said pair of alternately operable means, means carried by said other of said alternately operable means and eifective on said other latching means to facilitate the return of said control means to the condition for enabling the reactuation of said one of said alternately operable means by said swingable member, and means operative in response to other predetermined record reading conditions to reestablish the effectiveness of said normally latched means to hold said control means in said normally latched position.

4. In a linecasting and composing machine, means for releasing certain elements, means for releasing other elements, a permutation code selector, a selectable member controlled by a predetermined permutative setting of said selector for controlling both of said releasing means, a longitudinally slidable member articulated to said selectable member, a swingable bail member carried on said slidable member, a floating means for controlling said swingable member, latchable means controlled by said selector for controlling the effectiveness of said floating means, and a pair of bars juxtapositioned one on each side of said slidable member and arranged parallel to said selectable member, one of said pair of bars operably associated with the means for releasing said certain elements and the other of said pair of bars operably associated with the means for releasing said other elements, said pair of bars adapted to be acted upon alternatively by said swingable bail member under control of said floating means, whereby predetermined ones of said releasing means are actuated sequentially to eflect the sequential release of said elements.

References Cited in the file of this patent UNITED STATES PATENTS 954,023 Drewell Apr. 5, 1910 1,099,463 Muehleisen June 9, 1914 1,163,984 Drewell Dec. 15, 1915 1,763,425 Emery June 10, 1930 1,840,408 Pickett et al. Jan. 12, 1932 1,964,850 Hilpman July 3, 1934 1,996,081 Potts Apr. 2, 1935 2,059,250 Krum et a1. Nov. 3, 1936 2,091,286 Krum et al Aug. 31, 1937

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