US3117666A - Variable leading device for writing machines - Google Patents

Description

1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 4 Sheets-Sheet 1 'III FIG.

INVENTOR 650F615 J/l 5/105545 ATTORNEYS Jan. 14, 1964 G. J. H. SAUSELE 3,117,666

- VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 4 Sheets-Sheet 2 IE 67.! o. g I

5 'HO 5; 615 i we I I INV ENT OR 650E624 J14 5405.54 5

ATTORNEYS Jan. 14, 1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 v 4 Sheets-Sheet 3 INVENTOR 650265 J. /l 5405515 BY wflhzh ATTORNEYS Jan. 14, 1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE-FOR WRITING MACHINES Filed Dec. 14, 1961 4 SheetsShee1f. 4

'LlO INV EN TOR 6501665 JH 5405515 akzlb.

ATTORNEYS United States Patent "ice 3,117,666 non rsacrmnss George 3. dausele, New Providence, N.Ll., assignor to American Type Founders 60., Ina, Elizabeth, NJ, a corporation of Delaware Filed Bee. 14, 1%1, S-er. No. 159,219 7 Claims. (Cl. 197120) This invention relates to writing or composing machines and more particularly to line spacing or leading devices for incorporation into such machines.

Although the principles of the invention are applicable to a wide variety of text printing and reproducing rnachines, including typewriters, the invention finds especial adaptability and utility in connection with photo-typesetter systems and for convenience will be illustrated and described herein in connection with the photo-typesetter installation disclosed in my coending application Serial No. 686,233, filed September 25, 1957, Patent No. 3,082,670, granted March 26, 1963.

in these machines, normal line spacing is ordinarily effected as an incident to the return of the carriage upon the completion of a line of type. The pull of the carriage return mechanism acts through the ratcheting device which advances the sheet or film which receives the impression, so that the advance takes place during the earliest stages or" the carriage return operation, and the return or retraction or" the ratchet actuator to normal or idle position is effected by spring action at the moment the carriage trikes its stop means upon tis return to initial Writing osition for the start of another line of text. However, provision is also made for effecting an advance of the receiving medium according to the predetermined setting upon occasions when the ordinary carriage return operation is not pursued, as for example in the case where multiple or repeated loadings are desired; but in the operation of the photo-typesetter, sufiicient time must be allowed in the tape programming, for the recovery of the ratcheting. Thus, in keyboarding for the production of copy and/ or tape, it is the practice to strike the tabulatkey before using the line space or carriage return key.

But any increase in line spacing or lead ng can only be done by this means in exact multiples of the predetermined setting.

It is therefore the general object of the .presentinvention to rovide means by which additional increments of leading may be applied as by auxiliary advancing means actuated by the line space or carriage return trey, or in a photo-typesetter unit automatically by suitable signals set o in the control tape by means of actuation of such :eys in the recorder or lreyboard unit.

Thus, two settings of line space are provided, a primary ng a secondary setting; and it is possible 'by use of these novel features to record /1 point, 1 point, 2 point,

point, and 3 point increments of leading at any place key.

The invention in its preferred embodiment contemplates the provision of moms supplementing the usual line spacing device associated with the carriage return, by an auxiliary device by which additional leading in /2 point increments from zero up to the full value of the primary setting, may be attained.

Other objects and features of novelty will be apparent from tne following specification when read in connection with the accompanying drawings in which one embodiment of the invention is illustrated by way of example.

in the drawings:

FIGURE 1 is a fragmentary View of the upper portion Federated dart I14,

of the carriage of a typesetter machine embodying the principles of the invention, the view being mainly in rear elevation but with parts broken away for the sake of clearness of illustration;

FIGURE 2 is a view in elevation as seen from the righthand side of FEGURE l, but of course representing the left-hand side of the machine from the view-point of the operator at the keyboard, a portion of the character reproducing means being indicated fragnientarily in section;

EEGURE 3 is a view in elevation as seen from the lefthand side of FEGURE 1, that is, of the right-hand side of the machine as operated, and illustrating the secondary leading mechanism which comprises an essential part of the invention;

FEGURE 4- is a fragmentary enlarged view of the lefthand portion of FIGURE 1 showing the carriage displaced slightly fr in its returned, retracted, or initial position;

FIGURE 5 is a detail view in cross-section taken on line 55 of FIGURE 3;

FlGURE 6 is a fragmentary View taken generally from the left in ElGURE 2 and showing the primary leading mechanism mainly in elevation; and

FIGURE 7 is an exploded view of the major portion of the secondary leading mechanism, at least those parts which are carried by the carriage.

Reference is made to my above me; tioned co-pending application for the disclosure of writing or composing machines which may be considered as examples of those to which the present invention may be applied, although the invention in its broad scope may be used in connection with a wide variety of writing machines. in that patent a recording or keyboard machine for simultaneously preparing a typewritten copy of the composition and a punched tape record thereof, is shown at A; and a reproducing unit in the form of a photo-typesetter is indicated at B. The principles of the present invention may be applied to either of these instrumentalities.

The base framing of these units is designated in that application by the reference numeral 5%? and supports a keyboard 19B and a carriage E, which carriage is adapted to move a ong the frame in increments appropriate to the character width, letter and Word spacing, and justification modifications, as permitted by the escapement mechanism provided. The basic or general carriage construction and arrangement adapted for the typesetter unit, together with the early line spacing features, are well illustrated in FIGURES 30, 31, 32, -34 and 35 of that application; and FIGURES 1 and 2 of the present application will be readily recognized as being the respective counterparts of FIGURES 31 and 32 of that case. So that analogy may be quickly perceived between the basic structure of the present disclos 'e and that of the earlier application, the same or similar reference characters will be em loyed to designate many of the common parts. Thus, the carriage as a whole is indicated at F will be seen to comprise basically the box frame 216 which encloses the film f which in this embodiment constitutes the movable medium for receiving the i. -ages of the characters com the text of the composition.

The carriage F is supported for horizontal travel with respect to a base frame by means of the track bar 56 forming a part of said base frame. The carriage is guided and supported for movement along the tracl; bar as by means or" the rollers 56a, Soc, 56d, and c.

The box frame 23%; is provided with a cover plate 211 which is secured thereto as by means of the thumb screws 211A. in EEG RE 1 the cover plate 211 is broken away to disclose the principal operative portions of the interior. The transverse rotary shaft 52"" carries the wheels are which are provided with pin-pointed proiections 577 which embed themselves in the dim f and cause it to be fed 3 through increments determined by the stepped rotation of the shaft 575, to effect the leading or line spacing of the composition. By preference, two of these fee wheels 576 are provided on the shaft 575 and to accommodate film webs of different widths they may be made adjustable along the shaft.

The left-land end of the shaft as seen in FIGURE 1 is supported in a bearing member 64 The right-hand portion of the shaft 5'75 passes through the elongated bearing boss 61 and carries fixedly upon its end the hand wheel or knob 7% which may be graduated and is adapted to be mani ulated to secure a proper initial setting of the feed shaft position or to effect manual changes for whatever reason. Upon the right-hand end portion of the shaft 575 is secured the gear 628. Means for keeping track of the amount of film used is provided and takes the form of a counting mechanism indicated generally at 719 and secured to the frame as by means of the bracket 711. A pinion 712 actuates the counting device and .ieshes with the feed shaft gear 629, the device being so geared as to indicate film usage in inches.

A stub shaft e22 carried by a suitable portion of the carriage framing provides an axis for the series of pinions 621, 624, and another pinion, not shown, which is disposed behind the pinion 624 and which meshes with the gear 632. As more clearly disclosed in the co-pending application, the gear 632 is fixed upon an end of the shaft or trunnion member 566 which serves through certain frictional driving means to rotate the wind-up spool which receives the exposed film.

The gear 621 meshes with the film feed gear 62% and the gear 624 in turn meshes with and is driven by the pinion 625. This pinion 625 is fixed to a bushing 62:; which is freely rotatable upon the end of the shaft 627a. Also fixed to the bushing 626 is the ratchet wheel 662.

The shaft 627:: rotates in suitable bearings carried by the end walls of the box frame 214 and projects through the left-hand side of the frame as shown in FIGURE 1. Just inwardly of the ratchet wheel 652 there is a tape drum 659 which is pinned to the shaft 627a as at 63. Between the flanged drum 659 and the right-hand wall of the box frame 21%) as viewed in FIGURE 1, there is disposed the notched annular indexing control disc 655. This disc is mounted upon a fixed hub of any suitable construction carried by or formed upon the wall of the box frame 210 and the disc 655 may be manually rotated upon such a support concentrically with the shaft 627a.

Returning now to the drum 65%, it will be seen that the carriage return tape 61% is adapted to be wound about this drum, the major portion of the tape being guided about a suitable pulley 617 and extending across the machine toward the left as in FIGURE 1 where the other end portion is ultimately wound upon a power-driven tapereel such as the one illustrated at dill in the co-pending application. This carriagereturn tape winding reel is brought into action by a clutch which is actuated as a result of the depression of the line space or carriage return key on the keyboard of the machine. Reference is also made at this point to the Blodgett Patent No. 2,700,- 447 for certain of the basic structure of the present machines, but which does not constitute novelty in the present invention.

Although the principles of the invention are applicable to diiferent kinds of composing devices including impact machines such as t pewriters, and since the illustrative embodiment is set up as a part of a photo-composing unit according to my above mentioned application, the character reproducing means adapted to function at a relatively fixed point is disclosed in FlGURE 2 of the drawings as an optical projecting s stem. This system includes the projecting lens 22% fixed in an end of an inner sliding member 217 of the lens tube installation 2. .5 mounted on or forming a part of the base frame assembly. The end wall of the tube 2-315 has an opening which is aligned with the opening 214 in the track bar as and the opening 213 in the front wall of the box frame 214). The film or other sensitive web suggested at 1, moves along the backing plate 211 at the rear of the frame 219 and receives the image of a selected character along the light beam, the axis of which is indicated by the line L.

The right-hand flange 65 of the drum 6%, as viewed in FlGURE l, and as een more clearly in FIGURE 6 of the drawings, is provided with two radial extensions or enlargements 66 and 67. The enlargement 66 provides a pivot for the pawl 672 the tongue of which is adapted to engage the teeth of the ratchet wheel sea; and the enlargement 67 is provided with a pair of openings, either of which may form an anchorage for the spring 674a which serves to urge the pawl 672 into engagement wit the ratchet wheel. The opposite flange 69 of the drum 6513 carries a radially projecting stop lug 675, the angular movement of which is restricted by certain stop elements, which will be described presently, in order to gauge the rotary movement of the drum and thus of the ratchet 652. to conform to that required to advance the sheet or film the predetermined amount. The rotatably adjustable disc 655 carries an embossment in the form of the stop block 677 and the disc is settable about its axis to position the stop 677 in the proper angular displacement to limit the movement of the drum.

in this connection, a small box-like frame 685 is fixed to the frame 219 as by means of the screws 71 and as most clearly shown in FIGURE 6 of the drawings, a spring-retracted manually-operable pin or plug 636 is slidable in the frame 685. A key element 638 is fixed to the plug 686 by means of the pin '72 and is provided with a head or blade portion 6% which is adapted to enter selected ones of the notches 680 of the disc 655. A coil spring 691 bears against the key element 688 and serves to urge the blade 6% into the selected notch when the pin 686 is released by the operator.

A fixed stop member 695 surmounts the frame 685 and this serves as the opposite limiting stop element for the stop projection 675 carried by the drum, the drum and its stop member 675 being permitted a rotary movement between the abutment 6?5 which it touches in FIGURE 2 and the adjustable stop abutment 677 carried by the disc 655. A resilient holding blade or dog 6% is secured to the frame 635 as by means of the screw 77 and prevents backward movement of the ratchet 662 when the driving pawl 672 is not propelling the ratchet.

In order to return the drum to its initial position in a counterclockwise direction as viewed in FIGURE 2, spring means are provided which are clearly disclosed in FIGURES 1 and 4 of the drawings. A pin 8% extendns from the shaft 627a at its left-hand portion and this pin is adapted to enter one of the slots 81 which are formed in the collar 65?, and a pin 83 enters an opening in the right-hand end of the collar 659 and serves an anchorage for the loop 84 formed in the left-hand end of the coil spring 657a which surrounds the shaft 2'7a and is provided with another loop 85 at its oppos te end by which it is secured to the anchoring pin 65%. which extends from the inner Wall of the frame 215. It will be seen that by an appropriate winding of the coil spring and setting of the collar 659 with respect to the pin S-il in the shaft 627a the desired tension may be applied for returning the shaft and the drum to initial position against the basic stop abutment 695 upon release or tension in the carriage return tape ltl.

It will thus be seen that the above described mechanism will allord the primary line spacing or leading, particularly when the normal carriage return movement is effected. The tape 61% will be pulled in the direc tion of the arrow in FlGURE 1 and will rotate the drum clockwise as viewed in FIGURE 2, the pawl 672 rotating the ratchet 662 during its permitted travel and thus through the gearing 625='62tl advance the film feed ing shaft 575' an increment corresponding to the setting of the key or blade in the appropriate notches of the gauging disc 655' The stop projection 675 of the drum will rotate in the example shown in FlGURE 2 through more than 270 until it strikes the abutment 677 carried by the disc 655 whereupon the line spacing movement is halted and when the pull on the tape is released the mechanism with the exception of the ratchet wheel and the gearing, will retract to the initial posi ion as in dicated in FEGURE 2 where the projection 6'75 abuts the left-hand face of the fixed stop The notches 689 in the disc 655 are so spaced as to represent successive settings of increments of /2 point each and there are preferably sutlicient notches to at least provide for line spacing or leading of from 4 to 16 points.

It will of course be understood that once a setting of the key 690 in the appropriate notch 63% is made, the only repetition of leading capable of being accomplished by the mechanism just described, must be in exact multiples of the initial leading.

In order to provide for supplemental variable leading, which can be accomplished automatically in the type of machine illustrated, a secondary setting device is pro vided and this novel development is best illustrated in FIGURES 3, 4, 5 and 7 of the drawings, and may of course also be seen at the left-hand side of FIGURE 1.

Upon the protruding end of the shaft 627:: at the left-hand side of FIGURES l and 4 (actually the righthand side of the machine as the operator faces it) is fixed the line space indexing disc 1% of the auxiliary setting device, the disc proper having a hub lull through which the set screw 192 is threaded in order to fix it rigidly to the shaft.

Next upon the shaft end there is disposed the line space cam and stop member 1%, this element eing best shown in FIGURES 3 and 7 of the drawings as comprising a circular plate having a wing-like extension 1%, the extension having a fiat abutment face in? and an inclined or chamfered cam face 119% at the opopsite side thereof. A pin lit) has a force fit through an opening in the wing 1th) and is adapted to be selectively intro duced into one of the plurality of holes 112 formed in the adjacent face of the disc 1%. A tubular extension 115 is formed on the member ill-5 to form a cup or pocket for the reception of the coil spring 115 which is adapted to be compressed within the pocket of the tubular part 115 by means of the washer 118 which in turn is retained by the head of the screw 12-53 which is adapted to be threaded into the opening 12-1 in the end or" the shaft 627a.

if desired, the outer surface of the tubular projection 15 of the settabie earn member A5 may be knurled for ready manipulation in pul 'ig it outward against the force of the spring 116 and tL it to introduce the pin in a selected one of the holes llZ.

The spacing of the holes 122 in the face of tile disc 1% represents increments of movement of the sheet or film through a distance of /2 point. Thus, as indicated by the gauge markings in FlGUrtE 3 of the drawings, settings oi from /2 point to about 16 points are pos: sible by means of his supplemental setting device.

Abutting and secured to the end face of the track bar or rail 56 which is a fixed part of the base of the machine is the casting 325. This rigid attachment of the casting to the rail may be efiected by means of the screws 126 as shown clearly in FEGURE 3 and the casting, incidentally, is provided with a bracket extension to which one end of the rack is secured as by means of the screw 434a. This rack 483:: is not directly involved in the specific construction and arrangement of the present invention and it is suilicient to state that it has to do with the proportional movement f the ulti e carriage F and box frame 2 as related to a primary car which is received for reciprocating movement by the main base frame 5%) of the machine.

As best shown in FIGURES 3 and 5, the block or casting 1'25 is thickened considerably at a portion 127 which is approximately in line with the axis of the shaft 62% and is also provided with a notched or recessed portion 128 inwardly of this thickened part. Within this opening or notch 12? there is disposed a stop pawl element 131? mounted for pivotal movement about the screw 131. Forward pivotal movement of the pawl member is limited by the plate or strap 132 secured to the member 35.25 as by means of the screws 133. A socket or recess 135 is drilled in the thickened portion 127 of the member 125 rearwardly of the recess 129 and a registering indentation or recess 136 is formed in the rear face of the pawl member 13 A coil compression spring 139 is inserted in these sockets or recesses and serves to urge the pawl 13% forwardly toward the stop plate 32 as shown in the solid line position in FlGURE 5. The pawl can be retracted to the dotted line position against the urging of the spring 139,

The head 14-9 of the pawl member 13% has a forward extension toward the marginal face of the disc 1% and is adapted to be abutted by the hat face it)? of the pro jection Isl-6 extending from the settable cam and stop member 15. 5. One corner of the head 14% of the pawl 13% may be chamfered as at 142 for a purpose to be described later.

It should be noted that the pawl 13% is carried by a fixed portion of the frame of the writing machine since the block 125 is rigidly fixed to the track bar 56 upon which the carriage F, 216 rolls. On the other hand, the secondary leading parts ltllll2 carried by the shaft 627:: move with the carriage. Thus, in the position shown in FIGURE 1 the carriage is at its retracted initial position preparatory to typing a line, whereas in FIGURE 4 the carriage is indicated as being at a point displaced from its initial point of rest wherein the head 149 of the pawl 136 is out of the path of rotation of the projection 1% on the cam and stop member 1%. Thus, it will be readily seen that during the normal actuation of the primary line space or leading feature in coniunction with the regular carriage return operation, the paper or him advance accomplished by the controlled rotation of the ratchet takes place according to the ambit of movement of the stop projection 675 on the tape drum, between the fixed stops 6% and the adjustable stop s77 carried by the disc 65%, and is not affected by the secondary leading mechanism.

Sf course, during this movement, shaft 627:; and the secondary leading mechanism ltlt l2ll carried thereby will rotate respectively in the directions of the arrows b and c. See FIGURES l and 3 respectively.) However, this occurs wire fixed and movable secondary leading parts are displaced from each other as shown in FIGURE 4 of the drawings. return or" the caring: to its initial or rest position the cam and stop element will return to the position shown in Flt?- URE l when the carriage is halted, the retractive movement of the primary leading parts including the shaft 627a will cause the secondary parts lilll2tl to ice direction indicated by the iove in the counterclock arrow d in 3 an thus the sloping cam surface 1% will contact the charnfcred edge of the head l t-ll of the pawl 139 and slide past the pawl, the latter being displaced during this movement to the dotted line position shown in FIGURE 5. Thus, the parts Hill-42d will slip past the pawl 13%) and resume the position such as sho vn in FEGURE 3.

Now, let us assume that in addition to the primary leading operation efiected by the apparatus shown in FIG- URES 2 and 6 of the drawings and also at the right-hand side of Flt? RE 1, it is desired to increase the line spacing or learn. 5 by a predetermined amount. This must be accompli bed by the use of the secondary leading mechanism shown in FIGURES 37 and at the left-hand side of FIGURE 1, when it is in the vicinity of the rest or return position of the carriage such as shown in Fl 7 URE 1 of the drawings. At any rate, it could not be accomplished if the carriage had advanced more than say two word spaces. In fact, it has been found that the operation may be accomplished best if the carriage has been displaced by keyboarding two word spaces before the line space key is pressed.

Assuming that the showing in FIGURE 3 is at the condition of rest, the member 1E5, by manipulation of the extended tubular portion 115 may be pulled out against the resistance of the coil spring 11% and rotated to insert the pin 11% into any selected one of the holes 112 depending upon the additional leading desired accor rig to the /2 point increments on the dial or disc tea. The chosen setting shown in FIGURE 3 is of 3 points, the flat stop face 167 of the radial projection 1% falling between the designation 3 and the position where the designation 4 would occur.

With the parts in the position described, the depression of the line space key (or the carriage return key in certain machines) the tape 61%? will be pulled and the drum 65$ rotated, thus advancing the ratchet 662 and through the described gearing the paper or film, but this advance can only be to the extent of the setting of the part 195 with respect to the disc 1%, for example, for a distance of 3 points. Upon rotation of the mechanism together with the shaft 627a the disc 1% and the attached adjustable cam and stop member 195 will rotate in the direction of the arrow c until the stop face 1%? of the projection 1% abuts the left-hand face of the head 1% f the pawl 530. Thus, if we assume that the primary leading arrangement of FIGURE 2 has been set by the appropriate rotation of the disc 653 to efiect a spacing of 14 points, and the secondary setting as shown in FIG- URE 3 is set for 3 points, then the total leading accomplished by both settings would be 17 points. It is to be noted that in no case can the secondary leading setting be more than that of the primary setting. Otherwise, the stop member 675 or" the drum 6% would strike the adjustable stop 677 before the stop projection 1% of the secondary leading mechanism abutted the pawl 1349, and the effect would be a mere repetition of the primary leading operation which could be accomplished by tabulating and pressing the carriage return key after the usual initial carriage return and leading operation.

There has thus been provided by the present invention ingenious means for accomplishing automatic additional variable leading which is particularly useful for incorporation in photo-typesetting systems of the class described wherein both keyboarding machines and automatic tape actuated machines are used, but which may be adapted for use in many types of movable carriage Writing machines.

It will be understood that various changes and modifications may be made in the embodiment illustrated and described herein without departing from the scope of the invention as defined by the subjoined claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

l. A machine for producing type composition on a sheet, said machine comprising a supporting frame, a car riage mounted on said frame for progressive step-by-step escapement movement therealong in a given direction and for positive return movement to retracted position as for the composing of a new line of text, character reproducing means mounted on said frame and adapted to function at a relatively fixed point thereon, sheet supporting means carried by said carriage and adapted to be moved horizontally therewith to move a sheet past said reproducing means to receive character images successively to produce the line of composition, means on said carriage operatively connected with said sheet supporting means and actuating the latter for feeding said sheet vertically for the reception or" the succeeding line of composition, actuating means for said feeding means, a rotary device m nted on said carriage with its axis parallel with the length of the carriage and having a one-way driving connection with said sheet feeding means, means connecting said actuating means with said rotary device to rotate it in the driving direction, a stop projection carried by said rotary device spaced radially of and adjustably secured circumferentially of said rotary device to partake of its rotary movement, and disposed to rotate in a plane prependicular to the axis of said rotary device, and a stop abutment mounted directly on said supporting frame and projecting from said frame in a direction longitudii ry of the length of said carriage and into the path of rotation of said stop projection only when said carriage is adjacent the limit of its return movement, for limiting the extent of angular movement of said rotary device and thus the extent of movement of the sheet feeding member according to the desired line spacing,

2. The machine as set forth in claim 1 in which means are provided whereby said stop projection is manually adjustable circumferentially relative to the basic structure of the rotary device to vary the extent of rotation of said device and thus the movement of the vertical sheet feed, and in which said rotary device comprises a spring-restrained rock shaft to which is fixed said driving connecton and a graduated disc having an annular series of openings therein, said stop projection comprising an element coaxial with said shaft and disc and having a radial arm adapted to contact said stop abutment, and means for connecting said coaxial element to said disc in any selected one of a plurality of angular positions, said last named means comprising a pin carried by said element and insertable in one of said openings in the disc, and resiliently yieldable means urging said element into contact with said disc.

3. A machine for producing type composition on a sheet, said machine comprising a supporting frame, a carriage mounted on said frame for progressive step-bystep escapement movement therealong in a given direction and for positive return movement to retracted position as for Lh composing of a new line of text, character reproducing means mounted on said frame and adapted to function at a relatively fixed point thereon, sheet supporting means carried by said carriage and adapted to be moved horizontally therewith to move a sheet past said reproducing means to receive character images successively to produce the line of composition, means on said carriage operatively connected with said sheet supporting means and actuating the latter for feeding said sheet vert cally for the reception of the succeeding line of composition, actuating means for said feeding means, a rotary device mounted on said carriage and having a one-way driving connection with said sheet feeding means, means connecting said actuating means with said rotary device to rotate it in the o -ving direction, spring means for urgin said rotary device toward retracted position, a first stop projection on said rotary device, a first stop abutment on said carriage adapted to be contacted by said first stop projection to limit the total angular movement of said rotary device upon any single operation of said actuating means regardless of the position of said carriage, a second stop projection carried by said rotary device, and a second stop abutment on said supporting frame and disposed in the path or" movement of said second stop projection and operative to limit the movement of said rotary device only when the carriage is adjacent its retracted or returned position, a return abutment adapted to be contacted by one of said stop projections to determine the zero position of the line space feed of the sheet under the urging of the spring retracting means, manually settable means for said first-named stop abutment for predetermining the total extent of movement permitted the device, and manually settable means for adjusting the seocnd-named stop projection with reference to sa d rotary device.

4. A machine for producing type composition on a sheet, saic machine comprising a supporting frame, a

carriage mounted on said frame for progressive step-bystep escapement movement therealong in a given direction and for positive return movement to retracted position as for the composing of a new line of text, character reproducing means mounted on said frame and adapted to function at a relatively fixed point thereon, sheet supporting means carried by said carriage and adapted to be moved horizontally therewith to move a sheet past said reproducing means to receive character images successively to produce the line of composition, means on said carriage operatively connected with said sheet supporting means and actuating the latter for feeding said sheet vertically for the reception of the suceeding line of composition, carriage return mechanism in said machine and actuating means for said carriage return mechanism, means associated with said carriage return mechanism and adapted to be actuated concomitantly with the carriage return mechanism for effecting a predetermined vertical feed of said sheet, means for limiting the action of said feeding means to a predetermined amount for normal line spacing at any time that the carriage is occupying a position remote from its retracted or returned position, and similar means for limiting the action of the feeding means to an additional independently predetermined vertical feed of the sheet only when said carriage is adjacent its retracted or returned position and thus without carriage return.

5. A machine for producing type composition on a sheet, said machine comprising a supporting frame, a carriage mounted on said frame for progressive step-bystep escapement movement therealong in a given direction and for positive return movement to retracted position as for the composing of a new line of text, character re producing means mounted on said frame and adapted to function at a relatively fixed point thereon, sheet supporting means carried by said carriage and adapted to be moved horizontally therewith to move a sheet past said reproducing means to receive character images successively to produce the line of composition, means on said carriage operatively connected with said sheet supporting means and actuating the latter for feeding said sheet vertically for the reception of the succeeding line of composition, carriage return mechanism in said machine and actuating means for said carriage return mechanism, means associated with said carriage return mechanism and adapted to be actuated concomitantly with the carriage return mechanism for effecting a predetermined vertical feed of said sheet, means for limiting the action of said feeding means to a predetermined amount for normal line spacing at any time that the carriage is occupying a position remote from its retracted or returned position, said last named means comprising a rotary device on said carriage and an adjustable stop abutment also on said carriage for limiting the rotary movement of said device for normal line space feed, a stop member carried by said rotary device and means for efiecting a relative rotary adjustment between said rotary means and said stop member, and a second stop abutment, said second stop abutment carried by said supporting frame and disposed in the path of said stop member only when said carriage is in retracted or returned position, said last named stop abutment being yieldable upon contact by said stop member upon return movement of the latter during retraction of the rotary member upon return of the carriage and after a normal line space movement, to permit the return movement of said stop member. 7

6. The machine as set forth in claim 5 in which said stop member comprises a radial arm extending from the axis of said device and having a fiat abutting surface on the forward side thereof and an inclined surface on the rear side thereof, in which said second named stop abutment comprises a spring-urged element adapted to be abutted by the flat face of said arm when the latteris moved in the feed direction when the carriage is adjacent retracted or returned position, and yieldably displaced by the inclined rear face of said second stop abutment upon return movement of the arm at said retracted or returned position after movement of the arm beyond said abutment during normal line space feed stroke of the device effected prior to carriage return.

7. A machine for producing type composition on a sheet, said machine comprising a supporting frame, a carriage mounted on said frame for progressive step-bystep escapement movement therealong in a given direction and for positive return movement to retracted position as for the composing of a new line of text, character reproducing means mounted on said frame and adapted to function at a relatively fixed point thereon, sheet supporting means carried by said carriage and adapted to be moved horizontally therewith to move a sheet past said reproducing means to receive character images successively to produce the line of composition, means on said carriage operatively connected with said sheet supporting means and actuating the latter for feeding said sheet vertically for the reception of the succeeding line of composition, actuating means for said feeding means, a rock shaft mounted on bearings on the carriage and extending longitudinally of said carriage, a ratcheting de vice fixed to said shaft adjacent one end thereof at one end of the carriage, a ratchet Wheel adapted to be rotated in one direction by said ratcheting device, operative connections between said ratchet wheel and said sheet feeding means, means connecting said actuating means with said ratcheting device to rotate it in the driving direction to an extent governing a predetermined movement of said sheet feeding means, a stop projection extending radially from said shaft near the opposite end thereof and at the opposite end of said carriage, means for the setting of said stop projection at selected positions circumferentially of said shaft, a stop abutment on said supporting frame carried directly by said supporting frame and disposed in the path of movement of said stop projection, only when the carriage and said stop projection carried thereby are in substantially fully returned position, to gauge a supplemental rotative movement of said shaft and said sheet feeding means, both the stop projection and the stop abutment being of an extent longitudinally of the carriage which is but a minor fraction of the length of said carriage and any departure from at least partial registry, as when the carriage is in a fully returned position or within a few letter spaces thereof, will render said gauging function inoperative.

References Cited in the file of this patent UNITED STATES PATENTS 1,095,573 Henning May 5, 1914 2,098,319 Thompson Nov. 9, 1937 2,262,676 Helmond Nov. 11, 1941 2,395,763 Sagner Feb. 26, 1946 FOREIGN PATENTS 753,956 Germany Mar, 8, 1954

Claims (1)

1. A MACHINE FOR PRODUCING TYPE COMPOSITION ON A SHEET, SAID MACHINE COMPRISING A SUPPORTING FRAME, A CAR RIAGE MOUNTED ON SAID FRAME FOR PROGRESSIVE STEP-BY-STEP ESCAPEMENT MOVEMENT THEREALONG IN A GIVEN DIRECTION AND FOR POSITIVE RETURN MOVEMENT TO RETRACTED POSITION AS FOR THE COMPOSING OF A NEW LINE OF TEXT, CHARACTER REPRODUCING MEANS MOUNTED ON SAID FRAME AND ADAPTED TO FUNCTION AT A RELATIVELY FIXED POINT THEREON, SHEET SUPPORTING MEANS CARRIED BY SAID CARRIAGE AND ADAPTED TO BE MOVED HORIZONTALLY THEREWITH TO MOVE A SHEET PAST SAID REPRODUCING MEANS TO RECEIVE CHARACTER IMAGES SUCCESSIVELY TO PRODUCE THE LINE OF COMPOSITION, MEANS ON SAID CARRIAGE OPERATIVELY CONNECTED WITH SAID SHEET SUPPORTING MEANS AND ACTUATING THE LATTER FOR FEEDING SAID SHEET VERTICALLY FOR THE RECEPTION OF THE SUCCEEDING LINE OF COMPOSITION, ACTUATING MEANS FOR SAID FEEDING MEANS, A ROTARY DEVICE MOUNTED ON SAID CARRIAGE WITH ITS AXIS PARALLEL WITH THE LENGTH OF THE CARRIAGE AND HAVING A ONE-WAY DRIVING CONNECTION WITH SAID SHEET FEEDING MEANS, MEANS CONNECTING SAID ACTUATING MEANS WITH SAID ROTARY DEVICE TO ROTATE IT IN THE DRIVING DIRECTION, A STOP PROJECTION CARRIED BY SAID ROTARY DEVICE SPACED RADIALLY OF AND ADJUSTABLY SECURED CIRCUMFERENTIALLY OF SAID ROTARY DEVICE TO PARTAKE OF ITS ROTARY MOVEMENT, AND DISPOSED TO ROTATE IN A PLANE PERPENDICULAR TO THE AXIS OF SAID ROTARY DEVICE, AND A STOP ABUTMENT MOUNTED DIRECTLY ON SAID SUPPORTING FRAME AND PROJECTING FROM SAID FRAME IN A DIRECTION LONGITUDINALLY OF THE LENGTH OF SAID CARRIAGE AND INTO THE PATH OF ROTATION OF SAID STOP PROJECTION ONLY WHEN SAID CARRIAGE IS ADJACENT THE LIMIT OF ITS RETURN MOVEMENT, FOR LIMITING THE EXTENT OF ANGULAR MOVEMENT OF SAID ROTARY DEVICE AND THUS THE EXTENT OF MOVEMENT OF THE SHEET FEEDING MEMBER ACCORDING TO THE DESIRED LINE SPACING.

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