US2908380A - Teletypesetter controlled mixer for typographical machine - Google Patents

Description

Get. 13, 1959 P. HILPMAN ETAL TELETYPE SETTER CONTROLLED MIXER FOR TYPOGRAPHICAL MACHINE Filed July 24, 1958 3 Sheets-Sheet 1 Ida,

INVENTORS 7 PAUL H/LPMAN BY WILLIAM A. M/LANESEJ'R.

ATTORNEY Oct. 13, 1959 P. HILPMAN ETAL TELETYPESETTER CONTROLLED MIXER FOR TYPOGRAPHICAL MACHINE Filed July 24, 1958 3 Sheets-Sheet 2 BEN-ail n 4 II www nkgi INVENTORS PAUL H/LPMAN BY WILLIAM A. MILANESEJ'R ZWJ f fli -AMA ATTORNEY United States Patent TELETYPESE'ITER CONTROLLED MIXER FOR TYPOGRAPHICAL MACHINE This invention relates to typographical composing machines of the general organization represented in U.'S'.

2,908,380 Patented Oct. 13, 1959 In the drawings:

Figure 1 is a' side elevational view, partially in cross section, of a portion of a Linotype machine equipped with the present invention; I

Figure 2 is an enlarged view similar to Figure 1, show v ing the upper portion thereof, with the parts in a diiferent shifted position; V

'Figure 3 is a front elevational view of the driving motor and clutch of the presentinvention; am-

Figure 4 is a'schematic circuit arrangement of the present invention. I V l 1 As shown in Figure 1, the machine is equipped with four superposed magazines 10a, 10b, 0c, and 10d, capable of being raised and loweredin the machine frame by operation of a crank handle 11*in order'to bring either the upper or lower pair of magazines into Letters Patent to O. Mergenthaler, No. 436,532, where in circulating matrices are released'from a magazine in the order in which their characters are to appear in print, the composed line transferred to the face of a mold, the mold filled with molten metal to form a typo-' graphical sl ug against the matiices,.and the matrices thereafter returned through distributing mechanism to the magazine from which they started.

More particularly, it relates to that type of machine known as a mixing machine, wherein matrices canbe selectively released from either of two magazines by operation of a single keyboard without raising or lowering the magazines, and wherein, moreover, after the casting operation has been completed the matrices are automatically returned and redistributed into-the proper channels of the magazine from which they were released. This type of machine is used prevalently for combining the regular ninety character text fonts used exclusively for composition of straight matter, and the special seventy-two character fonts used for the composition of head letter or display matter, and therefore, the present invention will be .described with reference to a mixing machine wherein the magazines are-arranged in superposed pairs, each pair comprising a ninety char acter magazine'and a seventy-two character magazine.

Inasmuch as a single keyboard is employed to control the release of the matrices. from two separate magazines having different numbers and spacings of matrix escapement devices, a shifting mechanism of one type or another is ordinarily provided to effect adjustment of the keyboard connections so that they will correspond to the escapements of the magazine carrying the desired font, and to effect adjustment of a movable throat section so that it will accommodate the matrices from either adjacent magazine and guide them into a 'channeled raceway commonto both magazines. .Onesuch shifting mechanism is fully described in U.S. Patent 2,667,265.

With the advent of typographical-composing machines equipped with automatic control units which automatically operate the machines in response to code perforations in a tape, it has, of course,'become desirable to operate the above mentioned shifting mechanism by the same tape responsive control units, thus making operation of mixing machines completely automatic.

operative relation with the assembler-entrance, indicated generally at 12, and the distributing mechanism (not-- shown).' The second and'fourth'magazines 10band 10dm'ay be of the regular or standard form and adapted to contain the ordinary ninety character text fonts whereas the first and third magazines 10c and 100 may'be of a different form and adapted to contain the special seventytwo character display fonts. The-assembler entrance 12 includes an upper throat section 13 to cooperate with the magazines 101: or 100,

I a lower partitioned bridge member 14 to cooperate with the magazine 10b or 10d, and an adjustable throat section 15 to cooperate with either the throat section 13 or the bridge member 14. Theadjustable throat section 15 is fastened to a horizontal rock shaft'16' journaled in the machine frame, which rock shaft is to engage the under edge of the crank arm 19, locatesthe throat section 15 in its rearwandly adjusted position; i.e. in registry with the bridge member 14. The throat section is locked in its difierent adjusted positions; and released preparatory to its adjustments by conventional, mechanism which is not. shown. (Such mechanism may be seen in the aforementioned US. Patent 2,667,265.),

In either of its adjusted positions, the throat section 15 is adapted to conduct thematrices released from the selected magazine intoa fixed vertically disposed channeled raceway 22 from which the matrices are directed to the assembler proper for composition in line.

Toward this end, it is the object of the present invention to provide improved automatic control means whereby the shifting mechanism of atypographical rnixing machine may be operated in response to. a code perforated 'tape. An important feature of the present invention is that it may be applied to the commercial automatically'operated typographical machine with only slight modification thereto.

' Other objects of the invention will be apparent from the following description which is made with, reference to the accompanying drawings.

Each of the several magazines is provided with matrix.

releasing escapements 23, the actuating devicesfor which include, generally, a series of fore-and-aft pivoted levers 24, a corresponding series'of actuating slides 25 carried by the throat section 15, and a series of small actuatingelements 26 mounted in the throat section.13 and op; erable by the slides 25; The levers 24 are controlled from a keyboard 29 through the medium of two sets of vertical reeds 30 and 31, slidably supported in an. adjustable frame 32, which is hinged at its top to the machine frame. The frame 32 is adjustable. together with the throat section 15 only, and not separately therefrom. Therefore, when the throat'section is in its rearward position (shown in Figure 1), in registry withthe bridge member 14, the reed frame is adjusted in its .rearward position, wherein the rearward set of reeds 31 is .in

operative alignment with the keybboard actuators 33, and

hence, matrices will be released from the magazine 10b and delivered for composition. When the throat section 15 is shifted into its forward position, in registry with the throat section 1 3 (Figured), the reed frame 32 is swung'in order to align the forward set of reeds 30 with the keyboard actuators" 33, whereby matrices will be released from the magazine a and deliveredfor composition, thus creating the mixed 'line mentioned above.

The adjustments of the throat section '15 and the reed frame 32 into either of their alternate positions are made by actuating a lever 34 in a manner to be hereinafter described. The lever 34 is fixed, at one end, 'to a rock shaft 35, and its other end is pivotally connected to a long rod 36 which extends vertically upward and is pivotally connected to the crank arm 19. The rock shaft 35 in addition carries another lever 39, and a second rock shaft 40 carries a lever 41 which is pivotally connected to the lever 39 by a link 42. Also fixed to the rock shaft 40 is a further lever 43, pivotally connected by link 44 to the lower end of the reed frame 32. It is, therefore, apparent that when the long rod 36 is raised to bring the throat section into registry with the throat section 13, the reed frame 32 will at the same time be swung backwardly in order that the reed set 30, rather than the reed set 31, may be operated by the keyboard actuators 33. i

As thus far described, the parts, their construction, and the manner in which they cooperate are substantially the same as describedin U.S. Patent 2,667,265. According to the present invention, the adjustments of the throat section 15 and the reed frame 32 are effected by a torque motor '45 which activates a shift connecting link 46 through a slip clutch 49. As may be seen clearly in Figure 3, the clutch members 50 frictionally engage a plate 51 sandwiched between them. An arm 53 projecting perpendicularly from the edge of plate 52, and fast thereto, pivotally supports the lower end of the shift connecting link 46. The upper end of the link 46, which is provided with an elongated slot 54, ispivotally connected to the joint between lever 34 and long rod 36, the pin 55 thereof fitting through the slot 54. The lost motion provided by the slot 54 serves as a time delay between activation of the motor 45 and the subsequent adjustment of the throat section 15, the reason for which will be mentioned below. By means of the present construction, should the mechanism for any reason become jammed, the clutch 49 will automatically slip, thus avoiding damage to the parts.

The actuating motor 45 is operated by a control unit 56 (the interior of which is presented by the circuit arrangement of Figure 4) which works in conjunction with a conventional tape operated control unit 59, thereby making the above described adjustments completely automatic. The tape unit 59 is provided with a forward activating switch 60 and a rearward activating switch 60r (the latter being indicated in Figure 4, only) and two selector bars 61 for actuating the switches in response to proper code perforations in the tape 62. A manually operated switch 63 is also provided whereby the operator, merely by depressing lever 63a, may shift the throat section and reed frame from whichever positions they are in to their alternate positions. The red and green signal lights R and G indicate which position the mechanism is in, green denoting the forward position and red denoting the rearward position. The signal lights are energized through two switches, a rearward limit'switch R.L. activating the red light, and a forward limit switch F.L. activating the green light. The limit switches themselves are operated by two screw heads 51r and 51 carried in the periphery of plate 51, each switch being provided with a roller which follows the contour of the plate edge. In addition to energizing the signal lights, a more important function of the limitswitches is stopping the motor 45 once the shift called for has been completed. This will be more fully described with reference to Figure 4. c

The abovementioned time delay which is afforded by the slot 54 of the shift connecting link 46 is an important feature of the present invention. As is well known, there is always a lag between the time that the code perforations on the tape 62 calling for a particular matrix are read by the unit 59, and the time that that matrix descends into the adjustable throat section '15. On the other hand, the reaction of the motor to the signal on the tape calling for an adjustment of throat section 15 is almost instantaneous. Hence, the time delay is provided in order to allow time for the last matrix or two, whose signals on the tape immediately precede the adjustment signal, to reach the throat section before it .moves.

Figure 4 shows the electrical circuits employed to carry out the operation of the invention as hereinbefore described. The circuits are shown in a straight or across-the-line form in which the contacts of a relay are shown separated from the relay coil which operates them and arranged in the circuits which they control. Thus it is possible to arrange each coil circuit in a straight line between parallel lines W and ,W representing the power source. 7 Y

In the across-the-line diagram the following relays will be found: v

FS-forward shift relay RS-rearward shift relay MSSmanual shift safety relay Y.I-I.--yield handle safety switch E.T. -end-of-tape safety switch T.T.-tight tape safety switch As indicated in Figure 4, the limit switchesRL. and R.L. are of the double throw type whose normal positions are represented by the solid line of the switch FL. and

the dotted line of the switch R.L., and which assume their alternate positions when acted upon by the screw heads 51f and 51r respectively. Since, at present, the parts are disposed as shown in Figure 1, both limit switches occupy their solid line positions, wherein the switch R.L. corn pletes a circuit energizing the red signal light R, thus indicating that the throat section 13 is in its rearward lo-' cation.

Now, when a forward shift signal is read on the tape 62, the selector bar 61 associated with the forward activating switch 601 is activated to close the switch, thereby energizing the forward shift relay coil FS, which results in the engagement of contacts PS1, PS3, FS5 and the separation of contacts PS2 and F84. The contacts PS3 complete a self-holding circuit for the coil PS. The contacts FSS complete a circuit energizing the stop magnet SM which acts immediately to disengage a clutch and arrest the tape before any further signals are read. The con tacts FS1 complete a circuit through the motor 45, contacts RS2, and the series field winding SF. of the motor, resulting in the energization of the motor and its rotation of the clutch 49 in a clockwise direction (in Figure 1). As soon as the clutch 49 begins to move,'the roller of switch R.L. rides off the screw head 51r, and the switch is allowed to return to its normal position (shown dotted), as a result of which, the signal light R goes off.

As mentioned hereinbefore, the initial rotation of the clutch 49 serves only to actuate the shift connecting link 46. It is not until the lower end of the slot 54 reaches arm 19. At the same time, the lever 34 is rotated, causing the reed frame to swing back and align the forward set of reeds with the keyboard actuators. When the throat section reaches its forward position, wherein further movement is prevented by the abutment of the crank arm 19 against the banking screw 20, the screw head 51 contacts the roller of the forward limit switch F.L., thereby moving the switch to its dotted line position (Figure 4), whereby the relay coil FS is deenergized and the contacts PS1 are separated to stop the motor 45. Contacts PS5 separate, as well, thus allowing reading of the tape to continue. Since the switch FL. is now being held in its dotted line position, the green signal light G is energized indicating that the throat section '13 is in its forward position.

In a similar manner to that just described, the closing of switch 601' by a rearward shift signal in the tape, will effect the adjustment of the throat section, by energizing the relay coil RS, thus engaging contacts RS1 to complete a circuit through the motor 45, contacts PS2, and the winding S.F. Note that the polarity of the motor is hereby reversed, and the clutch 49 will rotate in a counterclockwise direction. The time delay of slot 54 will, of course, be afiorded prior to the rearward shift operation as well as prior to the aforedescribed forward shift operation.

When neither relay coil FS nor relay coil RS is energized, a circuit is completed through contacts PS4 and RS4 to energize the manual shift safety relay coil MSS, thus engaging contacts MSSI. This leaves the operator free to manually effect the results just described merely by closing the switch 63 which will complete a circuit through the contacts M881 (and assuming the limit switches disposed in their solid line positions) rectifier Rf, relay coil F S and switch F.L. Should the limit switches be disposed in their dotted line positions, the circuit will be completed through rectifier Rr, relay coil RS, and switch R.L. Upon energization of either relay coil FS or RS, whether through the automatic or manual means, the relay coil M88 is deenergized, resulting in the separation of cont-act MSSl. Therefore, during energization of the motor 45, accidental closing of the manual switch 63 will have no effect, and the motor will complete its cycle of operation.

The contacts PS2 and RS2 are employed as a safety precaution in the event that for some reason (e.g. a short circuit) both relay coils FS and RS become energized at the same time. Since the contacts F82 and RS2 disengage when their respective relay coils are energized, the motor will never be energized through both of its energizing circuits at the same time.

In addition to contacts F85 and RS5, the usual safety features are provided for energizing the stop magnet SM and arresting the tape. The yield handle switch YH, the end-of-tape switch ET, and the tight-tape switch IT will close respectively should the assembling elevator encounter any undue resistance during its vertical travel, when the end of the coded tape moves through the unit 59, or should the tape tighten up within the unit to the point where it is in danger of breaking.

The invention has been shown and described in preferred form only and by way of example, but many variations and modifications may be made therein and in its mode of application which will still be comprised within its spirit. It is understood, therefore, that the invention is not limited to any specific form or embodiment, except insofar as such limitations are specified in the appended claims.

What is claimed is:

l. A tape operated typographical composing machine having two superposed magazines and an assembler throat section shiftable between a forward and a rearward position wherein said throat section cooperates with one or the other of said magazines, said machine comprising first and second selector bars actuated individually by discrete signals in the tape calling for the disposition of said throat section in its forward and rearward positions, first and second relay means responsive respectively to actuation of said first and second selector bars for arresting the tape, a reversible motor operable in forward and rearward directions respectively by said first and second relay means, a slip clutch associated with said motor, linkage means connecting said slip clutch to said throat section, said linkage means including a first link having an elongated slot attached to said clutch, and a second link having a pin slidably disposed in said slot attached to the throat shifting mechanism, whereby upon energization of said motor only said first link will be actuated initially until said pin traverses the length of said slot whereupon said second link and said throat section will be actuated, and first and second switch means operable respectively upon completion of the throat section shift in the forward and rearward direction to arrest the motor and to restart the tape.

2. A typographical composing machine as described in claim 1 having first and second signal lights for indicating the positions of said throat section, said signal lights being operable by said first and second switch means.

References Cited in the file of this patent UNITED STATES PATENTS 2,273,032. Goetz Feb. 17, 1942 2,399,999 Frolander May 7, 1946 2,667,265 Hilpnri'au Jan. 26, 1954 2,797,797 Gutzmer July 2, 1957 FOREIGN PATENTS 758,209 Great Britain Oct. 3, 1,956

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