US2076864A - Printing telegraph apparatus - Google Patents

Printing telegraph apparatus Download PDF

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US2076864A
US2076864A US735094A US73509434A US2076864A US 2076864 A US2076864 A US 2076864A US 735094 A US735094 A US 735094A US 73509434 A US73509434 A US 73509434A US 2076864 A US2076864 A US 2076864A
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carriage
spacing
lever
character
pawls
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US735094A
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Albert H Reiber
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AT&T Teletype Corp
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Teletype Corp
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Priority claimed from US735110A external-priority patent/US2023121A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16Apparatus or circuits at the receiving end
    • H04L17/22Apparatus or circuits at the receiving end using mechanical translation and type-bar printing

Definitions

  • the present invention relates to printing telegraph apparatus and more particularly to improvements in tabulating mechanisms therefor.
  • a feature of the invention resides in enhancing the speed of movement of the type carriage in effecting the tabulating function, during which operation the type carriage will be spaced continuously at a speed which is three times that of normal spacing.
  • a printing telegraph apparatus of a tabulator bar which extends across the front of the machine and is pivotally carried by brackets and capable of swinging toward and away from the type carriage.
  • the tabulator bar carries a number of adjustable stop members which determine the positions at which the type carriage comes to rest after spacing during the tabulating cycle.
  • the spacing mechanism of theprintingapparatus comprises a three-toothed ratchet adapted to cooperate with a pair of pawls which are actuated by the printing bail to function as an escapement mechanism so that, upon each revolution 30 of the main shaft, the spacing worm gear associated with the spacing ratchet is permitted to rotate one-third of a revolution.
  • a series of function levers is provided which operate selectively in accordance with the setting of a series of selector vanes.
  • a tabulating function lever which, when selected, is drawn forward under spring tension.
  • the rear extension of the function lever rises and thereby lifts the rear end of a horizontal member.
  • the rear end of this horizontal member is lifted, it lifts the upper space pawl out of engagement with the tooth of the spacing ratchet, atWhich time the front end of said horizontal member is lowered thereby unlatching the tabulating bar to permit the latter to be rotated by its spring toward the type carriage.
  • Fig. l is a partial front elevation of the printing apparatus showing the application of the tabulating mechanism thereto;
  • Fig. 2 is a perspective view of the tabulating mechanism applied to said printing apparatus
  • Fig. 3 is a transverse cross-sectional View of the printer taken approximately through the vertical center line of Fig. 1;
  • Fig. 4 is a sectional view taken on line 4-4 of Fig. 3;
  • Fig. 5 is a detail rear elevation of the spacing mechanism of the printing apparatus.
  • Fig. 6 is a sectional plan View of the spacing mechanism.
  • a printing apparatus to which the tabulating mechanism of the present invention is applied comprises a typing unit (shown generaly in section in Fig. 3) which includes a primary selecting mechanism indicated generally as ll (Fig. 6) which is of the sword-and-T type disclosed in U. S. Patent No. 1,745,633 to S. Morton et al. (fully disclosed in the first mentioned patent), and a. secondary selector or selector vane assembly indicated generally as Ill.
  • the selector vane assembly l2 controls through a series of bell cranks l3 (Fig. l) a corresponding series of curved code bars 4 carried in a movable type carriage.
  • this type carriage, indicated generally as I5 is movable longitudinally in respect to a stationary platen indicated generally as I6 (Fig. 3).
  • 5 also carries a ribbon feed mechanism indicated generally as H.
  • a motor I8 supplies power through gear I! to a main operating shaft 2
  • power is communicated from the motor to an operating cam assembly through a grab clutch such as 25.
  • Pinned portion 24 of grab clutch 25 constantly rotates with the shaft 2
  • Portion 24 is cooperatively engaged with the splined portion 26 when throw-out lever 21 is operated in timed relation with the reception of code signals.
  • the spacing mechanism 22 which will be described more in detail hereinafter, controls through gear 28, shaft 29, gear 3
  • function bar 34 is actuated selectively in the manner described in Patent No. 1,904,164 so as to permit spring 35 to rotate lever 36 suddenly against stop 31 to raise, through bell crank 38, portion 39 of grab clutch 4
  • Carriage return mechanism 33 is thereupon permitted, due to the energy stored up therein, to return the carriage
  • a rocking shaft 42 Positioned parallel to the main operating shaft 2
  • the printing bail 43 which is actuated by a printing spring (not shown) in proper timed relation in the operative cycle, functions to reciprocate a pull bar operating member 44 to cause the operation of a type bar, as clearly described in the aforementioned patent.
  • the selector vanes as set forth in Patent No. 1,904,164 control a series of function levers among which are provided especially for accomplishing the object of the present invention is a tabulating function lever 45 which like the other function levers is pivoted on a common pivot rod 46 and is assembled in a slot in the function lever comb 41.
  • This function lever 45 like the rest of the function levers of the series, is provided with an individual spring 48 tensioned between it and the printer frame which tends to rotate the function lever 45 about pivot 46 but, as clearly set forth in Patent No. 1,904,164, is restrained by the function lever bail 40 acting through rod 50 on arm 60.
  • which comprises escapement ratchet 52 and escapement worm 53 which are integral therewith.
  • is operably connected to the hub of a disc 54 by means of interengaging tongue and groove members 55.
  • Collar 56 is pinned to main shaft 2
  • disc 51 of frictional material, for example, felt.
  • ratchet 52 is provided with three teeth or notches 6
  • the escapement mechanism comprises levers 62 and 63, pivotally mounted on bail shaft 42, and lever 64 adjustably fixed to printing bail 43.
  • Spring 65 normally tends to rotate levers 62 and 63 in opposite directions, since it is common to both levers.
  • Lever 62 is normally urged by spring 65 in a counterclockwise direction so that laterally disposed end 66 engages tooth 6
  • Lever 63 is normally held out of engagement with ratchet 52 against the tension of spring 65 by the action of lever 64 against laterally disposed end 61.
  • Lever 64 is pivotally connected to printing bail 43 at 68 and is provided at 69 with a slot and screw adjusting means, whereby the correct rela tive position of escapement levers 62 and 63 with respect to ratchet 52 may be determined.
  • the spacing operation occurs immediately following or subsequent to the printing of a character in the following manner.
  • lever 64 Upon the printing of a character, lever 64 is caused to rotate slightly in a clockwise direction with printing bail 43 which moves clockwise about the axis of bail shaft 42, thereby transferring this motion to lever 62 through its laterally disposed end 1
  • Ratchet 52 is thus restrained from rotation by lever 63 until the completion of the printing of a character at which time printing direction due to the action of lever 64 on end- 61 thereof, thereby disengaging end 12 of lever 63 from tooth 6
  • Worm 53 and ratchet 52 are integrally connected to sleeve 5
  • Worm 53 is meshed with worm gear 28 (Figs. 3 and 6) which is loosely mounted on vertical shaft 29, and is operably connected thereto by means of jaw clutch 4i.
  • Worm 53 and gear 28 are so related that one-third 5 revolution of worm 53 will rotate gear 28 through a distance which, through gear 3i and rack 32, causes the type carriage to be stepped forward one character space.
  • continuous spacing may be effected upon the receipt of a code combination known as the tabulating code combination which functions to initiate the operation of the tabulating mechanism.
  • the mechanically operated tabulating arrangement of the present invention comprises a tabulator bar 98 extending across the front of the printing apparatus, as shown in Fig. 1, which is provided with depending portions 92 and 83 through which bar 8! is pivotally mounted on bracket 94 carried in the printer frame.
  • tabulator bar 9i is adapted to be swingable toward and away from the type carriage 15.
  • Bar ti is also provided with a longitudinal slot 85 extending substantially the entire length of the bar. In this slot are adjustably movable stop members 85 which are adapted to be clamped to the bar ti by means of screws 81 and clamps 528 individual to each stop member 85 (Fig. 3).
  • these stop members 85 are each provided with an inclined or cam portion 39, specially conformed so as to provide a quick action upon cooperation with a cam element till carried by the type carriage, to terminate suddenly the tabulating operation. 7
  • Tabulator bar Si is also provided, intermediate the depending portions 82 and 99 (Fig. 1) and suitably positioned relative to function lever 55, with another depending portion 9i. Attached to and depending from portion 9i is a bar 92 the lower end of which is provided with an aperture 99 having its upper left-hand corner (as viewed in Fig. 3) conformed so as to provide a reentrant stepped portion 94.
  • the tabulator bar M as indicated in Fig. 6, normally tends to move toward the printing apparatus due to the action of a spring 95.
  • arm 96 of a lever 91 pivotally carried at 99 on a support 99 secured to the function lever comb 41.
  • the extremity of arm 96 is provided with a 63 laterally disposed portion Nil as shown in Fig. 4 I which cooperates with portion 94 of member 92.
  • a vertically extending member )3 At the end of arm I02 of lever 97 is rigidly carried a vertically extending member )3 the upper end of which is provided (in the present embodiment) with an open-ended slot adapted to engage a pin I04 carried by escapement lever 62.
  • Function lever 45 is provided with a horizontal portion-I05 so conformed that its extremity Hi6 engages the lower edge of arm Hi2 of lever 91! such that when function lever 45 is permitted to rotate in a clockwise direction under the action of its spring 48 upon the proper setting of the vanes I07 in response to the tabulation code sig nal, the end I06 thereof is elevated, causing lever 9 to rotate slightly in a clockwise direction against the tension of its spring I08.
  • the end lili of arm 96 is thus moved downwardly, clear of portion 94, thus permitting spring 95 to urge the tabulator bar 8i inwardly (or toward the left as viewed in Fig. 3) until wall I09 of member 92 engages lug Hill.
  • cam ill like bar [l5 and bell cranks I3, is movable with the type carriage l5 for character spacing.
  • Cam 0 i i normally tends to rotate in a clockwise direction about pivot H2 due to the action of spring i it, but its clockwise rotation is limited by the coaction of a stop pin ill, carried thereon, with the end of bar H5.
  • cam lill due to its non-rotatability in a clockwise direction, will, by its camming action on any stop member 86, actuate tabulator bar 8! outwardly; but upon the leftward movement of type carriage l5, cam iii if striking any of the series of stop members 86 will be rotated counterclockwise against the action of spring H9 sufiiciently to pass the cam portion 89.
  • selector mechanism responsive to received code combinations of signaling impulses, a type carriage movable normally one character space for each recording operation, and means controlled by said selector mechanism for causing said carriage to advance uninterruptedly through a plurality of spaces at a time from one recording position to another.
  • a carriage movable to form character spaces means to perform functions other than recording, a permutation device movable with said carriage to determine the character to be recorded, a stationary permutation device to control said means and said permutation device, and a tabulating device controlled by said means for releasing said carriage for advancement through a plurality of spaces at a time from one recording position to another.
  • a carriage movable to form character spaces, a spacing mechanism therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said spac- 46 ing mechanism comprising 'a pair of springbiased pawls acting to afford an escapement therefor, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabu- 50 lating mechanism operative in response to the selective operation of a certain one of said levers to effect, through the instrumentality of said lever, the disablement of one of said pair of pawls to release said carriage for advancement 55 continuously through a plurality of spaces at a time.
  • a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the 50 advancement of said carriage one character space upon each operation thereof, said spacing mechanism including a spacing ratchet, a pair of pawls and a single spring means. to render said pair of pawls coactive with said ratchet in 5 escapement manner, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of 70 said levers to effect, through the operation of said lever, the disengagement of one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time n 6.
  • a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said mech- 5 anism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, and tabulating mechanism effective under control of said selector mechanism to disable one of said pair of pawls to release said 10 carriage for advancement continuously through a plurality of spaces at a time.
  • a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the 15 advancement of said carriage one character space upon each operation thereof, said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, permutation code mechanism to control 20 operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of said levers to disable, through the operation of said lever, one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
  • a carriage movable to form character spaces, spacing mechanism 30 therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attra hently, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and a tabulating mechanism comprising a pivotally mounted stop a plate, a manually adjustable stop member adapt- 0 ed to be positioned at any one of a plurality of points along said stop plate, a projection on said carriage cooperable with saidpositioned stop member, and a depending latch portion coactive with an extension on one of said code levers, said tabulating mechanism operative in response to the selective operation of said extension carrying code lever to disable one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
  • a carriage movable to form character spaces means comprising a multi-toothed disc, the number of teeth being equal to the number of spacing operations per revolution of said disc, to effect said spacing movement, a bail movable in a complete cycle for each character spacing operation, detent means mounted in said bail whereby the movement of said bail during each spacing operation causes the escapement of said disc to effectuate, through said first-recited means, the spacing movement of said carriage, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of' said levers to disable, through the operation of said lever, said detent means to enable said first-recited means to advance said carriage tcontinuously through a plurality of spaces at a ime.
  • signal responsive means a carriage movable to form character spaces, means comprising a multi-toothed disc, the number of teeth being equal to the number of spacing operations per revolution of said disc, to effect said spacing movement, a bail movable in-a complete cycle for each character spacing operation, detent means comprising a pair of attrahently biased pawls mounted in said bail whereby the movement of said bail during each spacing operation causes the escapement of said disc to effectuate, through said pair of pawls, the spacing movement of said carriage, and tabulating mechanism efi'ective under the control of said signal responsive means to disafiect said pair of pawls to enable said second-recited means to advance said carriage continuously through a plurality of spaces at a time.
  • a single magnet responsive to received code combinations of impulse conditions, a plurality of recording elements, a plurality of selecting members controlled by said magnet for selectively operating said elements, guiding and supporting means, a carriage mounted for reciprocation on said guiding and supporting means, said elements and members being mounted on said carriage, a rack mounted on said carriage, a driven spacing worm cooperable with said rack, spacing mechanism for actuating said worm normally in a step-by-step manner to effect character spacing of said carriage, means responsive to said magnet comprising a plurality of function code levers for controlling operations other than recording, and tabulating mechanism operative in response to the selective operation of a certain one of said levers to disable said spacing mechanism to release said carriage for advancement continuously through a plurality of spaces at a time.
  • signal responsive means a movable carriage, a constantly rotating shaft, means constantly engaged by said shaft tending to continually advance said carriage, detent means comprising a pair of attrahently biased pawls normally preventing advance of said carriage, a periodically operable member, means controlled by said member for releasing said detent means to allow advance of said carriage one character space during each cycle of movement of said member, and tabulating mechanism eii ective under the control of said signal responsive means to disable one of said pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
  • signal responsive means means to effect recording operations, single means operablein cycles to actuate said means to effect character spacing, means comprising a pair of spring-biased pawls to limit the movement of said recording means to a single character space for each cyclic operation or" said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls to allow advance of said recording means a plurality of character spaces for each cycle of operation of said cyclically operable means.
  • signal responsive means means to effect recording operations, single means operable in cycles to actuate said means to 'efiect character spacing, escapement mechanism comprising a pair of attrahently biased pawls normally adapted to advance said recording means one character space for each cyclic operation of said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls whereby said recording means is advanced a plurality of character spaces for each cycle of operation of said cyclically operable means.
  • signal responsive means a carriage movable to form character spaces, spacing mechanism comprising a pair of attrahently biased pawls normally adapted to control the advancement of said carriage one character space for each printing operation, single means operable in cycles to actuate said spacing mechanism normally one character space for each cyclic operation of said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls whereby said carriage is advanced a plurality of character spaces for each cycle of operation of said cyclically operable means.
  • signal responsive means a carriage movable to form character spaces, a main shaft, an operating bail, a spacing mechanism associated with said shaft adapted to space said carriage a definite number of spaces during each revolution of said shaft, an
  • escapement mechanism comprising a pair of attrahently biased pawls associated with said spacing mechanism and said shaft controlled by said operating bail to limit to one character space the movement of said carriage at each spacing operation, and means controlled by said signal responsive means to disable one or" said pawls to render said spacing mechanism effective to advance said carriage continuously from one recording position to another.
  • signal responsive means a movable carriage, a constantly driven member, means engaged by said member tending to advance said carriage continually, detent means comprising a pair of attrahently biased pawls normally preventing advance of said carriage, an intermittently operable printing member, means controlled by said printing member for releasing said detent means to allow advance of said carriage only one character space during each cycle of movement of said member, and means controlled by said signal responsive means effective under certain operating conditions for disabling one of said pawls to allow advance of said carriage a plurality of character spaces during each cycle of movement of said member.
  • a plurality of recording elements collectively movable normally one character space
  • selecting means responsive to code signals and comprising a set of function levers, and means controlled by one of said function levers for causing said recording elements to advance by sustained movement through a plurality of spaces at a time from one recording position to another.
  • code signal controlled means including a tabulator function lever, and means controlled by said function lever for disabling said restraining means to enable non-intermittent movement of said elements a predetermined plurality of character spaces at a time.
  • a movable type carriage continuously rotatable means, means frictionally related to said means for imparting movement to said carriage, restraining means for rendering said carriage responsive during a portion of a revolution of said rotatable means, code signal controlled means including a tabulator function lever, and means controlled by said function lever for disabling said restraining means to render said carriage fully responsive to rotation of said rotatable means.
  • a carriage movable to form character spaces means to perform functions other than recording, a permutation device movable with said carriage'to determine the character to be recorded, a stationary permutation device to control said means and said permutation device, and a tabulating device controlled by said means for controlling the advancement of said carriage a plurality of spaces at a time from one recording position to another.
  • a carriage, spacing mechanism therefor, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to theselective operation of a certain one of said levers to control the advancement of said carriage through a predetermined plurality of spaces at a time.
  • a carriage spacing mechanism operative normally to control the advancement of said carriage one character space at a time
  • said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, and tabulating mechanism effective under control of said selector mechanism to disable one of said pair of pawls to control the advancement of said carriage through a plurality of spaces at a time.
  • selector mechanism comprising a plurality of function levers, responsive to code signals, a type carriage, spacing mechanism operative normally to control the advancement of said type carriage one character space at a time, and tabulating mechanism effective under control of one of said function levers to control the uninterrupted advancement of said type carriage through a plurality of 20 spaces at a time.

Description

pril/ 3, 1937- A. H. REIBER 7 2,076,364
PRINTING TELEGRAPH APPARATUS Filed July 14, 1934 3 Sheets-Sheet 1 INVENTOR ALBERT PC7515? 54 95 ATTOR Y April 13, 1937. H, RElBER 2,076,864
PRINTING TELEGRAPH APPARATUS Filed July 14, 1954 s Sheets-Sheet 2 il 1 O O O I 0 -33 I o a/ 44 j A [3 /07 i 5 43 INVENTOR ALBERTH. A E/5E1? F/GQ4 1% ATTORNEY April 13, 1937. A H. NEIIBER PRINTING TELEGRAPH APPARATUS 7 Filed July 14, 1954 3 Sheets-Sheet 3 lllllllllllllflilllll' INVENTOR flLBE/QT H. 95/559 ATTORNEY Ftatented Apr. 13, 1937 PATENT OFFICE PRINTING TELEGRAPH APPARATUS Albert H. Reiber, Evanston, Ill., assignor to Teletype Corporation, Chicago, 111., a corporation of Delaware Application July 14, 1934, Serial No. 735,094
24 Claims.
The present invention relates to printing telegraph apparatus and more particularly to improvements in tabulating mechanisms therefor.
It is the principal object of this invention to provide an efficient and smoothly operating tabulating mechanism selectively responsive to code combinations of signalling impulses for controlling tabulation recording.
A feature of the invention resides in enhancing the speed of movement of the type carriage in effecting the tabulating function, during which operation the type carriage will be spaced continuously at a speed which is three times that of normal spacing.
The above and other objects of the present invention are accomplished by the provision in a printing telegraph apparatus of a tabulator bar which extends across the front of the machine and is pivotally carried by brackets and capable of swinging toward and away from the type carriage. The tabulator bar carries a number of adjustable stop members which determine the positions at which the type carriage comes to rest after spacing during the tabulating cycle. The spacing mechanism of theprintingapparatus comprises a three-toothed ratchet adapted to cooperate with a pair of pawls which are actuated by the printing bail to function as an escapement mechanism so that, upon each revolution 30 of the main shaft, the spacing worm gear associated with the spacing ratchet is permitted to rotate one-third of a revolution.
A series of function levers is provided which operate selectively in accordance with the setting of a series of selector vanes. Among the function levers of this series is a tabulating function lever which, when selected, is drawn forward under spring tension. When this occurs, the rear extension of the function lever rises and thereby lifts the rear end of a horizontal member. When the rear end of this horizontal member is lifted, it lifts the upper space pawl out of engagement with the tooth of the spacing ratchet, atWhich time the front end of said horizontal member is lowered thereby unlatching the tabulating bar to permit the latter to be rotated by its spring toward the type carriage. When the upper space pawl is thus disengaged, the lower space pawl remains in its normal position entirely free of so the teeth on the escapement ratchet, thus permitting the spacing worm gear to make one complete revolution instead of only one-third of a revolution during the time that the main shaft rotates through one revolution, and therefore the 1a carriage will be spaced continuously a distance per revolution of the main shaft which is three times that of normal spacing distance. To bring the carriage to rest after tabulating it is necessary to permit the upper space pawl to drop again into engagement with a tooth on the spacing ratchet. This latter function is effected by the cooperation of a cam element assembled to the carriage and one of the adjustable stop members carried by the tabulator bar. This cam. forces or cams the tabulator bar forward or away from the carriage, against spring tension, and in doing so permits said horizontal member to be restored to its normal position into latching engagement with the tabulator bar. This restoration action of the horizontal member permits the upper space pawl again to fall into engagement with a tooth on the spacing worm ratchet, which thereupon brings the carriage to rest.
A better understanding of the invention may be had from the following description taken in conjunction with the accompanying drawings wherein,
Fig. l is a partial front elevation of the printing apparatus showing the application of the tabulating mechanism thereto;
Fig. 2 is a perspective view of the tabulating mechanism applied to said printing apparatus;
Fig. 3 is a transverse cross-sectional View of the printer taken approximately through the vertical center line of Fig. 1;
Fig. 4 is a sectional view taken on line 4-4 of Fig. 3;
Fig. 5 is a detail rear elevation of the spacing mechanism of the printing apparatus; and
Fig. 6 is a sectional plan View of the spacing mechanism.
In the accompanying drawings like reference characters indicate similar parts throughout. For a complete understanding of details not disclosed herein and which form no part of the present invention, reference may be had to the U. S. Patent No. 1,904,164 issued April 18, 1933 to S. Morton et a1.
Briefly, having reference to Figs. 1, 3, and 6, a printing apparatus to which the tabulating mechanism of the present invention is applied comprises a typing unit (shown generaly in section in Fig. 3) which includes a primary selecting mechanism indicated generally as ll (Fig. 6) which is of the sword-and-T type disclosed in U. S. Patent No. 1,745,633 to S. Morton et al. (fully disclosed in the first mentioned patent), and a. secondary selector or selector vane assembly indicated generally as Ill. The selector vane assembly l2 controls through a series of bell cranks l3 (Fig. l) a corresponding series of curved code bars 4 carried in a movable type carriage. As set forth in the first mentioned patent, this type carriage, indicated generally as I5, is movable longitudinally in respect to a stationary platen indicated generally as I6 (Fig. 3). The type carriage |5 also carries a ribbon feed mechanism indicated generally as H.
Referring particularly to Fig. 6, a motor I8 supplies power through gear I!) to a main operating shaft 2| which carries the spacing mechanism indicated generally as 22 and the selector cam assembly indicated generally as 23. As is known in this type of device, power is communicated from the motor to an operating cam assembly through a grab clutch such as 25. Pinned portion 24 of grab clutch 25 constantly rotates with the shaft 2|, which has also frictionally connected thereto the spacing mechanism 22 and the selecting cam assembly 23. Portion 24 is cooperatively engaged with the splined portion 26 when throw-out lever 21 is operated in timed relation with the reception of code signals.
The spacing mechanism 22, which will be described more in detail hereinafter, controls through gear 28, shaft 29, gear 3|, and rack 32 (Fig. 3), the movement of type carriage |5 to form character spaces, tending in this movement to wind up the carriage return spring mechanism indicated generally as 33. Upon receipt of the carriage return signal, function bar 34 is actuated selectively in the manner described in Patent No. 1,904,164 so as to permit spring 35 to rotate lever 36 suddenly against stop 31 to raise, through bell crank 38, portion 39 of grab clutch 4|. Carriage return mechanism 33 is thereupon permitted, due to the energy stored up therein, to return the carriage |5 to its normal or beginning-of-line position.
Positioned parallel to the main operating shaft 2| is a rocking shaft 42 on which are carried various mechanisms, for, example, printing bail 43, function bail 40 and the escapement mechanism for the spacing mechanism 22. The printing bail 43, which is actuated by a printing spring (not shown) in proper timed relation in the operative cycle, functions to reciprocate a pull bar operating member 44 to cause the operation of a type bar, as clearly described in the aforementioned patent.
The selector vanes as set forth in Patent No. 1,904,164 control a series of function levers among which are provided especially for accomplishing the object of the present invention is a tabulating function lever 45 which like the other function levers is pivoted on a common pivot rod 46 and is assembled in a slot in the function lever comb 41. This function lever 45, like the rest of the function levers of the series, is provided with an individual spring 48 tensioned between it and the printer frame which tends to rotate the function lever 45 about pivot 46 but, as clearly set forth in Patent No. 1,904,164, is restrained by the function lever bail 40 acting through rod 50 on arm 60.
Before describing further the function of lever 45, a detailed description of the spacing mechanism will be given. Having reference to Figs. 3 and 5 there is shown mounted on the main shaft 2| and located centrally of the apparatus a sleeve member 5| which comprises escapement ratchet 52 and escapement worm 53 which are integral therewith. Sleeve member 5| is operably connected to the hub of a disc 54 by means of interengaging tongue and groove members 55. Collar 56 is pinned to main shaft 2| and is rotatable therewith. Interposed between disc 54 and collar 56 is disc 51 of frictional material, for example, felt. By means of a helical compression spring 58, which exerts a thrust tension between disc 51 and a pinned collar sleeve 5| is frictionally connected to shaft 2| through the friction clutch comprising members 54, 56, and 51. Sleeve 5| is thereby rotatable with main shaft 2| unless arrested by the escapement pawls of the spacing mechanism 22 as will presently appear.
Referring to Fig. 3 it will be noted that ratchet 52 is provided with three teeth or notches 6|, 6|a, and 6H), the escapement of which will allow the type carriage 5 to be moved forward one step or character space for each actuation of the printing bail 43. As indicated, the escapement mechanism comprises levers 62 and 63, pivotally mounted on bail shaft 42, and lever 64 adjustably fixed to printing bail 43. Spring 65 normally tends to rotate levers 62 and 63 in opposite directions, since it is common to both levers. Lever 62 is normally urged by spring 65 in a counterclockwise direction so that laterally disposed end 66 engages tooth 6| of ratchet 52, thus arresting the rotation of said ratchet. Lever 63 is normally held out of engagement with ratchet 52 against the tension of spring 65 by the action of lever 64 against laterally disposed end 61.
Lever 64 is pivotally connected to printing bail 43 at 68 and is provided at 69 with a slot and screw adjusting means, whereby the correct rela tive position of escapement levers 62 and 63 with respect to ratchet 52 may be determined. The spacing operation occurs immediately following or subsequent to the printing of a character in the following manner.
Upon the printing of a character, lever 64 is caused to rotate slightly in a clockwise direction with printing bail 43 which moves clockwise about the axis of bail shaft 42, thereby transferring this motion to lever 62 through its laterally disposed end 1|, tripping its end 66 out of engagement with tooth 6| and permitting ratchet 52 to rotate slightly in a clockwise direction under the influence of friction clutch members 54 to 51 (Fig. 5) until arrested by the engagement of tooth 6|a with laterally disposed end 12 of lever 63 which lever by movement of lever 64 was rendered free to rotate in a clockwise direction under the tension of spring 65 into the path of oncoming tooth 6|a. Ratchet 52 is thus restrained from rotation by lever 63 until the completion of the printing of a character at which time printing direction due to the action of lever 64 on end- 61 thereof, thereby disengaging end 12 of lever 63 from tooth 6|a and allowing ratchet 52 to continue its rotation until arrested by the engagement of end 66 of lever 62 with tooth Gib.
It is obvious that since worm 53 and ratchet 52 are integrally connected to sleeve 5|, said Worm 53 will have normally the same intermittent or step-by-step motion as was hereinbefore seen to be imparted to ratchet 52. Worm 53 is meshed with worm gear 28 (Figs. 3 and 6) which is loosely mounted on vertical shaft 29, and is operably connected thereto by means of jaw clutch 4i. Worm 53 and gear 28 are so related that one-third 5 revolution of worm 53 will rotate gear 28 through a distance which, through gear 3i and rack 32, causes the type carriage to be stepped forward one character space.
From the foregoing it will be observed that character spacing takes place automatically with the printing of each character; that is, the spacing function is merged into the printing operation. It is well known that there is a code combination allotted to each type bar; but it is possible, 5 however, to employ a code combination, common ly known as the spacing signal, which is identified with no type bar but which will nevertheless initiate the printing operation. Therefore the spacing between words is accomplished in exactly the same manner as' set forth when a spacing signal is received, except that no type bar is operated and consequently no character is printed.
In accordance with the present invention, continuous spacing may be effected upon the receipt of a code combination known as the tabulating code combination which functions to initiate the operation of the tabulating mechanism.
The mechanically operated tabulating arrangement of the present invention comprises a tabulator bar 98 extending across the front of the printing apparatus, as shown in Fig. 1, which is provided with depending portions 92 and 83 through which bar 8! is pivotally mounted on bracket 94 carried in the printer frame. Thus tabulator bar 9i is adapted to be swingable toward and away from the type carriage 15. Bar ti is also provided with a longitudinal slot 85 extending substantially the entire length of the bar. In this slot are adjustably movable stop members 85 which are adapted to be clamped to the bar ti by means of screws 81 and clamps 528 individual to each stop member 85 (Fig. 3). As indicated in Fig. 6, these stop members 85 are each provided with an inclined or cam portion 39, specially conformed so as to provide a quick action upon cooperation with a cam element till carried by the type carriage, to terminate suddenly the tabulating operation. 7
Tabulator bar Si is also provided, intermediate the depending portions 82 and 99 (Fig. 1) and suitably positioned relative to function lever 55, with another depending portion 9i. Attached to and depending from portion 9i is a bar 92 the lower end of which is provided with an aperture 99 having its upper left-hand corner (as viewed in Fig. 3) conformed so as to provide a reentrant stepped portion 94. The tabulator bar M, as indicated in Fig. 6, normally tends to move toward the printing apparatus due to the action of a spring 95.
Cooperating with the stepped portion 95 is one arm 96 of a lever 91 pivotally carried at 99 on a support 99 secured to the function lever comb 41. The extremity of arm 96 is provided with a 63 laterally disposed portion Nil as shown in Fig. 4 I which cooperates with portion 94 of member 92. At the end of arm I02 of lever 97 is rigidly carried a vertically extending member )3 the upper end of which is provided (in the present embodiment) with an open-ended slot adapted to engage a pin I04 carried by escapement lever 62.
Function lever 45 is provided with a horizontal portion-I05 so conformed that its extremity Hi6 engages the lower edge of arm Hi2 of lever 91! such that when function lever 45 is permitted to rotate in a clockwise direction under the action of its spring 48 upon the proper setting of the vanes I07 in response to the tabulation code sig nal, the end I06 thereof is elevated, causing lever 9 to rotate slightly in a clockwise direction against the tension of its spring I08. The end lili of arm 96 is thus moved downwardly, clear of portion 94, thus permitting spring 95 to urge the tabulator bar 8i inwardly (or toward the left as viewed in Fig. 3) until wall I09 of member 92 engages lug Hill. The series of adjustable stops 96 are thus moved inwardly into the path of a cam member ill pivoted at M2 on a portion H3 integrally formed on a bar H5 which is comparable to bar 53 shown in Fig. 1 of Patent No. 1,904,164 employed for retaining the bell crank levers It in operable relation to vanes I07. Thus cam ill, like bar [l5 and bell cranks I3, is movable with the type carriage l5 for character spacing. Cam 0 i i normally tends to rotate in a clockwise direction about pivot H2 due to the action of spring i it, but its clockwise rotation is limited by the coaction of a stop pin ill, carried thereon, with the end of bar H5. Thus, upon the rightward movement of type carriage l5, cam lill, due to its non-rotatability in a clockwise direction, will, by its camming action on any stop member 86, actuate tabulator bar 8! outwardly; but upon the leftward movement of type carriage l5, cam iii if striking any of the series of stop members 86 will be rotated counterclockwise against the action of spring H9 sufiiciently to pass the cam portion 89.
Upon the clockwise rotation of lever 9i due to the selection of function lever 45, arm H02 and consequently portion we carried thereon will be raised and in so doing will, through pin Mi l, lift escapement lever 52 out of engagement with the teeth of the ratchet 52 which, since the lever 53 is prevented from engaging the teeth of the ratchet 52 due to its being held in inoperative position by lever 65, permits the Worm gear to make one complete revolution instead of one-third of a revolution during the time that the main shaft rotates through one revolution, and therefore the carriage will be spaced continuously a distance per revolution of the main shaft which is three times that of normal spacing so long as'the escapement lever 52 is held out of operative engagement with ratchet 52, which, as we have seen, is maintained in this position due to the engagement of lug ill! with the under side of step portion 941. Thus carriage l5 will be moved continuously until cam M l cooperates with one of the series of stops 86, when cam ill through stop 86 will urge tabulator bar 9i outwardly, as viewed in Fig. 6 (or in a clockwise direction as viewed in Fig. 3), the effect of which is to disengage lug Bill from portion 94, whereupon lever 97! will again be rotated in a counterclockwise direction by its spring 198 into the position shown in Fig. 3, in which event portion I93 carried on arm H12 of lever 9'1 will again be lowered, permitting escapement lever 52 under action of spring 65 to engage one of the teeth 6|, 6Ia, or Gib of the ratchet 52.
The function lever 45, however, will have been returned to its non-selective position, as shown in Fig. 3, at the completion of the first revolution or cycle of operation of the main shaft 2! by the return stroke or upward movement of shaft 50, where the lever 45 will be held inoperative until the reception of another tabulation code signal, pursuant to which the foregoing cycle of operations will again occur.
Obviously, changes may be made in the de- 5 tails set forth without departing from the essentials of the invention or from the spirit and scope of the invention as defined in the following claims.
What is claimed is:
1. In a recorder, selector mechanism responsive to received code combinations of signaling impulses, a type carriage movable normally one character space for each recording operation, and means controlled by said selector mechanism for causing said carriage to advance uninterruptedly through a plurality of spaces at a time from one recording position to another.
2. In a recorder, a carriage movable to form character spaces, means to perform functions other than recording, a permutation device movable with said carriage to determine the character to be recorded, a stationary permutation device to control said means and said permutation device, and a tabulating device controlled by said means for releasing said carriage for advancement through a plurality of spaces at a time from one recording position to another.
3. In a telegraph printer, a carriage'movable to form character spaces, spacing mechanism therefor normally adapted to control the advancement of said carriage one character space for each printing operation, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in a response to the selective operation of a certain one of said levers to release said carriage for uninterrupted movement through a predetermined plurality of character spaces at a time. 40 4. In a telegraph recorder, a carriage movable to form character spaces, a spacing mechanism therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said spac- 46 ing mechanism comprising 'a pair of springbiased pawls acting to afford an escapement therefor, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabu- 50 lating mechanism operative in response to the selective operation of a certain one of said levers to effect, through the instrumentality of said lever, the disablement of one of said pair of pawls to release said carriage for advancement 55 continuously through a plurality of spaces at a time.
5. In a telegraph recorder, a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the 50 advancement of said carriage one character space upon each operation thereof, said spacing mechanism including a spacing ratchet, a pair of pawls and a single spring means. to render said pair of pawls coactive with said ratchet in 5 escapement manner, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of 70 said levers to effect, through the operation of said lever, the disengagement of one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time n 6. In a telegraph recorder, selector mechanism responsive to code signals, a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said mech- 5 anism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, and tabulating mechanism effective under control of said selector mechanism to disable one of said pair of pawls to release said 10 carriage for advancement continuously through a plurality of spaces at a time.
7. In a telegraph recorder, a carriage movable to form character spaces, spacing mechanism therefor normally adapted to control the 15 advancement of said carriage one character space upon each operation thereof, said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, permutation code mechanism to control 20 operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of said levers to disable, through the operation of said lever, one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
8. In a telegraph recorder, a carriage movable to form character spaces, spacing mechanism 30 therefor normally adapted to control the advancement of said carriage one character space upon each operation thereof, said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attra hently, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and a tabulating mechanism comprising a pivotally mounted stop a plate, a manually adjustable stop member adapt- 0 ed to be positioned at any one of a plurality of points along said stop plate, a projection on said carriage cooperable with saidpositioned stop member, and a depending latch portion coactive with an extension on one of said code levers, said tabulating mechanism operative in response to the selective operation of said extension carrying code lever to disable one of said pair of pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
9. In a telegraph recorder, a carriage movable to form character spaces, means comprising a multi-toothed disc, the number of teeth being equal to the number of spacing operations per revolution of said disc, to effect said spacing movement, a bail movable in a complete cycle for each character spacing operation, detent means mounted in said bail whereby the movement of said bail during each spacing operation causes the escapement of said disc to effectuate, through said first-recited means, the spacing movement of said carriage, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to the selective operation of a certain one of' said levers to disable, through the operation of said lever, said detent means to enable said first-recited means to advance said carriage tcontinuously through a plurality of spaces at a ime.
10. In a telegraph recorder, signal responsive means, a carriage movable to form character spaces, means comprising a multi-toothed disc, the number of teeth being equal to the number of spacing operations per revolution of said disc, to effect said spacing movement, a bail movable in-a complete cycle for each character spacing operation, detent means comprising a pair of attrahently biased pawls mounted in said bail whereby the movement of said bail during each spacing operation causes the escapement of said disc to effectuate, through said pair of pawls, the spacing movement of said carriage, and tabulating mechanism efi'ective under the control of said signal responsive means to disafiect said pair of pawls to enable said second-recited means to advance said carriage continuously through a plurality of spaces at a time.
11. In a telegraph recorder, a single magnet responsive to received code combinations of impulse conditions, a plurality of recording elements, a plurality of selecting members controlled by said magnet for selectively operating said elements, guiding and supporting means, a carriage mounted for reciprocation on said guiding and supporting means, said elements and members being mounted on said carriage, a rack mounted on said carriage, a driven spacing worm cooperable with said rack, spacing mechanism for actuating said worm normally in a step-by-step manner to effect character spacing of said carriage, means responsive to said magnet comprising a plurality of function code levers for controlling operations other than recording, and tabulating mechanism operative in response to the selective operation of a certain one of said levers to disable said spacing mechanism to release said carriage for advancement continuously through a plurality of spaces at a time.
12. In a telegraph printer, signal responsive means, a movable carriage, a constantly rotating shaft, means constantly engaged by said shaft tending to continually advance said carriage, detent means comprising a pair of attrahently biased pawls normally preventing advance of said carriage, a periodically operable member, means controlled by said member for releasing said detent means to allow advance of said carriage one character space during each cycle of movement of said member, and tabulating mechanism eii ective under the control of said signal responsive means to disable one of said pawls to release said carriage for advancement continuously through a plurality of spaces at a time.
13. In a telegraph recorder, signal responsive means, means to effect recording operations, single means operablein cycles to actuate said means to effect character spacing, means comprising a pair of spring-biased pawls to limit the movement of said recording means to a single character space for each cyclic operation or" said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls to allow advance of said recording means a plurality of character spaces for each cycle of operation of said cyclically operable means. i
14. In a telegraph recorder, signal responsive means, means to effect recording operations, single means operable in cycles to actuate said means to 'efiect character spacing, escapement mechanism comprising a pair of attrahently biased pawls normally adapted to advance said recording means one character space for each cyclic operation of said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls whereby said recording means is advanced a plurality of character spaces for each cycle of operation of said cyclically operable means.
15. In a telegraph printer, signal responsive means, a carriage movable to form character spaces, spacing mechanism comprising a pair of attrahently biased pawls normally adapted to control the advancement of said carriage one character space for each printing operation, single means operable in cycles to actuate said spacing mechanism normally one character space for each cyclic operation of said cyclically operable means, and means controlled by said signal responsive means to disable one of said pawls whereby said carriage is advanced a plurality of character spaces for each cycle of operation of said cyclically operable means.
16. In a telegraph recorder, signal responsive means, a carriage movable to form character spaces, a main shaft, an operating bail, a spacing mechanism associated with said shaft adapted to space said carriage a definite number of spaces during each revolution of said shaft, an
escapement mechanism comprising a pair of attrahently biased pawls associated with said spacing mechanism and said shaft controlled by said operating bail to limit to one character space the movement of said carriage at each spacing operation, and means controlled by said signal responsive means to disable one or" said pawls to render said spacing mechanism effective to advance said carriage continuously from one recording position to another.
17. In a telegraph printer, signal responsive means, a movable carriage, a constantly driven member, means engaged by said member tending to advance said carriage continually, detent means comprising a pair of attrahently biased pawls normally preventing advance of said carriage, an intermittently operable printing member, means controlled by said printing member for releasing said detent means to allow advance of said carriage only one character space during each cycle of movement of said member, and means controlled by said signal responsive means effective under certain operating conditions for disabling one of said pawls to allow advance of said carriage a plurality of character spaces during each cycle of movement of said member.
18. In a telegraph recorder, a plurality of recording elements collectively movable normally one character space, selecting means responsive to code signals and comprising a set of function levers, and means controlled by one of said function levers for causing said recording elements to advance by sustained movement through a plurality of spaces at a time from one recording position to another.
19. In a telegraph recorder, collectively movable recording elements, means for restraining the movement of said elements to one character space, code signal controlled means including a tabulator function lever, and means controlled by said function lever for disabling said restraining means to enable non-intermittent movement of said elements a predetermined plurality of character spaces at a time.
20. In a telegraph recorder, a movable type carriage, continuously rotatable means, means frictionally related to said means for imparting movement to said carriage, restraining means for rendering said carriage responsive during a portion of a revolution of said rotatable means, code signal controlled means including a tabulator function lever, and means controlled by said function lever for disabling said restraining means to render said carriage fully responsive to rotation of said rotatable means.
21. In a recorder, a carriage movable to form character spaces, means to perform functions other than recording, a permutation device movable with said carriage'to determine the character to be recorded, a stationary permutation device to control said means and said permutation device, and a tabulating device controlled by said means for controlling the advancement of said carriage a plurality of spaces at a time from one recording position to another.
22. In a telegraph printer, a carriage, spacing mechanism therefor, permutation code mechanism to control operations other than recording comprising a plurality of function code levers, and tabulating mechanism operative in response to theselective operation of a certain one of said levers to control the advancement of said carriage through a predetermined plurality of spaces at a time.
23. In a telegraph recorder, selector mechanism responsive to code signals, a carriage, spacing mechanism operative normally to control the advancement of said carriage one character space at a time, said mechanism embodying an escapement device including a pair of pawls and means to bias said pawls attrahently, and tabulating mechanism effective under control of said selector mechanism to disable one of said pair of pawls to control the advancement of said carriage through a plurality of spaces at a time.
24. In a telegraph recorder, selector mechanism, comprising a plurality of function levers, responsive to code signals, a type carriage, spacing mechanism operative normally to control the advancement of said type carriage one character space at a time, and tabulating mechanism effective under control of one of said function levers to control the uninterrupted advancement of said type carriage through a plurality of 20 spaces at a time.
ALBERT H. REIBER.
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