US2539509A - Printing telegraph apparatus - Google Patents

Printing telegraph apparatus Download PDF

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Publication number
US2539509A
US2539509A US737160A US73716047A US2539509A US 2539509 A US2539509 A US 2539509A US 737160 A US737160 A US 737160A US 73716047 A US73716047 A US 73716047A US 2539509 A US2539509 A US 2539509A
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United States
Prior art keywords
shaft
wheel
arm
planetaries
spur
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Expired - Lifetime
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US737160A
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English (en)
Inventor
Estoup Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sagem SA
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Sagem SA
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Publication date
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Publication of US2539509A publication Critical patent/US2539509A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus 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
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/26—Apparatus or circuits at the receiving end using aggregate motion translation

Definitions

  • the present invention relates to printing telegraphic apparatus, to remote control and to like apparatus; it has for its object a combining translating mechanism for combining elements representing particularly but not exclusively, characters, figures, signs or controls of motions which may or may not be annexed to the characters, figures or signs being translated.
  • the invention particularly applies, in the actual state of the art, to printing telegraphs and to re mote control apparatus which represent each character, figure, sign or control of motion by means of five characteristic impulses capable of taking the one or the other of two values respectively called rest and operative.
  • the standard differential mechanism comprising a driving wheel, a set of planet wheels and a driven wheel, affords a solution of the said problem for two angular displacements. Consequently, for the elementary case of two elements, when the driving wheel revolves through a given angle A in a given direction, the set of planetary wheels remaining stationary, the driven wheel revolves through the same angle A in reverse direction; if the set of planetary wheels revolves through a given angle B in a given direc tion, whilst the driving wheel remains stationary, the driven wheel revolves through twice that angle B in the same direction as the set of planetaries; finally if the driving wheel revolves through a given angle A in a given direction, and the set of planetaries through an angle B in the reverse direction, 'the'displacements will add to one another and the driven wheel revolves through an angle A+2B in the opposite direction to the driving wheel.
  • each driven wheel driving the driving wheel of the following mechanism and the direction of rotation of the first set of planetaries being the reverse of that of the driving wheel of said first mechanism, that of the second set being in the same direction as the driving wheel of the second mechanism, and the following one being the reverse and so on, reversing each time the direction of rotation of the set of planetaries.
  • the displacements of the first driving wheel will be reproduced without modification by the driven wheel of the last differential mechanism; the displacements of each of the sets of planetaries will be reproduced by double displacements of the last driven wheel; the various displacements thus transmitted will add to one another, the last driven wheel thus reproducing the sum of the displacements of the first driving wheel and of twice the displacements of the successive sets of planetaries.
  • an angular displacement of 4A may be imparted to the first set of planetaries, of A to the second and so on; but it is also apparent that it is advantageous, in order to reduce the amplitude of the displacements performed by each of the wheels and thus reduce the inertia of the system, to couple the operating shaft with the driven wheel of the set of planetaries having the largest displacement to perform, such set being considered as the first cf the series, the following set having half the displacement of the preceding one and so on, and the last set and its driven wheel having each a displacement equal to unity A.
  • the last set consequently has a displacement equal to A, and the driving wheel of such last set also has a displacement equal to A.
  • the preferred differential mechanism is of the spur pinion type comprising a driving spur wheel and a driven spur wheel of equal size and same number of teeth and a planetary set comprising two equal spur pinions engaging each other, one of them meshing with the driving spur wheel and the other with the driven spur wheel.
  • the first set of planetaries will be displaced one quarter of a revolution and the following one of a revolution. i. e. as a whole of a revolution. Consequently a residual space of of a revolution will be pre served upon the circular paths described by said sets of planetaries.
  • Fig. 1 is an overall View of the mechanism which is the object of the invention
  • Fig. 2 is a sectional view according to XX of Fig. 1, showing the mechanical devices relating to a characteristic element;
  • Fig. 3 is a view from the bottom showing the operating mechanism
  • Fig. 4 is an exploded view of the principal parts.
  • the apparatus comprises an operating shaft I, carrying a type wheel 2.
  • the whole mechanism is contained between two plates 3 and 4.
  • the shaft I is operatively connected to a first spur wheel 5 of which it follows all the rotations.
  • a first set of planetaries comprises the pinion 6 meshing with the spur wheel 5 and the pinion 'I meshing with the pinion 6 and with a spur wheel 8.
  • the pinions 6 and I are mounted between the The second spur wheel 8 and the arm I I are freely pivoted about the shaft I.
  • a second set of planetaries is constituted by the pinions i2, meshing with the spur wheel 8, and I3, meshing with the pinion I2 and with a spur wheel I4.
  • the pinions I2 and I3 are secured to the arm I5 freely pivoted, as also spur wheel I4, about the shaft I.
  • a fourth spur wheel I l, a fourth set of lanetaries and a fifth spur wheel I9 are freely pivoted about the shaft I.
  • the fifth spur wheel I?” is operatively connected to an arm 20 identical with the arm II.
  • each of the arms I I, I5, I6, I8 supporting the pairs of planetary wheels 6-4, I 2I3, etc., and the arm 20 abut against rod 22 mounted on plates 3 and 4 and constituting a common stop for said arms.
  • each arm comes in front of a slot 23 provided on an associated trigger 24 freely pivoted about a shaft 25 mounted between plates 3 and 4.
  • the arm II When the trigger 24 is removed from engage: ment with arm II by actuation in the direction of the arrow 25, the arm II may abut against the stop 28 so mounted between plates 3, 4 as to limit the angular displacement of the arm to In the same way, the arm I5 may abut against the stop 29.
  • the sets of planetaries and their arms I6 and I i3 and the arm 20 may abut against the stops 3%, 3
  • and 32 will arrest arms l6, I8 and 20 respectively at 1%, 3 and turns.
  • Each of triggers 2 3 may be spaced from the corresponding arm by means of an associated storing lever 33 freely pivoted about the shaft 34 and maintained in either one of two positions by a roller 35 carried by an arm 33 freely pivoted about the shaft 31 and constantly urged back towards the lever 33 by a spring 38.
  • the storing levers 33 may be set in position, as known, by means of tilting members such as 39 which can freely pivot about a common shaft 40, carried by a frame 4! pivotally mounted on a shaft 42, members 39 being governed by the position of parts 43 carried by two stops 44 and 45 and which may take up either of two positions, by sliding across the stops.
  • tilting members such as 39 which can freely pivot about a common shaft 40, carried by a frame 4! pivotally mounted on a shaft 42, members 39 being governed by the position of parts 43 carried by two stops 44 and 45 and which may take up either of two positions, by sliding across the stops.
  • the shaft axis 42 may be displaced by the link 46 and the lever 41, through an operating mechanism not shown, for example of the type disclosed in French Patent 912,932 of March 13, 1945.
  • Such an operating mechanism pulls the rod 48, connected by a spring 49 tothe arm50 in turn secured to a toothedsector 5
  • a pivot 54 'secured upon the rod 48 and slidable within a slot 55, maintains the rod 48 and secures a minimum value to the tension of the spring 49.
  • the tail 60 then bears upon the trigger 24, rotating it in the direction of the arrow 26 and removing it from the corresponding arm I I, thus bringing it to the position Bl.
  • Such motion does not take place if the storing lever 33 is already in the said position.
  • Those of the tilting members 39 which meet a part 43 having slid towards the right of Fig. 2, rotate in the direction opposite to the arrow 58, and rotate the levers 33 in the direction opposite to the arrow 59, allowing the trigger 24 to drop towards the levers H or leaving them in such position if they already are so.
  • the link 43 withdraws, removing the tilting members 39 from engagement with the parts 43 and enables to move the latter without modifying the combination stored in the levers 33.
  • the operating mechanism moves the rod 48 in the direction of the arrow 62, driving, by means of the spring 49, the toothed sector 5
  • the operating shaft I is driven in the direction of the arrow 2
  • the displacement of the rod 48' is provided in order to secure, in addition to the revolution performed by the shaft 1 when all the hooks 24 are in the osition 6!, a supplementary angle, in order that the support of the arms ll etc. will always be secured upon the corresponding stops by the tension of the spring 49.
  • the translation. may take place by known means when the rod 48 is at the end of its stroke, after which the operating mechanism returns it to resting position, bringing all the arms II in contact with the common stop 22.
  • a sixth wheel, a fifth set of planetaries, a sixth trigger 24 and a sixth storing lever 33 will only have to be added to the above-described apparatus; the said storing lever 33 will be brought into engagement, for instance, for the characters, and out of engagement for the figures.
  • the displacement allowed for the fifth set of planetaries and for the driving wheel with which it meshes being /64 of a revolution, the combining member will give 64 different positions, of which 32 in characters position and 32 in figures position.
  • the invention is not restricted to the embodiment particularly disclosed but comprises, on the contrary, all possible modifications, such as, for example, those in which the positioning of the storing levers 33 would be performed by any means other than those described; and those in which the angular displacements of the shaft I would operate other devices than a type wheel,
  • Mechanism for positioning a type-wheel or like working unit as a function of a combination of elements of a code materialized by the positioning of a given number of combining elements each adapted to occupy either one of two positions said mechanism comprising: an operating shaft having a type-wheel keyed thereto, a spur wheel corresponding to each element of the code mounted on the shaft, the first wheel being rotatable with the shaft and the others free there-on, combining levers, in number one less than the number of wheels, mounted for free rotation on the shaft in alternate positions intermediate the wheels, each combining lever having mounted thereon a pair of planetary wheels each meshing respectively with the other and with one of the spur wheels situated on either side of the associated lever, the first of said com bining levers, adjacent the spur wheel rotatable with theshaft, being adapted to swing about the shaft between two positions defining an angle of not more than each successive combining lever being similarly adapted to swing through an angle half of that defined for the preceding combining lever, and a lever rotatable with the
  • a trigger associated with each combining lever and complementary means on said trigger and lever for mutual engagement thereof, thereby to arrest said lever in a predetermined position ad jacent to the position of engagement with said 10 common stop, said predetermined position corresponding to one of the two positions of one of the combining elements.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Devices (AREA)
US737160A 1946-03-29 1947-03-25 Printing telegraph apparatus Expired - Lifetime US2539509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR260446X 1946-03-29

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US2539509A true US2539509A (en) 1951-01-30

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CH (1) CH260446A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900848A (en) * 1954-04-09 1959-08-25 Henn-Collins Christophe Arthur Mechanical selective positioning mechanism
US3339021A (en) * 1967-08-29 Setting device for type drum printers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1084632A (en) * 1909-03-05 1914-01-20 William R Heath Wage and job accounting system.
US1591995A (en) * 1926-07-13 Totalizer
US1996815A (en) * 1932-04-01 1935-04-09 Celanese Corp Variable speed take-up mechanism
US2046977A (en) * 1930-04-11 1936-07-07 Western Union Telegraph Co Indicator dial operating mechanism
US2093873A (en) * 1934-08-23 1937-09-21 Creed & Co Ltd Translating mechanism for type printing telegraphs and like apparatus
US2167505A (en) * 1934-04-09 1939-07-25 Creed & Co Ltd Translating mechanism
US2329580A (en) * 1941-07-25 1943-09-14 Int Standard Electric Corp Telegraph printer
US2414832A (en) * 1944-01-13 1947-01-28 Borg Warner Planetary reverse gear

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591995A (en) * 1926-07-13 Totalizer
US1084632A (en) * 1909-03-05 1914-01-20 William R Heath Wage and job accounting system.
US2046977A (en) * 1930-04-11 1936-07-07 Western Union Telegraph Co Indicator dial operating mechanism
US1996815A (en) * 1932-04-01 1935-04-09 Celanese Corp Variable speed take-up mechanism
US2167505A (en) * 1934-04-09 1939-07-25 Creed & Co Ltd Translating mechanism
US2093873A (en) * 1934-08-23 1937-09-21 Creed & Co Ltd Translating mechanism for type printing telegraphs and like apparatus
US2329580A (en) * 1941-07-25 1943-09-14 Int Standard Electric Corp Telegraph printer
US2414832A (en) * 1944-01-13 1947-01-28 Borg Warner Planetary reverse gear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339021A (en) * 1967-08-29 Setting device for type drum printers
US2900848A (en) * 1954-04-09 1959-08-25 Henn-Collins Christophe Arthur Mechanical selective positioning mechanism

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Publication number Publication date
CH260446A (fr) 1949-03-15

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