BE515880A - - Google Patents

Description

       

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  CALCULATOR.



   The present invention relates to a calculating machine of the reduced keyboard type, intended in particular for addition and subtraction and intended to be placed on a table or the like, with a view to performing calculation operations.
The invention relates in particular to calculating machines of the type described above, in which a series of stop members are arranged in transverse rows, the number of which corresponds to that of the number of units of the numbering system considered, each row comprising a number of stop members which corresponds at least to the number of decimal orders of the machine, these stops being able to be actuated by means of entry keys so as to move these stop members. stop from a rest position to a working position, these stop members being,

   in each of these positions, displaced in the transverse direction by a distance corresponding to that which exists between two neighboring decimal orders of the row, machine in which a certain number of actuators are displaced longitudinally , so as to be stopped in a position determined by a stop member in the working position, this displacement corresponding, in each decimal order, to the figure which has been entered in the totalizer.



   Throughout the following description, the expressions "longitudinal", "transverse", "right", "left", "towards the front", "towards the rear", "anterior" and "posterior" have been used. used to qualify movements, positions or parts considered as they appear to the operator in front of whom the machine is placed on a horizontal support, for example a table, as is generally the case in calculating machines of the type described , the keypad being on the side close to the operator, the longitudinal direction of the machine being normal to the operator's plane.



   In a machine of the type described above, the actuating members are able to transmit their displacement to a totalizer and to a

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 printing device, intended respectively to record in this totalizer the amount entered by the keys and to print this amount, thus recorded on a strip of paper or other printing medium advanced with respect to a platen d printing, the combined action of the actuators, the totalizer and the printing device being further reversible in order to extract a sum from the totalizer and print it on the printing web.



   The invention aims to produce a calculating machine in which all the complicated mechanisms of known calculating machines are replaced by very simple mechanisms, comprising a reduced number of members.



   Another object of the invention consists in establishing a machine to be calculated of a very reduced size.



   Another object of the invention consists in considerably reducing the mass of members required to move during each calculation operation, so as to reduce the force necessary for controlling the machine and to reduce the resistance. 'to the movement of the various organs, which further reduces the effort required for the control.



   Therefore, the invention aims to establish a calculating machine which can be controlled with very little effort and in which the usual long crank arm control handle or the usual powerful electric motor, as well as the necessary mechanism. to engage and disengage the main drive shaft relative to the engine at each revolution of this shaft, can be replaced by a simple drive button provided to perform a relatively small displacement, which only determines a reduced interruption in handling the machine.



   The invention, which aims to achieve the objects and advantages enumerated above, as well as others, makes it possible to establish a calculating machine of the type specified above and which contains a number of different mechanisms, that is to say an inscription mechanism, a driving mechanism, an actuating mechanism for the totalizer, this totalizer not forming part of the invention, a control mechanism and a control mechanism. 'impression. Each of these mechanisms will be described below in a special chapter, with reference to the accompanying drawings, which show an embodiment of the calculating machine according to the invention and in which:
Fig. 1 is a side elevational view of the machine, the housing being shown in section, in order to show the various mechanisms. trattment.

   Fig. 2 is a front elevational view of the drive mechanism.



   Fig. 3 is a cross-sectional view, on an enlarged scale, of the inscribing mechanism, this section being taken approximately along the line III-III of FIG. 5.



   Fig. 4 is a front elevational view on a larger scale of the writing mechanism.



   Fig. 5 is a longitudinal sectional view of the initiator mechanism, taken approximately along the line V-V of FIG. 3.



   The-Fig. 6 is a rear elevational view of the writer mechanism.



   Figures 7 and 8 show a detail of the writer mechanism, in two different positions.



   Fig. 9 is a partial sectional view taken on line IX-IX of FIG. 10.



   Fig. 10 is a partial sectional view of the inscribing mechanism, approximately taken along the line X-X of FIG. 5.



   Fig. 11 is a front view of part of a frame belonging to

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 attached to the insert mechanism - '' z '. ""' Fig. 12 is a rear elevation view, and
Fig. 13 is a side elevational view; one of the stop members. ''. order. Fig. 14 is a side elevational view of the operating mechanism.



   , FIG. 15 is a sectional view of this mechanism, approx.
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 vemént along line XV-XV 'of the, Fig. 16.



   Fig. 16 is a front elevational view of the control mechanism, FIG. 17 is a plan view of this mechanism, in which the components of the totalizer mechanism and of the actuating mechanism have been omitted, in order to show the guide grooves disposed below them.
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  The Fi: g. 18 represents the keyboard.



   As shown, in Fi go, 1, the calculating machine comprises a casing having a base plate 1 supported by feet 2 made of rubber or other elastic material offering good adhesion, fixed to the facade.
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 this lower of this base plate. The casing! "Also has an upper cover 3, preferably made of plastic or other resistant material and of reduced weight, this cover flush with the raised edges of the base plate and being provided with recesses or holes. 'orifices adapted to the internal mechanism of the machine and through which the parts which must be actuated or observed from the outside can emerge from the casing.



  Almost all of the parts that emerge outside the casing, as well as all the other parts of the mechanisms contained within it, are joined to the base plate 1, which makes it possible to open the casing again. -
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 lifting the top cover 3 after, 1st loosening of cap screws (not shown), by which the cover 3 is fixed to the base plate 1, thus making the internal mechanisms of the machine accessible for repair or adjustment. Other details relating to the openings made in the cover 3 will emerge from the following description of the various mechanisms contained in the casing.
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  '' REGISTERED MECHANISM g
The writing mechanism comprises a block of frames 4, 9, 88 and 89, attached to each other to form a rectangular body, by means of bolts passing through holes provided in the corners of all the frames. The frame block rests on the base plate 1, to which it is fixed by suitable means, for example screws (not shown) inserted from the underside of the base plate, passing through the latter and entering one or more. of these frames. The openings
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 The outer frames 6 have the shape shown in FIG. 3, that is to say, have two straight parallel sides and two semi-circular ends.

   The edges of the opening of each of the frames designated by 4 have a groove 7 which penetrates a crta3..re distance into the splice of the frame and forms a guide for the stop members 8 shown.
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 clearly in Figures 12 and 11. -
The outer ends 10 of the stops, distant ends from the opening 6, have a curvilinear contour at the radius corresponding to that presented by the outer edge of the groove 7 in the semi-circular ends.
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 external crioulaires der'l'ouverture 6 ', as well as two sides 11 parallel to each other along their main outer parts, but converging towards each other at the inner end of the stop.

   The inner end surface 12 of the stop facing towards the opening 6 has a
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 nectilinear shape, its distance from the outer end 10 being approximately equal to the radial depth of the groove 7. The thickness of the stop is approximately equal to the depth of the groove 7, measured

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 reed in a direction transverse to the main plane of the frame 4. At the rear end 13 of the stop, two grooves 14 and 15 are provided, arcuate concentrically with respect to the outer edge 10.

   The arcuate faces of the inner groove 14 are parallel, while the outer groove 15 has an outer face perpendicular to the rear face 13 and an inner face, close to the inner groove 14, inclined in the direction of the latter. - re, as clearly shown in Fig. 13. On the front face 17 of the stop 8 is provided a cylindrical tenon 18.



   In the groove 7 of each frame 4 are provided guide ribs for the stops, these ribs comprising, as shown in FIG. 11, a fixed guide rib 20, starting from the left end of the lower rectilinear part of the groove 7, running along this rectilinear part and following the right curvilinear end of this groove, to move towards the end of the right of the upper rectilinear part thereof. This guide rib is parabola at the edge of the opening 6 of the frame 4 and is located, relative to the outer edge 22 of the groove 7, at a distance equal to that which separates the outer end 10 of the stop of the inner groove 14 thereof. Another fixed guide rib 14 runs along the upper half of the left arched end of groove 7.



  An elastic guide rib extends from the left end of the upper rectilinear part of the groove 7 and runs along this groove to a point located near the end of the guide rib 20, of which this point is separated by a distance -slightly greater than one and a half times the width of the stops between their side surfaces 11, this elastic rib being formed by the folded edge 26 of a steel strip 27 extending over a length such that it protrudes on either side of the ends of the guide rib 26, this steel strip being fixed to the frame by screws 28.

   The depth of the groove 7 in the transverse direction of the frame, that is to say, in the longitudinal direction of the machine, is slightly greater behind the elastic guide rib 26, so as to allow this to be pushed back. rib in order to release it from one of the grooves provided in the stops. The rectilinear portions of the guide ribs 20 and 26 have a reduced width compared to that of the arcuate ribs 14 and 15 of the stops by an amount such that these stops can be guided so as to slide easily along the groove 7 in n any position.



   The rear face of the frames 4 provided with grooves 7 in which the stops of another groove 73 are guided, as indicated in dotted lines in FIG. It and represented in FIG. 5. The groove 73 serves to receive and guide the tenons 18 which protrude from the anterior face of the stops 8.



   In the example shown, the machine is designed for 9 decimal orders. In this case, the elastic guide rib 26 must extend over a length such that 9 stops 8 can be placed side by side on this guide rib.



   A longitudinal shaft 30 extends through the centers of the right-hand arcuate ends of the openings 6 of all the frames 4 of the frame block; a certain number of star wheels 32 are wedged on this shaft, each of which acts on the tenons 18 of the stops 8 located in the curvilinear end of the groove 73, which surrounds the star wheel 32.



   Each frame 4 of the frame block has on its lower edge recesses which together form channels extending through the frame block in the longitudinal direction of the machine, namely; a narrow channel 34 intended to receive a rack 35, which will be described later, and a wide channel 36 for a control slide 38, which will also be described later, this rack and this slide being guided in these channels between the frames of 'on the one hand and the base plate 1 on the other hand.

   The frames 4 are furthermore provided with recesses on their upper edges, so as to constitute an upper space 39 in the upper part of the block of frames.

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 The front and rear faces of the frame block are equipped with plates 40 and 41 which respectively have rectangular openings corresponding to the openings 6 of the frames, as well as recesses corresponding to the recesses 34 provided for the passage of the rack 35 and to the ' recesses 36 provided to receive the slide 38, said plates
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 however, closing off the front and rear extnétni ties of the upper space 39.



   The upper face of the frame block is covered with a plate 43- 'which forms the keyboard of the machine. In this keyboard 43 are fixed vertical tubular guides 45 for the rods 46 of keys 47 and 48, of which the ten numeric keys from 0 to 9 are arranged in the usual manner.
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 - as in machines of the reduced keyboard type, that is to say, the numeric keys 1 to 9 are arranged in three rows of three keys each - while a key, "0", of greater width, is situated in front of the front row as shown in Fig. 18.

   The example shown further provides four control keys 48 provided along the left side of keyboard 43, namely a rectify key 50, a subtract key 51, a grand total key 52 and a - key. subtotal
53. There is furthermore provided on the right side of the keyboard space for other control keys, for example a repeat key 54, as an insert.
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 indicated by the dotted line in the fridge 18.



   . The keys are held in their upper position by springs 55 and, if necessary, some of the control keys 48 may be provided with known means, not shown, making it possible to maintain the position.
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 key down until it is released by an appropriate machine function or by hand.



   The anterior and posterior edges of the frames 4 close to the side edges of the space 39, are provided with semi-cylindrical recesses 57 which, when the frames are assembled into a block together form cylindrical recesses, in which are pivotally mounted. the ends of transverse bars 59. These transverse bars have elbows in the form of cranks. Said transverse bars are held resiliently, with the aid of springs not shown, in a position in which their median part is retained near the underside of the keyboard 43. Each of these transverse bars 59 corresponds to a number keys, except for the 0 key; these bars are therefore nine in number.

   Each of the number buttons I to 9 has a plug.
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 town 56 which protrudes from the head of the key and goes downwards through a hole provided in the keyboard 43, so as to rest on the upper face: of the transverse bar 59 which corresponds to the
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 touch. digital in question.



  A trainer or universal bar 60 extends in the space 39, in the longitudinal direction of the machine, that is, perpendicular to the cross bars 59 and below them; the angled ends of the bar d!) drive are pivotally mounted in the front and rear end plates 40 and 41, the front end of this bar extending beyond the front plate 40, as shown in fig. 4.



  This last bar is also urged towards its upper position by a spring, not shown. The numeric key "O" is provided with a pin 58 which runs downwards through the keypad 43 and is supported on the universal bar 60 (FIG. 5). Each transverse bar 59 is provided with a projection 62 which: acts on an inclined slot 63 provided in a thrust member 65 pivotally mounted in a recess 66 provided in the an-
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 of the frames, between the groove 7 and the space 39.

   At one end of the pusher 65 is provided a finger 68 pivotally mounted on this pusher and pointing downwards through a second recess 69 'of the frame, so as to act on the outer end of the stop 8 located at right angles. in the space between the fixed guide rib 20 and the elastic guide rib 26. The finger 68 is resiliently prevented from pivoting in the
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 clockwise, by a spring 70 put s # us¯tens1en between the

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 pusher 65 and the lug 71 integral with the finger 68.



   On the end of the universal bar 60, which extends beyond the anterior plate 40 (see fig. 4), is rigidly mounted an arm 75, on the end of which is pivotally mounted a fixing bracket 77 for a pawl consisting of two folded steel wires 78 and 79 which together form a member having the general shape of a U. The upper ends 80 of these wires are bent at right angles towards the block of - frames, these wires being mounted, using these bent ends, in corresponding housings, provided in the fixing member 77, and being held in these housings by the head of a screw 82.

   The legs or wires 78, 79, of the U-shaped pawl are connected by a spring 84 which tends to move the lower ends of these legs towards each other. The lower ends of said legs are bent in the direction of the frame block and cooperate with a specially shaped ratchet wheel 86, clearly shown in fig 4. This ratchet wheel 86 is keyed to the front end of the frame. The shaft 30 pivotally mounted in the anterior plate 40 and the posterior plate 41 and the front end of which extends beyond the anterior plate 40.



   The frame block comprises a total of thirteen frames, ten of which are of the type indicated by 4 and described above, that is to say, provided with guide grooves 7 for the stops 8. Starting from the front plate 40 , this block comprises the following frames: a frame 9 whose front face is not provided with stops, but whose rear face is provided with a groove intended to receive the tenons 18 integral with the stops 8 of the following frame; a frame 4 of the type described above; a frame 88 of special shape, which will be described below; a frame 9 of the same type as the first frame; andnine frames 4 of the type described above.



   The stops of the second frame 4 of the series of frames described above are actuated by a pusher 91 different from the pushers 65 described above and actuated by "the projections 62 integral with the transverse bars 59. This special pusher 91 is shown. in Figures 9 and 10 and is actuated by a longitudinal bar 93, referred to as the zero stop bar and arranged parallel to the universal bar 60. The ends of the zero stop bar 93 are attached to the ends of the arms 95, mounted at pivoting on the ends, also pivotally mounted, of the universal bar 60, near the inner face of the front plate 40 and of the back plate 41.

   The zero stop bar 93 is biased upwards by a spring not shown and can therefore be tilted down, independently of the universal bar 60 by any of the cross bars 59, when the latter is actuated by any of the humeric keys, with the exception of the '0' key, which only activates the universal bar 60. The arm adjacent to the anterior plate 40 is provided with an ankle 97 facing backwards and resting on the edge of the pusher 91. The latter also differs from the pusher 65 in that it does not include a groove 63. Moreover, the pusher 91, like the pusher 65, is provided with a pivoting finger 68, loaded by a spring.



     TRAINING ORGANIZATION.



   All the operations of the machine aimed at performing a calculation operation, as will be explained in the description of the operation of the machine, which will follow the description of the construction of the latter, are carried out by two driving members, one of which is constituted by the slide 38 mentioned above and the other by the rack 35 which is also referred to above.



   These two drive members are actuated by the drive mechanism shown in Figures 1 and 2. In the front part of the machine are provided two vertical supports 100, fixed on the base plate 1 on both sides. another of the slide 38. A transverse shaft 102.

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 is pivotally mounted in the upper ends of these brackets. 'The respective front ends of the slide 38 and of the rack 35, ends which extend beyond the front face of the frame block, are each joined by a connecting rod 104 at the lower end of an arm 106
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 and 108 respectively.

   The arm 106 connected to the rack 35 is fixed to the right end of the extension of the transverse shaft on the exterior face of the right support 100. Near the interior face of the latter support is rigidly mounted on the transverse shaft 102 a shaft 109, shorter than the arm 106 and carrying at its end a roller 110 mounted to pivot. Between the supports 100, at a point remote from each of these, is pivotally mounted on the shaft 102, a second arm 108, held in its longitudinal position with respect to this shaft by means of spacers. - definitely 112 and 114 which surround this tree.

   This second arm 108 is provided with a finger which supports an ankle 116, on which is pivotally mounted
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 a roller 118. An actuating lever 120, consisting of a flat iron bent in a U so as to present the shape of a stirrup, is pivotally mounted, by means of articulation pins 122 fixed in its branches, in holes.
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 slits provided in the supports 100 below the shaft 102.

   The legs of the U-shaped yoke lever 120 are shaped as shown in FIG. 1, so that they constitute drive cams 124 and 125, with which the rollers 110 and 118 cooperate, the arrangement being such that, when the actuating lever 120 is lowered, the arms 106 and 108 can pivot freely, following the profile of the respective cam, so that the rack 35 and the slide 38 are attracted towards the operator under the action of springs which have been shown in FIG. 1 only. A spring 127 tends to return the actuating lever 120 to its upper normal position, while springs 128 bias
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 tent-les rollers 110 and 118 independently of each other against cams 124 and 125.

   As shown in Fig. 1, the active surface of the cam, which cooperates with the roller 118 mounted on the lever 108 joined to the slide 38, begins to cooperate with the lever 118 at a stage of the pivoting movement
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 of the lever 120, which precedes the start of the entry into contact between the gap-and 110 and the active surface of the cam 124. However, given the greater inclination of this latter surface with respect to its direction of movement, the
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 cam 124 brings the roller 110 to the end of its stroke sooner than the cam 125 brings the roller 118 to the limit of its displacement.

   Thus, the slide begins to move earlier than the rack 35 and still continues its movement.
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 forward movement after the rack 35 has reached the end of its stroke o In addition, during the return stroke of the actuating lever 120 under Inaction of the spring 127, which is more powerful than the two springs 128 taken together, the slide 38 begins its return stroke towards the rear of the machine earlier than the rack 35 and ends this stroke later than the latter.



   At the rear of the frame block is a support 130 for the totalizer 132 shown in FIG. 1, in the form of a pinion with ten teeth, but actually comprising a number of pinions arranged coaxially,
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 equal to that of the decimal orders of the machine, ie, nine orders in the example shown. The totalizer is not part of the invention and can be of any shape. Below the totalizer 132 are a number of drive pinions 134th 'equal to the number of pinions of the totalizer, the pinions 134 being connected to their common shaft 136 by springs allowing elastic rotation of these pinions in the two
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 direction, from a rest position, with respect to 12shaft 136.

   On the right end of the shaft 136 of the drive pinions 13+, one end which extends above the rack 35 is rigidly mounted a pinion 138 which meshes with this rack. The totalizer 132 is mounted on a vertical slide which allows it to be moved vertically by means of
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 means which will be described in the "control mechanism" chapter.



   The slide 38, which runs approximately the entire length of the machine, rests on the base plate 1 and is guided laterally.
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 generally by the supports 100 of the drive mechanism, at the front 19 thereof, by the sides of the lower recess 36 made

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 in the frames of the block described above, as well as by other supports located rearward with respect to this block and which will be described below.



  This slide is provided with various projections and recesses, which serve to actuate various parts of the machine during the movement of the slide forwards and backwards during an operation performed by the machine. The arrangement and shape of these protrusions and recesses will be apparent from the description of the operating mechanism and the mode of operation of the machine.



   ACTION MECHANISM.



   To ensure the transmission of the movement from the drive mechanism to the totalizer, a movement which depends in each decimal order on the digits entered by the numeric keys, nine actuating bars 140 are provided, comprising three main parts, to namely: support members 142, provided at the front ends of these bars and called upon to cooperate with the stops 8 when the latter are lowered, to occlude an active position, following the depression of the number key. correspondent 47; a rack 149 cooperating both with the drive pinion 134 and the totalizer 132; a type or print bar 364 at the rear end of each bar 140.



   As shown in the drawings, these actuator bars 140 are made of a single strip of sheet steel of a thickness just sufficient not to undergo excessive elastic deformations as a result of longitudinal compression.



     The rear end of the air bars or bands 140 is angled upwards, so as to form a support member 142, as clearly shown in FIG. 5. In the sides of this upward angled end bearing member 142 are provided two recesses 143, by means of which the front end of the bars is guided along the edges of the longitudinal slots 144. provided in a guide plate 146 which crosses horizontally the openings 6 of the frames forming part of the frame block, this plate being supported at these two ends outside said block, in a manner which will be described later.

   Below the guide plate 146, the bars run horizontally and parallel to this plate and present, starting from the end 142 forming a support element, first of all a rectilinear part 148; then, a part 149 which constitutes a rack and which is formed by sinusoidal folds or undulations of the strip, so as to have teeth and notches both on the upper face and on the lower face.

   This part of the bar 140, which constitutes a rack with sinusoidal undulation, is interposed between the drive pinions 134 and the pinions of the totalizer 132.; The waves of the rack are constantly engaged with the pinions of- drag 134, but do not engage with the wheels of the totalizer when the latter occupies its lower position. Below the support member 142 forming the anterior end of the actuating bars or bands is a stop tooth 150 integral with the bar or band and having an anterior surface slanting forward and upwards and a vertical posterior surface.

   This stop tooth, which will be referred to hereinafter as the locking stop 150, is intended to allow each bar to cooperate with a locking pawl 152, intended to retain the actuating bar in its initial position when the figure to be transmitted by this bar is "zero", that is to say when no stop 8 occupies the active position in the corresponding decimal order, so as to prevent the bars of these decimal orders from sliding freely in both directions while the machine is in operation. The locking pawl 152 is biased by a spring 154 housed in a bore 156 made in the third frame 88, starting from the front plate 40 of the block of frames; this ratchet is normally kept in engagement with the locking stop 150.

   The locking pawls 152 are pivotally mounted on a transverse shaft 158, itself mounted at the front end of the central passage formed by the openings 6 of the frames forming part of the frame block, these pawls being hand-held.

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 held in place and in alignment with each actuator bar 150 by means of spacer washers 160. The locking pawls 152 each have a portion 162 which lifts up to the vicinity of the top edge of the openings 6, as well as a portion 164 which interlocking. directs forward, to the outside of the anterior plate 40.

   A plate 166, mounted to slide on the outer face of the front plate 40, cooperates with tabs 168 provided on the slide 38, when the latter occupies its normal rest position; on the other hand, the plate 166 comes into contact *, by its upper edge
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 lower with the parts 164 of the locking pawls 152, so as to prevent the latter pawls from coming into contact with the locking stops 150, as long as the slide is in its position.
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 rest.

   The plate 166 is slidably guided on the anterior face of the front plate 40 by means of entails 169 which enclose the anchors 170 which are integral with the anterior plate, the plate 166 being biased by springs 172 which tend to move the plate 166 down, to put it
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 in contact with the slide 380 The cleats 168 have a post surface inclined downwards in the direction of the slide, so as to allow the progressive lowering of the plate 166 at the start of the back and forth movement of the slide. slide 38, as well as the gradual lifting of the plate 166 at the end of the return movement of the slide.



   The components intended to produce the return of the stops to their Inactive position, either after they have completed their function, or
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 with a view to correcting a figure entered using the numeric keys, in reality form part of the entry mechanism; however, these organs have not been described in the corresponding chapter, since, in order to explain their function
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 operation, it was necessary to first describe the organs of management and
The return members of the stops 8 are formed by the guide plate 146, which can be moved upwards with a view to pushing back
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 all the stops 8 which had been lowered to the active position,

   'in which they are within reach of the end support legs 142 of the actuating bars, so as to return these stops to their inactive position, this displacement of the plate 146 being made possible by the fact that the rib guide 26 of the corresponding part of the rows of stops 8 is elastic and can be pushed back by the inclined inner face of the outer groove 15 of the stops 8. For this purpose, the front edge of the stopper plate
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 guide 146 (fridge 4) has an extension 175 'in which is made a recess 176 where a narrow part 177 of the vertical sliding bar 178 engages, guided, by means of a slot 180, on two screws 182 which on the outside of the front plate 40.

   This sliding bar 178 is connected, by a pin 184 and an arm 186, to a shaft 188
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 r, have been pivoted in a bore which passes through the entire block of frames, including the front and rear plates 40 and 41 and whose end located behind the rear plate 41 (see Fig. 6) carries, keyed, a second arm 200 , which is connected to the posterior end 202 angled downwards, of the guide plate 146. To allow the passage of the grab bars.
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 operation through the rear end 202 of the guide plate 11.6, this part of the plate has a corresponding opening 204.

   Outside the front plate 40, the shaft 188 is provided with an arm 206 oriented upwardly and keyed to this shaft, this arm having a surface.
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 end 208 cut obliquely. This oblique surface cooperates with the outwardly angled extremity of a pin 210 fixed in the head of the correction key 50, so that, when this key 50 is lowered, the arm 206 rotates against the edges. clockwise, like
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 shown in f3go 4 and, using the shaft 188, the arms 186 and 200 of the sliding bar 17851 raises the guide plate 146 towards the upper surface of the corridor formed by the openings 6 in the frames of the frame block,

  so that all the stops which had previously been brought into the active position are returned to their rest position. The ele-
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 front end support elements 142 of the actuating bars 140,

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 also found high by this displacement of the guide plate 146, the - which is made possible by a special groove 212 made in the frame 88 in front of the groove provided for the tenons 18 of the stops 8 guided in the first of the nine frames 4 corresponding to the nine number keys from "1" to "9".



   In order to ensure the automatic return of the stops 8 to their rest position at the end of a calculation operation, that is to say, towards the end of: the return stroke only of the slide 38, the lower end of the sliding bar 178 is hinged to a shutter-shaped member 214, which can be rotated towards the front end of the machine, but which cannot pivot in the opposite direction beyond the extension of the bar sliding 178.

   A chin 216, provided on the slider 38 and located near the anterior end of the passage formed by the recesses 36 of the frames of the frame block, has a vertical anterior surface and an inclined posterior surface, so that when the chin 216 moves forward integrally with the slide 38, it pushes the flap 214 in front of it, while, during the return stroke of the slide 38 to the rest position, this chin lifts said member 214 in the form of shutter and therefore also the sliding bar? 178, which has the effect of lifting the front part of the guide plate 146,

     the posterior part of which is also raised thanks to the transmission of the movement from the anterior end via the ankle 184, the arm 186, the shaft 188 and the arm 200.



   In order to cause the return of all the stops 8 which had not been returned to their rest position, while they were in front of the guide plate 146, a special bar 216a is provided which extends longitudinally to through the left side part of the corridor formed by the openings 6 of the frame forming part of the block of frames. The bar 216a has an eccentric surface with respect to the arcuate edges of the openings 6, so as to form a guide surface which gradually approaches the edges of the openings 6 starting from the upper edge of the gap between the guide ribs 24 and 20 and going towards the lower edge of this gap.



   CONTROL MECHANISM.



   On the upper face of the keyboard 43 is pivotally mounted a shaft 220 which extends longitudinally with respect to the row of control keys 48, close to them. As shown in Fig. 3, this shaft is provided with pins 222 and 224, oriented radially and which, in the rest position of this shaft, reach, respectively, up to approximately mid-height between the heads of the adjacent control pins 51,52 and the keyboard 43 and up to the underside of the head of the key 53.



  Thus, when the key 51 or 52 is lowered, the shaft 220 rotates only half the angle by which it is caused to pivot as a result of the lowering of the key 53.



   As shown in Fig. 6, an arm 226 is keyed on the rear end of the shaft 220, behind the rear plate 41, the end of the arm 226 being articulated to the upper end of a rod 228, the lower end of which is connected. to an arm of an angled lever 230, pivotally mounted on an extension 232 of a support plate 234 shown in FIG. 16. The other arm 236 of the angled lever 230 is pivotally joined to a yoke 238 provided on a transverse control slide 240 guided in slots provided in the support plate 234 and in another support plate 242, mounted. on the base plate, on the opposite side of the slide 38.

   It will easily be understood that, depending on whether a control key is lowered or no control key is lowered, the control slide 240 can occupy one of the following three different positions: first (as shown in Fig. 16) a rest position; a position imprinted on it by lowering any of the keys 51 or 52; and, third, when the key

 <Desc / Clms Page number 11>

 
53 is lowered.



   The control slide 240 comprises a vertical wing 243 which starts from the rear edge of this slide and which has at its upper edge three rectangular notches 244, 245 and 246. A shaft 248 is mounted rotatably in the support plates 234 and 2420 Three pegs 250, 252 and
254 are fixed radially on the shaft 248 in such positions that the pin 250 is opposite the notch 244 in the first position of the control slide 240, the pin 252 is in front of the size 245 in the second position of the slide 240 and that the pin 254 is located opposite the notch 246 in the third position of this slide.

   Each of the three dowels 250, 252 and 254 (see Fig 17) is engaged in a peripheral groove 256 of a sleeve 258 rotatably mounted on the shaft 248 within the limits of the notch 246. Each of the three sleeves 258 has a pallet 260 in the form of a spade which extends radially and which has a straight outer edge 262. Springs 264, one end of which is fixed to the shaft 248, while the other end rests on the shaped pallets. of spades 260, maintain these pallets and their sleeves 258 in the position limited by the pin 252 when the latter abuts against the end of the grooves 256, distant from the wings 260.



   On the lower faces of the pallets 260 and the sleeves 258 are provided stops 280 which extend radially from the sleeve and which overhang the upper edge of the wing 243 of the control slide.
240, these stops having a width which, measured in the axial direction of the shaft 248, is slightly less than that of the notches 244, 245 and 246.

   wing 243. Thus, it is clear from the foregoing that, in any of the three positions of the control slide 240, described above in the first position, for example, only one of the stops 280 will be able to engage in the corresponding notch, 244 for example, while the other stops will rest against the upper edge of the wing 243, outside the corresponding notches, ie 245 and 246.



   An arm 266, rigidly mounted on the right end of the shaft 248, is hinged to a bar 268, the lower end of which is guided by a peg 270 which emerges on one side of the bar 268 through a buttonhole. vertical 272 provided in the support plate 242, this pin 270 emerging on the other side of the bar 268, so as to form a pivot for a roller 274. In the rest position of the slide 38, the roller 274 engages in a recess 276 of this slide, which recess has an inclined face 278 (Fig. 14) which progressively goes up to the upper surface of the slide 38.



   Behind the control slide 240 is another slide 282, hereinafter referred to as "coupling slide", which is guided by its ends 284 in corresponding recesses 286 provided in parts 288, projecting forwardly. , from the sides of the fixed support 130 of the totalizer, as shown in Figures 14, 15 and 16. Two pegs 290 projecting rearwardly from said slide 282 are engaged in inclined grooves 292, provided in a front plate 294 of the vertical slide in which the totalizer is mounted.

   Thus, considering Figo 16, it can be seen that when the coupling slide 282 is moved to the left, this front plate 294 and the vertical slide move downwards, so as to put the pinions. 132 of the totalizer engaged with the racks 149 forming part of the actuating bars 140.



   The coupling slide 282 is provided with three vertical bores 296 located near the right end of the edge 262 of each of the spade-shaped pallets 260. Three rods 298, 299 and 300 are each guided to slide in one of the bores 296. These rods have, in the vicinity of their upper end, a recess into which the corresponding pallet 260 engages. The pallets 260 have, in the transverse direction machine, a width sufficient to remain engaged in the

 <Desc / Clms Page number 12>

 recesses of the rods 298, 299, 300 throughout the duration of the lateral displacement of the coupling slide 282.



   The control slide 38 is provided with guide grooves 310, 320 and 330. The groove 310 has a rectilinear part 312 which, if we consider the rest position of the slide 38, extends rearwardly. plumb with the lower end of rod 298, over a length corresponding to the travel of this slide, when the latter is actuated. The depth of this rectilinear part 312 decreases towards the rear.



  From the posterior end of this rectilinear part extends a broken part of the groove, the depth of which, at the posterior end is greater than that of the posterior end, which is adjacent to it, of the part straight line 312 of the throat. This broken part has an oblique section 314, which forms an acute angle with the rectilinear part 312; a longitudinal section 316. parallel to the rectilinear part 312; and, an oblique section 318 which joins the rectilinear part 312 at a small distance from the anterior end of the groove. The depth of the sections 314, 316 and 318 decreases from the posterior end towards the anterior end, so that at the point where the section 318 meets the rectilinear part 312, it exhibits a lesser depth than the latter.



   Considered in the plan view of FIG. 17, the guide groove 320 has the same shape as the groove 310, however, here the depth of the straight portion 322 decreases from the posterior end to a point where the section oblique 328 joins the rectilinear part, while the anterior end of the rectilinear part and the oblique section 328 mentioned last have a greater depth, which decreases along the oblique section 328, of the longitu- dinal section 326 and the oblique section 324.

   The groove 320 has a uniform depth; it extends from the plumb line of the rod 300 over a short length towards the rear, it then deviates, forming an oblique section 334 and is extended by a longitudinal part 336 which extends to a point located in alignment transverse with the posterior ends of the grooves 310 and 320.



    PRINTING BODY.



   As is generally the case in machines of the type considered here, a support 350 for a magazine roll 352 of a web of paper 354 is provided at the upper part of the rear end of the housing 1.



  In the cover 3 of the casing is pivotally mounted a printing cylinder 356, which cooperates, in a manner known per se, with pressure rollers 358 and paper guide blades 360, these rollers and blades being provided at- underside of impression cylinder 356.



   The posterior ends of the actuating bars 140 each have a rectilinear part 362, which supports a type bar 364 carrying, on its upper face, block letters 365. The posterior end of this part 362 of each bar 140 is guided in a guide member 366 in the form of a stirrup, itself guided vertically by the slots 368 in which engages a transverse bar 370, supported by two arms 372 and guided by its ends in vertical slots provided in brackets 374; mounted on the base plate 1 on either side of the slide 38. The lower ends of the arms 372 are pivotally joined to another pair of arms 376, mounted to rotate with the aid of pivotally mounted journals in brackets 374.

   The adjoining ends of the arms 372 and 376 are provided with rearwardly extending extensions having an arcuate stop edge 380. The rear end of the slide 38 is raised and then bent forward, so forging a stop edge 382 at the arcuate edges 380.

   The distance between these edges 380 and the abutment edge 382 of the slide 38 is such that, at the end of its forward stroke, the end 382 of this slide presses the edges 380, thus pushing upwards l rear end of the actuator bar 140, as well as the type bar 364, so that the type

 <Desc / Clms Page number 13>

 365 integral with this bar and facing the extreme lower part of the cylinder 356 is pressed against the latter. Any means known in
 EMI13.1
 For applying printing color to type or for guiding and advancing an ink ribbon between types and the printing cylinder can be employed in conjunction with the printing members described above.

   Such inking means have not been shown in the drawings.



   So that the numbers printed on strip 354 at the underside of cylinder 356 are visible immediately after
 EMI13.2
 Upon printing and prior to the completion of the next printing operation, the invention provides means for rotating cylinder 356 between watch hands immediately prior to printing and returning it to its original position immediately thereafter. this one.

   Ain-
 EMI13.3
 if, the part of the belt on which the press is to be carried out is first turned downwards to the extreme lower part of the cycle.
 EMI13.4
 liIldre ,,, to then be brought back to a location visible from the front of the machine
To this end, the invention provides a cam-shaped projection 384 on the slide 38, this cam having on its front face a low-sloping ramp.

   A roller 386, disposed on the path of the cam 384 determined by the movement of the slide 38, is pivotally mounted on an arm 388 of a two-arm lever, the other arm 390 of which is directed upwards and, by means of a notch 392 encloses a peg 394 provided on an element integral with the impression cylinder 356, this element preferably being a ratchet wheel or member of similar shape, forming part of the interline or paper advancement mechanism for the pressure cylinder.

   It goes without saying that apart from the means for advancing the paper web described above and intended to rotate the cylinder to the read position, other known means can be provided for the advancement. of the paper web a notch, although such means have not been described here.



   In the above description, relating to the construction of the machine, we have omitted, for reasons of clarity, details which are not essential to the fundamental functions of the machine, but it is obvious that this construction is susceptible to developments. and of
 EMI13.5
 improvements which increase the possibilities of the various operations to be carried out by the machine.

   With regard to the totalizer, which does not form part of the invention, all the controls necessary for the correct functioning of this totalizer have also been omitted, such as the transfer of a unit from a pinion of the passing totalizer. from the position corresponding to the figure "9" to that of the figure "0", or vice versa, up to the totalizer pinion located to the left of the first; controlling the stops for the totalizer pinions to the "0" position for extraction of a positive total; the control of such stop members as a function of the positive or negative nature of the amount accumulated in the totalizer, with a view to obtaining a correct reading of a negative total;

   means for recording the same amount several
 EMI13.6
 times successively in the totalisatpur, without the need to re-enter this amount as many times on the number keys; as well as other functions which can generally be performed in machines of this type, described and achievable by means sufficiently known that it is unnecessary to describe them here.



   To facilitate understanding of the construction set forth above, the functions of the machine will be described below.
 EMI13.7
 



  The most common operation performed on machines of the kind described above is the addition operation, which is performed as follows:
ADDITIONS
Starting from the rest position of all the components described,

 <Desc / Clms Page number 14>

 as shown in the accompanying drawings, with the exception of FIG. 8, and stops 8a and 8b of FIG. 5, the amount to be recorded in the totalizer is entered on the numeric keys starting from the left digit of this amount. Assume this is to record the number "102" as a positive item in the totalizer, that is, for addition. To do this, first press the number key "1".



  This has the effect that the corresponding cross bar 59 i.e., the first cross bar from the left in FIG. 5, is tilted downwards by the pin 56 fixed to the head of this key, following which the projection 62 integral with said transverse bar 59, actuates the pusher 65, as shown in FIG. 3, so that the stop 8 located below the finger 68 of this pusher is brought into its lower position, that is to say, active.

   Simultaneously, the universal bar - the 60 is tilted down by the crossbar 59, so that the arm 75 (Fig. 4) is tilted down and, by means of the pawl 78, 79, turns the wheel at ratchet 86 by a sixteenth of a turn, which corresponds to half the angular distance between two adjacent teeth, or in other words to half of the angular movement necessary to move all the rows of stops 8 d 'uncran along their grooves 7 provided in the frames 4, that is to say, a distance corresponding to the width of these stops, this movement being effected using the shaft 30, star wheels 32 and tenons 18 of the stops, engaged between the teeth of these wheels.



  This movement of the stops 8 takes place in the space between the fixed guide rib 20 (Fig. II) and the elastic guide rib 26. When the pawl element 78 has produced this half-notch of the rotation of the ratchet wheel 86, the opposing ratchet member 79 has moved past the next tooth of the ratchet wheel and engaged in the notch behind that tooth. When the lowered numeric key is released, the crossbar 56 is returned by its spring (not shown) whereupon the projection 62, which is integral with it, returns the pusher 65 to its initial position, as shown in particular in Figure Fig. 7.



  Simultaneously, the universal bar 60 is returned to its initial upper position by means of its return spring (not shown), so that the arm 75- (Fig. 4) is tilted downwards and the branch 79 of the pawl makes effect with the ratchet wheel 86 the other half of its notch of rotation, thus moving all the rows of the stops 8 by the second half of their path, so that the lowered stop is brought above the first bar actuation 140 from the right, as shown in FIG. 3.



   The downward tilting of the crossbar 59 also results in the downward tilting of the zero stop bar 93, (Figures 3, 9 and 10), thereby actuating a special pusher '91 which, at the Using his finger 68, moves the corresponding stop 8b downwards, which is obviously moved, together with all the other stops, by a notch along the guide groove provided in the corresponding frame.



    The numeric key "0" is then lowered and, as this key controls, using the rod 58, only the universal bar 60, all the rows of stops move one notch under the action of the arm. 75, of the pawl 78 SI 79, of the wheel 86 of the shaft 30 (Fig. 4) of the star wheels 32 and of the tenons 18 (Figo 3), maize., Without any stop being brought to its po - lower position. Since the zero stopper bar 93 is not actuated by any crossbar 59, no stopper is moved to its active position in the front end row of stops.



   Finally we lower the number key "2", which has the effect of lowering a stop 8 of the second row starting from the front of the nine rows of stops which correspond to the number keys 1 to 9, that is that is to say, in the row immediately to the right of the lowered stopper 8a, shown in FIG. 5, all the stops being simultaneously advanced one step forward of the lower part of the rows.



  Simultaneously, a stop 8b will be brought to the active position by means of

 <Desc / Clms Page number 15>

 the zero stop bar 93 and a special pusher 91.
 EMI15.1
 After the registration operation has been carried out in this way, the stop 8a of the first of the nine rows of stops, which row corresponds to
 EMI15.2
 the numeric key cl ", has been moved to a position in which this stopper is located opposite the third aeration bar 140 starting from the right in Fig. 3, this bar occupying its automatic position, while the stopper making part of the second of the nine rows,
 EMI15.3
 that is, the row corresponding to the number key 2, occupies its active position opposite the first push bar on the right, (Figo 3).

   In the extreme front row of the stops 8b (to the left of Fig. 5), the stops facing the third and the first bar
 EMI15.4
 actuating Z40 from the right, Figo 3, occupy their active positions o All the other buttas occupy their rest positions, i.e. their inner guide groove 14 (Figo 13) is engaged on the guide ribs 20, 24 or 26 (Figo 11), with the exception of the stops situated in the gap between the ribs 24 and 20, which stops can
 EMI15.5
 wind to occupy any position without disturbing the operation of the machine. All the stops thus brought to the active position are engaged on the elastic guide rib 26.



    When it comes to rectifying the amount written on the keys, the rectification key 50 (Figs 4 and 18) is lowered. Pin 210 of this key rotates arm 206 to the left, rotates shaft 188 and, using arm 186 and slide bar 178 (Figo 4) and arm 200 (Figo 6), lifts the plate 146 in which the
 EMI15.6
 snack bars.

   The ends 142, forming support elements, of the actuating bars (Figo 5), enter the groove 212, so that the plate 146 can be lifted against the upper edges of the openings 6 made in the frames and brought back to the bottom. rest position all the stops 8 which had been brought to the active position, the elastic guide rib 26 then being pushed back by the sloping surfaces of the outer grooves 15 of the stops. The correct amount can now be entered as described above.



   Since this is an addition, none of the control keys 51, 52 or 53 will be lowered.



   To perform an addition operation, we rotate the
 EMI15.7
 operating lever 120 downwards by lowering it using the palm of the hand with which the upright has been inscribed on the keys o The roller 118 (Figo 2) first reaches the profiled surface 125 (Fig. 1 ) pre-
 EMI15.8
 view of the left branch of the U-shaped actuating lever 120, which allows the arm 108 to move clockwise, thereby moving the slide 38 a certain distance towards the rear.
 EMI15.9
 before, this prior to establishing contact between the roller 110 and the profiled surface 124 provided on the right arm of the operating lever 120, the latter contact allowing movement of the rack.
 EMI15.10
 1st 35 around 19 before.

   These displacements take place under the inaction of springs 128 acting respectively on arms 108 and 106.



   The following operations take place during this initial part of the movement of the slide 38, and before the rack 35 begins to travel forward.
The bosses or tabs 168 of the slide 38 (Fig. 5) pass beyond the plate 166, which moves downward under the inaction of the springs 172, which causes the locking pawls 152,
 EMI15.11
 which has not been retained in their inactive position, shown in FIG. 5, by a stop 8b positioned simultaneously with the stops which have been brought to the active position in the rows corresponding to the
 EMI15.12
 Numeric keys 1 to Di9 can be rotated counterclockwise, as shown in Fig. 5.



   In the example shown above, in which we have entered

 <Desc / Clms Page number 16>

 the number "102", the locking pawls 152, which face the first and third actuator bars 140, starting from the right of FIG. 3 are retained in the rest position, while all other locking pawls 152 have been made to pivot so as to engage behind the locking stopper 150 provided on the underside of the corresponding actuating bars.



   The chin piece 216 integral with the slide 38 also moves beyond the component 214 in the form of a shutter provided at the lower end of the sliding bar 178 and causes this member to pivot forwards, without actuating. the sliding bar. In the operating mechanism (Figs. 14, 15 and 16), the sloping side 278 of the recess 276 pushes the roller 274 upwards, which has the effect of turning the shaft 248 clockwise. les of a watch, considering Figs. 14 and 15, through bar 268.

   As a result, the sleeves or collars 258 are released by their respective pins 250, 252 and 254, so as to be able to rotate with the shaft 248; however, only the sleeve 258, close to the right end of this shaft, can turn integrally with the latter, thanks to the fact that its stop 280 penetrates into the notch 244 of the wing 243 of the slide rail. control 240, while the other sleeves lady are maintained in their initial positions by leffait that their stops 280 rest on the upper edge of the wing 243, outside the corresponding notches 245 and 246. Thus, the pallet 260, integral with the- manohon 258 which can rotate freely under the action of the spring 264, exerts a downward pressure on the corresponding rod 298,

   so that the lower end of the latter engages in the anterior end of the groove 310 provided in the slide 38 and shown in FIG. 17. The other two rods 299 and 300 are maintained in their upper position by the fact that the pallets 260 of the corresponding sleeves 258 are retained in their initial position by their stops 280. The rod 298 is then guided by the rectilinear part of the rod. the groove 310, up to a point where this rod is in transverse alignment with the points where the longitudinal sections 316 and 326 of the grooves 310 and 320 meet the oblique sections 318 and 328 of these grooves.

   As long as the rod 298 moves in the rectilinear part 312 of the groove 310, the coupling slide 282 remains in the initial rest position, thus maintaining the vertical slide 294, which supports the totalizer, in its upper position, such that the pinions 132 of the totalizer are kept out of engagement with the parts 149, forming racks, of the actuating bars 140.



   At this point in the travel of the slide 38, the roller 110 of the drive mechanism (Figs. 1 and 2) reaches the profiled surface 124 and the rack 35 begins to travel forward in the manner described. , while the slide 38 continues its forward movement. During the forward travel of rack 35, pinion 138 and shaft 136 complete one revolution. Drive sprockets 134, resiliently actuated by shaft 136, tend to move actuator bars 140 rearward.

   However, the actuating bars retained by the locking pawls will not perform any movement, while the other bars will be stopped by the stops 8 placed in position, this after a stroke corresponding to the number entered in the order. appropriate machine decimal. During this movement, the actuating bars do not actuate the totalizer pinions which are not in engagement with these bars.

   Thus, in the numerical example shown above, only the first and third actuator bars, starting from the right, are moved, the first bar moving until it is stopped in the second of the two. nine rows of stops, that is, the row corresponding to number key "2", while the third bar moves until it is stopped in the first row of stops, c 'is to say the one which corresponds to the number key, that "1".

   Then, the actuation bars are retained by their bushes.

 <Desc / Clms Page number 17>

 respective tees, the drive pinions 134 being also retained thereby, while the pinion 138 continues its rotation until it has completed one full revolution, which is made possible by the
 EMI17.1
 elastic connection between the drive pinions 134 and the shaft 136.



  When the roller 110 reaches the inner end of the contoured surface 124, that is, after the rack 35 has made its travel forward, the slide 38 has reached a position in which the rod 298 is moved. located in the section 312 of the groove 310 (Fig. 17), in transverse alignment with the points where the longitudinal sections 316 and 326 of the grooves meet the oblique posterior sections 314 and 324, respectively. The rack does not move during the remaining part of the stroke in front of the slide 38.

   During this last part of the forward stroke of the slide, the rod 298 slides into the extreme posterior portion of the straight portion 312 of the groove 310 and, at the end of said stroke, engages in the end portion , deeper, of the oblique section 314 of this gorge. Still during this last part of the travel forward of the slide 38, the cam-shaped boss 384 (Figo 1) lifts the roller 386 and, with the aid of the arms 388 and 390 and the clamp.
 EMI17.2
 ge 394, rotates the impression cylinder 356, so as to bring the part of the strip, located in the reading position outside the cover 2, to the printing position, which corresponds to the generator
 EMI17.3
 lower end of the cylinder.

   Then, the stop edge 382 of the slide meets the curvilinear edges 380 of the arms 372 and 376 and presses the characters 365 of the type bars 364, located at the lower angle of the axis of the cylinder 356, against the web. of paper, so as to print the signs corresponding to the number written on the numeric keys, and therefore also to the movement of the actuating bars in the different decimal orders of the machine.
When the actuating lever 120 is released and returned by relaxation to its initial rest position under the action of the spring 127,. the slide 38 begins its rearward return stroke, the arrangement being such that, after this slide has completed part of its rearward stroke,

     the rack 35 begins its return run towards
 EMI17.4
 The rear During this first part of the rearward travel of the slide 38, the rod 298, which is now engaged in the part 314 of the groove 310, moves to the left so that the sliding bar 282 also moves to the left and, by means of the pins 290, pushes down the vertical slide 294 which supports the pinions 132 of the totalizer, thus bringing these pinions into engagement with the parts 149, forming racks, actuating bars 140.



  During this first part of the backward run the gli-
 EMI17.5
 sière 38, the printing members are also brought back. to their initial position and the printing cylinder is driven in rotation so as to bring the number printed on the underside of this cylinder into the
 EMI17.6
 1 "operator visual field
When, after this first part of the rearward travel of the slide 38, the rack 35 begins its rearward travel, the pinion 138 and the shaft 136 are caused to rotate against the needles.
 EMI17.7
 of a watch (considering Figo 1) and, after the shaft 136 has rotated to the desired position, in which the drive pinions have been stopped during the stroke in front of the rack 35, these
 EMI17.8
 input gears,

  are driven in rotation against the hands of a watch, until they again occupy their original positions, which has the effect of returning the star bars to their initial or resting position. drive 134, the totalizer pinions .. which are now in contact
 EMI17.9
 with the parts 149, forming at the masters, the actuation bars. 140, are caused to rotate according to the displacement of the actuation bars.: ment, so that the number initially written on the numeric keys is registered in the positive direction in the totalizer.

 <Desc / Clms Page number 18>

 



   After the rack 35 has made its return stroke backwards, the rod 298 is returned to the right by the oblique section 318 of the groove 310. As a result, the sliding bar 282 is also returned to the right. its rest position, that is to say to the right, while the vertical slide 294 is returned to its upper rest position by means of the pins 290 and the slots 292, thus setting the pinions 132 of the totalizer out of engagement with actuator bars 140.

   Then, when the rod 298 si / is engaged in the portion of greater depth of the rectilinear part 312 of the groove 310, the roller 274 descends along the slope 278 of the recess 276 made in the slide 38 (Fig. 14) and returns the shaft 248 to its initial position, so that the rod 298 is released from the groove 310, to return to its initial rest position.

   During this last part of the rearward travel of the slide 38, the mantlet 216 (Fig. 5), provided on this slide, reaches 111 element 214 in the form of a shutter, which cannot be pivoted. rearwardly and therefore the latter member is caused to lift the anterior end of the guide plate 146, as well as, through the arm 186, the shaft 188 and the arm 200, the posterior end of this plate. As a result, the tutés brought into an active position at the start of the addition operation are returned to their upper position, the registration mechanism thus being emptied.

   In the last part of the rearward travel of the slide 38, the tabs 168 provided thereon act on the guide plate 146, with a view to lifting the latter, thus causing all the tabs to swing. locking 152, so as to bring them to the inactive position, shown in FIG. 5.



   At this moment, all the components are returned to their initial or rest position, with the exception of the totalizer pinions, which have been turned by an amount corresponding to the recording, in the direction of 1 'addition, of the amount entered on the numeric keys at the start of 1-' addition operation
SUBTRACTION AND TOTALIZATION.



   To carry out the subtraction, the number to be deduced is entered on the numeric keys in the manner described in connection with the addition operation. After entering the number on the keys 47, the subtraction key 51 is lowered. This has the effect of lowering the pin 224 integral with the shaft 220 (FIG. 3), this pin causing the shaft 220 to turn. an angle corresponding to approximately half the distance between the head of the key 51 and the keyboard. This rotation of the shaft 220 is transmitted by the arm 226 (Fig. 6), the bar 228 and the lever 230 to the control slide 240 (Fig. 16), so as to move this slide to the right, in such a way that the notch 245, which faces the stop 280 integral with the sleeve 258, comes to be located approximately opposite the middle of the shaft 248.

   This has the effect of moving the notch 244 away from the solid stopper of the right sleeve 258. The subtraction key 51, or only imports another member forming part of the transmission between this key and the slide rail. control 240, is maintained in this position by means of any type (not shown), which maintain the slide 140 in the position which has been given to it, at least until the priming of the subtraction operation, this slide then being released by any suitable system or manually.



   When, at this moment, the actuating lever 120 is lowered, all the functions previously described with regard to the addition operation are repeated, except that the rod 299 (Figo 17) is and not the rod. 298 which is lowered so as to be guided by the groove 320. Thus, during the forward stroke the slide 299 slides in the oblique section 328 of the groove 320, moving the coupling slide 282 at the start of the race forward and thereby bringing the totalizer pinions into engagement with the actuating racks 149, before the latter

 <Desc / Clms Page number 19>

 begin to move backwards.

   At the end of the forward travel of the slide 38, when the pinion 299 has reached the posterior extreme point of the groove 320, the pinions of the totalizer are again out of engagement with the actuating racks and remain in this position for the return stroke, towards the rear, of the slide 38, during which the rod 299 slides in the rectilinear part 322 of the groove 320.



   Thus, the number entered on the numeric keys has been recorded in the totalizer in a direction opposite to that in which the number to be added was recorded during the addition operation.



   For the totalization, the totals key 52 is lowered. As this key activates a pin which occupies on the shaft 220 (Figo 3) the same angular position as the pin 224 assigned to the subtraction key 51, or well, this last peg is placed between the keys
51 and 52 and extends under the heads of these two keys, the operating mechanism is operated in the same way as for subtraction.

   However, the key 52 is connected to members not shown and intended to maintain all the locking pawls 152 in the inactive position, for example, by locking the plate 166 in its upper position or by raising the guide plate 146 d. 'a small distance sufficient to lift the locking stops 150 so that they are out of the reach of the locking pawls 52, but insufficient for the ends 142, forming support elements, of the bars 148, to engage dais the groove 212. The key 52 also actuates means not shown, but generally known, intended to prevent the pinions of the totalizer from returning beyond their "0" position.

   When the actuating lever 120 is at this moment operated without any number being entered on the numeric keys, all the actuating bars can move freely backwards, until they engage with the pinions of the totalizer and are stopped by these pinions when they reach their respective "zero" positions. Thus, each actuating bar has been moved by a distance corresponding to the number contained, in the considered decimal order of the totalizer, this number being printed 4'la end of the race in front of the slide.

   The totalizer pinions 132 do not move during the return stroke, but remain in their "zero" position while the totalizer actuator bars are recalled as described above.
To obtain a subtotal, we lower the subtotal key 53. This key rotates the shaft 220 (Fig. 3) ppr 1? Intermediate the pin 222, fasting angle corresponding to the entire distance. between the head of the key and the keyboard 43, so that the control slide 240 moves to the right, so that its left notch 246 is placed opposite the stop 280 integral with the left sleeve 258, so that only the rod 300 now cooperates with the corresponding groove 330.

   When running forward and backward on slide 38, coupling slide 282 moves such that it runs to the left at the start of the forward stroke and only returns to the right at the start of the forward stroke. end of the backward travel of the slide 38. Thus, the totalizer pinions will be kept in engagement with the actuator bars both during the forward travel and during the reverse travel of the rack 35. The sub-totals key actuates the same members of the totals key 52, so as to keep the locking pawls 152 ineffective and to stop the pinions 132 of the totalizer in the "zero" position.

   Thus, during a sub-totalization operation, the number accumulated in the totalizer will be extracted by the actuator bars during their backward stroke, will be printed at the end of this last backward stroke .. which corresponds to the travel forward of the slide 38, and will then be recorded again in the pinions of the totalizer during the return travel of the rack 35 and of the slide 38. At the end of this last run, all the components are returned to their rest position, while the totalizer pinions come to occupy the same positions as before

 <Desc / Clms Page number 20>

 the sub-totalization operation.



   CLAIMS.



   1. Calculating machine of the reduced keyboard type, comprising stop members arranged in a certain number of rows, corresponding - to the number of units of the numbering system for which the machine is designed, these stop members being called upon to be brought individually into an active position by number keys provided on this keyboard, the arrangement being furthermore such that, each time a stop member is brought into its active position, it is moved one notch to be brought into the highest decimal order of the machine, this movement being effected tram - versally with respect to the direction of movement of actuators which perform an outward and return stroke,

   characterized in that lesdis stop members of each of said rows are guided, with a view to their displacement step by step, in fixed guides, in direct contact with each other, the stop members located in a limited part of each cone of these guides being called upon to cooperate with drive members so as to be brought by them step by step to a higher decimal order, while the stop members located outside this limited part are moved along these guides by the pressure exerted on said members by the stop members subjected to the action of said drive members.


    

Claims (1)

2. Calculating machine according to claim 1, characterized in that the stop members located in the limited part of each of said guides cooperate with common drive means, for the synchronized movement of the stop members along these guides. . 3. Calculating machine according to claim 1 or 2, characterized in that the stops located in the limited part of each of said guides are subjected to the action of a toothed wheel mounted on a common shaft extending. transversely with respect to the guides and in kinematic connection with the numeric keys, with a view to moving all of the stop members by one step towards a higher decimal order each time a stop member is brought into an active position. 4. Calculating machine according to claim 3, characterized in that the common shaft is controlled by a ratchet mechanism engaged or released, on each lowering of a numeric key, by a body actuated in cpmmun by the lowering of the keys. digital. 5. Calculating machine according to claim 1, characterized in that the stop members located in said limited part of the guides are actuated directly by pawls controlled by a common drive mechanism, engaged or released on each lowering of. a number key. 6. Calculating machine according to any one of claims 1 to 5, characterized in that the guides for the stop members are curvilinear or bent and have an intervention sector in which these stop members can cooperate with the actuating members. , the other inoperative parts of these guides being placed above or below said intervention sector. 7. Calculating machine according to claim 6, characterized in that the guides for the stop members are curvilinear or folded, so as to form endless closed guides, these stop members; being designed to move step by step along these guides, in a closed circuit. 8. Calculating machine according to claim 6 or 7, characterized in that the guides for the stop members have at least a straight part, which forms the sector of intervention of these guides. <Desc / Clms Page number 21> 9 Calculating machine according to claim 8, characterized in that the guides for the stop members have two parallel rectilinear parts, connected at their ends by parts in an arc of a circle. 10 - Calculating machine according to claim 3 or 9, charac- terized in that the stop members in at least one of the arcuate parts of the guides cooperate with toothed wheels mounted on an aibre passing through the geometric centers of said parts. in an arc. 11 - Calculating machine according to any one of the preceding claims, characterized in that the stop members are provided with two different guide means called to cooperate selectively with guide means in each of said guides, so that each stop member can be moved along said guide while occupying either an inactive position or an active position, the arrangement being such that, in each of these positions, one of the guide means of the stop members cooperates with the guide means provided in said guides. 12 - Calculating machine according to claim 11, characterized in that each of the stop members is provided with two guide grooves which selectively cooperate with a guide rib integral with said guide, this guide rib having a solution of continuity to the location of the guide where the stop members are moved from their inactive position to their active position; this guide rib being elastic in the sector of intervention of the guide, sector in which the stop members are able to cooperate with the actuating members, when these stop members occupy the active position; the arrangement being such that the guide groove, provided in the stop member which cooperates with the guide rib when this stop member is in the active position, is inclined towards the other guide groove, so so that the stop members brought to the active position and located in the intervention sector of the guide can be pushed back to their inactive position inside the guide. 13 - Calculating machine according to claim 12, charac- terized in that the elastic part of the guide rib is formed, in the area of intervention of each of the guides, by the folded edge of a spring steel blade attached. guiding by its ends which extend beyond said guide edge. 14 - Calculating machine according to claim 13, charac- terized in that one end of the spring steel blade, of which the elastic part of the guide rib is integral, spans the solution of continuity of the guide rib. and is formed so as to exert an elastic pressure on the stop members located in this solution of continuity, so as to allow the displacement of these members to the active position, while preventing them by friction from coming to occupy them - even this position when they are not actuated. 15 - Calculating machines according to any one of claims 7 to 14, characterized in that the guides for the stop members are formed by grooves made in the marginal parts of the internal openings of the frames, the actuating members being guided to move in both directions through these openings of said frames. 16 - Calculating machine according to claim 15, charac- terized in that the frames are assembled so as to form a rigid block, the grooves for the stop members being formed between the marginal part of a frame and the part. marginal of an adjacent frame, the actuators being guided to move in both directions through the passage formed by the openings of the frames in said block of frames. 17 - Calculating machine according to claim 15 or 16, charac- terized in that the actuators are! formed by bars <Desc / Clms Page number 22> one end of which, which extends in said passage formed by the openings of the frames, is provided with a support element intended to cooperate with the stop members brought to the active position in the decimal order corresponding to each of these actuator bars. 18.- Calculating machine according to any one of claims 12 to 17, characterized in that a thrust member is mounted on the member (frame) which is integral with said guide, facing the location of this guide. where the stop members of each guide move from the inactive position to the active position, these thrust members being linked kinetically to a transverse bar which can pivot around its ends forming a crank, each of these bars being connected directly to the corresponding numeric key. 19 - Calculating machine according to claim 18, in laquel- the guides are formed by grooves made in the marginal parts of the openings of the frames assembled in a block of frames, charac- terized in that a plate forming the keyboard which supports the numeric keys is mounted on the frame block, the latter being provided in its upper part with a recess intended to receive the transverse bars and the thrust members with a view to moving the stop members of the position inactive in the active position. 20 - Calculating machine according to claims 16 to 19, charac- terized in that the intervention sector of the guides is formed by the rectilinear upper edge of the guide grooves provided in the frames; in that the stop members which, considering the direction of movement of these members in said grooves, are arranged in the arcuate part of the guide grooves situated upstream of said sector of intervention of these grooves, are subjected to the action said drive members; and, in that the place of the guide grooves, where the guide rib presents a solution of continuity in order to allow the displacement of the stop members from the inactive position to the active position, lies between the sector of arched drive and the straight line of the guide grooves. 21 - Calculating machine according to any one of the preceding claims, characterized in; that a plate, which extends in front of all the intervention sectors of the guides for the stop members, is mounted to move transversely in the direction of said sectors of intervention, to determine the return to the inactive position of all stop members which occupy the active position in the intervention sector. 22 - Calculating machine according to any one of claims 16 to 20 and 21, characterized in that said plate has a certain number of guide elements, slots for example, which extend parallel to the bars of actuation and the direction of movement in both directions thereof and which serve to guide the ends of the actuating bars where the latter are provided with support members intended to cooperate with stop members brought into position active. 23 - Calculating machine according to claim 22, charac- terized in that the actuating members are formed of steel strips, one end of which, which extends in the passage formed by the openings provided in the frames, is folded in the direction of the intervention sectors of the guide grooves for the stop members, to form a support element intended to cooperate with the stop members brought to the active position, this folded end further comprising other means of guide which engage on the edges of recesses provided in the plate called to be moved in the direction of said intervention sectors in order to return to the inactive position the stop members therein, said guide means provided on said bent ends of the actuating bars being established so as to allow a slight pivoting of the actuating bars around said ends forming support elements. <Desc / Clms Page number 23> 24 - Calculating machine according to claim 23, characterized in that the ends of the actuating bars, opposite the ends. forming support elements of these bars and cooperating with the stop members brought to the active position, are provided with a row of printing characters and are intended to be pressed against a printing plate by a printing mechanism actuated afterwards. that the actuating bars have been brought into their positions in which their support member ends meet the stop members brought into the active position. 25 - A calculating machine according to claim 24, wherein the ends of the actuating bars, provided with printed characters, extend below a cylindrical printing plate and print on a web of paper passing over the face. lower part of this platen, the latter being intended to rotate, before printing, from a position in which the part of the web of paper which is intended to receive the printing, is exposed to the view of the operator. , to a position located on the underside of the platen, and to return, after printing, to a position in which said location is exposed to the view of the operator. 26 - Calculating machine according to claims 23 to 25, charac- terized in that the actuating bars have, between their ends, an intermediate part wavy in sinusoidal curves and forming a rack, one face of which is actuated by driving pinions resiliently mounted on a shaft, so that these racks are first driven in one direction and then in the opposite direction during a calculation operation, the other face of these racks being called upon to cooperate with the totalizing pinions of one or more mobile totalizers so as to be put into and out of engagement with said racks. 27 - Calculating machine according to claim 26, charac- terized in that the shaft of the drive pinions is designed to be actuated by drive members controlled by means of a lever or a key placed. at the front of the keyboard, preferably symmetrically with respect to the actuator bars. In annex 9 drawings.