US3080111A - Gelling - Google Patents

Description

H. GELLING- 3,080,] 1 1 OF THE DECI March 5, 1963 MECHANISM FOR CONTROLLING THE PRINT MAL POINT WITH PRINTING CALCULATING MACHINES, IN PARTICULAR WITH INVOICING MACHINES 4 Sheets-Sheet 1 Fiied Aug. 51", 1959 mm 3 mm mm wm 3 mm km a INVENTOR.

March 5, 1963 H. GELLING 3,080,111

MECHANISM FOR CONTROLLING THE PRINT OF THE DECIMAL POINT WITH PRINTING CALCULATING MACHINES, IN

PARTICULAR WITH INVOICING MACHINES Filed Aug. 51, 1959 4 Sheets-Sheet 2 6.9 6.9 6 70 Fig 72 IN VEN TOR.

WWW

March 1963 H GELLING 3,080,111.

MECHANISM FOR CONTROLLING THE PRINT OF THE DECIMAL POINT WITH PRINTING CALCULATING MACHINES, IN PARTICULAR WITH INVOICING MACHINES Filed Aug. 31, 1959 4 Sheets-Sheet 5 Fig.4 Fig.5

IN V EN TOR.

3,080,] l 1 DECIMAL H. GELLING March 5, 1963 MECHANISM FOR GONTROLLIN Filed Aug. 31, 1959 4 Sheets-Sheet 4 IN V EN TOR.

MECHANISM FOR CONTRGLLING THE PRINT OF THE DEtllMAL POINT WITH PRZNTING CALU- LATING MACHENES; IN PARTICULAR WITH 1N1 The invention relates to a mechanism for controlling the print of the decimal point with printing calculating machines, in particular invoicing machines, whereby the print of the decimal point is to be brought about between definite decimal orders of the amounts to be printed.

The object of the invention is to automatically select, in a calculating machine for subsequently effecting calculations each of which involving the same definite sequence and number of amounts ofvarying decimal powers and each amount having a definite ordinal decimal point position and definite comma positions, the printing places for the ditterent decimal points and decimal commas by means of a pre-settable mechanism.

' For instance, the calculations with invoicing machines will be carried out, as a rule, in such a Way, that each calculating item will be calculated by a multiplication of a value of quantity, for instance, number of pieces, metres, kilogramrnes, hectolitres, with the price of one piece, price of one metre, or price of one kilogramme in dollars, theamount of the product, likewise appears in dollars. Accordingly, at first, the value of quantity will be introduced into the machine, in which, as a rule, with a number of pieces no decimal point, with values in metres a decimal point between the second and third order, and withvalues in kilogrammes a decimal point between the third and fourth order, from the right, is to be printed. This may be performed, for instance, by depressing a particular decimal point key.

In the second place, the price customarilly follows in dollars, which requires a print of the decimal point between the second and the third order, whilst in the third place, the value, namely the result of the multiplication of the two first values in dollars, the decimal point is likewise to be put between the second and the third order from the right.

it is well known in the art to place the decimal point, besides by means of particular keys and particular type carriers coordinated thereto, to'efiect by several 'other means. For instance, a single type-carrier may be used which will be placed into the proper order and put,"'in this order, to action, or by selecting for printing one of; several decimal point type-levers by means of a common setting means. In order now to simplify this selecting work in calculations of the above mentioned kind and to avoid to set by hand the. ordinal position of the decimal point for each single amount, when its decimal point position is to be changed with respect to the preceding amount, a control member, rotatably mounted-in the machine is provided for having rows of control elements by which it is automatically and stepwise turned in order to selectively bring said rows of control elements in cooperation with the printing mechanism for the decimal signs, means being provided for to restore the control member to its home position after termination of each sequence of amounts.

Thereby, the restoring of the control member to its home position will be effected by means of special setting means of gear members rendered active during the last operation of the machine of a sequence of amounts.

The controlmeinber may be provided with more than 3,b80,l ll

Patented Mar. 5, 19%3 ice one set of control elements of more than one sequence of types of amounts having different ordinal positions of the decimal point which are selectively adjustable into working preparedness.

The mounting of the control member and of the control elements may be brought about on different ways, for instance, by means of electric contact devices. The control elements may be placed singly moveable on the control member, or the control member may be, in a manner known per se, formed cylindrically having the control elements arranged on it in the form oi elevations or recesses in definite positions, forming operative com nections with definite decimal point printing members on the rotation of the control member.

With the last mentioned arrangement the control member, according to the invention, is provided with an actuating gearing, stepwise actuated by means of a drive means rocked during each operation of the machine, before the printing of the amount, and restored into its home position by adjusting special setting means or drive means during the last operation of the machine of the amount sequence.

The control member further is settable, by means of a handle, into any rotary position. Among these rotary positions there is at least one position in which the actuating pawl is without operative connection with the actuating gear. Several of such inactive positions may be provided for on the arrangement of several sets of control elements.

For the special purposes of an invoicing machine amount sequences, having but two diitcrent order posi tions or" the decimal point, according to the invention, the control member suitable for opposite directions of actuation, is connected with two oppositely acting actuating pawls, cooperating with a rocking drive means and being alternately engageabl with it through a setting member.

Therewith, the two actuating pawls which engage into the path of the rocking member from above or from below, respectively are attached each to one end of a reversing lever, one end of which is connected with a rod reversing the control member into one or the other of two positions by means of an actuating lug engaging the control member. Between the two actuating pawls projections of a setting key engage; by depressing the latter, the engagement of the pawls with the drive member will be reversed. Further features of the invention result from the following description of an example of embodiment of the invention.

In the accompanying drawing:

FIG. 1 is a vertical longitudinal section through the machine with the decimal point control member and the printing organ being adjusted to decimal point printing.

FIGS. 2 and 3 are partial views of FIG. 1 with the decimal point control member and the printing organ adjusted to comma-print or non-print, respectively.

FIG. 4 is an unrolling of the circumference of the cylindrical control member.

FIG. 5 is a diagrammatic top view of the controlling organ Withthe digit type carriers, decimal point printing organs and a portion of the platen.

FIG. 6 is a side elevational view of a control-ling mechanism for amount sequences having two different decimal point order positions, adjusted to the first decimal point position.

FIG. 7 is a corresponding view in the second decimal point order position. 7

*FIG. 8 is a side elevational view of a controlling mechanism for any number of order positions of the decimal point in one sequence of amounts.

The structure of themachine corresponds to that of an adding machine having setting organs, a totalizer and a printing mechanism for printing the values on a platen. The setting is effected by means of digit keys 1 (FIG. 1) in ten-key arrangement and of set pins 2, arranged in denominational rows in a transversely shiftable set pin carriages 3. The stems of the ten digit keys'are arranged in a row'below which the rows of set pins will be stepwise adjusted upon the transverse movementof the set pin carriage. On depressing of a digit key in one of the positions of the carriage the set pin corresponding to thedigit of the depressed key will be moved down as is shown in FIG. 1 in dotted lines. The value adjusted in the setpin carriage will be transmitted to-vertically shiftably mounted type-bars 7, over intermediate wheels- 6, by means of differential members 5, drawn to the right by springs 4. The general construction and the operation ofthe pin carriage setting is known in the art, see for instance U.S. patent specification No. 2,917,232 col. 4, line 20 to col. 5;, line 42, and need not be further described. The intermediate wheels 6, are mounted on a stationary axle 8. The differential members 5 are guided onstationary bars 11 and 12 by means of slots 9, 10. On each end of a main drive shaft 13, a crank arm 14 is rigidly mounted, each engaging by means of-a pin 15 in a slot 16 of one of two draw bars 17. The draw bars 17 are guided, on the one hand, on stationary pins 18 by means of longitudinal slots 19, on the other hand, in longitudinal slots 21 of the side walls of the machine by means of the ends of a restoring bar 20 connecting them. The restoring bar 20 cooperates, by means of vertical arms 22 of the differential members 5, which arms 22 being provided at their upper ends with lugs 23 cooperating with the set pins 2.

On rotation of the main drivingshaft 1.3 in the direction of the arrow the draw-bars 17 will be drawn to the right, wherewith the differential members 5,-under the action of their springs, follow the restoring bar 20 until they strike with their lugs 23, against the adjusted set pins. According to the movement of the differential members 5, the typebars 7 will be lifted through the intermediate wheels 6 up to that point that their types, corresponding to the depressed setpins, are in the printing line. The type bars 7 are guided on stationary bars 25, 26 and each contains ten spring actuated single types 24 with the digits 0 to 9.

On a stationary shaft 27 hammers 30 are rockably mounted, being clockwise urged by springs 31. on the ends of the main drive shaft 13 cam discs 32 are rigidly secured, cooperatingwith r0llers 33 of bellcrank levers 34, on the upwards directed arms of which a hammer tensioningrail 35 is fixedf The later will be rocked, .by means of the cam discs 3 2, about the shaft 27 in such a way that the hammers 30, taken along .byfthe rail 35 by means of lugs 36, are putwith their noses 38 at their front'ends before a releasingledg'e 37 0f the releasing device. v 7

The hammer releasing ledge-37together with two'ar-ms 3? and a stationarily mounted shaft 40 forms a frame rockable about the shaft 40. The arms 39 are provided with downwards directed projections 41, which, after a' rotation of about 180 of the main drive shaft, will be struck by pins 42 of-cam discs 32, whereby. the levers 39 together with their releasing ledge 37 being rocked clockwise, therewith releasing the hammers 30 for printing. At this point of time the hammer tensioning rail 35 assumes the position 35', so that the impact noses 33 at the back ends of the'released hammers 30 strike against the adjusted types 24, the corresponding digit being printed on the paper.

In order to avoid printing of zeros in the orders to the left of the highest denomination in which a digit l-to 9 is adjusted, locking slides 44 are shift-ably mounted on two stationary bars 45 and 46, which cooperate with cam discs 48 by means of lugs at their lower ends. Said cam discs 48 being rigidly connected with said intermediatev wheels 6'. Each of the cam discs'48 is'provided with a recess 48', located, in the zero position of the corresponding type bar 7, opposite the lug 47 of its locking' slide 44.

The locking slides 44 are connected with each other by obliquely bent over ears 49 formingtogether a bridge,

as is'known in the art of zero printing mechanism for' right of the highest denomination adjusted to a; digit value,

will be printed, but not the zeros lying to the left of the mentioneddenomination. The locking slides. 44- are pro-. vided with bent over ears 50, which-in the lowermost position of the slides move before noses 51 of the hammers'30, preventing their impact. movement. Therefore.

printingonly can be brought about in. those denomina tions. in which the locking. slides 44 are lifted by adjustment' of a-digit or by means of the mentioned bridge.

Adjacentto each hammera sign type carrier 52 is ar-..

ranged carrying a decimal point type 53 at its end facing the platen and therebelow a comma type 54. These signtype carriers are, on the one hand, guided on the bar 26, on the other hand, by means of pins 55 in slots 56 of dec mal sign setting levers 57. At the front (left) endof'each sign type carrier a pin 58 is fixed, which is placed before a lug "face 59 of the coordinated hammer 30. Thesign type carriers are. drawn backwards (i.e. to the right in FIG. 1) by. springs 60 and being retained by means of their pins 58 by the hammers. 30, so that commas'or points'ca'n-be printedonly where the lug face 59, on the impact movement'of the hammers 30, frees the pin '58, the springs thereby effecting the printing move ment of'the'sign-type carriers 52.

The decimal point settinglevers 57 are mounted on a shaft 61 and are urged clockwise by springs 62-. They are provided with sensing noses'63, which cooperate with the'cylin'dric'al control member 64. The controlling. organ is provided at its peripheral surface with controlling elements in the'form'o'f projections 65, 66 sensed by. said sensing noses 63. The projections'65 are twice as high as theproje'ctions66. The sensing'noses 63 being permit nently urged against the projections 65,66 and the pro ectionless parts of control cylinder 64. Upon rotating the controlcylinde'r 64' the 'rear ends of the sign't pecarriers 52'will be adjusted into three difierent positions ofheight;

When the nose 63 is placed on a high projection 65 (Flo. 1)the curved 810 56 of the related decimal sign setting" lever 57 being'lifted as far that on the impact movement of the hammer'30 the decimal point type of the coord nated sign type carrier 52 willbe printed. Therew1th, at the same time, bent over ears 68 of'the slides 4'4 wrll-be'seiz'ed through arms 67 of the decimal point setting le'ver arms 57'and the slides'44 will be lifted so that} their bent over ears'50 lieout ofthe range of the noses 51 of the hammers 30, provided that the slides 44 have not beenalready lifted by their cam-discs 48 or the above-mentioned bridge. Thus, it is attained, that with a decimal fraction having no significant digit to the left of thedecimal point thezero to the left of the decimal pint and the zeros between the decimal pointand the highest denomination, in which-a digit has been entered, will be printed. V When the decimal point setting lever 57 by "means of its nose 63 is placed on ahalf high projection 66 of the cylinder 64 (FIG. 2). the curved slot 56 will be moved downwards as far that the 'comma-type'54 is adjusted to the printing line, so that on the impact movement of;

the hammer 39 a comma will be printed. Thereby the 56 will bestill further lowered so that, if the slide has.

not been lifted otherwise, the hammer 3t), owing to the locking 5%, 51, is prevented from performing its impact movement and consequently also the sign type carrier 52 will not be moved and a comma or point will not be printed.

The'proiections 65, 66 are distributed on the circumference of the cylinder according to the unrolling of FIG. 4, in such a manner, that in the radial plane in each order of the controlling organ only one or none high projection'65 and in distances of each three orders to the right and to the left from the projection 65, each a half high projection 66 for printing points is to be found. Thus, each printed number will be provided with its decimal point and to the right and to the left from it will be divided by commas into groups of three orders, see FIG. 5, in which to the left of the eighth denomination a decimal point and to the left of the fifth and second denomination each a comma is inserted.

The control member cylinder 64 consists of single discs (FIG. 5) which are filed on a square shaft 69 (FIG. 1) in denominational distances. On the right end of the shaft 69 a setting knob 69' is fixed, by means of which the control member 64 can be turned into any rotary position. To each rotary position, corresponding each to a horizontal row of projections in FIG. 4, a definite decimal point position is coordinated to. With the arrangement according to FIG. 4 the projections 65, 66, taking no account of the two uppermost series, are arranged along helical lines so that the decimal point, on turning the setting knob 69, will .be shifted to the rightor to the left from denomination to denomination. The cylinder 64 is held in the different angle positions by an elastic locking means such as is customarily used With the platen of type writers and adding machines shown FKEIRE 8 and described hereinafter page 16, lines The embodiment of the mechanism according to FIGS. 6 and 7 is destined for an invoicing machine with which most only two or at the highest three different decimal point order positions occur, for instance, such for the number of pieces (without decimal point) the price of one piece and the product from the number of pieces and the price of one piece. Said price of one' piece and the prodnot both having the decimal point on the left of the second order from the right.-

Assuming, the print of the decimal point is to be effected for the following simple sequence of cycles of operations consisting of (a) the number of pieces, (b) the price for one piece, (0) the product,

the first amount having no decimal point and the second and third amount having the decimal points on the left of the second digit from the right.

On the shaft 69 (FIG. 6) of the control member a disc 70 is fixed, which is provided with two open slots 71-, 72. One of these slots lies, after the shaft 69'hasbeen correspondingly rotated by means of the knob 69', oppositea pin 73 of a link 74 linked by means of a pin 75 to. a setting lever 77. At the other end of the link 74 a rod 79 is linked by means of a pin 78. The rod 79 is connected by means of a pin 89 with a reversing lever 81, which is rockably mounted on a stationary pin "82. The reversing lever- 81.is provided'with a double notch 83,.cqoperating with a pin 84 of a notch lever 86 rockably 6. mounted on, a stationary pin and being pressed into one' of the two notches by means" of aspring 87.

At the lower end of the reversing lever 81 (FIG. 6) by means'of a pin 88 a pawl 89 is linked which is urged downwards'by a spring 90 and resting on a pin 91 of a function key 92. This,key'92"will be depressed for initi-' ating the'last cycle of operations of each sequence of amounts and for restoring the control cylinder to its home position. This key 92 must be a releasing key for the last cycle and maybe, for instance, a total key, or a' product ke when during the last cycle of the sequence their left end with actuating noses 97, 98 cooperating with a pin 99 fixed at the end of the restoring bar 20.,

When the setting lever 77, on adjustment of the slot 72 or 71 opposite the pin 73, is rocked counter-clockwise about its pin 76, the pin 73 engages into the respective slot 71 or 72, eachof which being coordinated to a definite sequence of decimal point positions.

When the reversing lever 81 withs its pawls 89 and 94' assumes the positioirshown in FIG. 6, on the movement of the restoring bar 20't0 the right, the pawl94 will be" rocked downwards against the action of its spring 95and" arrives, after the pin 99 has passed the. nose 98 again. back at the represented position. On the movement of. the restoring bar 20 to the right the type bars 7 will be" adjusted to the amount keyed by the keys 1. After the restoring bar has attained its right end-position, the amount will be printed together with the decimal signs. corresponding to the rotary position of the control cylinder 64; On the return movement of therestoringbar 20 to the left during the second half of the first cycle of operation the. pin 99 seizes the actuating nose 98 and" takes along the pawl 94 to the left, whereby the reversing lever 81 will be reversed into the position shown in FIG. 7. Therewith, at the same time, over the rod 79 and the link 74 through the pin 73, the cylinder 64 will be turned clockwise by one step into the neighbouring angle-posh tion, in which printing of the decimal point in a second order position for the next cycle is prepared.

Before the beginning of the second cycle. of operations, by'means of keys 1, the second amount will be keyed and during the movement of the restoring bar to the right, in the first half of the cycle, the amount will be transmitted ina mannergenerally known' in the art'to the totalizer or to another receiving mechanism, not shown in the drawing, and to the type bars.

During thestandstill of the restoringbar. in the right end position. thereof, this amount, together with the decimal sign's prepared during the first cycle, will be printed. As no changing of the position of the reversing lever 81, the link 74 and the control cylinder 64 has happened, in conjunction therewith further cycles of operations can be performed, for instance, for addingfurther' amounts having the same decimal sign positions.

When the last cycle of operations of the sequence is to be performed, the function key 92 is to be depressed, whereby the last cycle of operations .of the sequence will be initiated and the' control cylinder restored 'to its home position. -Whenthis last cycle of operation shall-have a distinct function character, "for instance, to print. the total of added amounts orthe' product of a multiplication or toterminate the sequence by'any' other function of the machine, the function'key92 also initiates, in a manner generally known inthe art,'the desired function of the machine, the character of which is without any signification for the claimed invention and need no further description in detail. H M V See for instance U.S specification No. 2,833,467 which shows motor keys for initiating a cycle of operations for instaneeI-printingthe-total of addedamounts, the prod-.

uct of a multiplication or-the like,'a totalizer and the other' devices necessary therefor.

I On adding. calculations, for this purpose, the total'contained in the totalizer will be'transinitted by means. of the differential meinbers'S tothe type bars 7.

On. a multiplication, the product formed by means of particular-mechanisms by. the two factors introduced dur-.

ing' the two? preceded: cycles, will be transmitted to the totalizer from which itwill be likewise transmitted to the type bars 7.

At the beginning. of of the sequence the printof: the total orthe product or another peculiaramount, respectively, will be effected having. thedecimal-signs between the same orders as in the secondcycle because the positions of the parts 81, 74, 64 have not been changed" during the first half of the third cycle of operations."

When, now, the said'funct'ion. key 92will be depressed,

by the pin 9610f whichthe pawl 95-willbe moved downwardsinto the-position 94, shown in; FIG. 7 in'dotted lines, whereby the actuatingnose' 98 will be held outof the path of"th'e pin"99. At the sametimethe pin 91 of the function key 92 permitssafdownwardmovement of the pawl 89, so. that the actu'atin-gnose-v 97 thereofz'arrives atthe position 97". On movement of therestoring bar to:' the right, duringfithe first part of the operation of themachine, the nose 97 will be-pressed upwards, butfalls then back into the; position--97", so that on the fol-. lowing. movement to" the left "of;- the restoring bar. 20, at the termination 'of this last cycle of operation of the machine, pin 99 seizesv the. actuating. nose 97' and restores the reversinglever 81 into the position shown in, FIG. 6. Herewith,-also 'the'control member cylinder'64 will be turned back by- 'one pitch into its horne'position representedin- FIG. 6. Assuming that the sequence concerns the multiplication 814:times 24.81=20,125,34' that the rotary. position: of the cylinder64, the-slot'71 of which being. in the'home position shown in FIG. 6, corresponds toi-tlie. projection row 100m. FIG. 4, it will be evident thatthis position'inthe first cycle-of the sequence, a decimal pointwill'not be printed but only a cdmm'aless' amount, for instance anv amount of quantity. Assumingfurther that, for the next'op'eration of the machine the projection row-102.- (FIG: 4)-' is"setopposite the sensing noses 63 '(FIG; 1:)Jaecordin'gto the-reversion conformable to'FIG. 7," wherev the. high projection 65 'is located'be tween'the second and the third: denomination, here the decimal point will-beprinted according to the price for one piece $24.81 of 'theinvoice-suitable for-the dollar and cent value." a

When, now, for introducing; thev operationiofthe ma chine for the pi-int 'of-the' product? of: the quantity ''value and; theprice thesaid function key 92isdepressed; the

pawls. 89," 94arrive.- at" thei'positidndraWn in1 dotted IinesinvFICh' 7': In'these positions th ere will be, in: the first instance, no change concerning the angle position Of-thfizCOntfOl member 64; sotthat here likewise the projection? row 103;is:'efiective and printings of: the product with a decimal point between the'second and third denomination fromthe right accordingto the dollarand-cent value of theproduct 20, 12-51342 takes place.

Atthe. termination of this operation of the machine, now, upon the movement of the restoring bar-'20 to the leftthe pin 99 -takes along the. reversing'lever 81 by means of the pawl 89 to the left, so that reversing-lever 81 and control member 64will'be restored into their home position: projection row 103 represented in FIGS. 4: and 6', in which: duringtheneXt operation-of the machine the printof'th'e decimalpoint' will becarried out-again between. the thirdand fourth order of' the amount according tothe assumed valu'edesignation kilograr'nme or tons of the quantity value, i.e. the decimal-point controlling and printing mechanism is in readi'ness for anew and equaPsequence of amounts;- In the simplified i ch1 the second half of this last cycle 8 bodiment according to FIGURES 6 and7 it is tobe provided'that in the lastand the next to last amount of the sequence the decimal point has the same position. Thiscase occurs very often with-invoicing machine work.

After disengaging the setting lever 77, in order to perform a new sequence of. amounts having other decimal point ordinal positions, the control member 64 is adjusted, by means of the setting knob 69 (FIG. 5), thus that the slot- 72 (FIG. 6) is placed opposite the pin 73, andassuming that in this rotary position of the controlling organ the sensing noses 63 (FIG. 1) being opposite the projection row designated with 101 (FIG. 4), during the first operation of the machine of this sequence of amounts, a decimal point will be printed between the secondand thirdorder from the right. For the second and third operation of themachine of this sequence of amounts the controlling organ will *be turned by one step, whereupon thesensing noses63 are placed opposite the projection row 103 (FIG. 4). In this projection row the projection 65 islocated between the third'and the fourth order from the right. This sequence ofamounts corresponds to an addition of. two amounts, for instance 6.23 plus 28.136=34.366.

It will be evident without adothat on arrangement of further slots additional to the slots 71, 72 and by coordination of projection rows having other decimal point ordinal positions any: sequence of two different decimal point positions may be attained, for instance, by means of an exchange of the single cam discs 64' (FIG. 3).

Besides this, two or more diifere'nt comma positions may be used when on disengaging the setting lever 77 the control member-64 is adjusted by hand into the concerned angle positions.

Inorder to attain any number of any different denominational positions' of the decimal point within a distinct sequence of amounts without fulfilment of the above'mentioned supposition made for the embodiment according to FIGS.-6 and 7, in the embodiment according to FIG. 8 an actuating disc 104 is secured to the control member 64 instead of the disc 70, which actuating disc is provided with a ratched gearing 105 cooperating with an actuating pawl 106. The latter ismounted by means of a-pin 106 on-a leverarrn'107v rockable about the'shaft 69 of the control member and linked to the cam disc 32 of the main drive shaft 13 by' means of a link-108 and'a crank bolt 1091f The actuating'pawl 106 lies, under the action of a spring 110, on a pin 111 of a double armedlever 113 mounted on-a stationary pin 112. Lever 113-is pivotally connested withthe lowerend of the above'mentioned function key"92;- The function-key cooperates, by means of a,;pin:-114;:-with a'bellcrank lever 1 16 mounted on a'sta tionary pin 115, which bellcrank lever 5 is "urged by a spring, 117 andcooperates by means'of a roller 118-with a: notch gearing 119 likewise -rigidly connected with the control member 64.

The actuating disc 104 fixed to the control membef 64 leans, before the beginning of a sequence ofcycles, with an arm 121 under the ac'tionof aspring 120, against a stationary lug 122 so that the actuating disc and the control member and the notch gearing. 119 customarily are'held' in-the home position represented in FIG. 8.

On the 'rotation of the'main drive shaft 13 thelever 107 performs, consequently to the crank action of the bolt 109, a rocking movement,whereby the actuating pawl 106, on each cycle of -ope-rations of the machine turns clockwise the actuating disc 104'togetherwith the controlling organ 64-by one angular step, the actuating pawl'engaging successively behind the teeth of "the'actuating disc. Theactuating disc; andthe control member will be held elastically, betweengthe single angle steps, in its angle position by means-of the notch locking 118, 119. I Whe'n after performing of rotation of the control memher by adefinite number 'ofstepslthe key'92' is' depressed,v the actuat'ing'pawl 106'will'be lifted out'of the actuating gearing 105 through the lever 113. At the same time, however, also the notch lever 116 with its roller 118 will be lifted out of the notch gearing 119 by the pin 114, so that the actuating disc 104 together with the control member 64 can, by the action of the spring 120, again return into its home position, i.e. in contact with the abutment 122.

It will be evident that with a corresponding number of teeth of the actuation gearing 105, coordinated each to a horizontal projection row (FIG. 4) any number of decimal point positions may be successively made effective, wherewith, according to the arrangement of the projections 65, 66 in the corresponding projection rows of the controlling org-an the decimal point can be printed in any ordinal position and that, after performing of the related sequence of amounts, the control member returns into its home position, being in preparedness for the performing of a corresponding new sequence of amounts.

In order to be enabled to terminate the sequence of amounts also without depressing of a special function key, the lever 113 may be provided with an arm 123, to which a shiftablyguided bar 124 is attached, the right end of which lies in the path of the arm 121. As soon as the arm 121, on the last operation of the machine of the sequence of amounts, strikes the end of the bar 124, the bar will be moved to the left, so that the key 92 will be drawn downwards, whereby the actuating pawl 106 and the notch lever 116 will be lifted out. The control member 64 will return automatically into its home position under the action of the spring 126 in the same manner as upon depressing the key '92.

What I claim is:

1. In a calculating machine for subsequently effecting calculations, each calculation involving a definite se quence of amounts of varying decimal powers, each amount having a definite ordinal decimal point position and definite comma positions, aprinting mechanism having denominationally arranged digit printing members, decimal sign printing members each being arranged between two neighbouring digit printing members, a control member rotatably mounted in the machine, rows of control elements thereon, means for automatically and stepwise turning the control member before the printing of an amount into different control positions each being associated to one of said rows of control elements and to a definite ordinal position of the decimal signs, the ordinal positions associated with the adjusted control posi tions corresponding to the sequence of amounts having varying decimal powers, operative connections between said control member and said decimal sign printing device adapted for rendering effective the associated decimal sign printing members on each printing of an amount, and means for restoring said control member into its home position subsequently to the printing of the last amount of the said sequence of amounts.

2. In a mechanism according to claim 1, and a function key for initiating printing of the last amount of a sequence of amounts having varying decimal powers, and operative connections between it and said restoring means adapted to set in action said restoring means on depressing said function key.

3. In a mechanism according to claim 1, said control member comprising besides said one set of rows of control elements, further sets of rows of control elements, each associated to another sequence of amounts with other varying decimal powers, and means for selectively setting in action any one of all sets of control elements.

4. In a mechanism according to claim 1, for sequences of amounts having but two different ordinal positions of the decimal point, an oscillating drive member, two actuating pawls cooperating therewith in opposite directions and being displaceable from above or below, respectively, into the path of said oscillating drive member, a reversing lever pivotally mounting said actuating pawls at opposite ends, an actuating pin operatively connected with said reversing lever, said control member having an open slot cooperating with said actuating pin, a function key having projections cooperating with said actuating pawls for alternatly holding them in the path of movement of said oscillating drive member, whereby the control member will be moved by one step in the one or the other direction.

5. In a mechanism according to claim 1, for two or more sequences of amounts having but two different ordinal positions of the decimal point in each sequence of amounts, an actuating pin, spaced open slots in said control member, each associated to one sequence of amounts and cooperating with said actuating pin, means for turning said control member with each of its slots opposite said actuating pin, said slots and said rows of control elements are placed with respect to each other in such a manner that the row of control elements for the first amount of the sequence of amounts associated to the ad justed slot assumes its active control position, means for moving said actuating pin into said open slot and means for moving the actuating pin and therewith the control member transversely to said slot by one step in the one or the other direction.

6. In a mechanism according to claim 1, said control member having the form of a cylinder, said control elements thereon having the form of projections arranged in rows angularly spaced on the circumference of said control cylinder, said means for stepwise moving said control cylinder comprising an actuating disc fixed to said control cylinder, an actuating pawl turning said con trol cylinder by one angular distance on printing another amount for bringing another row of project-ions into a working position for said decimal sign printing device.

7. In a mechanism according to claim 1, and a hand setting means for adjusting said control member into any of its control positions, adapted for selection of the control position from which the stepwise movement of the controlling organ is to be started for each sequence of amounts.

8. In a mechanism according to claim 1, for sequences of amounts having but two different ordinal positions of the decimal point oscillating drive member, two actuating pawls cooperating therewith and working in opposite directions, a function setting means cooperating with said actuating pawls for alternately bringing them into engagement with said drive member.

9. In a mechanism according to claim 1 for sequences of amounts having but two different ordinal positions of the decimal point, said control member having the form of a control shaft and cam discs filed thereon each having one high and several half high projections as control elements in equally angularly spaced relation, said decimal sign printing means carrying each a decimal type, a point type and a signless part and cooperating with said control elements, means for bringing the decimal point, the comma or the signless part opposite the print ing line, an actuating disc fixed to said control shaft having two or more open slots spaced apart, each determining the starting position for the turning of said control shaft for one of the sequences of amounts, an actuating pin, means for selectively engaging it into one of said slots, means for driving said actuating pin in reversed directions, a hand setting means for adjusting said control shaft for effecting engagement of one of said slots with said actuating pin, a rocking restoring bar, two actuating pawls cooperating therewith, a function key adapted for effecting alternately operative connection of one of said pawls with said restoring bar for turning said control shaft by one step in the one or the other direction, whereby said control shaft being turned with each sequence by one step on printing of the first amount of the related sequence, whilst it is retained in its attained turning position during the second amount printing of that sequence, and is restored into its departure position during the third amount printing of the sequence.

10. In a mechanism according'tocl'aim 1, said control member having the form of a rotatably mountedcylinder,

a ratchet gearing disc fixed to said control cylinder, a:

spring actuated pawl cooperating with said ratchet gearing, a rockably mounted carrier pivotally'mounting said actuating pawl, driving means-for rocking said carrier'- said elastically locking means for releasing said control; cylinder to restore it into its-home position -undertheaction of saidspring.

11. In a mechanism according to claim '1, said control member having the form of a:rotatab1y mounted cylinder,

a ratchet gearing disc fixed to saidcontrol cylinder, 3';

spring actuated pawl cooperating with said-ratchet gearing, driving means for rocking said pawl, said restoring means comprising a springtending to movesaid control cylinder into its home position, means for elastically locking said control cylinder in itsactuated position,'-an1 arm on said ratchet gearing disc, anabutment member cooperating-therewith shiftably'mount'ed operative connections between said abutment member andnsaid pawli 25 2,917,232 and said elastically locking means, whereby during-the:

printing -of the-last amount-ofthe sequence of amountsthe said pawl'and said locking means being released by striking-of said arm' against the abutment member auto.- matically effecting returning of the control cylinder into its home position.

12; In a mechanism' according to claim 1, and a platen,

said decimal point printing means comprising shiftablei and rockable decimal sign levers,-carrying comma and point types lying-oneabove the other at their ends facing said platen, said control elements-having the form of projections with twoditferentheights, said operative connections between said control member and said comma printing-means comprising decimal point setting levers adapted to sense, by means of their one end, said projections and being connected with their other ends with said decimal sign levers. adapted to vertically displace themfor'bringing said comma type or said point or a typelesspart of the sign levers into the printing line depending upon the height of the sensed cams or the pres- 20 ence of a projectionless portion tobe sensed.

References Cited in the -file'of this patent I UNITED STATES PATENTS 2,768,786

Claims (1)

1. IN A CALCULATING MACHINE FOR SUBSEQUENTLY EFFECTING CALCULATIONS, EACH CALCULATION INVOLVING A DEFINITE SEQUENCE OF AMOUNTS OF VARYING DECIMAL POWERS, EACH AMOUNT HAVING A DEFINITE ORDINAL DECIMAL POINT POSITION AND DEFINITE COMMA POSITIONS, A PRINTING MECHANISM HAVING DENOMINATIONALLY ARRANGED DIGIT PRINTING MEMBERS, DECIMAL SIGN PRINTING MEMBERS EACH BEING ARRANGED BETWEEN TWO NEIGHBOURING DIGIT PRINTING MEMBERS, A CONTROL MEMBER ROTATABLY MOUNTED IN THE MACHINE, ROWS OF CONTROL ELEMENTS THEREON, MEANS FOR AUTOMATICALLY AND STEPWISE TURNING THE CONTROL MEMBER BEFORE THE PRINTING OF AN AMOUNT INTO DIFFERENT CONTROL POSITIONS EACH BEING ASSOCIATED TO ONE OF SAID ROWS OF CONTROL ELEMENTS AND TO A DEFINITE ORDINAL POSITION OF THE DECIMAL SIGNS, THE ORDINAL POSITIONS ASSOCIATED WITH THE ADJUSTED CONTROL POSITIONS CORRESPONDING TO THE SEQUENCE OF AMOUNTS HAVING VARYING DECIMAL POWERS, OPERATIVE CONNECTIONS BETWEEN SAID CONTROL MEMBER AND SAID DECIMAL SIGN PRINTING DEVICE ADAPTED FOR RENDERING EFFECTIVE THE ASSOCIATED DECIMAL SIGN PRINTING MEMBERS ON EACH PRINTING OF AN AMOUNT, AND MEANS FOR RESTORING SAID CONTROL MEMBER INTO ITS HOME POSITION SUBSEQUENTLY TO THE PRINTING OF THE LAST AMOUNT OF THE SAID SEQUENCE OF AMOUNTS.

Images