US1034756A - Thomas calculating-machine with device for moving the keys. - Google Patents

Description

` l B. G. M. BEER.

THOMAS GALGULATING MACHINE WITH DEVISE P OB, MOYINGTHBKEYS.

APPLIOATION FILED AFB. 30,1910. Patented Aug. 6,1912.

B. c. M, BBHR. THOMAS CALGULATING MACHINE WITH DEVICE FOB. MQVING THB KEYS.

APPLICATION FILED APB. 30,1910.

1,034,756. l Patented Aug. 6,1912.

3 SHBETS-SHBET 2.

B. C. M. BEER. THOMAS GALGULATING MACHINE WITH DEVICE'IOR MOVING THE KEYS.

APPLICATION FILED APB.. 30,1910.

3 SHEETBSHBET l3.

v Be it known that I, BERNHARD UNITED Y sTTEs PATENT ernten.

BERNHARD ll. BEHB, DRESDEN, GERMANY, ASSIG'NOR T0 AKTIENGESELL- SCHAFT'VBIE. SEIDEL z-NAMANN, OF DRESDEN, GERMANY.

` THOMAS CALCULATING-HAOHINE;WITH DEVICE FOR MOVING" THE KEYS.

Losanna'.

To all whom z't may concern.'

` CARL M. Balm, a subject of the German Emperor, and resident of Dresden, Germany, `have in- Vented certain new and useful Improvements in Thomas Calculating-Machines with Devices for Moving the Keys, of which the fol-lowing is a specification.

' yThis invention `relates to a Thomas calculating machine having a keyboard and a printing mechanism, the calculating mechanism beingactuated by a crank andthe printing mechanism being actuated by means of amspecial printin lever, saidlast-named mechanism serving or printing the amounts to which lthe machine hasbeen adjusted. In

` this palculatingfmachine the printing lever 1s actuated with the Vcalculating mechanism and this connection. 1s releasable as well as the connection of the printing mechanism withth printing lever. Furthermore, a coupling 'deviceis inserted in the connection between the crank and the calculating mechanism, said couplin A device preventing the crank from being in uenced or controlled by the printing levery when the calculating mechanism is operated,'so that after releasing the connection between the printing lever and calculating mechanism, the calculating mechanism may be-actuated by the crank, independently of the printing i'nechanism-.and the printing mechanism may be actuated by` the print-ing lever, independently of the calculating mechanism.. Therefore, the calculating and printing mechanisms maybe actuated" together, by means ofpthe printing lever, or after the connectio'nbetween print-ing lever and printing mechanisnris interrupted, .the calculating mechanism alone may be actuated.

'.The'printing mechanism comprises a plurality of sectors, which are provided with printing type, said sectorsr being connected by means of levers and links with the lower ends of the bell crank lever arms which are actuated by depression of the keys.. The zero types are disposed on separate sectors, so that they are lifted od from the type carriers when the typve carriers are in inoperative positions. for the zero ty es are adjusted, the type are positioned in t e writing line. This is efy Speccation of Ietters Patent. l Application led Apri! 30, 1910. Serial No. 558,715.

v inoperative.

Vhen these segments Patented Aug. e, 12512.'

fected by means of coupling claws which are attached to the various sectors, said claws being tilted by means of the lever segments so that the zero sectors lose their hold. The arrangement of coupling claws in connection with the single type carriers or sectors, has the advantage that the force required for depression of the keys is uniform, no matter whether yzeros or other type characters are positioned. The immovability of the zero type sectors permits of printing a zero at the right hand side of a cipher which is to be printed without requiring special adjustment oi the zero. The zeros at the left hand side of a cipher are left It for instance in the one thousand digits voi a machine having 9 digit rows a i is to be printed, the printed result must show 1000 or should not show 000001 and 000.

The restoration of figures required in the machine is effect-ed by means of a releasing device which frees the locking bars holding the keys in depressed positions. The release is effected by means or' a shaft disposed trdnsvei'sely in the rear of the keys, said shaft beihg provided with cams which .hiit the locking bar backwardly when the aft is rotated. The rotation of the shaft is efected by means of the printing lever inthe period preceding the final depression of the same, a lug being provided near theiree end thereof and which engages a set-oil portion of the shaft. A repeating device comprising a slide is"pro,vided\in the machine and by means of Whichythe set-off portion of the shaft may belifted manually sc that it is beyond the path in which the lng of the printing lever moves, so that said lug cannot engage the shaft. The releaseof the shaft may also be eliected by means of the slide when the machine is operated by the crank to multiply or subtract. As the disconnection of said shaft is possible even after the operation of the vlever and the print-ing operation has taken place, errors can be corrected at the last moment of the operation. tion of single tigures as Well as of the entire figure when the. repeating slide is pulled out by hand. By this meansmaterial advantages over knownl constructions are obto'zero position`whenthe re eating slide'is pulled out. This is frequent y necessary'foi" l example when the amountsof Weights are to be added which differ only slightly from cach other and wherein only the last digits or fractions thereoE vary. The possibility of actuating the repeating slide after the printing; has taken place andpwhen the lever of addition has been lifted, afo'rds theL ad-j vantage ot immediate correction of `an error Without requiring a new adjustment of the slide. nithese cases the repeating slide ,isy

'pulled ont and the adding lever is; lowered, kthe machine isl s 'operation printed vin red and Ithe lever is operated again so that the error is corrected almost automatically. lf the, error would have te he printedv lirst and then be, corl`reci-ed hy resetting of the keys, time would.

loet 'together with liability of other mi,

cross section`-tliroiigh vthe Qfis a section through the Figs. il and 4e are elevationsv of mechanism and of the type seg nrs, respect rely, invarious operative potl and i are details of the anisni; Figs. 8 and 9 are front evations respectively of a device .edjrsted type segments; Figs. shov the device for restoring y restoration being acroniineens o' printing lever; Figs.

areside. elevations ci a certain -e machine showing the same` in positions; to 19 are other isere mounted in a Set ing; gears .fl

d on their shaft 3 well` known Way, by depressing the n' controlled lcys and `are thereby n into engagement with the respecti i? .'i 6, disposed adjacent each banket aid plate lacing under thecontrol'ot and haring; pins 'i' for holdintgfthc said pins projecting' over the,

le 'depressed he" A i lever l() l1 is located adjap @ont eacn bank o keys, the pivotal shaft of l ll crank lever being indicated :it il, cheri to nach key lever 5, acting ,le hmlsontal arm 1D nl Said bell Granit i .of gears are disp' tched over to subtracting e` l and arey t the switch or scp drums 2. A-sli'de'i lever, so that the gear segment 10, attached to the free end o-said lever, and the end of the arm 11l of the same, are oscillated in accordance With the numerical value of the depressed key.y Eornthis'lpurpose the upper operating/surface' ofthe lever farm lOis in` :clined in opposite directions for the purpose or" bringing the' vamplitudeffof ythrowy olii 'the lever' 10-'-'11" exactly'. intoi, accordance with said numerical Values, even if the keys are depressed"simultaneously.' The front end of the arm 10 engages the checking gear 13 indirectly, the segment being directly in mesh with a gear 14, mounted on the shaft of the gear 13. The gear'14: is under Control of a spiral spring 12, (,Fig. y2,),Which returns the gear 13 to zerqposition and also yreturns therefore the'vlever 1,0-"11 to', an elevated position.. y l y',

The rear arm 11, of the bellfcrank lever, fis connected'by meansy ota. System ot levers 15, With `the printingT mechanism, comprising rotary type segments y16;,'so that in accord- .ance with vthe nnnlierical'vailue'oi the key depressed, the respective "type seginents'ot the printing mechanism 'ano' lhe type, are 'adjusted to /operatii'e position'. On the'righthand side of the machine, '(Figs.A 13 and. 14) a printing lerer 18 is rotatablyv mounted on the shaft l?, said lever serving lo actuaie the printing mechanism for solving` p'robleiis''ot" addition andsubtraction. On'the'printing lever, a double arm pawl 20 is p'ivotally mountedhyY means 'ot' the pin 19, said paiiil being"nnder'the intlucnce'of a' spring'Ql supiliorted hy 4the lever 15?. A ratchet tooth' S20 connected With the double pawl'i() pre vents the return movement of the printing lever 1S 'e'lore the stroke ofthe-same `is completed. said tooth engaging a o t'th'e stationary' gear Below the ratchet gear y Q2, a bell shaped inember 23 is disposed the end of which acts upon the pawl Q0 at each stroke of the printii'iglei'ei. 'The ymounting of said lever-linear ythe pivot y17 carriesvan' extension 26 yharing the lues '24 and 25 (Figs, 13, 1S and 19), tThe rtatorv shaft of the,sii'itching'drurn 2 ris provided with abevel f icliir' -enefaggjng a second he'el gear 2S carried jon the shaft 2T. 1). Another gear), niountedon the last namedfv shaft 2j'` andlshoivn Yin 15` in engagement with a gear 31 which is rotated'bv means 'of' a printing lever. the cani Whcclli? being rigidly yconnected"with the 'gear 31 'and being advanced step `by step by means 'ot' pawl carried by a har rrhich is mount44 on the arm 4The operation ot the cam ii'ncel 3Q takes place with each stroke of the printing leverv (Figs. 13, 14 and 18).

Gear 31 is four times as large aseear 29 ot' the drive shaft 2% so thatkleach lpartial t rotation ofthe switching disk coincides with. l a coinplete'rotation of thel drive shait?.

- It is advantageous to make theponnection lever and calculating mechanism re between the .crank 35 of the calculating mechanismilfdeasable as soon as the printinglver 18 is'operated exclusively, for` the 'purppse of preventin simultaneous rotation' oft e c rank, and 'a so for the purpose-of making .the 'connection between printing easable, sol that in' multiplying and dividin the crank 35 may bev used exclusively, which is better. adapted for these calculating opera-- tions. The printing lever valso is releasably connected with theprinting mechanism lt vfor .the purpose of being able to add or 'Subtract by means o said lever` without .printing at the sometime.

.The transmitting' shaft 36 communicates the movement of the crank 35 to the driving shaft 27y ofthe switchdruin 2, by means of couples of bevel gears 60-61 and 'islooscly carried thereon, said last named bevelgear being coupled with the shaft 36,.

when the crank is onnected by said shaft,

g a sleeve 63 of gear 6 being provided with a. cam disk 64 and being rotated by means of apart-1.39 which is disposed on a disk 37 of' shaft 36,. and whichy engages said cam stationary.

The connecting rod 34 is connected With one end of an arm 40 (Figs. 13, Mend 18), Which is rotatable aboutshaft 30 of cam 'Wheei The otherend of the connecting rod 34 is provided with an arcuated slot 41 into which a pin 42 on arm 26 projects. The right hand end of the slot is enlarged in an Vupward direction, as shown at 4:4, in Fig. 18.` A spring 43 (Fig-s; 13 and 14) nor` mally presses the connecting rod 34 downwardly. The lower edge oi." the rod 34 is provided with a. cani-like projection 45 against which a pin fl-6 oi" the arm 26 projects when the printing lever 18 is lifted. The pin42 rests inthe enlargement 44, of slot 4:1, as long as the printing lever is in an inoperative position and the pawl 33 projects into one of the recesses of the cam Wheel 32, as shown in Fig. r13. When the printing lever is lifted to swing from the position shown kin Fig. 13, to the position shown in Fig. 14, the coiniccting rod 3d is pulled to the left as long as pin 4t2 remains in the enlargement 44 of slot 4l, andthe cam Wheel 32 is therefore rotated by coaction of the pawl 33 until one quarter rota- -e von 'the shaft 36 while the bevel gear 61v tion has been made, the drive shaft 27 making at the same time one complete revolution. During this movement of the printing iever 18, pin 46 of the arm 26 engages the cam-like projection 45 of the connecting rod 34 and raises ksaid rod, thereby freeing the pin 42 from the enlargement 44: inslot 41. (Fig. 18). ljiring the continued movement of the printing lever, pin 42 slides in the slot el without moving the rod 34. The lug 24, fastened to the pivotal head of the printin lever 18, enters a recess i7 oi? a bar 48, disp aces said bar to the left and places the printing hammer 50 under tension by means of suitable transmitting elements 49, counteracting the tension ot the springs 51. (Fig. 14). When the rinting lever is returned to the position s own in Fig. 13 lug 24 leaves the notch 47', of bar 48, an the printing hammer 50 strikes against the types of the segment 16, resuming the original position, (Fig. 14), under the action .of the springs .51. At the same time pin i6 passes the cam-like projection 45, oI-the rod 34, andsaid rod is pressed downwardly again by the-'spring 43, so that pin 42, of leverf26, again enters the enlargement-44', inthe slot of the rod 34, and displaces said rod 34 toward the right, when the movement of the lever 18 to the right, is continued. In this vcontinued movement, the paw] 33 leaves the recess of carnwheel v32, slides on the circumference osaid wheel,

and drops into the next recess, shortly before the return movement of the lever is entirely completed.

The z'ero sectors 65, which are pivotally .connected with the type sectors 16, are

raised from the other types as long as they ecA are in an inoperative position.' Each of the type segments is-provided with` a clutch finger 67 having projections 68" and 69. These projections are rotatable about the axis 70 and are pressed into the space between tlietype sectors as long as they are in aninoperative position. The end of finger 68, is tapered or inclined in opposite directions. When the segment is in anidle position, pins 72, on zero type sectors 65, are in engagement 'with the apexv of said finger 68, so that said zero types are spaced from the balance of the print-ing types of the se ments (Fig.

'Eac of the type segments 16 is provided with a pin 73, serving as a purchase for the lug 74 ot the finger 69. When one of thev `leased from the apex of iinger G8 and recedes, together with the zero type, into the printing line, Fig. al. Then the type seg` ment continues its rotation, pin 73 slowly slides on the edge 75, of the finger 69, and

sition 'shown in Fig.3. The pins 7L.Jslide` upwardly on the inclined edge ot finger and the yzero sectorr G5, with its` type,g1s

again raisedfwith' respect to the type seg' The ClutchesI G7 yare providedy with ment. lugs 7G. (Figs. 3, 4 and 5)"said'lugshaving bent or angle portions '78` which yoverlap in 77. lliv. 5 Ita. ke 1 is' de dressed. vfor instance a key in the thirdrow counting from the right hand end, the. respective-y clutch 67 is raised.l by. fthe' key lever andflsaiel `eaiteh rocks the'entl clutch 67, on account vof the engagement ot' the lug. 76, with `the lug of' the end dutch, and said end clutch rocks the irsteluteh. .Therejl'oreall of the zero types, rlocated at. the righthand side.

ot the vset cipher, will' drop into 'the vprinting line, While those ,located at .the lett .hand side of the actuated key remain cuts y printing line. Therefore the zeros totln of the set. cipher Willy be printed and the meros at lthe lett Ahand ot the set-,cipher willnotie i printed. 1f the key in the third row; leased, not only vclutch .6?, oit the third tot of eighers, hut also all of those wf, at the right hand side thereof rf rel lrn are raisedl again. .l A resilient comb-shaped element .79- (Fig.

S) provided with teeth 8.0 and 8l, serves tor exact setting of the printing` lype, said ele inententering with its teeth SG, between the ktvpe seorncnts. and with Aits teeth. Sl'hetween the.printin types, this entrance he.- ing .produced by lthe `ujlntnigf leveima short tnne before the hannner str1kesan d ett'eeting a vertical and horizont-al Vadjustment of the types. l/Vhen` the printing lever is returned,.comh 79 releases the typegseginents. The. restoration e'l'ected by .the .common sha". (Figs. 1,. 10, 1l and l2). flhis shattis provided with eccentric disks 833 an renejed in opposition to the rear edges `of hers 6, nf'hieh serve for locking the levers. One end of shaft 82 is beni' ai. est and carries a pin 85 which entende down-v wardly.. The bent. portion 84C projt s .into the path of s. pin S6 disposed en the print-- ing lever i8.. Then the v'printing lever 1S is raised, ,pin E46 raises the 'bent pertion 81k of the shaft andfpesses underneath the saine Without causing a displacement of the trans verse har (Shy the eccentries 83, whielnoseillate tothe rear. Shaft 82 i` controlled hy a. spring?? (Fig.12)-Whichtends to ret shaft. toward an inoperative position.

l to zero. position, `the respective Zero ,types the `Wlyien lever .18v ,is depressed, yfpin t@ engages bent portion 8l. 'l""sliai't ou, and rocks saine with its eveentrie disks toward looking rods or bars (l. These hars are herelore displaced and the pins release l 'a shoulders Fri, ot' the keys so that allot the lievs return to Zeroposition.' lvl-ien it peat the printing o'l' one amount set/eral tunes' in suecesstoinlxt is necessary toprevent the aetuation of the automatic restoring` deviee.y For thispurpose the shaft is adjusted manually' so thatv restoration' of. the sotpar-ts doe-snot take place when the inaehine isrotated several times by ineens of .the erenk, tor multiplying or dividing. For this purpose a slide 88, having a knob 89, whieh. projects outwardly from he machine, is disposed underneaththe, top plate, of the machine; vrlhe knol) SS)y slidesin a slot: 00, ofthe plate,vand norinfgilly occupies a central position in said slot. The slide S8 is provided with a slot 91 at its 4 on shaft .82 projeets into said slot iid last-named pin also oem-ipies eentral positionftvith respect to .said slot I long; as it inoperative. ,ln theA inoperaide 8S (lees not control the tive position .restoring shaft S hen the adjusting l ismioved in. the direction o'i the arleiha/mi end jot slotl 'en the pin. and rocks the saine tersa il the 1. -{By-this,means the eceen ie disks 8f3-are pr .reed inst the .lorflrin hars G `and the mening n'ieelninisn'xu' itlease'fl. The adjusting knob. l may lite In tinted resilientlv .so that itxvih also return to an inoperative position automatically. l

llf'hen the. machine is to be adju .d for repetition, the adjusting knob S) is moved 'n direction of the arrow 7J. It remains in "aid position` on' account of irietional `.en-

'agenient.y The right hand. end. 93 of Athe ot 91, rocks the pin` to the left so that 'Le hein portion Slt (Fig. l0) is,lil"fted out ol the path. of pin 86,011 lever i8, and release of '.,the locking device cannot occur when the printing lever is lowered. 'Vhen the knob S9 is returning to n. central posit/on the res eztting device is rendered opere-.t ve. ilhen it desired :lo disconnect the print ing; lever trein the i,irin'ting mechanism, slide (617) may be shifted to hring a thereof int-o gement with a pin on the l ar L18, This-lifts the oar and. its notchy ;T, eut'et the path e'j the pin 24.

is a spring controlled detent engaging e notches in the earn '-.vlieel tor preventniovement thereof ina ci diree- Lion beyond a,predetermined c.'

fe :sa r', de ,buig the eem wheel ffor prevent-n ement thereof 1n a Centre-Clockwise nirection.

In order to dis .nneet the p. '-ntingg lever from the calculating ineeianis i so that the is ynecessary ina filleul-:lling operation to ref rOO sired number of times for duplicating the rintin o eration I. rovide a slide 54 P g p P adapted for engagement withthe pawl 33 sofas to preventthe latterv from engaging the teeth-of the cam wheel 32. As shown in Figs. 13 and 14, the slide 54C is in an inoperative position but it will be understood that when the slide `54 is moved to the left, then, it will engage the right hand end of "the pawl 33 and prevent the same from env gagi'ng the notches of the wheel 32.

1. Acalculatingv machine comprising in combination, a plurality off keys, a plurality of type segments operatively connected with said keys and spaced apart from each other, and a resilientcomb having teeth projecting into the spaces between said segments to retain the same in lproper spaced relation.

2. A calculating machine comprising in combination, a plurality of keys, a main driving shaft, a printing lxnferadapted to be coupled with the main driving shaft,`

type segments, and means wherebyA movement of the printing lever serves to opel-ate the cover plate of the machine.

4. A calculating machine comprising in sombination, a plurality of crank-shafts provided with rollers, a printing lever, a drawing Crod operated by said lever, a doublearmed pawl, and a disk provided with a wheel operatively connected with the main driving shaft, saidv 4isle being operated by said drawing rod, su stanially as described.

5. In a calculating machine, the combination1 with calculating mechanism, printing mechanism therefor, an "operating member, means operativelypconnectin g said operating member with said'calculating mechanism, a device for disconnecting said means from said calculating mechanism, means connecting said=operating member with said printing mechanism, a device for disconnecting said last named means from said printing f mechanism, an actuating member for said calculating mechanism, and means for releasing connection between said actuating member and said calculating mechanism when the latter is actuated by said operating member.

(3. In a calculating machine, the combination with calculating mechanism, printing mechanism therefor, an actuating member for said calculating mechanism, an operat- -mechamsm maybe actuated by said actuatlng member vwhile said operating member is at rest.

7. In a calculating machine, the c0mbination with calculating mechanism, printing mechanism therefor including type segments and a printing hammer, a printing lever, a bar for operating said hammer, means operated by said lever for actuating said bar to operate said hammer, and a slide for disconnecting said bar from said lever.

8. In a calculating machine, the combination with calculating mechanism, a cam wheel connected with said mechanism, a bar and pawl for operating said cam wheel, an operating lever, and means connecting said bar with said lever during a portion ,of its operating movement.

9. 'Ina calculating machine, the combination with calculating mechanism, a Printing mechanism therefop, a cam wheel connected with 4said calculating mechanism, a bar and pawl for operating ,said cam wheel, a lever operatively'connected with said printing mechanism, means connecting said bar with said lever to operate said Cain wheel, and a slide for throwing said pawl out ot operetive relation withsa-id com Wheel. n

10. In a calculating machine, the combination with calculating mechanism, printing mechanism therefoi` including type segments and -zero type elements pivotally mounted between saidsegments, spring controlled clutch elements for throwing said '/.ero type elements out of printing position and permitting them to assume a printing position, saidclutch elements having co-acting pins and lugs whereby' operation of one clutch element serves to operate the remaining clutch elements, from tile first clutch ele ment operated, to shift the corresponding zero type elements, substantially as described.

1l. In a calulating machine, the combination with calculating mechanism und a plurality of keys therefor, slidestor 1naintaining said keys in a depressed position, an operating lever y for said calclilating mechanism, a com shaft provided with cams for actuating said slides to release said keys, said shaft having means cowacting with said lever whereby said shaft may be actuated, and a device for throwing said means out .of (zo-acting relation with said lever.

1Q. A calculating machine comprising in combination, a plurality of keys all having the same len th of movement from their starting to t cir final actuating position, a lever `actuated by said keys and having oppositely inclined portions for engagement ,/by said kys' 4whereby lthefextent of move-- fvanlu'e ofth' keyr actuated, said Alever having a segment, a 'number disclosing 'Wheel meshy ing with said Segment, and a spring for re-v n testimony whereof have signed my name-to this specification m, the presence of BERNHARD CARL M. BEER.

f Witnesses taining said Wheel in a position of rest, sub- FRITZ .VVEIDENBEIBB` f i FRANZ SQHMALERV. I

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