US1777890A - Automatic speed-changing device for tabulating machines - Google Patents

Description

R. E. PAGE Oct. 7, 1930.

ATOMATIC SPEED CHANGING DEVICE FOR TABULATING MACHINES- Filed June 25, 1925 4 sheets-sheen (g4/Wentorot.7, 1930. vR E PAGE 7 1,777,890

AUTOMATIC SPEED CHANGING DEVICE FOR TABULATING MACHINES Oct. 7, 1930. v R. E. PAGE '1,777,890

AUTMTIC SPEED CHANGING DEVICE FOR TABUL'IINGV MACHINES Filed June 23, 1925 4 Sheets-Sheet 3 @5v *hay Hmmm@ R. E4. PAGE Oct. 7, 1930.

AUTOMATIC SPEED CHANGING DEVI-CE `FOR TABULATING MACHINES Filed June. 25. 1925 4 Sheets-Sheet 4 l l I y gunna/dm I f @2543' @WCM/u@ 1/ Patented Oct'.` 7, 1930 UNITED STATES PATENT oli-"Freier RALPH E. PAGE, OF BIN GHAMTON NEW YORK, ASSIGNOR T0 THE TAIBULATING MA- CHINE COMPANY; QF ENDICOTT, NEW YORK, A. CORPORATION F NEW JERSEY v transmission devices are l Uromric SPEED-CHANGING DEVICE ron TABULATING imcn'mns Application led J'une 28, 1925. Serial No. 38,977.'

This invention relates to improvements in tabulating machines andmore particularly relates to the driving means for these machines.

In certain tabulating machines now on the market provision is made for drivin the tabulator at a comparatively low spee forlisting items and at a higher speed when the machine prints total entries and does not list individual items. In certain of these'machines rovided which are manually shiftable'to e ect a drive at one speed or another. The transmission shift devices are usually interlocked with the listnon-list lever of the tabulator to compel the pro er setting pf the transmission in aczor ance with the setting of the list-non-list ever.

Other machines 'require that the first card cycle when the machine is set for tabulatin be performed at a relatively slow speed an p subsequently the remaining card cycles are eiected at the usual high tabulatin speed. Some machines 'of this type secure t ese results by means of two speed motors which ma be used either inconnection with or wit out a speed'changing transmission.

According to the present inventionk a trans- 'mission of special type is provided intermediate the driving motor and the-tabulator and provision is made for automatically controling this transmissionto secure higher or lower driving speeds according to the driving speed r uirements of the-ftabulator. Control of t e speed changing transmission 'is secured by control devices on the tabulating machine. Provision is made for automatically controlling the transmissiontosecure high speed or low speeddrive thereby according to Whether thetabulator is tabulating or listing and provision is also made for automaticall running the tabulator at low speed for the rst card cycle when the machine is set for tabulating and` for subsequently changing the transmission automatically to drive the tabulator for the subsequent card cycles at the higher and'normal tabulating speeds. Furthermore these results .are secured by means of a single speed motor. AllV changes 0f driving speed. of the tabulator are secured of the transmission. 4

Figs. 4* and 4b taken together represent the circuit diagram of a tabulatpr incorporating the present improvements.

In more detail in the drawings, in Fig. v1v

and in the circuit diagram, the tabulator motor is re resented by the usual conventional symbol designated by T, and P is the pulley 0f the tabulator.

Referring, to Fig. 2, thetransmission in- M. The transmission is generally f y cludes a drive shaft 13 driven by the motor c TM in any suitable manner. 20 is the driven shaft of the transmission carrying a suitable pulley 21 receiving the belt which cooperates with the tabulator pulley P. The transmission broadly may be said to be of the differential planetary type. Control of speed changes in the transmission -is obtained accdrding -to whether or not a magnet winding 22 is energized or not. This magnet when energized is adapted to draw an armature or shoe member 10 to the right from the position shown. \Fig.2 shows the parts with the magnet 22 deenergzed and with the parts .of the transmission in proper position for driving the tabulator at relatively low speed. With 22 deenergized the shoe member 10 is held in the position to the lef-t as .shown in cooperation with the brake or4 clutch member 11" whicE is lixed against rotation by being fastened tothe casing of the transmission. The parts are held in this position by means of spring 12. The drive from shaft 13 to 20 iiow is as follows: Shaft v13 rotates rotating with it a spider14. A gear 15 which is integral with a sleeve 16 isheld stationary and against rotation inasmuch'as the-sleeve 16 is keyed to the armature member 1Q which at asy Y' this time is stationary. With gear 15 stationary, drive is `secured through gears 17-18, toa gear 19 -fast on the end of shaft 20. Itwillbe understood that gears 17 and 18 are of different diameter and rotatearolmd with the s ider 14. In this way-the driving.

pulley' v21 is rotated at vlow speed. Y

For h igh s 4drive, immature l10 is drawn7 to the right y the energization of magnet 22 and when in thisl "tion is held aghinst fa brake shoe or -cliitc member 23. This brake shoe or clutch member 23 is suitably slotted to receive a member 24vwhich is fitted to the y 'is tion. The tabulator includes the usual pins 25 carriedlby yspider 14. When 10 isV to 'the right and in cooperation with clutch shoe 28 gear 15, lsleeve 16, armature ine'mber 10, member 23.and pins 25 are all united togetherwiththe result'that direct drive is secured from 13 to 20 driving 20 and pulley 21 nated GI-5 is serially dispod in a line including thei transmissioncontrolling magnet 22. Other contacts controlled by the oup indicator magnet arethose designated I-8.

Thesecontacts are so controlled bv the group indicatorzmagnet 92 as to open after theiirst cardcycle when the group indicatormagnet92 r becomes energized. The contacts GI-8 are l alwaysclosed during listing operations. `Con tacts IJ-3 are disposed in thecircuit tothe group indicator magnet 92 and are also dispose in a circuit extending to binder post 12-and including contacts Z -2.' -Contacts Z-2'are closedcfor tabulating and open when listing. These contacts are controlled b the list-nn-list lever of the tabulator; Y much as' contacts Z-2 are held open at all.

times 'during listing operations the ma et 92will not become energized at an time uring the' cle either before orafterthe first card cycle. listing the contacts GI-5 will remain open,

` magnet 22 will remain deenergized and, conuently, the transmission will beso contro led as to run the machine at the relative' ly slower listing speed. When the machine. ating contactsV Z-2 will be is set for tabu closed. Then upon the end of the first ,card

cycle cam contacts L-B `will 'close' andbring;

about the energizatioii of group gindicator 'beeno nire no further description.` It A Achine is set for ta ulati :printing ma ets. and high speed'driving con'- .Y

erefone when the machine isset for` tios' in said transmission.

magnet 92. Energization' of 92 will -close contacts Gli-45 and thus bring about theen ergization of transmission control magnet 22. After this magnet has become ene y aed the machine will continue to run at the i l ertabulatin speed. Colmacts GI -5 haviig pene during. the .first card cycle `the machine will -run atnelatively. lower speed during the tabulation. of the first card the I v The only other contacts which are nesesllthOS ALV .-I GI-8- These contacts open after the l .stcard cycle when the group indicatorl magnet'92 is energized and they also remain closed when the machine is set for listing. /Tlieae'v contacts GI-8 are'employed for establishing a supply of current to the printer magnetsat all times when the machine is set for listing and also durin ,the first card cle when the 85 machine is set or tabulating. thiswaythe Y group `number ma be printed when the ma For total printing other contacts contro the circuits-to the Contacts 'f arecontacts. which-'dre closed as shown 'during listing operations* and open during tabulating operations. What I claim is :--V 1. ing ta ulating' devi ces, a driving means therefor and a speed changingy transmission v driven by said driving means and having provisions for drivingrthe said tabulator atvarious speeds, and means responsiveto the i type of operation performed by the tbulating devices for automatically changing the' d .driving ratios of' said transmission Aevice.

2. In a tabulating 'machine -ini'udngf'in m, combination with a tabulator' and driving devices' therefor, atransmission device 'intermediatesaid'rlrivin devices andd the said tabulator, and means or automatically controlling 'the' eifectivity of said; transmission l.

device controlled in accordance with the`type of operation performed by the tabulator to drive the latter at high speed during high i speed cycles, and td drive the tabulator at lower cycles. v

3. In wrecord controlled machine-includi'iig'tabulating devices and a drivingmeans ',therefor, a s

Atermediate t e tabulatorand driyin'g means` changing transmission inf. I

Vfor driving the former at various speeds and means controlled in accordance with the type` of operation performed by said tabulator for 'automatically changing the speed drive ra- 4. In a record Y ntrolled machine includ-v l ing tabulating devices and a driving means ,Y therefor, a speed changing transmission in'- termediate the tabulator and driving means for driving the former et various speeds and always n a record controlledmachine incliid-A 5 speed for lower speed tabulating u.

means controlled in accordance with the type of o eration performed by ,the tabulator for esta lishing automatically high or low speed driving conditions in said transmission whereby the tabulator is driven at high or low speed in accordance with the status of the control means in the tabulator.

5. In a record controlled machineinclud-v ing tabulating devices and a driving means therefor, a speed changing transmission intermediate the tabulator and driving means for driving the former at various speeds and means controlled in accordance with the type of operation performed' by the tabulator for' automatically controlling said transmission and effecting thereby 'a relatively low `driving speed for the first card cycle and for thereafter automatically establishing in said transmission a relatively higher driving speed for the'tabulator during subsequent card cycles.

6. In a record controlled machine including tabulating devices and a driving means therefor, a` speed changing transmission intermediate the tabulatorand driving means for driving the former at various speeds and means controlled in accordance 'with the ty of operation performed by.` the 'tabulator fidi' automatically controlling said transmission and for electing thereby a relatively low driving s d for the tabulator when the latter is set or listing-and for effecting thereby A. a relatively higher speedof drive for the tabulatorwhen the latter is tabulating items and printing only the totals thereof.

7. In a record controlled printed tabulator includin a shifting device for selectin ing or ta ulatingoperation of said-tabu ator, a

riving mechanism and 'a speed changing transmission intermediatee said driving mechanism and said tabulator and means re-v sponsive to the type of operationv performed .by the tabulator and controlled by said shift-s ing device` for automatically selectinga low speed ratio for said transmission durin listin operations and a high speed ratio uring ta ulating.

8. In a record'controlled printing tabulator includin a shifting device for selecting listing or ta ulating o ration of` said tabulator and means'for printing data during the first cycle of tabulating, a driving mechanism and a speed ,changing transmission intermediate said driving mechanism and said Vtabulator, means controlled b said lshifting device for automatically se ecting p alow speed ratio for said transmission during listing operations and means controlled conjointly by said shifting device and said tabulator for automatically selecting a lovvv speed ratio for the transmission during .the initial cycle of tabulating operations and thereafter a high speed ratio for Ithe subsequent tabulatin cycles.

9. In a' recor controlled printing tabula-' tor, controlling mechanismI for selecting tabulating operations involving printing or tabulating operations without printing a driving mechanism and a spee changing transmission intermediate 4said driving -mechanism Vand said tabnlatorand means controlled-in accordance with the \type of operation performed by said tabulator for automatically selecting a low speed ratio fory said transmission during printing cycles and a high speed ratio during straight tabulating cycles.

V1() In a record controlled printing tabulator, controlling mechanism for 'selecting tabulating operations involving" printing or tabulating operations without printing, drivingmechanism for said tabulator and atwo-aspeed transmission intermediate said driving mechanism and said tabulator, said transmission comprising 'means normally biasing'v it. for lowspeed operation suitable for printing operations and means controlled by said tabulatorV for yieldably setting said transmission forv high speed operationduring tabulating cycles without printing.

11. Ina record controlled printingtabulator including controlling means for selecting tabulating operation involving printin or tabulating operation withoutprinting, riving mechanism and a two speed transmission intermediate said driving mechanism and tabulator, said transmission including electromagnetic means for selecting the various s `ed'ratiois thereof, a control circuit for said v e ectroma etic means and means controlled `by said' ta ulator for selectively controlling ratio for operations not intab'ulator and a twov speed ltransmission interroup indicating control rations' involving printing mediate-said driving means and said tabulator and means controlled by vsaid group indicating mechanism for selecting a lowl speed ratiofor said transmission during the initial lll cycle oftabulator operation and thereafter a highs ratio. t

13. 11 -a record' controlled printingstabulator including roup indicating control mechanismfor e ecting rinting of'group.

desi atingl data during t e initial c Ycle of tabu ating operations', driving means or said tabulator anda two-speed transmission 'intermediate said driving means and said tabulator, said transmission comprising an electromagnetic device for selecting a high or Y low speed driving ratio therefor, a control circuit for-,said electromagnetic device including a circuit actuator controlled by said' "iso groupl indicating mechanism for governing l the energization of said circuit to automaticall select a low speed driving ratio for the 'initial cycle and thereafter a high speed driving ratio.

vio

the first.

15. In a record controlled printin tabulater including tabulatinv devices an printing devices and contro circuits therefor, driving means for said tabulator and a two 'speed transmission intermediate the driving means and the tabulator, electromagnetic means controlled bythe tabulator for controlling the printing control circuits to select i tabulating operations with or without print. ing, and means controlled by said electro- 'a low speed ratio for said transmission durl ing cycles involving printing and al high i speed ratio during cycles not involving printl jlator including tabulating devices and printlim 'ing devices and control circuits therefor,

driving means for said tabulato and a two speed transmission intermediatethe driving means and the tabulator, a shiftin device comprising means for controllin said printing circuits to select listing or ta i'ilating operation of said tabulator, means automatically controlled by said tabulator for control-- ling said printing circuits to effect printing during the initial cycle of tabulating operation andmeans controlled 'ointly b said last named means rand said s iffting device for selecting a low 'speed ratio for said-transmission during printing cycles and avhigh speed ratio during non-printing cycles.

ijn-1,890 t 'fmechanism including electromagnetic means for automatically controlling said (printing circuits tociect print' of group esignating data' during the initial cycle of tabulating operations and nieans controlled jointly by said shifting' mechanism and said last named-electromagnetic means for controlling said transmission control circuit to automaticallyselect a low s ed ratiofor said transmission during printing cycles and- 'a high nonriiiting,cycles.

speed ratio durin I ereo I hereto affix-my sigf In'vtestimony w nature.

`magnetic lmeans for automatically selecting 16,. Iii a record controlled printing tabu- 'RALPH E. PAGE. j K f iwk los `17. In a" record lcontrolled printin tabuy lator including tabulatin devices an printing devices and lcontro circuits. therefor,

driving means `for said Atabulator and 'a two speed transmission intermediate the driving lmeans and the tabulator, said transmission including electromagnetic means for selecting hi h or loili1 s eed ratios therefor and a .y 'i

contro circuit or said electromagnetic means, a'lshiftin mechanism comprising means for control 'ng said lprinting,circuits to select listingor tabulatng operation of slid bulator, indicatmg wntrolrl.. Y

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