US1454275A - Machine - Google Patents

Description

Maf 8 R923., y 9 a C. M. F. FRU-DEN CALGULATING MACHINE FiledJun@ 8, 19.20 2 shams-sheen 1 INVENTOR WITNESS ma@ A '1 u1 'OR NE YS May 89 31923. l 154925375 M'. F. FREEN CALCULATNG MACHINE FiledIune 8, 1920 IN VEN TOR cfff F Hap/@ffy B Y l 25 dises are i'ansmitted om 'blie Application To all whom may @Ion/cem:

Be it known that l, CARL l subjeca of lie King ol: Sweden, L resident of Piedmontfllamecln @oilily State of Qalioinia, lieve invented new and useul lmprovemems iii @als ing 'Vlechines3 of which olie ollevs' invention is to speoicato'n. v ously fel-leasing Y The invention elates lo oelooia i iesowing them chimes of lie 'type embodying a ooseeses oiliei Miva'1 mechanism comprising rotatable e of whichu with elle and elates particularly to inea-iis 'n len/oth in *che ing and locking seid discs at l; sliall Gul/lime el during lie opemtioii of llie maoli'oe lThe invention ielates lo caio ,J niines of the ype embodying *seo puy-3 mg Wheels oi @lis-2S lievi l n said'klewi ble teeth, vaifieble as to lie men of mi* '3 lively projectecl and els@ o dises arianged'oi falle jus'mena oi' romion of r on tlie counfimg Wheels me l moved out of' operating values edjuserfl' @Yank handle indirectly by mediate Wheels, $0 the ifigue elise egisteing .meChmuis.a The mechanism is usually dispose() displaoeable elaion to alle oo :mism exis., foi' 'Ehe purpose of sible the direct action of the mi e eee. "wheels of the figure discs o; The teeth operatively piojeee @climbing (liso Contact with :md joie@ ineimediafae Wheel which iff 5e-tion to the ligure discs o; o o mechanism, Each figure (lise io piovided with e Spring-pressed el enlsm to @Fevent oveithiowiiig of iid pi'opely position dise ai; heemliy alle iiiteimefiiay Se detem mechanisms lieve rotalioi of iguie dises so that able '2eme is Pequied to loe emol?. when e plurality of @l fieously oe/ed and lieve iieiey in opemiom.

i om poils i. disclose 'die @enst L e (l is pe pee e View on .fea` seele el' z; oef'ziezi meenmismq calco ises e siiibable u 2 of soun' g 7 Wlii mimi; @lorie oslieii' mobilio@ @ion is eesg.' moiseless `wheels. The cams are provided with projecting so that they may be readily moved circumferentially to vary the number of projecting teeth.

Arranged on the frame adjacent the counting `toothed wheels, and parallel tov the axis thereof, are one or more series of ligure discs 7, in the present instance onlyv one series beinfy shown for the purpose of siniplieitIy. rfhe values adjustedl on the toothed whec s are transferred to the figure discs 7 ithrough the interposed toothed wheels 9 which mesh with toothed wheels 12, formed on or secured to the figure discs 7; The ligure discs are suitably connected by tens carryin mechanism, to cause the rotation of one dise through a complete rev-` elution to advance the disc of the next higher denomination one point. A suitable mechanism for this purpose is shown inmy copendin a D'plication Serial No. 375,689, filed in tie atent Oice on April 22, 1920.

The figure discs, with their associated transfer levers, intermediate toothed wheels and attached toothed wheels, are preferably mounted in a displaccable carriage 14 for the purpose set forth. The figure discs 7 are mounted on a shaft 15 journaled in the carriage. The intermediate wheels 9, which are in mesh with the toothed wheels 12 secured to the figure discs, are journaled on the shaft 17 and lie in position to be engaged and rotated by the projected teeth 5 on the counting wheels.

Bearing in the carriage and disposed in parallel relation to the other shafts therein 1s a rock shaft 18 'on which is journaled a plurality of bent levers 19, each lever'having a curved or rounded head 21 contiguous to an intermediate toothed wheel 9, there being a lever associated with each wheel. The head lies adjacent the intermediate toothed wheel in the zone of engagement of the projected teeth 5 with the wheel, and the lever is normally held in such position that the outer or curved face of the head lies in the circle of the ends of the teeth on the wheel. The projected teeth on the counting discs are sufficiently wide to engage both the intermediate toothed wheel and the contig nous lever head, so that when a disc with projected teeth is rotated, the projected teeth simultaneously engage the head 21 and depress it and engage and rotate the toothed wheel.

At its lower end, the lever engages a pin 23 /secured to avslide or detent 24 which is disposed radially with respect to the axis of the figure discs 7, and which is normally held in engagement with the toothed wheel 12, by a spring 25. The detent is provided on its end with a tooth 26 which seats between two teeth of the' wheel 12, holding the .wheel against rotation. When the head the lever is pressed down. by the projecten teeth on the counting wheel, the detent is withdrawn from the tooth wheel 12, permitting the figure disc to be freely rotated by the engagement of the projected teeth with the intermediate wheel.

A detent is provided for each figure disc and ythe plurality of detents, each of which is engaged by a lever, are slidably mounted in the bar 27. The bar 27 is slidably mounted in the carriage, to be moved parallel to the line of movement of the detents, so that all of the detents may be simultaneously disengaged from the toothed wheels 12 to permit the figure discs to be freely reset to zero. Connected to the bar 27 at opposite ends are levers 28, which are secured to the rock shaft 1S, and means are provided for rocking the shaft to move the bar. Secured to the rock shaft is a lever 29 projecting to the front of the carriage and carryin on its end a key 31 which, when depresse disengages the detents from the toothed .wheels 12 so that the figure discs may be reset to zero.

In the present construction, means are provided whereby the depression of the key not only frees the figure discs, but also rotates them to zero. The figure discs are frictionally mounted on the shaft 15 in such manner that, with the detents withdrawn, the discs ma be rotatedeither by the intermediate toothed wheels or by rotation of the shaft 15. The shaft is provided on its surface adjacent one end with a ratchet 32 which is engaged by a springllpressed pawl 33 pivoted to the gear 34. eshing with the gear 34 is a rack 35 which is pivotally attached to the lever 29, by a slip 'oint, so that the lever 29 may be depree a suicient distance to withdraw the detents from the toothed wheelsl12 before the rack is moved. Further depression of the rack causes the shaft to be rotated to brin the figure discs to zero. Secured to each gure disc on the side opposite thetoothed wheel 12 is a projection 36 which o rates to movi` the transfer lever 37, the ead of whit` normally lies in the path of the projectif,l and`v when the projection is in contact i the transfer lever, the figure wheel is set at zero. As the shaft is rotated, the figure wheels are rotated until the projections contact with the transfer levers, at which time rotation of the figure disc ceases, even though the shaft ma continue to rotate. A spring 38 is provi ed for returning the key to raised position when it is released and, due to the presence of the pawl and ratchet, the upward movement of the rack does not cause rotation of the shaft, so that the figure discs retain their zero setting.

I claim:

1. In a calculating machine, a plurality of rotatable counting wheels having adj ustabl. teeth, registering mechanism including s.

llO

Images