US1381898A

US1381898A - Calculating-machine

Info

Publication number: US1381898A
Application number: US301533A
Authority: US
Inventors: Andersson Wictor Oskar Julius
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-06-03
Filing date: 1919-06-03
Publication date: 1921-06-21
Anticipated expiration: 1938-06-21

Description

W. 0. J. ANDERSSON. CALCULATING MACHINE. APPLICATION FILED JUNE 3, 1919.

1,381, 9 Patented June 21,1921.

' @mmmsz ATT'Y.

f UNITEDSTQAKTEIS PATENT OFFICE.

wic'roaosKAitJULiUs Annnnsson, or MALMQ'SWEDEN;

CALCULATING-MACHINE.

' To (@U whom it may concern:

ieit known that I, VVICTOR Osman JULI S ANnnnssoN, a subject ofthe King of Sweden,

residing at Malmo, in the county of Malmohus and Kingdom of'SWeden, have invented new and useful Improvements in Calculating-'Machines, of specification. p

My invention relates to improvements in calculating machines, such for instance, as that shown and described in Letters Patent of the United States No. 1,160,015, granted to Franz Trinks, under date of November-9,

1915, in which calculations are performed by means of setting disks having adjustable teeth or toothed wheels which transmitthe values represented bysaid teeth to a registering or counting mechanism. And more particularly the invention relates to improvements in calculating machines of. this 7 class in which a mechanism for counting the revolutions of the crank is provided,jwhich' I mechanism preferably "arranged coaxially with the registering mechanism is operated by means of a pinrotating together with the setting disks and cooperating with one of the gear heels in the revolutions counting mechanism'by every revolution of .the crank. In case of division the dividend is first set into the setting disks'and' transmitted to the main registering mechanism by a revolution of the crank in the direction, as is usual in machines of this class. Now the dividend is removed fromthe setting mechanism and replaced by the divisor; Meanwhile after the single revolution of the crank the revolutions counting mechanism indicates the number 1, which must be reset before the CllVlSlOl'l in order to avoid a wrong quotient.

The object of'my invention is to avoid this special operation of resetting the revolutions counting mechanism and for that reason I have arranged the pin that at each'revolution of the crank co'o'perates with the respective gear wheel in the revolutions counting mechanism swingable in a direction transversely of the gear wheels ELIICl'PI'OVIdQd means for manually operating the pin from outside of the machine casing.

For the purpose ofexplaining the invention one embodiment thereof has been illus trated in the accompanying drawings, in

which the same numerals of reference have been used in all the yiewsto indicate corresponding parts.

Specificationof Letters Patent. P te t d J une Application filed June 3. 1919; Serial No. 301,533.

which the following is a In said drawing-Figure l, is a vertical cross section of a machine embodying the inventioinFig. 2, is a plan view of the mechanism and partly in horizontal section illustrating the said pin in meshing position and Fig. 3, is a plan view similar to that shown in Fig. 2 and illustrating thepin in disenv gaged position.

In the drawing, 1 indicates the setting wheelscarried on the shaft 2 and secured thereto. The shaft 2 also carries at one end thereof the usual gear wheel 3 secured to the shaft- Q fland meshing with a gear wheel 5 mounted ona shaft i. The gear wheel 5 is provided with; a pin 7 swingably mounted on I "an opening in the side-wall 9 of the machine casing and wedge'shaped.

When the arm lOrnormally held in the position illustrated in Fig. 2 is manually depressed inward, the pin 7 will strike one of the inclinedsurfaces 12--(only one surface shown on the drawing) of the wedge 11 by rotation of the gear wheel 5 and will thereby swing out of meshing position. As soon as the dividend has been transmitted from the setting wheels into the main register the Y arm 10 is released, so that the pin'will be able to return to its normal position vinto mesh with the gear wheel 8 by the next rotation of the setting mechanism.

I wish it to be understood. hat this embodiment has been shown merely for the purpose of explaining the invent on and that various changes may be made in the general arrangement and construction within the gist of my, invention.

: I claim herein as my invention:

1. In a calculatingmachine, the combi nation with a setting mechanism including disks, mechanism adapted to receive a value transmitted from the setting mechanism, a revolutions counting mechanism comprising numeral wheels and gear wheels and adapted for counting the revolutions of the crank operating the setting mechanism, 01 a pin rotating together with the setting disks and normally meshing with one of the gear wheels in the revolutions counting mechanism at every revolution of the crank, said pin being swingable in a direction transversely of the last mentioned gear wheels, and means for operating said pin "from outside of the machine casing.

2. In a calculating machine, the combination with a se mechanism including disks, mechanism adapted to receive a value transmitted from the setting mechanism, a revolutions counting mechanism comprising numeral wheels and gear wheels, and ad apted for counting the revolutions of the crank operating the setting mechanism, of a pin rotating together with the setting disks and normally meshing with one of the gear wheels in the revolutions counting mechanism at every revolution of the crank, said pin being swingable in a direction transversely of the last mentioned gear wheels, and a movable arm secured to a fined part of the machine and adapted to be manually pressed and thereby to swing the pin out of meshing position. v

3. In a calculating machine, the combination. with a setting mechanism including disks, mechanism adapted to receive a value transmitted from the setting mechanism, a revolutions counting mechanism comprising numeral wheels and gear wheels, and adapted for counting the revolutions of the crank operating the setting mechanism, of a pin rotating together with, the setting disks and normally meshing with one of the gear whee s in the revolutions counting mechanism at every revolution of the crank, said pin being swingable in a direction transversely of the 'last'mentioned gear wheels, and a movable arm secured to a fixed part of the machine and provided with a wedge adapted to be carried into the path of the pin by manual pressing said arm thereby to effect the swinging of the pin out of meshing position when the pin during its motion strikes one of the inclined surfaces of the wedge.

In testimony whereof I have signed my name to this specification.

WICTOR OSKAR JULIUS ANDERSSON. lVitnesses EMIL HoDIN, V. Sonosrniirr.