US2319325A - Cash register - Google Patents

Description

y 1943 M. JANHUNEN ETAL 2,319,325

' CASH REGISTER Filed S ept. so, 1940 4 Sheets-Sheet 1 LI I Jam/tn May 1943 M. JANHUNEN arm. 2,319,325

CASH REGISTER Filed SGPtT QO T 1940 6 4 Sheets-Sheet 2 MMIMM Ml-Wm, 1 l J? a 3 {ff/Maw M y 1943 M. JANHUNEN ETAL 2,319,325

CASH REGI STER Filed Sept. 30, 1940 4 Sheets-Sheet 3 [1/91/14 0 M z t 2 all/1 ,414,

y 8, 1943 M. JANHUNEN Em. 2,319,325

CASH REGISTER Filed Sept. 50, 1940 4 Sheets-Sheet 4 FICL4- m. m/u WM W. i. mwa

Patented May 18, 1943 CASH REGISTER Matti Janhunen,

Helsingfors, Einar Aleksi Oivukka, Tampere, and Ilmari Paavo August Vienola, Helsingfors, Finland; said Oivukka and said Vienola assignors to said .Janhunen Application September 30, 1940, Serial No. 359,140 In Finland April 11, 1-939 9 Claims.

This invention relates to an arrangement of cash registers by which the one-way movement of the driving shaft, driven either manually .or by electricity, is transformed into a backward and forward oscillating movement in such a way that, while the driving shaft turns one or two revolutions, a certain shaft :in the cash register oscillates one turn in one direction and .one turn in the reverse direction. In certain cash registers, especially in .such where the indexing elements are rotatably mounted .on a common shaft, hereinafter called the main shaft, such an oscillating shaft decreases the number of necessary parts and makes it also an easy matter to transmit the movement from this shaft to the other parts of the machine as, for instance, to the feeding arrangement and cutter of the receipt tape, the inked ribbon and checking tape spool-s, the release of the printing hammer etc. at the same time as the indexing elements are moved and brought back to their original position.

The invention, the essential elements of which are set forth in appended claims, is hereinafter described with reference to the accompanying drawings illustrating a preferred form .of a cash register constructed in accordance with this .invention.

In said drawings:

Figure 1 is an elevation of the cash register :r.

viewed from the side of the crank, and with the outer casing removed; Figure 2 is a view, partly in section, of the cash register seen from theside of the key board, the section being taken on the line II--II in Fig. 1 .Figure 3 is a section taken the cash drawer housing; 4 the cash drawer; 5

a spring for ejecting the cash drawer; 6 a rod for locking the cash drawer in normal position; 1 the crank; 8 the crank handle; 9 the crank shaft; ID a side plate fixed to the cast frame;

H a gear wheel secured to the shaft 9.; H. a gear 7 wheel engaging the gear wheel ii and twice as big in diameter; IS the main shaft of the ma chine, which freely passes through the centre of gear wheel 12; and 15 are the keys. The purpose of the above as well as of the other parts of the machine will be clear in connection with the following description of the operation of this machine.

After the number in question has been recorded by depression of keys 15, the machine is operated by turning crank 1. In order that the cash register may carry out all its functions and the crank return from its initial to its final position, the crank must be given two complete turns, in the same manner as is now the case with generally known cash register machines operated manually by a crank. In turning the crank, gear I1 and gear [2 engaging the former both rotate. The rotation of the latter does not directly put the main shaft 13 of the machine in rotation, since shaft 13 freely passes through the hole in gear l2, but shaft [3 will be rotated by means of certain parts which will be described hereinafter. In turning crank I clockwise as viewed on the drawings, the gear 12 turns counter-clockwise. To the gear [2 there is fitted a pin I22 which actuates a member '18 adapted to oscillate about a pin ll fixed to the cast frame of the machine, said member ['8 constituting a power transmitting plate. The shape of this plate will be best seen from Figs. 3 and 4. The power transmitting plate I8 has a slot extended mainly in four directions, the different extensions being marked by reference numbers I9, 20, 21 and '22. In addition, the power transmitting plate l8 has two oblong openings 23 and 24. Along the edges of the latter there are provided guides 25, in which a slid 26 is movable. Slide 26 is operable by means of a pin 27 fixed to a disc 28 secured on the main shaft 13. The disc 28 is toothed along a portion of its peripheryv the toothing being marked on Figs. 1 and 3 by the reference number '29. When the crank has been turned from its initial position through 120, the gear 42 has turned through 60. At the same time a pin i 22, Fig. 3, has been all the time moving along an arcuate surface 26a at the lower part of slide 25, which surface 26a is concentric with the main shaft it, while the power transmitting plate l8 has remained stationary. It is only when pin I22 touches the lower edge 3:9 of the opening i9 that the power transmitting plate [8 begins to turn round pin l7. Then pin 21 causes the disc 28, and, as a result. also the main shaft t3 of the machine to begin to turn. When pin I22 has passed edge 30, it ceases to actuate the power transmitting plate as it then moves in the openings 2i and 29 without touching the power transmitting plate. Only when pin 22 touches edge 3!, it again begins to turn the power transmitting plate. This action will cease again when pin I22 glides along an edge 32 on plate l8, which edge 32 is concentric with shaft I3. On examining Fig. 3 it will be readily seen that when pin I22 circles a whole turn round th circular periphery, the power transmitting plate I8 swings round pin l1 slightly down and then up again into its original position, while pin 122 presses on edge 30 and slides along same. To enable the power transmitting plate to move entirely over to the other side of main shaft l3, or better say underneath the same, there is provided in the upper edge of the power transmitting plate an opening 22 which is so wide that main shaft l3 freely passes through it. In order that the power transmitting plate should not move so that pin I22 should get outside of it through opening 22, the opening has been designed to be shut by means of slide 25. It will be found from Fig. 3 that,.while the power transmitting plate I8 is in such a position that the distance betweenpins H and 2! is as short as possible, the slide 26 shuts opening 22. The latter is quite open when the distance between pins I! and-2'! is longest,

Fig. 4.

' There is thus provided a mechanical relationship of parts of the character described in the introductory paragraph of this specification. This relationship is shown on the drawings in its environment in a cash register. Since the detailed construction of this environment constitutes no part of the invention, no detailed description thereof is here included.

The drawings and the description referring thereto are naturally intended only to illustrate the idea of the invention, within the scope of which the forms suitable for the practical execution of the cash register may vary considerably.

The gear-wheel I2 does not necessarily need to be pivoted on the main shaft but can be otherwise supported. The pin 21 can be directly attached to plate IS, in which case the circular disc 23 must have an oblong recess in which the pin 2'! can move. Also such a construction is possible that the pin 21 is attached to 28 and an oblong recess is made in the end of plate [8 in which pin 21 can move. Also other variations of construction are possible within the scope of the present invention.

All these and similar constructional modifications can easily he arrived at by an expert having become familiar with the principles set forth above, and do not constitute a separate invention, but fall within the scope of the present invention.

l/Vhat we claim and desire to secure by Letters Patent is: i

1. A cash register of the character described, comprising in combination a driving shaft, a main shaft parallel to said driving shaft, a member rotatably mounted on said main shaft and geared to said driving shaft, a pin carried on said member, a lever pivoted at one end for oscillating movement in a plane at right angles to said main shaft and provided with a slot for receiving said pin on said member, the arrangement being such as to impart oscillating movement to said lever by one-way rotation of said member, guides on said lever, a slide movable in said guides, a disc secured on said main shaft, and a pin connecting said disc to said slide for turning said main shaft forth and vbackby the oscillating movement of .said lever, said lever having an opening to permit said lever to move past said main shaft, and said slide being arranged to shut off said opening in a certain position of said lever.

2. A cash register as claimed in claim 1, in which said opening in said lever extends to said slot in said lever.

3.'A cash register as claimed in claim 1, in which said slide has an edge which in said certain position of said lever is concentric with said main shaft.

4.. In a cash register of the character described, a rotatable driving member, an oscillating main shaft concentric therewith, a lever pivoted at one end for oscillatory movement in a plane at right angles to said main shaft, a driver element eccentrically fixed to said rotatable driving member and co-operating with said lever to impart oscillatory movement thereto by one-way rotation of said member, a disc secured to said oscillating shaft, a driver element eccentrically fixed to said disc and co-operating with said lever to transmit oscillatory'movement to said disc and said shaft.

5. In a cash register of the character described, a rotatable driving member, an oscillating main shaft concentric therewith, a lever pivoted at one end for oscillatory movement in a plane at right angles to said main shaft,.a tappet element eccentrically fixed to said rotatable driving member and engaging in a slot in said lever to impart oscillatory movement thereto by one-way rotation of said member, reciprocable means guided on said lever, a disc secured to said oscillating shaft, a tappet element eccentrically fixed to said disc and cooperating with said reciprocable means to transmit oscillatory movement from said lever to said disc and'said shaft.

6. In a cash register of the character described, a rotatable driving member, an oscillating main shaft concentric therewith, a lever pivoted at one end for oscillatory movement in a planeat right angles to said main shaft. a tappet element eccentrically fixed to said rotatable driving member and engaging in a slot in said lever, said slot having one edge for co-operation with said tappet element to impart a rocking movement in one direction to the lever and another edge for cooperation with said tappet element to impart rocking movement in the other direction to the lever at the continued one-way rotation of said rotatable driving member, reciprocable means guided on said lever, a disc secured to said oscillating shaft, a tappet element eccentrically fixed to said disc and co-operating with said reciprocable means to transmit oscillatory movement from said lever to said disc and said shaft.

'7. In a cash register of the character: described, a rotatable driving membenan oscillating main shaft concentric therewith, a lever pivotedat one end for oscillatory movementin a plane at right angles to said main shaft, a tappet element eccentrically fixed to said rotatable driving member and engaging in a slot in saidlever to impart oscillatory movement'thereto by one-way rotation of said-member, guides on said lever, a slide reciprocable in said guides, a disc secured to said oscillating shaft, a tappet element eccentrically fixed to said disc and co-operating with said reciprocable slide to transmit oscillatory movement from said lever to said discand said shaft.

3. In a cash register of the character described, a rotatable driving member, an oscillating main shaft concentric therewith, a lever pivoted at one endfor oscillatory movement in a plane at right angles to said main shaft, a tappet element eccentrically fixed to said rotatable driving member and engaging in a slot in said lever to impart oscillatory movement thereto by one-way rotation of said member, said lever having an opening extending from one side thereof to said slot to permit said lever to move past said main shaft, guides on said lever, a slide reciprocable in said guides and blocking said opening in a certain position of said lever and slide, a disc secured to said oscillating shaft, a tappet element eccentrically fixed to said disc and co-operating with said reciprocable slide to transmit oscillatory movement from said lever to said disc and said shaft.

9. In a cash register as claimed in claim 8, the additional feature that said slide has an arcuate edge which in said blocking position is concentric with said main shaft.

MATTI JANI-IUNEN. EINAR ALEKSI OIVUKKA. ILMARI PAAVO AUGUST VIENOLA.

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