US1956349A - Calculating machine - Google Patents

Description

April 24, 1934. R. HAASE 1,956,349

CALCULATING MACHINE Filed Feb. 29, 1932 5 Sheets-Sheet 1 April 24, 1934. R. HAASE 1,956,349

CALCULATING MACHINE Filed Feb.'29, 1932 5 Sheets-Sheet 2 April 24, 1934. R. HAASE CALCULATING MACHINE Filed Feb. 29, 1952 s Sheets-Sheet s April 24, 1934. R. HAASE 1,956,349

CALCULATING MACHINE I Filed Feb. 29, 1932 5 Sheets-Sheet 4 J 7 win mu um um April 24, 1934. R, HAASE 1,956,349

CALCULATING MACHINE 5 Sheets-Sheet 5 Filed Feb. 29. 1932 Patented Apr. 24, 1934 CALCULATING MACHINE Richard Haase, Brunswick, Germany, assignor to Brunsviga-Maschinenwerke Grimme, Natalis & 00., Aktiengesellschaft, Brunswick, Germany Application February 29, 1932, Serial No. 595,913 In Germany March 6, 1931 7 Claims.

My invention relates to improvements in calculating machines, and more particularly in calculating machines of the type comprising setting and carrying disks adapted to be axially shifted into and out of engagement with the numeral wheel operating devices. In the following reference will be made to a calculating machine of the type having several columns each for nine keys disposed one beside the other, the keys of each 10 column cooperating with the setting disks which are adapted to be set by the key of each column, according to the value represented thereby,-into position for transmitting the value to the registering mechanism. When a key is depressed setting rails are rocked through an angle corresponding to the value represented by the key, and the said rails shift the setting disks into position for transmitting the said value to the registering mechanism.

My invention relates more particularly to the carrying mechanism, and the object of the improvements is to provide a carrying mechanism by means of which the carrying operation is positively performed and intermediate carrying members such as rockable levers or hammersare dispensed with. Another object of the improvements is to provide a carrying mechanism, in which the helical line on which the carrying teeth are arranged on the carrying disks may be made with a comparatively large pitch, so that the carrying disks having carrying teeth fixed thereto have comparatively small diameters.-

With these objects in view my invention consists in providing carrying disks which are shiftable coaxially of said setting disks.

For thus combining the axially shiftable setting disks with the axially shiftable carrying disks two constructions may be provided: First, all the setting disks and the carrying disks may be 40 mounted on the same shaft, and second, sets of setting disks each comprising say four teeth may bemounted on one axis, and sets of setting disks each comprising say five teeth and the carrying disksmay be mounted on another axis, the said shafts beingrotated either in the same direction or in opposite directions.

The first named construction requires little space in a direction perpendicular to the axisof the shaft and perpendicular to the movement of the slide carrying the registering mechanism.

In'this construction the division of the calculating machine, that is the breadth required for each place, is enlarged. However, this is not objectionablein machines of the class referred to above having key-controlled setting mechanisms,

because the distance between the columns of keys is such that it need not be enlarged in view of the construction of the carrying mechanism.

The second construction is preferable in calculating machines of more simple construction, which have a comparatively small number of places and a few registering devices, because in such machines the numeral wheels of the registering mechanism may be placed close to one another, so that the breadth of the machine is small, while the space required transversely of the movement of the slide is not materially increased, because the diameters of both sets of disks are small in such simple machines having few value positions;

In both constructions carrying disks are mounted on the same shaft with one of the setting disks or with both setting disks. This is possible onlw if the non-movableteeth fixed to the carrying disks are cranked and passed 76 through cut-out portions made in the setting disks, in order that the fixed teeth of the carrying disks may be shifted into the planes in which the setting disks act on the numeral wheels.

Further, the setting disks are formed with cut- 80 out portions through whichthe single teeth of the carrying mechanism, which are connected with the numeral wheels or with the intermediate gear wheels, may pass when the slide is shifted. By providing such cut-out portions the slide may be moved in rectilinear direction, which is preferable to constructions heretofore in use in which it was necessary to lift the slide at each place. Further, the parts of the keys which cooperatewith the said rockable rails have. the same construction in all the value positions of the machine.

For the purpose of explaining the invention several examples embodying the same have been shown in, the accompanying drawings in which the same reference characters have been used in all the views to indicate corresponding parts.

In said drawings,

Fig. 1 is a sectional elevation of the calculating machine,

Fig. 2 is a partial sectional elevation taken on the line 2-2 of Fig. 1,

Fig. 3 is a side elevation showing one of the rockable rails adapted to be set by-the. keys, the said rails being provided with two sets each of four teeth,

Fig. 4 is an end elevation of Fig. 3,

Fig. 5 is a side elevation showing one of the rails provided with five teeth,

Fig. 6 is an end elevation of Fig. 5, l

Fig. 7 is a sectional elevation taken on the line 7-7 of Fig. 1,

Fig. 8 is an elevation showing one of the carrying disks,

Fig. 9 is a sectional elevation showing a modified form'of the setting mechanism and the registering mechanism in which the setting disks are mounted on two shafts rotatable in the same direction,

Fig. 10 is an elevation showing the left hand shaft shown in Fig. 9 and one of the sets of setting disks and the carrying disks mounted there- Fig. 11 is an elevation showing the right hand shaft of Fig. 9 carrying the other set of setting disks, and

Fig. 12 is a sectional elevation showing the setting mechanism and the registering mechanism of the machine shown in Fig. 9, the construction being modified in so far as the shafts of the setting disks are arranged for rotating in opposite directions.

Referring to the example illustrated in Figs. 1 to 8, the setting mechanism is mounted in the machine frame 1 and the registering mechanism on a slide 2. The said slide 2 comprises two side walls 2 connected by rails 2 by means of which it is guided in recesses 1 made in the side walls of the casing 1. The setting mechanism comprises a rotary shaft 3 which is adapted to be rotated directly or indirectly by means of a crank 3 or a motor. On the said shaft 3 the setting disks are mounted, and for each column of keys a setting disk 4 carrying four teeth 4 4 4 4 of different breadths and a setting disk 5 carrying five teeth of equal size are provided. In addition for ca h column, except the highest order of column, a carrying disk 6 6 etc. is mounted on the said shaft which is provided with two cranked teeth 7 '7 etc. By means of the said teeth the carrying operation is transmitted to the numeral wheels, and the said teeth of the successive places are displaced with relation to one another in circumferential direction, so that the teeth are arranged on two helical lines. The setting disks and the carrying disks for each place act in succession each on an intermediate gear wheel 8 which is connected with a single finger 9 secured to or made integral with the hub of the intermediate gear wheel. The said intermediate gear wheels are rotatable on a shaft 10 mounted on the slide 2, but they are not shiftable on the said shaft. Lateral displacement of the shaft 10 is prevented by collars 10 10 fixed thereto and bearing against the inner faces of the side walls 2 of the slide, andaxial displacement of the intermediate gear wheels and the single fingers 9 connected therewith is prevented by collars 10 secured to the shaft 10. Each intermediate gear wheel 8 is in mesh with a gear wheel 12 connected with a numeral wheel 11. The said numeral wheels are rotatable on a shaft 13 secured to the walls 2 of the slide 2, but they are not axially shiftable there- At opposite sides of the setting disks 4, 5 of each value position rails 14 and 15 are provided which are rockingly mounted on pivot bolts 14 15 fixed to angular brackets 25, 26 secured to the frame 1. Each rail 14 is formed with two sets of four teeth 14 ,14 14 14 14 14", 14 14 the teeth of each setting being inclined relatively to the rail at different angles, as is shown in Figs. 3 and 4. The rails 15 are made integral with five teeth 15 in- I clined relatively to the rails at equal angles.

The rails 14, 15 cooperating with the setting disks 4 and 5 are controlled by nine keys arranged in one column one behind the other, and representing the values from 1 to 9. The stems of the keys 2'! are guided in the top wall of the casing, and they are normally held in elevated positions by springs 28. The enlarged bottom end 29 of each stem is formed with beveled faces 30 and 31 (Fig. 2), the beveled faces 30 cooperating with the teeth of the rails 14, while the beveled faces 31 cooperate with the teeth 15 of the rails 15. Thestems of the keys are formed with two recesses 32, 33 located one above the other and adapted to be alternately engaged by a looking rail l which is rockingly mounted in the side walls of the casing 1. When a key 27 is depressed the beveled face of the recess 32 rocks the rail 34, until the said rail engages in the recess 33 of the stem and locks the same in depressed position in opposition to the spring 28. When any key of the column is depressed, the locking rail 34 releases all the keys of the said column, so that a key which before has been depressed is automatically returned into elevated position.

The rocking movements of the rails 24 and 25 caused by depression of any key are transmitted by teeth 35 and 36 carried by the said rails to the setting disks 4 and 5 respectively, whereby a number of teeth according to the value of the depressed key is brought into position for acting on the intermediate gear wheels 8.

Between the pairs of setting disks 4 and 5 of each place a spring 16 is provided which is compressed by the disks moved towards each other by means of the rails 14 and 15, and which returns the disks into initial position or into an intermediate position corresponding to a newly set rail 14 or 15.

If it is desired to set the number 1, the key 27 cooperating with the tooth 14 of the rail 14 of one column is depressed, and the corresponding setting disk 4 is shifted one step to the right, in which position it is locked by the rail 34. If now the machine crank is operated, only the tooth 4 acts on the intermediate gear wheel 8. If it is desired to set the value 2 in the setting mechanism, the rail 14 shifts the setting disk 4 a distance corresponding to two numbers, so that two teeth 4 and 4 get into position for engagement with the intermediate gear wheel 8. In a similar way the values 3 and 4 are set by further shifting the setting disk 4 three or four steps. When the values from 1 to 4 are transmitted to the setting disks the rail 15 is not rocked, because in the said rail no teeth corresponding to the teeth 14, 14 14 14 are provided, so that the beveled face 31 remains inoperative. When a key corresponding to the value 5 is depressed the rail 14 is not rocked, because there is no tooth on the said rail opposite to the first tooth 15 of the rail 15, and the rail shifts the setting disk 5 one step to the left, whereby all the teeth of the said disk 5 get into position for engagement with the intermediate gear wheel 8. In a similar way, when the values from 6 to 9 are to be set, the setting disk 5 is shifted one step to the left, and simultaneously the setting disk 4 is shifted one, two, three or four steps to the right.

When a numeral wheel 11 passes from 9 to 0 or from 0 to 9, and therefore a carrying operation must be performed, the single tooth 9 acts on the cam face of the corresponding carrying disk 6 6 ,etc. and shifts the same to the left. In Fig. 7 the carrying disk 6 has been shown in shifted position. Therefore the teeth '7 get into the plane'of the intermediate gear wheel 8, and by the rotation of the shaft 3 one of the said teeth 7 engages the said intermediate gear wheel. The teeth 7 '7 etc. are cranked, and they pass through a cut-out portion 5 of the setting disk 5. The carrying disks are locked in their normal and operative positions by springs 22 (Fig. 8)

located in the hubs of the said disks and each adapted to engage in either one of two annular grooves 37, 38 made in the shaft 3. Near the end of the rotation of' the machine crank a rail 17 which is axially shiftable in a longitudinal groove of the shaft 3, and which carries a series of lugs 17 is shifted to the right by a cam 18 mounted on the left hand side wall of the machinecasing 1, and at the beginning of the next rotation the said rail 17 is again released, so that a spring 19 returns the same into initial position. When the rail 17 is shifted to the right the lugs 17 return the carrying disks into their inoperative positions in which the springs 22 engage in the grooves 38 of the shaft 3.

' When a multiplication is made the. carriage 2 must be shifted in axial direction. However, the single teeth 9 are in the path of the setting and carrying disks, and therefore cut-out portions 20 and 21 are provided in the said disks, as is shown in Figs. 1' and 8. The cut-out portions 20 made in the' setting disks 4 and 5 are narrower than the rails 14 and 15, so that the said rails are adapted to pass across the same when the disks are rotated. Further, the cut-out portions 21 made in the carrying disks must be so large only that the fingers 9 can pass said disks when the carriage 2 'is shifted.

In Figs. 9 to 11 I have shown a modification in which the setting disks 50 are mounted on a shaft 30, and in which the said disks are held in their normal positions by springs 160 which bear on collars 230 secured to the shaft 30. The setting disks 50 are shifted by therails 150 in the direction of the arrows :11. Further, on the said shaft 30, the carrying disks etc. carrying the cranked teeth etc. are mounted, which carrying disks are adapted to be returned into normal positions by the rail 170. Parallel to the shaft 30 a shaft 30 is mounted in the casing, and on the said shaft the setting disks 40 are mounted which are adapted to be'shifted by the rails 140 in the direction of the arrow 3 shown in Fig. 10. After the rails 140 have been returned into initial positions, the setting disks 40 are likewise returned into initial positions by springs 160 bearing on collars240 secured to the shaft 30. The setting disks 50 and the carrying disks 60 60 etc. act on intermediate gear wheels which are rotatable on a shaft 100, while the setting disks 40 cooperate with intermediate gear wheels 80 mounted on a shaft 100.

In the, construction shown in the said figures the rotary movement imparted to the shaft 30 by the machine crank is transmitted to the shaft 30 through the intermediary of gear wheels 39, 40', 41, both shafts being rotated in the same direction as is indicated in Fig. 9 by the arrows z.

The intermediate gear wheels 80 and 80' impart successive rotary movements to the numeral wheels 110. v I

In Fig. 12 I have shown a modification in which the direction of the rotation of the shaft 30 transmitted thereto from the 1 shaft 30' through the intermediary of gear wheels 42, 43, 44 and' 45 is opposite to that of the shaft 30', as is indicated by the arrows v. The intermediate gear wheel 80' is in mesh with the intermediate gear wheel 80*, and the numeral wheel 110' is driven exclusively by the said intermediate gear wheel 80".

Let it be assumed that the two disks 4 and 5 in Fig. 7 are in working position for a value location, that is all the teeth 4' to 4 of the disk 4 and also the teeth of the disk 5 are in the plane of the intermediate gear 8. The tens finger 9 (Fig. 1) is now immediately in advance of the corresponding carrying disk 6 (Fig. 7),. If now the shaft 8 and the disks 4, 5 and 6 which rotate therewith are" turned in clockwise direction the cranked teeth '7 '7 and '7' at the left of Fig. 1 will first pass by the intermediate wheel 8 without engaging therewith, the spline 17 glides off from the nose 18 (Fig. 7) and the spring 19 moves the spline to the left. Only when the first radial tooth of the disk 5 (shown just above the rails 14, 15 in Fig. 1) has engaged the intermediate gear 8 and turned it one step is the finger 9 turned one step. When this takes place the finger 9 forces the disk 6' to the left so far that the spring key 22 moves into the slots 3'7 of the shaft 3.

Upon further rotation of the shaft 3 the next four teeth of the disk 5' operate on the intermediate gear 8 and then the teeth 4 to 4 operate successively thereon. It is only when these teeth have all operated that the bent tooth 7 of the transposed disk 6' comes into operative engagement with the intermediate gear 8 and turns this intermediate gear one step farther (for a tens transfer). Shortly before the end of the rotation of shaft 3 the spline 17 is forced to the right by the nose 18 whereby this spline carries the transposed carrying disk 6' back to its idle position by means of a lug 17' on the spline.

To sum up it may be stated that the first teeth 7', '7 '1 etc. pass the gear 8 without acting thereon. It is only when the operatively positioned teeth 5 of disk 5 and one or more of the teeth 4 to 4 of the disk 4 are brought into working position and a carrying disk has been moved to the left that the subsequently arriving teeth 7', '7 of the tens carrying means are operative.

In a rotation only one of a pair of teeth 7', 7 7 etc. of the disks 6', 6 6 etc. become operative and the operative tooth is always the one that follows after the teeth 5 and 4 to 4 in the rotation of the disks.

The operation of the fingers 9 as described is not novel but is common to many known calculating machines and particularly to geared calculating machines.

I claim:

1. In a calculating machine of the type having axially shiftable setting disks with five equal teeth and axially shiftable setting disks with four stepped teeth, the combination of axially shiftable carrying disks mounted coaxially with the five-toothed setting disks, two carrying teeth on each of said carrying disks, laterally movable registering means including rotary fingers for shifting said carrying disks each of said fivetoothed setting disks having two symmetrically located slots through which the said carrying teeth may pass, the slots in the successive disks being. progressively offset about the periphery of the disks so as to lie in two helical lines, and the carrying disks each having two peripheral slots for-passage of said fingers.

2. A device as in claim 1, the four-toothed disks havingfour peripheral slots for passage of said fingers, andbeing mounted coaxie'ly with the carrying disks.

3. In a calculating machine, a shaft, setting disks thereon, carrying disks on said shaft, and cranked teeth on said carrying disks, said teeth extending laterally through slots in the adjacent setting disks.

4. In a calculating machine, coaxial pairs of setting disks each pair including a disk with five equal teeth and another with four stepped lateral teeth, carrying disks between said pairs of setting disks, and cranked teeth on said carrying disks extending laterally through slots in the adjacent setting disks.

5. A device as in claim 4, said slots being progressively oifset about the periphery of the setting disks to form a helical row of slots and the carrying teeth being correspondingly arranged.

6. In a calculating machine of the type having axially shiftable setting disks with five equal teeth and axially shiftable setting disks with four stepped teeth, the combination of axially shiftable carrying disks mounted co-axially with the five-toothed setting disks, two parallel shafts, one supporting said five-toothed setting disks and said axially shiftable carrying disks and the other shaft supporting the four-toothed setting disks, two cranked teeth on each of said carrying disks, two symmetrically located slots on each of said five-toothed setting disks to receive said cranked teeth in a carrying operation, the slots in the successive disks being progressively offset about the periphery of said disks so as to lie in two stepped teeth, the combination with said disks of axially shiftable carrying disks, a single shaft on which all of said setting disks and carrying disks are mounted, two cranked carrying teeth on each carrying disk, laterally movable registering means including rotary fingers for shifting said carrying disks, each of said five-toothed setting disks having two symmetrically located slots through which said carrying teeth may pass, the slots in the successive disks being ofiset progressively about the periphery of the disks so as to lie in two helical lines, there being also a pair of adjacent recesses in each of said setting disks and carrying disks to permit said fingers to pass the disks and the respective recesses of each pair being alined throughout the series comprising all the setting disks and carrying disks.

RICHARD HAASE.

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