US1516436A

US1516436A - hufeer

Info

Publication number: US1516436A
Authority: US
Publication date: 1924-11-18
Anticipated expiration: 1941-11-18

Description

GALCULATING MACHINE Filed April 26 w22 9 Sheets-Sheet 1 Nov. 18, 1924.

- H. HUBER CALCULALING MACHINE Filed April 26 1929 9 Sheets-Sheet 2 Nav. 18,' 1924- 1,516,436

H. HUBER CALCULATING MACHINE Filad April 26, 1929 9 'Sheets-Sheet s.

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CALGULATING MACHINE Filed April 26, 1922 9 Sheets-Sheet 4 l l f Nov. 18, 1924,

H. HUBER CALCULATING MACHINE Filed Apri 26, 1922 9 Sheets-Sheet 5 f, Wf//f/ f /fA /Lm [13 y 74 @mw [2y :y: 116' 117 112 Nov. 18, 1924 1,516,435

- H. HUBER CALCULATING MACHINE Filed ptil 26 1922 9 Sheets-Sheet 7 l il l n uw Nov. 18, w24- 1,516,436

f H. HUBER CALCULATING MACHINE v Filed April 26, 1925- Skts-Sheet 8 ;I9.7 *941 10g l `9.5r\ lg'. e8

Nov. 18, 1924.

H. HUBER CALCULATING MACHIE Fned Apr 26, 1929 9 sheets-sheet 9 000000000000 OOQQOOOOOOQ Patented Nov. 18, 1924.

UNITED STATES HANS HUBER, OF ZURICH, SWITZERLND.

j `CALC'ULA'.LINC-l- MACHINE.

Application vfiled April 26, 1922. Serial No. 556,747.

To all who/m, 'it 'may concern:

Be it known that I, HANS HUBER, a citizen ot' Switzerland, residing at 45 Englischviertelstrasse, Zurich, Switzerland, have invented certain new and useful Im provements in and Relating to Calculatlng Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, of which the following is a speciication.

The present invention relates to a calculating machine particularly adapted to carry out multiplica-tions wherein by the turning oi a crank a previously adjusted figure (multiplicand) is repeatedly transmitted to a counting mechanism. Whlle 1n most of the hitherto known calculating machines of the kind the adjusting of the multiplicand igures is effected partly by an aXia.1 moving 'of a small driving wheel (Thomas type and similar ones) partly by a radial adjustment of separate teeth of a tooth segment (Odhner type), according to the invention the figures are adjusted by turning tooth segments concentrically to their driving shaft when the latter is at rest in such a manner that when turning the driving' shaft the commencement ofthe tooth segments engages sooner or later with a corresponding wheel of the counting mechanism and turns this wheel until all wheels of the counting mechanism are together moved out of the range of the tooth segments.

Upon the accompanying 'drawings one mode of carrying out the invention is shown by way of example and it is:

Fig.1 a plan of the calculating machine, with various parts thereof in section,

Figs. 244 show each a section along the line a-a of Fig. 1 with a different position of the elements,

Fig. 5 is a section along the line b--b of Fig. 1,

Figs. 6 and 7 which represent cross-sections through the right-hand end of the machine along the line Z-d of Fig. 1 and looking in the direction of the arrows, show driving of governing elements respectively 'and locking elements for the shaft of the adjusting mechanism for the tens-adjustment and the side movement of the adjusting mechanism in side view (partly in section) in two dii'erent positions,

Figs. 8 and 9, which represent cross-sections through the machine on the line e-e, Fig. 1, looking in the direction of the arrows, show the controlling elements for the counting mechanism and two additional ones for the tens-adjustment,

Fig. 10 is a'partial back view of the parts belonging to the tens adjustment,

Fig. 11 is a section along the line c-c in Fig. 1 looking toward the lower end of said ligure,

Fig. 12 represents'a detail relating to the zero-adjusting device,

Figs. 13 and 14 are partial views ofthe machine corresponding to Fig. 1 with an altered position of the elements for the counting mechanism,

Figs. 15` and 16 are partial views (looking from the left in Figs. 13 and 14) of the parts relating to the mechanism for changing from addition to subtraction, Figs. 17 and 18 show in a section correspending to Fig. 2 certain positions of the counting mechanism elements in the ycourse of this change, from addition to subtraction.

Fig. 19 shows a detail of the adjusting mechanism with its driving shaft looking from below,

Fig. 20 shows a fragmentary sectionv corresponding to Fig. 2 with the elements of the counting mechanism and tens-adjustment after the tens adjustment has been effected,

Fig. 21 shows a. plan of the device ior moving the adjusting mechanism side Ways,

Fig. 22 is a partial front view of the mechanism illustrated in Fig. 21,

Fig. 23 is a detail of mechanism shown" in Fig. 4,

Fig. 24 sho-Ws a perspective view of the complete machine.

In two side plates, 1 and 2 which are mounted on a base plate 3 a shaft 4 is supported. This shaft carries on its right end a sleeve 5 turning thereon on which are arranged a crank 6 and six curve-

discs

8, 9, 10, 11, 12 and 18 separated from each other by means of intermediate rings 7. The curve-discs 8 and 9 cooperate with a double lever 15 (Figs. 6 and 7) mounted on a shaft 14. A roller 16 and a pin 17 of this lever rest respectively on the circumference of each of the named curve-discs which upon a turning of thev crank 6 cause the double'lever to make a swinging movement.

A tooth segment 18 is rigidly connected with the double lever which meshes with a toothed wheel 19 keyed to the shaft 4.

The adjusting mechanism (Fig. 19) is mounted on the shaft 4, and it comprises two

discs

20 and 21 which have been made to fit a face milled onto the shaft 4 in such a manner that they cannot turn relative to the shaft. These discs are connected to each other by means of struts 22 andthe struts are provided with notches in which the adjusting discs 23 are guided in such a manner, that they can be turned concentrically with regard to the shaft 4. Every adjusting disc 23 has a handle 23 and a tooth segment 23,. 'lo a bridge' 24 connecting the discs 2O and 21 a spring plate 25 (Fig. 19) has been screwed, having prongs extending therefrom which engage between teeth of the tooth segments 23" and thus hold the adjusting discs in their adjusted positions. The

dises

20, 21 each also carry an

arm

26, 27 pivoted thereon at 123 (Figs. 2, 5 and 19), these arms being connected by a rod 28 the latter, by a swinging out of the arms about their common pivot 123 being brought within and out of reach of the toot-h segments 23". A flat spring 29 fastened to the bridge 24 tends to hold the rod 28 out of the range of the path of the tooth (Fig. 19).

The adjusting mechanism is arranged 1n a frame formed of two

side plates

30 and 31 and of three connecting

stays

32, 33 and 34. This frame is on the one hand guided 'by the shaft 4 and on the other hand by a rod 35 passing through the

parts

1, 2, 30 and 31 the rod by means of stops 36, 37 (see Fig. 21) rigidly fastened thereon is fixed axially with regard to the frame of the adjusting mechanism and is at the same time limited with regard to its turning and thereby held in a certain position by means of a spring 38 (Fig. 21). On the left viewing the machine from the front the rod 35 is fitted with a knob 39 and on the right with a rake 40. WVith this rake meshes an anchor 41 which turns on a pivot 42 and is limited in its movement by a pin 43. .By means of two fiat parallel springs 44 and 45 (see Figs. 5, 11" and 21) the anchor is normally held in the middle position shown in Fig. 21. A pawl 47 mounted on the pin 46 cooperates with the rake 4() the right hand flanged part 47 of said pawl (Fig. 22) in the course of the turning of the crank being moved to and fro by means oftwo

pins

48 and 49 mounted on IJthe curve-

disc

9 and 10 respectively whereby the pawl 47 is brought wi)thin and out of reach of the rake 40 (Fig. 22

Un the inside of the two

side plates

30 and 31 and rigidly connected therewith are curve-disc 50 and 51 (Figs. 2-5). Immediately upon the adjusting mechanism being rotated from its osition of rest (Figs. 2, 3, 5), pins 52, 53 Fig. 19) arranged on the

pawl arms

26, 27 come into Contact with either curve-discs, which have a cam action thereon, whereby the rod 28 is forced into the spaces of the-teeth of the tooth seg-V ments 23" whereby the segments 232 are safeguarded against angular displacement with regard to the shaft 4.

The adjusting discs 23 are provided with figure flanges 54 covering which is arranged a. cover sheet (Figs. 4 and 5) fastened to the

stays

32, 33 of the adjusting mechanism frame providing for fitting the sheet being fitted with slots for allowing the passage therethrough of handles 23 and the teeth of the segments 23 and also with observation openings 55 Fig. 1) in which appears only one figure of the figure fiange 54 and thereby enabling the verification of the adjusted figures to ybe made.

The two

side plates

1 and 2 also support a shaft 56 on which two

parts

57, 58 are rigidly mounted (see Fig. 1). These parts carry the counting mechanism.

The counting mechanism is arranged upon a frame consisting of two shafts 62 and 63 (Figs. 11 and 14) connected with each other by means of

links

59, 60 and 61. The shaft 62 is rigidly connected to` all three links and carries a tube 65 which has a toothed wheel 64 mounted thereon (see Fig. 1). On this tube are arranged figure drums 67 fitted with toothed wheels 66, the drums being separated from each other by means of intermediate rings 68. The axle 63 is fixed only to the links 59 and 60. It consists of two pieces 63 and 63 (Figs. 1 and 12), the latter passing so as to rotate freely through the links 6l. On both parts is arranged a tube 70 (Fig.'1) provided with a toothed wheel 69 meshing with 64, the tube 70 being rigidly connected to part 63. On the tube 70 are mounted toothed wheels 71 separated from each other by means of intermediate rings 72-and meshing with the toothed wheels 66 (Figs. 1 and 4).

The

shafts

62 and 63 or 63 respectively are passed through triangularly shaped notches 57, 58 (see Figs. 1-4, 11 and 20) in the

parts

57 and 58. The link 59 thereby rests normally on a support 73 of the side part 57, (Fig. 11), and the right and slightly conical end of the shaft 62 and the shaft 63 rest on the upper horizontal edge of a support 74 on the side part 58 (Figs. 1 and 5), the shaft 62 normally overlying the support 74 to lsuch a-small extent that upon a slight moving of the frame of the counting mechanism to the left side of the machine, said shaft 62 comes out of the reach of the support 74 and it can then swing within the triangular notch 58 formed in the side part 58, (see Figs. 5, 12 and 14).

. hand end of the shaft 63 The shaft 63 passes loosely through a disc T6 (Figs. l and 12) which has a fiat face which rests on and. is guided on the horizontal upper edge of the support 74 (Figs. 5, 12 and 14) so that. such disk is maintained in a given angular position in relation to the machine; and the shaft 63 also passes looseljv through a disk 7 7 which is attached to a sleeve 77, the latter having a slot 78 therein to receive a pin 7 7I fixed in the shaft- 63 whereby the sleeve 77 and disk 77 will he caused to turn with the shaft 63 but these parts are capable of axial movement on the shaft 63. On the rightis fixed a zero setting crank 479 normally pointing /upwards and between this crank and the sleeve 77 lies a spring 80 which pulls the shaft 63 and thus the whole frame of the counting mechanism to the right side of the machine as part of the zero-setting opera-- tion'. The disc 76 is fitted with an arresting pin 8l (Figs. 1 and 12) which normally engages in a suitably shaped notch 81a in the disk 77. The crank 79 is turned in order to bring the counting wheels into the zero-position, the sleeve 77 and the disk 77 in consequence of such rotation of the crank, being shifted toward the right (Fig. 12) owing to the forcing ofthe pin 81 out of the notch 81a until upon completion 4of a revolution of the crank 79, the pin 81 reengages in the notch 81a, as appears in Figures 1 and 14, rotation of the crank 79 upon completion of the zero-setting operation being thus arrested so that this crank will stand in its normal upstanding position as shown in Figures 6-9.

To the link 59 (see Fig. 1) astem 82 (Figs. l1 and 14) is fixed which carries a sleeve 83 with a lever 84 and a curve piece 85. The latter bears against the side wall 1. The sleeve is provided with a V-shaped notch into which projects a pin 86 of the pivot 82. The curve disc 85 lies within the reach of a roller 87 on the side plate 1. To a projection 57 of the side parts 57 2 Fig. 1 a resilient pawl 88 is fixed which is within the reach of a disc 89 (Figs. 11 and 13) which however in the normal position of the frame of the counting mechanism is held out of reach of this disc either by a pin 90 of the toothed wheel 64 or by a pin 91 of a toothed wheel 69 (Fig. 1).

A locking rail 93 bearing teeth 93 is provided, one end of this rail being fixed to the disk 7 6`whieh is loosely mounted on the shaft 63 and its other end being attached to a disk 92 which is loosely mounted on the shaft 63 (Figs. l, 13 and 14). While the frame of the counting mechanism is in its normal position toward the right-hand side of the machine, the teeth 93A of the rail 93 clear the teethv of and thus permit rotation of the

wheels

69 and 71, but when said frame is shifted toward the left-hand Side of the machine, the teeth 93 of this rail will enter those toothed spaces of the

wheels

69 and 71 which happen to be in register with them, the rail 93 thereby locking the wh-

eels

69 and 71 from turningl (Figs. 1 and 14). Inasmuch as the rail 93 is lixed to the disk 76 the lower flat sideof which rests on the upper edge of the support 74. the rail 93 will always remain in the same angular position relatively to the machine. The sleeve 76 'is confined between the side part 58 and the disk 77 (see Figs. 1, 12 and 14) and hence the rail 93 does not shift endwise when the counting wheels are shifted toward the left of the machine for multiplication or division, so'that the toothed wheels` 71 will come into locking relation with the toothed rail 93 when the counting mechanism is shifted toward the left of the machine.

The shaft 56 carries turnable levers 94 (Figs. 1-3). )Vith a projection 94 each of these levers stands within the reach of an adjusting

95 and 96 of the

toothed wheel

66 and 71 respectively and upon a turning of the toothed wheel the lever will be swung out by said pin when passing. The lower part 94 of this lever co-operates with an angular prong of a s ring cam 97 which can swing about a sha 98 supported from the side parts 57 and 58 (Figs. 2, 5, 10, 11, 17 and 18). The shaft 98 or the spring cam 97 is drawn within the reach of the levers 94 by means of a tension spring 99 (Fig. 5) which acts on an arm 100; it can however by means of a lever 101 mounted on the shaft 98 bev brought temporarily out of the reach of the levers 94 (Figs. 2, 5, 8).

On a fixed shaft 102 turnable tooth segments 103 are mounted which serve for a transmittance of the tens. They are provided with an angular extension which is within the reach of a pawl 104. The latter is mounted on the shaft 56 adjacent to the lever 94 (see Fig. 2), its laterally extending lug 104' being drawn towards the lever 94 by means of a spring 105. A spring 107 attached to the segment 103 and to a rail 106 fixed to the frame of the machine tends to turn this'segment upward, in which position it strikes a bail 108 which passes over all tooth segments 103. It is rotatable on shaft 102, and it can, by means of a link 109 (see Fig. 6) jointed to said bail and to a toothed segment 18 be adjusted in such a manner that it returns the tooth segments 103 from the top to the bottom position (Figs. 6 and 7).

A bail 111 carried on a shaft 110 supported from the

side parts

57, 58 serves to return all swung out levers 94 into the normalposition. It is actuated from the con- 58 (see Fig. 6) can be swung` about the shaft 56 (see Figs. 1, 2 and 3) in such a manner 'that the pairs of

toothed wheels

66 and 71 are either within the reach of tooth segshaft 564 (Figs. 8, 9), the bell crank lever by means of the

pins

113 and 114 bearing against the

curve disks

10, 11. The 4position of the counting mechanism' will be determined by the position of the double lever 112.

A roller 116 on the lever 101 rests on the curve disc 13 shown in Figs. 8 and 9, and by a swinging of this lever and with the aid of the spring 99 the spring cam 97 connected to the lever is brought within and out of reach of the levers 94. The notch shown in the disc 13 serves to arrest the crank 6 (see Fig. 8) in the position of rest.

By means of a spring 119 (Fig. 5) the frame comprising the

parts

56, 57 and 58 is drawn into the normal position (Fig. 5). A notch 10 (see Figs. 8 and 9) in the curve disc 10 which in the position of rest of the crank stands within the reach of the pin 113 makes it possible to move the counting mechanism in this position forward towards the shaft 4.

On the bell crank lever 112 a small double lever 117 is mounted which normally has one end within the reach of a tooth 118 (see Figs. 1, 8 and 9) fixed to the shaft 110. lVhen swinging the bell crank lever 112 1n a downward direction. the upper end of the double lever 117 will bear on the curve disc 12 which is within its reach and this lever will thereby become adjusted in such a manner that while turning it acts upon the tooth 118, the shaft 110 and the bail 111 in order to bring the levers 94 into the normal pos1- tion by the latter.

In front of the adjusting mechanism I further figure rollers 120 (see Fig. 2) have been arranged which serve to indicate the revolutions of the crank. This device has however not been fully illustrated as it does not form the. subject matter of the invention.

The whole apparatus is covered by a casing 121. It is provided with the necessary openings for actuating the adjusting lever 23 and for showing the figure drums 67 and 120.

The calculating machine described works in the following manner: Supposing the elements are in the positions of rest 4shown in Figures 1, 2 and 5. The adjusting mechanism is then in such a position that the pins 52 and 53 lie beyond the reach of the

curve disc

50 and 51 and the spring 29 (see Fig. 19) lifts the rod 28 out of the tooth spaces of the tooth-segments 23". The latter may by means of the handle 23 and by overcoming the spring cam 25 be turned concentrically to the driving shaft 4 for adjusting the number to be added or multiplied respectively. The nearer the first tooth of the tooth segment 23 to the counting mechanism in the starting turning direction of the shaft 4 indicated in Figure -sheet 55 (see Fig. 1);

After the quantities forming a sum or the multiplicands respectively have been adjusted the'crank 6 and thereby the sleeve 5 together with the curve discs 8-13 is turned in the direction of the arrow indicated in Figure 8. The

curve discs

10, 11 thereby pass from the position shown in Fig. 8 into the one according to Fig. 9 where the double lever 112 is swung downward and has turned the. shaft 56 in such a manner that the counting mechanism was moved to the front and towards the shaft 4 (Fig. 3). Thus the toothed wheels 66 become disengaged from the tooth segments 103 and the toothed wheels 71 come within the range of the tooth segments 23". During the further course of the rotation of the crank the curve disc 8 commences to lift the double lever 15 (see Figs. 1 and 6) by means of the roller 16 whereby the tooth segment 18 through the wheel 19 the shaft 4 and therewith the whole adjusting mechanism in the direction of the arrow (Fig. 2). Now the pins 52, 53 come into the reach of the

curve discs

50, 51 and the rod 28 (see Figs. 1 and 19) is by means of the

arms

26, 27 pressed into the tooth segments and these are thereby rigidly coupled to the shaft 4. The latter during the further course of the rotation according to their position with regard to the shaft 4 engage sooner or later with the toothed wheels 71 thereby turning the latter until the roller 16 has reached the outer circumference of the curve dise 8 (Fig. 7). The tooth segments 23 at this moment are in various positions with regard to their toothed wheels 71 according to their respective adjustments. While according to Fig. 3 the toothed wheel has for instance been advanced by ve teeth.

As the curve-disc .8 is fora certain distance concentric, the adjusting discs remain in their position and guard the toothed wheels against an over-turning or back turning. In the meantime the counting mechanism is returned to its initial position by rocking of the shaft 56 through

curvediscs

10, 11 through action of the double lever 112 (see Fig. 8), whereby the toothed wheels 66 engage again with the tooth segments 103. As soon as this has taken place, the curve disc 9 with the assistance manner any adjustable number can be as many times as desired transmitted to the countingmechanism or may-there be added or multiplied. The transmitting of the tens is thereby eiected in the following manner:

If the drum 67 moves from the position 9 into the position 0, the pin 95 of the toothed wheel 66 passes the projections 94 of the lever 94 overcoming the corre.-

sponding spring of the spring cam 97 and swings the lever 94 together'with the pawl 104 into the position shown in Fig. 4. After the projection 94 has been thus disengaged :trom the wheel 66, the pawl 104 of the swung out lever 94 passes out of the reach of the lbent-over portion 103 of the advancing segment 103 of the next following digital place. The latter is at first still held by the bail 108 in the. lower position. Immediately after the counting mechanism has reached its initial position the back turning of the adjusting mechanism commences as it is well known. At the same time the rod 109 movably connected to the tooth segment 18 releases the bail 108 which itselt permits now a raising of the tooth segment 103 under the influence of the spring 107, all of the other segments 103 being held against raising by their corre.- sponding pawls 104. The corresponding toothed wheel of the said next digital place is at the same time advanced by one tooth.

The swinging-out of the lever 94 may vhowever take place also in that position of the counting mechanism in which the toothed wheels 66 mesh with the tooth segments 103, in this case upon the instigation of a transmission of tens initiated from the next lower place.v In this position of the counting -mechanism the .spring cam 97 is by means of the curve-disc 13 and with the aid of the lever 101 vheldout of reach of the levers 94, so that the latter when swinging out offers no resistance to the spring 107 causing a turning of the respective toothed wheel andurther thatl the spring cam does not hinder a returning of the levers 9 4 into their normal positions. This returning is effected by the bail 111 which upon an advancing of the counting mechanism is pressed against the levers 94 being actuated throu h the double lever 117 and with the aid o the tooth 118 and of the shaft 110 whereby the levers are returned to their former position where they areretained b the'spring cam 97 which has swung back again. v

Those advancing segments 103 of which the lever 94 has not been -swung out are held in the initial position by the pawls 104 during the advancing process. The returning to initialposition of the other segments and swung outer levers takes place during the time when the counting mechanism or the toothed wheel 66 respectively are out of the reach of the advancing segments 103 caused by the tooth segment 18 turning the bail 108 by means of the pressure rod 109 whereby the bail returns the advancing elements into their former position. During this movement the pawl 104 is swung out for a moment.

In consequence of the operation described the ligure drums 67 are turned in a sense opposite to the clock hands movements, thus to the front so that the adjusted number was added. A reversal of the 4figure drums, that-is to say a subtraction or division is possible by exchanging the two

shafts

62, 63 in such a manner that the tigure drum 67 with the toothed wheel 66 take the place of the toothed wheels 71 and vice versa (Fig. 14.) The reversing takes place in the following manner: Supposing the counting mechanism is in the position shown in Fig. 1. If now'the lever 84 is turned downward in the direction of the arrow (Fig. 15), then at first by the vV shaped notch oi' the sleeve 83 the stem 82 by means of the stemv 86 and with it the whole frame of the counting mechanism is moved to the left (Figs. 13, 16). In consequence thereof the link 59 moves out of its normal position above the support 73 (see Fig. 13), and at the same time the right-hand end of the shaft 62 (Fig. 1) is drawn axially toward the lefthand side of the machine and out of a position above the support 74. The toothed wheels 71 however come within the reach of the teeth of the rail 93 so that these wheels become locked against rotation on the shaft 63 while they are being reversed in position turn about the shaft '63 until the position shown in Fig. 17 is reached. Upon a continued turning of the lever 84 a turning of the frame of the counting mechanism about the shaft 62 takes place from now until the position according to Figure 18 is reached and then again up to the reaching of the end position one rotation about the shaft 63. In this position the frame of the counting mechanism under the influence of the spring 80 moves to the right and is received and arrested by the

supports

73 and 74.

In the first moment of this reversed movement by means of the lever 84 the curvepiece 85 is also turned which bearin upon the roller 87 forcesthe countin mec anism to move the front towards the s aftA 4 (Fig. 16) in which position it is held by the pawl 88 (Fig. 13) after the latter has been released by a side movement of the pin 90 attached to the toothed wheel 64 of the counting mechanism. It is only released again toward the closing ofthe reversed movement upon a movement to the right of the counting mechanism by the pin 91 of the toothed wheel 69 which will then assume the same position previously occupied by the pin 90. By thls arrangement the toothed wheels 66 during the reversed movement are out of the reach of the tooth segments 103,

whereby said segments are prevented fromv hindering the reversing movement.

When the counting mechanism is moved to the left the pins 95 will pass freely the levers 94 so that the reversing movement is not hindered by said levers.

Upon the counting mechanism having been moved to the left the toothed wheels 71 come into the reach of the teeth of the rail 93. The latter is prevented from turning by the disc 76 guided on the support 74 so that thus the toothed wheels 71 retain during the whole course of the reversed movement their position with regard to the plane of the observation openings in the cover plate 121. Therefore the toothed wheels 66 together with the drums 67 carry out a full revolution, so that at the end of the reversed movement the same figure comes to the top again as before and in the observation opening of the respective place arranged further to the front.

In this position of the counting mechanism the figure drums are driven directly by the adjusting discs 23 instead thereof by means of intermediate wheels 71. Its turning direction is therefore the opposite one as this is essential for carrying out subtractions and divisions. Instead of the pin 95 the pins 96 now effect the swinging out of the levers. 94 for causing the transmitting of the tens.

The zero-position of the figure drums 67 is effected by turning the crank 79 in the direction of the arrow (Fig. 6). In consequence of this movement the sleeve 77 is turned by the shaft 63 and pin 778L which however can take place only if the disc 77 and the sleeve 77 overcome the spring 80 and move to the right out of the reach of pin 81. The resistance opposed to the crank 79 causes the counting mechanism in the first lace to move to the front (in the direction of the arrow Fig. 8), whereby all levers 94 are engaged by the

parts

111, 110, 117, 118 and 112. Upon a turning of the shaft 68 the tube 70 is moved and with the aid of the

toothed Wheels

64,69 the tube is moved positively while the

toothed wheels

71 and 66 together with the drum 67 are moved by friction until the

pins

95 or 96 strike against the levers 94 in which case the zero-position has been reached.l Also in this case the pawl 88 holds the counting mechanism in the outer 'position until the

90 or 91 respectively has returned again to its initial position.

In order to'enable the adjusting mechanism to act at various places of the counting mechanism for carrying out multiplications and divisions it can be moved axially with regard to the shaft 4 together with the frame formed by the 'parts 30-34. This movement is eii'eeted by means of the rod 35 with the button 39 fixed to the left thereof. To the right of the rod the rake 40 has been attached which cooperates with the anchor. 41 and latch 47. The latter serves to arrest in acertain position the rake 40 and thereby the whole adjusting mechanism during the time it is engaged with the counting mechanism. For this purpose shortly before the advancing of the counting mechanism it is caused to engage by the pin 48 with the space of tooth of the rake 4() opposite thereto, upon a returning of the counting mechanism` it is however disengaged again by the pin 49 acting on the eX- tension of the part 47. During the whole time while the counting mechanism is in the rear position7 the adjusting mechanism can be moved so that the crank need not for this purpose be specially arrested in its normal position. If now the adjusting mechanism, as such is usually required when calculating, shall be moved step by step from one place to another, for instance from the left to the right, the calculator presses the button 89 during the rotation of the crank preceding the movement, whereupon after the release of the rake by the latch 47 the anchor 41 will permit such a movement of the former that the latch passes within the reach of the next tooth (Fig. 21 in dotted lines). If then at the commencement of the following turning of the crank the pawl is engaged again, it grips the rake and turns it so far as the tappet 37 permits it (Fig. 11). In this position the rake comesI out of the reach of the anchor and the latch by means of the inclined face of the tooth can move the rake 40 toy such an extent that it can enter the centre of the tooth space. The anchor 41 is guided by the spring 45 in its normal position, thus in the centre of the following space of tooth and thereupon the rake 4() by means of the spring 38 into the reach of the anchor. A considerable amount of time is saved by the fact that the adjusting mechanism can be moved from one place to another during the rotation of the cra-nk. If it shall be moved by more than one place, the calculator with the crank 6 being 1n its normal position turns the rake out of the reach of the anchor by means of the button 39 and the former together with the adjusting mechanism can be brought into any position.

The construction of the described calculating machine is such that most of its elements and especially those used repeatedly in similar ranks are of a very simpledesign and are produced by being pressed or stamped out or by an automatic machining of them. The manufacturing costs of this machine are thus lower than for other machines, the most important parts of them being of a complicated nature and chiefly produced by the milling process, as this is for instance the case with calculating machines of the Thomas or Odhner type.

I claim as my invention 1. In a calculating machine, a driving shaft, a series of setting up wheels on the driving shaft, a handle for rotating the driving shaft, toothed segments on said setting up wheels, said setting up wheels being angularly adjustable in relation to said shaft, means for locking said wheels to the shaft when so adjusted, an additional shaft' and counting wheels on said additional shaft so positioned that they may be moved into engagement with the locked Setting up wheels and will be in engagement therewith during a portion of the revolution of the first named shaft which is determined by the adjustment of the setting up wheels.

2. In a calculating machine, a driving" shaft, toothed segments separately rotatable on said shaft for adjustment, means for locking said segments in their adjusted positions, a revoluble handle, means for connecting said handle and shaft so as to rock said shaft through apredetermined angle upon a complete revolution of said handle,

a second shaft, counting wheels on said` second shaft, means for ymoving said second the reverse movement of the driving shaft l the counting wheels will be disengaged from said segments.

3. In a calculatingy machine, a driving shaft, toothed segments separately rotatable on said shaft for adjustment, means for lockingsaid segments in their adjusted positions, a revoluble handle, means for connectingsaid handle and shaft so as to rock said shaft through a predetermined angle upon a complete revolution of said handle, a second shaft, counting wheels on said second shaft, means for moving said second shaft so as to bring said counting wheels into position to be engaged by the teeth of said segments upon the revolution of said handle, the arrangement being such that the counting wheels will be engaged by the segments during a portion of the revolution of said handle determined by the adjust-l ment of the segments, and such that upon the reverse movement of the driving shaft the counting wheels will be disengaged from said segments, and means adapted to engage the counting wheels upon the release thereof from the segments which prevents undue movement of the counting wheels and Y effects the tens transfer.

In testimony whereof I .have signed my name to this specification in the presence of two subscribing witnesses.

HANS HUBER.

4Witnesses:

CARL Munson, ERNST NEUGEL.