US3066862A - Ten key adding listing machine - Google Patents

Description

Dec. 4, 1962 E. ZIMMERMANN 3,066,862 TEN KEY ADDING LISTING MACHINE Filed Dec. 28, 1959 2 Sheets-Sheet 2 IMVENTDR ERNST Z/MMERNHNN ii s.

United States Patent Patented Dec. 4, 1982 ice 3,065,862 TEN KEY ADDING LHSTENG MACHINE Ernst Zimmermann, Zurich, Switzerland, assignor to Machine Tool Works @erlikon, Administration Qompany,

1Zurich-0erlikon, Switzerland, :1 company of Switzer- Filed Dec. 28, 1959, Ser. No. 862,275 2 Claims. (Cl. 2356d) The invention relates to a ten key adding listing machine, which in the usual manner is provided with a pin carriage carrying the set pins and is shiftable relative to the key board, and is provided with two nought keys, one of which serves for the operation of a single set pin, while the other one is designed for Simultaneous operation of this set pin and of a second set pin adjacent to this set pin in the direction of movement of the pin carriage, and which has also an operating member for a third set pin adjacent to the two aforesaid set pins likewise in the direction of movement of the pin carriage.

In adding listing machines of this kind it has been usual hitherto to provide a third nought key for the simultaneous operation of all three set pins. Thereby the entering of three consecutively positioned noughts within or at the end of a number is facilitated. However, as any increase in the number of keys of a machine involves a complication of its operation and is particularly undesirable for the touch method, the invention has the object of allowing the simultaneous adjustment even of three noughts in one step with two nought keys only.

With this and other objects in view which will become apparent later from this specification and the accompanying drawings, I provide in a ten key adding listing machine having two nought keys, in combination: a pin carriage capable of being shifted to-and-fro in one direction; a group of set pins mounted in the said pin carriage in a row in the said direction and shiftable transversely of the said direction; a first main slide in driving connection with one of the said nought keys and in operative connection with a single one of the said set pins; a second main slide in driving connection with the other one of the said nought keys in operative connection with both the said single set pin and another single set pin arranged adjacent the said first single set pin; an auxiliary slide in operative connection with a third set pin, the said other set pin lying between the said first set pin and the said third set pin; movable holder means for the said auxiliary slide, the said holder means keeping the said auxiliary slide normally in a rest position and permitting an idle movement of the said auxiliary slide in the said direction as well as a working movement of the said auxiliary slide transversely of the said direction; and actuating means for the said auxiliary slide provided on the said main slides, the said actuating means effecting the said idle movement of the said auxiliary slide upon actuation of a single one of the said nought keys, and effecting the said working movement of the said auxiliary slide upon simultaneous actuation of both the said two nought keys.

These and other features of my said invention will be clearly understood from the following description of a preferred embodiment thereof given by way of example with reference to the accompanying drawings, in which:

FIG. 1 is a perspective front view of part of an adding listing machine in the rest position;

FIG. 2 is a diagrammatic vertical section of the machine with the single nought key depressed and the double nought key omitted;

FIG. 3 is a diagrammatic vertical section of the machine with the double nought key depressed and the single nought key omitted, and

FIG. 4 is a diagrammatic vertical section of the machine with both the single nought key and the double nought key depressed at the same time.

The pin carriage comprises two plates 23 spaced from one another between which a stationary guide rail 13 is arranged on which the upper plate rolls by means of a roller 25. The two plates are provided with several rows of mutually juxtaposed guide slots 24 for the set pins and with further guide slots for L-shaped Zero set pins 26, 17 and 18, one of the rows of set pins being associated to each of the zero set pins. A rnovable abutment 5 is arranged in the path of the zero set pins and serves for limiting the path of the pin carriage, when the latter moves in the direction of the arrow A under the bias of a spring (not shown) after the depressing of one of the two nought keys 3 and 19. Each of the Zero set pins may be depressed in its guide, and then moves into a position in which it is outside the range of the abutment 5.

In order to depress the zero set pins 26, 17 and 18 three slides 19, 20 and 21 are provided. The end of the slide 19 lies above the longer leg of the zero set pin 26, that of the slide 20 lies over the two longer legs of the zero set pins 26, 17, and that of the slide 21 lies over the longer leg of the zero set pin 18. The two slides 19 and 20 form angular projections of the two stems 4 and 9, respectively, carrying the nought keys 3 and lit, while the slide 21 forms part of a lever 11. The stems 4 and 9 are each guided in a slot of the upper stationary plate 6 and carry each a guide pin 22, which engages into a slot of a lower, likewise stationary plate 7 and carry each a compression spring 8. On an angle piece 15 fixed to the upper plate 6 a link 12 1s articulated, on which in turn the lever 11 is pivotally attached. The latter carries a pin 14 projecting into the plane of the stems 4 and 9, and is pulled by a spring 16 towards the upper plate 6. The stem 4 has a projection 27 pointing towards the pin 14, and likewise the stem 9 has a downward projection 28. Both these proections form in the rest position of the device shown in FIG. 1 a V-shaped yoke opening downwardly and reaching over the pin 14 with clearance. The springs 8 bias the stems 4 and 9 upward until they abut stops 29 on the plate 6 from below. in order to facilitate the simultaneous actuating of both keys 3, 10 their adjacent flanks 30 are positioned at an angle to the plane of the stems 4, 9.

The abutment 5 is formed by the end of a lever 31 pivotally mounted on the plate 7 behind the guide pin 22 and subject to the bias of a tension spring 36, on which lever a cam 32 is attached. The face sloping backward in FIG. 1 of this cam is arranged opposite a pin 33 carrying a lever 34-, which is pivotally attached at its rear end (FIG. 1) by means of a holder 35 fixed to the plate 7, and is passed under the angular portions of the slides 19, 2t and 21. This lever is in driving connection, in a manner not shown in detail, with the set pins guided in the slots 24.

The manner of functioning of the adding listing machine described will now be described. By depressing one of the number keys (not shown) the set pin located under it and guided in one of the slots 24 as well as the lever 34- are depressed, the pin 33 abutting the cam 32 and forcing the same forward, while turning the lever 31. In the swung-out position of this lever the abutment 5 lies outside the range of the zero set pins 26, 17, 18 so that the carriage moves one step in the direction of the arrow A under the bias of the spring above-mentioned, not shown. After releasing the number key serving for moving the set pin the lever 31 is swung back by the bias of the spring 36 into a position, in which the abutment 5 engages between the zero set pins 26 and 17.

arr-cases At the same time the lever 3 is swung upward by the cam 32. The adjustment of a further number effects in a like manner the shifting of the carriage another step; after said step the abutment comes again to he betewen the two. Zero set pins 17 and it In this manner numbers composed of several digits may be adjusted.

When between any two digits of a number or at the end thereof a nought occurs, the nought key 3 is depressed. Then the stem as shown in 2, pushes the zero set pin lying under it downwards and at the same time turns the lever 3d, whereby the abutment 5 gets in the mannc described out of the range of the Zero set pins. Together with the stem also the projection 27 moves downwards. it thereby hits the pin 34 and moves the same slightly to the right, putting the link 12 into an oblique position. This idle movement is however without effect on the Zero set pins of the carriage. The latter then moves in the direction of the arrow A under the action of the spring bias, until the Zero set pin adjacent the depressed zero set pin in the direction opposite the arrow A abuts the stem Upon subsequently eleasing the nought key 3 the latter moves together with the stem 19 upward under the bias of the spring 3, and thereby releases the carriage for the termination of the step initiated. At the same time the lever 31 is swung back to the starting position by the spring 36. The said zero set pin aojucent to the depressed zero set pin comes into contact with the abutment 5 when the carriage is shifted, and thereby prevents any further movement of the carriage.

When in the number to be adjusted or at the end thereof two consecutive noughts occur, the key marked with two noughts is depressed as shown in PEG. 3. The slide 2% connected to the stem 9 thereby depresses simultaneously two adjacent Zero set pins and the lever 34, while the projection 28 pushes the pin 14 and accordingly the lever 11 slightly to the left. As already described hereinabove, the carriage moves to the left. Since, however two Zero set pins have been depressed simultaneously this movement covers two steps.

When in the number to be adjusted three consecutive noughts occur, the two nought keys 3 and 10 are depressed simultaneously. This entails the shifting of the slides ll), iii, and the turning of the levers 31, 34- in the manner described. Since now 'both projections 27, 23 engage the pin lid simultaneously, this pin, and with it also the lever ll, are moved downward against the bias of the spring 16. its slide 21 comes in this working movement to rest on a zero set pin 18 which in FIG. 4 lies immediately adjacent the zero set pin 17 depressed by the slide 2%. Since now three consecutive zero set pins have been depressed simultaneously the carriage moves three steps when both nought keys are released.

While i have described herein and illustrated in the accompanying drawings what may be considered a typical and particularly useful embodiment of my said invention i wish it to be understood that I do not limit myself to the particular details and dimensions described and illustrated; for obvious modifications will occur to a person skilled in the art.

What I claim as my invention and desire to secure by Letters Patent is:

l. A calculating machine comprising a pin carriage displaceable in a first direction, drive means for displacing said pin carriage to different work positions, said drive means comprising a series of pins mounted on said pin carriage spaced uniformly from one another in said first direction and adjustably displaceable in a direction transverse to said first direction, each of said pins having a front face, a pair of main actuating members for said pins displaceable in said adjustable direction, each of said members having a terminal face, said terminal face of a first member being opposed in each of said work positions to said front face of one of said pins, whereby a displacement of said first main actuating member displaces said last-mentioned pin in said direction of adjustment, the terminal face of the second of said members being further opposed in each of said work positions to the front face of said single pin as well as to that of a second in an adjacent position whereby a displacement of said second main actuating member displaces simultaneously the two last-mentioned pins in the direction of adjustment, a third actuating member for said pins, having a terminal face opposed in each of said work positions to the front face of a third pin adjacent said se ond pin, guiding means engaging said third actuating member to impart to the terminal face of said third actuating member a displaceability in said first direction as well as in said direction of adjustment, drive means connecting each of said main actuating members with said third actuating member, said last named drive means comprising cams and followers resiliently urged against said cams, whereby actuation of one of said main actuating members displaces the terminal face of said third actuating member in said first direction, and whereby simultaneous actuation displaces the terminal face of said third actuating member in said direction of adjustment.

2. A calculating machine comprising a pin carriage displaceable in a first direction, drive means for displacing said pin carriage to different work positions, said drive means comprising a series of pins mounted on said pin carriage spaced uniformly from one another in said first direction and adjustably displaceable in a direction transverse to said first direction, each of said pins having a front face, a pair of main actuating members for said pins displaceable in said adjustable direction, each of said members having a terminal face, said terminal face of a first member being opposed in each of said work positions to said front face of one of said pins, whereby a displacement of said first main actuating member displaces said last-mentioned pin in said direction of adjustment, the terminal face of the second of said members being further opposed in each of said work positions to the front face of said single pin as well as to that of a second pin in an adjacent position whereby a displacement of said second main actuating member displaces simultaneously the two last-mentioned pins in the direction of adjustment, each of said main actuating members having one control face inclined to said first direction and to said direction of adjustment, said control faces of said two main actuating members being opposed to one another, a third actuating member for said pins having a terminal face opposed in each of said work positions to the front face of a third pin adjacent said second pin, said third actuating member comprising a follower fixed to said third actuating member and resiliently engaging said two control faces, and movable guiding means for said third actuating member, said third actuating member being pivotally mounted on said guiding means thereby imparting to the terminal face of said third actuating member a displaceability in said first direction and in said direction of adjustment.

References Cited in the file of this patent UNITED STATES PATENTS 2,042,909 Satukangas June 2, 1936

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