US769614A

US769614A - Repetition means for calculating-machines.

Info

Publication number: US769614A
Application number: US17566603A
Authority: US
Inventors: Kurt Kelling
Original assignee: Grimme Natalis & Co Commanditgesellschaft Auf Aktien
Current assignee: GRIMME NATALIS and CO COMMANDITGESELLSCHAFT AUF AKTIEN; Grimme Natalis & Co Commanditgesellschaft Auf Aktien
Priority date: 1903-10-03
Filing date: 1903-10-03
Publication date: 1904-09-06
Anticipated expiration: 1921-09-06

Description

No. 769,614. PATENTBD SEPT. 6, 1904. K. KELLING. REPETITION MEANS FOR CALCULATING MACHINES.

APPLICATION FILED OCT. 3, 1908.

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No. 769,614. PATENTED SEPT. 6, 1904. K. KELLING. REPETITION MEANS FOR CALCULATING MACHINES. APPLICATION FILED OCT. 2, 1903. N0 MODEL. 2 snms41mm 2.

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UNITED STATES Patented September 6, 19u4.

PATENT @EErcE.

KURT KELLING, OF DRESDEN, GERMANY, ASSIGNOR TO GRIMA IE, NATALIS & (10., COMMANDITGESELLSCHAFT AUF AKTIEN, OF BRAUNSCHWEIG,

GERMANY.

REPETITION MEANS FOR CALCULATING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 769,614, dated September 6, 1904.

Application filed October 3, 1903. Serial No. 175,666. (No model.) i

To (all whomzlt may concern.-

Be it known that I, KURT KELLING, engineer, a subject of the King of Saxony, residing at 2 Nordstrasse, Dresden, Kingdom of Saxony,

5 Empire of Germany, have invented certain new and useful Improvements in Repetition Means for Calculating-Machines, of which the following is a specification.

1t frequently happens in calculating-ma- IO chines that a given group of figuressuch, for instance, as 1 13has to be inserted in the calculation several times in succession by depressing the respective keys 1 4 3 and frequently also with an altered decimal point 15 for instance, 1&3 1x13 or 1 130 or 14300, &c.

Now this invention has for its object a means for avoiding repeated adjustments in the cases mentioned, which means consist in a second keyboard, which is a movable one, being employed in addition to the ordinary key arrangement in such a way that repeated adjustments of a key while retaining the figuregroup may be executed by the movement of In other words, the separate keys only require to be once adjusted. Such an arrangement also affords the advantage that repetitions need not take place immediately in succession, but-that other groups of 3 figures may be adjusted or inserted between the separate similar groups, and yet the repeated group may be caused to appear by mechanical means again at any desired moment.

In the accompanying drawings, Figure 1 is a plan view, Fig. 2 a side view, and Fig. 3 a

front view, of the machine. Fig. A is a sectional top plan view of a portion of the upper keyboard, and Fig. 5 is a transverse sectional elevation of the same, these tWo figures being 4 intended particularly to illustrate a means for locking the upper keys down.

As shown in Figs. 1 and 2, a second keyboard, Z), is arranged in addition to the actual key mechanism a, which keyboard 6 may be so depressed onto the first, a, that the keys 'in it which are depressed adjust the keys of the mechanism a lying beneath it, While the other keys of the latter remain unaffected. lf,there fore, in the key mechanism 7) a frequently-recurring group of figures has been adjusted by 5 depressing the respective keys, by simply depressing the upper keyboard onto the under one the respective group of figures may be introduced as frequently as desired and at any suitable time into the calculation. Any of the known arrangements adapted for the purpose may be employed for securing the keys depressed in the movable keyboard and for preventing the depression of several keys of one row of values, the depressed keys being again released by releasing the locking mechanism after their use is ended. The mounting of the movable keyboard 5 may be any suitable one, only care must be taken that when in a nonworking position it does not impede the han- 5 dling of the fixed keyboard a. Thekeyboard 7) may for this purpose, as indicated in Fig. 1,

be adapted to be moved on hinges and folded up or displaced upward transversely to its plane or even be displaced laterally. The 7 last-named arrangement, by which the keyboard Z), in addition to its mobility, has also the power of lateral displacement relative to the keys of the fixed board a, also affords the following advantage: If a given group of figures for instance, the already-mentioned 143is to be inserted in the calculation several times, but with a different decimal valuesuch as arises, for instance, in using so-called adding-machines for substracting and dividingthe movable keyboard 5 is so arranged as to be displaceable in the direction of the decadic-value points. Then by means of the movable keyboard, according to the above example, the following values may be 5 successively printed:

143 000, &c. 9

As the figure values, or rather the keys incorporating them, are arranged in rows running at right angles to the direction of writing, the above-mentioned operation means the multiple displacement of the respective group of figures 14:3 to the right.

In the form of construction shown in the drawings the keyboard 6 is ad justabl y mounted on a bar 8 and is moved by means of wheels r on a bar a and is usually held in a raised position by means of springs located, for instance, on guide-pins f. At the rear part of this keyboard-carriage a pressure-yoke d is located, which is formed in front as a handle it and which rests approximately in the middle on pins 2, mounted on the keyboard. If the handle it be depressed, the yoke 62 depresses the keyboard I) by means of the pins .2. The keys of the board a, which are situated under the depressed keys of the board 6, are then adjusted.

In Figs. 4 and 5 I show a means for holding the upper keys depressed during the repeating operation and in the latter figure show one of the keys as locked down. Under each row of keys I arrange a locking device, as X, which is in the nature of a spring-actuated slide. I will now describe in detail the structure of one of the sliding locking clevices X and its manner of cooperating with a row of keys, such description applying to the other rows of keys and respective sliding locking devices. In said two Figs. 4 and 5 the upper keys therein shown are denoted by b. The lower ends of these keys are beveled, as at On the forward side of each keyis a notch '0, while on the opposite side and below the notch oisanotcho. TheslideXhasarowofnotches registering with the respective keys in a cooperating row, the forward and rear walls a and a, respectively, of the notches beingbeveled to enter the respective notches '0 and c in the several keys. In Fig. 5 I have represented three keys, the intermediate one being depressed in opposition to its elevating-spring. As said key is depressed the beveled face 3 thereof rides against the forward wall a of a cooperating' notch to move the slide X forward in opposition to its spring, the motion being continued until the notch 21 is in line with the wall n, at which time said wall or locking part n is sprung into the notch 'v of the depressed key to lock the same down. When the key thus depressed moves the slide X forward, the locking portions 10 thereof are moved intothe notches o to prevent the depression of the other keys in the group. Upon the forward side of the carriage t is mounted a rail X, having depending pins for engaging the several slides X and also provided with a forwardly-extending knob X By pulling the rail X forward through the medium of the knob X the slide X will be moved in a corresponding direction to release a depressed key, the locking portion a during such motion being carried out of the notch 41. This forward and key-releasing movement of the slide X is readily permitted by reason of the fact that the notches w are deeper than the notches o.

In the above-mentioned calculating operation, for which this improved arrangement is particularly applicable, divisions are effected by continued subtraction, and for this the keyboard 6 must always be displaced to the right to the extent of a decadic value. In order that the rows of keys of the upper and under keyboards may lie correctly oneabove the other, notches 6 maybe provided on the front side of the apparatus, in which notches e corresponding projections of the carriage engage. Fig. 2 shows an elevation of these notches e in such an arrangement that by them when the handle it is simply depressed an automatic moving forward of the keyboard or carriage to the extent of a vertical row of keys is operated. For this object each two adjacent notches are connected by an inclined slot g, and these inclined slots are so arranged that when the yoke cl is elevated the guide-pins d, Fig. 1, escape from the notches while when the yoke is depressed the pins enter the notches, and thus are guided over into the adjacent slots 6. As these are the distance of two adjoining rows of keys apart, the displaceable keyboard is moved forward to the extent of this distance apart-that is to say, to the next row of keysin the manner hereinbefore explained.

It will be understood from the foregoing that each notch c has a branch 9. When, therefore, the operator presses down the keyboard and simultaneously presses the same toward the left, then the pin will be caused to traverse the left side wall of a notch 6. Should the operator, however, in thrusting the keyboard downward press the same toward the right, then the pin will be caused to travel along the right side of said notch and will en- 'ter the branch 9 of said notch and from the latter will pass into an adjacent notch e.

I declare that what I claim is 1. A calculating-machine having two cooperative keyboards, each provided with a series of rows of keys. and one of said keyboards being laterally movable with respect to the other keyboard and its keys being adapted to operate those of the companion keyboard.

2. A calculating-machine having a keyboard provided with keys bearing numerals combined with a second keyboard provided with numeral-bearing keys, the numerals of which are duplicates of those of said other 4 keys and said second keyboard being depressible and laterally movable relatively to the other keyboard.

3. A calculating machine having a keyboard provided with keys, combined with a traveling depressible carriage having akeyboard the keys of which are duplicates of said other keys, and mechanism for causing positively the lateral feed of the carriage.

4. A calculating machine having a keyboard provided with keys bearing numerals, a hinged carriage having a keyboard the keys or which bear numerals the duplicates of those on the other keys, and means for yieldingly holding the second keyboard in an elevated position.

5. A calculating-machine having a keyboard, a hinged carriage having a keyboard the keys of which are duplicates of the other keys, means for yieldingly holding the second keyboard in an elevated position, a handle connected with the carriage, and means cooperative with the handle for causing the lateral motion of the carriage.

6. A calculating-machine having a keyboard provided with keys, combined with a carriage having a keyboard the keys of which are duplicates of the other keys, the carriage being arranged for lateral travel, a yoke connected with the carriage, a handle connected with the yoke, notches to receive projections upon the handles, the notches being connected by inclined slots to eflect the lateral movement of the carriage, and springs for holding the carriage in an elevated position.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

KURT KELLING.

Vitnesses:

FRANZ PAUL UHLIG, AUGUST MAX FENKER.