US390769A

US390769A - Device for operating a set of levers

Info

Publication number: US390769A
Authority: US
Publication date: 1888-10-09
Anticipated expiration: 1905-10-09

Description

(No Model.) 3 Sheets-Sheet 1. H. D. GANSE.

DEVICE FOR OPERATING A SET OF LBVERS.

No. 390,769. Patented Oct. 9, 1888.

N PETERS, mmum h". Wuhingtou. n.c.

(No Model.) 3 SheetsSheet 2.

H. D. GANSEQ DEVICE FOR OPERATING A SET OF LEVERS. I No. 390,769. Patented Oct. 9, 1888.

Nv PETERS. Films-Lithograph". Wuhingion. D, C.

(No Model.) 8 3 Sheets-Sheet 3. H. D. GANSE.

DEVICE FOR OPERATING A SET OF LE-VERS.

No. 390,769. Patented Oct. 9, 1888.

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DEVECE FOR OPERATING A SET OF LEVERS.

SPECIFICATION forming part of Letters Patent No. 390,769, dated October 9, 1888.

Application filed August 6, 1883. Serial No. 102,960. (No model.)

To aZZ whom it may concern.-

Be it known that I, HERVEY D. Gansn, of St. Louis, Missouri, have made a new and useful Improvement in Devices for Operating a Set of Levers, of which the following is a full, clear, and exact description, reference being had to the annexed drawings, making part of this specification, in which- Figure 1 is a side elevation of the device; Fig. 2, a plan; Fig. 3, a cross-section, upon an enlarged scale, at the line 3 3 of Fig. 1; Fig. 4, aside elevation, upon an enlarged-scale, showing the rear end of the slides; Fig. 5, a top view of the rear end of the slides; Figs. 6, 7, 8, 9, views illustrating the movements of the slides and tumblers, Figs. 6 and 8 being side views and Figs. 7 and 9 being top views; Fig. 10, a detail, being a sectional view in perspective, showing the rear ends of the slides; and Fig. 11, a diagram used to illustrate the relative movements of the slides.

Thesame letters of reference denote the same parts.

This invention consists, mainly, of a set of operating-levers, a set of movable slides, and a set of tumblers. The slides in number correspond to the operating-levers, and the movements of the slides are responsive to the movements, respectively, of the operating-levers. The tumblers in number correspond to the levers operated upon, and the movements of the levers operated upon are dependent upon the movements of the tumblers respectively corresponding to the levers.

In the drawings, A represents the device.

B 3 B B" B 13 represent the operating-levers.

G 0 C 0 C" 0 represent the'slides.

D D", &c., represent the tumblers.

F. F), &c., represent the levers operated upon.

The operating-levers B, Sac, can be considered and hereinafter will be styled keys, the operators hand being placed on the forward ends, '1) b, ofthe keys, as on the keyboard of a piano, causing the ends b b to be depressed, as desired, and, through the mechanism hereinafter described, producing the desired movements of the levers E, do. The keys B, 620., turn upon a suitable fulcrum.

the base of Springs 1), &e., act to recover the keys when the ends I) are released by the operator. The keys E, 8nd, are connected with the slides 0, 8m, respectively by means of thelevers F F &c. These last-named lovers are of the bell-crank order, are pivoted at f in the fixed bars a a, have a sliding connection, f, with the keys B, 850., and. at f" have a pivoted connection with the slides C, etc. The depression of any one of the keys B, 850., therefore causes its corresponding slide 0, 850., to move endwise in a direction at rightangles to the longitudinal axis of the key. The slides in the edge opposite to the tumbler-rods are notched, as seen more distinctly in Figs. 4, 5,

6, 7,8, and 9. The object of these notches is as follows: For each of the levers to be moved there is a corresponding tumbler, and the desired movements of the levers E, 850., are effected by previously moving the tumblers. The movements of the tumblers are accomplished by means of the notches referred to, the notches providing spaces into which the tumblers can drop. It is only necessary therefore to control the dropping of the tumblers, so that they shall be dropped in the proper order, as desired. This is determined by the location of the notches in the slides. I

The distribution of the notches along the several slides is made upon the following principle: In order to allow any tumbler to fall six notches, (there being six slides in the present ease,) one in each slide must beinline beneath the tumbler. As many keys as are depressed to allow that tumbler to fall so many notches must, before the depression of the keys, have stood,not beneath the tumbler, but a little to the left thereof, ready to be brought to their places beneath the tumbler, when the keys shall be depressed and the slides moved by them to the right; but as many keys as are not depressed for the production of the movements of the tumbler-rods so many notches are already standing under the tumbler waiting to have those others just named brought into line with them. For eX- ample, the letter A (the present invention being here illustrated as anattachment to the type-writer) is commanded in this device by the depression of the single key marked A in Fig. 2 of the drawings. Accordingly, be-

neath the Atumbler (meaning the tumbler which is connected with and effects the movement of that one of the levers E, &c., mark ing the letter A in the type-writer) all the five slides that respond to the other key s, 13 B B B B, must have their notches standing ready, while the notch of the slide of that one A-key stands out of line to the left.

Fig. 11 of the drawings is a diagram em-' ployed to illustrate the relative movements of the slides. It may be considered as representing the slides in plan view, the place of each tumbler being indicated by a cross-line, and the slides are shown as they stand when no key is depressed. In the diagram the fifth line of notches, counting from the left, belongs to the letter A, as above described. Next, on the right, come the notches of the numeral 3, whose lever comes in that order in the Remington type-writer, to which this form of de vice is adapted. The numeral 3 is commanded in my system, to be hereinafter described, by the three keys on the left of the key-board. Accordingly the three slides which respond to those keys are seen to have notches to the left of the line of the tumbler. Next come the notches of the letter Z, which letter is com manded by the two keys marked in Fig. 2 I and U. The notches of the corresponding slides, accordingly, are seen to stand to the left of the Ztnmbler. The remainder of Fig. 11 shows in the different combinations the two classes of notches that have now been described-namely, those which stand in the line of the tumbler ready to receive it, and those which must be moved up into line by the depression of the keysB B2 850. The endwisc movement of the slides is in the present case but a small fraction of an inch. That, there fore, is the distance to the left which the outof-line notches must stand in order that the depression of the proper keys may bring them into line.

It will be seen that since each notch, which so long as its key is untouched stands in line under a given tumbler, itself moves to the right when its key is touched, that movement breaks up the line of notches for that tumbler and prevents it from dropping. For, example, the letter B in this device is commanded by the key marked A, in combination with the next key to the right of it. An examination of the A-row of notches in the diagram will show that, although the combination of keys used in producing 13 will bring the one A-notch up into place for producing A, that combination will at the same time draw the notch on the next slide to the right and out of place, so that while the B-tumbler can fall the A-tumbler cannot. In this way throughout the system the combination that produces any one line of notches under its proper tumbler breaks up every other.

The system of combinations used in this device is found very convenient; but I do not limit myself to it. It is shown in full in the diagram. Its main features are as follows:

The key marked B, Fig. 2, is not used at all for the production of letters, but comes into notice for producing punctuationinarks and numerals. The remaining five keys produce the letters, as follows: The keys marked A E I O U produce, each by itself, the vowels for which they are markcdthat is, the key marked A produces A,the key marked 1] pro duccs E, and so on. For the production of the consonants, keys are combined according to the following plan: any vowelkcy that is simultaneously depressed with the key next to the right of it will produce the consonant which in the alphabet stands next after that vowel, the A-key with the next producing the letter B, the E-key with the next producing F, the I-key with the next producing J, and so on. In making the addition to the U-kcy, since there is none beyond it, the five lettered keys are used in a cirele-that is, the operator adds to the U-key the A-kcy, going round from the top of the keyboard to the bottom. Thus the U-key, with the A-kcy, produces V. By extension of this system any vowel-key, in combination with the two keys next aboveit, produces the second letter after that vowel. S0 A,with two additional keys, produces C; E, with two additional keys, G,and so on. A,with three additional keys, produces H, and so on. The tumblers may be variously shaped; but for the present purpose that form shown is desirable, the tumbler being in the form of a leaf, (1, which is journaled at d (l in the fixed bars a. ct'in the frame of the machine. The leaves I) b,thcrcforc,in their movements swing to and fro, as indicated by the broken lines in Fig. 8. The levers E, tie, to be moved are connected with the tumblers D, 850., the levers E, &c., being in the present case virtually extensions of thcjonrnals of the tumblers.

G represents a slide adapted to be moved endwise in the machine. It is arranged alongside, and, if desired, between the slides E, &c., substantially as shown. The slide G- is provided with a flange, y. This flange, as shown in Figs. 3 and 10, constitutes a shoulder against which the slides E, 8.50., in their forward movements press. The depression, therefore, of any one of the keys B, 850., operates not only to move its corresponding slides O, 800., but also to move the slide G in the same direction. The slide G, as shown in Figs. 5, 7 ,and 9, is notched at g g, &c. These notehesg, &c., are so distributed in the edge of the slide G as to be beneath the tumblers D, &c.,whcn the latter are allowed to drop, by bringing the notches in the slides C, &c., into coincidence, as heretofore described. The tumbler, therefore, drops not only into the notch in the slides C, &c., but also into the coincident notch in the slide G. The function of the slides C, &c., is to provide a space into which the tumbler can drop. The function of the slide G- is to positively move the tumbler after it has dropped into one of the notches r/-that is to say, by continuing to depress the key B, 820., after the tumbler has dropped into the notch,

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the slide G is forced farther along in the same direction, which movement of the slide G in turn causes the tumbler to be rotated in its bearings, and in such movement to cause the correspondinglever E to be moved. As soon as the operator releases the keys B, &c.,which have been depressed, the springs l), &0., operate through the keys B, &c., and the bellcrank levers F, 850., to move the slides O, 850., endwise backward intotheiroriginal positions. A spring, 9 Figs. 1, 2, and 4, operates to withdraw the slide G into its original position. The return movements of the slides G, &c., operate to lift the tumblers D, &c., into their original positions-that is, the lower edges of the leaves b are lifted out of the notches c in the slides G, &0., and rest upon the space 0 of the slides between the notches c, as shown in Figs. 4, 6, and 8. On depressing the keys B, &c., again for the purpose of operating the tumblers and levers E, &c., the slides G, 850., and G are moved forward again, and so on with every depression of the keys B, 850.

I do not wish to be confined to the special form of notch 0 shown; but whatever form is employed the notch and tumbler should be so made and so relatively shaped and combined as to enable the tumbler to enter the notch as a slide moves in one direction, and cause it to be expelled from the notch by the action of the slide as the slide is moved in the opposite direction.

The movements of the lever B, &c., can be communicated to mechanisms of various descriptions, for I do not desire to be confined in using the present device to any one form of mechanism. The device, however, is especially adapted to a type writer, as by means of it the many levers of a type-writer mechanism can be operated with comparatively few keys. The plates H H serve to confine the tumblers in their bearings and prevent them from being accidentally misplaced.

I claim- 1. The combination of the notched slides and the tumblers, said tumblers constructed and arranged substantially as described, so that they enter the-notches when the slides are moved in one direction, and said slides when moved in the opposite direction act to restore the tumblers to their original positions.

2. In combination, the apertured and movable slides O, &0., having notches arranged as described, so that each change of position of the slides shall present a different notched opening across the entire series of slides, subtumblers D, 850., and the slide G, substantially as described.

6. The combination of the keys B, &0., bell-crank levers F, 8m, notched slides O, &c., tumblers D, 8m, the levers E, &c., and the notched slide G, substantially as described.

7. The combination of the keys B, &c., the bell-crank levers F, Ste, springs 12, 850., the notched slides O, &c., the tumblers D, &c., the notched slide G, and the spring 9, substantially as described.

8. The combination of the keys B B 820., the notched slides G O, 850., and the means, substantially as described, for connecting the keys with the slides, and the tumblers D D*, &c., the movements of the notched slides answering the movements of the keys, for the purpose described.

9. The combination of the slides G 0 &0., and G, the tumblers D D &c., and thelevers E E &c., substantially as described.

HERVEY D. GANSE.

Vitnesses:

O. D. MOODY, S. E. LOGAN.