US763528A - Universal-bar mechanism for type-writers or like machines. - Google Patents

Description

PATENTED JUNE 28, 1904 F. X. WAGNER. UNIVERSAL BAR MECHANISM FOR TYPE WRITERS 0R LIKE MACHINES.

N0 MODEL.

APPLICATION FILED APR. 28, 1903.

- HHIHI INVENTOR ATTORNEYS .No. 763,528. 7 PATENTED JUNE 28, 1904. P. x. WAGNER.

UNIVERSAL BAR MEGHANISM FOR TYPE WRITERS 0R LIKE MACHINES.

APPLICATION FILED APR. 28, 1903. N0 MODEL. 6 SHEETS-SHEET 2.

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WI'TNESSES: INVENTOR f AWQM awn B 2 214 0% I ATTORNEYS No. 763,528. PATENTED JUNE 28, 1904. F. X. WAGNER.

' UNIVERSALBAR MECHANISM-FOR TYPE WRITERS 0R LIKE MACHINES.

APPLICATION FILED APR. 2a, 1903. N0 MODEL. 5 snnms-snnnw a.

WITNESSES INVE? /,Z;/ 0% ATTORNEYS PATENTED JUNE 28, 1904.

F. X. WAGNER. UNIVERSAL BAR MECHANISM FOR TYPE WRITERS 0R LIKE MACHINES.

APPLICATION FILED APR. 28, 1903.

5 SHEETS-SHEBT 4.

N0 MODEL.

INVENTDR WITNESSES 2 ATTORNEYS 1m: wsms PETERS co mom-Lima. WASHMBTON, n.

PATENTED JUNE 28, 1904.

- F. X. WAGNER. UNIVERSAL BAR MECHANISM FOR TYPE WRITERS 0R LIKE MACHINES.

APPLIGATION FILED APR. 28, 1903.

5 SHEETSSHEET 5.

NO MODEL.

4 INVENTOR v f v WITNESSES:

ATTORNEYS UNITED STATES Patented June 28, 1904.

PATENT OEEICE.

FRANZ X. WAGNER, OF NEW YORK, N. Y., ASSIGNOR TO UNDERVVOOD TYPEVVRITER COMPANY, OF NElV YORK, N. Y., A CORPORATION OF NEWV JERSEY.

UNIVERSAL-BARMECHANISM FOR TYPE-WRITERS 0R LIKE MACHINES.

SPECIFICATION forming part of Letters Patent No. 763,528, dated June 28, 1904.

Application filed April 28, 1903.

To all whom it may concern:

Be it known that I, FRANZ X. WAGNER, a citizen of the United States, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Universal Bar Mechanism for Type-Writers or Like Machines, of which the following is a specification.

My invention relates to type-writers, and

has particular reference to anovel construction of the universal-bar mechanism and its operation controlled by the key-levers of the machine and its connections for operating the escapement.

I will now describe a type-writer embodying my improvements and will then point out the novel features of my invention in the appended claims.

Reference is to be had to the accompanying drawings, in which- Figure 1 is a sectional elevation of a typewriter, taken from front to rear at about the center of the machine. Fig. 2 is a sectional elevation taken substantially on line2 f Fig. 1. Fig. 3 is a plan with parts in section approximately in the plane indicated by the line 3-3 in Fig. 1. Fig. 4 is a rear view of the machine with parts omitted and some parts in section on line 4 i of Fig. 1. Fig. 5 is a detail rear elevation of the universal bar and the parts directly connected therewith, and Fig. 6 is a plan of the, same parts with portions broken away.

As shown best in Fig. 1, I mount upon the frame A of the machine key-levers, such as B,.having keys, such as B, and pivoted at B Each lever is connected with an elbow-lever O, fulcrumed at O, the connection, as indicated at O being in the nature of a pin-andslot connection. The upper end of each elbow-lever is operatively connected with the impression mechanism. For instance, a typebar D is provided for each elbow-lever, such type-bar being fulcrumed at D upon the segment A and having a pin-and-slot connection Serial No. 154,696. (No model.)

D with the corresponding elbow-lever O. So far the construction is substantially the one usually employed in the Underwood typewriter. v

Each of the elbow-levers is provided with a rearwardly-extending toe O arranged adjacent to the pivot O and adapted to engage the bottom surface of a universal bar E, which is carried by two arms E, connected at their rear ends by a sleeve E, which is pivotally mounted upon a stationary rod 0. By reference to Figs. 1 and 3, and particularly to the latter, it will be seen that the toes O of the several elbow-levers Ovary in length, the toes being shortest at the center and increasing in length toward both sides. The pin-andslot connections C also vary, as indicated in Fig. 3, their distance from the pivot O increasing from the center of the machine toward-the sides. This variation in the position of the connection between the key-lever and the elbow-lever is notin itself here claimed as my invention. The universal bar is normally kept down by means of a spring H, which at one end is attached to a bracketA and at the other end is engaged with a pressure-lever Gr, pivoted at G and engaging an arm E, which is rigidly secured to the sleeve E The upper arm of the pressure-lever Gr may be provided with a series of notches G so that the action of the spring may be graduated. The end of the arm F is so formed that the distance between the pivot and the point of contact of the pressure-lever G with the arm F will increase as the arm F moves up, thereby gradually increasing the effect of the springH. The arms E have upward extensions E, connected at the top by a horizontal cross-bar E, which carries a frame E which may be termed a dog-carrier.

Upon the frame E are mounted the fixed dog K and the loose dog K. The latter is normally in engagement with the rack N of the carriage N and is pivotall y supported upon a pin L, which forms part of or is secured to the frame E The loose dog K is thus capable of moving up and down, and to normally keep said dog in its upper position I provide a spring K attached at one end to the frame E and at the other end to an arm K rigidly connected with the deg K. The said dog is secured to adog-arm K, which not only swings on the pivot L, but is further capable of a longitudinal sliding movement on the said pin to the extent of a letter-space, this movement being governed by the length of a slot K through which the said pin projects. Preferably the dog-arm K consists of two sections adjustably connected, as indicated at K so that the normal position of the dog K may be brought into proper relation to the normal position of the deg K. It will be understood that the depression of a key-lever causes the universal bar to move upward and swings the dog-carrier E to the rear, so as to bring the fixed deg K in to engagement with the carriagerack N and to release the loose deg K from said rack. As soon as released the loose dog is moved lengthwise of the rack by its spring K, a projection E of the dog-carrier limiting the upward movement of said dog. When the type-lever is released, the universal bar is returned to its first position by the spring H, and the loose dog is again brought into engagement with the carriage rack and the spring which propels the carriage causes the latter to be fed, .the spring K being much weaker than the carriage-driving spring. In this manner the feed of the carriage is obtained. INhen the carriage is moved by hand toward the right-that is, toward left when looking at the machine from the rear, as in Fig. 4:the spring K will yield to allow the loose dog to slip over the teeth of the rack N.

In many machines a tabulating device is employed, which comprises mechanism for temporarily releasing the carriage from the feeddog. This tabulating device may be of the well -known character in which a rock-shaft M, extending lengthwise of the carriage,is employed, the said rock-shaft being provided with an arm M, which projects over a toe I of the dog-arm K. It will be understood that when the tabulator is operated the arm M swings downward, so as to withdraw the loose dog K from engagement with the carriage-rack N, and thus release the carriage.

I desire to call particular attention to the varying length of the toes C, as shown best in Fig. 3. It will be seen that the toes are progressively longer as the distance between the pivot O and the pin-and-slot connection C increases. In this manner I am enabled to secure an absolutely uniform movement of the universal bar whichever key lever is depressed notwithstanding the varying distance between the pivot C and the pin-and-slot connection C Another feature which is of importance in my invention is the construction of the universal bar and the arms E and their connecting-bar E as a rigid unitary member, which in practice may be cast in one piece together with the sleeve E which connects the arms E at their rear ends.

By the improved construction hereinbefore described a very light touch is obtained and at the same time great simplicity and accessibility of the main parts of the device.

The drawings show a ribbon-guide and a ribbon-feed mechanism which I have not further described herein, as such parts form the subject-matter of another application for patent filed by me on September 22, 1903, Serial No. 174,163.

What I claim as new, and desire to secure by Letters Patent, is

1. In a type-writer or like machine, the combination with key-levers, type-bars, and elbowlevers connecting the key-levers with the typebars, the point of connection of the elbow-levers with the corresponding key-levers varying for the different key-levers, and the said elbow-levers being provided with toes which increase in length as the distance increases between the pivot of the elbow-levers and their point of connection with the corresponding key-levers, of a universal bar arranged to be engaged by the said toes, and escapement mechanism controlled by the movement of said universal bar.

2. In a type-writer or other machine, the combination with key-levers, type-bars, an intermediate mechanism for transmitting motion from the key-levers to the type-bars, the connection of said intermediate mechanism with the key-levers varying with diiferent key-levers, and each of these intermediate mechanisms being provided with a toe, the length of these toes varying correspondingly to the variation in the connection of the keylevers with said intermediate mechanism, of a universal bar adapted to be engaged by said toes, and escapement mechanism controlled by the movement of the universal bar.

3. In a type-writer or other machine, the combination with key-levers, type-bars, and elbow-levers connecting said key-levers and type-bars and provided with rcarwardly-extending toes, of a universal-bar frame adapted to be engaged by said toes, an escapement mechanism, one member of which is carried by said frame directly, and a pressure-lever engaging said frame.

4. In a type-writer or other machine, keylevers and a universal-bar frame both pivoted at the rear of the machine, type-bars, elbowlevers connecting said key-levers with said type-bars and provided with toes to engage the universal-bar frame, escapement mechanism controlled by the movement of said frame, and a pressure-lever arranged to engage said frame'and disposed forwardly of the pivot of such frame but rearwardly of the elbow-lever pivots.

tirely separate from said connection and engaging the universal-bar frame.

6. In a type-writer or other machine, a frame mounted to oscillate about a horizontal axis, an escapement member carried by said frame and movable thereon toward and from the axis of oscillation, a carriage provided with a mating escapement member, a rockshaft the axis of which is parallel to that about which said first-named escapement member oscillates with its carrying-frame, an arm on the rock-shaft for moving the escapement member on said frame out of engagement with the companion member on the carriage, so as to release the carriage, without moving said frame, and key-operated mechanism for swinging said frame.

7. In a type-writer or other machine, the combination, with key mechanism, of a universal-bar frame operated by said mechanism, escapement mechanism, one member of which is carried by said frame, a pressurelever having a shifting engagement with said frame, and a spring adjustably connected with said lever.

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

FRANZ X. WAGNER.

Witnesses:

JOHN LOTKA, EUGENE EBLE.

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