US634446A

US634446A - Type-writer attachment.

Info

Publication number: US634446A
Application number: US69528398A
Authority: US
Inventors: Frederick W Dobbel
Original assignee: Individual
Current assignee: Individual
Priority date: 1898-11-02
Filing date: 1898-11-02
Publication date: 1899-10-10
Anticipated expiration: 1916-10-10

Description

No. 634,446. Patented Oct. "1,1899.

F. W. DOBBEL.

TYPE WRITER ATTACHMENT.

(Application filed Nov. 2, 1898.)

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TYPE-WRITER ATTACHM ENT.

SPECIFICATION forming part of Letters Patent No. 634,446, dated October 10, 1899.

Application filed November 2, 1898. Serial No. 695,283. (No model.)

tachments; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention relates to a certain new and useful type-writer attachment, which 0011- sists in the arrangement of parts and details of construction, as will be hereinafter fully set forth in the drawings and described and pointed out in the specification.

The object of the invention is to provide a simple and inexpensive type or letter indicator, by means of which the operator of the machine may quickly and accurately indicate the type or letter in the line to be corrected, and likewise the relative number or space which said type or letter of the line assumes to the index or gage plate of the type-writer.

In order to comprehend the invention, reference must be had to the accompanying sheet of drawings, forming a part of this application, wherein Figure l is a front view in elevation, showing the attachment applied to the machine, the platen being shown turned up. Fig. 2 is a cross-section end view in elevation on line x :0, Fig. 1. Fig. 3 is an enlarged detail front view of the indicator, stirrup or plate, and band. Fig. at is an end view of same, partly in section. Fig. 5 is an enlarged detail view of the lower fulcrum connection for connecting-rod, partly in section; and Fig. (5 is a top plan view. of same.

In the drawings the letter A is used to indicate the frame proper of the machine, and A the carriage thereof, which carriage is longitudinally movable upon the rod A as is usual in the ordinary Remington type-writer. Below the platen-roll B is located the gage, space, orindex plate B, which plate is mounted upon and supported by the longitudinal rod B These parts are of the usual construction, and form no part of my invention, being illustrated merely to disclose the adaptation of my attachment to a machine of this character.

Preferably from each end of the gage, space,

or index plate B project the brackets or arms 0 O, which support the longitudinal rod C Upon this rod is loosely mounted a block or sleeve a, which is held between the arms of the stirrup a, also loosely mounted upon said rod. This barrel is embraced by the turnedover flanges or cars a of the finger or indicator D, which finger extends upward a distance above the gage, space, or index plate B, so as to be in alinement with the impression of the type or letters upon the last line of the paper held over the platen-roll. Upon the barrel a is sleeved the coiled spring Z7, one end of which bears against the lower end face of the pointer or indicator D and the other end of which bears against the stirrup a and serves to hold the indicator against the face of the gage, space, or index plate B.

Connection between the stirrup or slideblock a and the frame A of the machine is made by means, of the connecting-rod D. One end of this rod is secured to an ear 1), depending from the stirrup or slide-block a, while the opposite end is pivoted to a post b pivotally secured on the plate D which is rigidly fastened to the frame A, whereby the rod D is capable of both a horizontal and vertical pivotal movement, which permits easy movement thereof when the platen is turned up and down. The connecting-rod D thus stands at an incline, the lower end being fulcrumed to the machine-frame below the stirrup or slide-block a. Being thus connected it is obvious that as the carriage A is lowered the slide-block ,or stirrup a is moved upon the rod 0 so as to carry the finger or indicator D away from or to one side of the written letter or type to be corrected, thus giving clearance for the type when thrown upward by the operator, while when the carriage is lifted or thrown upward the slideblock or stirrup will be moved inward or in such direction as will place the finger or indicator in line with letter or type'corrected or to be corrected. This movement of the slide-block or stirrup is obtained by fulcrumin g the connecting-rod to the frame of the machine, whereby the rod is permitted to follow the arc of the circle described by the carriage as raised and lowered.

The rod 0 being rigidly secured to the carriage of the machine is carried therewith duringthe longitudinal movement of the carriage back and forth over the frame without disturbing the position of the stirrup or block a, which is loosely mounted thereon, or of the finger or indicator held by said block. Consequently said finger or indicator and stirrup or block,through the medium of its connection with the machine-frame, may be said to be rigid relative to the longitudinal movement of the carriage and rod G The position of the finger or indicator and its stirrup or block is, when the platen is turned up, in line with the center of the machine-frame, and this position is not disturbed, except during the raising and lowering of the carriage, when the parts have a slight longitudinal movement, as above described. However, this movementis independent of the longitudinal movement of the carriage. Hence the position of said parts may be said to be normally a fixed one.

The upper or projecting end portion d of the finger or indicator is cut awayor reduced, so that one edge will fall in line with the numoral or notch of the gage, index, or space plate indicative of the type or letter struck, or when the carriage has been moved for a correction to be made the said edge will be in exact line with the numeral or notch corresponding thereto. By thus reducing the width or cutting away the upper portion of the finger or indicator the numeral or notch of the gage, index, or space plate is not covered or hidden from view. The shoulder d left by such reduction or cut-away portion is flanged or bent over, so as to lie against the face of the gage, index, or space plate.

Inasmuch as the indicator or fingeris held in place or against the gage, index, or space plate by means of the pressure of the spring surrounding the barrel and bearing thereagainst the same maybe said to be springpressed. By making the finger or indicator spring-pressed the same is permitted to give or move outward as carried over obstructions, such as dirt or irregularities in the surface of the gage, index, or space plate or to different thicknesses of paper carried by the platenroll. This is of importance, for unless provision be made to compensate for such irregularities the resistance offered by same to the finger or indicator during the longitudinal movement of the carriage would tend to damage the said finger or indicator. It will thus be observed that the finger or indicator not only points to the letter or type impression upon the paper, but also denotes upon the gage, index, or space plate the numeral or notch which corresponds thereto.

Vhile theinvention is illustrated as being applied to what is known as a Remington type-writer machine, it is equally as well adapted for use in connection with other machines.

Having thus described my invention, what I claim as new, and desire to secure protection in by Letters Patent, is

l. The combination with a longitudinallymovable carriage, of a finger or indicator mounted thereon and fixed relatively to the longitudinal movement of the carriage, and of a direct connection between the indicator or finger and the frame of the machine and adapted to move the finger longitudinally of the platen when the carriage is lowered.

2. The combination with a longitudinally and vertically movable carriage, of a finger or indicator fixed relatively to the longitudinal movement of the carriage but longitudinally movable as the carriage is raised and lowered, and of a direct connection between the indicator or finger and the frame of the machine.

3. The combination with a longitudinallymovable carriage, of a spring-pressed finger or indicator mounted thereon and fixed relatively to the longitudinal movement of the carriage, [and of a direct connection between the indicator or finger and the frame of the machine and adapted to move the finger longitudinally of the platen when the carriage is lowered.

4. The combination with a longitudinallymovable carriage, of a longitudinal ro'd carried thereby, a block orstirrup loosely mounted on said rod, an indicator or finger held by said block or stirrup, andof connection attached to said block or stirrup and to the frame of the machine and adapted to move the finger longitudinally of the platen when the carriage is lowered. Y

5. The combination with a longitudinallymovable carriage, of a longitudinal rod carried thereby, a block or stirrup loosely mounted thereon, a sleeve loosely mounted upon the rod and held by the block or stirrup, an indicator or finger secured to the sleeve and engaged by a spring attached thereto, and of connection between the block or stirrup and' the frame of the machine.

6. The combination with a movable carriage, of a gage, space or index plate, an indicator mounted on said carriage, having a finger to denote the letter or type impression and a portion to denote the numberor notch upon the gage, index or space plate corresponding to the letter or type impression, and a connection between the indicator and the machine-frame to hold the former immovable relatively to the movement of the carriage, substantially as described.

7. The combination with the movable carriage, of the finger or indicator rigidly held against longitudinal movement during the travel of the carriage, a connecting-rod attached to the finger or indicator, and of a swivel or fulcrumed connection between the one end of the said rod and the frame of the machine.

8. The combination with the movable car- IIG riage, 0f the longitudinal rod carried thereby, a spring-pressed indicator or finger loosely October, 1898. monntedthereon, a rod attached to said finger 0r indicator, and of a swivel or fnlcrumed FREDERICK DOIDBEL' connection between said rod and the frame of WVitnesses: the machine. N. A. AOKER,

In testimony whereof I affix my signature, F. E. MONTEVERDE.

in presence of two witnesses, this 24th day of