US550549A - Type-writing machine - Google Patents

Description

(No Mod m Q {2 sheetssheet 1.

,0; WHEELER, J1. TYPE WRITING MAUHINE N0:.55O,549 I Patented Nov. 26,1895.

(No Model.) 2 Sheets-Sheet 2.

'OIWHEELER, Jru- I vTYPE WRITING MACHINE. v No. 550,549. Pa ten,ted NOv-.-Z6, 1895.

ANDREW B.GRAHAMJHUN'UI'NQWASHINGTDNJ c UNITED STATES ,cYEENUs WHEELER, JR.,

PATENT OFFICE.

OF AUBURN, NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 550,549, dated November 26, 1895.

Application filed, July 20, 1894- Serial N0, 518,091. (No model.)

To all whom it may concern.-

Be it known that I, OYRENUs WHEELER, Jr., a citizen of the United States, residing in the city of Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Type-Writers, of which the following is a specification, reference being had to the accompanying drawings.

The invention relates to that class of typewriters in which an impression or paper-carrying cylinder or roller mounted in a traveling frame or carriage is employed, such frame being automatically moved forward with a step-by-step motion as the keys are operated and moved backward by the operator whenever a new line is to be commenced.

The invention consists of a hinged track or inclined way supported on the fixed frame of the machine in front of and parallel to the paper-carrying roller and in the path of a lever carrying a pawl pivoted on the axis of the paper-carrying roller, which is operated by reason of engagement with the said track as the roller-carriage is being moved back to cause the roller to be turned. This improvement is shown as applied to the Orandall typewriter, and the description of that machine is only so far given as is necessary to show the connections of the device with it and its operation on that machine.

The improvement further consists of a knob pivoted to the left-hand end of the papercarrying-roller shaft, so that the paper-carrying roller can turn independent of said knob.

In the drawings, Figure 1 is a plan or top View of the machine. Fig. 2 is a front view. Fig. 3 is a view of the right-hand side of the machine with the lower part of the type-cylinder and the back ends of the operating-levers broken away. Fig. 4 is a detached view of the back side of the hinged track with its supports attached to a section of the framework. Fig. 5 is a view of the ratchet-wheel on the right-hand end of the paper-carryingroller shaft and the pawl and levers for moving the ratchet-wheel and the paper-carrying roller. Fig. 6 is a front view of Fig. 4:, and Fig. 7 is a view of the left-hand end of the paper-carrying roller and its knob for turning it and a small knob pivoted to the shaft outside of its face.

The same letters and numerals indicate like parts in all the views.

The base-piece or lower part of the supporting-frame is indicated by A and the upper part by B, which is united to the lower portion by the posts 0, D, and E on top of the frame B. The frame F is mounted on ways so as to be movable thereon back and forth behind the type-cylinder, the forward movementthat is, from the right hand to the left-being accomplished by a spring the distance required on the line for each letter in the process of printing the words.

The return of the paper-carrying roller to its starting-point or backward movementis done by the operator putting his thumb or finger against the knob and pushing it back to the point for commencinganew line. On the frame F the journals of the paper-carrying roller G are mounted. On the end of the journal, at the right-hand end of the papercarrying roller G, a pawl-carrier H is mounted, so as to turn freely on it and outside of it. To the same journal a ratchet-wheel I is firmly fastened; A pawl J is pivoted to the carrier H, so that its freeend will drop into and lock with the ratchet-wheel. The carrier is also provided with a thumb-lever K, which proj ects forward or toward the keyboard of the machine, and by means of which the operator can, when it is necessary, turn the roller G the required distance for each line. On the lefthand end of the journal of the rollerGa knob N is fastened, by which the operator can turn the roller forward or back when necessary or use to push the roller back at the end of each completed line to begin another.

The paper-carrying roller G is furnished on its lower side with a small roller, which is held against it by springs which serve to hold the paper firmly against the roller G. This small roller is indicated by S, Fig. 2. The type-cylinder is indicated by L, and the keys by which it is operated by M.

The description so far applies to the Grandall type-writer. In using that machine as constructed it is necessary for the operator at the end of each line printed to push the paper-carrying roller G and its frame F back from the left to the right hand by placing his thumb or finger against the knob N. It is also necessary for him, by means of the thumb lever K, to turn the paper'carrying roller G the distance required for a new line. This requires two separate manipulations by the operator. If the operator fails to turn the paper-carrying roller G either before or after pushing the roller back, he will print again on the same line. To remedy this difficulty the automatic devices hereinafter described were devised and applied, so that but one movement by the operator is required. The devices consist, first, of the supporting-piece O, which is bent at right angles, and is fastcned by screws to the right-hand side of the upper portion of the frame 13, so that one branch of the piece will project outward from the frame, parallel to and a short distance in front of the paper-carrying roller G. In the construction of a new machine a projection could be cast on the frame to serve the same purpose. To the projecting part of this piece 0 a piece Q is connected by two screws a b. The piece Q has a curved slot at the point where the screw b passes through it, which admits of the outer end of the piece Q, being set and held atdifferent heights to vary the spaces between the lines, as shown by the dotted lines in Fig. 6.

To the outer end of the piece Q, on it's back side, one end of the piece R is pivoted by the screw 0, its other end being free to rise and fall within certain limits determined by the piece 0, which limits its downward move-V ment, and the lug or stop (Z 011 the piece Q limiting its upward rise. (See Fig. 4.) The piece R is formed with a ledge or shelf 2, that projects back from it at right angles, as shown in Fig. 4, and serves as a track for the friction-roller f on the lever g to travel on. This lever g is fastened to the pawl-carrier H, its end projecting forward from it at right angles to the journal of the paper-carrying roller. The friction-roller f is journaled on its projecting end, (see Figs. 1 and 2,) showing its relation to the track-piece R and its ledge or track c. Fig. 5 shows the different positions of the lever g and friction-roller f when in use.

To move the paper-carryin g roller from the left hand to the right, the operator places his thumb or finger against the roller-turning knob N. This worked satisfactory so long as there was no rotation of the paper-carrying roller produced by such movement. lVith the improvement applied to the machine the rotation given to the roller G, as it was moved back, imparted to the muscles of the finger or thumb an unpleasant and objectionable twist which interfered with the free movement of the roller G from left to right. This difficulty was removed by pivoting to the center of the outer face of the roller-turning knob N a small knob 71 By pivoting this knob, as described, the roller G when moved back by the operator turns freely independent of knob h,against which the operators finger or thumb is applied. It will be observed that these two knobs N and h are arranged outside of the carriage in which the impression-roller is supported. .By these improvements the operator can with great rapidity perform the work of changing the machine from the end of one line to the commencement of another with no possibility of printing again on the same line, however quickly the operator moves the paper-feeding roller back. If wider space is required between certain lines, the operator can use the knob N to turn the paper-feeding roller, and the thumb-lever K can also be used for the same purpose whenever the frictionroller 011 the lever g is not over or under the ledge or track e.

In Fig. 4 I have indicated by dotted arrows the course taken by the roller f 011 the end of the lever g as it passes the lifting ledge e. The full lines show the positions of the parts as the roller f (represented at 1) comes into engagement with the track or ledge e 011 the backward movement of the carriage. In passing from the position 1. to that indicated by the dotted circle 2 the roller f rides upon the incline formed by the upper surface of the ledge a following the path indicated by the arrow connecting circles l and 2. This causes the impressionroller to be turned, and as soon as the roller f escapes beyond the end of the ledge 6 it is immediately moved into its normal position by a suitable spring, this position being indicated by the circle 3. In assuming this position the roller falls below the elevated end of the ledge, and when the carriage makes its forward movements it takes the path of the arrow connecting the circles 3, 4t, and 1. hen it arrives at the position 4, it comes into engagement with the under surface of the ledge e, which latter is raised into the dottedline position as the roller moves to the position 1. Furthermovementcauses the disengagement of the roller and the ledge, when the latter falls into its normal position and is ready to again operate the paper-roller when the carriage is moved back.

It will be observed that the position of the track or ledge which operates the pawl-lever is between the extremes of movement of the end of the lever as it moves backward and forward with the carriage, its position being somewhat nearer the extreme forward or lefthand limit of such travel. The advantage of such arrangement is that it insures the operation of the pawl-lever and the turning of the roller, even though the carriage be not moved back to the extreme backward or right-hand end of its travel, so that whether a wide or a narrow marginbe given to the page being written the roller will nevertheless be automatically turned.

\Vhenever it is desired to move back the carriage without turning the paper-roller, as when a correction is to be made, the operator raises the free end of the pivoted ledge or track 6, so that the end of the pawl-leverwill not engage therewith as it passes. To facilitate such movement of the pivoted ledge or track, I preferably construct the parts Q and R of the attachment as shown in the drawingsthat is to say, so that there is an open space R between them. This space allows the operator to easily insert his finger below thepart R and raise it, for it must be remembered that the ledge or track e projects away from the operator, and it is not easy for him to reach this when operating the machine in order to lift it out of the way of the roller f.

Having described the invention and its operation, what I claim as new, and desire to secure by Letters Patent, is

1. In a type-writer the combination with a paper roller, and means for automatically turning it to feed the paper, a knob h, mounted at the vforward end of the said roller and outside of the carriage in which the paper roller is mounted, but free from being carried around or turning therewith, substantially as set forth.

2. In a type-writer, the combination of the following elements viz. a fixed frame, a movable frame supported thereon, a paper feeding roller, supported in bearings on the movable frame, a ratchet wheel attached to the journal of said roller, a pawl carrier and lever for operating said ratchet, pivotedto said journal and projecting forward at right angles thereto, and carrying on its end a friction roller; an inclined hinged track, supported on the fixed frame, in front of, and parallel to the paper feeding roller, and in the path of the pawl carrier lever, so that the friction roller on its lever, will pass over said track when the operator moves the paper feeding roller, from its left hand, to its right hand position, the knob, pivoted to the left hand end of the paper feeding roller, the

roller turning knob N, firmly attached to said roller shaft, the said knobs being arranged outside of the movable frame in which the paper feeding roller is mounted and the thumb lever K, attached to the pawl carrier H, so that they can either be used for turning the roller G, independent of the other, and independent of the track piece R, sub stantially as described.

3. In a type writer, the combination with the traveling carriage carrying an impression, paper-feeding roller, of a lever for turning such roller, a pivoted inclined track or ledge with which the said lever is adapted to engage, to cause rotation of the paper-feeding roller, a supporting piece Q to which the said pivoted track or ledge is secured, the said supporting piece being pivoted at a and provided with a slot, through which passes a screw 12, whereby the said piece may be adjusted in order to change the space between the lines, substantially as set forth.

4. In a typewriter, the combination with the traveling carriage carrying an impression,

paper-feeding roller, of a lever for turning such roller, a pivoted inclined track or ledge with which the said lever is adapted to engage, the said ledge being carried by a piece, R, and a supporting piece, Q, to which said piece, R, is pivoted, the said pieces Q and B being constructed substantially as described whereby there is an open space, R, between them, substantially as and for the purpose set forth.

OYRENUS WHEELER, JR. ,Witnesses CHAS. G. ADAMS, S. J. WESTFALL

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