US923527A

US923527A - Type-writing machine.

Info

Publication number: US923527A
Application number: US34720206A
Authority: US
Inventors: Charles W Howell
Original assignee: SUN TYPEWRITER Co
Current assignee: SUN TYPEWRITER Co
Priority date: 1906-12-10
Filing date: 1906-12-10
Publication date: 1909-06-01
Anticipated expiration: 1926-06-01

Description

0. W. HOWELL. TYPE WRITING MACHINE. APPLICATION FILED DEG.10,1906.

Patented June 1, 1909.

2 SHEETSSHELBT 1.

VII/l/I/I/I/III/I/IIIY/Ill/A G. W. HOWELL.

TYPE WRITING MACHINE. APPLICATION IILEDHDEO. 10, 1906.

' Patented June 1, 1909.

2 SHEETS-SHEET 2.

INVE/VTUR WIT/H8858: ad I I in which keys are depressed to effect type e tions between said rock arms and fixed abutventing the types from reaching the platen.

ANT BEIGE.

rliiARLES. W; HOWELL, Oi NEWARK, NEW JERSEY, ASSIGNOR- TO SUN TYPEWRITER COM- PANY, A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented June 1, 1909.

Application filed December 10, 1906. Serial No. $7,202.

To all whom it may concern:

Be it known that 1, CHARLES W. HOWELL, a citizen of the United States, residing in Newark, in the county of Essex and Stateof New Jersey, have invented certain new and useful Improvements in Type-Writing Ma chines, of which the following is a specification.

This invention relates to writing machines impressions upon the paper, an d in which t carriage is fed a letter space at each key de-- pression; and particulz-irly to thosemachi-nes in which means are provided for preventing the types from printing when the end of a line of writing is at hand.

One of the objects of the invention is to provide simple, inexpensive and reliable means controlled by the letter feeding carriage for preventing thetypes from printing, at the end of the line, and to provide a simple device for releasing the types to enable a word to be completed, and also to provide a sim le reliable margin gage mechanism inclu ing. right hand and left hand carriagestops both releasable by the same device that releases the types. 1. illustrate these improvements embodied in a Sun typewriting machine in which a universal bar operl ated by all the type bars is pivoted upon a i pair of rock arms; and I provide interponents i which are movable by the carriageto posiments providedupon the framework, thereby preventing vibration of the arms and. pre- The' carriage is provided with a tap et adjustable to lock the types at a variab e point in the line of the writing; and said tappets are releasable by means of a key which is also adapted to release the carriage from the control of adjustable stops, which regulate the right and-left hand in argins upon the aper. Other features of my improvements re ate to paper-feeding devices comprising front and rear rolls pressing against the under side of the platen and releasable by sim 1e and effective means, and also including re easable' front paper-guiding fingers of novel construction and operation.

My in'iproveinents further include a novel line-space regulator and also a platen releasing mechanism having novel features.

in the accompanying drawings, Figure l is i a sectional elevation taken from front to rear tebth or notches 16.

of a Sun typewriting machine showing my improvements applied thereto. Fig.2 is a front elevation partly in section of the line locking mechanism, seen at Fig. 1. Fig. 3 is a plan of a fragment of a release key rod showing its loose connection to a crank, seen at Fig. 2. Fig. 4 is a plan of an interponent showing its loose-mounting upon an endwise movable rock shaft, the latter having a pin for efi'ecting movement of the in-terponent lengthwise of the shaft. Fig. 5 is a plan of the mechanism seen at Fig. 1.

Keys 1 are mounted upon bell-cranks 2 connected by links 3 to type bars 4 which swing upwardly and rearwardly to strike against the front side of a platen 5. The latteris mounted in a frame which comprises a truck 6 and end pieces 7, 8 erected I thereon; said truck being held by balls 9 upon front and rear tracks 10, 11. In saidmachine, the tracks and platen frame are lifted up and downbodily to enable different types to print. The platen frame or carriage is driven by a spring, not shown, and provided with a letter spacing mechanism including a universal bar 12 operable by all the type bars; saiduniversal bar being seg mental and overlying a slotted segment 13, in which the type bars are held by means of a curved pivot rod 14. 7

Upon the rear side or edge of the truck 6 is fastened a bar 15 having teeth 16 cut in its to face at letter spaceintervals. Adjustab e along said bar is a stop member 17 for regulating the right hand margin on the paper sheet: This stop member is made of sheet .rnetal and comprises a plate which overlies the teeth 16 and ears 18 bent down alongside of the rack bar and turnedinto recesses or grooves 19 formed in the base of the bar, so that the stop member is securely held against turning upon or lifting off from the bar.

Screws

20 and 21 pass down through a lever 22, the latter having a tooth 23 projecting down through a hole 24 in the sto member 17 and taking into one of the'rac At its other end, the lever is provided with a finger-piece 25, whereby the lever may be rocked to lift the tooth 23 out of the notches 16, and also whereby the stop member 17 may be slid down, and the head of the screw 20 is sufh- LOO the stop, a key 33 is provided near the key side of the stop member .17 and formed 43 upon the projection 44. Hanging from abutment is carried upon the upper end of .advance until arrested by the engagement journaled in I framework of the 'machine.

ciently highabove the lever to permit the necessary play of the latter, asseen at Fig. 2. Extending rearwardly from the sto member 17 is a stop 27; and in the path of the latter is an abutment 28 to cooperate with the stop 27 to arrest the movement of the carriage in letter feeding direction. Said an arm 29, which is hinged at 30 upon a pair of ears 31 secured upon the framework, that is upon the vertical shifting frame 32 that carries the carriage tracks 10, -11. The abutment is mounted upon the hinge 30, so that it may be swung rearwardl y out of the path of the stop 27. To effect the release of board u on the front end of a rod 34 extending to t 1e rear of the machine and provided with an elbow 35 having a slot 36 to engage a pin 37 upon an arm 38, which is rigidly connected to and swings with the abutment arm 29. By pressing back the key 33, the abutment 28 is swung back far enough to clear the stop 27 and release the carriage for further letter feeding movement. A. .spring 39 on the rod 34 returns the latter and the abutment to normal ositions upon the release of the key. '1. e carriage may then of a stop 40 with an abutment 41 fixed upon the framework, said st-op40,being fiXed upon the carriage and determining the final limit of movement of the carriage in that direction.

An arm 42 is bent down from the front with a forwardly projecting tappet43. In the path of said tappet is an n istanding. arm 44 fixed 11 ion a horizontal rock shaft 45 rackets 46 fixed upon the Said shaft is movable endwise by the action of the tappet said rock shaft are two arms 47 carrying interponents 48 whichnormally occu y positions alongsidebf the rock arms 49 iinged at 50 upon the framework, and also hinged at 51 to the universal bar 12; said rock arms 49 vibrating at every ty e stroke and forming part of the carriage eeding mechanism. The rock shaft 45 has pins 52 projecting through slots 53 in the interponent arms, so that when the shaft is moved endwi'se by the 'tappet 43, the interponents 48 are moved to the left at Fig. 2 into positions directly back of the vibrating arms 49. and between the same and fixed abutments 54 provided upon the framework. The interponents rest against the abutments so that the movement of the vibrating arms 49 is blocked, and the types are prevented from reaching the platen. 4

' If now it is desired to write a few more letters, so as to complete a word, thelrey 33 is pressed back together with the rod 34, and a slotted arm 55 on the latter swings back a crank 56 depending fro m the end of the rock shaft 45, whereby the latter is rocked and the projection 44 is swung forward, to escape the tappet 43 whereupon a compression 1': .spring 57 upon the rock shaft forces the latter tothe right, at Fig. 2, to normalposition,

thuswithdrawing the interponents 48 and permitting the arms 49 and the universal bar 12 to operate and the types to print. Upon. Jr.

the release of the key 33, the spring 39 moves the rod 34 forwardly, thereby rocking the shaft 45 back to normalposition. The type keys may then be operated to add a few characters upon the end of the line of writing. 5:,

The rear edge of the tappet 43 is beveled, and the corresponding portion of. the projection 44 may also be beveled, as seen at Fig. 5, to enable the projection to ride 'freelyover the tappet when the carriage is drawn back to begin a new line of'writing; the tappet camming the projection forwardly against the tension of the spring 39 which subsequently restores the parts to normal positions.

The margin on the right hand edge of the 5-5 paper is regulated by a stop member 58 having a stop tit-to engage the opposite side of the abutment 28; the member 58 being substantially similar to the member 17 and having a corresponding tooth lever 60, to engage the rack 16-, whereby-the width of the margin may be regulated. If it is desired to write in the margin, it isonly necessary to press back the key 33 and-move the abutment 28 back out of the way of the stop 59, whereupon the carriage may be moved to the'right, as far as desired.- The stops 27 and 59 are rounded at 27 and 59 upon their outer edges, so as to cam the abutment 28 out of the way when necessary. The carriage is-also provided with a stop 61, to engage thefixed stop 41 to determine the final limit of return movement of the carriage.

The slot in the release rod 35 may be sufficiently high to accommodate the up and down shifting movements of the frame 32.-

Having thus described my invention, 1

claim: v

1. In a typewrit'ing machine having a set of key-operated types and a carriage and also including a member reciprocating at each type stroke, the combinatiornof a tappet adjustable along the carriage, a rod extending along the carriage and mounted upon the framework of the machine and carrying an arm in the path of said tappet, an abutment, an interponent upon said rod and movable thereby into position to cooperate With said abutment to arrest said reciprocating nember to prevent the types from printing, nd means for turning said rod independently of the. said interponent to rock said arm, out of path of said tappet.-

2. In a typewriting machine having a set of key-operated types and a carriage a nd arms connected to the universalbar and reriding along the carriage and mounted '5. jccting arm out ol the pathfof said tappet,

- and said rod to normal positions.

1 rein printing, and means for turning said also including a universal bar and a pair of ciprocating at each type stroke, the combination of a tappet adjustable along the carriage, a rod extending along the carriage and nicunted upon the framework of the machine and carrying an arm projecting into the path of said tap et, a pair of abutments, interponents movab le by an endwise movement of said rod into positions to cooperate" with said abutmcnts to arrest said rcciprot eating arms to prevent the types from printing, means for turning said rod. independently of said interponents to rock said proand means for returning said interponents In a typewriting machine having a set of key-operated types and a carriage and also including a member reciprocating at each type stroke, the combination of a tap-' "t adjustable along the carriage, a rod eX- upon the framework of the machine and carrying an arm in the path of said tappet, an abutment, an interponent upon said rod and movable thereby into position to coop crate with the abutment to arrest said reciprocating member to prevent the types rod independently of said interpone nt to rock said arm out of the path of said tappet said arm and tappet having relatively inclined surfaces engaging each other upon the return of the carriage, to permit the arm to ride freely past the tappet.

In a typewrit'ing machine having a. set of key-operated types and a carriage and also including a member reciprocating at each type stroke, the combination of a stop memberl adjustable along the carriage, a movable abutment upon the framework of the machine in the path of said stop member to cooperate therewith to arrest the carriage, a tappet upon said stop member, a rod extending along the carriage and mounted for both ei'idwise movement and rotative upon the framework of lhe machine and carrying an arm projecting into the path or said tap- 1 pet, an abutment, an interponent caused by the endwise movement ofsaid rod to move into the path of said reciprocating member l and cooperate with said abutment to prevent the types from printing, a finger piece having means to turn said rod to rock said projecting arm out of the path of said tappet, resilient means for returning the interponcnt and the rod to normal positions when 5 released by said finger piece, and means for enabling said finger iece to move said abutment out of the pat of said member.

5. 'In a typewriting machine having a set of key-operated types and a carriage and also including a member reciprocating at each type stroke, the combination of a stop a tappet upon said stop member, a rod ex--' tending along the carriage and mounted for both endwise movement and rotation upon the framework of the machine and carrying an arm projecting into the path or said tappet, an abutment, an interponcnt caused by the endwise movement of said rod to move into the path of said reciprocating member and cooperate with said abutment to prevent the types from printing, a finger piece hav ing means to turn said rod to rock said projecting arm out of the path or said tappet, resilient means for returning the interponent and the rod to normal positions when released by said finger piece, means for enabling said fin er piece to move said abutment out of the path of said member, an additional abutment mounted upon the framework, and an additional stop upon the carriage to engage the additional abutment to determine the final limit of movement of the carriage.

6. In a typewriting machine having a letter-feeding carriage and a set of types, the combination of a rack for said carriage, a stop member adjustable along said rack, an abutment hinged upon the framework in the path of said stop member,- to cooperate therewith to arrest the carriage when returning to begin a new line of writing, a second sto member also adjustable along said rack an engageable with the opposite side of said hinged abutment to arrest the carriage movement in letter-spacing direction, a spring-pressed releas-rod'loosely connected to said hinged abutment and extendin to the front of the machine, to swing the a utment out of the path of the stops, additionalv abutments fixed upon the framework, additional stops projecting from the ends of. the carriage to engage said additional abutments to determine the final limits of the move ments of the carriage, a tappet upon the second stop member, an endwisemovable rockshaft carrying an arm projecting into the path of said tappet, a pair of interponents movable by means of an endwise movement of said rock-shaft into positions between a pair of fixed abutinents on the framework and a pair of arms connected to a; universal bar, to cooperate with said abutments and said arms to prevent the types from printing, an arm upon said rock-shaft and connected to said release-rod to enable the latter to release said projecting arm, a sprin for returning said shaft endwise to nornia position to withdraw said interponents when said projecting arm is released from said ta pet; said projecting arm having a beveled e e to ride over said arm to rock said shaftid y during the return of the carriage, and said interpocombination of a tappet upon the carriage, a

rock-shaft carrying an. arm in the path of,

said tappet,*a pair of interponents carried,

looselyupon said shaft and movable thereby into positions between a pair of fixed abutments on the framework and a pair of arms carrying a universal bar, to cooperate with said abutments and said arms to prevent the types from printing, means to release said arm from said tappet, and a spring for returning said shaft endwise to normal position to Withdraw said interponents when said arm is released.

8. In a typewriting machine having a letter-feeding carriage and a set of types, the combination of a rack for said carriage, a stop member adjustable along said rack, an abutment hinged upon the framework in the path of said stop member, to cooperate therewith to arrest the carriage, a spring-pressed release-rod loosely connected to said hinged abutment and extending to the front of the machine, a tappet upon the stop member, an endwise movable rock-shaft carrying an arm projecting into the path of said tappet, an inl terponent movable by means of an endwise movement of said rock-shaft into positions between a fixed abutment on the framework and an arm connected to 'a universal bar, to cooperate with said abutment and said arm to prevent the types from printing, a crank my hand, this 6th day of December, 1907.

CHARLES W. HOWELL.

Witnesses:

WM. H. OAMFIELI), E. A. PELL.