US1053207A - Writing-machine. - Google Patents

Description

L. O. MYERS. WRITING MACHINE APPLIQATION FILED PBB.3, 1905. RENEWED JUNE 21,1911.

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L. 0. MYERS. V WRITING MACHINE. APPLICATION FILED PEB.3, 1,053,207;

1905. RENEWED JUNE 21,1911.

Patented Feb. 18,1913.-

2 SHEETS-SHEET 2.

lllllll 'ngi LEWIE (3. Batman: iEOZEtK, N. 2. AS$IGNOR T BDYA'L TYPEWRITER COMPANY,

' OF HOBOKEN, NEW JERSEY, A COBJPOEATIION OZE'NEW JERSEY.

Wm'rInG-Maonimn.

To all whom it may concern Be it known that I, LnwIsC. Mrnns, .a citizen of the United States, residing 1n the borough of Brook1yn,,city and State of New York, have invented certain now and useful Improvements in .Writirig-hflachipes, of

which the following is a specification.

This invention relates to paper feed de Vices of a; cylindrical-platen writing ma- .chine; and 'erally stated, comprises ready manipulation of the sheet or shests then disposed around the platen. A means is also provided for read-11y adjusting the tension or pressure of the feed. rolls located.

at tho rear of the platen.

The invention also contemplates the use of .a aper retaining and lding her an Q re 6 above the prmting me and capable oi ein rocked away {from the platen to rmit rec manipulationof the paper, com ined with means forautomatically return ing it to normal positiondurin the ordinary. traverse or the carrlagesiould it be left in withdrawn position by the operator. In the accompanying drawing: Figure 1 i a front elevation showing the platen and parts of the carriage of a front stroke writing marhine; Fig. 2, anelcvation of the right hand end of the carriage; Fin 3, a'

sectional view on the line 3, 3, of lg. 1;

Fig. 4 ,'a lan view; Fig. 5, a View similar to Fig. 2 ut with the parts in a difierent Fir. 8, adctail view "showin osition; Fig. 6, a cross section on the line 6, of Fig. 4E, with some parts omitted;

Fig. 7, a detail View showin% part of the e supporting lever upon which they are mounted; and a device for ad usting the tension spring-0 'the feed rolls.

a (a are the end. latcs of the carriage connected as shown y the varioustransverse members or shafts; 7), is the plateuto the ends of the shaft of which are applied the,

usual turning knobs; c is an adjustable cir-f cumf erential guard applied around the ratchet wheel of the platen; at, its actuating dog; and d, an adjustable stop thatholds the !W1 in engagement with'the. ratohgt whee these parts, howevar, are e ther old Specification of Letters Patent. jA'ppllcetion filed February 3, 1905, Serial No. E l hOQB. Renewed June 21, 1911. Serial No. 634,537.

Patented Feb. 18, 12113.

or form the subject matter of another appliQ cationfiled by me January 30, 1905, Serial Number 243,442. a

A rock shaft e in the rear of the platen is mounted to turnin the end plates and has two arms f, extending downwardly and toward the platen, and upon which. are mounted the front part 9 of the paper guide that-extends around the underside ofthe platen. In the cndsof these arms is mounted a shaft 11 that carries three feed rollers It extending through appropriate apertures in the curved aper guide plate 9 and working against t e rear face of the platen. Centrally arranged at the front of the platen and appropriately below the printing point is a paper feed and pressure roller '11 carried upon a spring arm or bracket 2" attached to the front rail j of the carriage.

shaft h isa curved arm in that passes under the platen and has at its front end a later-.

pink that extends over the v Thus, when the shaft 6 is Extending from the central part of the justing their tension as hereinafter .de-'

scribed. i s

Alever n pivoted on the end plate has a cam face a that contacts with a laterally projecting arm 0 extending from the side of one of the arms f through an enlarged opening in the end plate of the carriage. When this lever n is in the normal position shown.

iri Fig. 5, the reaction of the springs m."

raises the arms f and presses the feed roll toward or a ainst the platen. When it is desired, to a 0rd entire freedom for manip fulation of the paper in the machine, this "gil tier is depressed as shown in Fig, 2, where the shaft e and carrying from the platen.

out of engagement with the theprojectlng rod or arm 0 is thrown downlines in Fig. l. The faces of the sleeves adjacent. the end plates are formed with notches or radially disposed recesses g (Fig.

S) engaged by studs 1 projecting from the inner faces of the end plates. To adjust the tension of the springs, the sleeves g are retracted put of engagement with the studs 1'? and rotated to increase or decrease the tension 'of the spring. To facilitate this manipulation of'the sleeves, they are shown as formed with circumferential recesses, to receive a suitable tool. 7

Extending longitudinally across the face of the platen above the printing line is a paper retaining bar 8 carried in the ends of arms a projecting from rock shaft 15. These arms'are curved to conform to the nurvatures of the platen and a-thumb piece 7?- is applied to the one at the right hand side of the carriage so that the bar smay be thrown or rocked away from the face of the platen as indicated in Fig. 2. The bar 8 and arms 8 are held in either position by a spring'pressed, round-faced latch or bolt u mounted in the righthand end plate and working againstthe cam face 25 of the right hand arm 8. In machines of this class, a ribbon vibrator is usually arranged in front of the printing point on the platen and if an operator should neglect to throw the bar 8 back to normal position, the arms 8 might strike against the ribbon vibrator, or any other device that may be located adjacent to and in front of the platen.

An automatic means is therefore provided for returning the arms 8' and bar 8 to normal position during the traverse of the carriage. This device consists of a plate 12 vertically disposed and secured to the lower bar '0 of the carriage. At each side, its upper edge is inclined as at c and the arms .s are formed with recesses t that straddle the upper edge of the plate; consequently, when either of the arms rides against an inclined edge 1: it is moved upwardly until the highest part of the cam-face t passes beyond the center of the latch or snubbing bolt 11, the spring of whichthen holds the bar a yieldingly against the platen. The bar .5- has its edge adjacent or against the platen surface. In other words it is disposed, genorally, radially of the platen and its flat side serves, therefore, as a gage against which the front edge of a newly inserted sheet may be abutted to insure its accurate registry or arrangement in the machine. This gage is, of course, arranged above or'back of the printing line and is capable, as stated, of.

being thrown away from the platen to permit free manipulation of a sheet or sheets in the machine. -The backward extending part a; of the paper guide is formed with spring clips 3 that embrace the shaft 6. This part of the guideis prevented from dropping-down by an extension P0 of the arm is which bearsagainst the rear side of thesection a2.

Parts not specifically described-form no part of this invention and may be of any retaining bar 5 normally bearing against an upper face of the platen, means for throwing it forwardly and holding. it away from the platen and means for automaticallyreturning. it to normal position during the step by step traverse of the carriage.

'2. In a writing machine, the combination with the carriage and platen, of a paper retaining bar a, the arms in which 1t 15 carried, a rock shaft to which the arms are attached, means for throwing and holding the paper retaining bar away from the platen and a cam plate on the frame acting upon the arms in which the bar is mounted to automatically return the latter to normal position during the step by step traverse of the carriage.

3. In a writing machine, the combination with the carriage and platen of paper controlling means cooperating with the face of the platen and adapted to be moved and re-, main out of operative relation to the platen and means for automatically returning said paper controlling means to operative position during the step by step traverse of the carriage.

4:. In a writing machine, the combination with the carriage and platen of paper controlling means cotiperating with the face of the platen and adapted to be moved and remain out of operative relation to the platen and means for automatically returning said paper controlling means to operative position during the traverse of the carriage 1n either direction.

A visible writing machine comprising the combination of a platen carriage, a platen mounted therein with its printing surface permanently in view of the operator when either upper or lower case letters are belng printed, paper controlling means mounted on the carriage extending up 1n tenant of and cooperating "Withthe platen.

a with its printing face permanently in view of the operator when either upper. or lower case letters are being printed, paper controlling means mounted on the carriage, extending up in front of and cooperating with the platen and adapted "to be moved out of 0perative relation to the platen, means 'ic'or locking said paper controlling means in inoperative position and means for automatically releasing said paper controlling means the platen,

from locked position during the transverse traverse of the carriage.

7. A visible writing machine comprising the combination of a rotatable platen mounted with its printin face permanently in View of the operator-w en either upper or lower case letters are being printed, paper controlling means spring cooperating therewith and adapted to be moved out of operative relation to the platen, means for locking said paper controlling means in inoperative positlon and a cam for antomatigally releasing said paper controlling means from locked position during the transverse traverse of the carriage.

In testimony whereof, I have hereunto subscribed my name.

LEWIS oMYEns.

Witnesses:

KATHARINE MACMAHON, Lrnmn F. BROWNING.

Copies of this patent may be obtained for five cents eaten; by addressing the fl ommissioner of Yatenta Washington, I]. 0.

pressed, against

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