US987765A - Line-lock and margin-stop mechanism. - Google Patents

Description

G. SPIRO. LINE LOCK AND MARGIN sToP MBGHANISM.

APPLIOATION FIL'ED 11mm, 1910.

987,765. Patented 11211.28, 1911.

C. SPIRO. LINE LOCK AND MARGIN S'IOP MBUHANISM.

` APPLICATION I'ILED AUG. 4, 1910.

Patented Mar. 28, 1911.

Z SHBETS-SHEET 2.

lTo all whom vltmafy concern:

cHAnLns srrno, or NEW YORK, N.- Y.

LINE-LOCK AND MARGIN-STOP MECHANISM.

names.

'i Specification ofLettersPatent.

ppucationmed August 4, 1910. serial No. 575,524.

Be it known that I, CHARLES Srmo, a citi- Azen-of the United States, vresiding at New York, county of New York, State of New i York, have invented certain new and useful -Improvements 1nv Line-Lock and lVlargin- Stop Mechanism, ofv which the following is a Specification, reference being had therein to the accompanying drawing.

The invention disclosed in this application lrelates broadly to typewriting machines and specifically' to. line lockand margin .stop mechanisms for a typewriter carriage.

The principal vobject of this invention is to construct a margin ,stop and line lock. vmechanism for a front strike typewriting machine in which the stop actuators are located to the rear of the paper table, and are so positioned 'as to be easily and quickly ad.- justable from the front of the machine.

Another object of this invention is to construct a line lock and margin stop kmechanism for a typewriting machine wherein both the margin stop and line lock devices are released by means of a single release key levert.

Another object of this invention isto construot'a line loek? mechanism for a typewriting machine which a'lock stop isv swung into the path of a swinging stop in order to lock the printing, eseapement, and

'ribbon mechanisms when the carriage has reached a pre-determined point in its travel;

the positioning of said -stopsbeing eHected by means of a latch cam mounted upon a movable carriage.

Another object of this inventionuis to vcon-v struct a line lock mechanism for the carriage of a typewriter in suchmannerthat the' locking parts are adapted to be unlocked bydepressionu on a release key which moves the parts 1n the 'same direction as the y -arts were moved to be ,thrown into locking position. l

Afurtherobject of this invention is to construct a line lock mechanism for a typewriting machine. in whicha movable actuating .cam 'member is carried upon the line lock actuator. in the path of mechanisms adapted to position the stops when the carriage has reached a pre-determined point Ain its travel. i y

Still' otherlan further objects 'of this invention will vin part be obvious and will in part be'vpointed out hereinafter in the speciiication bygreference to the accompanying drawings in which like numerals are used to indicate' like parts throughout the several figures, and thescope of the invention will be indicated by the appended-claims.

Figure 1 is a view showing a typewrit-ing machine in sectional elevation. Fig. 2 is a view showing the line lock mechanism in elevational detail. Fig. 3 is a view showing the line lock mechanism in detail in front elevaticn. l Fig. 4 is a plan view of one of the line lock stops. Fig. 5 is a detail view of the movable latch member.

Patented Mar. 28, 1911..

Referring particularly to Fig. 1, it will be noted that'several parts of a typewriter are disclosed in this view which do not relate specifically to line 1'ick or margin stop mechanism, and therefore, these particular parts will only be described in a .general way. However, the particular mechanisms which do not form a part of the-specific combination of elements in the margin stop and line lock mechanisms, are covered byv applica* tions for patent co-pending with this application.

Referring specifically to Fig. 1, the ma' chine frame comprises side portions 1, which are connected by means of a front bar 2, at thefront of the machine, and by means of a rear bar 4, at the rear of the ,machine Upright posts 5 and 6, are formed integral with the side members 1, and are adapted to carry a top plate 7, which is liXedly mounted upon the upper ends of the supporting posts 5 and 6, by means of any well known method for interlocking metallic arts. A front board 8,is carried in the Jfgont portion of the machine between the supporting posts 5, and is adapted to protect type heads 9, that are mounted upon type bars-10. The type bars 10 arev pivotally mounted in a type bar hanger segment 11, and are operatively connected with key levers 12, which terminate in the forward portion of the machine in key cap members 14. The top plate 7, is adapted to carry ribbon spools 15 and actuating mechanisinsl therefor,.which are o eratively connected with a universal bar 1P?, in such manner as to be actuated each time a printing key 14 is depressed in the key board. The top plate 7 is also adapted to support a carriage bed 18, upon which is reciprocally mounted a carriage frame 19, by means of anti-friction balls 20. A swinging platencarriage 21, is mounted within the carriage frame 19, andis adapted `to .carry a cylindrical platen 22. Line'spacing mechv 'the cylindrical platen 22..ll Platen 4:shifting anisml 24,` isv mounted u on .the lcarriage frame 19, and lsoperativ'ey connected with mechanisms 2 5 jare arranged 'in such manner as to enable the cylindricalplaten to be shifted from one,' ,printing level to another at the will of the'ope'rator. .v

It is believed t-hatthegeneral description hereinbefore'given is sufficient `for an understanding of 'the relationship ofthe severalI parts of the typewriting machine in assembled relation, and the description h'asbeen given' for the reasonthatlall of. the partsl of the typewriting machinefare necessarily more or. less interrelated in their construction and operation, however, the remainder. 4`of the specification lwill be devoted spe'- ciiically v to description of margin stop land line lock mechanisms. p

Referring more specifically toFigs. 2 and 3 of the drawings, .a 'margin stop carrier 26 and a line lock actuator 27 are plvotally and slidably mounted upon a rod 28 which forms the pivotal supporting rod for lthe swinging platen carriage21, and are provided, with which extend in an upward 'direction sub-v.

stantially back of and beneath-apaper tas ble 37, in such manner'that when the'ifinge'r pieces 35 or 36, are pulledl towardthe .front of the machinethe toothed faces 32 are disengaged from the rack 34and either of the right.

members 26 or 27, may be moved longitudinally of the rod 28 and positioned: thereupon at any point which the operator may choose. The margin sto carrier 26, which is located upon the rig t of the carriage frame, terminates rin a downwardlyv depending portion which carriles astop 38. As the platen carriage is returned from left to right to begin a new line, the stop 38 is moved from left to right until it comes into engagement with a swinging stop member 39, which" is pivotally mounted upon a stud screw 40 upon the top plate of the machine frame, and is resiliently heldin the ath of the adjustable stop 38, by means o asmall coiled spring 41, which is mounted upon the stud screw 40. The enga ement of the adjustable 'stop 38 with tie swinging sto 39, merely determines the distanceI to whic the carriage of the machine can' be moved to the In other words, it determines the wldth of the'margin at thel left of the typewritten page and doesnot lock any yof the yfrom .right to left, and forf't actuating'vparts of the typcWrit-ing machine, for the reason that it is desirable to print a letter or character when the stops 38 and 39 arein engagement with each other. ever, it is some times: desirable thatthe carria'ge mechanism may be *moved a distance rmember *42,-is' mountedinthe lmachine frame u lnon a stud 'screw 44and is ,formed with 'an o lie the tail portion ofthe-.swinging sto 39. Thel upper end ofthe vpivotedfc'cpmtro ling member 42, terminates in a line lock actuating member 46, whichfcoperates with the line lock mechanisms to .l be described hereinafter. The 'tail portion 47 ofthe pivoted' 'controlling member 42, vis ,adapted to-,be re ceived -wlthin 'a bifurcated portion 48,

formed upon the 'unperendjof a ybell crank member 49, which 1s lixedly mounted upon .a rocking shaft 50,'that is pivoted within the machine frame. A wire spring 51, is iixedly set member 45, which is adapted to' undermounted upon thebell crank member 49, and

engages with the pivovted controllingmember, 42, in such manner Aa's'to maintain the moyable parts'42 and 49, in lnormal position.. A bell crank stop carrying member 52, vis lixedly mounted upon theopposite end of the rocking shaft 50, andthe arm 54 of the bell crank1 member'52, -is 'operatively coniiected by means of a connecting link 55, toV a release-key lever 56, which is pivotally mounted in the machine 'frame as'at 57, andv extending forwardly terminates in akey cap 58, which is adapted to occupy a position in a plane above the key caps 14 in the key board.I Asmall coiled spring 59, attached to the. release key lever 56 and to the type bar segment 11, in such manner'as to normally maintain the key lever in proper position. The link member 55, is constructed with its upper end provided with a slot 60, in order' that the release key lever 56, will not be actuated by the carriage when the line lock mechanism, hereinafter to be described, is set by movement of the carriage. After the margin release 'stops 38 and 39 have been released in order to permit the carriage to move beyond them in its travel toward the left, it becomes necessary that the parts shall be so constructed as not to be rengaged to lock the carriage Awhen the carriage is moving under themfluence of the escapement mechanism andfcarriage spring drum in its normal-letter s ace movement hisknurnose the carries a pivotally mounted cam dog 62, that isprovided with a beveled camface 64,

which is normally held in a forward position by means ofv a small coiled spring 65,

, asis clearly shown in Fig. 5. As the carriage mechanism is moved from'right ,to left under the influence of the carriage spring drum, and controlled by the escapement mechanism, the-swinging cam dog 62 comes into engagement `with a beveled face 66,

. which is formed upon the line' lock actuating member 46, formed integral with the lock controlling member 42: The co-a'ction of the cam face 64 with the beveled face 66,

is such as to swing" the member 42Vupon its pivot,`and turnsthe rocking shaft 50,' by

means of the bell crank member 49, thus swinging the bell lcrank stop carrying member 52, and positioning the line lock stop 67 in the-path of an oscillatingstop 68, which is carried bythe universal bar 17. When the line lock stop 67, is in the path ofQthe oscillating stop l68, the universal bar 17 canv not be actuated, and therefore the Whole of the. operation'of the typevvriting machine i which lhas todo with the .printing operation,

is locked against actuation-and it becomes impossible tc'depress the printing key l2 in order to actuate the type 'bar l0 orto cause escapement action of the carriage, the reason for this being that lwhen the end of a line is reached, it is desirable that the operator shall be notified thereof to preventrunning from oil' the paper and spoiling thc right hand margin of' the-typewritten page,

and after thecarriage has ceased to move it becomes necessary thatthe printing mechay nism shall be locked in order that Vletters will not be printed one-upon the other before the operator is aware of the stoppage of the carriage. However, it frequently is' desirable that a letter or two may be added to com-v plete a Word or that a hyphen may be inserted to indicate a Word is completed uponthe next line.

In order-to permit further movement of the carriage from right to left,

l it is nccessarythat the locking parts shall be disengaged, and it will be seen that if ythe key cap 58 of the release key lever 50is depressed,

the bell crank stop carrying member 52 Will be oscillated byl means of the carrying link 55, to swing 'the line lock stop 67 forward in l member. 49, the,pivotedvcontrolling member.

v(38. crankl stop carrying member oscillatesthe same directionthat it was moved to locking position in the path of theoscillating stop The swinging movement of the bell rocking shaft 50, and swinging the bell crank 42ste also swung aV suiiicient distance to permit the. line lock actuating member 46, to

swing out `of the path of the cam dog 62,

Which'is immediately restored to normal position by means of "t e -coiled spring 65, and upon releasing pressure on the key cap 68,

the several parts ofthe line lock mechanism will return to normal position Within the line lock stop 67, and 'will lie in a cut-away portion 69, of the` oscillating stop 68, and the printing mechanisms of the'typeWriti-ng machine are unlocked and free to actuate in the i usual normal manner.

In the construction which has hereinbefore vbeen described, it will be noted that both the margin stops and the line lock mechanisms are 'adapted to he. released by the same release key,l and that y,the releasing operation -does not affect or swing any of the partsV controlled by the moving carriage,

with the exception ofthe small cam dog 62, and furthermore, that-.n releasing the line lock mechanisms, .the releasing operation carries the line lock mechanisms forward in the same direction which they are positioned l fI desire to claim is 1,-

,1. In a margin stop mechanism fortype- Writing machines in combination,a'macliine frame, a platen carriage mounted. for reciprocal movement upon said machine frame, anadjustable `mangia stop carried by said carriage mechanism, av pivoted stop mounted in said machine frame, and releasing means for'actuating said pivoted'stop, said releasing meansl mcludinga pivoted actuating member, -a ,release keylileveif;'-pivotally mounted in said machiiieframe, a rocking shaft operatively connected with said pivoted key lever, and operative means connecting said rocking shaft and said pivoted stop4 member.l t

2. In a margin stop mechanism for type- Writing machines in combination, `a machine frame,a platen carriage mounted for reciprocal movement upon said machine frame, a margin stopv adjustably:mounted` said. platen carrlage,` a pivoted stop'. mounted in said machine frame, and means-for releasing n y said pivoted stop from engagement with said margin stop, said releasing means comprising a pivotedactuating member.- a releasing key lever pivctally mounted in said machine frame, a rocking shaft, means for operatively connecting said rocking `shaft 'with said pivoted lever, a pivotcd controlling member, yand means operativel)T connected with said rocking shaft and adapted vto coperate with-saidvpivoted controlling member. c A

3. margin stop mechanism for type- :Writinglmachines including a mainframe, a 'carriage vmounted vfor reciprocal movement upon said main frame, a pivotal rod 'mounted 1n said carriage, a cross rod also mounted 1n said carriage, a 'margin stop mounted for vrotatable and longitudinal movement upon 'said pivoted rod, a leaf spring carried byv oted controlling lever, a line lock stop carried by 'said rocking shaft, a universal bar,

and an oscillating stop carried bysaid.universal bar.

5. A line lock mechanism for typewriting vmachinescomprising a machine frame, a

platen carriagev mounted for reciprocal movement upon said machine frame, a line lock actuator adjus'tably mounted in said carriage, a controlling member, and means carried by said.l lineL lock actuator and adapted to operate said controlling member,

al rockingI shaft, means' o eratively connecting said rocking shaft with' said controlling member, a lineV lockstofcarried by said rocking shaft, a universa bar, and an oscillating sto operativelyonnected with said universal ar.

6. A line lockmechanism for typewriting machines comprising. a machine frame, a

. platen carriage mounted for reciprocal movement in said machine frame, a line lock actuator adjustably mounted in said platen carriage, a sprin T controlled cam member pivotally mounted on said actuator, a cam face ,controlling member pivotally mounted in said machine frame and normally having said cam face in the path `of said pivoted cam, a universal bar, an oscillating stop carried by said universaly bar, a line lock stop adapted to be positioned in the path of said oscillating stop, and means for operatively connecting said controllingmember with said line lock stop.

7. A line. lock mechanism for typewriting machines comprising a machine frame, a carriage mounted for reciprocal movement upon said machine frame, a line lock actuator adjustably mounted in said carriage, a controlling member mounted in such manner as to be movable transversely to the movemcnttnof said carriage, a univetsal bar, an osciliating s top operatively connected with said universal bar,"a line lock stop, and

means operatively connectingsaid line lockstop with said controlling member in suchmanner that said line'lock stop ispositioned in the path of said oscillating stop When the carriage has reachedpa pre-determined point in its travel. 7

8. A line lock mechanism for typewriting ymachines comprising a machine frame, a.` carriage mounted for reciprocal movement upon said machine frame, a line lockactuator adjustably mounted in said carriage, a 7

controlling member mounted in such manner as to be movable transversely to the movementof said carriage', a universal bar, an oscillating stop carried by said universal bar, a line lock stop adapted to be positioned 8v in the path of said osclllating stop, means operatively connected with said controlling member and with said line lock stop in such manner that said line lock stop is positioned in the path of said oscillating stop When 8 the carriage has reached a vpre-determined point in its travel, and means/ttor causing said line lock stop to4 be rembved from the path of the oscillating stop.

9. A line lock mechanism or'typeWriti 9 ingmacliines comprising a machine frame,

a carrlage mountedfor reciprocal movement stop carried by said universal bar, a line lock stop adapted to be positioned in the path of said 'oscillating stop, and means operatively' connecting said line lock stop with said controlling member. i 10. In a line lock mechanism for type- Writing machines in combination, a machine frame, -a carriage mounted :for reciprocal movement upon said machine frame, a line lock actuator adjustably mounted on said carriage, a pivotedycam member operatively mounted .on said actuator, a controlling member pivotally mounted in said machine frame, in such manner, as to havemovement ina plane substantially at right angles to the direction of movement of said reciprocating carriage, a line lockstop, a universal bar,an oscillating stop carried by 'said' universal bar, means operatively vconnecting said line lock stop` with said controlling member, and means for actuating said line lock stop in such manner as to cause said controlling` member to be removed from the path of said cam member.

11. A line lock mechanismtor typewriti ing machines including a main frame, a carriagc mounted for reciprocal movement upon said main frame, .a .lineI-lock actuator adjustably'mounted in saidc nrriage, a con? y trolling member inounted'in said machine frame, an oscillating cam member mounted upon/'seid aetutqr and normally in the. path of seid.v conoio ing member, means for disengaging vseid controlling member from said osclllatingmember, means for oscillating said cam member when said ontrolling l member is dis-eng-ged therefrom, an oscilf 1atin'gstopa line1ock stop,'and Ineens connecting-seid eontrolling member and said line look-stop. 10

In testimony whereof I x my signature' in presence of two witnesses.

` CHARLES SPIRO.

Witnesses:

EDWD. E. JONES,` H; P. ALBEN.

Gopips of fsmayptent may be obzained 4for ve cents each, by addressing the Commissioner of Patents,

d Washington, 1D.l C.

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