US1061464A - Type-writing machine. - Google Patents

Description

B; I". PRIZZELL. TYPE WRITING MACHINE.

. v I APPLICATION FILED MAY 15, 1912. l 1,061,464, l APatentsedMay 13,1913.

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www, FZ'ZZHZ B. F. FRIZZELL TYPE WRITING MAQH'INB. APPLICATION FILBD MAY 15, 1912.

f I 31am/Wto@ 6m ,mzzzeli' by* y B. F. FRIZZELL.

^ TYPE WRITING MACHINE. APPLIOATIQN FILED Mm 15, 1912. 1 ,061,464. 'Patznted May 413, '1913.

' 'BERNAnn nrnizznrr, or wAsmNe'roN, msrnrcr or icotimrA.

i TYPE-wm'rfrive MACHINE.

To all fwlwin it may concern: l 'I Be it known that I, BERNv F. FRIzzmL,

a citizen 'of the United States, residin at Washington, in-the District of'Colum ia, have invented certain new and usefulImprovements in Type-Writin AMachines;

and do hereby' declare the" fo owing to be' 'a full, clear, and exact description .ofthe vention, such`as will enable others skilled 1n the art-to which it appertains tomake'and usethesame.

This invention relates to typewntmg maf chines. l The object of the invention resides in the provision of an improved formrof-carriage shifting mechanism in which vthe actuating element thereof j moves in such a direction and is s o positioned with respect tothekey board that substantiallythe sane movement of the hand of the operator which eEects the.

actuation of the keys maybe utilized iniE-g Q l erating said actuating element'to .Shift carriage without-removing the ingers from .the key board.

` A further -object ofthg invention inthe provision of a carriage shifting mech;

. ating element of the carriage shifting ansm which includes improved'means for disengaging the escapementpinion-from the carriage rack bar topermit -free shifting of the Acarriage in either direction,-l said means being so positioned-with respect `to the m 'anism that samemay becontrlledand theZ gfactuating element simultaneously operatedl to shift the carria e with the use of only? a" 'single hand and with 4the latter' .disposedinboard.

With the above 'and other the invention consists-.inthe mscfg c'On struction and in the arrangeinntpandcom'- binationof parts to be hereinafter more u1ly scribeda' d particularly pointedout in the appended' claims. V

In des 'ribin .the -inventioniu1detail', reference will :be to. the :accompanying drawings' wherein like characters k of reference; denote correspondinparts in the sevenal yiews, and 1nwhic Fi e 1 isa plan view of a typewritin machine with 'certain parts removed an other portions shown broken away .and in section, to more clearly disclose the invention, Fig. 2, a side view of what is' shown in Fig. 1 with certain parts broken away and .other parts lshown in' section, Fig. 8, a side Specification of Letters Patent.' 'Application mea my 15;,1e12. semi Np. esmero.

the. opposite side lof' the machine from that disclosed in"Fi'g.' 2-and with certainparts broken away, Fig. 4, ais'ecti'on on the line PatenteaMay 13,1913.

view of what shownin-Figl looking at v 'spacing mechanism I IU-.the position they -would occupy before'1 5 said 1 mechanism has been operated to rotate the platen', Fig. `5,.a

view snnilar to Fig. 4, showing the parts'of the line 'spacing 'mechanism in theV position they would .occupy after 'saidmechanism has been operated to rotate 1 the platen, 6,' a detail'perspective' viewof one end` of the' carriage l and platen "f showing the 'improved construction for disengaging.A theplaten ratchet 'wheel pawl jfrom'lthe platen ratchet ,wheelhsaid; pawl beingl shown operative engagement with the platen ratchet wheel',V- Fig. ayiew simi1ar t oFig". 6 showing the'. .platen ratchet wheel pavvl locked out of engagement. with .the-l platen ratchet wheel, Fig. 8',- -a -detail plan view :partly section of the mehanism'for disconnecting'the es capement pinion from the' carriage rackbar, the parts of said mechanism being shown' in fall the vpositionthey would occupy; when the escapement-gpinioniskoperatvely connected with thecarriage rackbar and in; -dotted lines in the pos'itiofn'v they would-oc-l cupy when Asaid mechanismhas been opering :partly in section'and wi the. pinion offtheescapement mechanism Aout of engag'ement, with Athe .carriage rack bar, and' substantially operative relatigi "gto ,the key.

Fig. .10 va sec4 Referring' to the"dr'awings"'10indicates the basefof the machne'which may be of nj on the line 10%10', of

ported uponthe base' 10 ya bracket 14'.

Awhich rises from -the base. Mounted upon -thefrails12 and43 for reci rocation transversely of. the base 10 is a `r1age A which; includes- sidefmem rs 15 and 16, a rearvmember. 17 land-.a lfront member 1 8, said front vmember constituting the car -riage rack bar .and will hereinatenbe re- A' ten carferred to as'such.' The escapement mecha# nism of the, machine is indicated typically at B and is shown as including a frame 19 through which passes a shaft 20 and upon y the upper end of this shaftis fixed a pinion 4 between the key board 21 normally held` inl operative engagement with the rack "bar 18 `by a spring 21 dis posed between the'shaft 20 and the frame 19, whereby the stepby step feed of the carriage through the instrumentality of the escapement mechanism may be accomplished. The type keys of the machine are indicated at 22 and constitute collectively what is4 commonly known as the key board. Only a` limited number of these keys'are shown in order to more clearlydiselose tleessential` while a collar 27 is fixed-en thejouterend of the shaft- 25"dr'irriesf-alaterally ex: tending handle or arm 28 through the .in-' strumentality of which' then-'shaft 25 may h e' rotated to reciprocate the'carriage'A as willl hereinafter appear'. The handle' '28 projects `forwardly of-th'ebas'e 10 and isdisposed'jusb to one side,of"the"fkey board in position to be operated by the palm ofthe handuof the operator without removing the ingersffromthe key board.4 'Risingffrom the ba. 'se]0 'at the samed 4soa:ed"li *}ckets' 29and 430 in whichfisg'- rota-y is a crank arm 33 provided 'with alongitu-y dinal recess 34 openinr through its free'end.

Thisirecess 34 rotatab y receives thereduced stem 35 of a pivot block 3tlg-'the outer end of4 blockfterminating 1in.. an ear 37. -The stem 35 is rovided'with an annular 'groove 438 in. whic i projects a vscreyi1 39l mountedV 1n `'the crankarm 33,- said screwV serving'to lock the pivot block 36' against disengagement from the crank arm 33 butat thesame time permit-ting free rotation 'of gie-stem 354in lthe recess 34. Mountedupon're base 1 0 and extending longitudinally ofthemachinc is the usual-tail rotl 40 and rising from the rear .end of this rod is a pivot pin 41 upon whchis pivotally mounted foroscillation in la plane parallel to the base 10 an arm 42.-

l'he'pivot'end of the'arm'f42 is. held a't the' y proper elevation with respect to the tail rod -10 hyA nwans 'ot' a sleeve 43'loosely mounted 'dediereotasfthfe lbracket"24 are tbly journaled-ashaft 31.. ,'Thefforwardjg end of this shaft 31. has'iited'thereon la, seg-'f` mental beveled gear v32 which" meshes with@ the segmentalibeveled gear'26 on the shaft 25. Fixed remilie' rear end of the'shaft '31 on the pin 41 between the arm 42 and the tail rod. The arm 42 is pivotally connected adjacent its inner end 'with one end ot a link 44, while the other end of said link is pivotally connected to the ear 3T ofthe pivot block 36. The free end of-- the arm 42 is pivotally connected to one end of a link 45 and the other end of this link 45 is pivotally connected to a block 46 secured to one end of lacari'iage A. By this construction it will `been fed step by step by the operation of the machine, same may be returned by depressing the handle or arm 28 with the palm of the hand and without removing the fingers fromthe key board, This depression of the and ythis rotation of the shaft 25 will be transmitted to the shaft 31 through the medium of the 'meshing gears' 2G and ,32. The rotation of the shaft. 31 will, through the medium of its connection with the arm 42, swing the lfree end of this arm toward the right of the machine and as the free end of the arm 42 is connected to the carriage A by the link 45 the movcmenft of the arm 42 "ton'aipdf'the right of the mafchine.

As the escapement pinion 21 is normally in engagement with the rack bar 18 it. will be apparent that so long as `the pinion 21 remains in engagement with the rack bar 18 left ofthe machine step by step.. In order to disengage the pinion 21 from the rack bar 18 to permit free adjustment of the carriage t0 the left vof the machine through the medium of the handle or arm 28 there is pivotally mounted on the frame 19 of the es- 'capem'ent mechanism B a lever 47. The

bear'fagainst the' inner sideA of the shaft. 21, while thev forward lend of the leverj is dis- `posediin line with the shaft 25. mounted in the bore of :the shaft 25 is a rod an enlarged head 49. Surrounding the rod 48' with one .end bearing against tlm outer endof the shaft 25 and its other end bearing against the vhead .49 is' a spring 50. `The spring constantly tends to -move the rod 48 longitudinall 'toward the right of the machine and t is, movement of said. rod' is limited by means of a ange 51 formed thereonand adapted to engage the inner end of the shaft 25. By this construction it. will under the influence of the spring 50 to' its limit thespring21 will ,inove'the shaft 20 of the escapement mechanism toward the carriage so as to bring the pinion 21 into engagement with the rack bar 18.

pinion 21 from the rack bar 18 it only necessary for the operator to press the head be apparent that when the carriage A has Slidably handle or arm 28 will rotate the shaft. 25

vjust "referred to will returnl the carriage-A l the carriage A can only be moved to the..

linner .end of this lever is curved so as' to 4'8 theouter end of which is provided with be apparent that when the rod 48 is moved Should it be. desired to disengage the 49 with a linger of the hand in engagement V p status exists the carriage A can be readily f bers 15 and 16 of the carriage A is the usual tended through said lside members respec.

adjusted either tothe right or the left through the instrumentality of the handle or arm 28. i

Rotatably mounted between the side memplaten 52 the trunnions of which are eX- tively so that a considerable portionv of said trunnion wili be disposed outwardly of the side members of the 'carriage. The trunnion of the platen 52 disposed on the right of the machine has xed thereon the usual hand knob 53. Fixed on the trunnion of the platen on the left of the machine adjacent the outer ace of the side member 15 of the carriage is the platen ratchet wheel 54.

Rotatably mounted on thej-trunnion of thev Aplaten adjacent the outer face ofthe ratchet wheel 54 is an arm Y,55 the free end of which is provided with gear teeth 56 which mesh witha segmental gear 57 journaled on the carriage A and rotatable a plane parallel to the plane of the base 10. This segmental gear 57 is provided with a rearwardly directed arm 58 for a .purpose that willhere# inafter appear. Journaled in the arm 55 is a shaft 59 having its ends disposed on opposite sides. of said arm.. Fixed on the inner end of the shaft 59 is theplaten; ratchet wheel pawl 6G which is normally disposed in operative relation Ato the platen ratchet Wheel 54.I By this 'construction it will be apparent thatv if the gear 57' is rotated toward the front .of the machine it will cause a corres ondin movement of the arm.- 55

and as t e paw 60 is carried-by said arma correspondmgjmovemcnt will `be imparted -to the pawl which will'result in the rotation of the platen52 lowing to the operative engagement between the laten. ratchet wheel 54 and the awl 60. e mechanism so vfar describedv with respect to edecting the rotation ot the laten 52 is of well known construction an ill hereinafter @armed the line sparing mechanism. v t

Melmted. for recprocation between the side members 15 and 16 oft/he carriage is a rack bar 61 from which yprojects toward the front of them'achine 'an arm 62 and this arm is suitably connected at its yfree end withk one end of a Pitman 63, while the other end oit said pitman is pivotally connected to the* ree end of the arm 58 ofthe gear 57 of the lirie spacing mechanism. `The rack bar 61 is normally held at thev limit of its movement towardthc right of the machine by means of a sprint.r 64 suitably associated with the gear 5T to constantly tend to rotate said gear toward the rear lof the machine, the inuence of this spring being transmit ited'to the rack bar '61 through the pitman 63 and arm 62. By this construction it will be' apparent that when the rack bar 61 is moved from its v'normal position to the left of the machine it will serve to operate the line spacing mechanism so as to effect the desired rotation of the platen 52. Mounted upon the. base 10just inward of thebrackets24, 29 and 30 are spaced bracksol ets65 and 66'and journaled in these brackets j 65 and 66 is a shaft l67 having its axis of rotation disposed longitudinally of the machine. posed in alinement with'the spacer bar 23 and has fixed thereon a presser foot or key 68 the free end of which is directed inwardly The outerv end of the shaft 67 is dis! of the. machine toward the spacer bar23 and disposed in close proximity to the adjacent end of said spacer bar so that said. foot may be depressed to rotate the shaft 67 in 'conjunction with the operation of Writing and vithut removing the fingers from the key oar j Depending from the bracket 14is a block` v69upon-which is pivotallymounted an arm `76 for oscillation In aplane at right `angles to the base 10.v -Pivotally mounted on the free end of the arm 70 is'a pawl 71 provided with a tail 72. This pawl 71 is so positioned with respect to the rack bar 61 that when the `tail end of said pawl is moved rdownward. the oppositeA end thereof will'pass. into operative engagement with the teeth ofthe rack bar 61. Fixed onfthe inner end of `the 'shaft 67 adjacent the inner face'ofthe' bracket 66 is a crank arm 73 the lfree end of p which is pivotally conrectedto one'A end of a pitman 74 whilel the .other end of said.

Pitman is lpiv'otally connectedto the tail-72 ofthe 'pawl 71. Tt will be herenoted that thev pivotal connection between'v the' pitman 74 andthe tail 72 is disposed beneath the pivotal connection between the pawl 71 and vthe arm70 so that movement of the pitman 74 inwardly of the lmachine will rock the pawl 71 on its pivot and move the end diereo remote from. the tail 72 1into engagement with the teeth of the rack bar 6l.

In order to positively vinsure the movement of the pawl 71 into enga ement with the rack bar 61 there is provide a spring 75 having one end.anchored to the pitman 74 and its other end anchored to the crank arm 73, said spring being so arranged-as to constantly tend to throw the end of the pitnan `74 adjacent the pawl 71 downward. The

forward end ot' the shaft 67 is encircled by a spring 76 one end of which is anchored to irc ist

y 68. This spring constantly tends to rotate the shaft 67 in a direction that will draw the pitman 74 toward the right of the machine.

The pivotal connection between the pitman 74 and tail 72 is extended rearwardly of the machine and is adapted to engage in a seat 77 in the bracket le and act as a stop whereby the rotation of the shaft 67 is arrested when the pawl 7l. has assumed the position shown in Fig. 4. From this construction it will. be apparent that when the key 68 is .depressed and the shaft G7 rotated the pawl .7l will be moved into engagement with the rack bar 6l and then shifted toward the left ot the machine so as to impart a corresponding `movement to said rack bar whereby the line spacing mechanism is operated to rotate the platen 62 in the manner previously referred to.

It will be noted that as long as the pawl 60 remains in engagement with the platen ratchet wheel '54 it will be impossible to rotate the plate 52 backward. In order to lock the pawl 60 out of engagement with the ratchet wheel 54 the following structure is resorted to. The trunnion of the platen 52 which carries theI ratchet wheel 54 has fixed thereon a collar 78 disposed adjacent the arm 55. Fixed on the outer end of this trunnion is another collar 79 `having the same external diameter as the collar 78.

.Slidably mounted on the collars 7 Sand 79 inner end with outwardly directed flange l82 Ythe peripheral edge of which is beveled as at 83 'for a purpose that will presently appear. Surrounding the trunnion of the laten is a coil spring 8a one end of which ears against the inner end of the collar 79 while the other end thereof bears against the flange 81. This spring constantly tends to move the sleeve 8O inwardly and maintain the flange 81 in engagement with the collar 78. The sleeve 8O is provided. at its outer end with an angular slot 85` in 'which is engaged a pin 86 mounted in the trunnion of the platen. By Ithe arrangement of the pin 86 and slot 85 the sleeve 8O may be drawn outwardly and then rotated axially so 'as to dispose the pin 86 in that portion of the slot 85 which extends transversely of the sleeve 80. `With the pin thus disposed the sleeve 80 will be locked against inward movement under the influence of the spring 84. Suitably mounted on the outer end of the sleeve 80 is a hand knob 87 corresponding to the knob 53 on the opposite trunnion of the platen, said knob serving as an eflicient means for operating the sleeve 80.

wenn@ Fixed v nnthe outer end of the shaft 59 adjacent the outer face of the arm 55- is a nnger 88 the free end of which is beveled :is at 89 and positioned to coperate with the beveled periphery 83 of the flange 82. When the sleeve 8O is disposed in the position shown in Fig. 6 the pawl 60 is in engagement with the ratchet wheel 54; and the free beveled end 89 of the finger 88 is in engagement with the beveled periphery 83 of the flange 82. Upon moving the sleeve 8() outwardly the beveled edge 83 will cooperate with the beveled end 89 to rotate the shaft\59 and move the pawl 60 out of engagement with the ratchet wheel 54. When this is accomplished the platen 52 may be rotated freely in a backward direction. If it is desired to maintain the pawl 60 out of engagement with the ratchet wheel 54: it is only necessary to rotate the sleeve 8O so as to position the pin 86 in the transverse portion of the slot 85 as has been previously referred to. Adjustably mounted upon the base 10 for movement transversely of the latter is a stop bar 90 upon which is mounted a stop 91 disposed in alinement Awith and in the pat-h of'travel of the pit` man 63. By this construction it will be apparent that as the carriage A is returned .to the right the inner end of the pitman G3 will, at the termination of such return movement, engage the stop 91 and cause said pittoward the left of the carriage which will result in the automatic actuation of the line spacing mechanism to rotate the platen 52.

What is claimed is: A

1. ln a typewriting machine thecombination of a base7 a carriage mounted for reciprocation on said base, an escapement mechanism normally'in operative connection with the carriage, a rotatable member mounted on the base, means for rotating said member, connections between the ro` tata-ble. member and the carriage whereby7 the rotation of the former will reciprocate the latter, a rod slid'ably mounted in said the movement of said rod in one direction for disconnecting the escapement mechanism from the carriage.

2. In a typewriting machine the combination of a base, a carriage mounted for reciprocation on said lbase, an escapement mechanism normally in operative connection with the carriage, a lever pivotally supported by the base and adapted when moved in one direction to disconnect the escapement mechanism from the carriage, a rotatable member mounted on the base, .means for rotating said member, connections betweenthe rotatable member and the carriage whereby the rotation of the former will reciprocate the latten' and means carried y said rotatable memberlfor effecting rotatable member, and means operated by4 man 63, arm 62 and rack bar (il to move mechanism normally in operative comico-, a lever pvotally tion with the carriage, supported by thebas'e and adapted `when movedl in one directionV to disconnect the escapement mechanism from the .carria e, a rotatable member 'n mounted ,on the ase, means for rotating said member, connections between the rotatable' member and riagewherebythe rotation of the former will reciprocate the latter, andy slidable means 'carried by said rotatable member for effecting the movement of said leverto disconnect the escapement mechanism from the carriage. I 4: 1n a tyewritmg machine the combinatlonof a ase,4 a carnage mounted-for r reciprocation konsaid base, an escapement t com anni; patent may be mama-m the car--4 mechanism normally in operative connection with the carriage, a lever pvotally supportedb the base and adapted when moved in one direction to disconnect the escapement mechanism from the carriage, a rotatable member monted on the base, means forrotating said member, connections between the rotatable member and the carriage whereby the rotation of the former will reciprocate the latter, and a 'rod slidably mounted in said rotatable member and adapted when moved in one direction to en# gage said lever and operate `the latter to d15- onnect the escapement mechanism from the carriage.

ture, presence of two witnesses.

' y p I BERNARD F. FRIZZELL. l Witnesses: 'H. M-POPHAM,

vef cents each, bi addressing the Commissioner immers Bosma.l v

- Y Washington, D, G3 A c: man,

In' ,testimony whereof, I aix my signa-l'

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