US2085464A - Feed mechanism for typewriters - Google Patents

Description

5 4 Sheets-Sheet 1 T. FRENCH I FEED MECHANISM FOR TYPEWRITERS Filed` March 21, 193

june 29,1937.

| I I I I I I I I I I I L J /N VEA/TOR f June` 29, 1937.

T. FRENCH FEED MECHANISM lFOR TYPEWRITERS Filed March 2l, 1955 4 Sheets-Sheet 2 uv VEA/Tof;

OMAS' gre/Yak MM 2f @mi A TTO RN E Y June 29, 1937. T. FRENCH 2,085,464

` FEEDMECHANISM FOR TYPEWRITERS- Filed March 21, 1935 4 sheets-sheet s IN VENTO R 75m/m5 BY @maa/ni ATTORNEY June 29, 1937. T. FRENCH l FEED MECHANISM FOR TYPEWRITERS Filed March l21, 1955 4 Sheets-Sheet 4 .R Y m M mln f R V WM m w T 5 l A 6 y. Y 91 B 1 ,4 L H a rm WL L 2 m `V\\ 4. www .e a? 4 fa un 9 29. s .6, 2. e a (2 im m 2 1 8 m Patented June 249,` 1937 s a UNiTED STATES PATENT ofFiF'rCE, N w

FEED MECHANISM Foa TYPEWRITERS `Thomas French, Itumford, Maine Application March 21, 1935, serial No. 12,172

16 Claims.

. This invention relates to feed'mechanism for a printing machine, and more particularly to -mechanism for automaticallyfeeding to `and removing from typing position-in a typewriter,` or other printing machine, envelopes, post-cards or other similar material to be printed.

Itis the object of this invention to provide mechanism whichfeeds material from a supply magazine, successively and without overlapping,

totyping positionon the impression cylinder low such automatic feed and removal, my invention is especially directed to mechanism which allows this continuous feed while at `the same time not requiring more than one thickness of envelope to be held by the impression cylinder at anyone time.' Heretofore it -has been sug-` gested that the envelopes be fed around the impression cylinder in underlying relationship in order to have only' the distance of one double space between the last -lina of typing 'on the preceding envelope and the position of the ilrst line to be typed on the succeeding envelope,` so -that the `latter will be brought to operating position by one double spacing after the former iscompleted. Two envelopes besides that being printed 'are therefore held by the impression i cylinder after` the typing operation has started.

`Inthe case of envelopes there is thus a thickness at places of `six` pieces of paper held by the i impression roll.` Such operation is described in U. s. patent to H; L. chenery, No. 1,817,235 or August 4,1931.l

My device provides mechanism which allows `but one envelope lto lbe engaged in the impression cylinder'at any one pointand by one simple movement of a lever the succeeding envelope is properly positioned for printing while at the same time the envelope just printed is removed.

There is thus no overlapping or doubling up of lthe envelopes inthe typewriter mechanism `and l the energy required to turn the impression forth hereinafter, will be apparent from the foltaken on the line G--6` of Fig; 3;'

`usual typewriterfeed, to feed the material intermittently into operative position in front of `terial `to a collecting device.

(Cl. IS7-130) lowing descriptiontaken in connection with the accompanying drawings in which:`

Fig. 1 is a side elevationshowing the essential `portions of the usual typewriter withmy feed mechanism ailxed' thereto;` s s Fig. 2L is a perspective viewof the upper portion of myidevice with certain parts omitted; Fig. 3 is `a plan view of `a typewriter with my` device attached thereto; s s j Fig. 4 is a side elevationtaken on the line 4 4 10 of Fig. 3with thebottom portion broken away;

Fig-. 5 is a front elevation taken on theline 1 5-5 of Fig. 3, also with parts broken away; y

Fig. 6 is af rear elevation, partly broken away,

l5 Fig.4 7 is an enlarged elevation `View taken from the rightfhand side of the machine as "fromline 1--1ofFig.3; j V U Fig. 8` is in part a horizontal section taken on the line 8-8 of Fig. 7, and in part a plan; and 20 Fig. 9 is a` cross-section` taken on the line sf-9 of Fig. s. i

lteferringV tothe drawingsand.particularly` to Figs. 1 and 3, I have indicated generally a typewriter of the usual form, having a platen 25 roll 2 mounted onthe shaft 3 which in.A turn is supported on the reciprocatingcarrlage I inthe usual manner. The customary spacing lever is provided which operates to` revolve the.` platen roll 2, step by step a predetermined distance `to 30 space the lines vertically as is common in typewriting. The typewriter carriage I reciprocates from right to left as the typing proceeds and is moved in the opposite direction at the completion of` a line of typing to returnthe carriage to starting position in the usual manner.

4My mechanism involves broadly two co-operating feed mechanisms, one of which, indicated generally` at A in Fig. l, is devised to feed. maf

"terial, such asenvelopesor the like, from a 0 magazine, directly tol certain feed `rollers in the i anism are adapted, in co-operationwith the the platen rollo 'I'he second feed mechanism also has additional rollers which reengagerthe `material after ithas been typed to deliver the ma-` The second feed mechanism, which -will rst `be described, is shown in Idetail in Figs.` 7 and 8.

Angle irons 5, shown in Fig. 3, arepermanently ailixed,` one on each side of theiitypewriter car-` 55 riage l in parallel relation as shown in Fig. 3. i

Each of said angle irons includes a side flange 5ay rising vertically from its outer edge. The angle irons 5 with their side flanges 5a which are thus secured to the typewriter carriage I are adapted to secure in proper position on the carriage the feed mechanism B which, after it has in each of the plates 1. After assembly of the B mechanism, constructed as hereinafter described, the mechanism and the plates 1 secur- .ing it together, are inserted between the flanges ,5a and are removably secured thereto by any suitable means such as pins 6 fixed in the flanges 5a and co-operating with the slots 8 (Fig. '1) in th'e plates 1.. n

Fixed tothe shaft II yare the knurled feed vrollers I2, gear|3 and pinion I4. Mounted to the rear of the shaft I is the shaft I5 which carries,

fixed thereon, the knurled feedlrollers whose peripheries are yieldingly urged toward the feed rollers |2Jby means of the sliding bearingsIG, in

.which thev shaft |5 is journaled, spring-pressed in the direction of the shaft I I by springs' I8. Shaft `r I6 also carries fixed thereon the gear I9 meshing .with gear' I3 on the shaft II.. Aithird pairyof knurled feed rollers are mounted on the shaft 2|v which, as indicated inFig. 7, is disposed in front of the shaft II and above the same. The shaft is held in bearing springs 22 which curve upwardly and forwardly from the bearings I0.

' The springs 22 function to urge yieldingly the peripherles of feed rollers 25 toward the feed rollers I2. yShaft 2| is driven from shaft II by means of Vthe gear 24 fixed on the former shaft andengaging gear I3 fixed on the latter. The teeth gears 24,Y I3, and I9 are sufficiently long to permit the relative yielding movement between the feed rollers without( disengagement of the gears. Y

The feed'rollers 25, I2, and 20 are rotated at the proper time for the purpose of feeding material, asv hereinafter'described, by a rotation imparted to the pinion I4 on the shaft II'; through l :sisy

the'following` train of mechanism."` Pinion I4 meshes vwith gear 28 rotatably mounted ona sleevel which in turn is mounted on the stud shaft 21 projecting from arm 26 which, for the purpose kof certain adjustments hereinafterto .be described, is pivotedion the outside of the bearing I8 by means o.l av split sleeve which canbe secured in any desired position radially of the shaft I I' by means of the screw 26a. The gear 28 is in turn driven by pinion 29 (Fig."1)'which, as indicated in Fig. `l, is fixed on the shaft 3 onfwhichv (Fig, 3) the platen roll'is mounted. The purpose of mounting gear 28 on stud shaft 21, which 'can be seeture'dY in` various positions radiallyl of the shaft-IIL is tofposition gear 2lil for proper mesh l with pinionZS on the end of shaft 3 upon assembly of the B unitbetween angle irons 5. The

"-gear train 23, 28, |4,'I3 and gears 24 and |9iare so constructed andthe diameters of vthe feed krollers25, I2 and 20 proportioned relative to the "diameter of platen roll 2 that the said feed rollers and the platen roll travel at the same'peripheral fspeedr 'fr Y f1 As indicated in Fig.y 1, the shafts 3, 2|, II, and

"15 are sofv positioned relative .tol each other, .that

the feed. rollers "I2 and 20 carried by the'shafts I| and I5 are adapted to feed material delivered to the feed rollers I2 and 20, downwardly to the rear of the platen roll 2 carried by shaft 3 and between it and the idle feed rollers behind the platen roll 2 which are commonly provided on typewriters.

As indicated in Fig. 3, guide fingers 95 project over the top of the platen roll and engage the leading edge of the material, as it emerges upwardly over the front surface of the platen roll and direct it upwardly and rearwardly between feed rollers 25 and I2.

Further details of the mechanism for rotating feed rollers I2 and 20 will be hereinafter described.

The feed mechanism designated generally at A in Fig. l is adapted to deliver material from a storage receptacle to the said feed rollers I2 and 20. The mechanism A is supported above and to the rear of the main typewriter mechanism by the frame 30 which is suitably secured to the frame proper of the typewriter in any suitable manner as by angie irons 3| which are secured t0 the frame 30 and engage any suitable cross bar on the bottom of the frame of the typewriter,

and by brackets 32 affixed to each side of the frame 30 and receiving screws 34 having at their forward end lugs 33 which engage the fixed upright members at the rear sides of the typewriter.

The frame 30 supports a platform 35, provided with suitable sides 36 to form a box-like container adapted to receive and store the envelopes and other material 31 (Fig. 2). For the purpose of accommodating envelopes of different lengths the sides 36 are preferably constructed for adjustment laterally of the typewriter proper and to ythat' end I mount each side 36 on the platform 35 for sliding movement laterally of the frame 30 and I further provide each side 36 with an arm |23 (Fig. 3) which extends toward the center of the machine and terminatesin a rack |20 engaging a vpinion I2I manually rotated by a thumb piece |22 (Fig, l). Obviously rotation of the thumb piece |22 is effective to adjust each of the sides 36 an equal amount away from or toward the center of the machine.

The envelopes 31 are constantly urged forwardly against a stop element 38 (Fig. 2) on the forward part of the frame, by a movable pusher element 39 which is adapted for movement longitudinally of the container and is guided in its movement by suitable slots 40 (Fig. 3) in the platform 35 receiving and co-operating with suitable tongues or other cri-operating elements projecting from the bottom of the pusher 39. The

pusher 39 is constantly urged forwardly by a cord i 43 attached at 43a to the bottom of pusher element 39 and extending therefrom around the idle roller 44 to the drum 4| which contains a spring or other suitable mechanism which urges clockwise rotation of the drum 4I as viewed in rof individual envelopes and feed them downwardly to the above-described feed rollers I2 and 20.

To ensure that the envelopes which are pressed forwardly against the stop 38 do not of their own accord slip over the leading edge 35a of the platform 35, I provide a. pair of extensions |26 flush with the supporting surface of the platform 35 75 through thermechanism now to be described. The arms``46 on which. the bar 5U" is `pivotally f velopes `are removed` from the stack `31` except and by` these extensions |26 I ensure that no enthose which are mechanically engaged and fed by thefeeding elements now to be described. The `envelopeengaging elements ofthe feed ,mechanisrncomprises the fingers I which, as`

indicated inFig. 2 engage behind the iiap of the leading envelope. For the purpose of proa viding `thenecessary vertical .feeding motion of the feed ngers 5I, I mount the said fingers on the cross bar 50, the opposite ends of which are mounted at the extremities of levers 46. QFor the purpose of moving the bottom edge of the leading envelope out over the extensions |26 I provide that the fingers 5I a are not only reciprocable vertically, but are alsoiadapt'ed to rotateslightly in "3a counter-.clockwise direction as viewed in Fig. 2

`and to that end the bar`5ll `to which the feed I fingers 5I are rigidly secured'is mountedin bearings 50a in the extremities of the arms 46.

The :normal position `of the 'feed fingers 5I is baclrvilardly` against the leading` envelope ofthe stack and a yielding pressure `ofl the fingers in `that direction isobtained by means of the tor- `tion spring 52 encircling ,the bar`50 and secured` `at one end to thesaid `bar and at the other end `to the arni 46. a ,"The Vvertical recprocation of the` feed fingers I. 5I is producedautomatically by` the reciprocation of the carriage -`I` carryingfthe platen "roll 2,

I,amountedarethemselves pivoted at 41 (Fig. 1) `to the frame` 3|) "and,l are "provided with suitable springelernents 48 which urge the` arms 46 in C clockwise rotaticin` from the full line position of Fig. `1` to the dotted line position. Pivoted at 'I9` to the `arms 46 arefthe links 18. Pivoted at 11 to the linksv1r8 are, the arms 16which are `in turn fixed toa shaft `15 which, as indicated in IFig. 6, `extends crosswise of the machine and is suitably'journaled in the side walls of the frame.

`Rotation of `the shaft15isf effected "by the crank arm'14 secured tofthe shaft 15 and connecting the link 12 by theuniversaljoint 13., The oppositeerdjoi` link"`12 is connected by means of luniversal,joint 1I to one `arm 16 of a bell crank levergpivoted `69, the other arm 68 of which I projects.upwardlylandis adapted to engage and "be actuated by certain" adjustable stop mecha- 'riismattachedtothe reciprocating carriage I. 'Ifhe carriage I has fixed thereto `and adapted to `reciprocateftherewitha 'xed projection 63 anddisposed adjacent the path ofjreciprocation of `the projection 63` is the slide 60 mounted on a"rod 6I fixed at -both`ends `in theframe `66 and `extending parallel tothe direction of reciprocation of the carriageand projection ,63. `Said i `slide 60 is provided with lug" 62" extending into` "the path of" movementof the slide 6I] and the lug"`62iscon`stantly urged toward the stop 64 on the` rod` 6I bythe spring 65 attached tothe slide 66 andr to theframe` at 66. To rotate the arm 68 of the bell fcrank `leverby the'reciprocation thus f imparted to the `slide 60, I provide the pin 61 in the slide" 6I)` and projectingfoutwardly therefrom to engage` the arm 68 adjacent its end.` Asindicatedin Fig." 6, `the slide 6I)` is provided withV a nnrnber ofholes, each onel ofwhich is adapted to receivethe said pin 61` and `I `am thereby enabled to adjustthe relative movement of the wcarriagel` and bell crank ar`m`68. Itis thus apfparentfthat sidewaysreciprocation of the carriage I rotatesarms 68and 10 of the` bell `crank lever and, through the various linkages hereinabove described, thereby elevates` and depresses the arms 46 (Fig. 1) which carry the feed ringer mechanism. a

`As stated above, the feed fingers 5I are yieldingly urged ina clockwise direction (as shown in Fig. v2) about the axis of the ba-r 50, by means of the spring 52 whereby `to ensureinsertion of the fingers behindthe fiapof the foremost en- `velope duringyertical reciprocationof the iingers, and for the purpose of moving the lower edge of the foremost` envelope over the extensions I26` Lprovidethat the "feedfingers 5I `are at times given a slightlcounter-clockwise rotation about the axis of the bar 56. This counter-clockwise rotation is automatically" imparted to the `fingers 5I upon downward motion of the bar 5I] bymeans oan adjustable cam surface 55 on the right-hand edge of the 'front `wall 30a of the container and adapted 4to beengaged' by the cam I roller154 carried by `the lower end of an` arm 53 a fixed to the extremity of the bar 50, which, it

will` be remembered,` is rotatablymounted in bearingsin the` extremities of the vertically reciprocablearms 46. `The cam surface 55 is so positioned verticallyof the front wall 30, relative to the length ofthe arm r5i! that the desired z counter-clockwise rotation is imparted tothe feed fingers 5I `after they have entered the flap and while they are 'approaching `the fold `of the` flap. I

As described above, the verticalreciprocation `of the feed fingers 5I, obtainedjthrough a correspondingmovement of the side arms 46, is effected each time the fcarriage I of thetypewriter` is moved to its extreme right-*hand position at the completion of aline of" typing;` The name `andaddress which "is" typewritten on an envelope the first line of typing, `customarily"comprising the name of theaddressee, each movement of the` carriage to "the right is accompanied by a feeding movementofltheplaten `roll to provide the `proper vertical spacing for the 3first line of l theaddress. To preventfeeding by-"ithe ngers 5I until the last reciprocation of the carriage I, I providethat for each lateralreciprocation of the carriagel during Whichthe spacing lever 4 is also actuated, `to space the lines vertically,

the feed fingers 5I moveforwardly into inoperative position `so that they do not engage behind the iiap ofthe foremostenvelope and `no feeding by the fingersl takesplace. v s a For thatpurposethebar 50 to which the feed flngers 5I aresecured is provided at its extremity opposite to that to whichfthe camflever 53 is secured, with a second cam lever 56` having a cam rollerf51bearing ontheedge ot` the cam lever 93. The said cam `lever 93 ris pivoted at 92 to the frame and is connected, intermediate `its ends, to the arm 88 (Fig. 4), the opposite end of which arm is pivoted at"88 `to the lever 86 pivoted at 81 to the frame and guided in` its rotational movement by thepin81b projecting from the frame and `received in thearcuate slot 81a inthe lever 86. A spring 94 secured to the stud shaft 61 bears againstthe lever 86 `to urge the"leverr86to thelimit of its `counter-clockwise rotation `as determined by the pin, 81h `and` slot 61a, as indicated in Fig. 4. v

that` purpose, is provided :with a. nose/83 (Fig.y 3)

which co-operates with the projection 82a on the lever 80 tomove .the bar 80 longitudinally and toward the lever88each time the spacing lever 4 is actuated, as will bev apparent. Y

, As is customary, the `lever 'l Vis operated 'manually for the purpose off vertically spacingthe typing lines at the beginning of the lateral reciprocation vofr lthe carriage I which returns the carriage to its starting position. During this return movement; ofthe carriage, the lever 4 is held tothe'limit of its counter-'clockwise rotation (Fig. 3) Theresult of this combined movement is tohold the slide 80 in its rearward position durlingy thefreturn stroke of the carriage and thebeveled nose 48,5 of theslide 80 thereby reciprocatesin Va path which vincludes the nose 80a of the ,lever 85v to actuate the same.

The mechanismv above described which actuates the feed fingers r5| at the proper intervals and which also ensuresthat they remain inoperative at the proper moments, is effective to remove the foremost envelope `from the stack'31 and deposit'it in thevbite ofthe feed rollers l2 and "20., The strokey ofthe feed fingers 5|` is designed to deposit the lowermost edgev of the envelope between the'kn'urled rollers vI2 and 20 vwinnaar@ yieidingiy heid together and u; wiu'be i observed from Fig. 3 that the feed fingers 5| are ,notfaligned vertically'above the feed rollersy i2 between the rollers.

and 2l so that the vfingers themselves do not enter Therotational movement of the platen roll 2 and feed rollers 20, I2I and 25 which has in part ,.been described above and which will be amplified hereinafter, isfso-.designed that when the first envelope isi in position in front of the platen roll 2 forthe typing of the first line, .customarily f comprising the name ofthe addressed, the lowermost edgeof the next succeeding envelope will just have been received in the bite of the feed rollers |2and 20. The typing ofthe first line on-lv the first envelope then proceeds and at the completion of that line of` typingthe carriage Y iis givena longitudinal movement'to the right toreturnthe rcarriage toits initial typing posivtion and this return movement is accompanied by a spacing rotation of .the platen roll 2 to pro- Lvide the proper verticalspacingfor the second. .fline of` typing.y This return reciprocation of the carriage I. and spacing rotation of the platen roll 2 is effected simultaneouslybyamovement to the i right (Fig. ai of the lever 4 1n the usual manner. yThe rotational movement of the platen roll limpartsV a similar movement to the feed rollers l2 ,and 2l to advance the second envelope a small amount corresponding to .the vertical `distance between theho'rizontal lines of typing.l The feed *ngers 5| will reciprocate during this return movement of the carriage I, butwill be inoperative dueto the action ofthe cam lever 93 and Um i (Fig. 2).

A similar movementwillv take place at .the end of the second line of typing whichi will advance the `second venvelopeanother smallamount by rotation oi'v thefeed rollers I2 and 20 and so on for the third line of typing, the second envelope advancing a slight amount each time the platen roll 2 is given a spacing movement. At the completion of the third line, the first envelope is ready to be removedfrom the typewriter and the second envelope must be fed from its intermediate position to the proper position in front of the platen roll 2 for the typing of the first line. The rotational movement of the platen roll 2 and feed rollers l2, 20, and 25 necessary to eject the first envelope from the machine and simultanecusly to positionv the second envelope in the proper place for the typing of its first line is effected by one stroke of the lever |0| (Fig. 1).

The mechanism associated with the lever |0| which ejects the first envelope and simultaneously feeds the second envelope to typing position upon movement of that lever will now be described.

yAs indicated by a comparison of Figs. 7 and8, the lever |0| terminates in a hub |00 rotatably mounted von the stud 21. 'I'he hub |00 has secured to its periphery a plate 98 which is surrounded by the enlarged annular sleeve |09 integral with hub ||0 also journaled on the stud 21.` As indicated in Fig. 9, the plate 98 is cut away at intervals around its periphery, as indicated at |01to form wedge-shaped slots receiving the cylindrical rollers |08, the diameter of which is slightly less than the widest end of the slot'l01. The rollers |08 are spring-pressed away from the wide ends ofthe slots and'toward the narrow ends by compression springsv received in orifices drilled in the plate 98, as indicated in the drawings. The rollers |08 are retained in `the slots |01 by means o1 the plate 99 (Fig. 8)

covering the open side of the slots |01.

It will be apparent from this construction that the manual vcounter-clockwise rotation of the lever 0| with its integral plate 98 will be effective tofjam the rollers 08 in the slots |01 and against the annular'sleeve |09 to effect a corresponding counter-cloekwise vrotation of the sleeve: |08. Return movement of the lever |0| `will not, however, effect a corresponding move- `ment of the sleeve |09.

The hub |'|0 on which the annular sleeve |09 is formed is connected to the gear 28 by clutch mechanism to be described but which clutch mechanism is in engaging position during the .said counter-clockwise movement of the lever |0| so Athat a similar counter-clockwise rotation of the gear 28 is effected, which, through the `gear28 (Fig. '7) and pinion I4 (Fig. 8) effects a clockwise feedingr rotation of the platen roll 2 and a similar feeding'movernent of the feed rollers I2 and 20.

For thepurpose of adjusting the throw of. the lever 0| and the corresponding extent of feed movement ofthe .platen roll 2 and feed rollers y I2 and 20, I provide, for co-.operation with the lever |0| any adjustablev stop |05 in the form of a bolt extending through the arcuate slot |03 in the guide piece |04, the stop |05 being. se-

`cured in anydesired position in the slot |03 by means of the thumb screw |06. The lever |0| is provided with a finger |02 also received by the slot |03 and adapted to travel vtherein during the feeding movement of the lever 0|, which finger |02 abuts the adjustable stop |05 at the desired limit of the feeding movement. The lever |0| may be manually returnedfto its Fig. 7 position or preferably suitable springs may be provided for effecting this movement automatically upon 'release of the lever.

. `2,085,464. The clutch mechanism above referred to which "l connects the gear'28 withthe hub lll) andassociated mechanism operating withtheilever |0|,

is provided for the vpurpose of enabling the typist to rotate the platen roller manuallyin a counterclockwise direction asviewed in Fig. 1 `and `contrary tothe direction of. the usualfeeding rotation, if such movement is desired, without mov- Qing the lever IDI.

The `hub I I5 of the gear 28 `is provided with clutch teeth ||5 adaptedto engage the co-operati ing clutch teeth IM on the annular hub `||I2 "whichis mounted on the outer surface of the l sleeve carried "by the stud 21. l

The hub H2 is securedito" the sleeve IIB-for rotation `there-` vvithvand` reciprocation` thereon, by a spline or other suitable `connection such as thekpins ||`3 s projecting inwardly from the" inside surface of i the hub l l2 and `workingin the elongated `slots |||la of the sleeve H0. With the hub |||l `pojfsitioned as indicated in Fig. 3, with the teeth l5 i andl` H4 in engagement 'with each other, ro-

tation f the sleeve ID through the mechanism above-described and actuated by thehandrlever `1"|0|`,"`will impart asimilar rotation to the gear `28a`nd `thence `tothe platen roll and the feed "t lpewnowmanuallymoved` away from the gear 28 and in the directiorrof the retaining washer so that the clutch teeth ||5 and ||4 are out of `engagernentthe platen roll 2 may be manually rotated in` either `direction without moving the lever` IUI. Although such `moverrlentof `the. clutch is necessary to provide a free movement l of the platen roll 2 inra counter-clockwise di.- f

rection as viewed in Fig. l,it is `unnecessary `to Mdisengagethe clutch for `theusual clockwise feed ofthe platenroll, such as by the spacer ""lever 4, as therollenmechanism illustrated in" Fig. 9"permitssuchmovement free of the lever lill,` and thereforethe clutch need not' be disengaged each time the spacer lever 4 is actuated.

With the mechanism constructed as above j describeditsoperation is as follows:

"A stack of envelopes is placed in the magazine supplyon the table 35 between the stop 38 and pusher 39,` withtheir iiaps `at the bottom and facing forwardly. The typewriter` carriage is then moved `tothe right withoutactuating the spacer lever 4, untilthe platen roll has come to posi-- ftion for the typing of theiirst letter of the rst word atthe lefthand side of an envelope.

allyfa stopis provided on the typewriter to stop l the carriage reoiprocation at this point. `Dur- 55 ing this movement the feed fingers 5| have moved downwardly along the surface ofthe foremost envelope in` thepack and because of the spring 52` have passed between the back of the envelope and theseal iiap and thus engage the envelope.

f6() l" .in their downward movement the` cam roll 54 en- Just priorto their reaching the fold of thefiap gages the cam surface 55 and rotates the bar 50 and the iingers 5| to oscillate the fingers and `to `drawthe engaged envelope `away `from the table 35 to allow passage of this one envelope downwardly. `As the carriage comestofrest against'its stop at its right-hand position, the

feed iingers come to rest in a position to `ieed `the frstenvelope tothe knurled rollers `|2 and .i ,(0

20, the pin 61 on the slide 60 at the back of the lcarriage being properly adjusted for this movement.` The envelopeis then brought t0 typing position by two movements of thelever |0| which rotates the ingoing rollsl2 `and `2|! (and the platen roll 2) simultaneously and with equal pe- `ripheral velocity. Before typing this firstenvelope the carriage is givenan additional movement to` the leftand back to `the rightfagain, to feed the second fenvelope to a position between -the rollers |2` and 2D. The iirst line; usually the name `of the addressee, is`then typed. During this typingithe `typewriter carriage moves back to the left and the feed fingers rise again through action `of the springs` 48.

When the first line of typingis completed the operative moves the envelope to position for typing the second line, usually the street address,

by rotation of the platen roll @by means of the spacing lever 4 in the usual manner. This rotation at the same time moves the second envelope in thefeed rollers I2 and`20 and advances it towards the platen roll. At the same time the operative moves the carriage to the right by pressure on the spacing lever 4 to bring the envelope back to position just under the first letter of the iirst line. As `the carriage is reciprocated by the spacing lever, the feed fingers 5| are again actuated downwardly. `This time, however, inasmuch as the carriage was moved to the right simultaneously with actuation` `of the spacing lever 4 thedetent 85` strikes nose 86a. and the camsurface 93 (Fig. 4) has been moved into the path ofthe cam roll 5`|-and`the fingers 5| as they move downwardly have been oscillated away from the iiap of the third envelope which` is now foremost in the pack `inthe magazine, so'

as not to engage that envelope. p p

After thesecond line of typing has been completedthe operative repeats the rotation of the platen roll and the movement of thef carriage tothe right by theispacer lever 4 to` bring the envelope `to position for typing. the "third line,

. usually the city address. This furtheradvances `the second envelope.

For the same reason as in the first spacing lever operation the said lingers, While moveddownwardly, areprevented from vengaging aiiap of an envelope by reason` of the rotation 1of bar 5D by the cam surface 9,3 and cam lever 56. f Having finishedthe typing of this envelopethe operative pulls the lever |0| forwardlyand` downwardly until it is stopped by the pin |02 engaging the adjusted stop stud 05, which inove-` ment rotates the knurled rollers I2 and 2|)` and the platen roll 2 sufcienty to bring the second envelope to a position on the platen roll` where the name is to be affixed. `The first `envelope which has already beentyped is simultaneously ejected from the platen roll Vafter passing beneath lthe usual auxiliary rolls` |25 and are gripped between the knured rollers 25and l2 i which feed the envelope `upwardly against` the guides 95 which turn` the `envelope over and as it is freed from the rollers itdrops addressside down directly onto the receiving rack 96.`

The operative then returnsthe` carriage to the the carriage to` the right, movement of the spacer lever 4 twice. `In this, `marmer after slightpractice an` operative may very rapidly ing one stroke` of the lever `ll'll, movement of feed'the successive envelopes to the typing position and through the typewriter. If for any reasonlt is necessary to reverse the direction Vof theiplatenroll this `may' be'easily done by `vice is very rapid. and the operative does not need to handle the envelopesduring the entire i operation.

Iclaimi 1. Apparatus for kfeeding material to be printledlna device' having a platen roll on a reciprocating' carriage, comprising feed mechanism actuated Aby reciprocationV of said carriage and rotary elements adapted to receive therebetween material from said mechanism and to intermittently further feed said material to said platen roll, said elements operating synchronously withv rotation of vsaid platen roll and dissociated from operation of said feed mechanism.

2. In envelope feeding apparatus for typea writers l,having a'platen roll on a reciprocating carriage, a magazine for envelopes, means to leed anv envelope from said magazine, said means being actuated by reciprocation of. said carriage, rotary elements adapted'to receive therebetween said envelope from said feeding means and to further feed said envelope to said'platen roll,

said elements reciprocating with'said carriage,

and rotatable synchronously' with rotation of a 3. In combination with.` a typewriter having a "rotatableplaten roll on a reciprocating carriage and having spacing means for rotating said platen roll apredetermined distance in feed direction, rotary elements Vadapted to feed ma-v terial to be printed to said platen roll, said elementsbeing geared to said platen roll, and selective mechanism operatingindependently of said spacing'means to rotate said elements and said platen roll a predetermined distance greater than that caused by said spacing means, to feed material from a position between said rotaryelements to` a predetermined typing position vabout said said platen roll. Y

4. In combination with a typewriter having a f' rotatable platen roll ona reciprocating carriage,

auxiliary rotary elements adapted to feedA material to said platen roll,'said elements operating synchronously with rotation of said platen roll,

selectivemechanism to rotate said elements and platen roll a predetermined distance in feed direction, means to permit rotation of said platen roll and said elements in feed direction independent of said" selective mechanism, and a clutch operative to" allow rotation of said platen roll and elements in either direction independ ent' of said selective mechanism.

5. Apparatus for feeding material to a typewriter havinga rotatableplaten roll on a reciprocating carriagarcomprising a magazine, feed fingers actuated by reciprocation of said carriage and adapted to `feed 'material from said magazine, auxiliary rotaryelement's on said carriage adaptedto lreceive said material from said fingers, `va plurality of ratchet levers and con- 4 necting mechanismfto independently Arotate said platen roll and saidelements simultaneously in feed direction. one of said levers operative to rotate said platen roll and said elements a predetermined distance, another lever operative to rotate said platen roll and saidelements a different predetermined distance, and means operative to permit rotation of said platen roll and elements in either direction without movement of said levers.

6. Apparatus for actuating material in combination with a. typewriter having a rotating platen roll ona reciprocating carriage, comprising a magazine formaterial to be fed, reciprocating feed mechanism actuated by reciprocation of said carriage and adapted to normally feed material fromsaid magazine, rotary elements adapted to receive said material from said feed mechanism, said elements being rotatable synchronously with said platen roll and adapted to feed said material to said platen roll, means to rotate said platen roll in feed direction, including la plurality of levers, one of said levers being operative in one stroke to move said material a predetermined distance to typing position, said other lever simultaneously with rotation of said platen roll actuating mechanism operative to prevent said reciprocating feed' mechanism from feeding material in actuation of the carriage by said other lever.

7. In a feed attachment for typewriters, a magazine for material to be printed, reciprocating fingers normally adapted to feed said material from said magazine and selectivev means operative to prevent said'fingers from feeding material in reclprocation thereof.

8. In combination with a typewriter having a reciprocating carriage, a stationary supply magazine, reciprocating fingers adapted to feed material to be typed from said magazine, said fingers being actuated by reciprocation of saidcarriage, and selective means to reciprocate said carriage While preventing said fingers from feeding said material.

9. Apparatus for feeding material to a type- -writer having a reciprocating carriage, comprising a magazine adapted to contain said material, reciprocating feed mechanism adapted to feed material from said magazine, a reciprocating slide, having an adjustable pin, a lever mechanically connected with said feed mechanism and disposed in the path ofy said reciprocating pin, a fixed element on said carriage, said slide being in the path of said element, whereby said feed mechanism is reciprocated by actuation of said carriage.

10. In apparatusfor feeding material to be printed from a supply to printing position on a platen roll, feed fingers adapted to engage and feed material to be printed, means for supporting said feed fingers adjacent the supply of material, means to reciprocate said supporting means, means for yieldingly urging said fingers into a feeding path contiguous to the material, and selective means to move said fingers into a nonfeeding path relatively remote from said material in actuation of said supporting means.

11. In apparatus for feeding material to a platen roll mounted on areciprocating carriage, a supply magazine, feed fingers adapted to engage and feed material to be printed, means for supporting said feed fingers adjacent said supply, means to reciprocate said fingers, said means being actuated by lateral reciprocation of said carriage, means for yieldingly urging said fingers into a feeding path contiguous to said material, and selective means to move said fingers into a. non-feeding path relatively remote from said material in reciprocation of said fingers.

12; In combination with a typewriter having a reciprocatingcarriage, including a platen roll and mechanism to rotate said platen roll, a supply magazine, reciprocating oscillating ngers adapted to feed material to be typed from said supply, said ngers being actuated by reciprocation of said carriage, and selectivepmeans to oscillate said fingers in reciprocation of said carriage to prevent said fingers from fee-ding said material.

13. In an envelope feeding attachment for a typewriter, a magazine adapted to hold material to be fed, a reciprocating oscillating bar having feed fingers adapted to engage said material, a cam lever mounted on said bar, and a cam surface adapted to be moved into the path of said cam lever and to engage said cam lever as said bar reciprocates to oscillate said bar and said 20 fingers to prevent said fingers from engaging said material.

14. Apparatus for feeding material to a type- Writer having a rotatable platen roll on a reciprocating carriage, comprising a magazine, feed 25 mechanism actuated by reciprocation of said carriage and adapted to feed material from said magazine, a plurality of ratchet levers and connecting mechanismto independently rotate said platen roll in feed direction, one of said levers op- 30 erating to rotate said platen roll a predetermined distance, another lever operating to rotate said platen roll a. different predetermined distance, and means operating to permit rotation of said platen roll in either direction without movement of said levers.

15. Apparatus for actuating material in combination with a typewriter having a rotating platen roll on a. reciprocating carriage, comprising a magazine for material to be fed, feed mechanism actuated by reciprocation of said carriage and adapted to normally feed material from said magazine, means to rotate said platen roll in feed direction, including a plurality of levers. one of said levers being operative in one stroke to move said material a predetermined distance to typing position, said other lever simultaneously with rotation of said platen roll actuating mechanism p operating to prevent said feed mechanism from feeding material in actuation of the carriage by said other lever.

16. In combination with a typewriter having a shaft carrying a rotatable platen roll, a pinion mounted on said platen roll shaft, geared shafts mounted on said typewriter and carrying auxiliary rotary elements adapted to feed material to said platen rol1a driven element mounted on one of said shafts,v a driving element engaging said driven element and adjustably plvoted thereabout to'also engage said pinion, and a lever `to rotate said driving element.

- THOMAS FRENCH.

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