US1228896A - Platen and platen equipment for type-writing machines. - Google Patents

Description

H. A. FOOTHORAP. ILATEN AND PLATEN EQUIPMENT FOR TYPE WRITING MACHINES.

` APPLICATIONFILED FEB.6.1911.

Patented June 5, 19T?.

H. A. FOOTHORAP. PLATEN AND PLATEN EQUIPMENT FOR TYPE WRITING MCHINES.

APPLICATION FILED FEB- 6 19H.`

Patented June 5, 1917.*

5 SHEETS-SHEET 2.

Imm-1nd Wmv 5 III H. A. FooHoRAP,

vPIIATIN AND PLATEN EQUIPMENT FOR TYPE WRITING MACHINES,

19517. 5 SHEETS-SHEET s'.

APPLICATION FILED FEB. 5 I9II.

Patented June v5,

[NVE/WOR,

WJTWESSES .H. AjrooHoRAP.

PTEN AND PLATEN EQUIPMENT FON TYPE VWRITING MACHINES.

` I, APPLICATION msn mm1. 1911.

PatentedJune. 5, 1917.

5 SHEETS-SHEET 4.

l Il nin n *I i fbilimfm 1 1 H. A. ,F.OOTHDIIAPl f PLATEN AND PLATEN EQUIPMENT FOR TYIKE WRITING MACHINES.v

APPLICATION FILED FHL-6,1911. ,8965

Patented June 5, 19T-7.

s SHEETS-SHEET s.

fafma @I MM HABER/Y il. FOOTI-IORAP, FV HARRISBURG, PENNSYLVANIA, ASSIGNOR TO ELLIOTT- FISHER CGMPANY, 0F HARRISBURG, PENNSYLVANIA, A CORPORATION OF DELAWARE.

PLTEN AND PLATEN'EQUIPMENT FOR TYPE-WRITING MACHINES.

masses.

Specification of Letters Patent.

Patented June 5, i917.

Application filed February 6, 1911. Serial No. 606,931.

i To all whom t Moy concern" Beitknown that I` HARRY A. Foo'rHonAP,

a cit'wen of the United States of- America, residing at Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Platens and Platen Equipment for Type-Writing ,Machined of which the following is a specification.

My present lnvention yrelates to a novel.

vplaten equipment for typewriting machines,

and more particularly to a novel arrangement of work holding and impression transferring elementsdesigned-to facilitate certain classes of work performed by what are known as Hat platen typewriting machines.

1n the accompanyingdrawings- I Figurel is a plan view of a flat platen equipped in accordance with my invention.

Fig. lis abottom plan view thereof. Fig. 3 is la longitudmal section on. the

. line 3--8 of Fig. 2 with part of the platen .length broken out.

Figz"L is a detail view partly in section of the tension frame and its support.

Fig 4 is a section on the line l*4 of Fig. 2. Fig. 5 is an enlarged sectional view on the lineof Fig. 2..

Fig. 6 is an enlarged detail sectional view on the line 6-6 of Fig. 2.

Fig. 7 is a perspective view of the platen and its equipment complete with the exception of the machine.

Fig. 8 is a side elevation of both end portions of the platen showing the relation of the parts located at said ends, a portion of the machine being indicated in dotted lines and certain of the parts being shown in dotted lines in. their shifted positions.

Fig. 9 is a detail sectional view on the line 9--9 of Fig. 8.

Fig. l() is a side elevation of a portion of the right hand side of the platen and machine designed niere particularly to show the location and` mounting of the line space tabulator stop.

Fig. 1l is a transverse sectional view on the line 11-11 of Fig. 10.

Fig. 12 is a detail perspective View of the line space stop.

Fig, 18 is a detail perspective view of the line space stop and-fthe line space stop bar,

`machine of commerce.

portions of both being broken away to better illustrate the construction, and

Fig. ,14 is a detail perspective view of one of the machine gibs and a portion of the track or rail with which it coacts.

The Afeatures yto which my invention are directed are designed with special reference to the equipmentf'of what is known as the Elliott-Fisher Writing, adding and billing empliied in patents to R. J. Fisher Nos. 562,625 and 573,868 and includes a flat platen l disposed along the longitudinal.

edges of which'are tracks 2 for the support pf the typewriting machine proper which includes a main frame 3 fragmentarily shown in Figs. 1, 10 and 11 and designed The machine is gibbed to, the rails 2 bygibs 6, as shown'in Figs. 11 and 14. Disposed longitudinally of the platen adjacentV to thev left hand rail 2 are two parallel clamps 7 and 8, the clamp 7 being immediately adjacent to vthe rail and vertically movable to clamp the left hand edge of the base or master sheet 9. The inner clamp 8 lies immediately adjacent to theclamp -7 and is likewise vertically movable to clamp the primary work sheetlO which in different classes of work may be a bill, a departniental order. sheet, etc.

The work sheet 10 is imposed upon the vmaster 4sheet 9 and it is desired in the present instance to transfer onl -a limited amount of data from the sheet l0 to the master sheet, as for instance, the digits included in two columns -of figures. To effect this transference an endless transfer element 11 `which surrounds the platen longitudinally has itsupper run interposed between the right hand margin of the'sheet 10 and the-subjacent portion of the sheet 9, a metallic or other tape I2 carriedV by the This machine is eX- 'pso l i platen being disposed along the right hand edge of the ribbon'and over the right hand edge of the primary work sheet to holdthe latter close'against the platen and thus prevent contact thereof with the machine structure as the latter moves over the platen. The

initial adjustment of the master' sheet 9 isV facilitated by an adjustable top gage in the I form ofgage pins 13 adapted to forman abutment for the upper or rear edge ofthe f sheet and designed to be received in openings y.or sockets 14 arranged in series graduated Vlongitudinally 'of the platen.

The initial adjustment of the upper sheetl() is similarly ei'ected'by means of a top gage in the form ,of pins 15 received in socketsor openings 16 alsoA arranged in series longitudinallyofthey platen.

In the class of work for which the present equipment is specially intended, a series of'entries are made on the master sheet by [transference from eitherrthe same o-r different -primary sheets.

Where Adifferent pri- -mary sheets are in use it is obviously necessary that each new primary sheet be adjust- `ed with reference to the matter which may have been previously printed on the masterv Sheet. Thusvat the initiation of the operation the location ofithe twosheets is determined, las before stated, by the gage pins 13 y yand 15,"but each new primary sheet must obviouslybe dropped or 'advanced the dis;

i tance of at least one line so that the data sheet the.4 inner clamping'bar 8 is provided 'with a series of-'graduations 17 spaced in r correspondence with ,the lines of writing and lserving in connection with the upper edgewill be printed in proper position thereon and will be transferred :below the matter already ,appearing on the master sheet 9. -To lfacilitate this advance of the primary I' l of theshe'et 10 to act asa guide for the .location of the latter.

Before proceeding to describe the details ofconstruction it may be stated that the 1nner clam 8 which holds the upper sheet v10 is designed to be raised to release the primary sheet Wit-lfrconsiderable frequency and independently of the clamp 7 which holds the masterA sheet. Also it is desirable .that 'when the clamp 8is 'i elevated the tape 12 be likewiseraised so as to entirely free the sheet 10 to' facilitate 'its displacement' and its replacementv by another sheet.` In

the arrangement shown this simultaneous raising of what may be termed the primary clamp 8 and the tape is effected automatically by the act of moving the machine back vbeyond the writing area. Furthermore, it

.is desirable that when the outer or secondary clamp 7 is raised to release the master sheet, the ribbon 11 be likewise raised to entirely clear the platen and avoid any interference with the displacement, replacement or adjustinent of .the sheet 9. For this reason the ribbon and the clamp 7 are combined. in an organization which yeffects the simultaneous movement of said.cla1np and ribbon away from the platen'upon the operation of a key 18 located in the present instance .at the 'front left handcorner of the platen. Ob?

viously, however, when it is desired to replace the master sheet 9 theprimary clamp 8 and the tape 12 must Ii'rstbe elevated.

For this reason the secondary clamp 7 and .the ribbon while elevated lby means of the key 18, are locked against such movement as long' as the primary clamp and the' tape remain depressed, but are automatically released whenever the primaryclamp 8 and the tape are-raised. It will be seen, there-l fore, that the means Ifor retaining the pri`l mary sheet on the platen may be operated independently Aof the secondary sheet retain,-y

ing means and ofthe ribbon,` but are so related `to said secondary sheet retaining means and ribbon that the latter cannot be primary sheet is released.

The outer .or secondary clamp is carried at the upper endsof front and rear posts 19 and 2O `passed downwardly through the platen and through bearing blocks 21 attached thereto. These posts are formed with `racks' 23 which engage front and rear pinions'2ft mounted on shafts 25 and 25 jour,- naled Ain the blocks 2l. The shaft ofthe displaced from normal position until the rear pinion 24 is a stub shaft similar to that y shown in Fig. 5,*while the shaft 25 of the front pinion is of considerable length and extends across the' platen, as shown in Fig. 2, for a purpose to be hereinafter described.

Extended longitudinally ofthe platen beneath the Vsaine and passed through the blocks 21 is a comparatively long rack bar A26 toothed for engagement with the pifnions 24 urged in a forward direction by a, spring on the rack bar.

ward left hand corner'of the equipped with :the key 18 'and the opposite end of which is disposed vertically land engages the front end of thev rack bar 26. The spring 27 normally urges the rack bar in' a direction to keep the clamp 7 depressed firmly upon theplaten, but 'upon the depression of the key 18, the'bar 26 is shifted rearwardly thereby rotating the' pinionsA 24;'

which by their engagement with the posts 19 and 20 elevate the latter lto raise the clamp 7 to its released position. To prevent the operation of the .clamp 7 by the key 18' eX- cept when the primary work retaining means is in released position, as heretofore described, a locking leverBl is fulcrumed on a bracket 32 at therear left handgcorner of' ,the platen. Thelocking leverl. is-provided,l

Leashes ai with an angular arm 33 which is normally disposed in position to prevent the rearward movement of the rack bar 2G, but is constantly urged to its bar releasing position shown in dotted lines in F ig. 8 by a spring' 34. Normally, however, the locking arm 31 is held in its obstructing position against the resistance of its spring 34 by a roller projecting through a longitudinal slot 36 in l i clamp 8.

The inner rack bar 38 entends parallel with the bar 26 and passes through bearing blocks 21a similar to the blocks 21 and is urged in a forward direction by a spring 27a similar in construction and mounting to the spring 27. The rack bar 38 is also provided with teeth 39 which engage iront and rear pinions 40 mounted in the blocks 21a in va manner similar to the mounting of' the pinions 24 in their respective blocks. The pinions 40 also mesh with teeth formed in iront and rear posts .41 passed upward through the blocks 210' and through the platen and supporting at their upper ends the primary clamp 8. 3W hen 'the inner rack bar 38 is in normal position, the clamp 8 is held lirinly depressed and the locking lever 31 is held in the manner stated in position to prevent the operation of the secondary 'clamp 7 by the depression oi the key 18.

It is designed to elect the automatic ele-- vation of the primary clamp E and the consequent unlocking of the secondary clamp 7 by the act of moving* the machine to the rear end of the platen. To accomplish these results, a machine-operated lever 42 is ful- 'crumed at its lower end upon the bracket 32 andhas its upper end projected above the platen a sufiicient distance to be engaged by the main frame 3 of the machine when the latter is thrown back to what is known as the machine support located in rear ot the writing surface. At a. point intermediate its ends the lever 42 bears against the roller 35 projecting from the inner rack bar 38, see

Figs. 8 and 9. Thus when the machine is moved back `to the position indicated in dotted, lines in Fig. 8, the lever 42-is swung rearwardly, thus urging the rack bar 38 rearwardly and causing the latter, through the intermedia-te gearing, to elevate the clamp 8. Simultaneous withthis operation, to-wit the release of the primary or upper work sheet,'the roller 35 recedes from the locking lever 31 thus pennitting the spring 34 to swing said lever to the position indicatedin dotted lines in Fig. 8 thus removing the angular obstructing end 33 of said lever from the'path of the outer rack bar 26. Thus the outer rack bar is released by the operation of the primary clamp and may, if

desired, be operated by depression of the key 18 to elevate the outer or secondary clamp 7 It has been stated that the tape- 12 is designed to be raised away from the platen whenever the primary clamp 8 is operated. This tape is attached at its rear end to a tension member 43 in the form of a bell crank lever fulcrumed on the platen l and having one arm connected to the tape and i its opposite arm urged in a direction to exert tension on the tape by a tension spring 44. The front end of the tape 12 is connected to a 'tape carrier 45 located adjacent. to the front end of the platen and comprising `a top plate 45a connecting the upper ends of a pair of posts 46- which pass vertically through the -platen and have their lower.

ends connected by a plate 47. One of the posts 45 is provided with rack teeth 48, see Fig. 3, which mesh with a toothed 'segment 49 carried by a Itransverse shaft 50 at the opposite end of which the front pinion 40 geared to the rack bar 38 is mounted.

lll/'hen the lever 42 isv operated by the machine to shift the rack bar 38 and 'elevate the primary work clamp' 8v the rotation of the pinions 40 will effect the swinging of the segment 47 through the medium of the shaft'50 thus elevating the front tape carrier and raising the tape 12 away from the platen. The distance moved by the tape, however, is considerably greater than that of the clamp 8 by reason of the fact that the radius of the segment 49 which operates the tape carrier is considerably greater than the radius of the pinions 40 which coact with the vertical supports or posts 41 of the clamp. The particular manner of mounting the shafts 25 and 50 is not material, but by reference to Figs. 2 and 3, it will be seen that the ends of said shafts remote from the bearing blocks 21 and 21a are supported by'a bearing bracket 51 depending from the under side of the platen. The ribbon 115 as stated, is designed to be elevated when the secondary clamp 7 is raised. around live rollers shown in Fig. 3 and numbered 52, 53, 54, and 56. The rear roll 52is mounted in a bracket 57 secured to the rear end of the platen. The ribbon 12 passes around the rear side of this roller 52 which is .of comparatively large size and passes thence over the platen, over and around the roller 53, thence in a Vertical direction to and around the roller 54, thence horizontally around the rear side of` the roller 55, thence in an upward direction around thefront side of the roller 56'and thence rearwardly to the roller 53, ccmpletingthe endless circuit of the ribbon. The roller 55'is mounted on ashaft 58 afforded bearings in a bracket 59 dependingr from the .platen somewhat in rear of its front edge and said shaft 58 also supports The ribbon is endless and passes mounted on W at maybe termed a' ribbon carrier frame 63 secured to the opposite ends of a pair of vertical posts 64 and 65 .passed vertically through the platen immediately adjacent to its front end and Vhav- 'ing rack 'teeth 66 for engagement with toothedsegments 67 on the shaft 25.

is depressed the rearward movement of the 'rack bar 26 will not only elevate the secondary work clamp 7, but will also through the medium of thefront pinion 24 rotate the shaft 25 and swing the segments 67 4to elevate the ribbon carrying frame 63 and with it the ribbon 12 to the position indicated in dotted lines in Fig. 3. This will obviousl remove the'upper horizontal run jeo of the ribbon from -the writing surface of the platen, carrying it a somewhat greater ldistance, than that moved by the clamp 7 by reason of the differencein radius of the pinion 24 and the segments 67.

Itgis intended that this operation of the ribbon vcarrying frame shall not only move the ribbon toward and from the writing' surface, but shall also eifect an automatic endwise feed of the ribbon to present unused portions of the latter at the printing point. To this end the specified arrangement of the rollers is augmented by two detents 68 andV '69" in the fovm of p ivoted 'cam's -having knurled.. gripplng faces which coact with knurled disks 71 vfixed to the ribbon guide rollers 54 and 55. The detents 68 and 69 are mounted on the bracket 59 and on the .roller casing 62 respectively, as'shown in Fig. 4, and are urged into engagement with the disk 71 by springs 72. The detents 68 and 69 permit the rotation of the rolls 54 and 55 ina forward or 4clockwise direction, thus opposing no resistance to the rearward -feed of that section of the ribbon lying be-r tween said rolls. Movement of these -rolls 54 and 55 in the reverse direction, however,

is prevented by the detents for a reasonl which will now become apparent.

i It will be seen that when the ribbon carrier 63 is elevated, the upward movement of the roll .54 is in a true vertical direction. Therefore, as the roller 55 remains stationary, both as to bodilytranslation and rotary movement, the distance between the `rollers 54 and 55 will increase, this increase inthe length of the ribbon between these vpoints It' will therefore appear that when the key 18 uring this upward movement of the roller 54 the tendency of the latter will be to rotate in the direction which is vpermitted by the detent 69. When the ribbon carrier 63.l is

dropped back to normalA position, the dis-y tance between the rollers 54 and 55 decreases. Therel is a tendency, therefore, to create slack in the ribbon between these rollers, but this tendency is counteracted iirst by .the detent 69 which prevents reverse rotation bythe vroller 54 and second, by the take-up or` tension device which is drawn forward by the spring 61 to take up the slack which would otherwise be produced, the roller 55 rotating freely in the direction necessary to the taking up of this surplus ribbon between the rollers 54 and 55 It will thus be seen that each operation of the ribbon raising and lowering mechanism will effect an end wise feed of the ribbon-substantially vequal to 'the difference between .the length of that portion of the ribbon lying between the rolls 54 and 55 in the elevated and depressed positions of the roller 54, such feed being in the direction indicated by the arrow in Fig. 3.

It has been explained that successive primary sheets 10 are positioned on the platenby means of the scale .17 on theprimary work clamp 8. It is obvious, however, that the printingmechanism must -likewise be successively positioned in correspondence with the successive positions of the sheets. It is therefore proposed to mount at the right hand Siae of the platen what may be termed a line space tabulator stop bar 73 substantiallyfT-shaped in cross section,

s shown in Fig. 11, and formed at its undbtr side with ratchet teeth 74. Movable longitudinally upon the rackv 7 3 and formed with a T-shaped slot 75 to receivel the same is a line space tabulator stop 76 equipped with a holding device or detent 77 designed to feed between two of the teeth 74 and urged toward its engaging position by a spring 78 seated in the stop 76 and encircling a plunger 79. secured at its lower end to the detent 77 and having at its upper end a head .80

opposed to the upper end of the spring. At

the outer side of the stop 76 is projected a finger piece 81 by means of which the detent 79 may be withdrawn from the teeth 74.0f'

the bar 73 when it is-desired to shift the stop to a new position.

To facilitate the proper positioning of the stop 76 the upper face of the bar 73 is provided with a scale or graduations 82 corresponding as to spacing with the graduations on the clampv 8. At the initiation -o'f the operation the sheets 9 and 10 are positioned by means of the top gages 13 and 15 and the stop 76 is properly positioned to arrest the machine with its printing point properly disposed with reference to the primary sheet ,10, it being observed that when the machine is drawnforward a portion of its structure, as for instance one of the gibs 6, contacts with the stop .76. When the next primary sheet is adjusted 'in an advanced position by means of the scale 17 and the clamp 8', the stop 7 6 is correspondingly advanced and retained upon the bar 7 3. No attention need be paid thereafter to the positioning of the machine which is simply drawn forward until arrested by the stop, and the printing operation resumed.

What I claim is l 1. The combination with a platen and an endless transfer web, of relatively movable 'guides for said web, and means for effecting rela-tive bodily movement of ther guides to feed the web. 1

2. The combination with a platen, of an endless transfer web,means for moving a portion only of said web toward and away from the platen, and means whereby such movement of the web will effect alongitudinal feed thereof. A

3. The combination with a platen, of an endless transfer web inclosing the platen,

means for guiding a portion of said web in a vsubstantially straight path, and means for swinging said substantially straight portion of the web toward and from the platen.

4. The combination with a platen, of an endless transfer web and guides for said web, one of said guides being movable to move a portion` of the web ltoward and from the writing surface of the laten.

5. The combination wit a platen, of an endless transfer web inclosing the platen,

a plurality of guides for the web, and means for effecting relative movement of the guides to move a portion of the web toward and from the platen and to eect a longitudinal feed'of saidweb.

6. The combination with a flat platen of a transfer web extended over the same, front and rear carriers for said transfer web, one

. of said carriers being movable to vary the distance between the carriersand to move said web relative to the writing surface of the platen in a direction lateral to the web,

and means cooperating with the carriers to 'effect an' endwise feed of the web during the lateral movement thereof.

7 .1The combination with a flat platen, of an endless transfer web inclosing the platen, front-and rear guides 'for the transfer web, said guides being relativelymovable to shift the web toward and from the writing surface of thc-platen, and means cooperating with the guides to effect a longitudinal feed of the web during the said shifting` thereof.

8. The combination with a platen, of an endless transfer web, guides for said web, and a tension'device, certain of said guides being relatively movable and coacting with the web and the tension device to edect a. longitudinal feed of the web.

9. The combination with a flat platemof an endless transfer web, front and rear carriers for said web, said front carrier being vertically movable, a relatively'stationaiy guide engaging the web at a point intermediate of theJ front and rear carriers, and a tension device for the web.

an .endless transfer web, a rear guide .for the'web, a vertically movable web carrying vframe, rollers carried by said frame and serving toguide the web, a guide engaging the web at a point intermediate of the rear guide and the front web carrying frame, and

take-up or tension device engaging the web and holding the same taut under all conditions.

11. The combination with a platen and an endless transfer web, of guiding means for the web includinor a pair vof guides relaw tively movable to effect an increase of the length of web extending between the same and movable back to normal position to dee crease the distance between said guides and thus create a surplus of material, and means` including a key for moving the 'transfer' Q7 5 l0. The combination with a flat platen, of

web toward and from the platen, and means p' controlling the operation of the key.

14. The combination with a platen, of a transfer web disposed opposite said` platen and movable towardV and from the same, and

means for effecting both a 'longitudinal feed 0f the web and the movement of the web toy* ward and from the platen.

15. The combinationwith a platen, of a transfer web, and means including a ke for eiecting a longitudinal feed of the we .and for moving-said web toward and from the platen.

16. The combination with a platen, of an endless transfer web, means for guidinr4 a section of said web opposite ythe writing surface of the platen, and means for mov,- ing said web section toward and from the writing surface.

17. The combination with a platen, of an endless transfer web, guiding means retaining a section of said web opposite the writking surface of the platen, and means coacting with said guiding means to permit the movement of said web section toward and from the writing surface and to cause such movement of the web section to effect a longitudinal .feed of the web.

18. The combination with a platen and a longitudinally movable transfer web, of

means for guiding such movement of the v web, and a key coacting with the guiding means to'move the web.

19..The combination with a platen and a longitudinally movable transfer web, of means for guiding theweb in such/movement, and a key coacting with the guiding means to move lthe web toward and from the platen. 1 20. The combination with 'a platen and' a transfer web, ofguidingmeans for the web, and a key coacting withthe guiding means to move the web longitudinally;

2l. The combination with a platen andv 'a transfer web, of guiding means for the web, and a key coacting' with the guiding means to move the web toward and from the platen and to effect a longitudinal feed of the web.

22. The combination with a fiat platen, of a transfer web, means including a key .for moving the web both laterally and longitudinally, and a lock for said key.

23. The combination with the relatively l movable frame and platen of a typewriting machine, -of a'transfer web, means for moving the web,.and a lock for 'said means, saidlock being constructed and .arranged to be operated by the relative movement of the frame and platen.

2li. The combination with a typewriting machine including a frame' and platenv one of which elements is movable relative to the other, of a transfer'web, meansffor mov ing saidweb, and a lock for said means,

typewritng 26. The combination with a typewriter including a frame and platen one of which elements is: movable relative to the other,

"surface of the platen, a

transfer web away from of a transfer web, means for moving the.

transfer web away from the` platen, and. a

lock for said means, said ,lock being disposed for operation by the movable element of the typewriter. v

y 27. The combination with a platen, of 'a transfer web disposed o posite the writing hey for moving the ,the writing surface, a lock for said key, and a machine frame movable relative to the platen'and cooperating with t'helock.

28. The combinatiowith' a platen, of a transfer web land a work clam both of which are movable 'relative to' t e platen,

and means for establishing an interdependent relation between the clamp and. web.

29. The combination with a platen, of a transfer web and a work clamp dlsposed opposite the platen, andmeans 4for moving l both the clamp and the web relative tothe platen.

30. The combination. with 'a platen, of a transfer .web and a work clamp disposed opposite the platen, and means for moving, both the clamp and the web relative to the platen,said' means including a finger key.

f 31. rlhe combination with a'pla'ten, of 'a' transfer web and a work clamp opposite the platen in parallel and laterally spaced relaA tion, and means fogI moving both the clampand the transfer web away from the platen. 32. The combination with a platen, of a 'transfer web and a work clamp opposite sof the platen, and means for-'moving both the clamp and the transfer web away from the platen land for effecting. the longitudinal .feed of the web.

33. The combination with a platen, of la work clamp and a transfenv'veb disposed opposite said platen, and means including a linger key for moving both the clamp andy the web .away from the platen.

34, The combination with' a. platen, "of a work clamp and a transfer web disposed. opposite thereto, both the clamp and the web being movable toward and from the 'l platen, and reactive means for both the clainp and web lto normakpo'sition when dis sliced therefrom. f

carte @nte-tation with a platen, -of a 'work clanip and' ai ifansfer web 'd' opposite the same, means including a. key for moving both the clamp and the web osed ger aos away from the platen, and reactive means for returning' both the clamp and web to -H0rmal position. I

36. The combination with a' platen, ofa I ,Work clamp and a'. transfer'webdisposed.

opposite the platen, means for moving both the clamp and the web away from the platen, and a lock for said means.'V

37. The combination with-a. platen, of a work' clamp and a transfer webv disposed opposite the platen, meansincluding a iinger key for moving both'the clamp and the web away from the platen, and a' lock for the key.

38. The combination with a `typewriting machine including a frame and platen, one of which elements is movable relatively Ato the other, a work clamp and a transfer web disposed opposite the platen, means for movingfbothf'the clamp and thewebl'e'laof' which elements is movable relative to the other, a .Work clamp and a transfer Web disposed opposite the platen, means inoluding a finger key for4 moving both the clamp and the Web 'relative to the platen, and a look for said means constructed and are ranged for release by the movable element of the typewriter.

l10.".l`he combination with a platen, of primary and secondary Work clamps disposed thereover to retain primary and seoondary Work sheets, a transfer element disposed over the platen to transfer the record from one sheet to the other, and a tape disposed over the transfer element'lto guard one of the sheets.

41. The combination with a platen, of

.tivo separately movable work Clamps adaptf ed to retain Work sheets, a transfer element coasting rsvitliftlie Work sheets and movable with one Work clamp, and a flexible Werl: guarding tape movable with the other clamp. 4

42. The combination with a flat platen,

of a transfer elementA disposed thereover,' van inflexible Work clamp `extended along' one edge of the platen., ,means 'for elevating both the work clamp and the transfer inem-i ber and vmeans 'including a part extended above the platen for controlling the elevation of the Clamp and transfer element.

In testimony 'whereof l aliiX-my signature in presence of two Witnesses.

HARRY A. FOOTHGR. Witnesses z J. H. CULvr-JRWELL, l. M. PARKER,

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