US1536586A - Typewriting machine - Google Patents

Description

May 5, 1925.

A. A. JOHNSON TYPEWRITING MACHINE Filed Jan. 30. 1923 2 Sheets-Sheet l May 5, 1925.

A. A. JOHNSON TYPEWRITING MACHINE Filed Jan. 30. 1923 2 Sheets-Sheet 2 Patented May 5, 19 25.

UNITED STATES PATENT orrlcs.

ARTHUR A. JOHIITSON, 0F NEW YORK, 11'. Y., ASSIGNOR TO UNDERWOOD TYPEWRITEB,

v comm, or New YORK, N. Y.,

.A CORPORATION or- DELAWARE I TYPEWRITING MACHINE Application filed January so, 1923. Serial mi. 615,846.

To all whom it may concern."

Be it known that I, ARTHUR A. JOHNSON, a citizen of the United States, residing in the borough of the Bronx, in the county of the Bronx, city and State of New York, have invented certain new and useful Improvement-s in Typewriting Machines, of which'the following is a specification. I

The invention relates to typewriting machines. .More particularly, the invention 'relates to so-called billing machines in which provision is made for feeding a succession of bill-forms or form-sections'in a continuous web, and in a plurality of plies, ordinarily fan-folded, through a carbon-carrier, for interleavelnent of carbon-sheets with the web-plies; and in which the carbon-carrier, on a table attached to the platen-carriage at the rear. of the latter, has line-feed movement with the web toward the platen, and has movement rearward on the table for clearing carbons of the leading or written form-sections and for bringing them into interleavement with succeeding form-sections, at the completion of the writing on the leading form-section. A machine of this general class is shown in United States Letters Patent to ernery '& Smith, No. 1,132,055, dated March 16, 1915. In the machine therein shown, the platen-carriage is:

also provided, above the printing line, with a delivery table and gagelarm or extension thereon for receiving the leading or typewritten form-section of the web and for locating the leading edge thereof prelim inary to severance of such leading 'formsection fromthejrest of the web; and the platen is on a- .frame which'may be swung by and with such gage and delivery table to a position in whichthe grip of the usual feed-rolls on the web and the carbons is released, and the web straightened, to permit rearward movement of the carbon-carrier while the web-plies are held pinched to the gage; a knifeedge being provided, against which the web maybe drawn for severing the leading form-section therefrom, after the web, adjusted by means of the gage, has been swung back with the platen to writing position and again clamped against the platen by the feed-rolls.

An object of the. present invention is the provision of means for reliably and auto-.

matically finding and determining the adjustments, or forward settings, of the web for removal of the leading lengths or typewritten form-sections thereof, not only as concerns the web as a whole, but as concerns each ply thereof (so that, when the plies are ,separate sheets, the efiect of creeping of one :on the other is corrected 'on each adjust- ,ment) the same being positionable so as not to obstruct theview or movements of the operator, and so as not to be susceptible to injury; and being of simple construction, compactly set withfrespect to the delivery table and other parts.

In the embodiment of the invention hereinafter sl1own, the gaging device comprises 70 pins mounted on the platen-frame, behind the delivery table, and means for effecting a reciprocatory movement of the pins; first to project the same through the table and against the web, so that, on forward move ment of the web, in the web-releasing position of-the platen, the pins may find and enter openings in the web, to arrest the latter incorrect position; and so that, upon removal of the leadingform-sec-tion, on return of the platen to writing poition, the pins may be withdrawn rearward, outof the path of the web on the table to permit of unobstructed line-space feed of the web over the table.

An object of the invention is the provision of means for effecting, automatically, the rearward movement, or withdrawal, of the pins, upon return of the platen to the writing position; but preferably not until after the feed-rolls have re-engaged the platen to hold the readjusted web thereto, and to hold the web while the leading form-section is removed by drawing the web across the usual knife-blade, or otherwise. In the preferred embodiment of the invention, the movement of the latch, which is ordinarily present, automatically to lock the platen-frame in -writing position, is utilized to withdraw the pins from the web. A feature of the invention maybe the automatic throw of the pins, through the table,

and against the web, upon unlocking ofthe platen-frame for movement of the latter to web-releasing and readjusting position. I

If, however, as in the lVernery & Smitl. structure, referred to, there is to be a shif of carbons lengthwise of the web, to clea; the same of the lea'dingform section of thi web, it is preferable to delay the movement of the pins to the web until after such carbon-shift has been effected: otherwise, the

pins by pressing on the web during the shift,

may smudge the plies thereof.

An object of the invention is the provision of means whereby, if desired, the throw of the pins to the web may be delayed until the leading form-section of the web, in the web-releasing position of the platen, has been cleared of carbons; and may, at will, at any time be effected.

A feature of the invention is a zone-positioning of the pins with respect to the web and carbons, such that the carbons leave the zone of the pins when shifted rearward by the carbon-carrier, leaving the forward edges of the web-plies in accessible position, forward of the pin-zone, so that the pins may then be set against the web, and the latter drawn forward, until the pins enter the holes therein, while the carbons are held back, away from the pins, by the carboncarrier. Preferably the holes, by means of which, in each instance, the web is gaged, are located in the front portion of the form-section next following the leading or typewritten form-section.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a top plan view of the platencarriage of a fan-fold machine equipped with the present invention.

Figure 2 shows the forward portion of a web.

Figure 3 is a view, in cross-section, side elevation, taken on the line 3-3 of Figure 1; the parts beingin position for writing; and the carbon-table, and carbon-carrier thereon, being shown.

Figure 4. is a view of the platen and other parts on the swinging platen-frame, shown in carbon-releasing position, withthe gagepins held by the lock-latch in ineffective position, so as to permit rearward movement of the carbons with the carbon-carrier without pressure of the gage-pins thereon.

Figure 5 is a view similar to Figure 1, except that the lock-latch has been released to permit the gage-pins to bear upon the web, so that, when the latter is subsequently drawn forward, the gage-pins may find the gage-holes in the web.

Figure 6 is a view similar to Figure 5, except that the web has been drawn forward and the gage-pins have found and entered the gage-holes therein.

Figure 7 is a view, in side elevation, of the parts shown in Figure 1, showing the lock for the swinging frame just engaging the arm for withdrawing the pins from the web as the lock is snapping into Figure 3 position.

Referring to the drawings, the web, shown in several plies, 10, 10 and 10, is led upward from a suitable holder (not shown) over a rod llsupported on brackets 12 on the rear of a c'arbon-carrier-table 13. Fingers 14 on the rod 11 serve as guards for guiding the side edges of the web. From the rod 11, the web is led forward to the carbon-carrier. The carbon-carrier consists of a plate 15 slidably mounted on rails 16 on the table 1.3, to have line-space movement forward with the platen and to have rearward movement for drawing the carbons rearward from one to another form section of the web.

This carbon-carrier may be of the style shown in United States Letters Patent to Wernery & Smith, No. 1,132,055, dated March 16, 1915. In that patent, the carboncarrier is shown as adapted for use in connection with a fan-fold web and as having a block 17 on each endof the plate 15. The

blocks 17 are stepped, and blades 18 are secured at one end to the steps and project between the folds or plies of the web. The blades on one block are alternate or staggered with respect to those on the other block, and project from opposite directions into the folds of the Web. To each blade 18, the rear edge of one of the carbon-sheets 19 is secured. A rail or cross-piece 20 defines the forward edge of the carbon-carriertable, and the table is supported in ears 21 on brackets 22 secured to the usual rear cross-piece 23 of the platen-carriage, so as to have movement in letter feed and return directions with the latter. The rear of the carbon-carrier-t-able 13 may be supported on a rail or runway (not shown). From the carbon-carrier, the web plies with the interleaved carbons are led forward over a shaft 24:, which is carried by the side plates 25 of the platen-carriage. Fingers 26 on the shaft 24 serve as guards to guide the side edges of the web. The platen-carriage has the usual paper-table and apron 27 for guiding the web down under and around to the front of the platen between the latter and the front and rear pressure feed-rolls 28 and 29, respectively. These rolls are ordinarily carried by the table and apron 27.

The platen 30 is journaled in side plates 31 of a frame adapted to be swung between the Figure 3 or writing position and the Figure 4 or carbon-releasing position. A shaft 32 journaled in the side plates 25 of the platen-carriage serves as the axis around which the platen-frame swings, and the side plates 31 of the platen-frame are provided with bearing pieces 33 for free rotation on, and'with respect to, the shaft 32. Fingers or extensions 34; on the side plates 31 of the swinging frame, by engagement with the shaft 24, support the swinging frame at its rear in the Figure 3 writing position. Hooks 35 serve to lock the swinging frame hooks are then snapped into locking position by C011 springs 38 on thesh aft 24. Each 7 oflthese springs, as shown-in Figure 1, is attached-at one end to the platen-carriage and at the other end to a collar 39 fast to the shaft '24; and they press the hooks in a for-' ward direction, for automatic locking of the platen-frame, and. for maintaining the 40, forming an' upw ard extensio shown), rotated by means of a pawl platen-frame in locked position. A finger of the left-hand hook 35, carries a finger-piece 41 by means of which the hooks may be swung rearward to disengage the same from the pins 37, when the platen-frame is to be swung fromFigure 3'to Figure 4 position.

Fixedly mounted on the swinging platenframe is paper-table .42 for receiving the leading form section of the'web' after the same has been fed upward from the apron 27, and across and beyond the qprinting point at the front of the platen.

platen-frame over the table 42, and extend-' cecured to the ing from one to the other side of the platenframe, is a knife or blade 43 by means of which the leading or written form section of the web may be severed from the rest of the web, as the work proceeds. 'In the linespace inovenient of the web plies and interleaved carbons, durlng the writlng, on the leading form, the web and, carbons are fed upward and rearward over the table 42 between the latter and the knife 43. The front table 42 and the knife 43 being fast to the platen-frame participate in the movement of the latter around its ivot 32 and assume the position shown in the platen is thrown up from the feed-rolls to permitthe written or leading form section to be cleared of the carbons by rearward movement of the carbon-carrier.

For turning the platen in letter feed and reverse directions, the axle 44 thereof, which is journaled in the .side plates 31 of the swinging frame, has fixed at each end thereof a pinion 45. Each. inion 45 meshes with a pinion 46 on the "sha t 32, and each pinion .46 also meshes with a pinion 4'i'.- 'The pinions 47 are fast to stub shafts 48 jour,-'

naled in the side plates 25 of the carriage.

On the ends of the shafts 48' are the usual also the usual line-space ratchet-wheel not shown), on a slide 5Q, mountedfor rearward igures 4 to 6 when.

' not and forward movement in the left hand carriage plate 25. A bell-crank line-space lever 51, pivoted at 52 to the carriage, engages the forward end of the slide 50 to force the came backward for effecting linespace feed of the platen. A spring (not shown) returns the slide 50 and line-space lever 51 tonormal position. Since the pinions 46 are on the axis around which the platen-frame swings, and are therefore al- 1 ways in mesh with the pinions 47, the platen may be turned by the knobs 49, and linespace mechanism, in the carbon-releasing position of the platen-frame, as well as in the writing position thereof.

Pins 53, which, by entering holes 54 in the web plies, serve as gages to determine the position to which the leading form section should be drawn for severance from the rest of the web, are normally located behind the front table 42. In registration with the pins 53, of which there are two, one to each side of the center of the platen, there are openings 55 in the table 42, and openings 56 in the knife or blade 43. The pins may therefore be forced through the ,fronttable 42 and against the web; and,

when in registration with the openings 54 in the web, through the web openings and through the openings 56 in the blade. The blade thus serves to support theweb against the pins, and as a guard to guide the pins and to hold the same against: displacement.

Each of the pins 53 'is carried on the free end of a leaf-spring 57. These springs at their other ends are looped or folded, and

are secured by rivets 58 to the back of the paper-table 42. The set of the springs is such as to tend to throwthe pins 53 through the openings 55 in thepaper-table. Arms 59, fastto a rock-shaft 60, however, carry. at their free ends pins 61, which, by'engagement with the frontfaces of the springs, hold the springs back, with the pins 53 behind the table 42; and move the springs back to withdraw the pins 53 from the web and from the table 42 at the proper time.

The rock-shaft 60 is journaled at its ends,

see; Figure -1,' in the side plates 31 of the swinging frame; and, to effect such rotary movement thereof as may be necessary to withdraw the pins 53 from the web and table 42, the rock-shaft at its left-hand end has fast thereto an arm 62. The free end of this arm carries a pin 63 which projects laterally crosswise of the forward edge of the left-hand hook 35. When this hook jumps forward at the time the' swinging frame reaches its writing position (with the extensions 34 thereof on the shaft 24), the

arm 62 is thrown forward, rocking the shaft 60 and the arms 59, to cause thepins 61 on the latter to withdraw the gage-pins 53 from the web and paperat-able. The noseof the hook 35 where it engages the pin 63 is rounded, so that the pin 63 will slide along the edge of the hook as the hook and arm 62 have their respective movements to withdraw the gage-pins.

Rear'ward movement of the hooks 35 to unlock the platen-frame, so that the same may be swung with the platen and other elements thereon from Figure 3 to Figure 4 position, will release the springs 57 and thus result in immediate projection of the gagepins 53 through the openings 55 in the front table, and into engagement with the rear face of the web, unless provision to the contrary is made. As will presently more fully appear, it is not always desirable to have the springs 57 released at this time; and to prevent such immediate release of the springs 57, a latch is provided. This latch comprises an arm 64, pivoted at 65 to the left-hand side, plate 31 of the swinging frame, and having on its forward end a finger-piece 66 by means of which it may be rocked. The latch-arm carries a pin 67, which projects laterally therefrom for engagement with the nose 68 of a hook 69 forming a crooked arm fast to the rockshaft 60. So long as the nose 68 of the hook (39 is caught over the pin 67 on the latcharm, movement of the shaft 60 and release of the springs 57 is prevented regardless of the release of the arm- 62.by the hook Normally, as shown in Figures 3 and 4, the hook 69 is held by the pin 67 on the latch to prevent release of the springs 57. At the proper time, however, the latch by means of its finger-piece 66 may be swung to release the hook 69; whereupon the springs 57 throw the gage-pins 53 through the openings in the front table.

A coil spring 70 secured at one end to a pin 71 on the latch and at its other end to a pin 72 on the left-hand side plate 31 of the swinging frame is under tension to hold latch-arm 64 with its pin 67 under thenose of the hook 69. then the latch-arm is swung up to withdraw the pin 67 from the hook 69, the coil spring 70 swings across the axis 65 on which the latch-arm is pivoted, and then acts to hold the latch-arm jzn its ineffective position against a stop-pin In operation, as the typewriting is effected on the plies of the leading form section of the web, these plies, with the carbons iuterlcay'ed therewith, feed upward, as hereinhefore noted, over the front table 42 between the same and the knife blade 43. At this time, the hook 35 holds the arm 62, rock-shaft 60, and arms 59 against the action of the springs 57, and holds the latter with the gage-pins 53 withdrawn, so that the gage-pins do not touch the web. At this time also, the latch 64 is in engagement with the hook 69 on the rock-shaft 60,' so that,

regardless of the action of the hook 35 on the arm 62, no release of the springs 57 to project the gage-pins through the front paper-table can take place. The writing on the leading form section having been completed, the hooks 35 are thrown rearward to release the platen-frame, and the operator swings the frame upward and forward around its pivot 32 until the frame comes to rest in the Figure 4 position; thus releasing the web and carbons from the pressure feed-rolls 28 and 29 and permitting the web and carbons to assume a substantially straightened position. In this position, the carbons, in interleaVe-ment with the web plies, extend forward of the position occupied by the gage-pins 53, so that the gagepins would press upon them, except that they are held back by the latch 64. The carbon-carrier is now moved rearward drawing with it the carbons and that portion of the web forward of the carboncarrier.

This movement of the carbons causes the leading edges of the same to pass rearward of the position occupied by the gage-pins 53. The leading edges of the web plies, with which the carbons are interleaved, however, being somewhat in advance of the leading edges of the carbons, are not brought rearward of the position occupied by the gage-pins 53, when the carbon-carrier is moved rearward, and consequently may be engaged by the fingers forward of the gage-pins 53. The latch-arm 64 is now thrown to release the hook 69 from the pin 67, and the springs 57 thereupon throw the gage-pins through the openings 54 and against the web at a point where there is no interleavement of the carbons therewith, as shown in Figure 5. With the springs 57 exerting a resilient pressure on the web, and while the carbon-carrier is held by one hand in its rearward position, the operator with his other hand seizes the forward end of the web and draws the same forward. This forward movement is continued until the holes 54 in the form section next following the leading form section reach the gagepins. The gage-pins thereupon spring through the openings 54 in the second form section and through the openings 56 in the knife blade, as shown in Figure 6, indicating the correct position of the web for removal of the leading form section thereof.

\Vith the gage-pins 53 thus interlocked with the web, as shown in Figure 7, the operator swingsthe platen-frame back toward its normal or Figure 3 position. When the platen-frame reaches its'writing position, the pins 37 clear the noses of the hooks 35, permitting the latter to spring forward under the action of their springs 38. In Figure 7, the hooks 35 are shown as in the act of thus springing forward; the noses of the gagepins from'the web. At this time, however, the web is held by the pressure rolls 28 and 29, and the operator, then drawing the typewritten plies of the leading form section against the cutting edge of the knife 43, severs the same from the rest ofthe web.

It will be noted from the foregoing that the web is not released by the gage-pins until the same is held against displacement by the pressure rolls, and thatthe release of the web by the gage-pins-is automatically efiected at the desired time; that is to say,

at the time the web is engaged by the pres-- sure rolls. It will also be noted that the gage-pins never bear against the carbons and so cannot makecarbon impressions on the web plies. Otherwise, and if the carbons lay under the gage-pins, and the gagepins were pressing against the same at the time of rearward movement-of the carboncarrier, streaks or smudges might be made on the plies with which the carbons were interleaved.

Variations may be resorted to within the scope of the invention, and portions of. the improvements may be used without others.

Having thus described my invention, I claim: l

1. In a typewriting machine, a rotary platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, pins adapted to be pressed against the web to find and enter openings thereinfor gaging the position of the web for removal therefrom of its leading lengths or typewritten form-sections, and means for automatically withdrawing the pins from the web on return of the platen-frame to the writing station. a

2. In a typewriting machine, a rotary platen, means for feeding amultiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon=releasing station, a latch for automatically locking the frame in the writing station, pins adapted to be pressed a ainst. the web to find and enter openings therein for gaging the position of the web for removal therefrom of its leading lengths I or typewritten form,-

sections, and means, actuated by the latch, for automatically withdrawin the pins from the web on return of the p aten-frame to the writing station. 3. In a typewriting machine," a rotary.

platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, pins adapted to be pressed against the web to find and enter openings therein for gaging theposition of the web for removal therefrom' of its leading lengths or type written form-sections, a rocker on the platenframe for withdrawing the pins from the web, and means engageable with the rocker, in the writing station of the platen-frame, for automatically actuating the rocker to withdraw the pins on return of the frame to the writing station.

4. In a typewriting machine, a rotary platen, ineans for feeding a multiple-ply, continuous webfwith interleaved carbons,

to and around the platen, a frame for the.

platen movable with the platen between a. writing station and a carbon-releasing station, pins adapted to be pressed against the web to find and enter openings therein for gaging the position of the-web for removal therefrom of its leading lengths or typewritten form-sections, springs on which the pins are carried and by meansof which the pins are pressed'to the web, and a rocker for forcing back the springs to withdraw the pins from the web.

5. In a typewriting machine, a rotary platen, means for feedin continuous web, with inter eaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a" carbon-releasing station, a table on the movable platen-frame a multiple-ply, v

for receiving the leading lengths or typewritten portlons ofthe web, and pins supported behind the table and adapted to be pressed, through 0 enings in the table,

against the web, to nd and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof.

6. In a typewriting machine, a rotary platen, means for feeding a multiple-ply,

continuous web, with interleaved carbons, to

to therear of the table, and pins, supported on the springs, to be pressed, through openings in the table, against the web, to find and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof.

7. In a typewriting machine, a rotary platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, a table on the movable platen-frame for receiving the leading lengths or typewritten portions of the web, springs secured to the rear of the table, pins, supported on the springs, to be rossed, through openings in the table, against the web, to find and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof, a rock-shaft on the platen-frame behind the table, fingers on the rook-shaft for en gagement with the springs to force the latter rearward to withdraw the pins from the web, and means for actuating the rock-shaft.

8. In a typewriting machine, a rotary platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing "station and a carbon-releasing station, a table on the movable platen-frame for receiving the leading lengths or typewritten portions of the web, springs secured to the rear of the table, pins, supported on the springs, to be pressed, through openings in the table, against the web, to find and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof, a rock-shaft on the platen-frame behind the table,.fingers on the rock-shaft for en'- gagement with the springs to force the latter rearward to withdraw the pins from the web, and means for automatically turning the rock-shaft to withdraw the pins upon 'return of the platen-frame to the writing station.

9. In a typewriting machine, a rotary platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the laten, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, a table on the movable platen-frame for 1 receiving the leading lengths or typewritten portions of the web, springs secured to the rear of the table, pins supported on the springs to be pressed, through openings in the table, against the web, to find and enteropenings in the web for gaging the position of the web for removal therefrom of the leading ortion or form-section thereof, a rock-sha t on the platen-frame behind the table, fingers on the rock-shaft for engagement with the springs to force the latter rearward to withdraw the pins from the web, a latch co-operating with the rock-shaft to lock the same against the action of the springs, With the pins withdrawn from the web, during the movement of the platenframe to carbon-releasing station, and means for releasing the latch.

10. In a typewriting machine, a rotary platen, means for feeding mmultiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, a carbon-carrier adapted to have linefeed movement with the web toward the platen when the latter is in the writing station, and to be moved in the opposite di rection for shifting the carbons along the web from the leading, typewritten lengths or form-sections thereof, when the platen is in the carbon-releasing station, pins adapted to be pressed against the web to find and enter openings therein for gaging the position to which the web is to be advanced for removal of the leading lengths or typewritten form-sections after the latter have been cleared of the carbons, springs for effecting the pressure of the pins on the web, means for holding the pins from the Web, against the action of the springs, and means for releasing said holding means when the shift of the carbon-carrier has cleared the carbons from the pin-zone.

11. In atypewriting machine, a rotary platen, means for feeding a multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a Writing station and a caioon-releasing station, a table on the movable platen-frame for receiving the leading lengths or typewritten portions of the web, pins supported behind the table and adapted to be pressed, through openings in the table, against the web, to find and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof, and a guard for supporting the web against the pressure of the pins, the guard having openings therein to receive the pins.

12. In a typewriting machine, a rotary platen, means for feeding a -multiple-ply, continuous web, with interleaved carbons, to and around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, a table on the movable platen-frame for receiving the leading lengths or typewritten portions of the web, pins supported behlnd the table and adapted to be pressed, through openings in the table, against the web, to find and enter openings in the web for gaging the position of the web for removal therefrom of the leading portion or form-section thereof, and a websevering knife forming a guard for supportreceive the pins.

13. In a typewriting machine having a rotary platen and rolls running thereon to feed a multiple-ply web with interleaved carbons, the platen being movable away from the rolls to carbon-releasing station, re-registering pins, means for pressing the pins against the web to find and enter registering openings therein, and means operating automatically to withdraw the pins from the web upon the platen being returned to co-operate with the istered web. ,7

14. In a typewriting machine having a rotary platen and rolls running thereon to feed a multiple-ply web with interleaved carbons, the platen being movable away from the rolls to carbon-releasing station, re-registering pins, means for pressing the pins against the web to find and enter registering openings therein, means operating automatically to withdraw the pins from the web upon the platen being returned to co-operate with the rolls to hold the re-reg-.

istered web, and. manually-operable means for controlling the springs to'hold the pins away from the Web when theplaten is at the carbon-releasing station.

15. In a typewriting machine, a platen, pins to enter holes in the paper to gage the position of the paper on the platen, springs on which the pins are supported and by means of which the ins are thrown to the paper, a rock-shaft, gers on the rockshaft between the sprin andthe ath of the paper for moving t e springs aek to withdraw the pins from the paper and for holding the pins free of the paper, a stoparm on the rock-shaft, and a latch pivoted rolls to hold the re-reg-.

to swing into the path of the stop-arm to lock the rock-shaft with'the pins free of the paper.

, 16. In a typewriting machine, a platen, pins to enter holes in the paper to gage the position of the paper on the platen, springs on which the pins are supported and by -meansof which the pins are thrown to the paper, a rock-shaft, fingers on the rock-shaft between the springs and the'path of the paper for moving the springs back to withdraw the ins from the paper and for holding the pins free of the paper, a stop-arm on the rock-shaft, a latch pivoted to swing into the path of the stop-arm to lock the rock-shaft with the pins free ofthe paper, a frame movable with the platen from typewriting position to a paper-releasing position, means for locking the frame in typewriting-position, and an arm'on the rockshaft engaged by the frame-locking means to withdraw the pins fromthe paper when the frame is so locked.

17. In a typewriting machine, a rotary platen, means for feeding a multiple-ply,

continuous web, with interleaved carbons, to arid around the platen, a frame for the platen movable with the platen between a writing station and a carbon-releasing station, and pins having connection with said frame and adapted to be pressed J against the web to find and enter 0 nings in the form-section next succeeding t e leading form-section, for gagin the position of the web for removal there rom of its leading lengths or typewritten form-sections.

ARTHUR A. JOHNSON.

Witnesses:

- EDITH B. LIBBEY,

JENm P. Tnom.

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