US1467940A - Typewriting machine - Google Patents

Description

sew. 11, W23, mamgm A. G. F. KURQWSKE TYPEWRITING MACHINE Filed Occ. 2, 1919 4 Sheets-Sheet 2 lnvewfor: Wa ymm' Sept H 1923., HAAW Q W A. s. F. KURQWSKB TYPEWRITINGVMKCHINE F11ed 0- h2 11919 4 Sheets-Sheet s //7 van far.- W WWW/6 Affomey Patented Sept. til, H923.

mate oar are ira e at.

ALFRED G. E. KUROWSKI, OF BROOKLYN, NEW YORK, ASSIGNOR I O UNDERWOOD TYPE'WRITER COMPANY, OF NEW YORK, N..Y., A CORPORATION OF DELAWARE.

'rrrnwarrmo MAOJEIINE' 'a mtabii filed October 2, 1919. Serial No. 328,019..

. To all whom it may concern:

Be it known that I, ALFRED G. F. KUROW- SKI, a citizen of the United States, formerly a citizen of Germany, residing in Brooklyn Borough, in the county of Kings, city and State of New York, have invented certain new and'useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to typewriting machines, and is disclosed as a modification of an Underwood standard typewriting machine, adapted to handle thick packs of work-sheets and carbon sheets, or adapted to facilitate the separate insertion of two sets of work-sheets, one set being insertable from either front or rear. 'The mechanism is thus Well adapted to be used in certain bookkeeping or other record systems, in

which it is desired 'to make a'plurality of entries upon separate sheets, and have identical copies thereof appear upon a single sheet, or upon a plurality of identical sheets. For these and other purposes, the device is shown .as comprising a platen, a paper table adapted to deliver a work-sheet to the bottom of the platen, in addition to a papertable adapted to deliver a work-sheet to the rear of the platen well above its bottom, and

devices for facilitating the insertion of a work-sheet at the front of the platen. For

the further facilitating of the insertion of work-sheets, he platen may normally bear against a front feed-roll, and be adapted to be drawn rearwardly and upwardly away from said feed-roll, thus affording a space between the platen and the feed-roll, to permit a thick pack of work-sheets to be inserted, from either the front or the rear, between the platen and the paper-table or feed-roll. I

'lto facilitate the handling of work-shec". there may be provided a feed-roll adjacent the aforesaid rear paper-table, and normally bearing against the platen, but adapted to move rearwardly when the platen is drawn rearwardly, and may move more rapidly than the platen.

In order to enable a single work-sheet to be inserted without need of withdrawing the platen to the extent effected by the afore-' said devices, there may be provided a fingerpiece which is adapted to withdraw the platen only far enough to enable a single work-sheet to be inserted. In order to facilitate the collating of work-sheets, there may be provided, above the platen, a front paper-table, and in machines having a platen adapted to be drawn rearwardly, this front paper-table may be connected to move with the moving platen, with the result that work-sheets, collated with the platen withdrawn, may be held collated when the platen is restored.

The device is usable for condensed billing, and to fac-iiitate this may include not only fingers at the front of the platen beneath the collating table, but may also 'include a device adapted to hold the record sheet at an upper rear paper-table. To produce a simple structure for doing this, said upper rear paper-table, which is normally clear of the platen, may be so connected that it bears against the platen when the platen is withdrawn rearwardly. Thus, the mechanism may include two devices adapted to hold the record sheet at the platen, one at the front, and one at the rear,,.while the outside sheets are being inserted.

Other features and advantages will hereinafter appear. y

In the accompanying drawings,

Figure 1 is a perspective view of an Underwood typewriting machine carriage, as modified to include the above-mentioned features.

Figure 2 is an end view, largely a diagrammatical section, showing the relationship of many of the parts seen in Figure 1, and showing the platen withdrawn.

Figure 3 is a rear perspective view, illustrating the mounting of a paper-deflector.

Figure 4 is a similar view, illustratingthe mounting of the bottom paper -table. I

Figure 5 is a view similar to Figure 2, but

omitting many parts, and showing the;

platen in normal position.

' Figure 6 1s a rear new of the rear feedroll, seen in Fi'gures 2 and 5, and showing the mounting thereof.

showing the special finger-piece actuated to partially withdraw the platen.

Figure 7 is a view similar to Figure 5, but a Figure 8 is a view similar to Figure 7, but

showing the parts in normal position.

Figure 9 is a front view of the front feedrolls seen in Figure 7, and also seen at the bottom of Figure 1.

- to Helmond, No. 1,302,161, dated April 29, 1919. The platen is fast to an axle 19, and

1 5 is journaled in swinging arms and 21,

pivoted at 22, near the bottom of the platen, upon the end plates 11 and 12, respectively. In order to steady the platen in the'platcn frame 10, the axle 19 extends through curved slots 23 in the end plates 11 and 12. The axle beyond the left-hand end plate 11 carries theusual line-space wheel 24, which is adapted to be rotated by the usual line-space lever and pawl (not shown), and is held against accidental displacement by the usual line-space detent 25, it being found that if the detent is placed at or not far from the position it usually occupies in the Under-' wood machine, the platen may swing in the slots 23 unhindered by the detent, and yetheld by the detent against accidental turnmg.

lln order to enable the platen to beheld at the front of the platen frame, substantially at thawing-scales 18, there is provided a strong rock-shaft 26, journaled in the end plates 11 and 12, and'carrying rock-arms 27 and 28, which areconnected by links 29 to the respective swinging arms 20 and 21. In the ordinary writing osition, a pair of strong springs 30, encirc ing the shaft 26, hold the links 29 substantially on dead center with the arms 27 and 28, thus enabling the platen to receive the severe blows of the types 16, without yielding. lhe links 29 are held at this position because a finger-- piece 31, pivoted at 32 upon theend plate 11, has a lower extension 33, which carries a lug 34,-underlying an extension 35 of the rock-arm 27, and the finger-piece 31 is pre vented from being turned backwardly by the spring 30, because an elbow 36 in the finger-piece, in its normal position, overlies a 111g 37 fast upon the cover-plate 38 of the I end plate 11.

In its normal position, the platen lies against front feed- rolls 39 and 40, which are resiliently supported from a shaft 41, in a manner which will be described a little later, said rolls projecting through openings 42 in a front plate or apron-43. This apron 43 is made fast by screws 44, passing through its lugs 45, and engaging a supporting'plate 46, fast to a rod or bar 47, secured in the end plates11 and 12. 1th the normal posit on of'the platen frame 10, the apron 43 mevgeao stands in front of and just above a boss 48,"

forming the front end of a bottom papertable 49, which is held fast by screws to a bar 51, forming part of the carriage.

VVhen it is desired to insert a thick pack of work-sheets over the bottom paper-table 49,

the

flected downwardly by a curved deflector 55,

held fast to a lug 56, forming part of the carriage, a screw 57 passing through the delaten is withdrawn rearwardly by drawing the finger-piece 31 forwardly,

flector 55 and entering the lug. As thepack 1 of work-sheets and carbon sheets pass forwardly, they are deflected by the boss 48, so

that they clear the rear end'of the apron 43. and are guided by said apron up in front of the platen, around which they may be pushed far enough to be adjusted upon a collating-table 58, which is made fast upon upper'extensions 59 of the swinging arms 20 and 21. If desired, the thick pack of work-sheets and carbon sheets may be inserted from the front, down over the apron 43, and be deflected by a boss 60, which forms the rear end of the apron 43, so that they pass easily onto the paper-table 49, and ma be collated as if inserted from the rear.

n addition to the paper-table 49, there is an upper rear paper-table 61, held fast to turned-over lugs 62 of a cross-piece 63 joining the ends 11 and 12, said table 61 adapted to guide work-sheets down to a deflector 64, which is adjacent a rear feed-roll or rolls-65. Normally, the feed-roll 65. occupies the position seen in Figure 5, in which it bears against the platen, below the center thereof, and considerably above the paper-table 49, it being so ositioned that the I deflector 55 guides work-s eets inserted over vthe paper-table 49 clear of the feed-roll 65. In order to carry the feed-roll 65'clear of thepath of the platen as the platen moves rearwardly, at the actuation of the fingeriece 31, the feed-roll is carried upon a sha t 66, which moves upwardly and rearwardly at the actuation of the finger-piece 31.

To effect this motion of the shaft 66, the shaft is fast to a pair of links 67, pivoted in the end plates 11 and 12,nearly at their top and nearly above the platen axle, and these links are each pivoted to a floating link 68 bya shouldered screw-68; at each floating link'68. The links 68 are journaled on the platen axle'19, with the result that as the platen swings rearwardly and upwardly,

drawn rearwardly,

the links 68 canry the links 67 upwardly, swinging the shaft 66 rearwardly, from the Figure-5 position to the Figure 2 position. The feed-rolls 65 are journaled directly upon a feed-roll shaft 69, which is carried on rockarms 70, journaled upon the shaft 66, and pressed forwardly against the platen by springs 71, coiled around the shaft. ln order to prevent the feed-roll shaft 69 from being swung forwardly when the shaft 66 swings rearwardly, a collar 72 is provided for each rock-arm 70, adapted to limit the throw of its rock-arm by contact with lugs 73, suitably disposed upon the rock-arm 70 and the collar 72 to give the proper amount of lost-motion. The deflector 64 is yieldingly mounted with respect to the rockarms 70, but moves almost as a unit therewith. F or this purpose, the deflector 64 includes U-shaped lugs 74 upon its back, adapted to embrace the shaft 69, and has a turned-up lower end 75, terminating in a finger 76, which is adapted to lie behind the shaft 69. and hold the deflector upon said shaft, In order to hold the deflector 64 approximately in position, there is provided upon each rock-arm 70 a leaf-spring 77,

Which bears against the shaft 69, and is bent forward to'bear against the end of the finger 76, thereby holding the deflector to approximately conform to: the curvature of the platen. p

. The feed- rolls 39 and 40 are supported upon the shaft 41, suitably supported against rotation backwardly in the end plates 11 and. 12. For supporting them, there are fast upon the shaft 41 two pairs of rock-arms 78. each carrying a shaft 79, which connects the rock-arms of its pair, and has journaled thereon an arm 80, to which are pivoted yokes 81, in which shafts, 82 of the two sets of feed- rolls 39 and 40 are .journaled. For holding the rock-arms upwardly, to cause their yokes to hold the feed-rolls a'gainst the platen, there is provided around each shaft 79 a coil spring 83, of a usual form, which bears against a lug 84 upon its rock-arm 80. The shaft 41 is shown as steadied at its center by a Uframe 85, having two ends 86 embracing the bar 47. The shield 43 prevents the feed-rolls- 39 and 40 from being displaced by swinging the yokes 81 too far on their pivots.

In order to steady the apron or shield 43, it may be provided with Uehaped extensions 87, at each end, adapted to embrace the shaft 41. In order to limit'the throw of-the rockarms 80 b their springs 83, each rock-arm 80 is continued below its shaft 79, to form a stop-arm 88, which is adapted to strike against the shaft 41 when it reaches the limit of its proper throw when'the platen 17 is When it is desired to insert a work-sheet past the feed- rolls 39 and 40, instead of actuvolving of the this purpose, the finger-piece 89 is fast upon a short shaft 90, journaled in a bracket 91, fast upon the end plate 12, and carrying-a rock-arm 92, connected by a link 93 to a bellcrank 94, pivoted at 95 upon the end plate 12, and having .a pin 97, which extends through an opening 98 in said plate, and underlies the right-hand linkage 29, with the result that when the finger-piece 89 is shifted from its Figure 8 to .its Figure 7 position, the platen is withdrawn by the raising of the link 29 to the small extent shown in Figure 7, thus opening the small space illustrated diagrammatically between the platen and the feed-rolls in said Figure 7. The platen is detained in this position because the fingerpiece 89 in the Figure 7 position holds the link 93 on dead center. When a worksheet has been inserted and the platen should be restored against the feed- rolls 39 and 40, the finger-piece 89 may be swungupwardly. A spring 99 assists in. returning it to its normal position.

The shift or platen frame, including the ends 11 and '12. is herein illustrated as carried upon a shift-rail 100, of substantially the usual form, by a roller 101 at the bottom of the shift-frame, said rail formin part of a bell-crank 102, which is adapted nee to be swung forwardly and upwardly by the usual shift-key-lever 103. The apron or of the shift or platen frame, rise when the shift-lever 103 is actuated. The paper table 49 and deflector 55 do not rise at this time, because they This is immaterial, however, since it is custornary to insert work-sheets only when the shift-frame is in its normal position.

For condensed billing purposes, the record sheet may be inserted over the paper-table 61 when the platen is in its nomal position or when itis withdrawn by the finger-piece The record sheet is then carried for .Wardly and upwardly around the platen and around over the top of the platen beneath a pair of resilient fingers 104, which are adapted to bear against the platen near its ends to detain a record sheet upon it and yet allow the sheet to be advanced by the replaten when held thereaga-inst by the feed-roll 65. 39 and 40. Since the table 58, as described above, moves to and fro with the platen, the record sheet is held in position by the fingers 104 even when the platen is withdrawn. After the record sheet has been inserted, the bill and any work-sheets and carbons to be inserted therewith are passed over the bottom paperare part of the main carriage,

table 49, after the platen has been withdrawn by actuation of the finger-piece 31. Withdrawal of the platen by the actuation of said finger-piece brings the platen against a lower extension 1050f the aper-table 61, with the result that the recor sheet is held in position by being pinched between the extension 105. and the platen, besides being detained by the fingers 104. The finger-piece 31 may be restored to the normal position when the work-sheets have been inserted in the manner described and typing may proceed in the usual manner, the .platen being advanced as usual byaction ofthe line-space wheel, or the usual knob (not shown). When a bill has been made out and the last entry thereof is complete, it is customary to actuate the line-space lever to advance the record sheet sufficiently to separate the entries already made thereon from the entries to be made when typing upon the next bill. Then the finger-piece 31 is actuated to withdraw the the typed bill and work-sheets withplaten,

and the new bill inserted and propdrawn,

' erly aligned. Then the finger-piece 31 is actuated to restore the platenand the operation proceeds as before.

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:

1. In a front-strike typewriting machine,.

the combination with a revoluble platen, of

' a substantially horizontal bottom papertable at the rear of the platen and having its forward edge adjacent the bottom of the platen,

a rear paper-table forwardly and downwardly inclined to guide work-sheets to the back of the platen and to hold the same above the bottom paper-table, a rear feed-roll to co-operate with the platen adjacent the lower edge of the inclined rear paper-table and above said bottom papertable, and feed-rolls positioned to engage the platen at the lower front portion thereof to co-operate with the platen in feeding work-sheets extending around tile latter.

adapted to 2. In a front-strike typewriting machine, the combination with a revoluble platen, and a rear paper-table adapted to guide sheets downwardly, of a bottom paper-table adapted to feed, sheets horizontally, feedrolls adapted to guide upwardly at the front work-sheets fed over either paper-table, a paper-deflector at the rear paper-table, and a rear feed-roll at said deflector.

3. In a front-strike typewriting machine, the combination with a revoluble platen and a rear paper-table adapted to guide sheets downwardly, of e a bottom pa tar-table feed sheets horizontal y, feedrolls adapted to guide upwardly at the front work-sheetsfed over either paper-table, a paperrde'flector at the rear paper-table, a

amie rear feed-roll at said deflector, means for moving said platen upwardly and rearand means for moving said deflecwardly,

way of the for automatically moving said rear roll at the same time.

5. In a front-strike typewriting machine,

the combination with a revoluble platen, and front and rear feed-rolls, of means for moving the platen rearwardly, and connections for automatically moving said rear roll-at the same time and faster than the platen to open a space between. all the rolls and the platen. 6. In a front-strike typewriting machine, the combination with a platen frame having ends, of a-platen journaled at said ends, rock arms comprising the journals therefor, a rock shaft carrying a second set of rock arms, links connecting both sets of rock arms, so that rocking the shaft draws the platen rearwardly in the frame, afeed roll, swinging arms on which the roll is carried, and a connection from one set of rock arms to the swinging arms, to swing the feed roll as the laten is drawn rearwardly.

' 7. In a front strike ty ewriting machine, the combination with a platen frame including a platen adapted to be shifted in said frame of a rear feed roll, a shaft across said frame, rock arms resiliently mounted on said shaft, journals for said roll in said rock arms, and means for swinging said shaft to carry the roll away from the platen when said platen is shifted.

8. In a front-strike typewriting machine, the combination with a platen frame including a platen adapted to be shifted in said frame, of a rear feed roll, a shaft across said frame, rock arms resiliently mounted on said shaft, journals for said roll in said rock arms, and swinging arms pivoted in said frame and carrying said shaft to swing the roll away from the platen when said platen is shifted.

9. In a front-strike typewriting machine. the combination with a platen frame including a platen adapted to be shifted in said frame, rock arms resiliently mounted on said shaft, journals for said roll in said rock arms, means for swinging said shaft to carry the roll away from the platen, a deflector comprisingears embracing said shaft, and means mounted on said arms to resiliently hold said deflector aligned upon the shaft and permit it to swing on said ears to move to and from the platen with the roll when said platen is shifted in said frame.

11. In a front-strike typewriting machine, the combination with a platen and a platen frame, of a rear feed roll, a shaft, swinging arms upon which said shaft is mounted, rock arms journaled upon said shaft and comprising bearings for said roll, springs effective on said rock arms to hold the roll against the platen, means for moving the platen rearwardly, and a connection from the platen to said swinging arms.

12. In a front-strike typewriting machine, the combination with a platen and a platen frame having ends, of a rear feed roll, a shaft, swinging arms upon which said shaft is mounted, rock arms journaled upon said shaft and comprising bearings for said roll, springs effective on said rock arms to hold the roll against the platen, means for moving the platen rearwardly, an axle for the platen moving in slots in said ends, and a link j ournal'ed on each end of the platen axle and connected to said swinging arms.

13. In a front-strike typewriting machine, the combination with a platen and a platen frame having ends, of an axle for the platen extending through slots in said ends, swing ing arms comprising journals for the platen, a rear feed roll, swinging arms carrying said roll, and links connecting the two sets of swinging arms.

14. In a front-strike typewriting machine, the combination with a platen and a platen frame having ends, of an axle for the platen extending through slots in said ends, swinging arms comprising journals for the platen, a rear feed roll, swinging arms carrying said roll, links connecting the two sets of swinging arms, and a deflector connected to move with said roll.

15. Ina front-strike typewriting machine, the combination with a platen and a platen frame having ends, of an axle for the platen extending through slots in said ends, swinging arms comprising journals for the platen,

a rear feed roll, swinging arms carrying said roll, links connecting the two sets of swinging arms, a front r0 1 from which the platen so moves, a finger-piece for moving said platen to insert a thick'pack of sheets, and a separate finger-piece for movin said platen a less distance and adapted to old it there. I

16. In a front-strike typewriting machine, the combination with a revoluble platen, and front and rear feed-rolls, of means for moving the platen rearwardly, connections for automatically moving said rear roll at the same time, and a fingerrpiece adapted to move the platen a less distance from said front rolls and hold it at said distance.

17. In a front-strike typewriting machine, the combination with a platen and a platen frame having ends, of an axle for the platen, arms swinging in said ends, and having journals for the axle, a rock-shaft journaled in said ends, rock arms pivoted to said swinging arms and adapted to be swung with the shaft to withdraw the platen, a finger-piece adapted to swing one rock arm a substantial, dlstance and hold it swung, a second fingerpiece adapted to swing the other rock arm a less distance and hold it swung, and feedrolls against which the platen normally bears and from which it is swung.

18. In a front strike type-writing machine, the combination with a platen and a platen frame having ends, of an axle for the platen, arms swinging in said ends and having journals for the axle, a rock-shaft journaled 1n said ends, rock arms pivoted to said swinging arms and adapted to be swung with the shaft to withdraw the platen, a finger-piece adapted to swing one rock arm a substantial distance and hold it swung, a second finger-piece adapted to swing the other rock arm a less distance and hold it swung, feed-rolls against which the platen normally bears and from which it is swung, and another feed-roll adapted to be swung with the platen. I

19. In a front-strike typewriting machine, the combination with a revoluble platen having front and rear feed-rolls cooperating therewith, of means for moving said platen rearwardly, a second means for moving the platen rearwardly a less distance, and automatic means for moving said front and rear feed-rolls awa from the platen when said first-mentioned means is operated, said front feed-rolls alone being adapted to move away from the dplaten when said second means is operate 20. In a front-strike typewriting machine, the combination with a revoluble platen, of a paper-table adapted to deliver Work-sheets thereto from the rear, said paper-table being adapted to detain a worksheet lying upon the platen While a second work-sheet is adjusted outside the first, a collating table above the platen upon which the second work-sheet may be adjusted, and a finger below said table adapted to assist in detaining the inside work-sheet.

21. In a front-strike typewriting machine, the combination with a revoluble platen, of a paper-table adapted'to deliver work-sheets thereto from the rear, feed-rolls, and means for effecting separation between the platen and the feed-rolls to enable worksheets to be inserted therebetween, said platen being adapted to be automatically made effective at said separation to hold an inside work-sheet upon the platen while the first-named sheets are being inserted.

22. In a front-strike typewriting machine, the combination with a revoluble platen, of a paper-table adapted to deliver work-sheets thereto from the rear, feedrolls, means for effecting separation between the platen and the feed-rolls to enable worksheets to be inserted therebetween, said platside the first table, feed-rolls, and means for effecting separation of the platen and feed-.

rolls to enable the outside sheets to be inserted, said platen being adapted for holding an inside work-sheet to the platen when the separation is effected.

24. In a front-strike typewriting ma chine, the combination with a rev-oluble platen and a paper-table adapted to deliver work-sheets thereto from the rear, of a second paper-table adapted to receive sheets inserted from the rear and to guide them outside the first table, feed-rolls, and means for effecting separation of the platen and feed-rolls to enable outside sheets to be inserted and to clamp said first paper-table against the platen to hold an inside worksheet against 'shifting. 1

25. In a front-strike typewriting ma- 2 chine, the combination with a revoluble platen, of a paper apron in front of and below the platen to guide a vfront inserted work-sheet rearwardly, a rear paper table to enable the insertion of a work-sheet from the rear, feed-rolls including a rear feedroll normally bearing against the platen, means for effecting separation between the platen and the feed-rolls to enable the Worksheets to be inserted at the front. and normally ineffective means for holding an inside worksheet but adapted to be made effective by said separation.

26. In a front-strike typewriting machine, the combination with a revoluble platen, of a paper apron in front of and below the platen to guide a front inserted Work-sheet rearwardly, a rear paper-table to enable the insertion of a work-sheet from the rear, feed-rolls including a rear feed-roll normally bearing against the platen, and means for efl'ecting separation between the platen and the feed-rolls to enable the work-sheets naemao to be inserted at the front, said rear papertable being adapted to be moved against the platen by said separation to clamp an inside work-sheet against the platen.

27. In a front-strike typewriting machine, the combination with a platen, of a rear paper-table, said paper-table being adapted to hold an inside work-sheet against the platen While an outside work-sheet is being inserted.

28. In a front-strike typewriting machine, the combination with a platen, of a rear paper-table, said papertable being adapted to hold an inside 'work-sheet against the platen while an outside work-sheet is being inserted, and fingers at the front of the platen adapted to assist in holding the inside sheet.

29. In a front-strike ty ewriting machine, in combination, a revolub e platen, a curved paper-apron having its front edge adjacent the platen below the printing point and its rear edge spaced from the bottom of the platen at the rear of the vertical plane passing through the axis of the platen, feedrolls to co-operate with the platen at the forward edge of said paper-apron, recordsheet-controlling means including a downwardly-inclined rear paper-table having its lower edge spaced from the back of the platen, and a deflector to guide a record-sheet from the lower edge of said rear papertable to the back of the platen and down around the same to engage the paper-apron, a bottom paper-table to direct work-sheets inserted at the rear between the rear edge of the paper-apron and the platen, and means to shift the platen upwardly and rearwardly from the paper-apron and feed-rolls and into engagement with said rear papertable, thereby clamping the record-sheet against movement and providing ample space between the platen and both the paper-apron and feed-rolls for work-sheets introduced around the platen outside of the record-sheet.

30. In a front-strike typewriting machine, in combination, a revoluble platen, a curved paper-apron having its front edge adjacent the platen below the printing point and its rear edge spaced from the bottom of the platen at the rear of the vertical plane passin g through the axis of the platen, feed-rolls to co-operate with the platen at the forward edge of said paper-apron, record-sheet-controlling means including a downwardly-inclined rear paper-table having its lower edge spaced from the back of the platen, and a deflectorto guide a record-sheet from the lower edge of said rear paper-table to the back of the platen and down around the same to engage the paper-apron, a bottom paper-table to direct work-sheets inserted at the rear between the rear edge of the paper apron and the platen, means to shift the aezaeo platen upwardly and" rearwardly--. from the" paper-apron and feed-rolls and into engagement with said rear paper-table, thereby clamping the record-sheet against movement and providing ample space between the platen and both the paper-apron and feed rolls for work-sheets introduced around the platen outside of the record-sheet, and means whereby actuation of the platenshifting means will effect a shifting of the deflector away from the platen.

31. In a front-strike typewriting machine, in combination, a revoluble platen, a curved paper-apron having its front edge adjacent the platen below the printing point and its rear edge spaced from the bottom of the platen at the rear of the vertical plane passing through the axis of the platen, feed-rolls to co-operate with the platen at the forward edge of said paper-apron, recordsheet-controlling means including a downwardly-inclined rear paper-table having its lower edge spaced from the back of the platen, a deflector to guide a record-sheet from the lower edge of said rear paper table to the back of the platen and down around the same to engage the paper-apron, and a feed-roll adjacent to said deflector to co-opera'te with the platen to feed the record-sheet between the platen and deflector, a bottom paper-table to direct work-sheets inserted at the rear between the rear edge of the paper-apron and the platen, and

means to shift the platen upwardly and rearwardly from the paper-apron and adacent feed-rolls and into engagement with said rear paper-table, thereby clamping the record-sheet against movement and provid- 7 ing ample space between the platen and both the paper-apron and adjacent feed-rolls for work-sheets introduced around the platen outside of the record-sheet.

32. In a front-strike typewriting machine, in combination, a revoluble platen, a curved paper-apron having its front edge adjacent the platen below the printing point and its rear edge spaced from the bottom of the platen at the rear of the vertical plane passing through the axis of the platen, feed-rolls to co-operate with the platen at the forward edge of said paper-apron, record-sheet-controlling means including a downwardlyinclined rear paper table having its lower edge spaced from the back of the platen, a deflector to guide a record-sheet from the lower edge of said'rear paper-table, to the back of the platen and down around the same to engage the paper-apron, and a feedthe rear between the rear edge of the paperapron and the platen, means t hift h platen upwardly and rearwardly from the paper-apron and adjacent feed-rolls and into engagement with said rear paper-table, thereby clamping the record-sheet against movement and providing ample space between the platen and both the paper-apron and adjacent feed-rolls'for work-sheets introduced around the platen outside of the record-sheet, and means whereby actuation of the platen-shifting means will efi'ect a shifting of the deflector and adjacent feedroll away from the platen.

33. In a front-strike typewriting machine, in combination, a revoluble platen, a paperapron below said platen, the forward edge of the paper-apron being adjacent the lower front portionof the platen when the latter is in its normal position, and the rear edge of the paper-apron being spaced from the bottom of the platen to facilitate the insertion from the rear of the leading edges of work-sheets between the rear edge of the paper-apron and theplaten, feed-rolls ex-, tending through openings in the forward portion of the paper-apron to co-operate with the platen in feeding work-sheets around the latter, a substantially horizontal bottom paper-table to direct work-sheets to the rear of the paper-apron, a forwardly and. downwardly inclined upper paper-table having its lower edge in substantially the same horizontal plane as the axis of the platen and spaced to the rear of the platen when the latter is in its normal position, a deflector to guide a record-sheet inserted over the upper paper-table around the lower rear part of the platen to insure the passage of the record-sheet to the paper-apron, and a feed-roll to co-operate with-the platen adjacent said, deflector, means to shift the platen upwardly and rearwardly away from the paper-apron and the feed-rolls extending therethrough to facilitate the insertion of work-sheets outside ofthe record-sheet,-

and means operable by said platen-shifting means to move said deflector away from the platen.

' ALFRED G. F, KUROWSKI'. Witnesses:

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