US1638138A - Typewriting machine - Google Patents

Description

E. A. BASKERVILLE TYPEWRITING MACHINE Filed Oct. 6. 1925 Aug. 9, 1927. ,138

Patented Aug. 9,

UNITED STATES EDWARD A. BASKERVILLE, or OMAHA, NEBRASKA, ASSIGNOB 'ro 'unnnnwoon TYPE- 1,638,138 PATENT OFFICE.

WRITER COMPANY, OFNEW YORK, N. Y., A CORPOIR AEIIIOlSI' OF DELAWARE.

TYPEWRITING' MACHINE Application filed October 6, 1925. Serial No. 60,744.

This invention relates to means for facilitating the handling of work-sheets 1n typewriting machines, and is especially used in certain systems of typewriter bookkeeplngi.

In some systems of bookkeeping, such as for instance in building and loan accounting, there is provided a comparatively Wide journal-sheet upon which it is desired to carbon copy certain items as they areentered upon the ledger-sheets, by means of a typewriting machine.

Sinceboth the sheets are provided with columnar spaces and each item must be entered in'its corresponding column on both sheets, it has been found necessary to provide a collating device in front of the platen; Said collating device may be in' the forn'i'of a table having side gages against which the ledgersheets may be laterally positioned preparatory to being located relatively to the line of typing upon the journal-sheet.

In'this invention it is proposedto hold the journal-sheet and the carbon always.

a supply of carbon in a spool, the carbon 1 being passed around the platen of the machine and then rewound onto another spool which may be rotated, to present fresh portions of the carbon to the printing line, by means of the line-spacing mechanism; As hereinbefore stated, the journal-sheet is considerably wider than the ledger-sheet and consequently the width of the carbon may be equal to the Width of the ledger or narrower sheet, and since the carbon strip is provided with feeding mechanism, which, although operatively connected to the line-spacing mechanism, is. nevertheless, independent of the platen-feeding mechanism, it is possible to arrange the regular feed-rolls of the machine in amanner tov feed only the journalsheet when the platen is rotated. To this end, the center rolls are eliminated and only the outer rolls, bearing upon the edge of" the journal-sheet, are left in themachine.

Now then, since the journal-sheet and the carbon strip are placed around the platen of ledger and the journal ;the machine ready to be line-spaced by means of theregular line-spacing mechanism, and. since the'center feed, rolls have been taken off:. the niachine,it will be clear that the ledger-sheet may be inserted around the platen'and positioned by means of the collating table in front of the platen. 'However, in order; to hold the ledger-sheet in place, so as to permit the typing of a line thereon, it is necessary to provide clamping means. In this invention, not only are clamping means provided to hold the ledger-sheet but also feeding mechanism therefor, so that in such cases where it may be requiredto type more thanone line upon the ledger-sheetv in any one entry, thenthe same be linespa'ced simultaneously with the line-spacing of the journal-sheet and the carbon strip.

It will be understood that although the three sheets are simultaneously linespaced if necessary, there are provided three dis-' tinctly separate feeding mechanisms, synchronized for simultaneous operation. In this manner itis possible to insert the ledgersheet arounc the platen and to remove it therefrom, without disturbing the position of either the journalsheet or the carbon strip, which is advantageous, since it eX- pedites the operation of the work.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a front view of the invention as applied to the platen-frame of an Underwood standard typewrlting machine.

Figure 2 is an end view in elevation show mg the carbon-feed mechanism and the ledger-sheet feeding mechanism, said mechanisms being synchronized with the platenoperate with the platen to feed a work-sheet therearound. Said machine is also provided with a line-spacing mechanism 13, operatively connected to the platen, and typing instrumentalities represented by a typebar 14.

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According to one of the features of this lnvention, a record or ournal-sheet and an associated carbon strip 16 may be nor- .mally leftiu the machine, in registering position around the platen, wh1le an outside spacing mechanism.

Since the journal-sheet 15 is much wider than the ledger sheet 17 it follows that the carbon-strip needs only to beas wide as the ledger-sheet, and consequently the feeding of the journal-sheet will not affect the carhon; But, since it is desired to feed the carbon also, in ordeiyto expose fresh portions thereof to the printing field, mechanism is provided, which, although independent of the platen, is, nevertheless, operatively connected to the line-spacing mechanism. Said mechanism mayinclude a supply-spool 19 containing the carbon strip 16 which is led downwardly and is inserted at the introductory side of the platen, under and around the platen, and up in front thereof, past the printing point'to be rewound onto a receiving-spool 20. Said last-mentioned spool 20 is operatively'mounted on a shaft 21 journaled in end plates 22, pivotally mounted on a'shaft 28 which is in turn journaled in end brackets 24, and is operatively connected to a line-space slide 25, by means of a pawl-and-ratchet arrangement. Said arrangement comprises a ratchet 26 secured to the shaft 28 and an arm 27 rotatably mounted on said shaft, the end of the arm being operatively connected by means .of a link 28 to the slide 25. Upon said arm 27 there is mounted a pawl 29 engaging with the ratchet 26 with which it is normally held in engagement by means of a spring 30. Said ratchet is also provided with a retaining pawl 31 held in engagement by means of a spring 32, the pawl being pivotally mounted at upon one of the end brackets 24. In order to simplify the mechanism for driving the spool 20 from the slide it has been found advantageous to mount said spool on the shaft 21, whereas the ratchet 26 is mounted on the shaft 23, and, of course, the two shafts have to be operatively connected by means of gears 34 and 35, respectively, secured to the shafts 21 and 23.

From the foregoing description it will be gathered that both the journal-sheet and the carbon strip may be line-spaced by means of the regular line-spacing mechanism, although two distinctly separate mechanisms are provided for reasons which have also been set forth. The journal-sheet is normally left in the'machine sot-hat successive lines of t vin which are entered in the ledger-sheet may be copied in acondensed form upon the ou'rnal'-sh.eet. V g

In order to facllitate the handling of the ledger-sheet, which isqplace'd 1n frontiof the 101111131-Sl168l3 1n co-operating position therewith, so that the corresponding columnar spaces of both sheets may register,there is provided a front table 36 having side gages S7 slidably mounted thereon, and in co-cpcrating relationship with side gagesSS' .slidably mounted on a rear table 39. After posit oning the slde gages 3? and 38, the

ledger-sheet is inserted at the rear of the machine, under around tne platen over the carbon strip, and the leading edge of the sheet is passed between rollers 40 and 41, the former being operatively connected to the line-spacing mechanism by means of a pinion 42 fast to a roller-shaft 48 and engaging with the gear 35. rotatably mounted on a shaft. 44 journaled in arms 45, the arms in turn being pivotally mounted on a fined shaft 46. Said roller 41 is normally held against the roller '40, as

shown in Figure 3, thereby providing a grip for the ledger-sheet, by means of which grip the sheetis'fed when the roller 40is rotated.

In order to insert the ledger-sheet between the two rollers, the arms 45 are swung away The roller 41 is from the roller 40 to a position, as shown'in Figure 2. To this end, there is provided mechanism including a handle 47 fast to a shaft 48, a short arm' 49 also fast to the shaft, and a pair of links 50 operatively connecting said shaft 48 with the arms 45. Said links 50 are pivotally mounted on a stud 51 on the arm 49, thehandle 47' being also provided with a stud 53 in line with the stud 51 for operating the other link 50. Both links are operatively connected with the arms 45 at 54 in manner toalford the simultaneous operation of the two arms, thus providing a parallel swing of the roller 41. It will be noted that the arms are provided with springs 55 to hold the roller 41 in efi'ective position. However, upon swinging the handle 47, the actuating studs 51 and 53 will be brought in line with the gages which have been previously referred to as the gages 37 and 38.

In order to facilitate refilling the supply spool 19, there is provided a key-ho1e slot 56 in the brackets 24 engaging with flat tened portions 57 of the spool-shaft 58, which may be rotated by means of a finger piece 59 so as to clear the slot, thereby per:- mitting the swing of the end plates 22 which are held together by means of tie-rods 60 and 61. In this manner, the shaft 58 is taken off the machine and a fresh spool may then be replaced.

It will be noted that according to the present exemplification of the invention, the front table 36 is secured to the end brackets 22 at 62 and that the front rolls are mounted on the table, so that if desired the complete unit may be removed from the machine for other classes of work.

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. The combination with a typewriting machine, having a revoluble platen and linespacing mechanism therefor, of a pair of feedrolls permanently held against said platen to hold and feed a work-sheet therearound by its side margins only, means operable by the line-spacing mechanism for feeding a length of carbon around the platen between and free of said feed-rolls, means for collating with the first work-sheet an outan outside work-sheet brought to printing position over the carbon and free of said feedrolls, and means for holding and feed ing said outside work-sheet, said last-mentioned feeding means being operable by said linespacing mechanism.

3. The combination with a typewriting machine. having a platen, of a pair of feedrolls permanently held against said platen to grip the side margins only of a comparatively wide record-sheet, means for feeding a strip of carbon under and around the platen past the printing line, said strip being narrower than the record-sheet so as to clear said permanent feedrolls, means for collating an outside sheet of substantially the same width. or narrower than the corbonstrip andplaced thereagainst around the platenyand means for holding the collated outside sheet. i

4. The combination with a typewriting machine, having a platen, and a line-spacing mechanism therefor, of a pair of feed-rolls permanently held against said platentogrip the side margins-only of a comparatively wide record-sheet, means. operatively connected to the line-spacing mechanism for feeding a strip of carbon under and around the platen past the'printing line, said strip being narrower than the record-sheet so as to pass between and clear of the feed-rolls, means for collating an outside sheet of substantially the same width or narrower than the carbon strip, and means for holding and line-spacing the outside sheet, said last-mentioned means being operatively connected to the line-spacing mechanism in a manner to be line-spaced concomitantly with the linespacing of the record-sheet and of the carbon strip. 7

5. In a typewriting machine, having a revoluble platen, a line-spacing mechanism therefor, and outer feed-rolls for feeding a work-sheet around said platen, means in cluding a supply spool and a receiving spool for feeding a carbon strip around the platen, said means being operative-1y connected to the line-spacing mechanism, and said'carbon strip being narrower than the work-sheet so as'to clear the feed-rolls, means operatively connected to the line-spacing mechanism ef.

fective to feed a second work-sheet of substantially the same width as the carbon strip, and means for collating the last-mentioned work-sheet relativelyto the position of the first-mentioned work-sheet.

6. In a typewriting machine, having a revoluble platen, a line-spacing mechanism therefor, and outer feedrolls for feeding a work-sheet around said platen, means including a supply spool and a receiving spool for feeding a carbon strip around the platen, said means being operatively connected to the line-spacing mechanism, and said carbon strip being narrower than the work-sheet so to clear the feedrolls, means operatively connected to the line-spacing mechanism effective to feed a second work-sheet of substantially the same width as the carbon strip, and means for collating the last-mentioned work-sheet relatively to the position of the first-mentioned work-sheet, said last-mentioned means including a front and a rear table, and side gages mounted thereon, the side gages on both tables being aligned in a manner to afford the lateral alignment of the last-mentioned worksheet.

7. The combination with a typewriting machine, having a revoluble platen and means for holding and line-spacing a comparati've-ly Wide, record-sheet therearound, said means including. outer feed-rolls positioned near the edges. of the record-sheet and a line-space handle operatively connect- 3 ed to, the platen,v of means to line-spaceand hold aroundithe platen, a. narrower carbon strip,. said last-mentioned. means including a snpply s'peol and a-reeei-ving spjool, :thelattei' being operatively connected (to thelinespace handle, and means i'on laterally positioning; andline spacingi a .ceinparatiyely mamas tl1B-i'by ,dl"i1Wll 1g on. the statementsheet. to 20 line'spaee the same. A a

;- EDWVARD A.v BASKERVILLE.

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