US1563448A - Typewriting machine - Google Patents

Description

Dec- 1 1925' 1,563,448 A J. A. B. SMITH i TYPEWRITING MACHINE Filed oct. 25. 1923 2 Sheets-Sheet 1 .fj d4 +I n n fr 8 ego u, h V f l e s s 2 .5] ma www Mms. SAGZ .N. Bmw .I Aww .Ee JWM.

Dec. l 1925- Patented Een. 1, 1925.

U N l "l" E STA'ES PATENT OFFICE.

JESSE A. B. SMITH, F STANFORD, CONNECTICUT, ASSIG-NOR TO UNDERVJOOD vTYP-E- W'RITER COMPANY, F NEW YORK, N. Y., ,A CGRPOBATO-N OF DELAWARE.

TYEWTRTING MACHNE.

Application filed. October 25, 1923.

To r/ZZ fr0/0m t may concern.

Be it known that l, Jnssn A. B. SMITH, a citizen of the United States, residing in Stamford, in the county of Fairfield and State of Connecticut, have invented `certain new and useful Improvements in Typewriting Machines, of which the following` is a specification.

rlhis invention relates to the paper-handling devices of typewriters.

Particularly this invention is an improvement on the auxiliary paper-feeding device forming the subject of my copending` application Serial No. 598,066, iiled October 3l, 1922, (now Patent No. 1,524,756, dated February 3, 1925).

The principal object oit the invention is to facilitate the insertion and withdrawal of superimposed work-sheets passed around the platen over a wide proof-sheet and a narrower carbon-sheet which shall remain on the platen while the overlying worksheets, for instance, a ledger-sheet and a statementsheet, are withdrawn and replaced by another set.

Especially it is the object of the invention to improve the means for holding the recordsheet steady against the platen while the ledger-sheet and statement-sheet are being 3o exchanged.

The device on which the present invention constitutes an improvement comprises, in connection with a long platen, an auxiliary paper-table mounted in spaced relation forwardly of a main rear paper-table, and the usual feed-rolls running on the lower side of the platen and on the delivery side of the platen above the printing` line, a collating table extending upwardly and rearwardly. In the rear of this collating table there are displaceably mounted roll-carrying paper-lingers for separately holding the record-sheet, together with its overlying carbon-sheet, on the platen.

A wide record-sheet, together with a narrower overlying carbon-sheet, positioned for giving a narrow margin on one side and a wide margin on the other, is inserted at the introductory side of' the platen over tho auxiliary paper-table, and is pushed around beneath the platen while the feed-rolls running on the lower side of the platen are released. When the leading ends ot the record-sheet and overlying carbon-sheet come up at the front of the platen, they are Serial No. 670,624.

directed rearwardly beneath and to the rear ot the collating table and beneath and to the rear oli' spring-clip-clamping lingers and released roll-carrying-paper-ingers, which roll-carrying-paper-fingers, after the recordsheet has been adjusted, are made effective to hold the record-sheet together' with its carbon-sheet against the platen. A ledgersheet and narrower statement-sheet, together with interleaved carbon-sheet, may now be inserted over the main rear paper-table and brought up at the front ot' the platen forwardly ot' the paper-fingers and at the iront of the collating table. First the ledger-sheet is adjusted relatively to the record-sheet, and a releasable clamp is made effective to engage the margin of the ledger-sheet to hold it on the collating table in adjusted position while the narrower statement-sheet is adjusted relatively thereto, after which the usual feed-rolls may be made eifective and the clamp made ineffective, whereupon typing and line-feeding of all sheets may proceed in the usual manner.

According to this invention, the record- .sheet is held on the platen by two kinds of paper-iingers, namely, roll-carrying fingers pressing lightly against the carbon-sheet to prevent its withdrawal when the statement and ledger sheets are being withdrawn and also engaging the record-sheet, and, outside of the roll-carrying lingers, clamping fingers consisting of spring-clips extending a considerable distance over the platen to bear only against the record or proof sheet, and to hold this unit securely against the platen when the ifeed-rollsare oit, and also to assist in advancing said unit when the feed-rolls are on.

Qther features and advantages will hereinafter appear.

In the accompanying drawings,

Figure l is an enlarged vertical section through the platen and associated parts ot Jthe auxiliary paper-handling device embodied in an Underwood typewriting machine, and illustrates the Ymanner in which a ledger-sheet and a statement-sheet may be inserted from the rear around the platen outwardly of aA record-sheet and its carbonsheet held in the machine.

Figure 2 is a front elevation of the platenframe, with the present invention installed thereon, partly diagrammatic,v with parts broken away.

As the drawings show, there is inserted in the machine an extra wide record or proof sheet 1 together with a narrower overlying carbon-sheet 2, positioned for giving narrow margin on one side and a wide margin on the other side of said recordsheet, and which, at 3, is folded rearwardly over the leading edge of the proof-sheet to facilitate the insertion of the carbon-sheet 2 along with the proof-sheet 1 at the introductory side of a more than ordinarily long platen et, journaled by means of its axle 5 in the end walls G of the platen-frame. The proof-sheet 1, together with the overlying carbon-sheet 2, is passed downwardly over an auxiliary rear paper-table 7, which is spaced forwardly from a main rear papertable 8. As the proof-sheet 1 and its carbonsheet 2 are pushed downwardly, a usual curved paper-apron 9 guides these sheets around the'platen and up to the front thereof, the usual releasable front and rear feedrolls 1() and 11 being castoff so as to provide a free passage for the record-sheet 1 and its carbon-sheet 2. As the leading ends of the proof-sheet and its carbon-sheet come up at the front of the platen, they are directed rearwardly beneath the front collating table 12, which is formed in right and left sections 13 and 14, and the leading ends of the proof-sheet 1 and its carbon-sheet 2 pass rearwardly beneath paper-fingers 15 and 1G carrying rolls 15 and 15". llhe collating table 12 and the paper-lingers 15, 16 are mounted to swing away from the platen to allow passing the leading ends of the proof-sheet 1 and its carbon-sheet 2 below and to the rear thereof. The roll-carrying paper-lingers, when swung into engagement with the combined sheets 1 and 2, press slightly against the carbon-sheet to guard against accidentally pulling the carbonsheet out of the machine when the statement and ledger sheets are being removed.

According to the present invention, additional means, different from the roll-carrying paper-lingers, are used to safely prevent accidental displacement of the extra wide proof-sheet during the withdrawal or insertion of the ledger and statement sheets.

These means are particularly shown in Figure 1 and indicated in Figure 2; they consist, in the illustrated embodiment of the invention, in spring-clips 17 and 17, which bear against the margins of the proof-sheet 1 outside of the roll-carrying lingers 15 and 16. These spring-clips conform to the curvature of the platen and extend a considera-- ble distance over the platen, holding the proof-sheet securely against the platen to prevent accidental displacement of the proof-sheet during the withdrawal and insertion of the ledger and statement sheets. These spring-clips 17 and 17 may be combined with the'roll-carrying paper-lingers 15 and 16, so that they are located outside of the latter and will securely grip the record-sheet alone, while the roll-carrying tingers press only lightly against the carbonsheet. In the embodiment shown, the connection is effected by a common rock-shaft on which all roll-carrying lingers and spring-clips are displaceably mounted.

1n the embodiment of the invention particularly shown in the drawings, the springclips are attached to the side gages 18 and 19 inwardly of the latter. These side gages are respectively provided at their rear ends with inwardly-directed inclined iioor portions 20 and 21 to maintain the proof-sheet between the side-edge gages 18 and 19 and also to direct the sheet upwardly and rearwardly. The side-edge gages 18 and 19 are bent rearwardly from outwardly-extending arms 22 and 23 to the inner ends of which the upper ends of the spring-clips 17 and 17" are detachably secured by means ol screws 24.

When the record-sheet is adjusted to the typing position, the collating table, together with the roll-carrying fingers, spring-clips and side gages, is swung by means of the common rock-shaft into a position at which said spring-clips and roll-carrying fingers come into engagement with the proof-sheet 1 and carbon-sheet 2, respectively.

lVhile the record-sheet 1 is held in adjusted position by the paper-linger 15 and 16 and spring-clips 17 and 17, a ledgersheet 25 narrower than the proof-sheet and a statement-sheet 26, together with an interleaved carbon-sheet 27, may be inserted downwardly over the main rear paper-table 8, and at their leading edges brought up at the front of the platen and to the front of the collating table 12, where the ledger-sheet 25 may be gaged at either or both of its side edges by means of the side-edge gages 28 and 29 of the outer edges of the respective table sections 13 and 14, while the narrower statement-sheet 26 may be gaged by the lefthand side-edge gage 29.

After the ledger-sheet 25 has been adjusted, it may be temporarily held in adjusted position by means of a clamp ii() comprising a foot 30 carried by a lever 31 fixed upon a shaft 32 journaled at its ends in a bracket 33 on the outer side of the right-hand side-edge gage 28 of the collating table 12. This clamp is releasably held in either its effective or ineffective position by a spring 84. While the ledgersheet is held in adjusted position by the clamp 30, the narrow statement-slieet 26 may be adjusted relatively to the ledger'- sheet 25, whereupon the feed-rolls 1() and l1 may be made effective. The clamp 30 may now be released and typing upon all the sheets may proceed in the usual manner, all the sheets being line-spaced together either' by means of the finger-wheel 36 or the usual ratchet-wheel 37 and the mechanism connected therewith.

The carbon-sheet 2 tor the wide proofsheet l is considerably narrower than the proof-sheet l, which may have a comparatively wide margin on one side projecting beyond the ledger-sheet 25 and carbon-sheet 2 for receiving additional data such as the name or' the customer, which it ma be desired to have upon the proof or recoin sheet and not upon the statement or ledger sheet, and a narrow margin on the other side. This exposed broad marginal part oi the proof-sheet appears in the drawings at the right-hand end of the platen, but by sliding the collating table l2 along the platen Lla margin for additional data can be exposed at the left-hand side of the recordsheet, or, if desired, the collating table can have a middle location so as to provide a wider projecting margin at each side oit the record-sheet.

When the desired item or items have been typed, the feed-rolls l() and 'il may be cast off and the ledger and statementsheets withdrawn from the machine upwardly at the front of the platen, while the proof-sheet l is safely held against accidental displacement by the spring-clips 17 and 17, and the narrower carbon-sheet overlying the proof-sheet -is held under light pressure of the roll-carrying lingers 15 and 16 to guard against it being` accidentally pulled out when the previouslytyped ledger and statement sheets are being removed and new ledger and statement sheets, with interleaved carbon-sheets, are being inserted over the main rear papertable 8, the remaining proof-sheet receiving impressions of the matter typed upon a plurality of sets ot successive statement and ledger sheets.

In the illustrated embodiment of the invention, the hereinbefore-mentioned papertingen` and clamping means 'for the proofsheet and its carbon-sheet and the collating table are mounted upon a rock-shaft or rod extending above and along the platen. This rock-shaft comprises a main or middle rod part 40 and right and left sections ll and 42 provided at their inner ends with sockets L3 in which the ends oit the main rod part 40 are fixed by means of screws 44. The gage-carrying arms 22 and 23 are provided at the upper sides of their inner ends with out-turned portions 45 secured by means of screws 46 to U-shaped bracket members 47, which are slidably and rotatably mounted on the main rod part d), and each ot which is provided with a projecting iinger-piece 48 by which the paperiingers and spring-clamps may be either slid along or rotated upon the main rod part i0 to be in adjusted position and pressed towards the platen by means of detents Al-9 carried by the U-shaped members and pressed by means of springs 50 into a longitudinal groove 5l of the rod part 4&0. it will be seen that the various paper-fingers and spring-clamps may be vibrated independently of the rod 40 or together with said rod or rock-shaft, on which by similar means also the coilating table is mounted.

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

Having thus deicribed my invention, I claim:

In a typewriting machine having a revoluble platen, an introductory papertable directing to the platen a wide recordsheet, paper-feeding top rolls bearing lightly upon a narrow carbon-sheet directly overlapping the record-sheet, a collating table at the delivery side of the platen for a narrow statement-sheet placed over the carbon-sheet, and releasable main rollers running upon the platen to hold all the sheets, an auxiliary record-sheet holding element in the form of devices bearing heavily against exposed and widely separated margins of the wide record-sheet and co-operative with said top rolls for securely holding said sheet permanently against the platen, preventing displacement thereof while the main rollers are cast otil and the narrow statement-sheet is being withdrawn from the platen and replaced by another.

JESSE A. B. SMITH.

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