US2043370A

US2043370A - Typewriter carriage

Info

Publication number: US2043370A
Application number: US732009A
Authority: US
Inventors: Conrad C Dahl
Original assignee: Burroughs Adding Machine Co
Current assignee: Unisys Corp
Priority date: 1934-06-23
Filing date: 1934-06-23
Publication date: 1936-06-09
Anticipated expiration: 1953-06-09

Description

June 9, 1936. c. c. DAHL 2,043,370

I TYPEWRITER CARRIAGE Filed June 25, 1954 2 Sheets-Sheet 1 lNVENTOR fanmd 0,7321% Anb f g June 9, 1936. c. c. DAHL TYPEWRITER CARRIAGE I Filed June 25,

1934 2 Sheets-Sheet 2 INVENTOR C mma CDafI/ fink, M9

ATTORNEYS Patented lune 1936 nan AT E

- -rrrnwnrrnn maniacs Conrad C. lilahl, Detroit,

Mich, assignor to' Burroughs Adding Machine (Jompany, Detroit, Mich, a corporation oi Michigan This invention relates to paper feeding equipment for typewriters, accounting machines and the like.

It is usual in keeping books to make entries on a record or journal sheet of all transactions, after which the entries are posted to an individual ledger sheet or work sheet of respective classifications for said series of entries. In machine bookkeeping it is desirable to make both of these entries at the same time and this is done by making the entry on the journal sheet and at the same time making an entry on the individual ledger or other sheet. In order to do this the individual ledger sheet must be insertable and removable from the machine independently of the journal sheet.

It is necessary, therefore, to have some simple and easy Way of feeding the ledger sheet into the machine without disturbing the journal sheet on which all the entries should appear in proper spaced relation.

The object of the present invention is to provide an improved paper carriage whereby bookkeeping work of the character described may be performed.

A more particular object of this invention is to provide an improved paper feeding equipment which permits ready insertion and withdrawal of a second sheet without disturbing the first sheets A still more particular object is to provide'apaper carriage in which both the ledger and the journal sheets may be spaced simultaneously and in which the ledger sheet may be inserted and removed while the journal sheet is held in place and is prevented from being moved.

Other and more specific objects of the invention will appear from the following specification and drawings in which,--

Figure 1 is a perspective view of a typewriter pager carriage embodying the present invention; an

Fig. 2 is a left side elevation partly in section of the paper carriage illustrating one sheet in printing position and the second sheet being inserted.

The present invention is illustrated as being .applied to a Burroughs" typewriter, although it will be manifest that the invention may be applied to other typewriters and/or calculating machines, billing machines, or bo0kkeeping machines.

Paper carriage Referring to the figures the paper carriage C is slidingly supported by end plates H) for tabulating movements and carries a rotatable platen P against which the types (not shown) are adapted to strike to make impressions upon sheets of paper that may be positioned between the types and the platen. The platen is line. spaced by operation of the hand lever it which actuates pawl l2 which in turn engages a ratchet I3 in the usual manner.

Journal sheet feeding devices As previously stated it is the purpose of this invention to provide means for permitting the ready insertion of a second form such as a ledger sheet around the platen from the rear and into printing position at the front of the platen without disturbing the first or journal sheet. Accordingly, the journal sheet J is supported and fed in such a manner as to permit the insertion of a second sheet without disturbing the former.

A guide plate It is secured to the carriage and extends the full width of the latter in front of the usual paper guide ll. The guide It is further provided with a frame l8 extending upwardly from its center portion and being of suificient width to span the full width of the journal sheet. Plate I 6 is formed with a lower extending portion H3 at the right endwhich engages and retains the trailing edge of the journal sheet against the platen and out of contact with an entering ledger sheet, thus further facilitating insertion of the ledger sheet.

The journal sheet J is fed over the frame It in front of the guide It, under the platen P between the latter and the usual feed rolls 20, which are movable relatively to the platen to and from paper engaging position and then upwardly in front of the platen and. under the pressure rolls 2!. The latter serve toliold the journal sheet in proper line spaced relation to the platen when the feed rolls are out of paper-engaging, i. e., open position, to permit insertion of the journal sheet and ledger sheet. The feed rolls 20 are releasable by movement of lever 1'2 in the usual manner to permit insertion of the journal as well as the Guide I6 is positioned forward of the guide I! sufiiciently to provide a space or chute to permit insertion of the second sheet, illustrated in the present instance as a ledger sheet L. The frame I8 holds the rear end of the journal sheet upwardly sufiiciently to permit insertion of the ledger sheet behind the platen through the space or chute provided between the guide l6 and the guide l1. ledger sheet, the left hand upper edge of guide iii is provided with a forwardly inclined lip 23 which aids in the insertion of the second sheet into the chute between the two guides. The ledger sheet is preferably inserted intothc chute with a side and adownward motion with its lower left corner leading (Fig. 1) so that the sheet is fed spirally about the platen to printing position.

When the second form or ledger sheet L is in- To further facilitate insertion of the serted the feed rolls 20 are of course released to open position to permit insertion of the second sheet between these rolls and the platen, but at this time the pressure rolls 2| retain the journal sheet in proper line spaced relation against the platen so that the ledger sheet can be inserted without disturbing the journal sheet. A paper guide 25 is provided to guide the ledger sheet around the platen and upward in front of rolls 2| to printing position or at least into a position where the operator can grasp the forward edge of the ledger sheet with his fingers and position the same after which the feed rolls 20 are moved into engagement with both the journal and ledger sheets to cause simultaneous feeding of both sheets upon rotation of the platen.

It will be understood, of course, that the present invention is shown as applied to the carriage of a Burroughs" typewriter, but that the guide l6 and its rack or frame Hi can be attached to any carriage and is removable so that the usual typing operation can be performed in the usual manner when the device is not desired or necessary. On the other hand, guide l6 and rack I8 does not interfere with normal typing and where a machine is used alternately for typing in the regular manner as well as for bookkeeping, the guide and rack can be retained on the machine.

From the foregoing description it will be apparent there has been provided a paper carriage which will permit the insertion of a second form such as a ledger sheet into a paper carriage and to printing position therein in front of a first form such as a journal sheet, and without disturbing the first form. By feeding the ledger sheet about the platen on a helix, or a spiral path, the tortuous course of the ledger sheet is eased and feeding is more readily accomplished. By means of this invention bookkeeping operations can be more economically performed because they are not only speeded up and thereby time saved, but the sheets are not subject to being rumpled or mussed when being inserted as otherwise occurs if the proper space is not provided between the sheets and the journal sheet is not held out of the way to permit ready insertion of the ledger sheet.

Other advantages and novel features will be apparent to those skilled in the art to whom it will also be apparent that minor changes may be made in details of construction without departing from the spirit and scope of the invention as defined in the following claims.

I claim:

l. A paper carriage for use in typewriters and the like having a rotatable platen, a pair of spaced paper guides positioned rearward of said platen and adapted simultaneously to guide a plurality of sheets of paper to printing position on said platen, a frame of substantially the same width of the sheet of paper passing thereover and extending upwardly from the central portion of said forward guide for holding the free portion of the sheet of paper thereon spaced from said second guide to permit ready insertion of said second sheet said forward guide having a portion extending outwardly from one side of said central frame to facilitate the'insertion of said second sheet therebehind and from the side whereby the second sheet may be fed spirally about the platen into final position.

2. A paper carriage for use in typewriters and the like having a rotatable platen, feed rolls as sociated therewith, said rolls being movable to and from paper-engaging position, a pair of spaced paper guides positioned rearward of said platen and adapted simultaneously to guide a phirality of sheets of paper to printing position on said platen, said forward guide extending substantially the full width of said carriage and having a frame of substantially the same width as the sheet of paper being passed thereover extending upwardly from the central portion thereof for holding the rear portion of said sheet of paper thereon spaced from said second guide to permit ready insertion of the second sheet of paper, said forward guide also having a side portion extending outwardly from said central portion andspaced from said second guide and arranged to facilitate insertion of the second sheet of paper there behind and from the side whereby the second sheet is wound spirally about said platen to printing position, and means for holding said first sheet of paper in proper line spaced relation while said rolls are out of paper-engaging position and said second sheet is being inserted.

3. A paper carriage for use in typewriters and the like having a rotatable platen, feed rolls associated therewith, said rolls being movable to and from paper-engaging position, a pair of spaced paper guides positioned rearward of said platen and adapted simultaneously to guide a pinrality of sheets of paper to printing position on said platen, said forward guide extending sub stantially the full width of said carriage and having a frame extending upwardly from a portion thereof for holding the rear portion of the sheet of paper thereon spaced from said second guide to permit ready insertion of the second sheet of paper, said forward guide also having a side portion lower than and extending outwardly from said frame in spaced relation to said second guide and terminating in a forwardly extending lip adjacent said upwardly extending frame, said second guide terminating in a rearwardly extending lip cooperating with said forwardly extending lip to facilitate insertion of the second sheet of paper there behind and from the side whereby said second sheet is fed spirally around said platen to printing position means for holding said first sheet of paper in proper line spaced relation while said second sheet is being inserted while said rolls are out of paper-engaging position, and means for guiding the second sheet of paper around the front of said platen independently of said first sheet to printing position thereon.

4c. A paper carriage for use in typewriters. and

the like having a rotatable platen, and a pair of a tion of the sheet of paper against the platen, and 6 having a laterally projecting portion spaced from and cooperating with the second guide ,to permit ready insertion of a second sheet of paper from the side and spirally around the platen to printposition on said platen.

- CONRAD C. DAHL.