US1310000A - burridge - Google Patents

Description

L. S. BURRIDGE, DECD.

F. o. BURRIDGE. ExEcuToR.

TYPE WRITING MACHINE.

APPLICMION FILED ocr. so. 1911.

Patented July 15, 1919.

STATES LEE S. BUR/RIDGE, DECEASED, LATE OF NEW YORK, N. Y., BY FRANCIS O. BURRIDGE,

EXECUTOR` 0F NEW YORK, N. Y.. ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNDER- WOOD TYPEVVRITER COMPANY, OE NEW YORK, N. Y., A CORPORATION 0F DELA- WARE.

1.3io,ooo.

Specification of Letters Patent.

TYPE-WRITING MAoHrNE.

Original application filed September 27, 1915, Serial No. 52,594. Divided and this application filed October To all whom t may concern.'

Be it. known that LEF. S. Brummen, deceased, late a citizen of the United States, and lateresiding in the borough of Manhattan, county, city, and State ot New York, invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to typewriting machines, and more particularly t`o means for controlling the margin ot' the work-sheets, especially in connection with adjustable fingers or devices to hold the work-sheet against the platen.

This application is a division of'. pending application No. 52,591, filed September 27, 1915.

According to the present invention, in addition to holding the work-sheet close to the platen, the paper-finger device for one side of the sheet has also means to warn the operator when the end of the line of writing has been reached. `When this finger is adjusted to position at the side margin of the work-sheet, an alarm device for warning the operator is simultaneously adjusted therewith.

As matters of further improvement, the paper-guiding fingers, which are stamped from sheet-metal, are loosely mounted upon carriers which are slidably mounted upon a rack which extends from side to side of the typewriter carriage. yThis rack is made of thin sheet-metal and is secured to a small rail, which, in turn, is secured -to the typewriter carriage frame. The carriers are also stamped from sheet-metal, and each of them has two bent ears which hook over the rack. The carrier for the right-hand Inargin finger is provided with a projection or Tappet, which, when the typewriter carriage is moved to the left, strikes a clapper and rings a bell which warns the operator that the end of the line has been reached. Each paper-finger and carrier is normally locked against lateral movement by a tooth thereon. which normally extends into one of the notches of the rack. To free these devices from the rack tor lateral movement, a finger-piece is provided upon cach, which, when depressed, causes the locking tooth thereon to become disengaged from the rack. TVhen the finger-piece is depressed shaped plates 16.

Serial No. 199,237.

and moved sidewise toward the desired position, the paper-finger tilts and binds the carrier.v This binding action causes the locking tooth to remain out of engagement with the rack without the operator maintaining the downward pressure upon the finger-piece. A spring normally holds the paper-finger and the locking tooth up in engagement with the rack.

It will be apparent that the paper-finger may also be adjusted along the supporting rail, without the necessity of first depressing the same to free its locking tooth from its engagement with said rack. In view of the arrangement and cooperative relation of the parts disclosed, the finger may he adjusted from one pointl to another by merely applying a pressure at the end of the paperfinUer in the direction of its movement of adjustment. This will first cause the paperfinger to be slightly rotated or tilted about one end of its base to such an extent as to free its locking tooth from the rack, after which a continuation of such pressure will cause the paper-finger to be moved bodily in its direction of adjustment.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure l is a front view, showing the present invention attached to the typewriter carriage.

Fig. 2 is a sectional side elevation of the same.

Fig. 3 is a front detail View of the combined margin regulator and marginal paperfinger.

Fig. 4 is a sectional side elevation, showing the bell and clapper and the margin regulator.

Type-bars 10 strike upwardly and rearwardly against the front face of a platen 11, mounted 0n a shaft 12, journaled in the carriage, which comprises side plates 13 and transverse rails 14.

The carriage travels in letter-feed and return directions upon ball-bearings 15 which are arranged between the rails 14 and The carriage is connected by a cord 17 to a spring drum 18.

The carriage escapement mechanism comprises an escapenem wheel 15) connected to a pinion 20 meshing with a carriage rack 21. Dogs 22 are carried by a rocker 23 eontrolled Iby the keys. From the usual shelf 24 the sheets are fed around the platen'll by a roll 25. Springy paper-fingers 26 bear' upon each side-margln of the sheet. They are of inverted Y-shape, with bent fingerpieces 26a at the upper ends. Each finger or clip is carried by a plate 27 (see Fig. 4), which is slidable along a scale plate 28 for adjustment. The scale plate 28 is carried by a narrower 'bar 29, which, in turn, is secured to the side plates 13 of the carriage frame. The paper-fingers 26 extend across the line of writing and are curved to conform to the periphery of the platen.

The slidingV carrier in each case has two upstanding guiding and supporting-fingers 30, which lie against the face of the scale, and are crimped around vits topedge. The carrier 27 is also turned under the scale and has an offset 30a Fig. 4) behind the lower edge of the same.

A locking tooth 32, extending from a piece 33 which connects the lower branches of the paper-finger, eoperates with the teeth of a rack 34 provided on the lower edge of. the scale 28.

In order to release the tooth 32, the piece 33 with' the paper-fingers 26 is mounted for movement up and down on the carrier 27. The piece 33 is turned under the carrier 27 (see Fig. 2), and there has an opening 35 through which passes a downwardly-extending finger 36 which is formed from part of the carrier. The finger 36 serves as a support for a spring 37, the upper end of which bears against the plate 33, and is held by a proj ection38 on the latter. This spring normally holds the finger-plate up against its carrier with the tooth 32 engaging the rack.

To shift a paper-finger across the machine, the finger-piece 26L may be depressed against the tension of spring 37, disengaging the tooth from the rack 34, and freeing the carrier 27. The paper-finger 26 is guided in this downward movement on the carrier by means of pins 39 mounted upon the carrier and passing through openings 40 on the piece 33. The pins are of such length as to always lock the finger 26 to the carrier for longitudinal movement.

When the finger-piece 26a is depressed, it may be slidden along `with the carrier by a simple push or pull movement, without maintaining ,downward pressure on the finger-piece, because of a clamping aotion between the paper-finger and the earlier. For this purpose the pins 39 are sufficiently loose inthe holes 40 to permit the linger to be tilted when the tooth 32 is out of the rack, until the `part 33 of the finger 26 binds with the carrier at such an angle as to keep the tooth 32 from renga-ging the raek 34, so long as the push or pull pressure is maintained upon the finger-piece 26 of the finger 26. When this pressure is released from the paper-finger, the spring 37 causes the part 33 to be released from the carrier, and the tooth 32 is permitted to again engage the rack 34.

Although the paper-finger may be adjusted from one point to another by first depressing the same at the-finger-piece 26a and then moving it along its-support, as above described, it is also capable of being moved from one point to another in a. somewhat different manner. ln 'View of the arrangement and eoperative relation of vthe parts of the mechanism herein disclosed, the finger may be adjusted by a simple application of pressure at its end, and in the direction of its movement along its support. The effect of such application of pressure would be such as to first impart a slight rotation or tilting movement of the paper-finger in the plane of its movement alongside the platen. T his tilting movement would free the tooth 32 from the teeth of the rack 34, after which, on a continuation of such pressure in the same direction, the finger might be moved to its adj-usted position.

The paper-finger is provided with an index-piece 42 which registers with the graduations 41 on the scale plate 28.

On the front plate 16 of the platen frame -is a margin alarm or bell 43.l A clapper 4-1 is mounted on a pin 45 loosely supported or floated by a coiled spring 46, which, at one of' its ends, is supported on a pin 47 on the rear cross-plate 16 of the platen frame. The clapper pin 45`projects through an opening 48 in the front cross-plate 16 of the platen frame, and lies in the path of a finger 31 on the carrier 27 of the right-hand paper-finger.

The carriage spaces step by step across the machine, and when the end of the line is reached, the finger 31 first tensions the spring 46, and then releases the clapper 44, so that the clapper strikes the bell to sound the alarm. From this it will be seen that the time of the sounding 'of the alarm is dependent upon the adjustment of the paperfinger for the right-hand side of the platen, and that it is only necessary for the operator in setting the fingers" to see that the fingers bear on the work-sheet at the side margins. n

The paper-finger and the Vcombined paperfinger and line-end alarm are simple and inexpensive to make, both paper-finger and carrier being stamped from sheet-metal and bent to form. The bell-clapper is also inexpensive to make, bein simply a metal sphere through which t e pin 45 extends, said pin being fastened to one end of a spring and being thus held in proper position and free to move in any direction.

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

llO

' paper-finger on the carrier with the tooth carrier in any adjusted position along the rail.

2. In a typewriting machine, a platen, a rail extending lengthwise ot' the platen and movable therewith in letter-feed and reverse directions, a marginal paper-linger carrier slidable on said rail, a paper-finger movable` on said carrier transversely of the rail, a

rack extending lengthwise of the rail and i movable therewith, a tooth on the paper- I finger, shiftable into and out of the rack by said transverse.movement of the paperlinger, for holding the paper-linger and its carrier in any' adjusted position along the rail, and a spring for normally holding the 1nI engagement with the rack.

` 3. In a btypewriting machine, a platen, a rail extending lengthwise of the platen and movable therewith in letter-feed and reverse directions, a marginal paper-finger carrier slidable on said rail, a paper-linger movable on said carrier transversely of the rail, a rack extending lengthwise of the rail and movable therewith, and a tooth on the papei-finger, 'shiftable into and out of the rack by said transverse movement of the paperfinger, for holding the paper-finger and its carrier in any adjustable position alongl the rail, the carrier and paper-finger being in pin-and-slot engagement to. maintain the same interlocked for movement together and to guide the paper-finger in its transverse movements on the carrier.

4. In a typewriting machine, a. platen, a rail extending lengthwise of the platen and movable therewith in letter-feed and reverse directions, a marginal paper-finger carrier slidable on said rail. a pa. r-nger movable on said carrier transversely of the rail, a rack extending lengthwise ofl the rail and movable. therewith, and a tooth on the paper-finger, shiftable into and out of the rack by said transverse movement of the paper-finger, for holding the paper-finger and its carrier in any adjusted position along the rail, the carrier and paper-finger being 1n pin-and-slot engagement to maintain the same interlocked for movement together and to guide the paper-finger in its transverse movements on the carrier; said a platen, a travelmg carrlage for type-spac- 130 pin-and-slot engagement .being sufliciently loose to permit the paper-finger to be tiltedon the carrier to be bound therewith when the tooth is disengaged from the rack, so that suchI disengagement may be maintained and the carrier and finger be slid along the `rail by pressure on the paper-finger lengthwise of the rail.

5. In a typewriting machine, a plat-en, a

rail extending lengthwise of the platen and movable therewith in letter-feed and. reverse directions, a marginal paper-finger carrier slidable on said rail, a paper-linger movable on said carrier transversely of the rail, a rack extending lengthwise of the .rail and movable therewith, a tooth on the paperlinger, shiftable into and out of the rack by said transverse movement of the paperfinger, for holding the paper-finger and its carrier in anyvadjusted position along the rail, and means operable by pressure lengthf wise of the rail for maintaining the tooth and rack disengaged and for simultaneously sliding the carrier along the rail.

6. In a typewriter, the combination with a platen, a ltraveling carriage for typespacing said platen, and a guide-frame for said'l carriage comprising front and rear carriage-supporting members, of a line-end alarm comprisinga bell mounted between said members, a clapper for said bell, a support for said clapper, comprising a resilient member secured at one end to .one of said carria e-supporting members and having its c appersupporting end passed through an opening in said bell, a line-enddetermining finger carried by said carriage, and a tappet carried by said bell-elapper and projecting into the path of said finger, so as to be engaged and released thereby to ring said bell when said carriage reaches the line-end position determined by the p0- stion of said finger on said carriage.v

' 7. In a typewriter, the combination with a platen, a traveling carriage for type-spacing said platen, and a guide-frame for said carriage comprising front and rear carriage-supporting members, of a line-end alarm comprising a bell mounted between said members, a clapper for said bell, a support for said clapper, comprising a resil- -ient member secured at one lend to one of striking distance of said bell, a line-end- 1 determining linger carried by said carriage,

and a tappet carried'by said bell-dapper and proJecting through the opposite carriage-sup' orting member into the path of said finger, so as to be enga ed and released thereb to ring said bel whenksaid carriage reac es the line-end position determined by the position of said fingero'n said carriage.

8. Ina typewriter, the combination with ing said platen, and a guide-frame for said carriage comprising front and rear carriage-supporting members, of a line-end alarm comprising a bell mounted between said members and secured lto one of them, a clapper for said bell, a support for said clapper, comprising a resilient member secured at one end to the opposite one of said carriage-supporting members and having its dapper-supporting end passed through an opening 1n said bell, a line-enddetermining finger carried by said carriage, and a tappet carried by said bell-clapper and projecting into the path of said finger, so as to be engaged and released thereby to ring said bell when said carriage reaches the line-end position determined by the position of said finger on said carriage.

9. The combination, with a platen, of a paper-finger to coperate therewith, a support for said finger, the mounting .of said finger upon said support being such yas to permit said finger to be moved therealon in a direction parallel with the axis of said platen, means for establishing a locked relation between said finger and said support at any one of a plurahty of positions rela- -tive to said platen, and means normally tending to render said locking means effective so asto maintain said parts in locked relation when said finger is in any one of` said positions, said locking means being rendered ineffective by a tilting movement of saidnger in the plane in which it is movable along said support whereby, on application of pressure to the end of said finger in the direction of its movement from one of .said positions to another, it may first be tilted to render said locking means inefectifve,and, by continued application of such pressure, moved along said support to an adjusted position in which it will again be locked.

l0. Thecombination, with a platen, of a paper-finger to coperate therewith, a support for said finger, the mounting of said finger upon said support being such as to permit said finger to be moved therealong in a plane parallel with the axis of said platen in either direction, means for establishing a locked relation between said finger 4and said support at any one of a plurality of positions'relative to said platen, and means normally tending to render said locking means effective so as to maintain said parts in locked relation when said finger is in any one of said positions, said locking vmeans being rendered ineffective by either a clockwise or a counter-clockwise tilting movement of said finger in the plane in which it is movable along said. support,

whereby, on application of pressure to the f end of said finger in either of its two d irections of movement alon sald platen, 1t may I first be tilted to ren er said locking means ineffective, and, by continued application of such pressure, moved along said support to an adusted position in' which it will again be loc ed. l

. FRANCIS O. BURRIDGE, E meow/or of the last will and testament of .Lee S. Burwdge, deceased. Witnesses:

EDITH PENRosE, F. GARLAND TUCKER.

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