US1063858A - Type-writing machine. - Google Patents

Description

F. A. COOK.

TYPE WRITING MACHINE.

APPLICATION rum) M124, 1910.

Patented June 3, 1913.

UNTD s rens PATET O nion.

1'": A an A. COOK, or HARTFORD, connserrcer, assrqnqa 'ro nnnsnwoop 'rrrn- M Y, or EW Y RK, 3 A mBrQBe -IQN 9 NEW ERSE rrrnwnlrlim MACHINE.

Specification of Letters Patent,

Patented J line 3,, 1913.

App ca n fi ed l e y M. 9m ee e? Na- 54 15.6

To all ic/umi it may concern Be it known that I, FRANK A. Coo1i, a

citizen of the United States, residing in is a specification.

This invention relates to paper deflectors for guiding paper around the platens of typewritii'ig machines.

The main object of the invention isto provide simplified, improved and inexpensive means for accommodating and guiding accurately thick sheaves of sheets easily and elticiently as well'as single sheets. For this purpose, the platen is provided with a paper deflector supported by rocking arms. The rear edge of the deflector under-laps the lower edge of the paper shelf and its forward edge extends past the usual forward feed rolls. The deflector is held against the under face of the platen by springs, and is withdrawn from the platen simultaneously with the pressure rolls. The arms guide the deflector about vertically toward and from the platen.

In the accompanying drawings, Figure 1 is a plan view showing the under side of a platen frame of the Underwood writing machine, equipped with my invention. Fig. 2 is a detail perspective view showing the manner of supporting the paper deflector. Fig. 3 is a sectional view showing the mechanism in normal position, parts being omitted to better disclose the invention. Fig. 4 is a similar view showing the rolls and deflector cast off. Fig. 5 is a fragmentary detail front view, showing the tension device for pressing the rolls against the platen.

The cylindrical platen 1 has an axle 2 by which it is journaled in the ends 3, 4:, of a platen frame. Said ends are connected by a fixed or rigid rear paper shelf 5 inclining dowlnvardly and forwardly to the under part of the platen. Also rigidly connecting said ends is a tie rod 6, and hinged upon said rod is a pair of forwardly extending arms 7, carrying an axle 8, extending horizontally along the under side of the platen.

'On this axle is mounted a series of forward sure-rolls 12. Springs 12 hold the forward mg an axle 11 upon which are rear pres-- and rcarpressurc rolls against the platen. The rollecarrying devices are duplicated at the ends of the platen. By depressing a key 13, the pressure rolls are cast otl' or re leased from the platen, said key being connected by a link 14; to a crank 15 on a cam shaft 16 engaging lugs 17 connected with the arms '7, 10, supporting the pressure rolls. Along the bottom edge of the paper shelf 5 are formed paper guiding tongues 18 projecting forwardly and downwardly through openings 19 formed in a yielding paper dcdoctor or apron 20 lying beneath and cont'ormii-ig generally to the curvature of the platen 1, and having along its rear edge a strengthening head 90. Said paper deflector 20 is supported by depending cars 21 pivotally connected at 22, to the free ends of arms 93 journalml at let, to swing on the rod 6 so that the deflector may more about vertically from and toward the platen. Re-

sure rolls 9.

The free ends of long, flexible springs or yielding fingers 27 secured to the deflector intermediate its rear and forward edges at 28, rest upon the axle 8 of the releasable front pressure rolls to hold or press the ends of the deflector iinlelmndently of each other upward against tho platen. Hooks 29 on the front portion of the deflector catch under the front axle 8. i

W hen the release key 125 is depressed, the cam shaft 1.6 is rocked to swing the roll supporting arms 7, 10, in the usual manner, to release the rolls. The throw of the front axle 8 away from the platen brings the axle against the books 29, to carry the deflector away from the platen; the arms 23 rocking downwardly on the rod (3 until arrested by theengagement of their stops 30 with the cam shaft (3, which also arrests the deflector. The deflector may more down in a similar manner to accommodate a thick shelf of platen.

sheets inserted between the platen and the deflector. The deflector is securely lislCl by means of the rocking arms 23, While it is permitted to adjust itself accurately to the curve of the platen or of the' sheets thereon.

It will be observed that the fingers l8.

projecting'from the lower edge of the paper .shelf 5 guide the sheets into the bite of the rear pressure rolls 12, the fingers yielding to accommodate thick piles of sheets.

The paper shelf may be placed in any desired or usual position relatively to the Having thus described my invention, I claim:

1. In a typewriting machine, the combination- With a platen, feed roll shafts carrying feed rolls and a release keyto cast off the-rolls, of a paper deflector beneath the platen, and having a hinged connection with the platen frame, a yielding support to press the deflector against the platen, and a device on the paper deflector catching over one of the roll carrying shafts to be moved lease the deflector from the platen.

' 2. In a typeWriting machine, the combination with a platen frame, and paper feed roll devices, ,of a paper deflector extending along the platen, arms ]ournalcd upon the deflector, a yielding device to press 'the de-' flector against the platen, and a releasable pressure roll having a shaft which supports platen. frame and pivotally connected to the said yielding device.

3. Ina typewriting machine, the combination With a cylindrical platen and a platcn frame, of a paper guide or deflector curving around the under side ofthe platen and'extending substantially from end to end thereof, independently movable arms pivoted upon the platen frame, said deflector pivoted at its ends to said arms, so that either .end of the deflector may yield, a releasable pressure roll shaft, and yielding devices supported by said shaft for independently pressing the ends of the deflector against the platen.

4. In a typewriting machine, the combi- 'natign of a cylindrical platen and a platen frame, a paper shelf having its lower edge ad acent to the said platen, a curved deflector, pivotal supports for said deflector adjacentthe lower edge of said paper shelf,-

a spring normally tending to press said deflector against said platen, feed rollers normally engaging said platen and connected with said deflector so as to hold said de- M fiector normally against said platen, and

means for casting off said rollers and said deflector and holding them removed from said platen.

5. In a typewriting machine, the combination of a platen, a platen frame, a pair of pivoted arms arranged transversely under deflector.

f 6. In a typewriting machine, the combi nation Wit-ha platen and platen frame, of a paper table on said frame, fingers extending' from said table against which a deflector may lie, a'pivoted ar'm holding said deflector operatively related to said table, a pressure roll having-acasting off mecha nism, and means for moving one edge'of said deflector with said roll.

' j 7. In a typewriting machine, the combination with a platen and platen frame, of a paper table an said frame, a deflector onto which paper is guided from said table, a

pressure roll, casting off means therefor, an v a rm' on said deflector swinging it with said roll, and a spring resting on the axle of said roll. tending to move the deflector the platen.

f 8. In a typewriting machine, the combi nation with a platen frame, paper feed roll devices, and casting off mechanism therefor, of a paper deflector having ears, a paper table engaging said deflector, arms journaled on the platen frame and pivotally connected to the ears to permit a bodily movement of said deflector with reference to said paper table, yielding means to press the deflector against the platen, and a posi tive connection between the deflector and the casting ofl' mechanism flector from the platen.

9. In a typewrlting machine, the combination with a platen frame, a platen and a to release the dedeflector extending 'therealong, of. a paper table engaging said deflector, arms pivotally connected to the deflectorand to the platen frame, a spring topress the deflector against the platen, and'a releasable pressure roll 09mm of! this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C."

against having a shaft to support said spring'and move said deflector positively to and 'from

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