US833285A - Type-writer paper-feeding mechanism. - Google Patents

Description

PAIENTED OCT. 16, 1906.

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` J. ALEXANBBR. TYPE WMTBR PAPER mmm@ MBGHANISM.

APPLIGATION FILED MKB. 9i 1903.

No. 833,285. PATENTED OCT. 16, 1906.

J. ALEXANDER.

TYPE WRITER PAPER FEEDING MEGHANISM. APPLICATION FILED MAB. 9. 1903.

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@XM/61400000 4 wv am to@ a simple movement. for adjusting the pressure of. certain of the narran srnrns PATEN T OFFICE.

JESSE ALEXANDER, OF BROOKLYN, NEW YORK, ASSIGNtHt, BY hfllilSNi? ASSlGNh'lENTS, TO LEE ALEXANDER, llillll ALEXANDER, JR., JESSE ALEXANDER, dlt., AND TYVE ALIQLANDER.

TYPE-'WRITER PAPER-FEEDING NIECHANISWIl Specification ofLetters Patent.

Patented Oct. 16, 1.906.

Original application filed Jun'e 2, 1902, Serial No. 109,925. Divided and this application filed March 9, 1903. Serial No. 146,900.

Be it known that l, Jesse ALEXANDER, a citizen of the United' States, residing at Brooklyn, in the county of Kings, State of New York, have invented certain new and useful improvements in Type-Writer Paper- Feeding Mechanism, of which the following is a full, clear, and exact description.

My invention relates to improvements in type-writers, and particularly to the mechanism for feeding the paper about the platen in that class having a revoluble platen.

This is a divisional application from the application filed by me June 2, 1902, serially numbered 109,925.

The object of this inventionis to effect a proper feeding,l of the paper about the platen or roller and to provide a means for releasing the pressure of the guides uponthe platen by l also provide a means guiding-rollers.

llt is also my object to provide an introductory guide which may be removably attached to the general carriage structure and make the structure compact.

The invention consists in the structure and arrangement' of an introductory guide, a shield or lower guide, and of the presser-rolt ers and the general location and construction of the parts, as will more fully appear on an examination ofthe following specification l and the accompanying drawings.

Figure 1 is a plan view of those parts of the type-writer carriage and guides which embody my invention. Fig. 2 is a plan view of 'the presser-rollers and the releasing and adjusting mechanism therefor. Fig. 3 is a eross-section and end elevation of the parts of a carriage structure embodying my inven tion. Fig. 4 is arear view of the introductory guide, the central part being broken away. Y

1 is the introductory guide by means of which the paper is 'first led to the rear of the platen 2.

3 is the lower guide or shield, which is sel cured to the bar 4 and extends downward slotted at the lower ends, as shown particularly in Fig. 4. therefore be readily attached to or f lctaehed from the bar 4 and the other parts of the car ringe structure to be described by simply adjusting the screws 5 5.

7 7 are side plates which constitute part of the carriage structure and in which the bar 11 finds its support. 8 is alplaten-shaft, which has bearings in these plates 7 7 and is pro vided with the handles or knobs .Q 0.

10 is one of the rear presser-rollers which are provided, three in number. Obviously the roller might be made a continuous one from'end to end, but it is preferred to form it in sections.

11 11 are frontA presser-rollers which are provided to act in a manner similar to the rear rollers 10 for the purpose of holding the paper in close contact'with the platen.

101 is a rod which is carried by the 'side plates 7 7 and carries' the arms100 and 110, by means of which the rollers 10 and 11 receive their sup ort.

102 is a shaft on which the rollers 10 are mounted. The arms 100 are preferably slotted to receive the ends of the shaft 102, so that when the arms are retracted the shaft 102 may be removed, together with the rollers 10 10, if desired.

The rollers 10 and 11 are pressed toward the platen 2 by means of a helical spring, which is preferably formed in two sections 112 and 113, connected together by means of the ratchet 114. The pressure which. these rollers' l0 and 1l exert against the platen may be readily adjusted by simply turning the ratchets 11a to either increase or decrease the torsional effect of the springs 112 113.

150 is a lever which extends upward, so as to be readily reached, This is connected to the shaft 15, which is pivoted in the side plate 7 7 of the carriage. 105 105 are arms carried by this shaft 15, which may extend forward and, being slotted the end, thus engage the ends of the shaft 102. Pressure upon the lever 150 will rock the shaft 15, and thus retract or release the rollers 10 from their pressure against the platen, so that the .paper may be adjusted as desired.

13 13 are spring-finger guides which are provided at the front of the platen for holding the paper securely at the edges. These The introductory guide may IOO . guides are preferably slidably mounted upon printing position, so that it sha l`lie out of the auxiliary platen and shifting rod 131, which is carried by the side plates 7 7, the lower ends of the fingers being bent up to surround the rod.

`14 is an auxiliary guidein the form of an inverted frame, the ends of which may be slippedinto recesses in the bar 140, which-is a art of the stationary frame of the machine-v 01 instance, the type-bar plate. This frame 1li is preferably formed of spring metal, so as to be held in place by virtue of its own tension. 141 is arollercarried by this frame 14 for the purpose of assisting in guiding the paper at or near the central portion. This guide being supported b the machine forms a means-for holding bac the pa ernear the the Way of. the printing-type, which are adapted to operate on a horizontal line visible to the operator.

What l claim is- 1..n,a type-writin machine, a carriagefraniea platen carrie thereby, a rod carried by said, frame at the rear of said platen, a paper-guide shield secured at the rear to said rodand extending downward and upward around the lower side of the platen, a scale carried by the front edge of said shield,` screws threaded into said rod, and a paperintroducing guide removably secured to s'aid rod by said screws.

2. A type-writer-carriage construction including side frames, a platen mounted 'therein, a rod carried by said frames'at the rear of said platen, a shield attached to said rod and extending underneath and in front of saidplaten, an introductory paper-guide comprising a curved member extending between the side frames and at the rear of the platen, l

ed to be engaged b the linger, and a slotted arm engaging the s aft upon which said rollers are mounted.

4. A typewriter-carriage construction including side frames, a platen mounted there- 5 5 in, a rod carried by the side frames and beneath the platen, a spring-pressed shaft at the rear of said platen pivoted on sadiOd, pressure-rollers mounted on said shaft, a sec-1 ond shaft pivoted in carriage side frames, a slotted arm secured to saidsecond shaft engaging the roller-carryin shaft and a lever secured to said second s aft adapted to be. engaged by the finger for retracting said rollers.

5. A type-Writer-carriage construction including'side frames, aplaten mounted therein, a rod mounted beneath said platen,`a pair of spring-pressed arms pivotallycarried by said rod and slotted in the ends, a pressureroller-carrying shaft having its ends resting in said slots in said arms, a retreating-shaft pivoted in said frames'and having an arm with a slotted. portionengagino' the roller,-

carrying shaft and an operatingever carried 7 5 by said retracting-shaft. l

JESSE ALEXANDER.

Witnesses:

ROBT. S'. ALLYN L. VREELAND.

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