US580953A - Type-writing machine - Google Patents

Description

J. B. PRICE;

PatentedApr. 20, 1897.

M 6 10 4 g F fl i0 m a W u TYPE WRITING MACHINE.

(No Model.)

Wroessefi 1 I r l JOHN 'I). PRICE, OF WOLLASTO'N, MASSACHUSETTS, ASSIGNOR TO Tlllfl MAN ll. '\'l,"li- \X TYPE\VRITER COMPANY, OF NElV JERSEY.

TY PE-WRlTlNG MACHINE,

SPECIFICATION forming part of Letters Patent No. 580,953, dated April 20, 1897.

Application filed ifovemherZO, 1896. Serial No. 612,319. (No modelJ To all whom it may (NHL-(16772,:

Be it known tha-tl, J out I). PRICE, of W 01- laston, county of Norfolk, and State of Massachusetts, have invented an Improvement 5 in Type-lVritin g Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawin representing like parts.

IO My invention is embodied in atype-writing machine, and relates especially to the mechanism for supporting and controlling the inle. ribbon, being applicable to machines of the well-known Remington type.

The invention consists mainly in a novel construction of the bearin g for the ink-ribbon spools and in details of construction of the mechanism for operating the inkribbon spools and of the guards below the papercarriage for supporting'the letter-gage and protecting the platen and paper thereon from the ink-ribbon.

Figure 1 is an end elevation of a sufficient portionof a type-writing machine to illustrate a portion of the improvements forming the subject of this invention; Fig. 2, a sectional elevation on the linen: of Fig. 1; Fig. 3, an end elevation of one of the hangers or bearings for the shaft of the ink-ribbon spool;

3o Fig. 4, an underneath plan of a portion of the paper-carriage; and Figs. 5 and 6,.sectional details thereof on lines of, Fig. l, and 1 Fig. 5, to be referred to.

The general construction and arrangement 5 5 of the working parts of the machine may be and are shown as substantially the same as in the well-known Remington machines, and do not therefore require to be illustrated or described .for an understanding of the present 40 invention.

The ink-ribbon spools a are each connected by a spline with its shaft 1), which-is supported in bearings formed in lugs A A on the under side of the top frame-plate A of the machine.

In order to securely support the spool-' shafts Z) in their bearings and at the same time permit of their ready detachment therefrom without the use of tools of any kind, the said bearing-1n gs A are provided with slotted .recesses .or notches. c of proper size to receive and support the spool-shaft without contining the same against latera-r sisplacement.

In order to retain the said shaft in its bear-- ings, it is providedat one end with a collar or enlargement bifi Xed thereon,and'the bearinglug A is correspondingly counterbore l, as shown, so that when the collar Z1 is seated in said counte'rbores the shaft is restrained from lateral movement, but'is free o rotate in its .bearing in the lug A The opposite end of the spool-shaft Z) is extended beyond its corresponding bearing-lug and provided with a head or enlargement b,

between which and a collar 7", loose on said shaft, is interposed a sprin The bearinglug A is counterborcd like the one A and when in working position the spring 11 tends to retain the collars b b in their corresponding counter-bore, and thus retains the spool securely in its bearing, \Vhen, however, it is desired to remove the spool or spool-shaft from the machine, it is necessary only to press the end I) of the shaft against the stress of the spring I)? sufficiently to carry the collai b at the opposite end of the shaft, out from the counterbore, when the said end of the shalt can be removed laterally from its bearingnotch in the lug Aiand the other end may then be readily withdrawn from the bearing A The spring U may be made to press the collars against their bearing-surfaces in the lugs A A sufficiently to afford a slight. frictional resistance to the rotation of the spool shaft and spool, so as tomaintain the ink-ribon in the'desired state of tension. The spool-shafts are provided with the usual beveled'gears d to enable one or the other of them to be intermittingly rotated to advance the ink-ribbon, as the writing proceeds, in the usual man- 0 ner,one of said gears being engaged by a corresponding heveled gear e on the longitudinal shaft 6 when it is desired to feed the ink-' ribbon in one direction, while the gear on the other spool is engaged by the corresponding 5 beveled gear on said shaft e when it is to feed the ink-ribbon in the pposite direction in the usual manner. The said'sha'ft e is longitudin ally movable to engage a gear at one. end thereof with that of the corresponding spooltoo shaft and at the same time disengage the .gear at the other end, and it is controlled as the point struck by the type.

to its engagement by means of a key f, pivotally supported atf in a lug f depending with the shaft 6 said key may he slipped back on its pivot and engaged with its supportinglug, so as to retain it out of engagement with the said shaft, as shown in dotted lines, Fig. 1.

The shaft 6 is rotated in the usual manner bymeans of a beveled gear g, splinedthereon and meshing with a beveled gear 72 connected with the ratchet-wheel a", loose on the shaft. of the spring-actuated carriage-feed disk It. The said ratchet 2' is rotated in one direction only (namely, the direction of movement of the disk 7a in feeding the carriage as the writing proceeds) by means of a pawl m, pivoted on said feed-disk and engaging with the teeth of said ratchet 7;. p r

In order to prevent reverse rotation of the ratcheti and consequent slackening of the ink-ribbon when the disk 7: is turned in the opposite direction, as when the carriage is moved back for the beginning of a line, a retaining-pawl n is provided, engag in g with the teeth of said ratchet i and pivotal] y supported upon a bearing-n projecting from the framework at the rear of the feed-disk 7c.

The paper-carriage p; a portion only of which is shown, is provided with the usual supports 2- for the letter-gage 15, said supports 1' having the usual projections or guards r for preventing contact between the paper over the platen and the ink-ribbon except at Said gage-supports and ink-ribbon guards as heretofore constructed have. been adjustably fastened upon lugs it, connected with the paper-carriage, by means of clamping-screws, and much annoyance is frequently caused by the lateral or pivotal movement of said supports r at'their point of support, such movement throwing the letter-gage out of proper position. In' order to avoid this diiiiculty, the lugs a are in accordance with the present invention provided with tongues M, which fit closely in and have a long bearing engagement with the sides of slots 1' in the gagesupports 7", (see Figs. 5 and 6,) thus preventing possibility of lateral or angular displacement of the latter.

\Vhen it is desired to remove either inkribbon spool, the actuating-shaft e must be in such position as to disengage its gear from the gear of the spool-shaft tobe removed, and

the spool-shaft can then be easily removed I from its bearings, as before described.

I claim 1. Inatype-writingmachine, the combination of the ink-ribbon spool-shaft having at one end a fixed collar and at the other end a longitudinally-movable spring-pressed collar, with bearing-lugs slotted to admit of lateral insertion and removal of said shaft, and counterbored to receive said collars thereof, sub stantially as and for the purpose described.

2. The combination of the ink-ribbon spoolshafts, each provided with a beveled gear, of a longitudinally-movable actuatin g-shaf t provided with beveled gems to cooperate with those of the ink-ribbon shafts one at a time, a pivotally-supported key having its free end notched forv engagement with grooves in said driving-shaft, said key being slotted at its point of connection with its pivot whereby said key may be thrown out'of engagement with the grooved actuating-shaft and supported by engagement with the frame, substantially as and for the purpose described- 3. The combination of the supporting-arms 'r for the letter-gage and ink-ribbon guards provided at one end with a parallel walled slot, of the supporting-lugs for said arms providedwith a tongue entering said slottoprevent lateral or angular displacement of said arms, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subseribin g witnesses.

JOHN B. PRICE.

lVitnesses:

J os. P. LIVERMORE, JAS. J. MALoNEY.

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