US1581644A - Typewriting machine - Google Patents

Description

April 20 9 1926.

A, G E. KURUWsm TYPEWRITING MACHINE Filed March 5, 1924 i i i Pat nted Apr. 20, 1926.

'tJ-NITED STATES PATENT oFFICE.

ALFRED s. r. KUROWSKI, or BROOKLYN. NEW YORK. ASSIGNOR ro UNDERWOOD TYPEWRITER COMPANY, on NEW YORK, v. Y., A ooRPoRA'rIoN or DELAWARE.

cv .TYPEWRITING MACHINE.

Application and Maren 1924. Serial No, 696,923.

To allcohom-itmay concern: 1- 316 the wire, and securing the advantage Be it known that I, ALFRED G. Er1 flflowsnr, a cit i zcn of the Ilnitcds tates, residing in Br ooldyiFB o rb'ugh, in the county 5 'of Kings, city and State ,ofNew York, have invented certain new and: useful Improve ments in Typcwriting Machines, of which the following is a specification.

This invention relates to improvements in typewriting machines, and particularly to devices for holding a ,card to the platen of the machine.

One of the features of the invention is the provision of a card holder or guide which may-readily be attached to-and detached from the wing-scale frame. Another feature ofthe invention is to provide improved means for holding the" card-guide securely onthe wing-scale frame.

' Another feature is to have the card-guide inade of a. bar or wire bent to shape and'to have the legs of the guide inserted into sockets or apertures in brackets provided for this purpose, and to provide a means for limiting the length of insertion of said logs into saidvsockets.

Still another feature of the invention is to make the card-guide light and strong, and to have the surface of the guide flaring away from the platen and to serve as a directrix for.- the edges of the advancing and returningcard.

. One of the objects of the invention is to avoid trouble -fromihc card-holder rjgire 3 being accidentally forced out of its seat in the wing;scale structure. The new cardholderwire is supported upon sockets atthe sides of the printing point, each socket in the form of a plate. At the bottom of each 40 socket is bent forward an ear in which is formed a perforation, and the links, of the card wire extend down through the perforations in top and bottom ears, thus giving a secure anchora e, so that the card wire will not get knocked out or its position disturbed in ordinary use. In the card wire isformed a jog to serve as a stop to limit the thrust of thcwire" down into the socket.

The card-holder is made of half round Fire of relatively large radius, the rounded partbeing adjacent to the platen, therelp i!' ?g 'm mum Stiffness for the weighyv that the surface of the wire flares away from the platen and thereby serves as a directrix for the edges of thcgadvancing and returning card. v

The pressure of rolls is transmitted through new brackets to the card-holder itself, which stands close to the front of the platen and bears rearwardly against the wing-scale near the printing point; the cardholder havin portions wlnch extend to-the right and left from the legs to overlie the wing-scale and press back thereagainst; a how or U portion of the card' wire extending up from these right and left portions.

lhis brcssurc of the card wire back against the wing-scale is of advantage in holding the 'cardproperly against the platen.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a front view of the card-holding means shown as situated in front of the platen and with the bearing-roll brackets secured to the type-segment.

Figure 2 is a view, partly in section, on .the line 22 of Figure 1.

Figure 3 is a view, partly in section, on the line 3-3 of Figure 1.

Figures 4, 5 and 6 are, respectively, a

front view, a side view and a plan of the card-guide, showing in dotted lines its shape when its legs are sprung into the brackets, which connect them to the wing-scale frame.

Figure 7 is a detail in section on an enlarged scale of one of the channel-shaped brackets hereinafterdescribed, showing the apertures ,or sockets contained therein.

11 designates the platen, shown in Figure 2 as supported by the carriage 12 by means bf. a platen-frame 13 and arms ,14. ,The platen-frame 13 is shown as having connectedthereunder rollers 15 riding on a shift-rail 16 of a shift-frame'17, which is The wing-scale 20 is shown as situated in the rear of the card guide 21 and connected. to the wing-scale frame 22 by means of posts or brackets 43. The Wing-scale frame 22 is shown as having the usual cross-rail and the side arms 24, which are in engagepivoted at 18 and actuated by rocker-arms frame/11 ment with pins on the shift-frame 17 by means of open bearin s 26 at the ends of said arms 24, which are a 0 connected to the shift-frame 17 by means of a springi27, the

1th pins- The bearing rolls 33 are shown as,carried by spring bearings 35 which-are secured to the type-segment 36.

The wing .scale 20 includes the gagescales 37, 38, which have thereon notches 39. 40 designates the opening in thawing-scale 20, adjacent the printing pint on the platen,

and 41 the strip thereun er, which connects i the two wings of said scale 2Q;

The wing-scale frame 22 -"is shown as having connected thereto channel-shaped brackets 42, which have thereon horizontal .fianges 44 and 45, which are situated one vabove the other with spaces therebetween,

. and which have therein suitable apertures 50 serving as sockets for the legs 46 of the cardguide 21 to extend tl ereinto. The cardguide 21 has therein the apes; 48, which bears against. the platen, and it is prefer ably formed by bending to shape-from a half round'bar orwire, the rounded part of the wire being placed adjacent the platen, and its legs 46 may be sprung into position into said apertures or sockets as shown in Figure 4.

as formed on said legs 46 in the shape of undulations or jogs 49. The-brackets 42 with the flanges 44 and 45 and the double sockets 50 contained therein willdiold the legs 46 of the card-guide 21 verysecurely against dislocation, and, during the o era tion of vthe machine, the reaction to 'Rthe platen against the upper part or apex 48 of the card-guide 21 will tend to press the legs 46 in their sockets 50 against the frontwalls thereof and increase the frictional re-v sistance to sliding of said legs 46 out of their sockets 50l- \Vhen in operation, the middle part4? of the card guide 21-will press the wing-scale 20 holding the card to the platen. By making against the -card, thereby assisting in the card-guide of half round wire of relatively large radius, the advantage of light nes's combined with stiffness is obtained,

and, by applying the card-guide with the ounded side of the bar toward the laten, t ereby causing the surface of the Bar or wire to-flare away from the platen, the ad,-

0 limit the extension of the legs 46into said apertures or sockets 50,'stops are shown ditional advantage is secured that the suredges of the'advancing'and returning cardi' I scope of the invention, and portions oitli' improvements may be used without others. 1IjIaving thus described my invention, I 0 mm:

4 face of the wire serves as a directrix for the Variations may be.- resorted to within the v 1.; In a typewriting machine, the combinationof-a platen,'a carriage for supporting the same, a wing-scale frame infrontof the platen, and means for holding acard, to the platen, said means comprising-a's'cale connected to said frame, vertical flanges on .0

said frame, runways in said flanges, bearing rolls to fit said runways, thereby securing the frame against lateral displacement, combined with means for pressing-said rolls against said vertical flanges, horizontal flanges secured to said frame in pairs, oneabove the other with spaces therebe'tween, sockets in said horizontal flanges, and a cardguide having legs extending each into a pair of said sockets, thereby being secured said frame.

2. In a typewriting' machine, the combination with a platenland a frame adjacent-the front of the platen, of a card-holder including. a length of resilient material bent to form a bow and including a fingerinterm e diate the free ends thereof for engaginga card to hold the same against the platen, said free ends being bent to provide substantially parallel supporting legs, and socket-members mounted on said frame.for receiving the supporting legs, the latter arranged to be sprung tQPOSltlOll for entering said socketmembers an} being self-retaining therein,- due to frict'on caused by the resiliency of 'the how. v

3. In a 1 v g 'pcwritihg machine, the combinetlon with platen and a frame adjacent'thefront of the platen, of a card-holder including a length of half-roundresilient material of relatively large radius bent to form a bow and including a finger intermediate the free ends thereof for engaging a card a to hold the same a ainst the platen, the rounded portion of t e material facing the platen, said free ends being bent to rovide substantially'parallel sup rting, e

socket-members mounted on said frame or 1 receiving the supporting legs, the latter arran ed to be sprung togaosition for entering sai socket-members an being Self-retainin -ient action of said bow,-and undulations. formed on' said legs, said undulations rovidln where y to determine the home posi'tion'of the legs.

no therein, due to friction caused by the res ps ngaging the socket-men:

tyPfi-lnting inachine, he that 1' tion with a platen and a frame adjacent thg front offthe platen, of. a card-holder'including a-length of half-round vresilient mate: I

rial of relatively large radius bent to form a how, the intermediate portion of the bow being formed with a finger for pressing a card against the platen, the rounded portion of the material facing the platen, and a pair of plates lixed to said frame in spaced relation, said plates bent ofltward adjacent their upper and lower ends, thebent portions having perforations therein for the reception of the free ends of said how in parallel relation, said free ends being sprung toward each other and then entered into the perforations, said free ends being selfreta'ining therein, due to the expanding action of the bow.

5. In a typewritinp; machine, the combination with a platen, awing-scale-carrying frame adjacent the front of the platen, and means for pressing the wing-scale toward the platen to grip a yard, of a card-holder including a length of half-round resilient material, of relatively large radius bent intermediate the ends thereof to form a finger, the rounded portion of the finger pressing against the card at a point above the Wing-scale to holdsaid card against the platen, said holder also having portions extending to the right and the left from said finger to engage the wing-scale and press thereagainst to assist said wing-scale in gripping the card, the free ends of the holder extending downwardly adjacent the front of the Wing-scale to provide supporting legs, and socket-members n'i-ountcd on said frame for the reception of said legs, said free ends being sprung toward each other and then entered into said socket-members, said ends being thereby self-retaining, due to the expanding action thereof.

ALFRED G. F. KUROVVSKI.

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