US1574824A

US1574824A - Typewriting machine

Info

Publication number: US1574824A
Application number: US696748A
Authority: US
Inventors: Alfred G F Kurowski
Original assignee: Underwood Typewriter Co
Current assignee: Underwood Typewriter Co
Priority date: 1924-03-04
Filing date: 1924-03-04
Publication date: 1926-03-02
Anticipated expiration: 1943-03-02

Description

March 2 1926. 1,574,824 I A. G. F. KUROWSKI TYPEWRITING MACHINE Filed March 4, 1924 Ar-fame Patented Mar. 2, 1926.

uNirso STATES PATENT. OFFICE.

ALFRED G. F. KUROWSKI, OF BROOKLYN, NEW' YORK, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MACHINE.

Application filed March 4, 1924. Serial No. 696,748.

To all whom it may concern:

Be it known that I, ALFRED G. F. KURoW- sin, a citizen of the United States, residing in Brooklyn Borough, in the county of Kings, city and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

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

One of the objects of the invention is to produce a readily detachable card holding or guiding device for exceptionally stiff cards, and to that end means is provided to bring the pressure of heavy bearing rolls nearer to the printing point than is usually the practice.

Another object of the invention is to produce a card-holding bracket having a maximum of strength with a minimum of weight.

Another object is to permit the use of the same bearing rolls that are employed with ordinary card-holding means, hence avoiding the necessity of extra or special rolls for the purpose.

Still another object of the-inventionis to produce a special card-holding bracket, which may readily be connected to a given species of typewriting machines, such as the Underwood typewriting machine, and be simple, durable and inexpensive.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a front view of the card-holding bracket, shown as connected to the wingscale frame of an Underwood typewriting machine. i i V Figure 2 is a view, partly in section, on the line 2-2 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 top view of the card-holding bracket shown as detached from the wing-scale frame.

11 designates a platen of a typewriting machine of usual construction, and shown in Figures 1 and 2 as supported by a carriage 12 through the medium of a platen-frame 13 and arms 14, in co-operation with traveling rollers 15, shown in Figure 2 as connected to the platen-frame 13, and a shift rail 16 carried by a shift-frame 17 shown as pivoted at 18 and actuated by rocking arms 19.

20 designates a wing-scale of usual construction, situated in the rear of a card-holding bracket 21 and connected to the floating or wing-scale frame 22 by means of the brackets 43. The floating or wing-scale frame 22 is shown as having the usual vertical cross-rail 23, and is connected to the shift-frame 17 by means of curved sidearms 24 of usual construction, which engage pivots 25 situated on the shift-frame 17 by means of open bearings 26 at the ends of said arms 24, which are kept in engagement with the shift-frame 17 by means of springs 27, which are connected at one end thereof to pins 28 on the shift-frame 17 and at the other end to projections 30at the ends of the side arms 24 by means of pins or studs 29 secured to said projections.

The wing-scale frame 22 is shown as having made in one therewith the vertical flanges 31 which contain the runways 32 for bearing rolls 33 to fit therein by means'of circular flanges 34. j The bearing rolls 33 are carried by spring brackets 35 which are connected to typesegment 36.

The gage 20 is of usual construction and has thereon

scale plates

37 and 38, with scales or notches 39 at the upper edge thereof,and an opening 40 at the printing point with a strip 41 connecting the two.

wings of the scale under the opening 40,

The wing-scale frame 22 has also made in one therewith vertical flanges 44, to which are secured extensions 45 at the base of the card-holding bracket 21, thereby securing the card-holding bracket in position in front of the wing-scale 20. I v

The card-holding bracket 21 is approximately triangular in shape, and-it projects above the wing-scale 20 and is curved rearwardly towards the platen 11 with apex 46 bearing against the card on said platen.

The card-holding bracket 21 has formed in the middle portion thereof an offset or jog 42 and two laterally-extending horizontal wings 51 at said offset, as shown in Figure 4, to be pressed against the wing-scale 20, as shown in Figure 3, thereby holding the latter to the card on the platen.

The card-holding bracket 21 has therein a comparatively large central opening 47 of the shape of an inverted V situated at the printing .point. and. leaving the sides &8, which form with a part of thef'rame 22 extending therebetween a triangular skeleton construction which is very light for its strength, and, vice versa, very strong for'the' the-portions. of the bracket 21, and with theircircular flanges 34 fitting-into the runways 49, thereby securing the bracket 21 against lateral displacement. The rollers 33 press on thebracket 21, andithe tip 160f said bracket bears against the card, thereby holding the: same. tothe platen 11. The apex. 416' of. the, bracket 21 isflared at its edges away from the platen for guiding cards, and also for. stiffening the sides 180f the bracket near said tip 46.

The bracket 21 is comparatively short, and the runways. 49" contained therein are nearer the. printing. point than the runways 32, above described, which feature is def signed for use withiexceptionally stiff cards or: othermaterial to be. held tosaid platen to prevent buckling of thecard at the middle portion thereof.

The-bracketfll may readily be disconnected from the frame 22 and the rolls 33 returnedto their. usual. positions infront of the runways 32. when cards of ordinary thickness are to be used.

The bracket 21 may easily beformed by punching i-tout of sheet-metal, which is an inexpensive way of producing it, and it may readily.beyattachedto and detached froma typewriting: machine of any species with very; little less of time.

Variations may be, resorted'to within the scope ofthe invention, andportions of the improvements may be used without others.

Having thus described-my invention, I claim:

1. In a typewriting machine,- thecombination-.with a plate-n. and a wing-scale, of a card-holdingdevice associated with the wing-scale adjacent the printing field, and including means for engaging a: card to hold.

" thesame against the platen abovethewingscale, andimeans engaging thewing-scale for pressing the; same. towardthe. platen, saidj last-named means'; being interchange able, from. engagement with the. wing-scale toengagement against the. card-holding device whereby to press; directly against said card-holding device, to move the same and the wing-scale toward. the platen.

2. In a typewriting. machine, the. combination of a-.platen,..a:carriage for:the;same-,.a

wing-scale frame in front. of-the. platen, and means for. holding a card in position on the platen, said means comprising a card-holding bracket, detachably connected to said frame, to be pressed against the card, substantially vertical runways in said bracket and saidframe and bearing rolls to fit said runways, in engagement alternately with the runways ofv saidebracket and said frame, the runways of said bracket being nearer the printing point than the runways of said frame, combined with. a means for detachably connecting said rolls in front of the frame and bracket and means for pressing the rolls against the bracket and the frame, thereby holding the card to the platen.

3. In atypewriting. machine, the combination of a platen, a carriagefor the same, a

I wing-scale frame in front' of the platen, and

means for'holdihga card in position on the platen, said means comprising an approximately triangular card-holdingbracket, detachably connected to said frame, to be pressed against the card, substantially vertical runways in said bracket and bearing rollsto fit said runways, combined with a means for supporting said rolls and pressing the same against the bracket, thereby holding the card to the platen and securing the bracket against-lateraldisplacement.

1-. In. atypewriting'machine, the combination of a platen, a carriage'for the same, a wing-scalefi'ame in front of the platen and means foriholding a' card'in position on the platen, said: means comprising an approximately tri angular; card-holding; bracket, (1 etachably connected to said frame, to be pressed against. the: card, said bracket having'azcentrally'situated opening of the shape of'an inverted'V, substantially vertical runwayszin said." bracket and bearing rolls to fit said runways, combined with a means for supporting said rolls and pressing the same against the bracket, thereby holding the card to the platen and securing thebracket against lateral displacement.

5. Ina typewriting machine, the combination of a. platen,..a carriage for the-same, a wingsc-ale frame infront of the platen, and means for holding a card in position on the platen, said means comprising 'a card-holding bracket detachably connected to said frame, laterally extending wings on said bracket, to be pressed against the scale, substantially vertical: runways in said-bracket and bearing rollssto it said runways, co1nbined withla means for supporting said rolls and pressing thesamezagainstsaid bracket. therebyholding. saidv card to the. platen and secnringtthebracket against lateral displacement;

6'..Inav typewritingf machine, the com-- binationofa platen, a carriage for the same, awing-scale frame. in front of the platen, and means: for holdinga card. imposition.

ion

on the platen, said means comprising a card holding bracket, detachably connected to said frame, substantially vertical runways in said bracket, an offset in the bracket at the upper end of the runways, laterally-extend ing wings in the bracket at said offset, to be pressed against the scale, and bearing rolls to fit said runways, combined with a means for supporting said rolls and press ing the same against said bracket, thereby holding said card to the platen and securing the bracket against lateral displacement.

7. In a typewriting machine, the combination of a platen, a carriage for the same, a Wing-scale frame in front of the platen, and means for holding a card in position on the platen, said means comprising a card-hold ing bracket, detachably connected to said frame, substantially vertical runways in said bracket, a curved portion of the bracket extending above said runways and terminating in an apex, to be pressed against the card, and bearing rolls to fit said runways, combined with a means for supporting said rolls and pressing the same against said bracket, thereby holding the card to the platen and securing the bracket against lateral displacement.

S. In a typewriting machine, the combination of a platen, a carriage for the same, a wing-scale frame in front of the platen, and means for holding a card in position on the platen, said means comprising a card-holding bracket of skeleton construction, detachably connected to said frame, substantially vertical runways in said bracket, a portion of the bracket extending above said runways and terminating in an apex, to be pressed against the card, the sides of the bracket at said apex being flared away from the platen, for guiding cards, thereby also stiffening the bracket, and bearing rolls to fit said runways, combined with a means for supporting said rolls and pressing the same against said bracket, thereby holding the card against the platen and securing the bracket against lateral displacement.

O. In a typewriting vmachine, the combination with a platen, a frame shiftable therewith to different case-positions, and a wing-scale pivotally mounted on the frame for moving toward or away from the platen, of a card-holding device associated with the wing-scale, closely adjacent the printing field, and including a finger engaging the card at a point above the wing-scale, and interchangeable presser-rolls arranged to be positioned directly against the movable frame to move the wing-scale toward the platen or to be positioned against the cardholding device, whereby the pressure exerted by said rolls is brought to bear against said card-holding device and the wing-scale at points closely adjacent the printing field.

10. In a typewriting machine, the com bination with a revoluble platen and a wing-scale movable adjacent the front thereof, of a pair of presser-rolls interchangeable from positions adjacent the outer ends of said wing-scale to positions closely adjacent the printing point, whereby to hold a stiff card securely against the platen at said printing point.

ALFRED o. F. KUROWSKI.