US2386480A - Typewriting machine - Google Patents

Description

Oct. 9, 1945. I w. H. KUPPER TYPEwrzI-TING MACHINE BMW . LIM

, out 'the length of the bar.-`

Patented Oct. 9, 1945 `"S'IATES PTEN'TOFFIC'E' e A' 4` 386,480 t r I j irrrnjwai'rING MACHINE William I-I. "Kapper, Hartford, Conng-ass'ignor `to Royal Typewriter Company, Inc., New York, l \I.Y.,.a corporation of New York y Y "ApplicationMarch 8, 1944,Seral v'BT05525587 5. .Y uf aolims. (01.197-179) I'. This invention relates togtypewriting rnaclrinesy andxmore particularly tto 'mechanism for, chang- `ing'the positions or settings 'of stop elements. y

'In accordance with 'the'invent-ion, Vrnecha-nisin kor 'resettingytabular 1stops includes a resetting bar `of preferably light 'construction and which is mounted 1by novel means so fas-to 'be 'held 'against lateral -deectionwlren operated )to reset a. plurality ofta'bular stops fromtheir operative positions jtorjthei'r inoperative positions. n

Y Aniubject of theinvention is to 'providetabu'larr 'stopfresetting mechanism including a '-bar ori likeresetting element 'extending adjacent a.

gageable with the stops Yfor simultaneously j Inoving them to ,inoperative positions, 'the resetting V'bar having bearing jcontact 'with a rel'atifveily lfxed stop resetting mechanism of the character stated in. which the resetting bar has rotatable'bearing contact 'with 'the supportso as to be, in Iinfect, journa'iled'on saidsuppor't substantially through- A further object of the inventien'is toiprevide 'v'reset'tingmechanism Yof theki-nd referred to. in

connection vwith mechanism yfor setting tabu-'lar stops individualiy operative position, and for moving the stops -intiii/'idually back to inoperative position. Other objects of the invention will become apparent from `a-"reading oi' the followingvas" vdetailed lt'iescrip'tion, 'the appended claims, 'and the laccornpanying drawing, inwhich: Y l Y Figure '1 i's a `fragmentary vertical 'sBCOnal f view `fore and .aft A of. a .typewriter 4eqll'l'lpp'eci` with yular stop mounting Iframe' separated l-frorn'each `partly in vertical section showing a stop` setting push rod and its mounting; and

Figure 8 is a fragmentary `section on fthe 'line 8- 8 of Figure 1 drawn 'fon a reduced scale.

Mechanism constructed in v'actordam'cie' with the invention may 'be embodied in 'variousfkinds of typewriter or like machines. The draw-ing shows a preferred embodiment in associationiw-ith conventional' typewriter partsf'simfi-lar tothose in- `eluded in` the Roy-al Standard typirwri-ter,y the basic' construction fof whichl isti/"ell known. The

conventional'parts illustrated include a main l ments 4by conventional means', not shown. "The 'Figure 2 is. a fragmentary vertical. sectional 'view on an enlarged. scale and showing. a 'tabularstop being set into. operative. l'position by a. stop's`r setting iinger;vr

.Figure i3. .is .a .view Vsimilar to Figure .2 but Y Ashowing a. stop .resetter .bar operated. position onzinenlarged'scale: v

' .figure '5 isa fragmentary perspective- View showing the stop resetter'bar and parts lof a tabframe element A 'on which a -carriage element B is mounted'fo-r letter spacing'and return movecarriage includes end plates I and i 'on which a tabular :stop frame assembly C vis mounted to extend longitudinaliy or 'in the 'direction of carriage travel. `The `stop 'fra-me C is `similar in construction to the `stop 4frame shownpin United l'States' :Patentto 'Myers et al. No. 1,892,071, Vgrantscrews 'I extending' through the brackets 6a and into the rack ybars for holding the parts assembled. Each' bracket '6Aa is provi-ded with a stud '8 which extends through the adjacent carriage end plate and is locked in place by nuts 9;

The upper rack bar 3 is Acurved 'along its .top edge but has nat `si'desa'nd a flat bottom, the

Vlower rack bar, 4` being rectangular. TheY fbotl tom of the upper rac-k bar '3 :and the `top of the lower rack bar '4 are formedY respectively with grooves IIJ and II which register with each other and which aregspa'ced longitudinally ofthe rack bars at letter space intervals.

Mounted on nthe tabular `stop fram-e C is., a

plurality of laterallysettable tabular stops, two

of which are shown at D and D". The tabular stops are similar to individual tabular stops disand i6 which project downwardly alongside op- ,Y

Dosite sides of'thebo'tt'om rack bar 4. Eachtabular 'stop is provided with4 a spring i1 mounted When a tabular stop is set in its operative po- A sition as shown in Figure 2, its rear edge projects toward the back of the machine suilcientlyto be engaged by a stop device comprising a tabular finger 2| when the latter `ismovedfrom its inoperative position shown in Figure l to the operative position shown in dotted lines in Fig' ure 2. Only a portion of the tabular 'finger 2| j is shown, but its construction and mounting en the machine frame is well known and is illustrated for example in the Myers et al. Patent The tabular stops D may be setl in operative `position by mechanism ksimilar to thatdisclosed in the Myers et al. patent referred to above. push rod 22 'equipped with a finger key end 23 is mounted to slide in a guide opening 24 ina cross bar 25 formingl part of or-being fixed with -respect to the frame A. A screw `26 extending through the top of the cross bar and being locked;

in position by a lock nut 21, hasgits lower end provided with-a pin 28 received in a slotr 29 in the push rod 22. The pin 28 cooperates with the end walls of the slot 29 for limiting reciproca.- tion of the push rod 22. The rear end of the rod 22 projects through an opening 39 Vin an ear'3l turned over at one end-of an arm 32 of a bell crank leverv33- pivoted` onthe frame Aas at 34. The other arm 35 of the lever 33 is formed ywith a bifurcated end 36 which straddlesfthe reduced'.-

end 31 of a lever 31a pivoted on the frame A as at 38. The other endofthe lever 31a is pivoted as at 39 to a link48 which extends upwardlyand is pivoted as at 4| to a stop setting lever 42, itself pivoted on -the frame as at 4?.` The -lever 42 includesan upper armor finger.l 44 which is adapted to be rocked rearwardly to engage the lug I6 of a juxtaposed stopD forshifting the'stop from the position shown in Figures 1 and 3 tothe posed between a projection 46'on the lever 42 and an anchoring screw 41 urges -the lever 421to rock to the inactive positionshownin Figure 1.V A' v lower projection 48 onrthe lever 42 acts as a stop engageable with the frameA for limitingrock-L'.;

ing of the lever 42 by the spring 45.

In operation, when it is desired to set any given tabular stop D to its active position, the carriage is moved until that particular stop is ting vlever 42. Then the push rod 22 is pushed rearwardly to rock the lever 33 counterclockwise, rock the lever 312L clockwise, as viewed in Figure 8, and rock the stop setting lever 42 counterclockwise as viewed in Figure l, thereby causing@ the finger, to engage the lug I6 of the juxtaposed stop and move the latter to itsoperative position.

Meansrareprovided for resettingA any individual stop D from its operative position lto its vin-v operative position. A push rod 49 equipped with a key end 50 is mounted to slide in a guide opening V5| in the cross bar 25, AV screw- 52 extending` through the tcp of. the vcross bar and being held against turning by a lock nut 53 has its 4 position shown in Figure 2. A spring 45 interets.5

lower end formed as a pin 54 projecting into a slot 55 in the rod 49. The pin 54 cooperates with the end walls of the slot 55 for limiting to and fro movement of the push rod 49. The rear end of the push rod 49 engages an ear 56 formed on yone arm 51 of a bell crank lever 58 pivoted on the cross bar 25 as at 59. The other arm 68 of vthe lever 58 is connected to a link 6|, the rearv end of which is connected to an arm 62 on a bell crank lever '63 pivoted on the main frame as at 64. The other arm 65 of the lever 63 is connected by a link 66 to one arm 61 of a lever 68 pivoted as at 69. The other arm 10 of the lever 68 is offset rearwardly to extend under an arm 1| of a lever 12 pivoted as at 13. The other larm 14 of the lever 12 engages a downwardly extending finger 15 on a rock frame 15 pivotally mounted as at 11. A shouldered stud 18 journals a roller 19 `on the rock frame 16. A spring 86 interposed between an ear 8| on the rock frame 16 and a fixed ear 82 urges the rock frame to its inoperative position wherein the -rol1- er 19 is disposed to the rear of any stop D set in operative position. l 'n When it is desiredto reset an individual stop D in its inoperative position, the carriage is moved so as to position that particular stop directly in front of the roller 19. Then the DuSh rod 49 is pushed rearwardly so'as to rock the lever 58, move the link 6| forwardly, rock the lever 63, pull down -on the link 66, and. rock the lever 68, in turn to rock thelever. 12.counter clockwise as viewed in Figure l. This will move the nger 15 rearwardly so as to rock the frame 16 and move the roller 19 forwardly and against the stop D which is then pushed forwardly to its inoperative position.

In accordance with the invention, means of novel and improved construction are provided for simultaneously moving to their inoperative positions all tabular stops D which have been set in their operative positions. The resetting means includes a universal resetting bar which is light but is so mounted that it cannot be deflected laterally even when it is operated to reset simultaneously a `large number of tabular stops D. In the form shown the rack bar 4 has its vfront vertical side or face longitudinally grooved as at 83 with the wall of the groove being cylindrical or concave. `A rockableY universalV resettery bar 84 extends along y-in the groove 83 and is provided at its opposite ends with pin ends 85 and 86 respectively journalled in. bearings 81 and 88 formed on the end brackets 6a. The resetterrod 84 has a convex surface89 curved to. match the curvature of thegroovedwall 83 softhatthe bar surface 89 has bearing'contact or engagement immediately behind the iinger 44 of the stop set-'F160 with the groove wall substantially throughout the length of the bar 84. A lip part or edge 84a on lthe bar 84 is adapted to engage the lugs I6 of outer surface portion 89 is segmental and extends only partially around the axis Yof the bar. The bar 84 is undercut as at 84h' '(see Figures 2 and 3) vto provide a, longitudinally extending depression which forms the resultant lip 842|.` 'This construction provides .maximum stiffness andoperating stability of the resetting mechanism with a minimum weight of the parts.`

Means for rocking the resetter bar 84 includes an arm 90 extending down from one end of the bar and being provided with an extension 9| con` nected to one end of a spring 92, the other end of which is anchored on a cover strip 93 secured to the top rack bar 3 by'screws 94, the arrangement being such that kthe spring v92 urges the resetter -bar 84 to its inactive position shown in Figures 1 and 2. For moving the resetter bar to its active position'shown in Figure 3, a iinger lever 95 is pivoted on the top rackrbar 3 as at 96 and. is provided with a downwardly extending projection 91 engaging the arm 90 on the resetter bar 84. f

In operation, to reset a plurality of tabular stops D simultaneously from their operative pof sitions shown in Figure 2 to their inoperative positions shown in Figure 3, the finger lever 95 is depressed so as to rock the resetter bar 84 clockwise from its Figure 2 position to its Figure 3 position. The bar edge tilla will engage and move the lower lugs I6 of all of the stops D to be reset thereby shifting the stops to their inoperative positions. It will be apparent that when a large number of tabular stops are to be reset a considerable force must be exerted on the stops considered collectively in order to overcome the total frictional resistance due to the holding action of the several springs l1, This quite large operating force reacts transversely against the resetting bar 84 and tends to deect it laterally. I-Iowever, the bearing contact of the groove wall 83 with the rod surface 89 substantially throughout the length of the rod, that is in an intermediate zone as well as at its ends, prevents deflection of the\rod even though the latter is light and of quite small section.

pair of upper and lowergrooves and being shift- 'J able from inoperative to operative positions and vice versa, each stop comprising spaced lugs embracing one of said rack bars for limiting shifting of said stop; a .longitudinally extending groove in said one of said rack bars having a concave wall; and a universal stop resetter bar rockable for shifting tabular stops from operative to inoperative position, said resetter bar being sector shaped in cross section and having a longitudinally extending convex segmental outer surface portion in bearing engagement with said groove wall, said resetter bar being undercut to provide a longitudinally extending depression which receives the lugs of tabular stops which are in operative positions, said undercut forming a resultant lip at said surface portion engageable with the lugs of tabular stops which are in operative positions for moving said tabular stops to inoperative positions upon rocking of said resetter bar.

2. In tabulating mechanism for a typewriter or like machine including a frame and a carriage movable thereon for tabulating operations, a stop frame comprising upper and lower rack bars mounted on said carriage and being provided on their lower and upper faces respectively with transverse grooves spaced apart at letter space intervals; a plurality of tabular stops mounted in each pair of upper and lower grooves and being shiftable transversely of said bars from inoperative to operative positions and vice versa, each stop comprising spaced lugs embracing the lower rack bar for limiting shifting of said stop; a stop device mounted on said frame for cooperation with a tabular stop set in operative position; means mounted on said frame for engaging and moving a selected tabular stop from inoperative to operative position; means mounted on said frame for engaging and moving a stop from operative to inoperative position; a longitudinally extending groove in said lower rack bar having a concave wall; and a rockable universal stop resetter bar j ournalled on said carriage, said resetter bar being sector shaped in cross section and having a longitudinally extending convex segmental louter surface portion in bearing engagement with said groove wall, said resetter bar being undercut to provide a longitudinally extending depression Lwhich receives the lugs of tabular stops which are in operative positions, said undercut forming a resultant lip at said surface portion engageable with the lugs of tabular stops which are in operative positions for moving said tabular stops to inoperative positions upon rocking of said resetterbar for shifting said tabular stops to inoperative position upon rocking of said resetter bar.

WILLIAM H. KUPPER.

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