US1799182A - Typewriting machine - Google Patents

Description

April 7, 1931.

G. M. SCHERER 1,799,182

TYPEWRI TING MACHINE Filed Oct. ll, 192'? 2 Sheets-Sheet 2 fr' 5w Patented Apr. 7, 1931 GILBERT M. SCHERER, OF NEW YORK, N. Y.,

PANY, INC., OF NEW YORK, N. Y.,

ASSIGNOR TO ROYAL TYPEWRITER COM- 4A CORPORATION NEW YORK TYPEWRITIN G MACHINE Application filed October 11, 1927. Serial No. 225,480.

This invention relates to means-by which the usual margin stop may be released from the stop bar and held by a part of the frame of the machine while the carriage and stop bar are moved independently of the said stop. This enables the stop to be adjusted to any desired position since if the stop is to be set at any particular letter space position of the carriage, it is only necessary to operate the releasing mechanism, move the carriage to the desired letter space position and release said mechanism, allowing the'stop to again engage with the stop bar.

Either of the ordinary margin stops may be adjusted readily and quickly to any desired letter space position. The key which releases the margin stops from the stop bar `is also adapted to roperate the usual lever which releases the carriage from the escapement mechanism and permits it to be moved in either direction to the desired point'.

Further features of the invention will be apparent from the following detailed description and will be set forth in the appended claims.

In the drawings:

Figure 1 is a top plan View of a portion of the carriage showing the margin stops and means for releasing the same.

Figure Qis a. rear view of a margin stop and the associated detent mechanism on the frame of the machine with the parts in normal position.

Figure 3 is a similar View with the margin stops shown in vertical section and the parts in operative position.

Figure 4 is an end view of the typewriter carriage showing the general relation of the invention thereto.

Figure 5 is a top plan View of a margin stop and supporting stop bar with the usual central stop in horizontal section and the two stops in operative engagement.

Figure 6 is a similar view showing the different position of the parts.

Figure 7 is a rear view ofthe stop bar with part thereof in vertical section and the release bar in normal position.

Figure 8 is a similar view with the release bar in its operative position.

release lever This invention is applicable to a standard form of typewriting machines but for convenience has been illustrated in connection with the standard Royal typewriter.

There is illustrated a platen A mounted in Side frames B of the carriage, which frames are connected by a tie rod C. An escapement wheel D is mounted in thc main frame E and has rigid therewith a pinion F which meshes with a rack G carried by a bail l'l h aving arms K pivotally supported on the side frames of the carriage. A bent lug L on the carriage release lever M underlies one of the arms K so that by operation of thil the bail is lifted and the rack G disengaged from the pinion F to permit movement of the carriage in either direction. There is also shown in Figure l the usual tabulating stop bar N.

The margin stop bar l is supported at its ends in the side frames B of the carriage and has a central longitudinal slot in which slides a relea bar 2. rThe stop bar carries pins 3 which pass through inclined slots -L in the release bar so that an endwise movement of the release bar from the position shown in Figure 7 will cause the bar to ride upwardly until it projects beyond the edge of the stop bar as shownin Figure 8. This endwise movement is brought about by the following mechanism.

The finger lever 5 is pivoted to one side of the carriage by the same screw 6 which holds one end of the tie rod C in position. This lever has a bent over arm 7 connected by'a link 8 to one arm 9 of a bell crank lever pivotally supported on the carriage and having its other arm l0 engaging a cut-out ll in one end of the release bar 2. A spring 12 which has one end fast to a fixed support on the carriage and the other end passing through a hole 13 in the release bar returns the lever to normal position when pressure,

is removed from the finger lever 5. The lever 5 also has a pin 14 projecting outwardly and overlying the carriage release lever M so that when the lever 5 is operated, not only will the release bar 2 be moved to its operative position, but the carriage will be released from its escapement mechanism so that i side members connected b it may move freely in either direction. It will be also observed that the carria e release lever M may be operated indepen ently of the margin stop release lever 5.

The margin stops illustrated are in many respects similar to those previously known and used in the Royal machine and each stop comprises a body portion 15 of eneral trough like form having ears 16 an 17 at their ends which project below the stop bar and are connected by pins 18 and 19 respectively. The thin metal member 20 has its ends hooked about the pins 18 and 19 and lies in contact with the lower edge of the stop bar. The stop is held in adjusted position on the stop bar b means of a latch member 21 provided wit a nger piece 22 and having ears 23 intermediate its ends which are pivoted to the stop on an axis 24. The latch member also has a downwardly extending tooth ortion or detent 25 which engages between the teeth 26 of the stop bar 1 and holds the stop in its adjusted position. A spring 27 coiled about the pivot 24 fands to return the latch 21 to the Figure 2 position. Between the body of the stop and the latch member thus described and pivoted on the pivot 24 by means of ears at each side thereof is a bail member 28 normally forced downward by a. ring 29. One Aend of this bail member slias a downwardly extendin arm 30 provided with a in 31 at its en which fits in an elongate slot 32 near one end of a detent member 33 which comprises va cross bar 34 terminating in a sharp e ge. This detent member is pivoted on the pin 19.

The engaging portion of the stop is an ad- 'ustable screw 35 carried by the stop memr above described and locked in adjusted position by a set screw if so desired. The sto also includes mechanism for automatical y setting the stop surfaces a distance away from each other equal to one' letter s ace, such mechanisms being in themselves o d as shown for example in patent to L. C. Myers No. 947,450 granted Jan. 25, 1910. This mechanism comprises in the present instance an adjustable member 36 held in position upon the stop member by a screw 37 passing through an elongated opening in the member 36. Upon this member 36 is pivoted by a screw 38, an interponent 39 having an end 40 which may be moved into a position between the stop 35 and the center stop 42 on the frame of the machine. The interponent has an upturned end 41 having a cam portion in position to be engaged by the g'latch 21 when it is pressed downward to rclease the stop from the stop bar. Whenever A,the stop is released either manually or by the release mechanism, this interponent will Vbe swung to the Figure 6 position.

The detent member 33 is adapted to cooperate with detent mechanism on the frame of the machine which comprises a bracket 43 havin offset flangia 44 which is fastened to a fixe part of t e machine by screws 45 which pass through openings 46 in said bracket. Two do s 47 are mounted on pivots 48 and have t eir facing ends 49 separated by a slight space. A downward extension of each dog 47 carries a in 50 which rojects through a slot 51 in the racket memer. A spring 52 has a central portion coiled about a stud 53 carriedby the bracket and the ends 54 thereof engage the ins 50 to hold the dogs 47 normally in the igure 2 positlOll.

When the parts are in normal position such as shown in Figure 2, the mar in stop is locked to the said bar 1 and the etent 33 is in a plane above the ends 49 of the dogs 47.

.When it is desired to set a margin stop, the

endwise position. This will cause the release bar to rise to the position shown in Figures 3 or 8 and in this movement it will engage with the detent-25 and lift the same out of engagement with the teeth 26 of the stop bar. At the same time the release bar 2 will enga e the bail 28 and rock the detent member 33 ownward, bringing the bar 34 into the Figure 3 position so that as the carriage is moved in proper direction, the detent will engage one of the dogs 47 and cam the same downward against the tension of the sprin 52 until the end of the detent comes into t e s ace between the ends 49 of the dogs. In t is position it will be held so lon as pressure is maintained on the lever 5 auf at this time the carriage can be moved independently of the stop to any desired letter space osition. The same releasing movement o the latch 21 above mentioned will cam the interponent 39 to the Fi ure 6 position to automatically set the marginal stop at one letter space distance from the center stop 42. As soon as ressure on the finger lever 5 is released, the etent 25 will move downward into en agement with the stop bar 26 for holding t e stop in-adj usted position, and the spring 29 will return the bail 28 and detent member 33 to the figure 2 position, disengaging the same from the stops 47. Thus a marginal stop will be locked t0 the stop bar in position to stop the carria e in the selected letter space position.

n other words, let it be assumed that the machine frame is provided with the usual scale and the carriage with a cooperating pointer, and that it is desired to set the left hand margin stop at the point 20 in said scale. The stops are in locked en agement with the rack bar and the movable etents on the stops are disposed above the detent mechanism so that neither detent will engagesaid mechanism when the carriage is moved. The operator depresses the margin stop release at the same time will move the release bar to 1ever`-.5l which-Will` release the latches'of'ebo'th v margin. stopsfrom theirack. and *simultanem-ouslycooperate'withthe carriager'eleaselever 'M mechanism. :Simultaneously with the release .f 1.of;thef,latches,-thesdetents willl be wmoved to release the carriagefrom itsescapement downwardlyV into a position whereby" either A f one of themfwill engage thefdetent mechanism vil() ".uponemovement ofthe-carriage.

.The operator-without; releasing .thelever and the .ke M, moves the carriage tothe right .until the etent of the left hand stop engages the detenty mechanism. The l enga ement between the detento the left han rstop and .said detent f mechanism prevents further movement'of the stopvwith the carriage, but .permits the carriagev to .be further. `moved 4.by the operator. in' the same 'directions .-untiliY the gpointer on the carriage lregisters with the `number -on thescale. Theleveris then "released by the opeatorand consequently-all ofthe partswill bereturnedto theirr initial favo .posite `tionaof the machine, the carriage -wil ybe although the carriage Will vbe moved in the op- 'rection. l It is obvious that the inventonmay be aplplied to different types of machines-and that various-details thereof may modifiedso far was the actual structureis concerned without in anyway `departing.from the s` iritof the invention, which is to be regarde as limited onlyby the scope ofthe appended claims.

\ I claim asinyl invention :A

1. In a typewritingmachine havin a margin stop bar, a marginstop adJustab ethereon, and carriage release mechanism; the com' .bination .of meansffor releasing the: margin stop from Vthe bar which `comprises-a release bar mounted on and movable longitudinally ofthe Ystop bar,imanual means for operating ytherelease bar, and means whereby said manual-means also operates lthe* carriage release '.mechanism.

.2. VIn-.a typewriting machine havin a-margin stop bar, .a margin'stop adj ustab le .thereon,iand.a `latch carried by the stop for holding bary which comprises a release barmounted on and .movable both transversely and longitudinally of the stop :bar to releasasaid latch,

' and manual means `for'operating said.y release bar.

l3. In a typewriting machine having a marvgin stop bar, a margink stop adjustable thereybar `mounte :the endwise `movement of bar having a slot-extending len of, amargin stop on saidbar, a atch for holdz ingzsaid .gage t e detent mechanism.y

stop duringmovement `of andmovable both transverselyand lon itudi- .nally of vthe stopbar to release said lato ,adetent carried by said stop-and moved to operal' tivezposition when the stop is released, and detent .mechanism on the: frame of the` machine .fior-engaging. said detent.

4. SIna typewriting machine, a margin stop bar having aa slot extending len hwise thereof, avmargm'stop onzsaidbar, a atchfor holding said.v sto in adjusted` position, a release barzmounte ing said elease bar endwise to `move said-latch .,tof'releasing position vand permit .adjustment :of -saidstop.

v5. In atypewritingmachine, a margin stop bar'having a slot extending lengthwise thereof, a-margin stopon said bar, a latch for holding vsaidstoi in adjusted position, a release in said slot, means for moving said IreleaseA harendwise, andzmeans `whereby it inanotherdirection.to'release said latch.

6. Ina typewritingmachine, a margin stop sto in ad; usted position, a release barzmounte insai s1ot,.a detent carried by said stop, detenty mechanism on the frame of the=machine,:and meansfor moving said release Vbar tof'release said latch and .simultaneousl `move the..detent intov position toren- 17. In' a typewriting machine, `an endwise movable margin stopbar, amargm stop thereon, means forxnorm'a'lly holding vthe stop inlinedV relation Ato the bar, a detent on said stop, detent lmechanism on the frame of the machine including spring presseddo s, and means `for releasing said stop. fromt e barand for simultaneously moving the detent.

4into position for engagement between said dogs upon the movement of the bar in either direction'.

in-said slot, and means for movsaid baralso `moves hwise there-- a main frame,

8. "In-'atypewriting machine, the combination with -a main frame, V.of a carriagemovable. onv said main frame, an escapement mechanismffor the carriage, means :for releasing the carriage' from the'escapement mechanism 'includingy a 'carriage release. key, af .margin v stop bar movable with the carriage, a margin stop adjustably mounted on the bar for movements longitudinally:thereofyaflatchcarried .it in adjusted position; lthe combinationfo'f meansfor releasing the-margin stopfrom the `by .the'sfopf for locking thesame `inang7 position of'adjjustment along the bar where y said stop will bel normally moved with thel ,car-

anda. detent mechanism engageable lbyfsairi the carriage in one izo fdirection to retain said stop against further movement with the carriage during said carnage movement 9. In a typewriting machine, the combination with a main frame, of a carriage movable on said main frame, an escapement mechanism for the carriage, means for releasing the carriage from the escapement mechanism including a carriage release key, a margin stop bar movable with the carriage, a margin stop adjustably mounted on the bar for movements longitudinally thereof, a latch carried by the stop for locking the same in any position of adjustment along the bar whereby said stop will be normally moved with the carriage, a detent mechanism, a detent movably mounted on the stop and normally disposed out of the path of engagement with said detent mechanism, and means for releasing the latch from the bar including an actuating lever cooperating with the carriage release key to simultaneously operate the carriage release mechanism and for moving the detent into the path o'f the detent mechanism whereby the stop will be retained against further movement With the carriage during the carriage movement in one direction.

10. In a typewriting machine, the combination with a main frame, of a carriage movable on said frame, an escapement mechanism for the carriage, means for releasing the carriage from the escapement mechanism including a carriage release key, a margin stop bar movable with the carriage, margin stops independently adjustable on the bar, a latch carried by cach stop for locking the sto in any position of adjustment along the ar, means for simultaneously releasing the latches of both stops from the bar including an actuating lever cooperating with the carriage release key to simultaneously operate the carriage release mechanism, and a detent mechanism located intermediate said stops and engageable by one stop only during movement of the carriage in one direction to retain the said stop against further movement with the carriage during said carriage movement.

11. In a typewriting machine, the combi-' nation of a carriage and an escapement mechanism therefor, and manually operable means for releasing the carriage from the escapement mechanism, said carriage including a margin stop bar and a margin stop adjustable thereon; and manually operable means for releasing the margin stop from the stop bar and arranged in cooperative relation with the carriage release means whereby both release means will be operated simultaneously upon operation of the stop release means, the carriage release means being operable independently of the margin stop release means.

12. In a typewriting machine, the combination of a carriage and an escapement mechanism therefor, and means including a manually operable lever for releasingthe carriagel from the escapement mechanism, said carriage including a margin'stop bar and a margin stop ad]ustable thereon; and means including a manually operable lever for releasing the margin stop from the stop bar and arranged in cooperative relation with the carriage release lever whereby both release means will be operated simultaneously upon operation of the stop release lever, the carriage release lever -being operable independently of the margin sto release lever.

13. In a typewriting mac ine, the combination of a frame, a carriage and an escapement mechanism therefor, a center stop, and

manually operable means for releasing the carriage from the escapement mechanism, said carriage including a margin stop bar and a margin stop adjustable thereon; manually operable means for releasing the margin stop from the stop bar and arranged in cooperative relation with the carriage release means whereby both release means will be operated simultaneously upon operation of the stop release means, the carriage release means being operable independently of the margin stop release means, detent mechanism other than the center stop and mounted on the frame of the machine, and means carried by the margin stop for engaging said detent mechanism when said margin stop is released from the bar.

14. In a typewriting machine, the combination of a frame, a carriage and an escapement mechanism therefor, a center stop, and means including a manually operable lever for releasing the carriage from the escapement mechanism, said carriage including a margin stop bar and a margin stop adjustable thereon; means including a manually operable lever for releasing the margin stop from the stop bar and arranged in cooperative relation with the carriage release lever whereby both release means will be operated simultaneously upon operation of the stop release lever, the carriage release lever being operable independently of the margin stop release lever, detent mechanism other than the center stop and movable on the frame of the machine, a detent on said margin stop normally out of the path of the detent mechanism, and means whereby the margin stop release means moves said detent into operative position for engagement with the detent mechanism to stop further movement of said margin stop.

In testimony whereof, I have hereunto subscribed my name.

GILBERT M. SCHERER.

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