US938059A - Keyboard-lock for type-writers. - Google Patents

Description

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W. P. KIDDER.: KEYBOARD LOOK FOR TYPE WRITERS. APPLIOATIQK'IILED. JUNE 24, 1905.

UNITED STATES PATENT OFFICE.

WELLINGTON -PARKEB KIDDER, 'OF BOSTON, MASSAGHUSETTS, ASSIGNOR TO jPeLRKER -MACHINE COMPANY, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

KIDDER, residing at Boston,

' skilled in the art to which it appertains to make and use the same.

, ThiS invention relates totypewriting ma- I chines and the like and, although capable will be exemplified'in! the mechanism herein-- of use in many other forms of machines, is especially adapted for use in those known as silent typewriters and has for one of'its objectsto provide means adapted automatically to preventfurther movement of the earriazge when the, end of a line is reachai.

nether object is .to provide mechanism adapted to lock the universal bar against movement at a predetermined position of the carriage Other objects will be in part obvious, and in part pointed out hereinafter.

features of construction, combinations of elements and arrangem of parts which after described, andthe scope of'the application of which will be indicated in the following claims; "v

In the accompanying drawing, wherein is shown one of various posslble embodiments-of my invention: Figure 1 is an elevation of the same-partly in ,secti'om 2 is a detail view showing the locking means for the .universal bar. -Fig. 3 is a sectional View of another detail.

Similar reference characters refer tosimi lar parts throughout the several views.

As aiding in a clearer understanding of -.certa1n of the various features of my iii-- vention, it. may be here noted that,.in typewriting. machines, it is desirable to provide means operating, to prevent a movement of the carriage when the end of a line is' reached, and it is, moreover, essential to so construct the machine that the ovement of 1 lengths of the carriage may be automatically arrested 1n dlfierent positions to allow fondifi'erent paper. I have, therefore, found desirable m" silent typewriters to so construct the machine thatthe carriage may be automatically'lockedv against movement in any desired;

KEYB ARD-Loci: son TYPE-WRITERS,

, Specification of Letters latent. Application, filed Tune 2 1, 9'o5.- Serial no. 286,814.

The invention accomiingly consists in the nes and difi'erent widths of Patented Oct, 26, 1909;

may be performed without noise, I have proversal bar against movement, thereby preventing a movement of the key levers and by, such operation being automatically determined by the position of thecarrlage.

, position and, in order that such operation 'vided mechanism adapted to lock the univ carriage feeding mechanism controlled there- The above and 'other advantag'esare secured in constructions of hereinafter described. 5

Referring now to the drawings, the carriage 1 is mounted to be reciprocated- 1011- the nature of that gitudinally in the frame of the machine and has secured thereto .face' late 2 having near oneend a slight wedges aped depression' 3. A preferably squared ,rock shaft 4 having rounded ends to form bearings ext-ends transversely .of the machine in a parallel relation with face plate 2 and is journaled in the frame at 5. A shoe 6 is slidably mounted upon said shaft and is. provided with a looking finger? adapted to constant} engage face plate 2 of carriage 1. Operatiiig rod 9 8 0 extendingthrou h an enlarged opening 10 in the frame 0 the machine is provided with a knob or handle 11 and connected to'shoe 6 at 12, and is adapted togslide the same along shaft 4. Rod 9 lsp'rovided with a rack 13 adapted to be engafged by*-:fixed pawl 14 secure to the frame 0 the machine and ismaintained in engagementptherewith by a leaf spring. 15. secured to said frame the periphery of rod 9.

and engagin lira!- lfi-connected with the car- Universa riage feeding mechanism, and upon which rests the ke vers and spacing bar, or other actuating evice, is; connected by link 17 to.

Rock lever--18 is rovided with 'an' offset portion-20 upon w adapted to be engaged by a coractingl positioned upon theend of bell crank 23 pivoted, at 24 to a stud 25 extending from the frameof the machine, the o oslte end of which is pivotally connect y means "of rod 27 with lever 26 carried by 4. -Retractile spring 28 'connectin cranklever 23 with a fixed' part of-t chine'is adapted constantly to maintain lock-' ing finger 7 carried by slidin V engagemitwith the face plate; of earria' 1"'through-;th'e connecting means fore described. Locking fin v I r,7;1s' proa with! ub t a y wizee e d M ich is located a lug21- g 22 ever rock lever 18 positioned upon rock shaft 19. r

i-ock shaft j 1 Qbell e ma-" 106 shoe 6 in 7 hereinbe 29"which is adapted toenterthe similarly shapeddepression 3 in face plate 2 when carriage I by its longitudinal, movement brings depression?) into registry therewith, thereby operating to cause coact1ng lug 22,01 bell crank lever 23 to engage with'lug' 21, such operation being the influence of. spring 28. The universal bar 16 being connected with rock lever 18 is now locked against movement and further actuation of the impression levers or spacing'ba'r is thereby prevented. By rea'-' son of shoe 6 being adapted to. be projected along rock shaft 4 by means of rod 9," the draw co-acting lug 22 of hell crank lever 23 from lu 21 carried by rocker'lever 18 thereby re. easing universal bar 16'' and.

simultaneously withdrawi g lockingfinger 7 from depression 3.

The operation, ofmy invention, which should be largely obvious after the above description, isas follows:

being set on rock shaft''" in any desired position, depending on the width of. paper or the desired length of line, will, when looking finger 7 enters depression 3 cause the lug 22 of bell crank lever 23 to' enga e with lug21 of rocker lever 18, thereby ocking the universal bar against movement and preventing a further movement of the carriage. On 'account of the wedge shaped end of finger 7 being engaged by the similarly shaped depression 3, the 'returningof the carriage to initial position by the'operator will force said finger out of engagement with the walls of such depression; thereby withdrawing bell crank lever 23 from engagement with rocker lever [18 ,and versalbar 16 through the connecting means abo e described, spring 28 maintaimngsaid fing r 7-in constant engagement with face plate 2. Accordin-gl 1t will be apparent that I have provided lockingiuechanism for the carriage feed well'a'dapted toachieve Sliding shoe 6 the object soughtand which is characterized by simplicity of structure operation and, moreover, cussion or impact of the k evers or spacing mec anism against theunlversal bar is re-' and efliciencyq of ventedwhen-thecarriageis in 'a' locked s'ition. By t substantiall directly upon the universal bar, there 1s prevented the usual racking accomplished by .sivel'y to such type'nor in might be said releasing uni-- one in which con e provision' of the lock actmg "and consequent strain upon the op erating mechanism due' to attempts to aetuateithelevers or. spacin' mechanism'whe'n the key - the, end of the 111,183

carriage has reache 'and this, of course, results in a more silent operation.

While I have shown and describeddmy invention in connection with a typewritino machine'of the above ype, I do not WIS tobe understood as eing limited excluof machine, it being adapted for use as to fact to any type many of its features in othenforms although As'many changes-could. be made in the above construction and many apparently widely difierent embodiments. of my invention could be made without departing. from the scope thereof, I intend that all matter contained in. the-above description or shown in the accompanying mg. sense.

I- desire it also to be language used in the intended to cover all specific features of the invention herein described and all statements of the scope of the invention, which-as-a matter to fall therebetween. Having described my'invention, what I claim as new and Patent is a 1. In a typewriting-machine, the combination with the traveling carriage and the universal bar, with'said universal bar andadapted to be actuated thereby, a movable member adapted to engage said rocker member to lock the peculiar value in the'relation herein" understood' that the following claims is of the generican'd' of languagedesire to secure by Letters drawings shall be interprete'd aslllustr'ative and not a limit of a rocker member connected same agalnst movement, spring means for I urging said locking member .to movement, a lock controlling member connected with said locking member adapted to engage a ortion of the carriage, such; enga ement holding the locking member in inet fective position, and means upon the carriage adapted when the latter reaches a" predetermined point in its travel to permit such movement of the lock controlling member aswill permit a movement of the locking meinber to its'locking position.

2. Ina typewriting machine, thecombination with the traveling carriage and the universal bar, of a swinging locking menu berfor the universal bar which is spring .urgedto movement to a locking position, a shoe connected with said locking member ortion of the carriage durmgh'the ceding movement tliereof,-. ;suc engagement operating toholdsaid locking member in an ineffective position and engagiptg a e er against the tension of its I I spring actuating mean and means upon the carriage adapted to permit a movement of the shoe when the lIlO move to its .lQCkIIIg-"POSltlUH.

3 In a typewriting machine, the combi nation with the traveling'carriage and the universal bar, of a movable member for locking thelatter, a shoe connected with said movable member and normally engaging a portion of the carriage, a spring adapted to urge said locking member to movement and ada ted to hold said shoe in engagement wit said portion of the carria e, such engagement operating to hold the' ocking mem or against movement, and means upon the carriage which permits a movement of said shoewhen' the carriage reaches a 'predetermined point in its travel whereb said spring maymove said locking mem atto; locking position.

4. In a typewriting machine, the combination with the travelin carriage and the universal bar, of a movab e member adapted to lock universal bar against movement, an

oscillatory rod extending in parallel relation with the carria e and journaled in a fixed portion of the rame of the machine, a shoe supported in non-rotatable engage-- ment with said rodand adjustable longitudinally-thereof, said shoe being adapted to engage a portion of the carriage, a sprin connected with said locking member 'an' urgingthe same to 'movement to a locking position a connection between said oscillator re and said lockiii member whereby sai spring normally hol s said shoe in enga ement with said portion of the carria suc engagement operating to hold the loc ing member against movement, and means upon the carriage which permits a move ment of the shoe when the carria e reaches a predetermined point in its trave thereby permitting said rod to oscillate and said ocking member tomove to, its locking position.

5. In a typewriting machine, in combination with a carriage havin a recess, a universal bar, a move le mem r normally in contact with said carriage and ,means actuated by said movable member for locking said universal bar when'the carriaa'e has reached a predetermined position in its travel and the recess is, engaged by said, movable member. v

6. In a typewriting machine, in combination, a universal bar, a rocker 181mg connected therewith, a earri a roclt shaft an ndi'ustable member posi "oned upon, said rock s mft and held in en gement with the carriage, sprin means a apted to actuate said member 1! en the carriage reaches a predetermined point in its travel; and locki f; meclmnism connected with sadfimember apted when the same is actuated t mlock fhe universal bar against movement.

7; In a typewriting machine, m c hination, a universal bari adapted to support the keylevers, aroc'kerlever connected t with, a (pivotally' mounted lever adapted to lock 'sai carriage, a rock shaftextendingin parallel relation with-'thecarriag'e and ournaled ina fixed port1on of the'fra'meof the machine, a member adjustably' positioned upon said rockshaft adapted toengage with a portion of the carria e, means connecting said rock lever spring means for urgin member to movement towar a.

means upon t v the adjustable member in engagement there .with to permit said spring to move said pivotallv mounted lever to engage with said locked against movement.

tion, a'universal bar adapted to control the movement of the impress on levers and 8. acing mechanism, a carriage, means scour the carriage and (provided with a depression a" rock shaft, a j ed upon said rock shag: free from but constantly engaging wi I .said means, a rocker leverconnected with said universal. bar, a bell crank lever 'adapted to engage with said rocker. lever to prevent a mcy ement thereof, connectin means between said rock shaft and said llcrank lever,'and a spring extending between a fixed part of the machine the 'afore-mentioned connecting means to with the carriage, and spring being adapted when said engagin means is in re istry with said depression todrce the same cum and simultaneousl engage said bell crank lever withsaid me or lever, thereby'preventing a movement ofesaid universal bar.

9. In at peyrltingmachine, the combine tion with t e carriage and the universalbar, oilocking means for the latter comprising a finger spring held in contact with the carniage, and locking means for the universal bar connected therewith, said finger being carriage at a rede ermined point 'in its "travel whereby t e locking means is actua ted and caused to loclr the universal bar against mhyement.

10, In a t nation with tsilewritin'g machine, .t he combie carriage and the universal "-bar, of'locking means for the lattercomprism in a fl er-s rin heldjn contact with the 8 and lbcki ng memonnected therem t' ofthejlnger tp lock the fumversal bar against fmovenient,'s'aid finger-when moved by itsjspring into a depression formed in the shaft with 't e pivotally' mounted lockingv said latter ocking position, said spring means also operating to hold the member mounted upon the roc k shaft in engagement with the carriage,.and-A-,f

e carriagewhich coacts with I H maintain said engagingmeans in contact adapted to enter ade ression formed in the rocker lever against movement, a,

locking lever, wherebydhe universal: bar is.

8, In a t'ypewriting machine, in combinanstable means position and said bell crank lever, adapted through with a. apted when actuated throu h a move- 7 1 depression adapted to be entered by said finger at a predetermined position in the travel of the carriage whereby the intercepting means will be caused to prevent a movement of'the universal bar.

12. In a typewriting machine, the combination with the vcarriage and the universal bar, of locking means for the latter compris ing'a plate carried by the carriage provided with a depression, intercepting means for theumversal bar, and. a finger connected therewith normally spring held against said plate, said finger being adaptedto enter the depression in said plate at a predetermined point in the travel of the carriage whereby. the intercepting means will be mo ed-into a position to lock the universal bar against I movement. i

13. In a typewriting machine, the conibi I nation with the carnage and the universal bar, of locking means for the latter comp;:ising a plate having a depression carried by the carriage, intercepting means for the 11ni' versal bar, and a finger connected with :iaid intercepting means and normal ly spring held in contact with said plate, said plate and. said finger being relatively adjustable, said finger being adapted to enter a depression insaid plate at a predetermined point in the t1 'avel of the carriage, thereby causing the iiters' cepting means to lock the universal bar against movement. I

In testimony whereof I afiix my signaaf ture, in the presence of two witnesses.

I lVitn esses A. WHITE, 4 C. H. Wlnson.

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