US842396A - Type-writing machine. - Google Patents

Description

PATENTED JAN. 29, 1907.

W. FRASER. TYPE WRITING MACHINE,

APPLICATION FILED APE.22,1905.

INVENTEIFL TTURNEY \A/ITNEEISESQ UNITED STATES r 5 desired, and which the parts are not liable tobeeomeaccidentaH detached in use. *Whilelhaveshow ri' invention applied to a=bonnecting linkbtween a key-lever and type -barof '-fa" type -writing machine, it 2'0 should be-uiid'erstood'- that the invention may be'appliedtovariousparts and various styles oftype-writiiig' machines, and, in fact, maybe employed of machine inwhich the use of the-jfconn'ecting device may be "2 found available;

e To the aboveffand other-ends, which will hereinafter appear, my invention consists of the features" of construction and arrangements and co'rnbinations of parts to be herego inafter described and claimed.

' In'theaccompanyingdrawings, Figure 1 is a fragmentaryfrontfto rear sectlonal view showing sufiicient number of parts of a typewriting-machine to illustrate my invention in F1 2 1s a fragmen- 3 5 its application thereto.

tary detail front'elevation one form of connecting device embodyin my invention, the end of the type bjar tuwil deviceiscdnnected'being shown in section;

. 0 and Fig. 3is' a detailside elevation of the coni necting device '3 V A key lever 1 isfulcrumed at 2 injthe base ofthe inachine'and is'provided with-the usual finger key 3- and restoring-spring 4. A metal 4 5 band "or strap'5 surrounds" the key-lever and extends above it,"as at 6, and is perforated to form a connecting-eye. A connecting-link 7 is'in the nature ofaftwo-part link made up of upper and lower members 8 and 9, respec- 50 tively,"whichareadjust ably united bya turnbuckle 10withinternal"oppositely-cut threads to jco6perate "with the f external threads 'on tliemernbersB" and Either the upper end PATENT OFFICE. SE se EN DIC .1 a I Specification of Letters Patent.

' Application filed April 22. 1965; Serial No. 256,978-

ich the connecting Patented.Jan. 29; 1 9673 or both ends ofthe link may be provided with connecting devices embodying my invention. 5 5 In the present'instance I have shown both ends of the link provided with such devices, the lower device affording means for detachably and ivotally connecting the link to the eye 6 on t e key-lever, whereas the upper end of the link isprovided with such a device for detachably and ivotally connecting the upper end of the lmk to the short arm 11 of a type-bar 12, pivoted at 13 to a t ebar hanger 14, so that a de ression of t e. keylever will move the typear to printing posi-v tion.

Theconnecting device at both ends of the link is the same, so that the description of one will apply to the other. An end of the connecting link or member to be pivotally and detachably connected to its associated part is provided with a laterally-projecting pivot, pin or hook 15, that may be formed by bend ing the end' of the link at substantially ri ht. .75 angles to its length, as shown in 21;; 1'1 is part is seated in an openingorzeyeof the part. to which the link is to be connectedjas in the eye 6, for instance-on the key-lever or in the" opening 16 in the short arm'll of the type 5&1. ,a A retaining device or leaf-spring 17 maybe attached to the link in any suitable manner, as by forming a split barrel-like securing po r tion 18 from the spring at one end and clamping the securing portion around the; link and fixing it in place by solder. The spring itself comprises two portions 19 and 20, the planes of which areat right angles or substantially right angles to each other, the spring being 0 twisted at 21 to efiect this end. The short portion 20 constitutes a securing or bearing. member that is adapted to bear on the free end of the pivot or hook 15 to prevent the accidental detachment of the type-bar or the ,9 5

other member that is connected by the de-g; vice. Theshort extentof metal forming the portion 20 makes it stiff, so that there is little or no resiliency between the terminal of the portion 20 andthe bend21, and it'cannot be deflected in the direction offthe arrow in Fig. 2. The part 19 is long when compared with the part 20, aiiording considerableresiliency atthis portion of the device, so that it may readily receive aflatwiseldeflection, or a deflection in, the direction of vthearrow in Fig. 3,

$ retaining device against the tension of its spring that is exerted at right angles to the y tained by the spring't n locking position shown and that iii-is rigid against deflection or displacement in the oi--' rection of the .axis of the pivot 15,01 in the parts can be disconnected, and therefore the. parts are positively locked against-accidental On the other hand, when it thougl it cannot be moved edgewise or the direction of-the arrow in Fig. 2. The part 19 is alined with the bodyof the link, 'so that the link constitutes a stop tolimi-t-orprevent a movement of the spring in a direction oppo site to that indicated by .the arrow'in Fig. 3.

From the foregoing it .willxbeiseen that the spring-retaining devie direction of the arrow in Fig, 2 and that it is only bya relativemovement in this direction between the link'and the type-bar that the disconnection. is desired to effect a disconnection between the parts it is merely necessary to deflect the .axis of the pivot 15, or, in other words, to defiect the retaining device in the direction of the arrow inFig. 3, which will result in moving the portion 20 away from and to one side of the end of the pivot and the parts may readily be disconnected. It will also be seen that the plane of the spring body portion 19 of the retaining device is coincident with or parallel to the pivot 15.

It will be observed that by my invention I have provided simple,cheap, and eflicient means for positively preventing the accidental disconnection between two pivotally-oon nected parts and that'the parts may never-- theless be readily disconnected when desired.

While I prefer to make 18, 19, and of each retaining device of a single piece, they may be made of more than one piece, and the v connecting devices-may be made in any suitable manner to suit the conditions or the par lengthwise of the pivot and detached therefrom, said retaining device being'prevented from moving in the direction of the axis of the pivot and being adapted to be deflected in a direction at substantially right angles thereto and to permit a lengthwise withdrawal of the pivot.

2. In a device of the character specified, the combination of a member having a pivot, and a spring retaining device that cooperates with an end of the pivot to prevent the part seated thereon from being accidentally detached, said retaining device being prevented rmallymairi-i thereof in thethe-pivot and the the axis of the pivot; 4 7. The combination of a member having a. laterally-projecting pivot extending there-. from, and a leaf-spring that is secured thereto. and cooperates with the free end of the pivot,

from moving in the direction in "wine part is'unseated' from the pivot and whlch n 1 ay bev deflected a ainst its-spring-pressure' in another direction 0 freefsaidpart;

3. I The combination of a pivot. a cooperat-.

pivot maybe projected endwise, and. a retaining device comprising a leaf-spring.that

cooperates with an end of the pivot, the plane of the spring body portion ofsaid leaf-spring being coincidentwith or arallel to the pivot.

t '4. The combination 0 a member having a laterally-projecting ivot, and a retaining device, said retaining evice comprising a leaf-,-

spring with the plane of one portion thereof at substantially. right angles to the plane ,of

another portion thereof. I

'5. The combination of a member having a laterally-projecting pivot, anda retainingde g vice, said retaining device'comprisinga' spring with the plane of one portion he at substantially right anglesto the; another portion thereof, and one of said portions being tially non-resilient. I t

'- 6. The combination of a member havi a laterally-projecting ivot, and a retaining vice, said retalning evicecomprising a afspring with the plane of one portion-thereof at substantially right angles to the plane (if another portion thereof, and one of said portions being resilient andtheother substantially non-resilient, the plane of the resilient portion being coincident with. or parallel to lplane of the non-resilient portion being at su stantially right angles to to prevent the accidental disconnection of the device seated on said pivot, said spring being fixed against yielding in the'dire'ction.

of the axis of the pivot and adapted to yield.

in a direction at substantially right angles thereto. V

8. The combination of a member having a laterally-proj ecting pivot extending therefrom, and a leaf-spring that is secured to said member and cooperates with the free end of,

the pivot to prevent the accidental disconnection of the device seated on said pivot, said spring being bent in planes at right angles to each other at opposite end portions, one end being secured to said member and l e of resilient and the other substan- -'ing'member with a hole through which the rod? the other bearing on the free end of the pivot.

9. The combination of a member having a laterally-projecting pivot extending therefrom, a leaf-spring that is secured to-said member and cooperates with the free'endof the pivot to prevent the accidental disconnec tion of the device seated'on said pivot, said spring beingbent to form two members .in planes at substantially right angles to each right angles to each other, the portion 20 be- 7 ing; comparatively short Whereas the other 15 portion 19 is comparatively long, the long portion 19 being secured to the link and the pert 2O cooperating with the end of the pivot.

Signed at Stockholm, in the county of Stockholm and Kingdom of Sweden, this 7 th 20 I day of April, A. D. 1905.

WILLIAM FRASER-.-

Witnesses FmD'rJov OLF, Riel-min) A MORLING.

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