US1314844A - Opebating attachment fob computing-machines - Google Patents

Description

S. B. WILSON.

OPERATING ATTACHMENT FOR COMPUTING MACHINES.

APPUCATION FILED MAYH, 191s.

' 1,314,844- Patented Sept. 2, 1919.

Inv e vii m" UNITED STATES PATENT OFFICE.

SAMUEL B. WILSON, 01's LEXINGTON, KENTUCKY.

OPERATING ATTACHMENT FORCOMI'UTING-MAGHINES;

Application filed May 11, 1916. Serial No. 96,825.

such .as adding machines, by which the recording of numerals may be set, by action ofthe footupon a treadle, in operative relation tomechanism attached to the operat- Jever of the machine.

he principal object of my invention is to provide an attaohmentof the character describedwhich will efiectively actuate-the machine lever by pressure :brought upon a suitable treadle, without undue wear on the pants of the machine, or danger of the machine :being marred, and without liability of itsside walls, adjacent the operating 'lever, becoming :broken if made .of glass, as is now in common practice.

"Othercobjects of my invention are to provide an attachment for computing machines which is inexpensive to manufacture, simple and -durable,,and one which can be quickly adjusted to various types of machine stands.

Eunther objects of my invention will lappear in. thetollowing detailed description taken in connection with the accompanying drawing, and forming a part of the specification, and in which drawing:

Figure '1 is a perspective view of a computin machine mounted on a suitable stand, and s owing an attachment constructed according to my invention in operative relation thereto.

Fig. 2 is an enlarged rear elevation of the operating lever of :a computing machine, showing :a coupling in operative relation thereto. I

Fi ,3 is an enlarged sectional view on the li he .3..-3 of Fig. 2.

Fig. 4 is a perspective view of said coup g- Fig. .5 is a view partly in .xplanland partly section showing the'treadle and its mount in i Tig. 6 is a fragmentary perspective view of a portion ofthe operating lever, such as is now in common use.

In the drawing where similar characters rarer a. similar parts throughout the dlifier Specification of Letters Patent.

Patented Scpt. 2, i919.

ent views, A designates generally a computln machine including an operating lever. C a stand therefor including uprlghts D; E .a treadle; F an adjustable support therefors-G a'coupling detachably .se-

cured to lever 13,; and H adevice, 51 .1 as

a chain, for im arting movement of treadle Etoucoupling i in the .example shown, a .com u'ting machine A is of that type provi ed with a detachableoperating lever B having a handlefl and a stem" 8, the axis of whlch is .coincident with the axis of oscillation .of the lever, this stem ,8 extending through :a glass wall 9, forminglthe side wall of thecomputingmachine. yer is used in the operation of the computmg machine, after suitable keys 10 have been depressed, for the purpose of settin the machine according to the. keys depresse The stand C may be of any suitable type in the example shown, being provided with.

caps 11 receiving the extensions 12 at the lower portion of the machinalasisnow Q 11 mon practice. The uprights D servin as legs .of the machine, are securely braced .by cross members 13-and 14.

t is understood that this ,le- 1 Referring now to the treadle E, it may comprise a main body portion or board 15 to which is secured, at its lateral margins, arms. 16 and 17, said .arms provided with sleeves -18 to fit about a shaft 19, which in turn is supported by suitable brackets 20 adjustalbly connected withthe uprights 1D. In the example shown, ,these brackets comprise a lJ -shapedbody :PQrtion 21, .one stem,

that designated 22 of each bracket being longer than the other stem 23, said body portion fittin about .the uprights D; and, a bolt 24 and a nut 25 extending through the stems 22 and 23 in a manner that the body portion 21 maybe clamped on said uprights. The shaft '19 has engagement with and is supported by the stems 22 of said brackets, and collars 26 having .set screws27 may be provided about :the shaft 19-.to event longitudinal movement thereof withrespect to the brackets. The sleeves 18may also be prorided with setscrews 28, enabling the treadle E to be adjustably secured to shaft 19. It is to be observed that, by providing a treadle E with adjustable support 5F,- said treadle may be adapted to various makes of stands C, and the treadle may be adjusted to thataposition most con- Wenient for the operator-by merely releaw i ing-set screws 28 and moving the arms with the. body portion longitudinally of shaft 19, .until in the position desiredfwhereupon the set screws '28 may, hetu'rned tight; Theadjustable support F may also be moved longitudinally-10f the uprights D so that the 5 venient for use by the-operator. it

treadle'Eis positioned in a plane most con- As to. the coupling G, it comprises a main,

body 'portion"'29'; including " arms 30 and 31 disposed at "substantially fa right'angle', and anjarcua'te connecti'on' '32 joining the arms 30 and "SIat'their ends opposite-from the i ea and, meansee for de- -29 to the lever B.

, 'sion'embodiesa'groove37 intoijwhieh the rib tachably' securing said main -body portion While lever B may beef-any suitable shape, it is provided with a longitudinally 'grib 34 extending from the name 7 'toa disk-likeenlargement'35 coaxial with 'theaxisof operation of said lever,in the example shown. The arm 'ofbody portion 29 is provided withtadep'ression 36 in its face formed to'the contour of thei outer and side faces of lever B';** That is, said depres- 734E may extend; a recess 38 for receiving the- "disk-like enlargement. 85; and, an enlarged groove 39 open'fto greove'37 intowhi'ch the main body portion of lever- B fits, andsothat the rear face of-said lever .i's' flush with the rearface ofbody portion 29. The means'33 may comprise a bar 4:0 pivotally connected I *to body'29 adjacent; one margin of'thedepression 36, as by screw -41 and detac'hafbly secured adjacent the other'm'argin of said depression, as by screw 4:2,so that, by re- 7' moving'one of said screws, the bar 'may-be swung to the position shown in Fig. 4 enabling the lever'B to be placed into operative relation with the coupling, after which the 7' barAO is swung'to extend across'the rearface 0f the lever, and is secured in place by the screw. By this cconstructionp the coupling is'fheld against imovement longitudinally [of the; lever and I against swinging action, so that there is nodanger of it engaging'the glass wall 9 ofthe computingmachine. It isepreferred to' form the arms30 and 31, and the connection 82 of one integral mass, at perforation 43 beingprovidedatthe end portion of arm 31 opposite from its'juncture with arm 30- to receive a suitable "link 44 with which the" device G has :con'nection. The 'arm "31 not only serves a means whereby; the device H is =operatively con- "gnected with the :coupling, butfalso gives weightto the body '29, laterally of its pivot "point'fand acting inconjunction withthe connection 32" facilitates oscillation of 1 the coupling and lever. The arcuate connection '32'al'sopresents'a rounded periphery, so that if it isdesired to operate thejlever B by r-grasping thehanfdle 7 instead of operating the treadlej E, there is-nolobstruction or proflexible, "is trained from its conn'ectionfwith struction whenv the machine'isn'ot in use; The operationpf theattachment isas folg Having truding part which would belikely t-o eIi-w; I V gage the-sleeve of the operator or otherwlse interfere with manual operation of the lever, the operator usinghis hand instead oftfoot 7 action; 7 v 170 Withregard to the device H,-,it mayrconsist of a chain detachably secured to 'link ll *andsltoan extension 4 5-ofv arm 17, said arm provided with a perforation 46 into which i the device H extends: -Thedeviee-H,bein

treadle E, "exteriorl of the cross piece 1'4,

and 'interiorly of cross'pjiec'e l3, whereit is out of theway and does not act as an 019- lowsz a V a been adjusted so that thetr'e'adle E is'positioned in the most convenientplane l computing machine is facilitated In prac- 'ticelit-has been found that an operator be comeszso accustomed 'to utilizing'aitreadle i that he subconsciously actuates {the treadle after the desired keys havebeendepressed "and is inreadines'stoidepress the-neXt-com-V. V

bination of keys withoufmoving.the fingers *from above the key-board" 1 There] is noidangerof the machine becoming marred-, nor the, side wall Qdam'aged inasmuch as the cou pling G isrigidly'secured to'the' le'ver'B;

Adjustment i's alsopossible to adapt the at 'ta'chmentto "various;types-"and "sizes {of stands, as is obvious 'jfrom an; inspection of the drawings-ff" 5 1 7 Changes in details may be ;made="without 1 10, departing from the'" spirit or scope of my iii- -vention;fbut, f. 1

Iclaim: r

1. 'In an attachment-for a machine, thecombination with an operating it lever for the machine, of segmental con; pling frame having afglongitudinal" seat in one radial portion thereof adapted tojre- 4 ceive saidleverlongitudinallyf'therein, securing straps detachably -attached Ltosaid radial portion and adapted to said seat and engagesaid lever for retaini-iig the "lever in the seat, saidrecessshaped to snugly fit" said leverto reventliplay of 'the lever with respect to the coupling, a treadle, and a connection between-said' -treadle and" the outer portion of said segmental coupling. 7 frame. a i

2;;In an attachmentjfor acomputing e i s 7; chine, thecombination with i an operatingl lever for the machine, of a segmental coupling frame havin a longitudinal seat in one radial portion t ereof adapted to receive saidlever longitudinally therein, said seat being shaped to conform to the configuration of the inner side of said lever to prevent movement of the lever independently of the segmental frame, securing straps detachably attached to said radial portions and 10 adapted to clamp said seat and engage said lever for retaining the lever in the seat; a treadle pivotally supported forwardly of the pivot of said lever and extendi rearwardly, and a flexible connection etween the outer portion of said segmental coupling frame and the free end of said treadle, the connection between said flexible member and said treadle being substantially directly downward of the pivot of said lever.

SAMUEL B. WILSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. r

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