US1565127A - Typewriting machine - Google Patents

Description

Dec. 8 1925' ,1. WALDHEIM TYPEWRITING MACHINE .Filed Nov. 5, 1521 :5 sheets-sheet 1 \J 1 L 1 L In ilenfar' %m y news, 1925. 1.565.127

' J. WALDHEIM TYPEWRITING MACHINE Filed N V- 5, 1921 3 Sheets-Sheet 2 //2 venfor Dec. 8 1925- 1565.127

J. WALDH EIM TYPEWRITING MACHINE Filed Nov. 5, 1921 s SheetsSheet s bwsmor: 7%W by I Affo hey.

Patented Dec. 8, 1925. r: 1"

UNITED STATES fin.. 1,565,127

PATENT OFFICE JOHN WALDI-IEIM, 0F ELIZABETH, NEW JERSEY, ASSIGNOR T0 UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A GOREQBIA'LION OF DELAWARE.

, i TYPEWRJITING' MACHINE.

Application filed November 5, 1921. Serial No. 513,003.

devices for combined computingandtypewriting machines, and is illustrated as applied to the type of machine disclosed in the patent to Hart, No. 1,270,411, dated June 25, 1918.

The Underwood combined typewriting and computing machine comprises an upper or typewriter portion, a computer or central portion, a base upon which said computer and typewriter portions are supported, and a lower portion consisting of various driving and operating mechanisms. The computer portion is nearly soundproof, since it is completely enclosed, with the exception of the openings in which operate various keys and operating levers which according to the present improvements are closed by sounddeadening means. The noise-producing parts of the combined computing and typewriting machine are mainly the upper typewriter portion and the lower portion comprising the driving and operating mechanisms. It is a feature of this invention to provide sounddeadening means in the form of closures for each of these portions. For this purpose, the usual openings in the walls of the typewriter-frame are closed by detachable plates and there is provided a sound-deadening hood or crown mounted upon the upper part of the typewriter-frame to enclose the noiseproducing parts thereof, and prevent the escape of sound at the top of the machine. Further, a sound-deadening casing is provided for enclosing the lower portion of the machine.

A further feature is to provide said hood with a pocket at the rear in which operate the overhanging ends of work-sheets carried b y the machine, and to mount saidpocket so that it is supported upon said typewriter portion and upon the computer portion.

Another feature is the mounting of the sound-deadening casing for the lower part ,of them achine so that it abuts the lower sur face of the base for the computer case, said base serving to close said casing completely at the top.

Still another feature is the supporting of said sound-deadening casing upon the stand which supports said machine.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

' Figure 1 is a side view of a combined typewriting and computing machine with the sound-deadening means applied thereto.

Figure 2 is a side view, vertically sectioned, of the device shown in'Figure 1.

Figure 3 is a front view, partly sectioned, of the device shown in Figure 1.

The Underwood standard bookkeeping machine, to which the sound-deadening devices are applied, maybe of the general type disclosed in said patent to Hart, No. 1,270,- 411, and comprises a typewriter-frame mounted upon a computer-case 11, abase 12 upon which said case is mounted, and various operating mechanisms, such as a driving motor 15 and clutch 16 suspended beneath the base 12. The latter is supported by lugs or brackets 17, fixed to the base, upon a stand 20 which may be of the type disclosed in the patent to Hart, No. 1,063,- 878, dated June 8, 1913. The typewriterframe comprises a forward extensionv 21, in which are positioned alphabet-keys 22 and numeral-keys 23, as in the Underwood standard typewriting machine. The numeralkeys and alphabet-keys operate type-bars 24 to cause types 25 carried thereby to print against the front side of a platen 26 forming part of a carriage 27 mounted for letterfeeding movement upon a front. rail 28 and a rear rail 29 on the typewriter-frame 10. A space is formed between the typewriter por tion and the computer-case, in which space operate denominational tabulator-keys 30, a subtract-key 31 and a non-compute key 32 in a comb-plate 33 which closes said space at the front.

The carriage is provided with selecting dogs 85 which, upon entering a computing zone, are lifted by a cam-roller 36 into effective relation with jacks 37, the travel of the carriage to the left bringing said dogs into successive engagement with the jacks to lift each successive jack. The raising of Wvill be operated forwardly from left to right in the order in which the numerals are typed, although the jacks are raised successively from right to left, the transposition linkages operatingbell-cranks ll connected witl said computing bars. hen the computing bars are moved forwardly,

indexing pins 12 carried by said computing bars, and corresponding to the numerals from 1 to 9 are brought into operative position directly beneath pin-setting bars a3: operated by the numeral-keys and normally positioned forwardly of pins 42. The means "for operating said pin setting bars by the numeral-keys comprises a stem sit} lixed to each numeral-key, said stem.

operating a rock-shalt at? through an arm -18 lived to the rock sha-i t, each pin-setting bar being operated by its own rock-shaft, and each roek-shattbeing; operated by one of the numeraldr'eys. "Operation- .of a numeral-key, when the earriage is-in a computing zone, thus operates a pin-setting bar to depress the proper pin on the denominational thrustbar which is then in forward position. lVhen a number which is to be run into a computing registerhas been fully typed, and the pins have been set on the computing bars oi proper denominations, said numbermay be run-intothe register at the front of the cmnputer-case by operating the computing bars torwardly through distances correspondingto the values o'l 'the depressed pins.

For driving the computing bars for wardly, there is provided a general operator 511 which may be or the type disclosed in the patent to Hanson, No. 1,278,8l2, dated September 10, 1918, and comprises a crossbar or engaging portion 52, which may be moved forwardly to engage the lower ends of the set of depressed indexing pins, to drive the computing :bars forwardly distances corresponding to the values of the depressed pins.

The con'iputing bars 234: are provided at their :"orward ends with racks 533 meshing. with pinions associated with the dial-wheels to rotate the latter through distances proportional to the movement of the computing-bars; the nuineralson the peripheries of the dial-wheels being readable through a si 'l1t-opening 56 in a front cover-plate 57 of the computer-case, the front cover-plate 57 forming a continuation. of the comb plate The general operator may be actuated by a handle 59 on a rock-shat'tGO, the rockshalt having two gear-sectors 61 secured thereto, which mesh with intermediate pinions ihcreis provided a-keyGT, which may be depressed against the tension of a return spring (not shown) to operate a rearwa-rdlyextendinglever 68, to depress the out-er end of a horizontally-disposed lever 69 extending inwardly from the side of the machine, toraise the inner end of said lever, said inner end being eii'ective to actuate a trippin 70 to start the motor and render the clutch 16 effective.

The elutch-mechanism and the motorswitch-operating mechanism may be like that disclosed in the gpatentio \Vood, No.

1,299,6-16,*dated April 8, 1919, in which the rendering of the clutch effective reciproeates an arm or projection 71 engaging a fork 72 secured to one of the guide-bars (r-loi the general operator 51. Thus, it will be seen that, when the motor makes a revolution, the general operator is reciprocated, or, in other words, is caused to make a cycle, the iorward stroke of the general operator beingeil'ective to drive the computing bars torun in the indexed number, the rearward stroke ol the general operator being effective to restore the computing bars to their normal positions; the comp ing bars being provided for this purpose with projections '73 which are on red by the crossbar ol the general. operator on its return stroke. The indexing pins "12 are restored by pin-restoring mechanism including a plat-'Forn'i which is acl'uable by the general operator during the latter part of itsreturn stroke, as shown in the abovementioned Hanson patent.

\Vhen the cycle is completed. the circuit through the motor is broken and the clutch rendered ineffective, as is disclosed in said patent to Wood.

it will be understood that, when the general operator is to be reciprocated by the operating handle 59, the motor-drive may be disconnected by lowering the projection 71 of the clutch-mechanism out of engagement with the fork 72 on the guide-bar of the general operator, as disclosed in the patent to Hart, No. 1,212,895, dated January 16, 1 917. For this purpose, there is provided a clutch-device 75 in the form of a bellcrank, one arm 76 of which supports the clutch-mechanism-case, and the other end 7 7 of which is swingable to rotate said case about the motor-shaft. By rotating the clutch-device, the clutch-mechanism-case isswung about the motor-shaft,'to bring the projection 71 out of engagement with the fork.

The machine may be provided with a car- 1 riage-return key 79 which, when depressed,

typewriter portion and for the lower poi" tion comprising the various operating mechanisms. The middle portion or computen 'case is substantially enclosed, and is hence a sound-proof casing. To prevent the escape of sound through the upper wall or ceiling of the computer-case which is provided with slots in which operate the various upwardly-extending keys, such as the motor-starting key 67, there may be provided a layer of sound-deadening material on said upper wall.

To deaden the sounds issuing from the typewriter portion during the operation thereof, there is provided a sound-deadening hood or dome 91 supported on the upper part of said typewriter portion. The front plate 92 of the typewriter forms the front wall of the sound-deadening hood, and it is preferably lined with sound-deadening ma terial 93. To close the side openings of the typewriter, there are provided side plates 9t secured to said typewriter by'screws 943. The hood comprises extensions 95 over which. the typewriter carriage may operate to the right and left, said extensions being formed by plates 96 and lateral extensions '92 of front wall 92, the plates 96 being lixedupon said front wall and the side plates 91- in any suitable manner, as by screws 96. At the rear of the typewriter portion the dome has a downward extension or pocket 97 which extends outwardly as far as the lateral extensions 95, to which it is attached at its upper end at 98, said p pocket extending downwardly to the base 12 at the rear of the computer portion to which it is attached near its lower end by means of flanges 99 fixed to said computer portion.

It is obvious that, as the carriage operates over the extensions to the right and left,

the overhanging ends of work-sheets carried by said carriage will be free to operate in said pocket. The front wall, the side plates,

the lateral extensions, and the pocket form the body part of the hood, said body part being open at the top. For closing the top opening, there is provided a cover part hinged to the rear of said pocket and extending forwardly to said front wall and laterally to completely cover said extensions. The cover part is preferably provided with a window 100 for permitting the machine in the interior of the hood to be viewed.

The extreme rear wall 101 of the body part may be removable to allow access to the mechanism at the rear of the machine. It will be obvious that the sound-deadening hood may be readily mounted on the machine by attaching the various parts of the hood; The rear and side walls of the pocket terminate at their. lower edges, preferably within the limits of base 12, the latter partially supporting said hood. \Vhen the hood has been applied to the typewriter portion, there is left exposed the forward extention 21 in which are positioned the alphabet and numeral keys, and there remain exposed also the various operating keys'and levers, such as the tabulator, subtract, nonadd, motor-starting, and carriage-return keys. Provision is made also of means whereby the various carriage-operating levers, such as line-space lever'102, carriage return fingenpiece 103' and carriage-release lever 104, may be operated from outside of the hood, said means consisting of a'slot formed at the front between the cover part and the top of front wall 92, through which slot said levers extend. The slot maybe closed by co-operating sound-deadening cushions 105 and 106 fixed to the cover part and to the front wall 92, respectively. The machine may be provided with a sign 107 for indicating the state of the machine with respect to addition or subtraction, as disclosed in the patent to Kupetz, No. 1,356,072, dated October 19, 1920. To render this sign visible, the front wall 92 of the hood may be provided with an opening or window 108.

To enclose the various operating mechanisms beneath the base 12, there is provided a casing 110 having a removable rear wall 111 and being of such width that it may be positioned between the posts of stand ,20. The casing is preferably supported upon stand 20 by means of lugs 112 positioned beneath lugs 17 by which the computing machine is mounted upon said stand. When so mounted upon the stand, the upper edge of the casing abuts against the under surface of the base, and, since the casing has no cover, the base serves as a complete closure for the top of the casing. The upper edge of the casing is preferably flanged, as at 11 1, and a layer of sound-deadening material 115 may be interposed between the casing 110 and the under surface of the base 12. To permit the clutch device to be operated from the outside of the casing, a slot 116 may be provided in said casing through which said device extends, said slot being closed by sound-deadening cushions 117 and 118 fixed on the edges adjacent said slot. To allow ready access to the operating mechanism within the casing, there may be provided, in addition to the removable rear wall 111, a removable section 120.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others. Having thus described my invention, I

' claim 1. Sound-deadening means for a computing machine having a typewriter-portion provided with a keyboard, and having a framework formed with openings in its side and rear, a computer-portion on which the typewriter-portion rests, a base upon which'a portion of said computer-portion is supported, and various computer operating mechanisms beneath said base and carried thereby and controlled by said keyboard, said sound-deadening means closing the open parts of the machine and comprising plates closing said side and rear openings in said typewriter frame, a hood enclosing said typewriter-portion at the top and rear but leaving the keyboard exposed, and an open top casing enclosing said computer operating mechanisms and, fitting against the lower side of said base to be closed thereby.

2. In combination, a stand, an upwardlyconcave casing on said stand, a floor fitting closely the top of said casing and resting thereon, motor mechanism supported by said floor and extending downwardly therefrom into said casing, a computer having a laterally-closed case resting on said floor and fitting it closely at the edges, a typewriter haying a frame to tit closely the top of said computer-case, and sound-deadening means to enclose the typewriter with the exception of the keyboard. r

3. In combination, a combined typewriting and computing machine comprising a typewriter, a computer having a laterallyclosed ase on which the typewriter rests, a. base upon which the computer-case is supported, and various operating mechanisms suspended from said base, a stand, said base having lugs for connection to said stand for supporting the machine, and sound-deadeir ing means for said machine, including a casing for said operating mechanisms iitting against the lower side of said base and having lugs extending beneath said firstnamed lugs to permit corresponding lugs of both sets to be clamped to said stand by the same means.

4. Sound-deadening means for a computing machine, said machine having a typewriter portion, a computer portion, and

various operating mechanisms beneath said computer portion, said sound-deadening means comprising a hood for enclosing the noise-producing parts of said typewriter portion, said hood comprising a detachable pocket at the rear in which operate the overhanging ends of work-sheets, said pocket being supported upon the machine and upon said computer portion.

5. Sound-deadening means for a computing machine, said machine having a typewriter portion, a computer portion, and various operating mechanisms beneath said computer portion, said sound-deadening means comprising ahood for enclosing the noise-producing parts of said typewriter portion, said hood comprising detachable sections mounted upon the typewriter portion, and a detachable pocket at the rear in which operate the overhanging ends of work-sheets, said pocket being supported upon the sections mounted on the typewriter portion and upon said computer portion.

6 Sound-deadening means for a computmachine, said machine having a typewriter portion comprising a carriage, a computer portion, and various operating mechanisms beneath said computer portion, said sound-deadening means comprising a hood for enclosing the noise-producing parts of said typewriter portion, said hood comprising a front wall which is also the front wall of the typewriter portion, side walls for closing the sides of said typewriter portion, extensions fixed to said front wall and said side walls and over which the typewriter carriage operates to the right and left, and apocket at the rear in which opcrate the overhanging ends of worksheets, said pocket being supported upon said extensions and upon said computer portion.

7. Sound-deadening means for a computing machine, said machine having a type writer portion comprising a carriage, a computer portion, a base upon which said portions are supported, and various operating mechanisms beneath said base, said sound deadening means comprising a hood for en closing the noise-producing parts of said typewriter portion, said hood comprising a front wall which is also the front wall of the typewriter portion, side walls for closing the sides of said typewriter portion, extensions fixed to said front wall and said side walls and over which the typewriter carriage operates to the right and left, and a pocket at the rear in which operate the overhanging ends of worksheets, said pocket being mounted upon said extensions and said computer portion and extending downwardly to said base.

8. Sound-deadening means for a combined typewriting and computing machine comprising a computer, a typewriter on said cemputervand having a framework formed with side and rear openings, and operating connections extending upwardly from the lower rear portion of the computer to the upper part of the typewriter, said sounddeadening means comprising plates closing the side and rear of the typewriter frame, a hood to enclose only the upper part of the typewriter, and having at the rear a detachable work-sheet-accommodati11g pocket supported 011 the typewriter and the computer to provide clearance at the rear of said operating connections for the worksheets; the framework, plates, hood and pocket combining to form a sound-subduing air-pocket.

9. Sound-deadening means for a computing machine having a typewriter-portion, a computer-portion on which the typewriterportion rests, a base to support said computer-portion, and various operating mechanisms beneath said base and supported thereby, said sound-deadening means comprising an open-top casing for said operating mechanisms having its upper edge abutting the lower side of said base to close the open top.

10. In combination with a combined typewriting and computing machine, said machine comprising a framework including a typewriter section and a computer section, said framework having openings, closure plates for said openings, a dome to close the upper part of the framework, a chamber extending downwardly from said dome and at the rear of said framework, a base plate to support the framework, operating mechanism disposed beneath the base plate, and a closure element for the operating mechanism.

11. In combination with a combined typewriting and computing machine, said machine having a typewriter frame, the latter having two closed side walls, a computer frame beneath the typewriter frame, said computer frame having closed walls, a dome supported on the typewriter frame to close the top thereof, said typewriter frame comprising a front wall including a key-lever guide-plate, said dome comprising a front plate extending downwardly to the front wailof the typewriter frame, the computer frame comprising a ceiling, a closure extending upwardly from said ceiling to said guide-plate, a base to support said machine, and a chamber extending downwardly from said dome at the back of the typewriter frame and said computer frame.

12. In combination with a combined typewriting and computing machine, said machine having a typewriter frame, the latter having two closed side walls, a computer frame beneath the typewriter frame, said computer frame having closed walls, a dome supported on the typewriter frame to close the top thereof, said typewriter frame comprising a front wall including a key-lever guide-plate, said dome comprising a front plate extending downwardly to the frontwall of the typewriter frame, the computer. frame comprising a ceiling, a closure extending upwardly to said ceiling and said guide-plate, a base to support said ma chine, a chamber extending downwardly from said dome at the back of the typewriter frame and said computer frame, operating mechanism beneath said base, and an element to enclose said operating mechanism.

JOHN WALDHEIM.

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