US1468641A - Typewriting machine - Google Patents

Description

Sept. 25 QZ -A. G. F. KUROWSKE TYPEWRITING MACHINE Filed oct. 15

patented-Sept. 25, i923.

ALFRED KURO'WSKI, OF BROOKLYN, NEW YORK, A SSGNOR T0 UNDEB'WOD TYPEVJRITER COMPANY, F NEW YORK, N. Y., A CORlDCRATION 0F DELAWARE.

'rrrnwnrrrne MACHINE.

Application filed ctober 15, 1920. Serial No. @17,192. ll

To @ZZ 'whom t may concern.' Y

Be it known that l, ALFRED-G. F. lxUnowsnr, a Citizen of the United States, residing in Brooklyn borough, in the county of' Kings, city and State of New York, have invented certain new and useful Improvement-s in Typewriting Machines, of which the following is a specification.

This invention relates to the line-spacingr mechanism of typewriting;I machines, particularly those of the type known as the Underwood standard portable typewriter, The main object of the invention is to secure increased convenience and ease of o aeration of the line-spacing mechanism. ther and more particular objects are to secure these above noted advantages without interfering with the compact enclosure of the portablel machine within the usual protective cover or carryingy case provided for these machines, and without increasing the number of operations heretofore required in closing the cover into place on the machine, or in opening;r or removing the cover part of the casing. The invention includes a long line-space lever which may be pivoted on a vertical pivot to swing in the direction of the return of the usual carriage or platen-frame, and to eX- 'tend forward for some dist-ance to the front of the platen-frame, so as to be both conveniently and easily operated, and a fingerpiece forming a tip movably mounted on the forward end of the line-space lever at .a

l point well forward of the platen and platenrame, vand having a normal tendency, such as by being spring-pressed to rise to an upstanding position of use in which .it projects above other parts of the machine, but which may be pressed down by the cover or casing to a lower position in compact relation to the forward end of the line-space lever, so

as to provide for the enclosure of the machine within its usual cover or carrying case, and which will rise automatically to its upstanding position when the pressure thereon of the cover is removed. Therefore, only the two usual operations of closing or putting on the cover, and of opening or taking it off are required.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective view of the left end of the .platen frame `and platen of an Underwood portable typewriting machine having embodied therein the improved linespacing mechanism of the present invention.

lfigure 2 is a front elevation, with parts omitted, of the left end of the machine enclosed within its casing, transverse vertical section.

Figure 3' is an enlarged view of the forward end of the line-space lever and the foldable finger-piece carried thereby, shown partly 1n plan view and part-ly in horizontal section, toillustrate the mountingV of the foldable finger-piece.

- ln the embodiment of the invention illustrated in the drawings, a usual platen 1 is Journaled by-means of `its axle 2 in a usual platen frame, or carriage, of which the left end wall 3 appears in Figures 1 and 2. The platen l is provided with a usual line-space wheel et, the teeth of which are engageable by an actuating stud 5 projectinglaterally from the free end of a line-space pawl 6, pivoted at 7 to an inwardly-extending lever arm- 8 shown as forming part of a forwardly-extending line-space lever 9 which is pivoted by mea'nsof a vertical pivot-stud 10 on a lug' 11A proj ectinpl from the outer side of the rear part of the end wall 3 of the platen frame. l ear the pivot-stud 10, the line-spacelever 9 is shown as slightly offset upwardly at 12 in order to clear the top of the end wall 3 -of the platen frame, and from this offset 12 the line-space lever 9 is straight and extends substantially horizontally forward beyond the end wall 3 to a point wit-hin easy reach of the operator, above and at'the back of ,end part 13 which is at right angles to the main lever part 9, and which, in the normal.

position of the line-space lever shown in the drawings, is substantially parallel to the platen 1. The end of this transverse lever part 13 is provided at the front thereof with which is shown in til@ a shouldered screw-stud 141 forming a pivotal support for a finger-piece 15, 'forming a tip on the end of the line-space levervat a point well forward of' the platen and platentrame, and which in its normal upstanding position rises from a point to the leit of the pivot-stud 1-1 on al curve laterally toward the left, so that the upper rounded end of this linger-piece l5 occupies a position at an angle ot' about` 'forty-live degrees upward and to the lett ot the axis of the pivot-stud 14, as shown in full lines in Figure 1 and in broken lines in Figure 2. 'A heel part 16 forms a short downward continuation of the inner curve of the linger-piece 15 below and at the left of the pivot-stud 14, and this heelpart 16 carries a rear wardly-proj ecting stoplug 1T which normally abuts against the lower side of the transverse end part 13 of the line-space lever 9 to prevent the fingerpiece 15 from turning over toward the right when pressure is applied to .effect a linespacing operation, but permitting the iingerpiece 15 to be folded toward the left and downwardly alongside of and in compact. relation to the lever end part 13v from the broken-line position indicated in Figure 2 tov the full-line position there shown. A

A coiled torsion spring 18 .is contained and concealed within a circular channel 19 formed in the front face of the lever end part 13, the rear end of this spring 18 being anchored to the lever end 13 in a recess 2() at the bottom oit the channel 19, and the other or forward end of this spring being turned outwardly and received into a recess 21 in the adiacent face of the linger-piece 15, the spring 18 being arranged to exert a clockwise torque on the finger-piece 15 as viewed from the front, for thereby normally yieldingly holding the stop-lug 17 against the lever part 13 with the finger-piece 15 in its normal upstanding position of use, shown in Figure 1 in full lines and as indicated in broken lines in Figure 2. By reason of this'construction, the finger-piece 1) will have a tendency to, and will normally occupy, an upstanding position ready for use to e'ect a line-spacing operation, but may be pressedl downward to the above-described position of non-use from which it will automatically return when released to the normal upstanding position of use.

Inits .upstanding position of use, the finger-piece 15 projects substantially throughout its full length above other elevated parts of the machine, such Jfor example, as the upper end of the pivot-stud 10 and the top of;

' the usual paper-table 22 which forms a part of the platen frame, and as will be clear from an inspection of Figure 2. In Figure 2, the lower or main body part 23 of the,

typewriting machine is shown diagrammatically in outline below the platen 1 and supports the end wall 3 and other parts of the which a box-like casing part or cover 26v 4 forms the remainder oi' the complete casing. The cover part 26 may be removably secured in place on the bottom or base part 25 by any suitable means, not shown, but well understood in the art. lVhen the cover part 26 is placed in position `over the machine, the top wall of this cover part 26, as this cover is pushed down to the iinal position thereof shown in Figure 2, will come in contact with the rounded upper end of the upstanding finger-piece 15, and as the cover part 26 descends will push the finger-piece 15 angularly downward from'the upstand` ing position of use thereof shown in Figure 1 and indicated in broken lines in Figure 2, to the compact folded position of non-use thereof shown in full lines in Figure 2, below and in contact with the inner surface of the top. wall of the enclosing cover part 26 of the casing.

After the cover part 26 has been secured in place on the base part 25 ofthe easing, the closed easing with the typewriter firmly held therein may be conveniently carried in like manner to a small suitcase by meansof a suitable loop handle provided for that purpose, and as is well understood by those familiar with portable typewriting machines. The base part or bottom 25 usually forms one. of the larger sides of the enclosing case, and the top wall of the cover part 26 forms the opposite larger side of the casing. Vhen the machine is to be used the casing rests -upon its base 25, and the enclosing' upper cover part 26 is removed, whereupon the `spring-pressed linger-piece 15 will then automatically rise from its folded position of non-use shown in full lines in Figure 2 to the upstanding position ofuse thereofl shown in broken lines in Figure 2 and in full lines in Figure 1. i

ln the operation of the device it,will be clear from the foregoing description that the long forwardly-extending line-space lever 9 with its transversely turned forward end part 13, provided with the normally upstanding foldable finger-piece 15, provides both easy and convenient means for operating the line-spacing mechanism, and also provides for the safe, compact and complete enclosure of the typewriting machine Within its usual carrying case comprising the base i part 25 and the cover' part 26.

Also, intheoperation ofthe device, it is to be noted that it is only necessary to place fthe cover 26 over the machine in the usual -improvements may be used without others.

Having thus described my invention, I claim:

l. In a typewriting machine having a rotative platen, line-spacing mechanism therefor, including an upstandmg. fingerpiece mounted for-` movement to a lower position when out of use, said finger-piece having a normal tendency to. rise to its upstanding position and being adapted to be pressed downward to its 'lower position of non-use by a cover for the machine, and to rise automatically to its upstanding position of use when the pressure of the cover is removed.

2. In combination, in a typewritingmachine having a rotativeplaten and a casing for themachine, line-space mechanism forthe platen, includinga finger-piece adapted to be pressed .from normal position to a position of non-use by a section of the casing enclosing the latter, and means for automatitally returning the finger-piece to its normal position, 'for operation thereof. when the casinor is removed from the finger-piece'.

In combination, in a typewritingl machine, a rotative platen and line-spacing mechanism for the platen including a forwardly-extending line-space lever, a normally upstanding downwardly-movable fingerpiece movablymounted on the forward end of the line-space lever, and yielding means for automatically returning the finger-piece from a lowered to the upstanding position and for normally holding it at the upstanding position; and a cover for theA machine engageable with the upstanding finger-piece to press it downward to its lowered position when the cover is placed on the machine, and enabling said yielding means to return the finger-piece to its upstanding position when the cover is lifted from the machine. 4C. In` combination, in a typewriting ma- -chirie,` a rotative platen and line-spacing mechanism for the platen including a for- .wardly-extending line-space lever and a' normally-upstanding downwardly-foldable finger-piece pivotally mounted on the forward end of the line-space lever, said lingerpiece having a normal tendency to swing to its upstanding position and being adapted to be pressed downward to its folded position by a cover for the machine and to rise automatically to its upstanding position when the pressure of the cover is removed.

5. In combination, in a typewriting machine, a rotative platen and lline-spacing mechanism for the platen including a forwardly extending horizontally movable line-space lever provided with a lateral inwardly-extending forward end part, and a normally-upstanding finger-piece pivoted to said inwardly-extending end part of the line-space lever to fold laterally outwardly and downwardly to a position of non-use alongside of said inwardly-extending end part of the line-space lever, said fingerpiece having a normal tendency to swing to its upstanding position and being adapted to be pressed downward to its folded position by a cover for the machine and to rise automatically to its upstanding position of use when the pressure of the cover is removed.

6. In combination, in a typewriting machine, a rotative platen and line-spacing mechanism for the platen including a forwardly-extending horizontally-movable linespace lever provided with a lateral inwardlyextending forward end part, an upwardly and laterally outwardly curved finger-piece normally upstanding from` the line-space lever and pivoted on said inwardly-extending end part of the line-space lever to fold laterally outward andcdownward alongside thereof, and yielding means for automatically returning the finger-piece to and for normally holding it atthe upstanding position; and a. cover for the machine engageable with the upstanding finger-piece to press it downward uto its folded position when the cover is placed on the machine and to enable said yielding means to return the fingerpiec'e from its folded toits upstanding position when the cover is lifted.

7. In combination, in a typewriting machine, a rotative platen, a platen frame iny which the platen is journaled, and linespacing mechanism for thc platen including a line-space lever pivoted on the platen frame and projecting forward from the platen frame, an upstanding,downwardly-A foldable finger-piece pivotally mounted on the forward end of the line-space lever, and yielding means for automatically returning the finger-piece from its folded to 4its upstanding position and forA normally holding it at the upstanding position; and a cover for the machine engageable with the upstanding finger-piece to press it down to the folded position when the cover is placed on the machine, whereby the finger-piece may project for line-spacing use and may fold out of the way of the cover.

8. In combination, in a typewriting machine, a rotative platen,'a platen frame in which the platen is .journaled, and linespacing mechanism for the platen including a horizontally-movable line-space lever pivotedon and extending forward from one end of the platen fra-me, the line-space lever inger-piece pivoted to the said transversely extending end part of the line-space lever, so as to fold laterally outward and down- Ward alongside of said transversely-extending end part of the line-space lever to a pos1t1on ol' non-use, said inger-p1ece having a normal ltendency tomove automatically toits upwardly projecting position of use.

9. In comblnation, in a typewriting machine, a rotative platen, a platen framefm which the platen is journaled, and linespacing mechanism for the platen .including a horizontally-movable line-space lever pivoted on and extending l'orward from one end of the platen frame, the linespace lever being provided with a forward end part extending from the main part ot' the lever horizontally inward substantially at right angles to thel mainpart of the lever, an upwardly and laterally outwardly curved finger-piece pivoted to the said inwardlyextending end part of the line-space lever, so as to fold laterally outward and d0wnward alongside of said inwardly-extending end part of the line-space lever to a position of non-use, and a spring concealed between the said inwardly-extending end ypart of the line-space lever and the finger-piece for rocking the latter upon its pivot from its folded position-of non-use to its upstanding position of use and for normally yieldingly holding it at this position of use.

l0. In combination, in a typewriting machine, a rotative platen, a platen frame in which the platen is journaled, and linespacing mechanism for the platen including` a. horizontally-movable line-space lever pivoted on and' extendingv forward from one end ofthe platen frame, the line-space lever 'being provided with a forward end part extending' from the main part of the lever horizontally' inward Substantially at right lar'xglcs to the main part of the lev'er, an upwardly and laterally outwardly curvedl normally upstandingI finger-piece pivoted to the said inwardly-extending end'part of the line-space lever, so as, to fold laterally outward and downward alongside of said.

inwardly-extending. end part of the linespace leverto a position of non-use, a colled torsion springsurrounding the pivotal axis oi the vfinger-piece and concealed' between Witnesses CATHERINE A. NnwnLI JENNIE P. THORNE.

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