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Publication numberUS1727377 A
Publication typeGrant
Publication dateSep 10, 1929
Filing dateMay 25, 1928
Priority dateMay 25, 1928
Publication numberUS 1727377 A, US 1727377A, US-A-1727377, US1727377 A, US1727377A
InventorsMeinecke Otto J
Original AssigneeUnderwood Elliott Fisher Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Typewriting machine
US 1727377 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Sept. 10, 1929. o. J. MEENECKE 1,727,377

TYPEWRITING MACHINE Filed May 25, 1928 Affarney? /nvenf0r:

Patented Sept. 10, 1929.

UNITED STATES PATENT OFFICE;

OTTO J'. MEINEGKE, OF NEW YORK, N. Y., ASSIGNOR TO UNDERWOOD ELLIOTT FISHER COMPANY, OF NEW YORK, N, Y.,

A CORPORATION OF DELAWARE.

I TYPEWRITING MACHINE,

Application filed May 25,

The invention relates to means for illuminating the interior of a sound-proof casing for typewriting machines, said illuminating means to enable the operator to watch the work within said casing through a usual top window provided in the liftable casing cover, without being annoyed by light reflecting from the window-pane. A usual type of a sound-proof casing exposes only the operating keyboard to the touch of the operator, and otherwise entirely encloses the machine, said cover being liftable for ready access to the machine.

The invention provides an electric light and an opaque hood or reflector encasing said light and which is'held upon, or close to, the window-pane above the line of vision, so as to positively direct the light through the window-pane upon parts to be illuminated. Due to the provision of flexible connections for supplying the electric current, the light is liftable together with the casingcover.

The preferred lighting attachment includes a trough-like hood or reflector to house suitably-shaped electric incandescent bulbs. The reflector substantially extends from side to side of the window, and resilient latching means are provided to hold the reflector directly upon the outer surface of a preferred glass window, so that no, light is allowed to escape except through the window-pane To aid this purpose, the edges of the reflector facing the window-pane may be trimmed with strips of suitable pliable material, so as to snugly close upon the sur face of the pane. a

A' feature of the invention is concerned with a simple method of securing the reflector upon the casing, and provides a bent over edge or flange at the rear of the reflector. By slipping this'edge between the rear edge portions of the windowane and the adjacent windowdedge, the re ector may be located, whereupon preferred flat springmembers or latches, which are pivoted upon each end of said reflector, may be manipulated to' engage with correspondin recesses 1928. Serial No. 280,413.

. volve special features of original construction inthe casing itself, or material alterations in, or additions to, a casing-structure already com leted.

Another eature includes resilient means provided within said reflector for holding "for attaching the reflector upon the casing.

Figure 3 is a cross-section substantially taken from Figure 2, clearly showing the method of attaching, and showing the relation between the light-source and the caraiaghefplaten, the latter indicated in dot and Figure 4 is a cross-section of the detached reflector, showing preferred clas ing means for holding the floating ends 0 the bulbs,

and showing the strip of pliable material attached to the front edge of the reflector.

A sound-proof casing for typewriters, as shown in the drawings, Figure 1, has side portions overhanging the base of the casing, so as to accommodate the movements of the typewriter-carriage. The casing, as shown, includes a lower body-portion or shell 10, which receives the typewriting machine to be seated therein, and which is, provided with a rectangular opening 11, through which projects the forward part of the machine-frame 11, so as to expose the operating keyboard, indicated at 12, to the touch of the operator.

A liftable cover 13 is provided on top '0 the shell 10 to complete the casing, the front edges of the cover and of said shell, respectively,'being formed with lips or cushions 14, said lips to close upon each other to prevent escape of sound, while permitting the passage .of carriage-operating handles upon the casing-cover was to ice there- 15 16 flector in place. This method does not in- The operation of the machine may be 0bv flector upon the glass.

i '45 mally set to point. forwardly,

I usual sound-deadening to freely float about; its pivot 24.

served through the oblong glass windowpane 17, which forms part of the cover, and which is mounted upon the inside thereof by-m'eans of metal strips 18 which hold the window-pane seated upon the supporting ledges 18 of the cover 13. Suitable strips 19 of shock-absorbing material are interposed between the preferred glass window-pane and the supporting ledges 18". The window setting is most clearly shown in Figure 3, which figure also indicates the casing.

An electric light attachment, which, ac-

cording to the invention, is to illuminate the interior of the casing, substantially includes a light-containing trough-like hood or reflector 21, which is held down upon the surface'of the window-pane above the line of vision, so as to throw light directly through the glass upon the typewriting machine. Hold-down means for the reflector are such as to allow the same to be attached to a casing of standard type, as shown. The preferred method of attachment requires the rear edge of the trough or reflector 21 to be formed with a bent-over portion or flange 22, which may be slipped into a clearance between the edge portion of the glass and the adjacent window-led e to locate the ret furthermore requires the front portion of the reflector to have attached thereto a stri terial, as rubber 23, and w ich is to be resiliently held down upon the glass by flat spring-members or latches 24, which are to lock the reflector-body in position, as will be presently described.

, The trough-like hood or reflector 21' is formed with end pieces 25 which are to carry lugs or stubs 26, each stub having pivoted thereon one of said flat spring-memers or latches 24, which may be allowed The free end of the spring-member or latch is norand has riveted thereon a finger-piece27 by which it may be'sprung downwardly over an interposed pin 28, so that a projection 29'upon dinary switches 32 said finger piece will register with a correslight sideward outward movement of the tensioned spring-member will then bring the projection 29 into engagement with the recess 30 and so lock the attachment in place.

The left-hand side of Figure 2 shows the giselpgaged position of latch 24 in dot and In'the present embodiment, the reflector 21 encloses two cylindrical bulbs 31, each of which is mounted in a socket 32 secured upon the end piece 25 of the reflector. Or-

allow each bulb to be separately lit. Clasping metal strips 33 to hold the floating end of each bulb are shown lining 20 of the of pliable maof said shield ofl its light from the vision of the operator, and a flexible cable-connection for in Figure 4 to be secured upon the inside of the reflector. Their purpose is to prevent the bulbs from vibrating or working 'iin rovements may be used without others.

aving thus described my invention, I claim:

1. The combination with a typewriter and a sound proof casing having a transparent top-window pane, of means on the top of the casing for illuminating the interior "of the casing, said means including an electric bulb arranged close to the outer surface of the window-pane, so as to throw light through the pane upon the typewriting machine, an opaque hood fastened to the top of the typewriter-casing and encasing the bulb, so as to shield oif its light from the visionof the operator, and means for supplying electric current to the bulb.

2. The combination with a typewriter and a soundproof casing having a liftable cover provided with a transparent top-window pane, of means on the top of the cover for illuminating the interior of the casing, said means including an electric bulb arranged close to the upper part of the outer surface of the window-pane, so as to throw light through the pane upon the typewriting machine, but to be out of the line of vision of e the operator looking at the machine, an

hood detachably fastened to the top opaque cover and encasing the bulb, so as to supplying electric current to the bulb, but allowing a lifting of the bulb together with said cover of the casing.

3. The combination with a typewriter and a soundproof casing having a transparent top-window pane, of means on the top of the casing for illuminating the interior of the casing, said means including an electric bulb arranged close to the upper part of the A outer surface "of the window-pane, so-as to throw light through the pane upon the typewriting machine, but to be out of the line of vision of the operator looking at the machine, a trough-lik" opaque hood encasing the .bulb, so as to shield off its light from the vision of the o rator, but allowing the passage of the lig t through the windowpane, means for anchoring the rear part of the hood detachably to the top of the casing, means for light-tightening the lower edge of the front part of the hood with reference to the window-pane, means for yieldingly pressing the hood against the window-pane, means for fastening the bulb within the trough-like hood, and means for supplying electric'current to the bulb.

4. The combination with a typewriter and a soundproof casing having a transparent top-window pane, of means on the top'of the casing for illuminating the interior of the casing, said means including an electric bulb arranged close to the upper part of the outer surface of the window-pane, so as to throw light through the pane upon the machine but to be out of the line of vision of the operator looking at the machine, a trough-like opaque hood encasiug the bulb, so as to shield off its light from the vision of the operator. but allowing the passage of the light through the window-pane,'a bent-over flange at the rear part of the hood to be slipped between the rear edge of the window-pane and the adjacent window-ledge, means for light-tightening the lower edge of the front part of the hood with reference to the window-pane. means for yieldingly pressing the hood against the window-pane, means for fastening the bulb within the trough-like hood, and means for supplying electric current to the bulb.

5. The combination with a typewriter and a soundproof casing having a transparenttop-window pane, of means on the top of the casing for illuminating" the interior of the casing, said means including an electric bulb arranged close to the upper part of the outer surface of the window-pane, so as to throw light through the pane upon the typewriting machine, but to be out of the line of vision of the operator looking at the machine, a trough-like opaque hood encasing the bulb, so as toshield off its light from the vision of the operator, but allowing the passage of the light through the window-pane, means for anchoring the rear part of the hood detachably' to the top of the casing. astrip of pliable material at the lower edge of the front part of the hood bearing against the window-pane, means for yieldingly pressing the hood against the window-pane, means for fastening the bulb within the trough-like hood, and means for supplying electric cur rent to the bulb. i

6; The combination with a typewriter and a. soundproof casing having a transparent light-tightening the lower edge of the front part of the hood with reference to the win dow-pane, leaf-springs fixed at both end walls of the hood near to the rear part of the hood and pressing down the front edge of the hood if the front ends of the springs are brought into locking engagment with the top of the casing, means for fastening the bulb within the trough-like'hood, and means for supplying electric current to the bulb.

7. The combination with a typewriter and a. soundproof casing having a transparent top-window pane, of means on the top of the casing for illuminating the interior of the casing, said means including electric bulbs arranged close to the outer surface of the window-pane, so as to throw light through the pane upon the typewriting machine, but to be out of the line of vision of the operator looking at the machine, an opaque hood fastened to the top of the typewriter-casing and encasing the bulbs, so as to shield of? their light from the vision of the operator, shield-plates in the ends of the hood with sockets to receive the foot-ends of the bulbs, clasps within the hood for holding the head-parts of the bulbs, and means for supplying electric current to the bulbs.

OTTO J. MEINECKE.

casing, said means including an electric bulb arranged close to the upper part of the outer surface of the window-pane, so as to throw light through the pane upon the typewriting machine, but to be out of the line of vision of the operator looking at the machine, a. trough-like opaque hood encasing the bulb, so as to shield off its light from the vision of the operator, but allowing the'passage of the light through the window-pane, means for anchoring the rear part of the hood detachably to the top of the casing, means for

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4626117 *May 5, 1981Dec 2, 1986Hermes Precisa International S.A.Typewriter
US4813798 *Jun 30, 1986Mar 21, 1989Schulze Siegfried MLighting arrangement for typewriters or printers
Classifications
U.S. Classification362/89, 400/690.1, 362/249.1
International ClassificationB41J29/18, B41J29/19
Cooperative ClassificationB41J29/19
European ClassificationB41J29/19