US1583506A - Elevator signal - Google Patents

Description

P. S. VAN BLOEM ELEVATOR SIGNAL Filed Feb. 26, 1925.

May 4, 2e. 1,583,506

INVENTOR Paul Sc/ny/er Van Bloem.

ATTORNEYS when the lampis illuminated by .30

Patented May 4, 1926.

FATE

PAUL SGHUY'LER VAN Home, on] nn vrrsmnanfnnw YORK, essreno'n' '-1 0 vmm rnonucrs CORPORATION, or NEW YORK, 1v. Y A consonarrolv or NEW Yonx.

nmveron sic-nan Application filed Feb ary 2 1925- s ri lm. 11,798.

To all whom tmcy concern: I v Be it known that 1, PAUL ScH YLER VAN BLOEM, a citizen of the United States, and resident of Hempstead,f in the county of Nassau and State of New York, have .invented certain new and useful Improvements in Elevator Signals of which the 'following is a specification. A -This.invcntion, relates to signals for indicating the approach of'an elevator car and the direction of'its travel. l An object of the invention is to provide an elevator signal of simple form which when .u'nilluminated will be inconspicuous but "which when illuminate upon the approach Cf anelevator car will be rendered very conspicuous I and will distinctly indicate the direction of travel of the car.

.A further object is the'provisi'ono'l": a sigsubstantially j conceal a, lamp, ,The lamp cover is placed over a signal lamp project ing from or mounted in the wall adjacent the eleva or shaft and adapted to be i1- luminated when the elevator car approaches. The cover bears a direction indicating character which when unilluminated by the lamp isindistinct or entirely invisible but which pr a' h of'a arw ll b ome distinctly visible; The cover lens is also designedto reiract light rays received from the signal lamp and direct them rearwardly upon the wall back of the signal in order to surround the signal with a halo, This lncreases the con'spicuousness of the signal and calls at- "tention to the approach of the car.

' In the drawings: Fig. l is a front view of the signal lens; Fig. 2 a sectional view showing the lens mounted over the signal lamp; c Fig. 3 a front view'upon a reduced scale of a difierently shaped signal lens; and

0 shown) by the approach of an elevator car,

'A dished orsubstantially cup-shape glass 7 lens .3, is placed over the lamp 1 andsurthe ap-.

rounds a cl ses, the, outwardly project- 1ng end of theilamp. The lens 3 is formed with a slightly convex, substantially verti cal, front signal-bear ng portion-o Wall 4:,

preferably circular n outline. Th fron 7 around its edges and thefrear' end of said .supportlng portlo'n'is suitably flanged an is adaptedto fit against the 'supporti ng Wal r other lens supporting m dium-Ii The onclosing 7 Wall or m ber p ef rably *conti uous. and annular, as'shown Fig 1 and 2. Thesaid support ng portionirleyy however, be rectangular in cross section, and continuous as indicated in Fig. 3, which ilnal lens in'the-form of a cover adapted to supporting wall. and to completelyenclose the projcctingflportion o th signal lamp The lens .3 is preferably formediof translucent glass of a suitable c lor o tha w e the lens is dark oriunilluini at d the fa of the signal-bearing fron por onw l a a uniform color-land will give no evidence of bearlng a signal or directionndicating charact r. -Whcn, however, 'thel i i l 'luminated light rays will pass through the a substantially vertical front signal-bearing portion and through the continuous "enclos ng and supporting, sub t n ally horizontal side mcrn cr5- The. di on ind cating signaLIor character'wilhbe' more brilliantly illuminated than he :surr und- 11g por on o the igna aring member owing to he. fact-t a 'it s o considerab y ss thickness than themainbody oi the sa d I member, Fig. 4 a sect onal view upon, a reduced The outer faoeot the signal-bearing front wall or portione of the lens is slightly roughen d as at 1 2 to provideda light" dif-- fus ng surface and the inher'face oi the said wall is formed with. a depression 6 in th form f a direction'indi a ing character- This charac r is indlstinct or invisible when the lamp is unilluminated, J W en-the lamp is illuminated by the approach of a oar'the entire front face of the lens will become lum inous and th direction indicating charac er will be distinctly visible "owing to the, re-- back of the lens.

duced' thickness of the wall 4 at de pression and also to the reflecting and refracting effect of the side walls of the de the bottom of the depression whereby they will reflect light rays from the lamp and direct them outwardly through the bottom of the depression. This concentration of the light rays upon the character renders it more luminous. 7

The inner and outer faces 7 and 8 respectively of the portion 5 of the lens, are

straight from front to rear and diverge rear- Ition 5 is thus tapered and increases in thickwa'rdly as shown; The side member or porness from front to rear and acts upon the light rays received from the enclosed lamp in the manner of a prism. It refracts the said rays and, as they emerge through the outer face 8, causes them, to be directed toward the room wall or lens support at the This causes the signal to be surrounded by a halo of light which greatly increases its conspicuousness an calls attention to the approach ofa car. The member 5 is formed upon its outer face wlth radiating ribs 9 which diffuse the light and. add to the ornamental appearance of the signal. These ribs 9 taper in the same manner as the member 5 so that they also will refract the light rays from the lamp 1 rearwardly. At its rear edge the substantially horizontal side portion or member 5 is formed with a flange 10 which extends aroundthe lens and is adapted to abu the room wall 1. The lens is held in place upon the room wall in any suitable manner as by screws 11.

While I have shown and described my invention as adapted for use as an elevator signal, it obviously has other adaptations,

' as for instance, it might be used as a sign or for illuminating purposes of a particular character. It is also obvlous that certaln.

' features of the signal structure such as the integral forming of the front and side walls and their cross sectional shape may be varied without departing from the spirit of the invention. Fig. 4 illustrates a form of the inventionwherein the front portion of.

the lamp coveringis formed separately from the continuous lamp surrounding portion. surrounding portion is also shaped somewhat differently in cross section from that shown in Figs. 1 and 2.

-What I claim is: I 1. A. signal device comprising acupshaped lens formed with a vertically arranged front light-diffusing portion bearing an indicating character, and a substantially horizontal cylindrical lamp-surrounding portion extending rearwardly from the said front portion, the inner and outer surfaces of said cylindrical portion being straight in longitudinal section and diverging rearwardly and the rear end of said cylindrical portion being open, whereby the lens is adapted to enclose a lamp and the lamp-surrounding portion is adapted to refract rays from the lamp and direct them. rearwar'dly and the front portion will be luminous and surrounded with a halo of light caused by the rearwardly refracted light rays.

2. A signal device comprising a cupshaped lens formed with a' vertically arranged front light-diffusing portion bearing an indicating character, a substantiallyhorlzontal cylindrical lamp-surrounding ortion extending rearwardly from the sai front portion, the inner and outer surfaces of said cylindrical portion being straight in longitudinal section and diverging rearwardly and the rear end of said cylindrical portion being open, whereby the lensis adapted to enclose a lamp and the lamp-surrounding portion is adapted to refract rays from the lamp anddirect them rearwardly and the front portion will be luminous and surrounded with a halo of light caused by the rearwardly refracted light rays, and radially arranged longitudinally extending ribs on the exterior surface of the substantially cyl-- indrical lamp-surrounding portion, said ribs causing a lateral diffusion of the light rays as well as the rearward refraction thereof.

3. A signal device comprising a cupshaped lens formed with a vertically arranged front concavo-convex light-diffusing portion having parallel inner and outer surfaces and bearing an indicating character on its inner face, and a substantially horizontal cylindrical lamp-surrounding portion extending rearwardly from the said front portion, the inner and outer surfaces of said cylindrical portion being straight in longitudinal section and diverging rearwardly and the rear end of said cylindrical portion being open, whereby the lens is adapted to enclose a lamp and the lamp-surrounding portion is adapted to refract rays from the lamp and direct them rearwardly andthe front portion will be luminous and surtwo degrees of illumination of said front wall, and a substantially horizontal cylindrical lamp-surrounding portion extending rearwardly from the said front portion, the

inner and outer surfaces of said cylindrical portion being straight in longitudinal section and diverging rearwardly and the rear end of said cylindrical portion being open, whereby the lens is adapted to enclose a lamp and the lamp-surrounding portion 1s adapted to refract rays from the lamp and direct them rearwa rdly and the front portion will'be luminous and surrounded'with a halo of light caused by the rearwardly refracted light rays.

5. A signal device comprising a cupshaped lens formed with a front light-diffusing portion bearing an indicating character on its inner face, and a lamp-surrounding portion extending rearwardly from the said front portion, the inner and outer surfaces of said lamp-surrounding portion being straight in longitudinal section and diverging rearwardly and the rear end of said portion being open, whereby the lens is adapted to enclose a lamp and the lampsurrounding portion is adapted to refract rays from the lamp and direct them rearwardly and the front portion will be luminous and surrounded with a halo of light caused by the rearwardly refracted light rays. I

6.'A signal device comprising a cupshapedvlens formed with a front light-diffusing portion bearing an indicating character on its inner face, alamp-surrounding portion extending rearwardly from the said front portion, the innerand outer surfaces of said lamp-surrounding portion being straight in longitudinal section and diverging rearwardly ahd the rear end of said portion being open, whereby the lens is adapted to enclose a lamp and the lampsurroun'ding portion is adapted to refract rays from the lamp and direct them rearwardly and the front portion will be luminous and surrounded with a halo of light caused by the rearwardly refracted light rays, and radially arranged longitudinally extending ribs on the exterior surface of the lamp-surrounding portion, sald rlbs causing a lateral diffusion of the light rays as well as the rearward refraction thereof.

7. A signal device comprising a cupshaped lens formed with a front concavoconvex light-diffusing portion having paran indicatingcharacter on its inner face,

and a lamp-surrounding portion extending rearwardlyvfrom the said front portion, the

inner and outer surfaces of said lamp-surrounding portion being straight in longitudinal section and diverging rearwardly and the rear end of said portion being open, whereby the lens is adapted to enclose a lamp. and the lamp-surroundingportion is adapted to refract rays from the lamp and direct them rearwardly and the front portion will be luminous and surrounded with a halo of light caused by the rearwardly refracted light rays.

8. A signal device comprising a cup shaped lens formed with a front concavoconvex light-dilfusing portion having parallel inner and outer surfaces, aportion of said front wall being thinner than the main body thereof to give two degrees ofillumination of said front wall, and a lamp-surlens is adapted toenclose a lamp and the lamp-surrounding portion is adapted to refract rays from the lamp and direct them rearwardly and the front portion will be luminous and surrounded with a halo oflight caused by the rearwardly refracted light'rays.

9. A. signal device comprising a cupshaped lens formed with 'a vertically arranged front light-diffusing portion, and a substantially horizontal hollow annular lamp-surrounding portion, the rear end of saidannular portion being open to adapt the lens toreceive a lamp, the inner and outer surfaces of said annular portion being constructed and arranged to refract rays from the lamp anddirect them rear wardly, whereby the front portion will be luminous with diffused light rays and surrounded with a halo of light caused by the rearwardly refracted light rays.

In testimony whereof I hereunto affix my i signature.

PAUL SCHUYLER VANv BLOEM.

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