US2283010A

US2283010A - Store lighting apparatus

Info

Publication number: US2283010A
Application number: US349588A
Authority: US
Inventors: Henry L Logan; Wince Vearl
Original assignee: Holophane Corp
Current assignee: Holophane Corp
Priority date: 1940-08-02
Filing date: 1940-08-02
Publication date: 1942-05-12
Anticipated expiration: 1959-05-12

Description

May 12, 1942. H. L. LOGAN ETAL STORE LIGHTING APPARATUS Filed Aug. 2, 1940 2 Sheets-Sheet 1 INVENTORS HENRY L. loan/v VEAEL W/NCE B) E, ATTORNEY y12,19 2. H. L. LOGAN Em 2,283,010

STORE LIGHTING APPARATUS Filed Aug. 2, 1940 2 Sheets-Sheet 2 INVENTOR5 flan/m Z. Z OG/M/ VEARL W/NCE ATTORNEY light source and reflector above the lens ara bolt 20. This bolt passes through a yoke 2| form. it being understood that the drawings are tically downward. To tilt the beam the second Patented May 12, 1942 2,283,010

.UNITED STATES PATENT OFFICE 2,283,010 sroaa LIGHTING APPARATUS Henry L. Logan, New Rochelle, N. and Vearl wince, Newark, Ohio, assignors o Holophane Company, Inc., New York, N. Y., corporation of Delaware Application August 2, 1940, Serial No. 349,588 7 Claims. (Cl. 24078) The present invention relates to store lighting ing and it carries a pair of parallel trim members apparatus, and is more particularly directed ll adapted to support lenses l2 and I3. The lens toward lighting apparatus arranged to facilitate l2 cooperates with a lamp l4 and reflector I5 accent lighting of merchandise on display. .to produce general illumination. The lens I3 is In stores, display rooms and the like the light- 5 designed to cooperate with a lamp l6 and reing apparatus is usually fixedly mounted in or flector I! to produce a concentrated beam of near the ceiling, and the displays are placed in light for display lighting. The lens l3 may be various locations relative to the lighting units. shifted to the left on top of the lens l2, as indi- The present invention contemplates improvecated in dotted lines in Figure 4, to provide acments in lighting fixtures whereby the light beam 10. cess to the lamp and reflector above the lens l3. from the relatively fixed lighting unit may be The lamp I 6 and the reflector I! are supprojected toward the display in whatever locaported from a bar I 8. The ends of this bar tion it may be placed so as to accent the lighting carry thumb screws l8 passing through slotted of this display. brackets I 9 suitably secured to' the top of the The present invention also contemplates the box so that the elevation of the bar and parts provision of lighting units of the type referred carried thereby may be adjusted. The bar l8 to having a fixed horizontal lens and a movable has a vertical opening in the center to receive ranged so that they can be shifted away from having depending sides 22 and23. The yoke can the lens axis and turned about the lens axis, so be turned through substantially 360, suitable that the projected beam has varying angles of stops 23' and 23" being provided to prevent obliquity in selected directions. The lens, light complete rotation. source and reflector above referred to may form The side 22 of the yoke is provided with a part of a piece of lighting apparatus which also lower pair of

pins

24, 24 and an upper pair of embodies a general lighting luminair having a pins 25, 25. The side 23 of the yoke is prolens plate somewhat similar to the one used with 'vided with upper and lower pins similar to the the first light source mentioned. .The two lupins 24 and 25 and having the same reference minairs may be mounted in a single housing with characters and has upperand lower openings 26 the lens plates forming the bottom of the housto receive a bolt 21. The upper pins 25 and the ing, and in this case the lens plate under the bolt 21, when in the upper hole, form four guides adjustable lamp and reflector may be moved over to receive the

sides

28 and 29 of a second subon to the other lens plate and supported there stantially horizontal yoke 30. The pins and the to give access to the adjustable lamp and rescrewpass through slots 3| in the sides 28 and flector so that the same may be shifted about 29. The yoke 30 supports a lamp socket 32 for manually. Tl the lamp IS. The yoke also has brackets "33 for Other and further objects will hereinafter apthe spherical reflector l7. pear as the description proceeds. When the lamp and reflector are inthe full The accompanying drawings show, for purline positionof Figure 1 the lamp filament is at poses of illustrating the present invention, an the focal point of the lens system l3, and a embodiment in which the invention may take very concentrated beam of light is pr j Verillustrative of the invention rather than limiting yoke 30 is shifted from the full line position tothe same. ward the dot-and-dash line position of Figure In these drawings: .2

Figure 1 is a vertical sectional view through the trav s a u v pa as indi at d so as to be lighting unit with the lamp and reflector shown kept at the proper distance from the lens. Acin full lines in the lens axis and in dot-and-dash, id ntal r moval f th s nd y k s prevented lines shifted out of the lens axis; by screws 34 which pass close by the openings 35 Figure2 is an inverted plan view of the lightof the slots 3!. The second yoke can be clamped ing apparatus; in any radial position by the thumb nut 36 carried Figure 3 is a side elevational view with parts on the bolt The y an be turned round in section and showing in dotted line th r about the axis of the bolt 20, as indicated in the flector in lowered position for general lighting; d lines of igure 1, so that the and beam will be oriented.

Figure 4 is a sectional view more or less dia- In some instances it ay be des rab e to 0bgrammatic of store lighting apparatus embodying tain general illumination instead of special il a general lighting luminair and the luminair lumination from the lighting apparatus above of Figures 1 to 3. the plate l3. This may be had by removing the In Figure 4 a box 10 is diagrammatically illamp I6 from the socket 32, shifting the second lustrated. It may be mounted in or on the ceilyoke from the upper position shown in Figure 1 2 to the lower position which is'shownin dotand-dash lines in Figure 3, A lamp having its light source at X is then inserted in the socket 38 carried on a bracket 39 secured to the sides 22 of the yoke 2|. With this change the light source will be brought closer to the lens with the result that the light is spread wider by the lens.

It is apparent that, within the scope of the invention, modifications and diiferent arrangements may be made other than is herein disclosed, and the present disclosure is illustrative merely, the invention comprehending all variations thereof within the scope of the claims.

What is claimed is:

light beam orientable about a vertical axis and of varying angle of obliquity of the axis of the projected beam, comprising a yoke pivoted to swing about said vertical axis and having downwardly extending arms, a second yoke having generally horizontal arms received within the first arms, guiding and coupling means between the vertical and horizontal arms whereby when the second yoke is moved in a generally horizontal direction it is caused to traverse a downwardly concave path, a downwardly acting spherical reflector secured between the arms of the second yoke with its center positioned to move through a path radial with respect to its vertical axis, a lamp socket and lamp carried by the second yoke with its filament at the center of the tical axis of the first yoke adapted to receive the divergent direct and reflected light and transmit it in a beam at reduced angles of divergence with obliquity and orientation as determined by the offsetting of the light center with respect to the said vertical axis and its orientation about said axis.

2. Lighting apparatus such as claimed in claim 1, wherein the guiding and coupling means include curved slots in the horizontal arms and pins in the arms of the first yoke.

3. Lighting apparatus comprising a yoke pivoted to swing about a vertical axis and having downwardly extending arms, a second'yoke having generally horizontal arms received within the first arms, guiding and coupling means between the vertical and horizontal arms whereby when the second yoke is moved in a generally horizontal direction it is caused to traverse a downwardly concave path, a downwardly acting spherical reflector secured between the arms of the second yoke with its center vertical axis, a lamp socket carried by the second yoke with its axis passing through the reflector the second yoke to the first yoke at a lower elevation, a second lamp socket carried by the first yoke with its axis passing through the said vertical axis, and a lens whose axis is under the vertical axis of the first yoke adapted to receive the divergent direct and reflected light and transmit it in a beam at reduced angles of divergence with obliquity and orientation as determined by the ofisetting of the light center with respect to the said vertical axis and its orientation about said axis when the yoke is in the upper position and a lamp in the first socket only, and adapted, when positioned to move through a path radial with respect to its 1. Lighting apparatus adapted to produce a a lamp is in the second socket onlihto receive more divergent direct and reflected light and transmit it in a symmetrical beam at less reduced angles of divergence.

, 4. Lighting apparatus adapted to produce a light beam orientable about a vertical axis and of varying angle of obliquity of the axis of the projected beam, comprising a yoke pivoted to swing about said vertical axis and having downwardly extending arms, inwardly extending pins carried by the arms of the yoke on the opposite side of a vertical plane through the axis, a second yoke having generally horizontal arms within the first arms, a downwardly acting spherical reflector between the arms of the second yoke, a lamp carried by the second yoke with its filament at the center of the reflector, the arms of the second yoke being provided with elongated slots which receive the pins and along which the second yoke may be moved radially, the slots being located so that when the second yoke is at one end of its movement, the light center is sub- I stantially in the said vertical axis.

reflector, and a lens whose axis is under the vercenter, alternative coupling means for securing 5. Lighting apparatus such as claimed in claim 4, wherein the slots extend obliquely downwardly when the second yoke is in said position so that when the second yoke is moved to shift the light center away from said axis the light center is lowered.

6. In a lighting fixture yoke pivoted to swing about a vertical axis and having opposed uides disposed in a horizontalplane, a second yoke having cooperative guides downwardly concave in vertical planes whereby the second yoke may be moved radially in a curving path, a light source and concentric spherical reflector carried by the second yoke and placed thereon so that it. is at the highest elevation and substantially in said vertical axis when the second yoke is at one extreme position.

7. Apparatus for general lighting and display v lighting of stores and the like comprising adownwardly opening enclosure carrying a lens supporting frame with parallel rails below the bottom of the enclosure, a lamp and a downwardly acting reflector mounted in the enclosure above and midway between the rails, a square lens carried on the rails and normally directly below the, lamp and reflector and cooperable therewith to produce a downward beam of. wide spread light for general illumination, a yoke supported from the top of the enclosure for movement about a vertical axis midway between the rails and laterally of the said source and reflector, a second yoke slidably carried by the first yoke for lateral shifting relative to said vertical axis, a lamp and downwardly acting spherical reflector carried by the second yoke, a second square lens carried by the rails in abutting relation with the first lens and having its center in said vertical axis, the second lens, reflector and source cooperating to produce a narrow, concentrated beam emitted in a direction determined by the adjustment of the yokes, the extent of said adjustment being substantially coextensive with the area of the second lens, each lens being laterally shittable on top of the other lens to provide sufllcient space {or access to the corresponding source and reflector for adjustment, removal or lamp renewal.

- HENRY L. LOGAN.

VEARL WINCE'.