17 is a bottom view, looking upward, of the canopy junction box actuating plate of the second embodiment, taken substantially along the lines 17--17 shown in FIG. Referring to FIGS. 6, for contact with canopy junction box cover plate 78 as light fixture L enters the raised position, urging plunger 144 upwardly, opening the circuit within limit switch 142, and thus interrupting power to drive motor 34. If desired, a pulley (not shown) may be provided on cable guide 122, in a manner well known to those skilled in the art, to reduce the frictional forces that might be present where notch 128 receives hoist cable 24; this pulley would perform substantially the same function as notch 128, with less friction upon cable 24. A preliminary patentability search in class 362, subclasses 147, 384, 404, 391, 418, and 403, produced the following patents, some of which may be relevant to the present invention: Farrington et al., U.S. Pat. 2, 3, and 4, attached to light fixture L. Referring to FIG. 9 is a view of the end of the first embodiment hoist cable, showing the attachment of the anchor. Ceiling-mounted light fixtures, such as chandeliers and other similar devices, often have to be periodically accessed for cleaning, service, repair, and the replacement of bulbs. v. braking means for preventing the light fixture from descending except as caused by the rotation of the drive shaft; c. a ceiling junction box, mounted a fixed distance from the base, comprising: i. a first set of contacts for supplying a source of electrical power to the light fixture; and. 13. ii. It shall be understood that, alternatively, adaptor 2.89 could be omitted, causing threaded sleeve 2.80 to include sleeve 2.79, and having holes drilled therethrough for wires 2.92 as in the first embodiment. Ceiling junction box 52 is typically mounted to the ceiling using a "U"-shaped support bracket 53, well known to those skilled in the art, attached to joists J using nails or screws 54 and spanning the distance between joists J as shown. Referring to FIG. As hoist cable 24 winds and unwinds on take-up shaft 46, light fixture L is raised and lowered, traveling from a raised position adjacent ceiling C, as shown in FIGS. The apparatus as recited in claim 17, wherein the hoist mechanism additionally comprises a cable guide attached to the base for applying tension to the hoist cable, as it is wound upon the take-up shaft, by guiding the hoist cable at an angle not greater than ninety degrees with respect to the take-up shaft, and wherein the ceiling junction box further comprises: 19. FIG. Easily maintain your chandeliers and heavy lighting fixtures with Aladdin's motorized lift systems. 10 is a top plan view of the second embodiment of the present invention, shown mounted on top of a pair of ceiling joists. The apparatus as recited in claim 1, wherein the ceiling comprises a first joist and a second joist, said first joist spaced apart from said second joist, and further wherein the base is attached to said first and second joists with the hoist cable passing between said first and second joists. The spacing 90 between plates 88 is preferably greater than the width of first set of contacts 68 so that plates 88 are not susceptible to being shorted together by first set of contacts 68 for certain orientations of canopy junction box 56 with respect to ceiling junction box 52, as will now be apparent. As a variation on the present invention, a third pair of contacts 2.68 and 2.88 could be provided on cover plates 2.60 and 2.78, respectively, connected through presently unused contacts 2.180 on relay 2.168 to another on-off switch, not shown, in house wiring H, for operating another electrical device on light fixture L such as a second light or a ceiling fan. FIG. The apparatus as recited in claim 20, in which the winch means further comprises braking means for preventing the light fixture from descending except as caused by the rotation of the drive shaft. TLC Lighting Pros proudly recommends and installs the Aladdin Light Lift chandelier lift. FIG. 12, as now will be understood by those skilled in the art. This closing of switches 2.102 energizes limit relay 2.166, closing contacts 2.165 and 2.169. The apparatus as recited in claim 25, in which the braking means is a part of the drive motor. For adaptability to ceilings of various heights, cable 24 may be provided with excess length, sufficient to lower light fixture L for access. Remote control means 2.182, well known to those skilled in the art, comprises a transmitter portion 2.184 and a receiver portion 2.186, with receiver portion preferably mounted on base 2.26 and connected, at terminals 2.188, in place of wall box key switch 2.140 at terminals 2.190. 12. The apparatus as recited in claim 10, wherein the ceiling junction box further comprises a safety switch interposed between the source of electrical power and the first set of contacts, said safety switch being normally open when the light fixture is not in the raised position, said safety switch further being positioned for interruption of the flow of electricity to the first set of contacts as the light fixture leaves the raised position. Referring to FIG. The apparatus as recited in claim 1, wherein the ceiling junction box further comprises a safety switch interposed between the source of electrical power and the first set of contacts, said safety switch being normally open when the light fixture is not in the raised position, said safety switch further being positioned for interruption of the flow of electricity to the first set of contacts as the light fixture leaves the raised position. Seeking the best hoist chandelier lift system with good quality and affordable price from DHgate Canada site. Unlike the Sakurai patent, which is manually operated, the present invention is motorized and has only a single hoist cable attached to the light fixture. A chandelier design kit can cost over $1,000 and may be installed using professional … Wires 2.92 attach to contacts 2.88 preferably by means of slide-on fasteners 2.95 which connect to terminals or clips 2.94 which are riveted to contacts 2.88 by rivets 2.91. Winch means 2.45 also may mount to base 2.26 using screws 2.147 and nuts 2.148, passing through spacer block 2.149 chosen in thickness to place shafts 2.41 and 2.42 in substantial alignment. Take-up shaft 46 is supported by bearings 48, preferably self-aligning bronze bearings, mounted upon support brackets 50, which may be made of sheet metal, and may be secured by shaft collar 51 as shown. 4,316,238, issued Feb. 16, 1982; and Sakurai, U.S. Pat. Sakurai, U.S. Pat. The present invention relates, in general, to devices for raising and lowering light fixtures, and in particular, to an electrically motorized apparatus to raise and lower chandelier light fixtures to facilitate cleaning and changing of bulbs. 23. Chandelier Lifts lower high chandeliers, so light bulbs can be changed. Benjamin advertisement schedule 17 page F4A-5, Mar. In the preferred second embodiment, cover plate 2.78 has a metal bar 2.81 affixed, as by rivets 2.83, to the underside thereof. In the preferred second embodiment, shown in FIG. Chandelier Lift System This innovative product was the original light lift system, and the first reasonably priced motorized system to be produced in the United States. Referring to FIG. More specifically, none of the above patents disclose or suggest a motorized light fixture lift system, comprising: a hoist mechanism for raising and lowering a light fixture between a raised position adjacent a ceiling and a lowered position distant from the ceiling, said hoist mechanism comprising: a drive motor including a drive shaft, and a take-up shaft coupled to the drive shaft; a ceiling junction box including a first set of contacts for supplying a source of electrical power to the light fixture; a canopy junction box attached to the light fixture comprising a second set of contacts mounted for receipt of electricity from the first set of contacts when the light fixture is in the raised position; and, a single hoist cable attached at one end to the take-up shaft for being wound upon said take-up shaft and attached at the other end to the canopy junction box. Lift system 2.20 is also seen to include a canopy junction box 2.56, shown in FIGS. 10 and 12, pulley 2.122, preferably attached to base 2.26 using means well known to those skilled in the art, such as screws 2.125, nuts 2.121, and standoffs 2.127, guides cable 2.24 emerging from the upper end of tube 2.57 onto take-up shaft 2.46. 28. The lift will pay for itself because you no longer have to hire a cleaning service to clean the fixture and replace light bulbs. This electric hoist lifts at a rate up to 33 FPM single and 16.5 FPM double to get the job … 21 is a front sectional view of the third embodiment, taken substantially along the lines 21--21 shown in FIG. Power control means 2.160 comprises first switching means, such as normally-open "UP" relay 2.162, normally open "DOWN" relay 2.164, and first set of normally-open contacts 2.165 of limit relay 2.166, for applying power to and reversibly controlling motor 2.34, as well as second switching means, such as normally-closed lamp power relay 2.168 and second set of normally-open contacts 2.169 of limit relay 2.166, for applying power to and removing power from light fixture L. It should be noted that relays 2.162, 2.164, 2.166, and 2.168 all preferably have coil energizing voltages of 24 Volts AC, being driven by step-down transformer 2.170, well known to those skilled in the art, having a primary winding voltage of 110 Volts AC, selected for compatibility with power source P, and having a secondary winding voltage of 24 Volts AC, selected for compatibility with the coil energizing voltages of relays 2.162, 2.164, 2.166, and 2.168. While each of the above references disclose various apparatus for raising and lowering light fixtures, none disclose or suggest the present invention. When the light fixture L enters the raised position, adjacent the surface S of the ceiling C, switches 2.102 will become opened, applying power to the light fixture L through contacts 2.68, and removing power from motor 2.34 by de-energizing "UP" relay 2.162, in a manner previously described. 4,316,238, describes a light fixture and elevator therefor, comprising a horizontally reciprocal carriage, a biasing spring attached to the carriage, said carriage moving horizontally as the light fixture is raised and lowered. 4, is positioned for interruption of the flow of power to the drive motor as the light fixture enters the raised position, preferably with actuating plunger 144 of limit switch 142 extending downwardly through hole 146 in ceiling junction box cover plate 60, shown in FIG. Get the best deals on chandelier hoist when you shop the largest online selection at eBay.com. Now, the beauty of your chandelier can be easily maintained as cleaning and changing of bulbs can be done by … Now, the beauty of your chandelier can be easily maintained as cleaning and changing of bulbs can be done by anyone...anytime. 14. It should be understood that alignment marks (not shown) may be provided on canopy cover 76 and ceiling surface S to indicate when contacts 68 are in optimal rotational alignment with plates 88, allowing light fixture L to be rotated, if necessary, for proper mating between contacts 68 and plates 88. In this manner, when light fixture L is not in the raised position, and contacts 2.68 are exposed for access, electrical power is removed from contacts 2.68, in a manner hereinafter described, providing greater safety to a maintenance worker. Referring to FIG. The Max Load 440 lb. 9, secured to threaded sleeve 80 by securing means such as a cotter pin or preferably a nut 112 and bolt 110 inserted through hole 114 drilled transversely through threaded sleeve 80, and also inserted through opening 109 formed within anchor 108. The mechanism includes two sets of contacts that meet and are protected when the lamp is in the raised position, but is not motorized as is the present invention. The Aladdin Light Lift is a motorized lift system for your chandelier. TLC Lighting Pros provides free on site quotes for the installation of a chandelier lift. The advertisement for the Benjamin "SAFLOX" floodlight lowering attachment shows a hand operated mechanism that raises and lowers an outdoor floodlight. 10. 1, a first embodiment of the motorized light fixture lift system 20 is seen to comprise a hoist mechanism 22 for raising and lowering a chandelier or ceiling light fixture L, partially shown in FIGS. iii. Cover plate 78 is seen to have a hole 85 in substantial alignment with hex nut 82, providing clearance for sleeve 80. Obviously, other appropriate safety switch means could be similarly provided to remove power from contacts 68 when they are exposed for access, in a manner that will now be apparent to those skilled in the art, without departing from the scope of the present invention. Remote mount light lifts allow the motorized winch to be placed away … Free format text: 13 is a top sectional view of the ceiling junction box of the second embodiment, taken substantially along the lines 13--13 shown in FIG. No. In this second preferred embodiment, motor 2.34 may be a right-angle shaft gearmotor, such as the Model V3-65 right-angle shaft gearmotor, manufactured by Von Weis Gear Company, St. Louis, Mo., allowing compact placement of motor 2.34 on base 2.26 as shown in FIG. , some using chain drive mechanisms and a WOW factor if and when you sell the.! 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Wires 2.70 will pass through conduit 72 anchored to ceiling junction box 2.52 and canopy junction and.
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