Abstract: A lamp tilting mechanism for a searchlight in which a light source including a lamp, a reflector, a socket and a socket holder is supported so as to be rotatable around a horizontal axis in a housing of the searchlight. Disposed behind the light source within the housing is a motor having a horizontal output shaft to which an arm-like slotted lever is fixed at one end. A horizontal pin is received loosely in the slot and fixed at an end to the light source whereby when the motor rotates, the light beams are tilted.

Abstract: Apparatus is described for a searchlight in which a lamp is mounted in a housing for both vertical and horizontal movement. Vertical drive means which is mounted in the housing includes a gear having a tooth portion and a ramp portion to permit up and down movement of said lamp. The housing has an integrally formed ring gear with a tooth portion less than 360 degrees and a ramp portion. A horizontal drive means engages the ring gear and drives the lamp in a horizontal plane less than 360 degrees.

Abstract: In a searchlight including a light source which in turn includes a lamp, a reflector and a socket, and a lamp tilting section for swinging the light source vertically within a housing of the searchlight, a mechanism for mounting the light source and the lamp tilting section includes a support frame slidingly inserted in the housing through a guide on the inner surface of the housing to support the light source and the tilting section. The support frame is removably fixed to a front opening end of the housing.

Abstract: A remote controlled spotlight system having a pair of spotlights on the ends of a horizontal shaft extending through a housing. A vertical shaft extends out of the housing for mounting purposes. An electric motor in the housing rotates the horizontal shaft about its longitudinal axis to aim the spotlights up or down. A second electric motor in the housing rotates the housing about the longitudinal axis of the vertical shaft to aim the spotlights left or right. The electrical motors are remotely controlled. An electrical power cord extends through the bore of the horizontal shaft, out through a hole in the horizontal shaft, and winds around the horizontal shaft at least twice. The cord then winds around the vertical shaft at least twice, and then passes through the bore of the vertical shaft to a power source.

Abstract: An actuator mechanism for moving a headlamp in a vertical direction between an exposed position and a concealed position in which the headlamp is attached to a pair of laterally spaced parallel rods for guiding the headlamp as it is moved between the aforementioned positions.

Abstract: A variable beamwidth stage light relying upon an axially movable reflector for changes in beamwidth. The reflector has a plurality of radially outwardly and axially forwardly extending leaves in side-by-side relation to define a bowl-shaped reflector surface. A stationary support flange is in frictional contact with the radially outward surface of each leaf. The reflector leaves are sandwiched between a base member and a ring member at the base of the reflector. A motor driven lead screw is attached to the base member to cause axial movement of the reflector relative to the support flange. The reflector defines a first and a second focal point along the axis of the reflector. A light source is fixed at the first focal point, which remains substantially fixed relative to the base member.

Abstract: A winch having a pair of first and second cylindrical drums; a drive to simultaneously axially rotate the drum; a reciprocating bracket which travels substantially axially parallel to the drums when the drums rotate; the bracket having a pair of spaced apart first and second rope guides; the first guide being capable of receiving a rope being level wound on, or unwound from, the first drum; and the second guide being capable of receiving a rope being level wound on, or unwound from, the second drum.

Abstract: The present invention provides a self-adjusting headlight system for vehicles to maintain proper forward vertical alignment of the headlight even when the vehicle is unevenly loaded in the front to rear direction. The system comprises a housing which is secured to the body of the vehicle. A headlight frame is provided, within which the headlight id mounted. The frame is mounted on a pivot secured to the housing, to pivot freely about a horizontal axis. The frame is balanced on the pivot so that the beam of the headlight is normally properly forwardly aligned. The balance means comprises a pendulum downwardly extending from the frame on an arm. A portion of the pendulum is attractive to magnetism. An electromagnet is secured to the car body and positioned in the vicinity of that portion of the pendulum so as, when actuated, to secure the pendulum and hence the headlight frame, in that particular relative position with respect to the car body. The electromagnet is actuable by a driver as required.

Abstract: A miniature spotlight for short distance illumination and optical effects producing an extreme variable exit angle of illumination and maintaining a constant even field of illumination is of such complex configuration that the use within a stage set or hidden behind small objects will be suitable for photographic and cinematographic close-up settings.

Abstract: A set of tire change lights for illuminating the tires of an automotive vehicle during a tire-changing operation comprises four lights, each of which is mounted near the wheel well above a different one of the vehicle's tires. Each light includes a light source, such as a light bulb, which is mounted inside a lamp housing. The lamp housing, in turn, is mounted for manual or automatic reciprocation from a retracted position within a concealed stationary mounting case in the body of the vehicle to an extended position outside of the vehicle. The bottom wall of the lamp housing is provided with a lens which allows light from the light source to illuminate the area around the tire. The light source is electrically connected in series to the battery of the vehicle by means of a normally open control switch which closes to activate the light source when the lamp housing moves into its extended position and opens to deactivate the light source when the lamp housing moves into its retracted position.

Abstract: The present invention concerns an electric lantern preferably of the flashlight type. The lantern uses batteries for a power source, and a switch for selectively activating the lantern. The lantern also has an optical system which includes a bulb and reflector for directing the light in a relatively narrow beam of light. A motor contained in the lantern is used to bring about oscillating movement of the bulb and reflector. This oscillating movement is activated by the switch which can be selectively operated to cause the beam of light to scan a wide, horizontal area. Alternatively, the switch can be activated to power the lamp bulb only-as in a conventional flashlight.

Abstract: A sparger for use in microcarrier fermentation systems is provided which includes a narrow, vertically extending outer chamber defined by a solid wall and a wall formed by a screen, wherein air or other gas is forced under pressure through a tube to the bottom of the chamber and from there to a distribution member for the release of the gas upwardly into the chamber. The top of the chamber is provided with exit openings which communicate to a point above the surface of the medium. In an alternate embodiment, gas is released at the bottom of an inner chamber defined by a wall formed with a plurality of screened windows.

Abstract: A radio-controlled TV or movie studio spotlight or general purpose illumination instrument; two joy sticks, one for the pan or tilt, the other one for the dim or iris adjustments and settings, respectively, are installed on a panel of a 4-channel radio transmitter accessible for manual actuation to provide the respective commands for a four-channel radio receiver and thereby for the remote control of the lighting equipment functions.

Abstract: A mechanism and an electrical circuit are provided which control an up/down position and a tilt angle of a headlamp on a vehicle. The headlamp is supported by a drive mechanism which includes an electric motor as a drive source. The drive mechanism drives the headlamp to its up or down position, and also controls the tilt angle thereof. In one embodiment, an angle of rotation sensor having improved configurations and disposition of conductor electrodes and contactors is coupled to the sensor. An angle of inclination sensor is mounted on the vehicle. The headlamp is driven in accordance with the outputs from the both sensors so that it illuminates a given point forward of the vehicle. Time limit means is provided, and interrupts the energization of the motor after a given time duration. Retract switch may be operated to drive the headlamp to its up or down position. During such movement, the motor is energized at a high level while it is energized at a low level when controlling the tilt angle.

Abstract: An operating theatre lamp which transmits a directed beam of light is pivlly arranged about two axes (43, 44), which are substantially perpendicular to one another and to the beam of light (12), above the site of an operation 13. The pivotal movement of the operating theatre lamp is effected by two positioning motors (41, 42). The operating theatre lamp has a light beam selector (11) which cooperates with a control reflector (38) and a control circuit (40) in such a way that the lamp reflector (55) of the operating theatre lamp automatically follows the control reflector during displacement of the control reflector (38) within the site of the operation.

Abstract: The light comprises a cluster of lamp unts (100), pivotally mounted at (6,7), on respective chassis (8) running on a loop track. The lamp units are approximately equidistant from a central axis and illuminate a common patch on the axis. Each chassis (8) is connected to a respective chain (35) which may be driven to move individual chassis (8) along the track, changing the configuration of the cluster. A linkage (26,27,31) enables the lamp unit inclination to be varied and a linkage (12,13,14,16,18 ) enables the relative positions of a bulb (1) and a concave reflector (10) to vary, thereby varying the beam width. The rollers (18) of each unit roll on a surface of a first common hoop and the rollers (31) on a surface of a second common hoop. The hoops are movable enabling the inclination of beamwidth of all the lamp units to be varied simultaneously, changing the patch range or size.

Abstract: A novel portable light beam projector device, related system apparatus, and attendant novel method for wide variety use in conjunction with military vehicles, to establish optimum placement of optical fire detection sensors relative to installation of the vehicle's fire suppression system. These inventions are similarly usable to novelly establish corresponding optimum placement of various optical type intrusion and/or fire-detection sensors to similarly protect various confidential areas including storage facilities and attendant personnel/equipment/data and the like whether of a military, industrial or commercial character.Each light projector device has an adjustable tubular shroud to adjustably focus the light beam cone angle. The desired cone angle of the light beam is initially set by use of associated system apparatus including an associated light beam calibration chart and some optional projector support stands.

Abstract: A portable lighting apparatus having a lamp assembly attached to the top of an elongated mast, preferably formed of interconnectable relatively short sections. The lamp assembly includes at least one electric lamp affixed to a horizontal shaft for rotation about a horizontal axis. Associated with the horizontal shaft are a pair of gears, suitably a vertical rack and a pinion engaged therewith, the pinion being operatively attached to the horizontal shaft. A spring associated with the pinion tends to rotate the gear in a direction which biases the engaged rack downwardly. The lower end of the rack abuts a movable pushrod generally centrally located within the hollow mast and running the length thereof. The lower end of the mast is telescopically mounted on a mast support provided with a fixed vertical stoprod which abuts the lower end of the pushrod.

Abstract: An apparatus containing a headlight gimballed for rotation within the enclosure of the apparatus. The headlight is capable of exposure through an opening in the enclosure, and is capable of directional adjustment in accordance with signals produced at a remote location. A cover is provided for selectively enclosing the opening which exposes the headlight, and is capable of selectively enclosing or exposing the opening in accordance with signals produced at a remote location.

Abstract: A kinematic lamp mount for mounting a spectral source lamp (3) such as a hollow cathode lamp accurately with respect to an optical axis of, for example an atomic absorption spectrophotometer comprises a base member (100), a lamp holder (1) and two spring means (120, 121) which urge the holder (1) into contact with the base member (100). The holder (1) is provided with three ball ended feet (6,8,10) two of which (6,8) are adjustable. Two feet (6 and 10) engage in an arcuate V-groove (102) while the third engages in a radial V-groove (103) giving kinematic connection between the holder (1) and base member (100).By providing kinematic connection between the holder (1) and base member (100) the lamp holder (1) and hence the lamp (3) may be removed from and later replaced sufficiently accurately on the base member (100) that no re-adjustment is necessary.

Abstract: An improved lighting system for growing plants indoors, the lighting system comprising a means for continuously moving a high intensity light over the plants in a cyclic manner simulating daily exposure to the sun in a natural environment.

Abstract: A retractable headlamp assembly for automobiles in which a headlamp, pivotally mounted on the automobile frame, is operatively coupled to the rotatable shaft of a motor by a link mechanism. The motor, operating through the link mechanism, is energizable to cause the headlamp to be moved angularly between a first position at which the headlamp projects out of the front hood of the automobile, and a second position at which the headlamp is retracted within the front hood. An adjustable stop is provided to stop the headlamp at the first position, which adjustable stop is adjusted to bring the first position into conformity with an angularly displaced position of the rotatable motor shaft, which is displaced through a slip angle from a normal stopping position. Such an arrangement assures that the headlamp can be stopped at a fixed position at all times for emitting a correctly directed beam of light irrespective of the varying positions at which the motor can stop.

Abstract: A retractable head lamp structure for automobiles in which a head lamp assembly is mounted on the automobile body for pivotable movement about a pivot axis between an extended position and a retracted position. In the retracted position, the lens surface of the head lamp assembly is located along the body surface. The pivot axis is inclined downwardly and rearwardly with respect to a horizontal transverse line as seen in transverse outward direction of the body so that the lens surface is substantially flush with the body surface in the retracted position.

Abstract: A lighting system (10) is disclosed which includes a control panel (12) for operating a plurality of lights (14) by means of a single two conductor signal cable (18) and a power cable (20). Two embodiments (30, 110) of lights (14) are provided for use in the present lighting system. In the first embodiment, the light (30) includes four dichroic filters (58-64) mounted for pivotal motion on axes passing through the light path formed by light emanating from a lamp (50). The dichroic filters may be aligned with the light path, thereby eliminating the effect of the filters. The dichroic filters may be singly or in combination pivoted so that the light in the light path is incident on the dichroic filter at a predetermined angle to transmit a preselected color therethrough. Four primary color dichroic filters are employed. An integrating lens (100) is provided for homogenizing the color of the light.

Abstract: A height adjustable suspension for supporting a fixture frame from an overhead location has a drive shaft rotatably supported in the frame and extending parallel to the length dimension of the frame, a motor supported in the frame and operatively connected with the shaft for rotating the same, a plurality of longitudinally spaced winding drums mounted on the shaft for rotation therewith and separate suspension cables associated with each winding drum. Each cable is mounted on the overhead location and has an end directly affixed to the respective drum. The course of each cable from the overhead location to the respective winding drum is, at all points of the cable, perpendicular to the length dimension of the frame.

Abstract: A drive mechanism for revolving the turret of a searchlight assembly. The turret is rotated in an oscillating manner over an arc of less than 360.degree.. It is particularly characterized by smooth reversal allowing the driving of a high inertia turret without rapid motor overload and failure as characterized by other prior art methods of driving such mechanisms. A partial cylindrical track is concentrically disposed about the axis of rotation and attached to the turret. In the preferred embodiment, a link chain is welded along the bottom of the track, being folded back on the ends in a tear-drop shape. A drive sprocket on a swing arm is held into engagement with the chain and driven by a constant speed motor. The sprocket alternately drives along the inside of the chain and the outside of the chain smoothly traversing between the positions around the tear-drop ends to cause a smooth deceleration and acceleration.

Abstract: Vehicle headlights that rotate in accordance with movement of the vehicle's steering system are disclosed. The rotatable lights are portable and suited for attachment on a variety of vehicles. The lights are rotated by means of small DC motors wired to a mechanical linkage mounted on the vehicle's steering column. The amount of rotation is determined by potentiometers mounted on the mechanical linkage and the DC motors. A logic circuit is also disclosed for use in conjunction with the device to enable each unit to be readily used on vehicles having different steering ratios.

Abstract: This specification discloses a motor vehicle flashing lamp and headlamp fixture to be attached to a motor vehicle body. The fixture provides a pivotable mouunting so that the flashing lamp and the headlamp can be aligned with respect to each other as well as the automobile body while maintaining a simple and relatively secure mounting. The mounting of the flashing lamps and headlamps in a body aperture of the motor vehicle includes a headlamp braced by an upper swivel providing an upper swivel point for the headlamp relative to the flashing lamp. An outer lateral lower adjusting device, movable forward and backward for the illumination range adjustment, is attached through a bracket to the flashing lamp or the body. An inner lateral upper adjusting device, which is movable forward and backward for the illumination direction adjustment, is attached to the body.

Abstract: A beam-tilting device for headlights of a motor vehicle in which pneumatic modulators respond to the degree of chassis loading, i.e. to the degree of vehicle spring compression and admit pressurized air or vacuum to one or the other side of a differential pressure servo mechanism which tilts the headlights in proportion to the differential load. In order to prevent unnecessary operation of the tilting mechanism during daylight operation of the vehicle, there is provided a monitor shutoff valve which is energized by the headlight switch and which blocks the supply of air to the modulators when the headlights are inoperative, thereby reducing wear and noise.

Abstract: The invention relates to a device for the joint control of the inclination of the headlights of an automobile, of the type comprising an electric motor-reduction gear mechanically coupled to each headlight to adjust the inclination thereof, each motor-reduction gear being of the type comprising, in series in its electrical supply circuit, an electrical switch actuated generator that the motor-reduction gear makes a predetermined rotation, and comprising a time base possessing at least one output and capable of supplying in controlled manner on said output a series of electrical pulses at intervals of time at least equal to the time necessary for the motor-reduction gears to make said predetermined rotation.