Abstract: A safety device for an aerial lift (10) having a basket (20) with controls (23) which permit an operator to manoeuvre the basket (20), and a foot operable safety switch (24) which activates the controls (23), the safety device comprising an auxiliary safety switch (24) operated by a trip cord (27) arranged proximate to the controls (23) and which is connected in series with the foot safety switch (24) so that in the event that the cord is distorted the auxiliary switch (26) prevents activation of the control panel (23) and may additionally operate an alarm.

Abstract: A panel carrier assembly (30) for use with an aerial lift (10) and comprising a pair of spaced apart planar lattice frames (31,32), preferably rectangular, secured together in alignment one with the other by spacers (34) arranged around sides of the frame leaving one side free of obstructions to facilitate the insertion of sheets or panels P of material between the two frames (31,32), one of said frames (31) having bracket assemblies (48,49) thereon for securing to a lift.

Abstract: An aerial lift (10) having a platform (12) surrounded by a kick plate (14) adjacent the platform with a pair of spaced apart cross members (22) supported on the kick plate and extending transversely of the platform, each cross member (22) being secured to the kick plate (14) by engaging with the kick plate on opposite sides of the platform (12) and having an upwardly projecting stop (26) at each end thereof for sideways location of material(s) D supported on the cross members (22).

Abstract: A safety device for an aerial lift (10) having a basket (20) with controls (23) which permit an operator to manoeuvre the basket (20), and a foot operable safety switch (24) which activates the controls (23), the safety device comprising an auxiliary safety switch (24) operated by a trip cord (27) arranged proximate to the controls (23) and which is connected in series with the foot safety switch (24) so that in the event that the cord is distorted the auxiliary switch (26) prevents activation of the control panel (23) and may additionally operate an alarm.

Abstract: A magnetic induction heater uses a stationary target which is electrically conductive. A plurality of stationary magnets with fixed poles are positioned near the target to induce at least a first and a second magnetic field in the target, where the first and second magnetic fields are different. A shuttering device alternately blocks or allows the magnetic fields from the magnets to reach the target. The shuttering device is activated to alternately allow and block the first and second magnetic fields from the target, such that the target is exposed to varying magnetic fields to produce heat.

Abstract: An aerial lift (10) having a basket or cage (20) having a control panel (23) for an operator standing in the basket to manoeuvre the basket to a desired location, a safety switch means (18,24,25) operable to prevent further movement of the basket in unsafe conditions, and a safety device comprising a load cell 56 or strain gauge on the cage (20) and an auxiliary safety switch (59) operatively connected to the load cell (56) via an amplifier (58) is connected in series with the safety switch means (18,24,28), the auxiliary switch (59) being operable to cut off power to the safety switch means (18,24,25) when the sensed load on the cage exceeds a predetermined value, typically if the load strikes a stationary object.

Abstract: A material support assembly (21) for use on an aerial lift work platform (12) surrounded by a safety barrier (17) with a kick plate (14) adjacent the platform (12), the assembly (21) having at least one leg (22 or 23) mounted on a foot (24) which rests on the platform (12), the leg and foot having a first coupling means (31) for securing the assembly (21) to the kick plate(14) on one side of the platform and a further coupling means (32) for engaging the kick plate (14) on the opposite side of the platform, the further coupling means (32) preferably being located at the end of an arm (25) extending away from the foot (24) and resting against the platform.

Abstract: A storage rack (20) for use on an aerial lift (10) having a work platform (12) surrounded by a safety barrier(17)with a kick plate (14) adjacent the platform (12), the storage rack (20) having at least one leg (21) with a foot (22) which in use rests on the platform (12), the leg (21) 4. A storage rack as claimed in any one of Claims 1 to 3, wherein the leg (21) having at its lower end portion a catch (36) which is engagable with the kick plate (14) to hold the foot (22) adjacent the kick plate.

Abstract: A safety device for an aerial lift (10) having a basket (20) with controls (23) which permit an operator to manoeuvre the basket (20), and a foot operable safety switch (24) which activates the controls (23), the safety device comprising an auxiliary safety switch (24) operated by a trip cord (27) arranged proximate to the controls (23) and which is connected in series with the foot safety switch (24) so that in the event that the cord is distorted the auxiliary switch (26) prevents activation of the control panel (23) and may additionally operate an alarm.

Abstract: A material handling apparatus (30) to be used in combination with an aerial lift (10) having a work platform (12) surrounded by a safety barrier (17), comprises a jack (32) secured on the platform (12), the jack having a ram (34) with a hoist (31) mounted, preferably rotatably mounted, on the upper end of the ram. The hoist (31) has an upright first arm (45) attached to the ram, a second arm (48) pivoted to the first arm (45), actuator means (53) operable between the first and second arms, and a winch (55) with its cable (67) suspended from the end of the second arm.

Abstract: An ergonomic putty knife and scraper handle manufactured from at least two different hardness injection molded polymers having a plurality of harder longitudinal ribs embedded in a softer overlay but exposed on both top and bottom surfaces in strategic locations. The longitudinal ribs providing non-binding contact with fabric surfaces to ease the insertion and removal of the handle into and from a user's pocket for temporary storage of the tool when not in use. When employing the tool for its intended purpose, however, the user enjoys the comfort, efficiency and safety of an ergonomic handle offering a "soft touch" to thumb and fingers in those locations requiring superior grippability.

Abstract: An implementation of an ISDN router enables computers interconnected to each other and to the ISDN to share resources by issuing operating system commands. One computer can access a storage disk or other resource of another computer distributed at any terminal location on the ISDN. Each disk on the Network has a unique name by which it is accessed. The configuration of the Network and number of computers distributed on it are transparent to each user. To improve bandwidth utilization of the ISDN line while sharing terminal resources, a B-channel allocation algorithm executed by routers between the terminals and the ISDN line dynamically allocates bandwidth by monitoring traffic at each destination queue and in response allocating or deallocating virtual B-channels. Bandwidth utilization is optimized by packaging data packets into trains that are transmitted to the destination when the train is completed and upon satisfaction of other conditions.

Abstract: An ISDN gateway (GW, 100) dynamically allocates bandwidth by monitoring traffic at each destination queue and in response allocating or deallocating virtual B-channels. A long term allocation (LTA) algorithm is executed during usual traffic conditions to determine when, and for how long, virtual B-channels are to be allocated. During transient conditions, the gateway (GW, 100) executes a short term allocation (STA) algorithm. Bandwidth utilization is optimized by packaging data packets into trains that are transmitted to the destination when the train is completed and upon satisfaction of other conditions. Each train undergoes data compression by execution of a suitable compression algorithm.

Abstract: An ISDN gateway (GW) for personal computers (H) comprises at least one circuit board resident in each computer for carrying out protocol conversion and other network interface functions. To improve bandwidth of the ISDN line while transferring voice or data, a B-channel allocation algorithm executed by the gateway (GW) and the ISDN line dynamically allocates bandwidth by monitoring traffic at each destination queue and responsively allocating or deallocating virtual B-channels. Bandwidth utilization is optimized by packaging data packets into trains that are transmitted to the destination when the train is completed and upon satisfaction of other conditions. Each train undergoes data compression by execution of suitable compression algorithm.

Abstract: An ISDN gateway for local area networks comprises at least one circuit board resident at each network for carrying out protocol conversion and other network interface functions. Two embodiments of the gateway provide bridger and router gateway services, respectively. To improve bandwidth utilization of the ISDN line while transferring voice or data, a B-channel allocation algorithm executed by the gateway and the ISDN line dynamically allocates bandwidth by monitoring traffic at each destination queue and responsively allocating or deallocating virtual B-channels. Bandwidth utilization is optimized by packaging data packets into trains that are transmitted to the destination when the train is completed and upon satisfaction of other conditions. Each train undergoes data compression by execution of a suitable compression algorithm.