Abstract: Speed limiter for boxes or pallets for use in an a conveyor system having a tilted plane that includes at least one roller. The limiter includes a rotatable drum adapted to be pressed against a load, the load driving the rotatable drum, a speed-sensitive braking mechanism adapted to hinder the rotational movement of the rotatable drum, a shaft mounted coaxial to the drum, the drum and the braking mechanism being mounted about the shaft, and at least one bracket adapted to fixedly mount the shaft to a structure of the conveyor system. The bracket is adapted to elastically press the drum to the load, and has a predetermined degree of rotational movement such that the bracket may pivot about an axis transverse to the movement of the load.
Abstract: The mounting for a roller shaft in the frame of a conveyor is designed to reduce the vibration of the shaft and the sound produced during conveyor operation. In several embodiments, the end of the shaft is provided with a taper, and a spring which is internal to the roller is used to bias the taper into the mounting hole. The resulting tight fit of the taper in the hole greatly reduces the vibration energy of the shaft. In another embodiment, a bushing separates the shaft and the hole and is designed to grip the shaft as it is pressed into place in the hole.
Abstract: A ball deck is disclosed capable of conveying a container having an uneven bottom surface. The ball deck, having an upper surface, houses a plurality of ball transfer units. Each ball transfer unit has a first housing having an upper end terminating adjacent the upper surface of the ball deck. A first load supporting ball, which is preferably hollow, is disposed in an upper section of the housing and has a portion extending above the upper surface of the ball deck. A second load supporting ball, having a lesser diameter than the first ball, supports the first ball. A spring biases the balls axially upward by allowing the first ball to move between an upward position and a downward position when supporting an irregular load surface.
Abstract: A tandem braking system for use in gravity conveyors to control the speed of loaded pallets travelling thereon, especially pallets which have non-continuous support surfaces or support surfaces which are aligned perpendicular to the direction of travel. A brake roller is mounted below the conveyor support plane. Two floating rollers with pliable surfaces are rotatably mounted above the brake roller and rise above the conveyor support plane. Engagement of the tandem brake roller causes downward movement and compression of the floating rollers and causes a braking force to be exerted on the pallet base.
Abstract: A boat trailer having a frame, a wheel and axle unit supporting the frame, a front keel and hull supporting unit mounted on the frame, and a rear cross member, a roller bunk apparatus having a pair of identical roller bunk units each mounted on a side of the longitudinal axis of the trailer; with each roller bunk unit comprising an elongated tubular member disposed parallel an adjacent frame member, and a pair of elongated tubular elements mounted on each member in longitudinal alignment, with the rear element pivotally mounted, and with a plurality of roller units mounted on each element in longitudinal spacing and alignment, and with plate units movably mounted at a rear end of each element for engagement with a trim tab portion of the boat hull.
Abstract: A conveyor ball unit for use in a conveyor track for example for moving freight material comprises a housing accommodating a conveyor ball member supported in a mounting shell member by way of a plurality of mounting balls. The mounting shell member is supported resiliently by spring means. To prevent the mounting shell member with conveyor ball member supported therein tilting in the housing under the effect of a load thereon, upon resilient deflection of the spring, with the result of the conveyor ball member becoming jammed, the conveyor ball member is supported in the mounting shell member only at an annular region thereof and the mounting shell member is itself supported on the spring means in that annular region. The spring means comprises a plurality of plate springs, with the outer periphery thereof being held in concentric relationship in the housing, thereby providing that the conveyor ball member and mounting shell member are self-centering in the housing, to reduce the risk of jamming.
Abstract: Spring-loaded rollers for a mold have an axle mount which passes through the roller into a supporting portion of the seats in the platen to prevent the roller from rotating, twisting or otherwise moving in the set, thereby reducing wear in the roller assemby and in the mold. The roller assembly is easily removed from its seat through the use of a removal device cooperating with screw threads in the roller. A plurality of rollers are used to permit a mold to be easily moved into and out of position in a press. The mold is thus mounted in position since the rollers limit the ability of the mold to move laterally.
Abstract: A boat trailer having a frame, wheel unit, an adjustably mounted winch unit including a keel engaging member, an elongated second keel engaging member pivotally mounted on the frame rearwardly of the winch unit and self-centering to engage a longitudinal length of the keel, a pair of fender units each of which is reversibly mountable on either side of the frame for protecting a wheel, a pair of unitary post load guide brackets slidably engaged with the rear of the frame members and each supporting both a post guide and a rear taillight, a cross member pivotally and longitudinally adjustably mounted at each end to a frame member, and a pair of bunks and a pair of aligned, resiliently mounted roller units interchangeably mounted on said cross member for providing an automatic, full line engagement of either the bunks or the roller units with the bottom of the hull, when loaded, in combination with the second keel engaging member, forming a self-adjusting three point support of the boat hull.
Abstract: A guide arrangement for a conveyor track includes a guide bar portion arranged along at least a part of each side edge of a plate device forming the center part of the conveyor track, each guide bar portion being of an inverted generally L-shaped configuration for engaging over a corresponding edge portion of an article such as a freight container to be conveyed therealong. A plurality of rollers are provided in respective openings in the plate device adjacent the guide bar portions, to support the article above the plate device. Each roller has an enlarged portion at its outward end for guiding the edge of the article to be conveyed, thereby to hold it at a spacing from the respectively associated guide bar portion.
Abstract: Spring-loaded rollers for a mold have a sealed axle mount which passes through the roller into a supporting portion of the seats in the platen to prevent the roller from rotating, twisting or otherwise moving in the seat in the roller assembly and in the mold. The roller assembly is easily removed from its seat through the use of a removal device cooperating with a threaded aperture extending through the roller to the axle. This also permits lubrication to be placed between the roller and the axle. A plurality of rollers are used to permit a mold to be easily moved into and out of position in a press. The mold is thus mounted in position since the rollers limit the ability of the mold to move laterally. The seals are dished TEFLON disks which overfit the axle and interfit either against the sides of the roller or within slots cut circumferentially on either side of the roller. The walls of the slot may be undercut and/or otherwise shaped.
Abstract: Spring-loaded rollers for a mold have a sealed axle mount which passes through the roller into a supporting portion of the seats in the platen to prevent the roller from rotating, twisting or otherwise moving in the seat in the roller assembly and in the mold. The roller assembly is easily removed from its seat through the use of a removal device cooperating with screw threads in the roller. A plurality of rollers are used to permit a mold to be easily moved into and out of position in a press. The mold is thus mounted in position since the rollers limit the ability of the mold to move laterally. The seals are dished TEFLON disks which overfit the axle and interfit either against the sides of the roller or within slots cut circumferentially on either side of the roller. The walls of the slot may be undercut and/or otherwise shaped. The invention makes it very easy to move the heavy molds into and out of the press thereby reducing operator fatigue.
Abstract: A roller conveyor construction has a plurality of longitudinally spaced rollers through each of which extends a shaft journaled at its opposite ends in journal supports which are slideably mounted between a pair of support members for linear movement in a vertical plane only. The journal support for each roller preferably is equipped with yieldable and adjustable suspension means and each roller may include an adjustable, overload clutch drive mechanism.
November 23, 1981
Date of Patent:
May 15, 1984
Prime & Weaver Investment Company
Richard A. Weaver, James H. Niedzielski, John R. Herronen, Joseph M. Wright, Ronald M. Prime
Abstract: A support installation is provided for use with large, cylindrical loads to provide rotational and longitudinal movement therefor. The support includes a plurality of non-driven all-round rolls and at least one driven all-round roll, the principal rotational axes of the non-driven rolls being parallel to the load and the rotational axis of the driven roll being perpendicular thereto. The rolls engage the circumference of the load for rotational and longitudinal movement. A U-shaped bracket fixedly or yieldably supports the rolls.
Abstract: A cargo aircraft conveyor system having palletized loads supported on a plurality of rows of roller conveyors positioned in spaced relation across the aircraft floor, with the roller conveyors being supported on bulkheads. The conveyor system includes load limitors to deform at a predetermined load or hinged spring loaded roller sets supported between pairs of bulkheads to redistribute the load and to transmit a more uniform load to the rollers and to the bulkheads.
April 11, 1977
Date of Patent:
March 28, 1978
The United States of America as represented by the Secretary of the Air Force