A toothed belt having an endless rubber band formed with projecting tooth portions, the rubber band having tension members buried in parallel therein. A cloth cover is fastened to the toothed surface of the band. The cloth is formed of woven fibers, and one of the warp and woof fibers of the cloth has a high-adhesive characteristic, and has a greater exposed surface area on one side of the cloth, which side is fastened to the toothed surface. The other of the warp and woof is formed of a fiber h...

A transfer apparatus comprising an object-suspending rod, upper and lower support rods whose one ends are pivotally connected to the object-suspending rod, and a connecting rod pivotally connecting the other ends of the support rods. The object-suspending rod, the connecting rod and the upper and lower support rods are disposed in parallel to constitute two pairs of opposite sides of a parallelogram link mechanism. An object hanger is attached to the lower end of the object-suspending rod. The o...

A trolley conveyor comprising a hollow guide rail within which an endless conveyor chain is centrally supported by guide rollers. A plurality of spaced U-shaped hangers supported by said chain extend through a longitudinal opening in one side of the guide rail spaced above the bottom of the rail. The lower side of the guide rail below the opening is inclined outwardly and serves to contain foreign matter present within the guide rail as well as to catch matter falling from above. The hangers eac...

Conveyor load transfer apparatus, including a follow-up carriage movable in the direction in which a conveyor moves and driven by a double-acting cylinder. A transverse carriage is supported on the follow-up carriage and is movable perpendicular to the running direction of the conveyor, being driven back and forth by a transverse motor mounted on the follow-up carriage. An article-handling segment, driven up and down by an elevation drive source, is mounted on the transverse carriage. A follow-u...

A multi-application speed drop detector, for a high-speed bucket belt conveyor conveying powdery substances, that can automatically perform such functions as alarming, causing ordinary and emergency stops in accordance with the amount of speed drop of the belt conveyor from a set speed level, and eliminating the effect of an increased bucket pitch at a joint in the belt. A bucket passage detection signal produced by an electromagnetic induction sensor is used in order to avoid the ignition and e...

A chain link plate including a pair of enlarged end parts joined by an intermediate constricted part. Each end part has an opening therethrough. The link plate is symmetrical about a first axis which extends longitudinally of the link plate and passes through the centers of the openings. The link plate is also symmetrical about a second axis which extends perpendicular to the first axis and perpendicular to the axes of the openings. Each end part has a convex curved exterior edge surface generat...

A rotating pressure applying apparatus for clamping and pressing a plurality of workpieces. The apparatus includes a rotatable apparatus having a plurality of viselike clamping devices mounted thereon and spaced circumferentially around the rotational axis thereof. Each clamping device is moved into a clamping position by a suitable power device, such as a fluid pressure cylinder. A control structure, such as a cam and switch arrangement, coacts with the rotatable apparatus for causing automatic...

A follow-up control device comprising a pneumatic cylinder connected in series or parallel with a hydraulic cylinder for controlling the movement of a load device relative to a further device, such as for transferring an article or commodity from a load device onto the hanger of a movable conveyor. The pneumatic cylinder functions as the power source for moving the load device, and the hydraulic cylinder functions as a speed control for controlling the speed of movement of the load device. The h...

An automatic warehousing and loading-and-unloading apparatus for loading a group of pallet units arranged in a row, and each comprising fixed box-shaped objects mounted on a pallet, onto the feeding end of a number of parallel-disposed warehousing conveyors for storing in a warehouse. Each pallet group is loaded, as required, by loading means onto another conveyor for transferring to a shipping yard where two groups are combined and loaded onto a truck.

A position detecting and maintaining apparatus for use between a movable article and a movable base member. Track means are provided and extend parallel to the direction of movement of the movable article and guide means are provided for guiding the base member along the track means. A shaft is rotatably supported on the base member and has a lever fixed thereto and rotatable therewith and adapted to engage the article to effect a rotation of the shaft means upon a relative movement between the ...