Abstract: A sprocket device with an oil lubrication comprises: a stationary drum provided with a flange portion and a bearing portion at its side surface; a sprocket provided with tooth portions and thin holes which is provided at opposite sides of the tooth portions and spaced apart from each other and reaching an inner peripheral surface of the sprocket, which sprocket being closely and rotatably mounted on the stationary drum; a gear pump having a pair of gears which are meshed with each other and mounted in the one side surface of said stationary drum, the gear pump being provided with an oil-discharge hole which is formed in the one side surface of the stationary drum and communicated with an oil channel which opens to an outer peripheral surface of the stationary drum, the oil channel being connected with an oil groove axially extending from an opening portion of the oil channel; and a rotary shaft rotatably inserted into the sprocket and stationary drum, and integrally connected with said one of said gears of sa

Abstract: A roller chain in which the pins are provided with at least one longitudinal groove oriented toward the bushing seams to improve the lubrication of the pin-bushing interface.

Abstract: A lubricating system for a transmission of the kind having a driving shaft driven to rotate, a transmission shaft disposed parallel to the driving shaft, a chain for transmitting power from the driving shaft to the transmission shaft and a chain case enclosing the chain, the lubricating system comprising a chain chamber and an oil reservoir chamber in the chain case, the oil reservoir chamber having an upper inlet port for receiving oil from the chain chamber, at least some of the oil in the chain chamber being driven to reach the inlet port by movement of the chain, and the oil reservoir chamber having a lower outlet port for returning oil to the chain chamber, whereby oil flowing through the oil reservoir chamber may be cooled and the amount of oil in the chain chamber subject to agitation by the chain movement at any one time may be reduced, substantially prolonging the operational life of the lubricating oil.

Abstract: A tenter chain has been provided wherein a lubricating apparatus includes means for preventing the accumulation of old grease with the introduction of same on a subsequent lubricating operation as a result of the insertion of the elongated nozzle of a grease dispensing gun into a passageway leading to a grease receiving reservoir.

Abstract: The invention relates to a continuously operating press for pressing an advancing web of material, with an upper and a lower endless press band, each guided over a pair of deflection rollers and comprised of several interlocking band layers, and with a press zone for the web of material located between the lower strand of the upper and the upper strand of the lower press band. In order to prevent destruction of the surfaces of the band layers and mutual "seizure", provision is made for the band layers forming a press band to be lubricated on their mutually contiguous surfaces.

Abstract: The multiple sheave mechanism is primarily intended for use on the outer end of a long boom of a crane. The mechanism includes a plurality of sheaves that have hubs supported for rotation on a shaft by anti-friction bearings. Each of the hubs have a cylindrical inner flange on one side and a cylindrical outer flange on the other side, and the hubs are axially spaced from each other with the outer flanges overlapping the inner flanges. The outer flange on one end sheave overlaps an annular retainer, and a second retainer overlaps the inner flange on the other end sheave. The cooperating flanges and retainers define circuitous passages which are filled with lubricant for providing a mechanical seal and a fluid seal which minimizes entry of dirt, dust and other debris into the bearings and maximizes the interval between required relubrication.

Abstract: A hydraulic chain tensioner with a hollow piston longitudinally guided in a hydraulic housing which is closed off at the top by a plug provided with an external thread; the plug is pressed into a smooth central bore of the hollow piston and the thread grooves are in communication with the atmospheric air by way of radial channels of the hollow piston, thus permitting a venting of the hydraulic housing; a further venting possibility exists by an excess pressure valve which is built into an ante-chamber disposed parallel to the hollow piston.

Abstract: Apparatus for mixing particulate material in the bed of a truck having a mixing chamber, a plurality of augers rotatably disposed within the chamber, and a plurality of sprockets and chains for driving the augers from power takeoff from the truck. A lower oil tank is attached to a housing that houses the sprockets and chains. The oil tank contains oil. The method comprises utilizing one of the chains to transport some of the oil from the oil tank for self-oiling of the sprockets and the remaining chains.

Abstract: Track roller for track-laying vehicles such as excavators having a shaft, a roller body rotatably supported thereon, two caps for limiting relative axial movement of shaft and roller body, and end pieces for attaching the track roller to the frame. The shaft has at its center a relatively large diameter, laterally thereof, spaced axially from each other, two relatively wide cylindrical bearing surfaces of larger diameter and, on its sides, ends of reduced diameter with elastic packings at suitable places between the end pieces and the caps and between the caps and the roller body, and an antifriction metal washer arranged between shaft and caps for the feeding of oil to those packings requiring lubrication which is effected from the oil space arranged between the bearing surfaces of the shaft and serves as an oil reservoir.

Abstract: A chain saw guide blade includes a pair of side plates between which an axle is fixedly supported and a sprocket is rotatably supported with respect to the axle. The sprocket is rotatable about the axle with roller bearings therebetween for guiding a cutter chain for movement around the edge of the guide blade. A pair of annular seals are respectively disposed between the sprocket and one of the side plates and between the sprocket and the other side plate. Each of the seals includes an annular lip projecting obliquely into resilient contact with a surface of the sprocket or of one of the side plates. A grease-supply aperture in each side plate is normally closed off by a flap on the annular seal or resilient valve placed in a central hole of the axle. When under the pressure of forced grease through the aperture, the flap or valve is resiliently yieldable to allow the grease to be introduced for the lubrication of the roller bearings.

Abstract: A sleeve member of elastomeric material is mounted on one of the driving and driven pulleys between which the type-carrier is passed. The sleeve member is wetted with a lubricant liquid so that a friction occurring between the type-carrier and the platen is minimized.

Abstract: The chain lubricating system of this invention includes an oil reservoir and a partially submerged sprocket wheel. The sprocket wheel is loosely carried on a stationary axle mounted within the reservoir to permit both rotation and lateral slidable movement thereon. The teeth of the sprocket are characterized to urge oil into the links and rollers of the drive chain as it is moved over the rotating sprocket.