摘要:
An improved garage door lock mechanism includes a housing, a crank, a slider, a catch and a single, multipurpose biasing member. The elements are adapted such that the biasing member both biases the slider from a locking position and biases the catch to catch the slider when the slider is in the locking position.
摘要:
Aluminum pellets are ejected from the nozzle of an elongated tube into a stream of liquid steel flowing from a tundish into a continuous casting mold. Protective gas is utilized to propel the pellets of aluminum from the elongated tube into the molten stream. A special nozzle structure for the elongated tube insures that the aluminum pellets will properly impinge upon and mix with the molten stream. The elongated tube is retained within a larger cylindrical tube that directs low velocity, protective gas at the molten stream. The protective gas, such as nitrogen or argon, provides essentially nonreactive atmosphere that envelops the molten stream of steel.
摘要:
An improved concrete anchor consists of an expansion nut in the form of a cylindrical coil of a resilient material and a bolt provided with a thread adapted to receive the coil. The thread of the bolt has two sections of different effective minor diameters. A first section immediately adjacent the threaded end of the bolt has a minor diameter sufficiently small to permit the bolt to enter the coil without causing any distortion or enlargement in the outer diameter of the coil. Adjacent the first threaded section and extending toward the head of the bolt is a second section having a larger minor diameter which causes expansion of the coil on engagement therewith. The end of the coil facing away from the head of the bolt is provided with a short, straight tab portion which extends in a direction generally away from the head of the bolt while tapering inwardly toward the axis thereof. The opposite end of the coil is provided with locking means for engaging the wall of the hole in which the anchor assembly is used in order to inhibit rotation of the coil.
摘要:
An improved shelf bracket assembly has identical bracket members. Each bracket member is L-shaped and has a mounting portion forming one leg of the L and a flange portion forming the other portion. The mounting portion has a central raised section with an opening for receipt of a flange portion of the other bracket member. Each flange also includes a dimple and a cantilever finger. The dimple cooperates with the central raised section to maintain the bracket members in an intermediate prelocked condition. The cantilever finger cooperates with the central raised section to maintain the bracket members in a final locked condition.
摘要:
Nails are manufactured using a sequence of steps including hot galvanizing of the nails with a zinc/tin/flux composition followed by vinyl coating to provide fasteners which resist corrosion that may result from chemically treated wood and cement infused materials.
摘要:
A lock for a motorcycle saddle bag container includes a key operated plug attached to a lock housing mounted on the inside wall of the container. The plug operates a pivotal and transversely movable shutter. The shutter, in turn, cooperates with a strike attached to the inside of the lid for the container. A rubber seal maintains the shutter and strike in a locked position until the lid is manually depressed to compress the seal and release the shutter from the strike.
摘要:
A perforated board display bracket assembly is adapted for mounting on a perforated board. The perforated board openings receive a hanger member comprised of a flexible U-shaped rod having generally parallel spaced legs connected by a crown. The legs are retained against the back side of a display panel by a locking bar which engages the legs and biases the legs toward the panel. The display panel may slide on the legs between a locked and unlocked position. When in the locked position, the hanger member is in a detent. Manual flexing of the legs releases the hanger member from the detent and permits sliding of the display panel on the hanger member for ultimate removal from the perforated board.
摘要:
Hardware for a reversible kitchen cabinet shelf includes upper and lower molded or stamped plates which are attached respectively to the upper and lower panels of a cabinet. The plates include an arcuate track and a transverse guide slot which is generally perpendicular to the front edge of the cabinet. Followers attached to the top and bottom of a shelf unit for the cabinet cooperate with the arcuate track and slot whereby the shelf construction may be pivoted and reversed with respect to the cabinet enclosure.