摘要:
A method and apparatus for arresting structural termite infestation while eliminating the risk of poison exposure to occupants of the structure includes a power tool for drilling holes in wood members of a structure, implanting pellets of termite poison within the drilled holes, and sealing the holes. The tool includes a tubular body portion joined to a storage portion that stores a plurality of packages of pellets of termite poison. A platen assembly is secured to the storage portion and adapted to impinge on a wood member of a structure. The tubular body encloses a reversible drive motor connected through a gear train to rotate and translate the drill assembly reciprocally in a guideway. Cellulose balls impregnated with poison or insecticide or flagellacidal agents are grouped in loads, each load packaged and disposed in the tool parallel to the guideway, with a plug cork is disposed at the proximal end of each load. The method of the invention includes forming a hole in a wood member, placing pellets containing insect killing agents within the hole and sealing the hole so that no poison can escape. The insect killing agents remain latent and enclosed within the wood member, so that occupants of the structure are protected from any toxic contact and only insect infestation can gain access to it. The method of the invention also includes prepackaging termite killing agents as a load or charge comprising a plurality of pellets in axial alignment with a plug cork disposed at the proximal end of the charge. The method also includes dimensioning the pellets and plug cork with respect to a drilled hole so that the pellets are implantable in the drilled hole and the plug cork seals the drilled hole to retain any toxic substances for long-term protection from termite-caused damage.
摘要:
A mechanism for receiving elongated articles such as dowel pins, etc., from a bulk source is disclosed which separates the pins and positions them for ejection and insertion by a ram driven driver tool. The mechanism includes a rotary feed cylinder having a plurality of pin receiving chambers extending in directions tending to converge and arranged circumferentially about the feed cylinder axis. The feed cylinder is adapted to receive pins into each chamber via an inlet from the bulk source, while upon rotation about its axis the feed cylinder repositions the pins to be horizontal in the ejection position so to be able to be advanced out of the chamber by means of the driver tool. Rotation and positioning of the feed cylinder is produced by a unique indexing arrangement operated by the driver tool ram, including a ratchet wheel drivingly connected to rotate with the feed cylinder. The ratchet wheel is engaged by an indexing pawl which is in turn oscillated to a cocked position by the driver tool ram and adapted to incrementally advance the ratchet wheel with each stroke of the mechanism upon withdrawal of the driver tool after ejection of an article from a chamber.
摘要:
A method of securing metal mountings to wooden members with rivets is disclosed. The wooden members are drilled to a slightly smaller diameter than the rivets. The rivets are inserted through the holes at the conclusion of the drilling operation, and are frictionally held in place by the wooden member. The metal mountings are then mounted on the member and the assembly is passed to a rivet upsetting station. The rivets are softened by electrical current as the upsetting pressure is applied. The specification discloses several configurations of electrodes that provide simultaneous heating and pressure. After upsetting, the rivets are sprayed with a colored powder or protective coating. The heat retained in the upset rivet is used to melt the powder and spread the coating.
摘要:
An automatic pin-setting machine including a plurality of air cylinder operated plungers, a track for individually feeding grill bar retaining pins to the plungers and means reciprocally affixed to the air cylinders to individually drive the pins into the periphery of a wooden sash member in spaced relationship to receive and retain a decorative window grill.