Abstract: An elongate, plastic housing has formed on the upper surface thereof two, spaced, parallel, longitudinally extending grooves the first of which has slidably positioned therein an elongate, metal, tackless carpet securing strip the opposed side edges of which extend slidably beneath elongate flanges that project from opposite sides of the first groove. Nails or the like are employed to secure the strips and the underlying portion of the housing to a floor, with the second groove facing upwardly to accommodate and secure therein the integral rib section of a conventional threshold insert. In a second embodiment a third groove is formed on the surface of the housing slidably to accommodate a second tackless carpet securing strip adjacent the side of the second groove remote from the first groove.

Abstract: A plurality of blade supporting blocks are secured on the face of a base plate, which has a flange along one side thereof adjustably secured by bolts to one leg of a right angular support plate, the other leg of which extends beneath and in spaced parallel relation to the base plate. Adjustably mounted in each of one or more recesses in each block is a cutting blade, the lower cutting end of which extends through one of a plurality of spaced slots in the base plate. In use, the support plate supports the base plate above the carpet that is to be cut, and with a plurality of cutting blades extending beneath the base plate.

Abstract: A heavy, roller-mounted base plate has thereon a conventional pile carpet trimmer having a shearing head disposed to be swung into and out of a pile access opening in the base plate either to trim the pile of a carpet by sliding the plate on top of the pile, or to bevel the carpet edge by sliding the plate beneath and along one edge of the carpet. Attached to the plate adjacent opposite ends of its pile access opening are two, linearly aligned guide members, which slidably engage a carpet edge during a beveling operation. A retention bracket projects from one of the guide members to overlie the pile surface to prevent any bunching or folding of the carpet edge during the edge-beveling operation.

Abstract: A pneumatically operated pile carpet trimmer includes a housing having a drive shaft projecting from one end thereof, and a shearing head removably threaded on the last-named end to surround the projecting end of the shaft. An operating lever which is pivotally mounted in the head is connected at one end to the movable shearing member of a set of shears which is removably mounted on the bottom of the head, and the opposite end of the lever is releasably connected to an eccentric carried by the drive shaft. When the latter rotates it oscillates the lever, which therefore reciprocates the movable shearing member. The head may have two sets of shears removably mounted thereon to operate in intersecting planes. In each case exhaust air from the housing is directed onto the shears to blow away cuttings.

Abstract: A plurality of special metal clips is used to secure a wooden, carpet securing strip to a floor, and to retain a conventional threshold insert over the strip and the edge of any carpeting that is secured to the strip. Each clip has an upright, generally U-shaped section which extends along one side of the wooden strip (the side remote from the carpet), and which registers longitudinally with the other U-shaped sections of the remaining clips. These registering U-shaped sections of the clips are adapted to accommodate and frictionally to house the mounting rib of a conventional, elongate threshold insert, which is thus fastened by its rib to the clips so as to be held thereby in covering relation with the strip and the adjacent edge of the installed carpet, thereby to prevent accidental tripping over the carpet edge and any consequent damage thereto.

Abstract: The strips are designed to be manufactured from relatively thin or light gauge metal or plastic; each having an elongate base section designed to be secured by nails and/or adhesive to a floor, and having an offset carpet-gripping section which in one embodiment is designed in use to be hammered or bent downwardly relative to the base section and over the edge of a section of carpeting to secure the latter in place, and which in a second embodiment has formed in its longitudinal edge a plurality of spaced teeth which imbed in the bottom of a carpet to hold its edge in place. In the second embodiment a plurality of longitudinally spaced scallops or dimples are formed in the strip to increase its structural rigidity; and in each embodiment adhesive strips are used to help secure the carpeting to the strips.

Abstract: A flexible, permeable seaming tape is treated by saturating one side with a liquid adhesive, which is allowed to dry so that the adhesive becomes inactive or non-tacky, thereby enabling the coated tape to be easily handled, coiled, etc. To seam together two carpet sections a strip of the tape is placed on a surface adhesive-side-up. The undersides of the sections adjacent the edges to be joined are coated with a liquid adhesive similar to that applied to the tape, and while still tacky, are urged downwardly against the tape with their edges in abutting relation. The still-damp adhesive on the carpet dissolves or reactivates the dry adhesive in the tape to form, when dried, a strong cohesive bond between the tape and carpet. The tape may comprise a single layer of non-woven material, or a non-woven material secured to a fiber matrix which resists lateral stretching.

Abstract: A pneumatically operated pile carpet trimmer includes a housing having a drive shaft projecting from one end thereof, and a shearing head removably threaded on the last-named end to surround the projecting end of the shaft. An operating lever which is pivotally mounted in the head is connected at one end to the movable shearing member of a set of shears which is removably mounted on the bottom of the head, and the opposite end of the lever is releasably connected to an eccentric carried by the drive shaft. When the latter rotates it oscillates the lever, which therefore reciprocates the movable shearing member. The head may have two sets of shears removably mounted thereon to operate in intersecting planes. In each case exhaust air from the housing is directed onto the shears to blow away cuttings.