摘要:
Device for cutting yarn which comprises a drum having a plurality of narrow grooves in the outer surface, means for holding the yarn in place on the outer surface of the drum and base support means for holding the drum.
摘要:
A latch hook having a shaft with a blunted forward tip and opposed front and rear hooks. A latch pin is pivoted on the shaft and movable between engagement with the hook ends to selectively close one of the hooks, and a stop is mounted on the shaft rearwardly of the hooks to receive string carried thereover.
摘要:
A stretch and roll frame, adapted to be used for supporting a rollable workpiece such as canvas needlework and the like thereon, comprises a first elongated frame member, a second elongated frame member, a first side frame member, and a second side frame member. The first and second elongated frame members each have attaching means provided thereon intermediate the ends thereof for detachably fastening one of the pairs of sides of a workpiece thereto. In addition, each of the first and second elongated frame members has notches formed adjacent its ends. The first and second side frame members each include adjustment means for varying the relative lengths thereof. Further, each of the ends of the first and second side frame members has a slot formed therein, which is adapted to co-operate with one of the notches formed adjacent the ends of the first and second elongated frame members for purposes of assembling the first and second side frame members to the first and second elongated frame members whereby to provide, when the first and second side frame members are so assembled to the first and second elongated frame members, a frame capable of supporting a workpiece thereon.
摘要:
A manual process is described for producing a fabric wherein a plurality of parallel warp threads are arrayed on a cardboard thread frame. Multicolored surface yarns are associated with respective ones of said warp threads. The fabric is produced by pulling one of the end surface yarns across the warp threads and successively knotting each of the remaining surface yarns with the end yarn where the end yarn intercepts the warp threads. The knots are formed by bringing the surface yarn over the end yarn, underneath the end yarn and warp thread, and back over the end yarn toward where the next row will be formed. After each row is formed, either of the end surface yarns may be used as the common yarn for the next row. The pattern of the fabric is determined by this selection of end surface yarns.
WHEREIN R1 AND R2 SIGNIFY RESPECTIVELY A HYDROGEN ATOM OR A LOWER ALKYL GROUP; R3 AND R4 SIGNIFY RESPECTIVELY A HYDROGEN ATOM, A HALOGEN ATOM, A NITRO GROUP, A LOWER ALKYL GROUP OR A HLAOGENATED LOWER ALKYL GROUP; AND N SIGNIFIES 1, 2 OR 3, AND BEING EFFECTIVE AS TRANQUILLIZERS, MUSCLE-RELAXANTS AND HYPNOTICS, ARE PRODUCED BY REACTING WITH AN OXIDIZING AGENT A 2-AMINOMETHYL INDOLE DERIVATIVE, OR A SALT THEREOF, REPRESENTED BY THE FORMULA