摘要:
A clamp housing for cylindrically wound heaters, particularly for an injection molding nozzle heater has a slit that permits changing the effective diameter of the housing and it is actuated by an axially extending cam pin that can be easily adjusted from an exposed end of the heater. The cam pin has a central cam portion formed between two end hubs that are rotatably mounted with respect to one edge of a longitudinal slit in the clamp housing, and a central cam portion that is mounted in a loop formed from the opposite edge of the slit in the housing. As the cam pin is rotated the two edges of the slit in the housing can be forced together because of the cam action and the housing will tighten around a heater held on the interior of the clamp.
摘要:
Anti-vibratory support device for a pipe whose thickness is small relative to its diameter, comprising a collar (2) formed by at least two rigid annular sectors (2a, 2b, 2c) which are articulated at at least one of their ends to the succeeding sector, to pivot about an axis parallel to the axis of the pipe (1). At least two successive sectors (2b, 2c) are interconnected by an elastic junction means (10, 11, 12) which enables the collar (2) to be closed. Parallelepipedic pads (18) made from knitted stainless steel wire disposed in cases (15) are interposed and put under compression between the collar (2) and the pipe (1). The invention is in particular applicable to pipes conveying liquid sodium of the secondary circuit of fast neutron nuclear reactors.
摘要:
The present invention relates to a device for supporting a pipe (1) which has a low thickness in relation to its diameter and which is subjected to considerable variations in temperature and to a radial traction stress of a known direction. It comprises:(a) support cradles (2A, 2B, 2C, 2D) having an internal profile with a curve radius close to that of the pipe;(b) a rigid half-collar (7) arranged around the pipe and separated from its periphery and on which certain of the cradles are fixed;(c) two articulated arms (5A, 5B) on the ends of the half-collar and on which the other cradles are fixed; and(d) a connection device (9A, 9B, 10, 11) formed by two other arms (9A, 9B) which are articulated on the one hand on the above-mentioned arms and on the other hand on pivot pin (10) on which is exerted the radial traction stress applying tightening on the pipe under the force of radial traction (F) applied to the pipe and independently of the expansion of the pipe.
摘要:
An improved hose clamp apparatus for alternatively clamping, tightening and/or release of a hose associated with a collar of an engine, motor, pump or the like, in tightly confined or constricted spaces most accessible primarily from a direction substantially parallel to the hose comprising, a rotatable geared shaft engaging and driving corresponding transverse slots formed in a flexible band surrounding the hose being clamped. When a sufficient axial force component is supplied to the shaft so as to defeat the spring biasing force and disengage a shaft member, rotation thereof is possible so as to alter the circumference of the flexible band and correspondingly loosen or tighten the clamp apparatus about the hose fitted upon the collar.
摘要:
An elongated panel member body is provided including opposite end hooks opening toward remote ends of the body and outwardly of a first longitudinal side edge of the body. A longitudinal midportion of the body includes a transverse first finger receiving bore formed therethrough and the opposite end portions of the other longitudinal edge of the body include thumb engageable abutment surfaces facing outwardly of the body and engageable by the thumb of the user. One end of the body extends endwise outwardly beyond the corresponding hook and has one end of an elongated flexible tension member anchored relative thereto, the other end of the tension member being equipped with a hook member. One of the hooks may be engaged with a first strand of a multistrand fence, the first finger of one hand of the user may be engaged in the transverse bore formed in the body and the other hand of the user may be applied to a second adjacent strand of the fence for deflecting that strand toward the first strand while the first finger of the one hand of the user displaces the body toward the second strand and engages the second strand with the second body hook. If the spacing between adjacent fence strands is too great, the first strand of the fence may be engaged by the free end of the tension member rather than the first mentioned hook.
摘要:
A shoe closure intended particularly for ski boots contains two pull straps adapted to be fastened on corresponding parts of the shoe and a rotatable actuating member with two driving members arranged eccentrically with reference to the axis of rotation of the actuating member. The ends of the pull straps which face each other have only half the width of the remainder of the straps and are located adjacent and alongside each other. Each pull strap has a groove which is open toward the other pull strap, the depth of such groove corresponding to the eccentricity of the driving members, and the driving members engage in the groove so that a largely direct and effective and closing is made possible in a simple manner.
摘要:
A longitudinally divided cable sleeve characterized by a strip-like sleeve member which is composed of a heat-shrinkable material and has two longitudinal edges with reinforcing inserts to form first and second edges with reinforced portions, and coacting closure elements for joining the edges together with the elements on the first edge being bent from strips of material and having a head portion that is received in a slot or opening in the second edge. Preferably, each of the elements bent from a strip of material has a link portion, which is received in a slot of the first edge up to an abutment surface and a projecting closure part which is inserted through the opening of the second edge is provided with a latch element to prevent accidental and unintentional disassembly of the closure elements after the projecting closure part is inserted through the opening of the second edge.
摘要:
Microcapsules having a shell consisting of water-soluble polyvinyl alcohol and containing a liquid, water-in-soluble material are obtained by dispersing a liquid, water-insoluble phase of a substance, substance mixture or substance solution in an aqueous phase of polyvinyl alcohol obtained by partial hydrolysis of polyvinyl acetate and having a degree of hydrolysis of from 72 to 99 mol % and dehydrating the dispersion to obtain the capsules in powder form.
摘要:
A ratchet type telescopic load binder (1) having axially and oppositely moveable first and second threaded screw members (7,8) of different diameters is disclosed. The larger diameter member (7) includes an axial cylindrical void (11) into which the smaller screw member (8) is permitted to move. Greater reach is achieved by providing the smaller member (8) with a screw thread (10) pitch and a thread (10) length which are greater than those of the larger member (7). The cylindrical void (11) of the larger member (7) extends past its operative thread (9) length to accommodate increased penetration of the smaller member (8).
摘要:
This disclosure relates to locks for bracelets, belts and the like to fasten two ends of the same together. The lock basically includes sliders which are attached to the ends of the bracelet, etc., with the sliders having rack formations which are engaged by a single gear to effect the simultaneous inward and outward movement of these sliders. Associated with the gear is a ratchet wheel and depressable keys are provided for effecting the locking, releasing and rotation of the ratchet wheel and the associated gear.