DE55917C - Slidable hose clamp with rotating pinch rollers - Google Patents

Description

IMPERIAL

PATENT OFFICE.

When draining fluids for medical, chemical or other purposes Vessels are usually made of rubber tubing, with the lower end of the tube serving as a lifter through a tap is closed. The latter, however, is caused by the often corrosive liquids soon leaks and often has to be replaced by a new one. Instead of a rooster the inventor uses a peculiar hose clamp, which parts with the liquid in general can not come into contact, and by means of which you can put the lifter into operation can. Such a hose clamp essentially consists of two small rollers that be pressed firmly against each other by a spring device. The rollers are rotatable, so that you can move the hose clamp on the hose without opening it.

According to Fig. 1 to 3, the two rollers a and b are housed in a capsule c , namely the upper roller a is rotatable with its axis, but otherwise immovable in the cylinder c , while the lower one is slidable in c. The lower roller b is rotatable in the capsule d, which can slide like a piston in the outer capsule c and is constantly pushed off the bottom of the capsule c by the spring e , so that the rollers are pressed against each other. The axis of the movable roller b ^l protrudes outward through the slots d ^{1 of} the capsule d and is attached to the ends of the arms / a bracket which extends over the capsule c to the button or plate g and with the slots f ¹ is guided on the ends of the axis α ^1. Pressing this button removes the movably mounted roller from the fixedly mounted one and, as a result, releases the hose clamped between the two rollers, which is passed through the openings c ^{1 of} the capsule, Fig. 10. By applying slight pressure if the drainage of the liquid is released, it is inhibited by releasing it. In order to continuously release the flow, or to pull the clamp over the hose, the rollers can also be left spread apart. For this purpose, the notches are f "in the slot f ¹ is provided, in which by a low lateral pressure on the clip, the ends of the axle a ¹ f insert. Bring to a plurality of such locking holes f", so can be characterized, the rollers Set them differently from each other and achieve a greater or lesser flow rate.

The handling of the clamp shown in FIGS. 4 and 5 is the same. The capsule has been replaced by a second bracket. The two brackets H and h each carry a roller at the ends of their arms and lead with the slots H ¹ and h ¹ alternately at the ends of the roller axes in such a way that when the brackets are pressed together, the rollers a and b move away from each other . The resilient connection is achieved by a rubber band i , which is looped over the ends of the axes a ¹ and b ¹ , but you can also arrange a metal spring instead of the rubber band. Even with this version

Claims (4)

there are locking gaps h " in the slots h in order to be able to determine the hose clamp in the open position. In the hose clamp according to FIGS. 6 to 9, the rollers α and b are located at the ends of the legs of a resilient bracket k I, and the spring force of the bracket presses the rollers firmly against one another. The hose runs in the length direction of the bracket through the opening 0. The upper ends of the bracket legs k and Z are provided with the two-fold arms k ¹ k " and Z ¹ Z", FIGS. 8 and 9, which alternate around the bracket legs grasp that one can press the two arms Z "and k" together with the hand and spread the bracket, so that the rollers can be removed from one another. In order to be able to keep the clamp permanently open, the ratchet arm / ratchet tooth m is attached to it, which fits into one or more tooth gaps η on the arm k ^1. Fig. 9 shows the clamp closed, Fig. 8 completely opened and locked. The engagement of the tooth m in its gap η is facilitated by the spring force of the arm A: ^1. In order to be able to easily release the lock, the inventor attached the two tabs χ and y to the bracket leg Z and the arm k " . If you press these two tabs slightly against each other, the lock is released and the clamp closes. The clamp also has a special purpose. In the rubber tube lifter, Fig. 10, the tube clamp K, before the short end of the tube is hooked into the liquid-filled vessel, is pushed over the tube to just below the metal bracket s. The rotatably mounted rollers can be pushed along the hose without opening them, and this can be used to bring the jack into operation. If one pushes the clamp K over the hose S from top to bottom, the liquid is sucked into the hose and operation can begin immediately, which is known to only be possible with various inconveniences with the usual hose lifters with a tap. The washer S ¹ attached to the end of the siphon hose prevents the fully opened clamp K from falling off the hose. The clamp is handled with only one hand, while both hands were required to operate the otherwise common cock. Pat en τ claims: ι. A hose clamp in which the rollers α and b are rotatably mounted in parts that can be moved against each other by overcoming the spring pressure, so that the clamp can be moved in the closed state over the hose without releasing it, which only happens as soon as one shifts the parts in which the rollers are mounted correspondingly against one another, whereby a locking device can be provided in order to keep those parts with the rollers apart. 2. The execution of the hose clamp marked under 1. in the manner, Fig. 1 to 3, that the roller α is rotatably mounted in the capsule c and in this the roller b mounted in the inner 'capsule d is displaced by the bracket / runs, the spring e praising the parts c and d from one another, while the bracket f is guided with the slots f ¹ at the ends of the axis α ¹ and can be fixed with the locking gaps f " on the same. 3. The execution of the hose clamp marked under 1. in the manner, Fig. 4 and 5, that the two rollers α and b are connected by the rubber band i or a spring device and can be moved from each other by the bracket H and h, wherein each bracket is guided with slots H ¹ and h ¹ on the roller axis of the other bracket and one of these is provided with a locking device h ″ . 4. The execution of the hose clamp identified under 1. in the manner, Fig. 6 to 9, that the two rollers α and b are located at the ends of the bracket legs k and Z, which are supported by the arms I ¹ I " and k ^x k " are encompassed in such a way that by pressing the arms Z" and k "together, the rollers move apart, the locking device m η serving to keep the bracket legs in a spread position. For this purpose ι sheet of drawings.