DE40453C - Innovation in the pipe connection protected by patent no. 36735 - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 47: Machine elements.

Addition to patent no. 36735 of January 31, 1886.

Patented in the German Empire on December 7, 1886. Longest duration: January 30, 1901.

In place of the inclined screw surfaces provided with interruptions in the locking rings (see patent specification No. 36735), locking rings bb ¹ , FIGS. 1 and 2, with an uninterrupted screw thread should occur.

These locking rings engage in interrupted, but steadily increasing threads xx ¹ on the projections dd ^{1 of} the pipe ends. In certain cases, this arrangement can offer the advantage of a coupling effected by turning the locking ring several times, in which case a more elastic material than rubber can be used for the latter.

In the present case, a single or multiple thread can be used for this purpose; In the case of a two-start screw, in order to facilitate the engagement of the ring in the screw threads, the first thread turns of the ring can be omitted, as indicated at y \ in FIG. 1.

Fig. 3 shows a pipe connection in which any possibility of loosening the locking rings when handling the hoses is excluded. For this purpose, the rising but smooth edges ii ^l within the slip rings, as indicated in Fig. 4 of the patent specification of the main patent, are replaced by rack-like gears i t ¹ , of which the gears i in Fig. 4, in attached to the development of the inner ring surface, are shown.

Correspondingly, the projections ff ^{1 of} the mutually engaging tube halves α α ¹ lie against these gears ii ¹ , which are occupied with teeth. Means conical spiral, bb in the rear part of the ^{Verschlufsringe:} springs inserted hh ^1, the approaches ff ¹ against the teeth ii geprefst ^1. These springs, each of which is inserted between a ring uu ^l that can be screwed into the locking ring and a slidable disk ν v ¹ which is provided with an opening corresponding to the tube diameter, only come into effect when the two tube halves are to be connected. To make it easier to loosen the pipe halves, it is advisable to round off the edges of the teeth.

Instead of the aforementioned rack-like gears, ordinary racks can also be used step with resilient pawl, which device both inside and outside the locking rings can be attached.

In handling the hoses it is advantageous that the rings do not turn too much when the connection is loosened. For this purpose, the rotational movement of the locking ring is limited by the fact that, according to FIGS. 5, 5 b and 5 c, a projection q is cast or fastened on each of the pipe parts, which is located between one on the underside of the locking ring and only over half the circumference of the latter extending incision r can move so

That the movement of the ring by Anstofsen the edge r 'r "q to the mixture is limited. Behufs piercing a q approach is in the ring a through hole q ¹ spared.

In the pipe connections proposed by the inventor so far, the disadvantage has always been found that the projections could not be inserted quickly and safely into the corresponding incisions, which was due to the fact that the rings could rotate freely on the pipe ends; the correct position always had to be found by trial and error. In order to remedy this, the arrangement has been made so that the ring is held firmly after it has been pushed onto its tube half. This device consists in the arrangement of springs Ji ¹ in each connecting ring. When the connection is loosened, the springs lie against the elevations dd ¹ on the projections ο ο ¹ , or the front end of the spring enters a small recess at the lower left corner of the elevation. As a result of the contact between the ring and the pin q, on the one hand, and the action of the spring s, on the other hand, the position of the ring in relation to the projections of its tube half is determined, so that the interlocking of the projections at both ends can easily be achieved when grasping the two rings for coupling them together . When the tube halves are connected, the springs 5 s ¹ are pressed down by the projections dd ^l , so that the rings can be rotated freely when the tube halves are pushed into one another, but when the connection is released again after a short rotation by snapping the front spring end into the small recess be held.

Claims (3)

Patent Claims: In the case of the patent no. 36735 protected arrangement for coupling pipe or hose ends together in connection with two locking rings, the following modifications: 1. In connection with each other: a) instead of those specified in the patent claim of the aforementioned patent, at the edges of the "two opposite ends" "after protrusions standing on the outside «the arrangement of through the incisions the interrupted threads in the pipe ends joining each other; b) instead of the patent claim of the aforementioned patent designated »inclined surfaces«, with which the locking rings »behind the projections of the opposite Grasp pipe ends «, the arrangement of continuous threads on the Locking rings in such a way that the continuous thread of the locking rings into the interrupted Thread of the pipe ends engages, Fig. Ι and 2. 2. The arrangement of the specified in the patent claim of the aforementioned patent inclined surfaces with which the locking rings "grip behind the protrusions of the opposite pipe ends", as a rack-like jagged, rising surfaces, Fig. 3 and 4, to a random To prevent loosening of the pipe connection. 3. For the purpose of limiting the rotational movement of the locking rings when loosening. of the connection, the addition of a limiting pin q on each pipe end in connection with springs sj ¹ inserted into each of the locking rings, which determine the position of the rings in relation to the projections after the pipe connection has been canceled or loosened, so that the interlocking of the projections with ease when the coupling is renewed can be effected, Fig. 5, 5 a, 5 b and 5 c. For this purpose ι sheet of drawings.