CH240951A

CH240951A - Watering lance.

Info

Publication number: CH240951A
Authority: CH
Inventors: Stauffer Frederic
Original assignee: Stauffer Frederic
Priority date: 1943-10-01
Filing date: 1943-10-01
Publication date: 1946-02-15

Description

Zance d'arrosage. La presente invention a pour objet une lance d'arrosage, qui est caracterisee en ce quelle comporte au moins deux organes mo biles dont la Position relative determine la section transversale du jet ä 1'endroit oü il quitte la lance, un dispositif de reglage- per- rnettant de regler ä volonte la Position rela tive de ces organes et, de ce fait, de regler de ,fagon continue ladite section transversale du jet. Zance of watering. The subject of the present invention is a spray lance, which is characterized in that it comprises at least two movable members whose relative position determines the cross section of the jet at the place where it leaves the lance, an adjustment device allowing the relative position of these members to be adjusted as desired and, therefore, to continuously adjust said cross-section of the jet.

Le dessin annexe represente, ä, titre d'exemple, une forme d'execution de la lance d'arrosage suivant 1'invention. The appended drawing shows, by way of example, one embodiment of the spray nozzle according to the invention.

Fig.: 1 en est une vue en coupe axiale se- Ion 1-I de fig. 2. Fig. 1 is a view in axial section se- Ion 1-I of fig. 2.

Fig. 2 est une vue en plan correspondant ä la fig. 1. Fig. 2 is a plan view corresponding to fig. 1.

La lance d'arrosage representee comprend un corps 1 se vissant au moyen d'un tarau- clage 2 sur 1'extremite dune conduite d'arro- sa.ge telle que-celles employees dann la lutte contre 1'incendie par exemple. Le corps 1 est uruni d'un canal interieur 3. La Partie ter- minale <B>-</B>du corps 1 est entaillee suivant un plan median, ce qui determine deux parois 4 et 5 dopt les faces en regärd 6 et 7 sont paral leles et delimitent une fente dans laquelle de- bouche 1e conduit 3. The sprinkler lance represented comprises a body 1 which is screwed by means of a thread 2 onto the end of a sprinkler pipe such as those used in fire-fighting, for example. The body 1 is surrounded by an interior channel 3. The end part <B>-</B> of the body 1 is notched along a median plane, which determines two walls 4 and 5 dopt the facing faces 6 and 7 are parallel and delimit a slot into which the first conduit 3 emerges.

Entre les faces paralleles 6 et 7 des parois 4 et 5 sont montes deug organes mobiles 8, 9 montes sur des pivots 10, 11 dont les axes sont perpendiculaires aux faces 6 et 7, et qui sont Portes par les parois 4 et 5. L'epaisseur des organes mobiles 8, 9 est egale ä la dis- tance separant les faces paralleles 6 et 7. Les organes 8, 9 sont de forme allongee, comme ön 1e voit sur la fig. 1,. et 1e pivot de chacun d'eux est situe ä l'une de ses extremites. Les faces de ces organes 8, 9 qui sont en regard Tune de 1'autre comprennent chacune une sur- face plane 12, respectivement 13. L'ecarte- ment de ces surfaces planes 12 et 13 est va= riable du fait du montage pivotant des or- ganes 8 et 9. 0n voit que 1'espace compris entre les faces 6 et 7 des parois 4 et 5, dune pari, et entre les surfaces 12 et 13 des or- ganes 8 et 9, d'autre Part, constitue 1e pro- longement du conduit interieur 3 du corps 1. Les parois 4 et 5 et les organes 8 et 9 deli- mitent donc un canal de sortie de section rec- tangulaire. Between the parallel faces 6 and 7 of the walls 4 and 5 are mounted deug moving parts 8, 9 mounted on pivots 10, 11 whose axes are perpendicular to the faces 6 and 7, and which are carried by the walls 4 and 5. the thickness of the movable members 8, 9 is equal to the distance separating the parallel faces 6 and 7. The members 8, 9 are elongated in shape, as seen in FIG. 1,. and the pivot of each of them is located at one of its ends. The faces of these members 8, 9 which face each other each comprise a flat surface 12, 13 respectively. of the members 8 and 9. It is seen that the space comprised between the faces 6 and 7 of the walls 4 and 5, on the one hand, and between the surfaces 12 and 13 of the members 8 and 9, on the other hand, constitutes the first extension of the inner duct 3 of the body 1. The walls 4 and 5 and the members 8 and 9 therefore delimit an outlet channel of rectangular section.

Pour regler ä volonte 1'ecartement des extremites libres des organes 8 et 9, un cha- peau 14 est visse Sur un filetage 15 du corps 1. Ce chapeau presente une ouverture 16 pour la libre sortie du jet, comme an 1e verra plus loin. Il presente en outre une surface inte- rieure de forme approximativement conique 17, contre laquelle des biseaux 21 et 22, si- tu6s Sur les cetes exterieurs (par rapport ä Faxe du jet) des extremites libres des organes 8 et 9, sont appliquees par Suite de la Pres sion exercee par Feau Sur les surfaces planes 12 et 13 qui tend ä ecarter les extremites libres de ces organes 8 et 9. 0n congoit facile- ment qu'en reglant la Position axiale du cha- peau 14 Sur 1e corps 1, c'est-ä-dire en 1e de plagant axialement par vissage Sur ce corps, an fait varier la valeur maximum possible de Fecartement des organes 8 et 9. 0n peut meine amener ces extremites libres ä venir en contact Fune avec 1'autre et arreter pratique- ment ainsi la sortie du liquide. La section transversale du jet ä 1'endroit oü il quitte la lance est rectangulaire, comme an 1e voit en 24 Sur la fig. 2. Cette section est de dimen- sion constante dans un sens (c'est la distänce separant les surfaces 6 et 7) et est variable dans la direction perpendiculaire (c'est la dis= tance separant les aretes terminales 18 et 19 des surfaces 12 et 13). Il ressort de la fig. 1 que la valeur maximum de la section trans- versale du jet ä 1'endroit oiz il quitte la lance correspond au parallelisme des surfaces planes 12 et 13. Ceci correspond ä la valeur maxi- mum de Fecartement des organes 8 et 9 auto- risee par 1e chapeau de reglage 14. To adjust the spacing of the free ends of the members 8 and 9 as desired, a cap 14 is screwed onto a thread 15 of the body 1. This cap has an opening 16 for the free exit of the jet, as will be seen later. . It further has an interior surface of approximately conical shape 17, against which bevels 21 and 22, located on the outer sides (relative to the axis of the jet) of the free ends of the members 8 and 9, are applied by Result of the pressure exerted by the water on the flat surfaces 12 and 13 which tends to move the free ends of these members 8 and 9 apart. , that is to say in the first place axially by screwing on this body, an varies the maximum possible value of the spacing of the members 8 and 9. It is even possible to bring these free ends to come into contact with each other. and thus practically stopping the outflow of the liquid. The cross-section of the jet where it leaves the lance is rectangular, as seen at 24 in FIG. 2. This section is of constant dimension in one direction (this is the distance separating the surfaces 6 and 7) and is variable in the perpendicular direction (this is the distance separating the terminal edges 18 and 19 from the surfaces 12 and 13). It appears from fig. 1 that the maximum value of the cross-section of the jet at the place where it leaves the lance corresponds to the parallelism of the flat surfaces 12 and 13. This corresponds to the maximum value of the separation of the members 8 and 9 authorized by the 1st adjustment cap 14.

La lance d'arrosage decrite presente 1'avantage de permettre, gräce ä des moyens tout ä fait simples et de fonctionnement sür, 1e reglage progressif du jet. 0n peut ainsi facilement regler la section de sortie du li quide, de maniere que 1e jet reste compact jusqu'ä 1'endroit oü il frappe 1e point que Fon desire arroser. Ceci est particulierement im- portant Jans 1e eas de la lutte contre Fincen- die. Par ailleurs, la lance d'arrosage decrite evite absolument la production de coups de belier dans la canalisation, du Fait que 1e re- glage est progressif. The spray lance described has the advantage of allowing, thanks to means that are quite simple and safe to operate, the progressive adjustment of the jet. It is thus easy to adjust the outlet section of the liquid, so that the jet remains compact up to the place where it hits the point that one wishes to water. This is particularly important in the first phase of the fight against Fincendie. Furthermore, the spray nozzle described absolutely avoids the production of water hammer in the pipe, due to the fact that the adjustment is progressive.

Pour Farrosage des cultures, an regle la Position des organes 8 et 9 de maniere ä ce que les aretes 18 et 19 soient tres rappro- chees, ce qui donne un jet de forme tres apla- tie et se dispersant, par consequent, tres ra- pidement sous forme de gouttelettes. </SDO DE> For the watering of crops, the position of the organs 8 and 9 is adjusted so that the edges 18 and 19 are very close together, which gives a jet with a very flat shape and dispersing, consequently, very ra - quickly in the form of droplets. </SDO FROM>

Claims

CLAIM Sprinkler lance, characterized in that it comprises at least two movable members, the relative position of which determines the cross-section of the jet at the place where it leaves the lance, an adjustment device making it possible to adjust the relative position as desired. of these organs and, therefore, to adjust continuously said cross section of the jet. 1. Lance according to claim, characterized in that it comprises two fixed walls having parallel facing faces between which are arranged the two aforesaid movable members, these two walls and these two members delimiting a channel rectangular section outlet.

2. Lance according to claim and sub-claim 1, characterized in that the two movable members are mounted so as to be able to pivot about two axes perpendicular to the parallel faces of the above-mentioned walls.

3. Lance according to claim and sub-claims 1 and 2, characterized in that the pivot point of each of the two aforesaid movable members is located at one of the ends of this member so that the pressure liquid tends to separate the free extremities of these organs from each other.

4. Lance according to claim and sub-claims 1 to 3, characterized in that the facing faces of the two aforesaid movable members each comprise a flat surface, the first adjustment device being established so that the maximum value of the spacing moving parts authorized by this provision, adjustment tif corresponds to the parallelism of these flat surfaces.

5. Lance according to claim and sub-claims 1 to 3, characterized in that the first adjustment device comprises a hat woven on the first body of the lance and cooperating with the free ends of the two aforesaid movable members, to adjust their spacing in fixing, for each of its positions, the possible magi.mum value of this spacing, this hat having an opening for the first free passage of the jet.

6. Lance according to claim and sub-claims 1 to 3 and 5, characterized in that the aforesaid cap is arranged to bring the free ends of the two aforesaid mobile members into contact with each other, in order to reduce the Passage section to zero and practically stop the exit of the liquid.

7. Lance according to claim and sub-claims 1 to 3 and 5, characterized in that the free end of each of the two aforesaid movable members has on its outer side, with respect to the axis of the jet, a bi- bucket cooperating with an oblique surface of the cap, which moves axially by screwing onto the body of the lane.