Abstract:
An injection bore anchor for use with rock having particularly low cohesive properties has at least two injection valves arranged in the front region of the injection bore anchor and formed as non-return valves so that it is possible for the grout suspension issuing from a longitudinal channel running through the injection bore anchor to flow out but not the reverse. In order to place the injection bore anchor, the injection bore anchor is initially used as a bore rod, wherein a flushing fluid is guided through a longitudinal channel and the bores in the region of a bore-crown. Subsequently, a grout suspension is introduced through the longitudinal channel into the bore hole for filling the bore hole, wherein subsequently the residual grout suspension located within the channel is displaced as far as the region of the bore-crown by a displacement body introduced into the channel. By a grout suspension being introduced again after the initial setting of the grout suspension in the bore hole and the rout suspension now flowing out due to the injection valves, exerting a cracking open effect on the grout located here and/or penetrating in the still existing cracks and gaps, the bore hole in the region of the bore hole bottom and the surrounding rock is expanded and thus the size of the region penetrated by the grout is considerably increased, so that it is possible to secure reliably the position of the injection bore anchor in the surrounding rock.
Abstract:
An eccentric screw pump comprises at least one stator, a rotor having a core and received for eccentric rotation in the stator, a first coupling device adapted to connect one end of the rotor to a drive system, a second coupling device provided at another end of the rotor, the coupling devices having external dimensions which are smaller than a diameter of the core of the rotor.
Abstract:
A stator for an eccentric spiral pump has a metallic casing, and an insert located inside the metallic casing. The insert is formed as a coating of a rubber-elastic material with a uniform layer thickness and has inner surface with a thread-like profile.
Abstract:
A method for treating a web of material such as rug with a treatment medium in which one treatment medium is applied as part of a layer of foam to the advancing web and the foam allowed to act thereon and, in order to obtain effects not obtainable with the single layer of foam, a further treatment medium is applied to the foam as a foam, liquid, paste or in solid form and allowed to interact with the foam before either treatment medium is fixed, with both treatment media acting on the web.
Abstract:
A projectile stopping device is proposed for the purpose of damping the noise propagation linked to the striking of projectiles, for the purpose of braking the projectiles and for easier recovery thereof, the individual stopping curtains (27 to 29) of which projectile stopping device, which are spaced apart from each other in the firing direction (1), consist of suspended steel cables. The stopping cables (26) are received in receiving devices which are identically formed at the top and bottom, and are thereby connected to guides (32) which are also formed in an identical manner to each other. The attachment of the stopping cables to these guides and their arrangement within a curtain are arranged in such a way that each stopping cable, when deflected, is always subject to a return force bringing it back into its original position. The projectiles striking the stopping curtains formed in this way within a firing field effect deflections of the steel cables both in the planes of the individual stopping curtains and also perpendicular thereto and can, after successful braking, be caught on the floor and sent for proper disposal.
Abstract:
Carpet material with at least a proportion of uncleaned used carpets is shredded to form a fiber-like wooly mass. The carpet material contains a thermoplastic binder with a low melting point, for example polypropylene, which can be derived from the used carpets or be added. Furthermore, a proportion of fiber-like wood chips is added to the carpet material. The total mass is compressed to form the molded part or panel, at a temperature which lies above the plasticizing point of the thermoplastic binder, but below the plasticizing point of any other thermoplastic components of the carpet material.
Abstract:
A boring tube has at least one tubular base body having a throughgoing longitudinal passage and an outer side and a coil arranged on the outer side of the base body and extending over its whole length. The coil has a pitch of 1 m-3 m and a radial width which starting from the outer side of the base body is at least 10 mm.
Abstract:
During setting of anchors in loose rocks ranging from cohesion-poor to non-cohesion rocks, an anchor including a drilling rod and a drilling crown is used, in which the drilling rod is provided with a central axial opening and with radial opening in the region to the drilling crown to supply a mortar suspension or the like through the central axial opening during the drilling process.
Abstract:
In a pattern-creating device for advancing textile or similar webs wherein the pattern creating liquid is present in the form of a film which extends over the entire width of the web and flows onto the web over a run-off surface with a rotatable tube extending along the run-off surface, the tube provided with a plurality of pattern creating elements which are distributed over its surface and make the film which flows down over the run-off surface, nonuniform at certain points, the pattern creating elements are soft resilient wiper elements, attached to the circumference of the tube so as to occupy only a fraction of the dimension of the tube in the longitudinal and circumferential direction, which are brought into contact with the run-off surface in its interior at a distance from the lower edge of the run-off surface.
Abstract:
An apparatus for applying a liquid to a moving web in patterns comprises a means for forming a liquid shroud which falls on the web and at least one nozzle for blowing a fluid medium against the shroud to displace the falling shroud and cause nonuniform application of the liquid to the web.