Abstract: In a needle loom having at least one needle bar coupled by cam follower means to two eccentric shafts in order to be moved by said eccentric shafts in a movement path having two components which are normal to one another, the eccentric shafts are each provided with eccentric cams which have equal amounts of eccentricity and are adapted to be synchronously rotated, and said cam followers rotatably mounted on said eccentric cams are movably connected to one another by at least one coupling element which is adapted to yield in one direction but is stiff in a direction normal thereto.

Abstract: In a camel back cross lapper, a fiber web to be layered to form a fleece is guided from an infeed zone until its discharge in a layering zone in sandwiched manner between two transport belts extending over the arms of the cross lapper. The transport belts are extended over a layering zone on an output conveyor to cover the web freshly deposited onto the output conveyor to avoid the web from being affected by harmful aerodynamic effects created by the movement of the layering arm of the cross lapper. In an embodiment, a web buffer is combined with the cross lapper such manner that the transport belts extend through web buffer.

Abstract: Apparatus for variably buffering a web material, the apparatus having two endless transport belts including feed sections in which the belts are juxtaposed, and return sections, the feed and return sections being of varying lengths. In the feed sections, the belts move through a U-shaped path portion, commonly guided over a deflecting roller. In the return sections, the belts are guided through U-shaped path portions extending opposite to the U-shaped path portion of the feed sections, each belt wrapping separate deflecting rollers. The three deflecting rollers are rotatably supported on a common mounting frame movably held in a machine stand for compensated length variation of the feed and return portions.

Abstract: A non-woven fiber web laying apparatus including (1) a camel back cross lapper having a supply arm, a layering arm connected thereto, and two delivery transport belts guided in juxtaposed fashion from an infeed zone to a lower end of the layering arm and (2) an upstream web buffering apparatus adapted to hold a web between two take-up transport belts at least one of which is one of the two delivery transport belts, the apparatus sandwiching the web substantially the entire path from the take-up site to the layering-arm lower end. While at least one of the two take-up transport belts of the web buffering apparatus is one of the delivery transport belts of the cross lapper, in one embodiment both of the take-up transport belts are the delivery transport belts. In another embodiment, only one of the take-up transport belts is a delivery transport belt, the other being a pressure belt operating only within the web buffering apparatus.

Abstract: In the manufacture of a fiber fleece with a nonwoven producing means and a fleece laying machine, which produces from a single or multi-layered nonwoven web contionuously discharged by the nonwoven producing means a fleece web having a thickness variable across the laying width, the nonwoven web is cyclically drawn on the way between the nonwoven producing means and the fleece laying machine at a fixedly determined location, said drawing depending on the laying movements of the fleece laying machine to form a fleece web of a regular cross sectional profile. Between a separate drawing equipment performing the drawing process and the inlet into the fleece laying machine, the nonwoven web may run through a separate, variable buffer storage, which adapts the speed fluctuations of the nonwoven web on the outlet side of the drawing equipment to the intake speed of the fleece laying machine.

Abstract: In the manufacture of a fiber fleece with a nonwoven producing means and a fleece laying machine, which produces from a single or multi-layered nonwoven web contionuously discharged by the nonwoven producing means a fleece web having a thickness variable across the laying width, the nonwoven web is cyclically drawn on the way between the nonwoven producing means and the fleece laying machine at a fixedly determined location, said drawing depending on the laying movements of the fleece laying machine to form a fleece web of a regular cross sectional profile. Between a separate drawing equipment performing the drawing process and the inlet into the fleece laying machine, the nonwoven web may run through a separate, variable buffer storage, which adapts the speed fluctuations of the nonwoven web on the outlet side of the drawing equipment to the intake speed of the fleece laying machine.

Abstract: A drive apparatus for the needle bar of a needle machine includes a first drive mechanism connected with the needle bar and which applies a first movement component extending perpendicular to the needle bar, a second drive mechanism connected with the needle bar which applies second movement component parallel to the needle bar, and an additional mechanism for varying the movement stroke of the parallel component. Two eccentric shafts are assigned to the second drive mechanism, these eccentric shafts being driven at the same speed and the eccentric sections of which having a connecting rod supported thereon converting the rotating movement of the associated eccentric section into a linear oscillating movement. The two linear oscillation movements are supplied to a coupling bridge at two first and second hinge points spaced apart from one another. The coupling bridge is coupled with the needle bar or a carrier thereof at a third hinge point arranged between the first and second hinge points.

Abstract: In a needle loom for needling a fiber batt continuously moved through the needle loom, a horizontal driving apparatus connected to a needle bar for horizontally driving said needle bar to and fro is provided which is driven in synchronism with a vertical driving apparatus providing the needle bar with a reciprocating up and down movement by which needles affixed to the needle bar are stitched into the fiber batt to be needled. The timing of the horizontal and vertical movements imposed onto the needle bar is adjusted in a manner that the needle bar horizontally follows the movement of the fiber batt when the needles are stitched in the fiber batt, whereas in the horizontal return stroke of the needle bar its needles are out of the fiber batt.

Abstract: Material and component testing machine for providing random length bending and/or torsion loads in preferably bar-shaped test samples, where(a) the test sample 11 is fixed at both ends 12,13 in respective clamping means 14,15;(b) the one clamping means 14 is situated at the front end 16 of a shaft 17 which is resistant to bending and torsion and rotatable about its longitudinal axis, said shaft being mounted in two preferably hydrostatic bearings attached to the machine frame 19;(c) a radially projecting lever arm 21 is connected to the rear end 20 of the shaft 17, to which a force Z is applied;(d) the other clamping means 15 is situated in the center of a yoke 23 which is resistant to bending and torsion, at the back end of which forces X,Y, are applied respectively, each force being at right angles to the other;(e) the yoke 23 is supported on the machine frame through its two arms 24 via a cardan joint 24-28.