Abstract: A multi-spindle double twist twisting machine having a spindle frame in the form of a support plate that serves as a self-supporting sub-frame mountable alternatively in either a vertical or horizontal spindle machine and on which a plurality of spindle assembly mounting means are supported in two staggered rows. The support plate has side flanges to facilitate forming an enclosure around spindle assembly whorls and a belt drive assembly. A separator wall is mounted on the support plate between the rows of spindle assemblies and has ballooning yarn guides mounted thereon and extending over the spindle assemblies. The wall is extendable to adjust for yarn package sizes and operating conditions. The support plate may be formed in two portions with adjacent flanges for attaching the portions together and the wall may have an attaching flange for positioning between the adjacent flanges of the support plate portions to form an integral independent sub-frame.

Abstract: An interchangeable objective for a camera to provide diaphragm control. The objective has an objective tube and a lens mounting axially movable in the tube. A bayonet ring is provided for connecting the objective tube to a camera. Further means are provided for axially moving said objective tube within the bayonet ring to bring said tube into and out of the camera housing and for engaging said tube into the bayonet ring in the position ready for exposure. A diaphragm adjustment ring is rotatably mounted on the bayonet ring, and a diaphragm control ring rotatably disposed on the lens mounting transmits the adjustment of the adjustment ring upon the diaphragm. A coupling element on the adjustment ring is disengageable from and capable of being engaged into the diaphragm control ring.

Abstract: A ballon limiter in a textile machine with wetting means to supply a liquid for treatment of a ballooning thread in its limited path therethrough, the wetting means including a holder fastened over flow openings in the balloon limiter wall, a casing mounted in the holder and containing at least one insert of absorbent material which is impregnated with the treatment liquid and which is provided with projections extending through the flow openings in the balloon limiter wall for direct contact with the ballooning thread, and clamping means to releasably fasten the casing in the holder over the flow openings.