Abstract: A stainless steel powder is mixed with at least a Ni--Mn and a Ni--Cr powder, and the powder mixture is formed by loose packing into a required configuration. The powder mixture is sintered in a non-oxidizing atmosphere at the melting point of the Ni--Mn powder or at a higher temperature thereby to obtain a porous body.

Abstract: A sanitary napkin comprising an absorbent pad for absorbing the flow from vagina, a soft case for containing the absorbent pad therein, a patterned projection extended from one end of the soft case and bearing a symbolic pattern, and an engaging member provided at the other end of soft case for engagement with patterned projection. The sanitary napkin can be used without melancholy mood and can be disposed easily and cleanly by folding the napkin so as to conceal the flow.

Abstract: A fabric-unwinding apparatus, wherein a travelling, body can move back and forth over a work table. A fabric roll is supported on a support table mounted on the travelling body, and an unwinding roll is set on the support table in a manner to be contacted and driven with the fabric roll. The support table is made to be horizontally swung through 180.degree. in both ways so as to take a first position where the unwinding roll lies in the forward part with respect to the fabric roll and a second position where the fabric roll lies in the forward part with respect to the unwinding roll. A fabric unfurled from its roll by the unwinding roll is suspended on a belt conveyer built below the unwinding roll and then transported by the belt conveyer to the forward part of the moving course of the travelling body. The transported fabric is set on the work table by the feed roll to be spread thereover. When the support table is horizontally swung through 180.degree.

Abstract: A cloth-cutting machine designed to cut pieces of cloth on a working table by a cutting mechanism provided with an automatic cutter and capable of achieving effective cutting operation in any place on the working table without exerting any unbalanced load on the working table and also capable of effectively absorbing any vibration caused at the time of cutting operation.

Abstract: In the manufacture of a bearing material containing an aluminum base alloy, one surface of a steel strip is washed and roughened; the aluminum base alloy is spread on the surface of the steel strip; and the aluminum base alloy and the steel strip are hot-rolled in the air to pressure-bond the former to the latter into a unitary structure. Prior to spreading the aluminum base alloy, an aluminum powder which well adheres to the steel strip may also be spread on the surface of the steel strip.

Abstract: A device for and method of sensing conditions in a well bore by positioning a radioactive source adjacent the surface of the well bore for emitting a radioactive signal across the well bore. A means for detecting the radioactive signal is positioned opposite the radioactive source and electrical means are mounted with the detecting means for electrically measuring the intensity and frequency of occurrence of each detected signal. An electrical signal is provided by the electrical means for indicating the presence or absence of drilling fluids and/or the density of such fluids at the surface of the well bore.