A method of using linking machines is described wherein a linking machine having a pair of needles operating on fabric impaled onto radially extending points around the dial of a linking machine is used so that the first needle to operate on the fabric is adapted to engage the fabric between adjacent points and slightly above while the second of the said needles is adapted to engage the loops of fabric impaled on said points.

There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which a substantial amount of water and certain surfactants are employed in the reaction mixture.

.alpha.-substituted derivatives of valproic acid are provided for conjugation to antigenic compositions, particularly poly(amino acids), and enzymes. The antigenic conjugates are employed for the production of antibodies, which find particular use in immunoassays for the determination of valproate, while the enzyme conjugate finds use in a homogeneous enzyme immunoassay for the determination of valproate. The compounds are synthesized by alkylating valproate at the tertiary carbon atom by an ali...

In drilling a hole using reverse circulation and the Venturi effect, drilling fluid is caused to flow through the annulus between the set of drill pipes and the hole and to rise under reduced pressure in the interior of the drill pipes to a level at which it is ejected outside the drill pipes, using a fluid diverting device connected in the set of drill pipes and which includes a Venturi tube, the device causing ejection of the fluid from the interior of the pipes, drilling fluid being pumped fr...

An iron modifier containing, percent by weight; the components being added into liquid iron in the form of a mixture of alloys and foundry coke in the following proportions, percent by weight: ______________________________________ silico-mishmetal 70 to 90 foundry coke 10 to 30; ______________________________________ and this mixture is introduced in an amount of from 0.3 to 0.5% by weight. The modifier according to the present invention makes it possible to produce thin-walled iron castings wi...

In a computed tomography system using radiation, a large number of radiation beams are projected into a selected slice-like sectional portion of a subject to be reconstructed, in various directions. A profile of measured projection data is obtained from the radiation beams penetrated in parallel at each given angular interval. The profile of measured projection data thus obtained is subjected to a filtering operation to produce profiles of first modified projection data. The profile of modified ...

A valve control element having a rotatable relatively rigid element in contact with a relatively flexible element and so arranged that relative movement between the two elements serves to cause a change in the contour of the flexible element thereby effecting a valve control function.

Methods for the large scale preparation of clinical albumin are disclosed. One method includes dilution of plasma with a NaCl solution containing disodium ethylene dinitrilo tetraacetate and a stabilizer such as sodium caprylate. The resulting solution is then subjected to heating and cooling steps, followed by the addition of polyethylene glycol to precipitate impurities, with albumin remaining in the supernatant. Isoelectric precipitation is then employed to recover the desired albumin product...

A method of therapeutically administering benzodiazepines by the intraoral, i.e. sublingual or buccal route is disclosed.

A transistor comprises two spaced apart electrodes, a body of semiconductor material between and in contact with the two electrodes, a layer of liquid crystal material in contact with and on said semiconductor body, and a third electrode in contact with the layer of liquid crystal material. Integrated optologic devices are made from these liquid crystal transistors.