A blended hydraulic cement composition, curable at low temperatures, including temperatures below the freezing point of water, is composed of portland cement, slag, pozzolans including metakaolin, and admixtures including potassium carbonate and water reducing compositions. The cement is particularly useful in producing concrete compositions which achieve high strength in a brief period of time, a...

Oligonucleotide functionalizing reagents are disclosed which are useful in introducing sulfhydryl, amino and additional hydroxyl groups into oligonucleotides. The reagents are substantially linear in structure, at one end provided with a phosphoramidite moiety, at an opposing end provided with a sulfhydryl, amino or hydroxyl moiety, the two ends linked through a hydrophilic spacer chain. Methods o...

The invention relates to the production of certain phenyl- and N-heterocyclic phosphorothioates and phosphonothioates and phosphates, by a reaction between a suitable alkali metal or alkaline earth metal O-phenyl compound or an alkali metal or alkaline earth metal O-N-heterocyclic compound with a suitable phosphorochloridate, phosphorochlorothioate, phosphonochloridate or phosphonochlorothioate un...

The invention relates to a device for measuring tensile forces at any desired location along a chain. The device comprises a load take-up body (10) which has a chain-link engaging member (12) on each end thereof and which is intended to take-up the tensile load between the chain-link engaging members (12), and further comprises a means (20) for measuring and indicating the tensile load taken-up by...

The invention relates to a device for measuring tensile forces at any desired location along a chain. The device comprises a load take-up body (10) which has a chain-link engaging member (12) on each end thereof and which is intended to take-up the tensile load between the chain-link engaging members (12), and further comprises a means (20) for measuring and indicating the tensile load taken-up by...

PCT No. PCT/GB88/00805 Sec. 371 Date Apr. 23, 1990 Sec. 102(e) Date Apr. 23, 1990 PCT Filed Sep. 30, 1988 PCT Pub. No. WO89/02812 PCT Pub. Date Apr. 6, 1989.A cutting guide for use in making a cut in a carpet comprises an elongate base including a substantially flat upper surface portion and a channel which extends along the base. The inner side walls of the channel are at an oblique angle relativ...

Inventia se refera la un dispozitiv de fixare termica a copiilor xerografice, destinat, în principal, masinilor de copiere electrostatica cu placi, realizând o fixare sigura într-o incinta termostatata, confectionata dintr-un material termoizolant, în interiorul acesteia afându-se montat, pe pereti laterali, o sita care la trecerea curentului electric prin ea furnizeaza energia termica necesara fi...

Inventia se refera la un procedeu pentru obtinerea unui catalizator pentru dehidrogenarea hidrocarburilor parafinice C3-C5, constând în aceea ca oxidul de aluminiu se îmbiba cu solutii de compusi de crom si de potasiu, se usuca si apoi produsul obtinut se îmbiba cu solutia unui compus de siliciu cu formula generala: (vezi descriere), în care x, y, w, z sunt grupa alchil, aril, alcoxi, care contine...

Unthreading and destruction are carried out with an inner cork being pressed by hand downwards into a cannula can for removal of adhering and cutting waste material, the cork having a shape (1) which coincides with the unthreading parts of the cannulas, and support surfaces (6,7) for the cannulas and vacuum tube containers.

A rack-like device according to the invention comprises two separate side parts 21,22, which are each provided at their respective one edge section with grooves 19,20 in the mutually facing inner sides of the side parts. Inserted and clamped in these grooves is a roller chain 12, the sides of which are precisely guided by the side walls and base of the groove. The chain is locked 30 against displa...

Each comprises a shell of cardboard or similar stiff material. Within this is a deep drawn lining 1 part of which extends over the upper edge of the shell. It is shaped to form a flat top edge and an angled, downwards-directed edge flange. The lining is deep drawn in a mould to give a tight contact with the bottom and sidewalls of the shell. The upper edge is drawn to run completely in line with t...

A radio station in the system has receivers (12,13) for incoming signals from another station, a prodn. unit (8) for a local reference frequency, and units for deriving signals from those received using the local reference frequency, a correlator (20) for the derived signals with synchronisation patterns produced in the station, and a control (6) for at least the reference prodn. unit and the corr...

Against the base (7) of the deepened section (2) of the spoiler, goods such as transport containers (31) can rest. Such a container can therefore have backwardly directed projection (35) at a height above its bottom surface which permits it to engage under a wall part (5,6) of the spoiler. The spoiler unit also has a part (28) which can pivot upwards from its base for releasable attachment to the ...