baber/WOPTO huggingface dataset:
Patent GB-1313207-A (GB)
Title: Process for preparing 7-aminocephalosporanic acid 7-aca from cephalosporin c and certain new intermediate cephalosporin c derivatives
IPC: C07D501/18
Filed: 1970-06-24
Abstract: 1313207 Preparing 7-amino-cephalosporanic acid; N-haloalkanoylcephalosporins ELI LILLY & CO 24 June 1970 [26 June 1969] 30753/70 Heading C2A [Also in Division C3] 7-Amino-cephalosporanic acid is prepared from cephalosporin C by acylating the amino group in the adipamyl side chain with an α- halo- or α,α-dihalo-C 2  to C 4  alkanoyl group, protecting the carboxyl groups, treating with a halogenating agent to convert the amido group in the 7-position to an imino halide, converting the imino halide to an imino ether, hydrolysing the imino ether and if necessary, removing the carboxyl-protecting groups, to give 7-aminocephalosporanic acid. The amino group is preferably acylated with a chloroacetyl group, suitably while the cephalosporin C is still in the preparative fermentation broth. The N-haloalkanoyl derivative is extracted with waterimmiscible solvent (e.g. alkyl esters preferably with 1/10 volume of alkanol) and precipitated from the extract as a salt. The preferred salt is an amine salt, since the subsequent reaction for protecting the carboxyl groups proceeds more rapidly with better yields if an amine salt is used. The carboxyl groups arc protected by esterification, preferably as a silyl ester by treatment with an alkylchlorosilane. The imino halide is formed by reaction with a halogenating agent such as a chloride or oxychloride of phosphorus, sulphur or carbon, preferably phosphorus pentachloride, and is converted to the imino ether by reaction with an alcohol, a phenol or a sulphydryl compound, e.g. npropanol. The imino ether is hydrolysed or alcoholysed by treatment with water or an alcohol under mildly acidic or basic conditions; this treatment may also remove the carboxylprotecting ester groups, or alternatively they may be removed by other conventional procedures, e.g. hydrogenolysis. Novel N - α - haloalkanoyl cephalosporins having the formula wherein R is an α-halo- or α,α-dihalo-C 2  to C 4  alkanoyl group and X is hydrogen or C 1 -C 4  alkyl, C 4 -C 8  t-alkyl, C 5 -C 8  t-alkenyl, C 5 -C 8  talkynyl, phenacyl, trichloromethyl, benzyl, benzhydryl, p-methoxybenzyl, p-nitrobenzyl, trityl, trimethylsilyl, dimethylsilyl, methylsilyl, triethylsilyl, diethylsilyl, or ethylsilyl, and the alkali metal, alkaline earth metal, quinoline, cyclohexylamine, 5-ethyl-2-methylpyridine, 2-, 3- or 4-picoline, N-ethyl or N-methylmorpholine, 2,6-lutidine, N,N-diethylcyclohexylamine, hexamethylenetetramine, N,N - dimethylbenzylamine or N,N-dibenzylethylenediamine salt thereof when one or both X groups are hydrogen, are prepared by treating cephalosporin C with an appropriate haloacyl halide or mixed anhydride and if required, salifying the product. Reference has been directed by the Comptroller to Specification 1,041,985.
Patent GB-975400-A (GB)
Title: Improvements relating to loading machines used in coal mines,quarries and other works
Inventor: JACKSON JAMES SCOTT
IPC: E21D9/12
Filed: 1960-09-07
Abstract: 975,400. Endless conveyers. MAVOR & COULSON Ltd. Aug. 31, 1961 [Sept. 7, 1960], No. 30776/60. Heading B8A. In a mining machine disintegrated material gathered at the front end of the machine is conveyed by a scraper conveyer topping the frame which comprises a slewing jib 10 jointed to a body part 11. Slewing is carried out hydraulically by ram units 7. When slewing, for example, clockwise the anchorage part 30 of telescopic parts 30, 31 serves as an abutment (in the upper part of the Figure), the mechanical link 36, 38, 26 causing lever 22 to pivot about pin 25 (lower part of Figure) pin 24 thus forcing plate 20 outwards and by means of springs 16 connected to a conveyer pulley 14 counteracting any tendency of the chain to slacken.
Patent GB-265148-A (GB)
Title: Method of designing and turning down or reconditioning rolls in three-high rolling mills
IPC: B21B1/08
Filed: 1926-12-04
Abstract: 265,148. Vereinigte Stahlwerke Akt.- Ges. Bochumer Verein, (Assignees of Cramer, H.). Jan. 28, 1926, [Convention date]. Rolling flanged and profile bars.-In a process for utilizing the idle pass grooves 8 - - 14 of three-high rolling mills such as those used for rolling rails or other profiled bars without the necessity of providing a new middle roll, the contact surfaces 'between the rolls are of pronounced conical form so as to facilitate the reconditioning of the rolls by a turning operation after the operative pass grooves 1 - - 7 have become worn. Such contact surfaces 16 to 17, 27 to 26, 19 to 20, 28 to 29, &c. are indicated in Fig. 2. It is stated in the Specification that by turning down the rolls by half the amount which would be normally necessary to restore the pass groove after wear, the wear on the contact surfaces is obviated. The machinery of the rolls is carried out in such a manner that first the pass grooves 1 - - 7 are completed while the idle pass grooves 8 - - 14 are only preliminarily turned. After wear of the first set of pass grooves, the second set are finish turned, and when these in turn become worn the first set of grooves are reconditioned by a further turning operation.
Patent GB-882095-A (GB)
Title: Organo functional cyclosiloxane polymers and derivatives thereof
Inventor: BAILEY DONALD L
IPC: C07F7/21
Filed: 1957-10-03
Abstract: The invention comprises cyclic siloxanes of the formula <FORM:0882095/IV (a)/1> wherein Z is an alkali metal-oxy radical (MO-) from an alkali metal hydroxide, chlorine, or a hydroxy, alkoxy or aryloxy radical, R1 is an alkyl or aryl radical, a is an integer from 3 to 10 inclusive and n is an integer from 3 to 5 inclusive, and mixtures thereof.  The polymers may be made (i) by neutral hydrolysis of carboalkoxypolymethylenealkyldialkoxysilanes, (ii) by subjecting a cyanopolymethylenealkyl cyclic siloxane to alkaline hydrolysis, as described and claimed in Specification 882,094 to yield the carboxy cyclic siloxane which is then converted via the cyclic acid chloride to the desired carboalkoxy cyclic siloxane, or (iii) by the direct acid-catalysed alcoholysis of a cyanopolymethylene cyclic siloxane as described in Specification 882,098.  The carboalkoxy siloxanes may be converted to the corresponding acid salts by saponification with a base, the resulting salts can be converted to the free siloxane acids with a mineral acid, and the siloxane acids can be reacted with thionyl chloride to give the corresponding acid chlorides.  In a typical Example (1) g -carbethoxypropylmethyldiethoxysilane was dissolved in ether and shaken with water, and the ether layer was dried, stripped of solvent and fractionated to yield (a) the cyclic tetramer and (b) the cyclic pentamer.  Uses: for modifying other siloxanes; thus in Example (7) g -carboxypropylmethylsiloxane cyclic tetramer was equilibrated with hexamethyldisiloxane, using H2SO4 as catalyst, to yield bis-(trimethylsiloxy)-g -propylmethylsilane and bis-(trimethylsiloxy) - bis(g -propylmethyl)disiloxane, the latter being useful in the production of polyester resins; and in Example (8) dimethylsiloxane cyclic tetramer and pentamer were equilibrated with g -carbethoxypropylmethylsiloxane cyclic tetramer to yield a modified dimethylsiloxane oil. Specifications 847,803 and 847,804 also are referred to.  Reference has been directed by the Comptroller to Specifications 769,496 and 786,020.
Patent GB-536977-A (GB)
Title: Improvements in or relating to automatically variable torque converters
IPC: F16H47/12
Filed: 1939-11-28
Abstract: 536,977. Hydraulic torque converters. HOBBS, H. F. Nov. 28, 1939, Nos. 30962/39 and 3583/40. [Class 69 (ii)] A variable torque converter comprises a rotary casing 20 containing fluid impelled centrifugally towards the periphery, the fluid operating driving wheels 29 mounted on axes parallel to and offset from the casing axis and having pockets coacting with an inner curved surface formed with inwardly directed projections 39 so that the fluid is carried inwards towards these projections over which it passes to actuate similar reaction wheels 35 delivering the fluid to the outer parts of the surface and so again to a driving wheel, the wheels 35 re-acting on to a fixed part. The input shaft or engine flywheel 21 is geared by wheels 24, 25 to the spindles 26 of the driving wheels, which spindles are geared through wheels 27, 28 to an intermediate output shaft 23 connected through reversing gear 18 to the output shaft 22. The spindles 33 of the re-action wheels carry wheels 36 gearing with a common wheel 43 re-acting on to a member 49 fixed to the housing 19, through a free-wheel device. Oil &c. is fed from a pump 52 through a pipe having a relief valve and a cock 55 controlled from the panel of a car, (e.g. connected to the accelerator pedal), and passes through passages 57, 58 to the bearings and so to the interior of the casing 20. The depth of liquid in the casing is controlled by an overflow aperture 61 and by a valve-controlled leak 60 opened centrifugally. The reversing drive may be epicyclic, controlled by a brake ; the brake may be replaced by a free-wheel. The vanes of the wheels may be resiliently pressed outward, their paths being controlled by pins and cam grooves. The inlet of the liquid may be controlled by a centrifugal valve, or the amount in the casing may be controlled by connection to an auxiliary chamber of variable capacity. The gearing may be modified, e.g. the input and output shafts may carry sun-wheels engaged by pinions on the driving-wheel spindles. The working fluid may be mercury.
Patent GB-879614-A (GB)
Title: Improvements in or relating to inductive devices
IPC: H01F29/14
Filed: 1959-09-11
Abstract: 879,614. Inductances; frequency changing. CANADIAN WESTINGHOUSE CO. Ltd. Sept. 11, 1959 [Sept. 27, 1958], No. 31018/59. Class 38 (2). [Also in Group XXXIX] A non-contact-making inductive apparatus for providing a signal or control current in response to the operation of a push-button, or rotary member, comprises a core 10 (Fig. 1) carrying series-connected balanced opposing windings 11A, 11B connected to a centre-tapped transformer or choke winding as shown and provided with a permanent magnet 20 (or an electromagnet) movable into the position shown dotted, which is closer to the core 10, by operation of, e.g. push-button 31 (Fig. 2). When the flux due to magnet 20 in the dotted position adds to the flux produced in one limb during the appropriate half-cycle the limb saturates whilst on the succeeding half-cycle the other limb saturates and a current of mainly second harmonic frequency flows in circuit 19. A rectifier 37 may be provided and three distinctive signals may be obtained from three of the inductive devices in parallel by using different rectifier arrangements (Fig. 3, not shown). The magnet 20 may be formed as a removable key filling into a recess 55 (Fig. 8) inside a casing 50 containing the core 10, windings 11A and 11B and rectifier 37. The unit or parts thereof may be encapsulated in resin. Instead of a permanent magnet an electromagnet 40 (Figs. 4B and 5) with movable polepieces 42 may be used, thus enabling two devices to be connected in series. A magnetic amplifier may be connected between the two devices in series (Fig. 6, not shown) its output feeding either the electromagnet winding of the second device or the primary of its supply transformer. A number of cores each with its own windings may cooperate with a single magnet member to form a selector switch. The mechanism may have the core and magnet on relatively movable members e.g. in a hoist, and two core members may be associated with a single magnet member to obtain a make-before-break system. The core may be movable instead of the magnet. A number of devices may be assembled in screened compartments of a single casing to form a push-button station.
Patent GB-657521-A (GB)
Title: A process for desulphurising hydrocarbon oils
IPC: C10G49/00
Filed: 1948-11-30
Abstract: Hydrocarbon oils are desulphurized by letting the oil flow in a thin layer over a stationary catalyst, in a reaction space through which a gas containing free hydrogen, at a temperature above 200 DEG  C. and under a pressure of at least 10 atmospheres, is passed as a single continuous phase in such excess that the gas leaving the reaction space, after removal of hydrogen sulphide, amounts to between 50 and 250 litres (calculated at normal temperature and pressure) per kilogram of oil treated.  Pressures of below 60 atmospheres, for example 20 or 30 atmospheres, are specified for treating distillate oils.  The proportion of oil to be treated may be more than 1 kilogram of oil per litre of reaction space per hour.  Catalysts specified are cobalt oxide, molybdenum oxide, tungsten sulphide and nickel sulphide, with or without carriers such as active carbon, fuller's earth kieselguhr, silicic acid, bauxite, pumice, or burnt clay.  In an example, a gas oil fraction B.P. 260-350 DEG  C.) is treated with hydrogen in the presence of a tungsten-nickel-sulphide catalyst at a temperature of 350 DEG  C. and a pressure of 50 atmospheres.
Patent GB-1072173-A (GB)
Title: Improvements in or relating to pumps for pumping liquids and apparatus for embodying such pumps
Inventor: SANDERSON PETER ROBIN
IPC: C10J3/08
Filed: 1965-07-21
Abstract: 1,072,173. Thermal regenerators. CENTRAL ELECTRICITY GENERATING BOARD. May 18, 1966 [July 21, 1965], No. 31073/65. Heading F4K. [Also in Divisions F1 and H2] In a magneto-hydrodynamic electrical power generator, air for the burner 29 is heated in a chamber 21 by molten slag or the like fed to the top of the chamber by a pump 10 (see Division F1). The solidified slag is passed through the tube 24 to the top of a chamber 25 through which the exhaust gases from the burner 26 pass and molten slag flows from the bottom of the chamber 25 to the pump.
Patent GB-855583-A (GB)
Title: High-scanning-rate-data storage device
IPC: H01P1/22
Filed: 1958-09-29
Abstract: 855,583. Photo-electric record sensing. HYDEL Inc. Sept. 29, 1958 [May 27, 1958], No. 31099/58. Class 40(3). [Also in Group XIX] Apparatus for sensing a photographic record having a number of sections I, II, III, IV, Fig. 1 consists of a lamp 24, a lens system 22, 11 and rotating mirrors 13, 13<SP>1</SP> &c for projecting successive rows of the record in turn on photo-cells 2, 4, 6, 8, successive mirrors 13<SP>1</SP> &c. being set at increasing angle "oc" to receive light from successive records II, III and IV, so that these in turn are projected on the photo-cells. The images of the records are shown at 10 in Fig. 1, the data being presented row by row to the photocells through a slit 28. If it is desired to read out only one particular row, a column of clock marks 12 is used to gate out the required row. For this purpose the clock marks are counted in counter 16 and a circuit 18 responds when the desired row is reached to open gates 20 passing the output from the photo-cells 2, 4, 6, 8. Amplifiers may be interposed. In a modification a slit 28 is placed near the lamp between the lens units 22 and 11 and the record 1 is placed near the photo-cells the slit of light scanning the record row by row. The image of the illuminated row is projected on to the photocells by a system of cylindrical lenses 30. In another modification the rotating mirrors are placed between the two units of the lens system. In the form of Fig. 3 there are two or more records 1, 1, one placed behind the other, light from the lamp passing through both and being focused by lens 11 on to planes 21 and 21<SP>1</SP> where photo-cells are provided. More than one set of photo-cells may be provided, usable alternatively to increase the number of fields of data which can be placed laterally across the record. Otherwise the record may be movable.
Patent GB-1399378-A (GB)
Title: Continuous casting installation
IPC: B22D11/128
Filed: 1972-07-03
Abstract: 1399378 Continuous casting MANNESMANN AG 3 July 1972 [2 July 1971] 31110/72 Heading B3F [Also in Divisions B8 and G3] A multi-roller drive B, C for transporting a curving solidifying slab 2 has pairs of opposed rollers, one roller of each pair being pressed on to the slab by an hydraulic cylinder-and-piston unit 4, the pairs including driven rollers whose hydraulic units are connected to a common pipe 9 supplying hydraulic liquid by way of a pressure regulator 10 controlled by a unit 11 which causes the regulator 10 to increase the liquid pressure when there is increase in the tractive force exerted by the driven pairs, e.g. caused by a damaged roller bearing. Rollers indicated in the drawing by quartered circles are driven by D.C. geared motors connected by lines 5 to an ammeter 8 which measures the sum of the current consumption. A higher consumption due to resistance to movement causes a control unit 11 to send a signal to a unit 10 which regulates the pressure of hydraulic liquid supplied by the pipe 9 to those cylinders 4 which adjust the pressure of the upper driven rollers of a horizontal roller group C. The pressure is increased to prevent slipping of the driven rollers. Instead of measuring the current consumption of all the motors, only those of one of the groups B, C may be measured. A first group A of rollers is fixed in position and not driven. Of the succeeding groups B and C, the lower rollers are fixed in position and the upper rollers are capable of adjustment by cylinders 4. The cylinders 4 not connected by the pipe 9 to the pressure regulator 10 are supplied with liquid by way of pressure regulators (not shown) each set to give a fixed pressure equal to the hydrostatic pressure of the strand core 3 at the particular height concerned.
Patent GB-211225-A (GB)
Title: Improvements in or relating to rollers for mangles, wringers, and like machines
IPC: D06F45/22
Filed: 1922-11-16
Abstract: 211,225. Green, R. C., and Brayknawt Super-Mangle Co., Ltd. Nov. 16, 1922. Rollars.-A mangling or wringing machine roller is of hollow metallic form on which a rubber or like sleeve is externally mounted and vulcanized. The roller is cast in two semi-cylindrical parts 1, Fig. 2, having end webs 2 with recesses for the spindle and blind boles 5 or feathers to receive pins or keys securing each half to the spindle 4. An intermediate web 9 also is provided. Studs 11 secure the two halves together, their heads being sunli in sockets 13 cast in the shell, and the sockets being subsequently filled in with plasterof-paris, lead, &c. A rubber or like external flexible sleeve is mounted or formed on the whole and secured by vulcanizing.
Patent GB-1478137-A (GB)
Title: Walking aid
IPC: A61H3/04
Filed: 1974-06-17
Abstract: 1478137 Walking aid HAVEN PRODUCTS Ltd 17 June 1974 [30 June 1973] 31293/73 Heading A6M A walking aid comprises a framework of two parallel right quadrilateral side frames 1 and 2 that are joined by cross-members 4, 4A and 4B so positioned as to allow the user to stand between the side frames, the members 1A and 2A of the side frames extending to form legs 1B and 2B that terminate in rolling devices, such as castors and gripping means 5 attached to the frame bridging the horizontal members 1C, 1D on each side frame 1, 2. Structures 7 and 8 supported between the side frames may be provided for carrying items. The structures 7 and 8 may be trays and baskets and may be supported at different levels; they may be clipped to the framework. The holding means may be removably attached for instance by having spigots that fit into sockets in tubes 9, and may be simple handles with grips, handles with forearm supports (6) or a U-shaped bar.
Patent GB-1493687-A (GB)
Title: Vehicular anti-skid control system
IPC: B60T13/66
Filed: 1975-07-25
Abstract: 1493687 Antiskid braking systems KELSEYHAYES CO 25 July 1975 [25 Oct 1974] 31307/75 Heading F2F An antiskid braking system includes an operator control in the form of a treadle valve 12 for selectively applying actuating pressure from a source 14 to brake applying means, a regulator 62 for providing a controlled supply of pressure, means responsive to an incipient skid condition for relieving braking pressure to prevent skidding and means responsive to a predetermined wheel rotational condition for applying pressure from the regulator to the brake applying means to re-apply the brakes at a regulated pressure. Operation of the treadle valve 12 supplies pressure to a latch valve 26 normally held open by a spring 29 and thence to a piston 16 of a relay valve 13 so that high pressure air is supplied from a source 14 to brake 15. If a skid signal is received at a control device 43 a solenoid valve 41 is opened to allow air in the relay valve chamber 34 to be dumped to atmosphere. During normal brake application a memory chamber 71 is charged via a restricted orifice 74 and the pressure therein will be related to the control pressure existing during brake application. When the chamber 34 is exhausted to atmosphere the reduced pressure is transmitted to the part of valve 26 below a diaphragm 27 but full pressure is applied above the diaphragm so the valve closes to prevent further treadle valve control pressure being communicated to chamber 34. The pressure in the chamber 71 will gradually bleed off through restricted orifices 74, 76 and when the control device 43 determines that the wheel or wheels has spun up sufficiently for the brakes to be reapplied valve 41 is released and control pressure is delivered to chamber 34 via regulator 62 line 53 and open valve 51. The pressure in the regulator chamber 61 is dependent on the load of the spring 68 and the pressure of chamber 71, and since the pressure in chamber 71 decreases during antiskid operation, the longer the time before reapplication, the lower will be the reapplication pressure, though this will then increase as the pressure builds up again. To regain manual control of the brakes treadle valve 12 is released to allow valve 26 to re-open; the treadle valve 12 may then be operated once more.
Patent GB-691560-A (GB)
Title: Improvement relating to the terminals of electrical fittings
Inventor: WHALE THOMAS HARPER
IPC: H01R13/631
Filed: 1950-12-27
Abstract: 691,560. Switch bases. TELEPHONE MANUFACTURING CO., Ltd. Nov. 30, 1951 [Dec. 27, 1950], No. 31400/50. Class 38 (v) [Also in Group XXXVI] A switch having an opening for a terminal sleeve 2 of lesser diameter than a recess immediately above it, has a coned washer 6, which is a friction fit in the recess, inserted into the sleeve 2 to enable the wire to be inserted more easily, and a screw 3 to clamp the wire in the sleeve, a nut 5 securing the sleeve to the base 1.