baber/WOPTO huggingface dataset:
Patent GB-1265143-A (GB)
IPC: G01C5/00
Filed: 1968-02-07
Abstract: 1,265,143. Apparatus for horizontal and vertical alignment. NATIONAL RESEARCH DEVELOPMENT CORP. Feb. 25, 1969 [Feb. 7, 1968], No. 6100/68. Heading G2J. [Also in Division G1] A method of establishing the vertical position of an object in relation to a horizontal line comprises projecting a light beam on to a vertical surface, adjusting the beam until it is reflected along its incident path and relating the position of the object to the horizontal beam. The horizontal position of an object may be established by reference to a vertical beam formed by deflecting the horizontal beam through 90 degrees by a prism. As shown the light beam 11 is produced by a laser having three adjustable levelling feet and a mirror 12 mounted on a pendulum 13 to reflect the beam back through the laser 10 to a photo-electric cell 14 connected to a meter and amplifier unit 15 measuring beam intensity, the maximum reading of which defines a horizontal beam. The pendulum 13 comprising a bob 24 which has adjustable weights 26, 27 and is housed within walls 29, 30 to form the piston of an air-damper, is suspended by a ligament 25 to form the piston of an air-damper, is suspended by a ligament 25 from a bridge 23 supported by pillars on a turn-table 20 pivotally supported on a base 35.having three adjustable levelling feet. The mirror 12 is rendered vertical by appropriately adjusting the feet of the base 35 in conjunction with a circular level 39 and weights 26, 27 so that a horizontal reference beam reflected by the mirror 12 registers a constant meterreading upon rotation of a pendulum turn-table 20 through 180 degrees. Alignment detectors for various instruments may be placed in the beam 11 and may comprise four rectangular photo-sensitive devices arranged to form a cross-shaped space therebetween, Fig.4(not shown) or arranged so that each device faces a surface of a pyramid-shaped mirror which may have the beam directed thereto by a corner cube formed from mirrors (50), Fig. 6 (not shown), and a semi-reflector (51). The devices are appropriately coupled together to form two pairs each of which is connected with the two halves of a centre-tapped resistor in a bridge connected to a centre zero meter. Liquid or eddy current damping may be employed for the weights 26, 27 and an alignment telescope,autocollimator or a rodolite may replace the laser 10.
Patent GB-1266274-A (GB)
IPC: C12M1/34
Filed: 1970-04-09
Abstract: 1,266,274. Microbiological heating. WARNERLAMBERT CO. April 9, 1970 [April 17, 1969], No. 16962/70. Heading C6F. A diagnostic reagent for the identification and differentiation of Staphylococci e.g. as between S. aureus and S. epidermis is based on mannitol fermentation and coagulase detection, and consists of a bibulous material containing in one form or another (i) a composition comprising a nutrient capable of supporting the growth of microorganisms, D-mannitol and a chemical indicator which produces a colour change in the presence of acid degradation products which are formed by the fermentation of mannitol, and (ii) a coagulable material from which substantially all glucose has been removed. A test strip may have 6 zones viz. A the coagulase detection composition (ii) applied on a dextran coating, B hydrophobic barrier, C the mannitol fermentation composition (i), D a second hydrophobic barrier, E untreated and F impregnated with an identifying dye (specified). Alternatively, composition (ii) can be superimposed on composition (i) in a single first zone. Composition (i) typically includes D-mannitol (or D, L-mannitol), beef extract, protein hydrolysate, sodium chloride, a thickening agent, especially dextran, and an indicator such as phenol red, brom thymol blue or brom cresol purple. The coagulable material may be lyophilized human plasma (or rabbit plasma) or fibrinogen, freed from glucose by dialysis. The hydrophobic barrier is preferably polymerized methyl methacrylate.
Patent GB-1266785-A (GB)
IPC: G01B9/021
Filed: 1969-03-11
Abstract: 1,266,785. Holographic interferometry. NIPPON KOGAKU K.K. March 11, 1969 [March 14, 1968], No. 12726/69. Heading G2J. In a method of double-exposure holographic interferometry to measure the difference between two states of an object, a hologram H. G. is formed by interference between an information beam from object S with a first reference beam (from mirror M 1 ) and then at a later point in time by interference between the information beam and a second reference beam (from mirror M 2 ) at a different angle from the first; the two images of object S are reconstructed simultaneously and are superimposed thus forming interference fringes indicative of the difference between the two states of the object; compensation for lateral displacement between the two states, and to ensure coincidence of the two images, is obtained by tilting one of the reconstructing reference beams. Preferably the two reference beams are polarised perpendicular to each other. Measurement can be made by moving the hologram plate H. G. to give a shift in the fringes. Alternatively the reconstructed images can be formed at a Savart Plate S. P. in the focal plane of a lens O 2 .
Patent GB-1288999-A (GB)
IPC: C07J7/00
Filed: 1970-12-07
Abstract: 1288999 Halopregnenes F HOFFMANN.LA ROCHE & CO AG 7 Dec 1970 [11 Dec 1969] 57932/70 Heading C2U The invention comprises compounds of Formulµ I and II wherein R 1  is C 1-6  alkanoyl; R 2  is Cl or Br; X is halogen; and n is 0, 1, 2, 3, 4 or 5. Compounds I are prepared from compounds II by reaction with phosphorus halides. Unless this reaction is effected in the presence of an inorganic base, some 3-unsubstituted-6-halo- A<SP>2,4,6</SP> by-product may be formed. Compounds II are prepared by dehydration of the corresponding 5α-hydroxy-4,5-saturated compounds using thionyl chloride and pyridine. 3# - Acetoxy - 5α - hydroxy - 16# - chloromethyl - 16α,17α - epozypregnane - 6,20 - dione (VI) is prepared from 3#-acetoxy-16#-methyl- 16α,17α - epoxypregn - 5 - en - 20 - one (V) by the sequence: V # 3# - acetoxy - 5#,6#; 16α,17α - diepoxy - 16# - methylpregnan - 20- one # 3# - acetoxy - 5α - hydroxy - 16# - methyl- 16α,17α - epoxypregnane - 6,20 - dione # 3#- acetoxy - 5α,17α - dihydroxy - 16 - methylenepregnane-6,20-dione#VI. Compounds I may be saponified and oxidized to yield the corresponding 3#-ols and 3-ones respectively, and the latter may be converted to further products as described in Specification 1,289,020.
Patent GB-1289483-A (GB)
IPC: G01B7/06
Filed: 1969-12-12
Abstract: 1289483 Measuring a condition of boiler tubes electrically APPARATKEMISKA A B AKA 12 Dec 1969 60770/69 Heading G1N A condition, for example the temperature or wall thickness, of a boiler tube 1 is determined by supplying current from a constant current source 10 to terminals 5, 6, on the tube and measuring the voltage drop between terminals 7, 8. The heat transference through a boiler tube wall to water inside depends inter alia on the boiler scale and wall corrosion, and hence a portion of wall 4 adjacent a source of heat may attain excessive temperatures liable to cause damage. Current from the source 10 divides via the paths 3, 4,1, 3, 2,1 and the voltage between 7 and 8 is indicative of the resistance (and hence the temperature and/or wall thickness) at the part 4, prior measurements under isothermal conditions having been made. The temperature of the part 2 which follows the internal water temperature is measured for example by thermocouple, this temperature being used to evaluate the main measurements. The water temperature is measured separately. The supply terminals may be used also for the measurement, and the supply and measurement terminals may be longitudinally disposed on the tube. Several pairs of supply and measurement terminals may be provided, and measurements may be made across several adjacent tubes Fig. 2 (not shown). The measurements may be made manually or automatically by cyclic switching, and abnormal conditions may indicated by an alarm and result in shutdown.
Patent GB-1294873-A (GB)
IPC: F41A9/61
Filed: 1969-08-11
Abstract: 1294873 Field carriages RHEINSTAHL HENSCHEL AG 11 Aug 1969 [3 Sept 1968] 40138/69 Heading F3C In an armoured vehicle having a hull 1, a rotatable gun turret 2, and an ammunition conveyer 7, the ammunition bunker 6 is centrally located between the hull and the gun turret, and is secured to inner rotatable ring 8 of an azimuth bearing, so that the bunker is movable only about a vertical axis.
Patent GB-1298000-A (GB)
IPC: H01B1/08
Filed: 1970-03-16
Abstract: 1298000 Semi-conductor devices YESHIVA UNIVERSITY 16 March 1970 [18 March 1969] 12484/70 Heading H1K A device exhibiting switching characteristics at liquid nitrogen temperatures comprises a material composed of substantially 50 wt. per cent Fe 2 O 3  and 50 wt. per cent Fe 3 O 4  arranged between two electrodes. The material has a critical temperature of -153‹ C. above which it is permanently conductive but below this temperature it exhibits an I-V characteristic with a negative resistance portion. The material is produced by mixing the constituents, compacting and placing between the electrodes. It is stated that impurities do not readily render the device inoperative, it is not necessary to produce perfect crystals, the structural integrity of the material appears to make no difference and the devices are resistant to radiation and mechanical damage.
Patent GB-1302875-A (GB)
IPC: A47J27/57
Filed: 1969-12-04
Abstract: 1302875 Cooking vessels D POWELL 26 Nov 1970 [4 Dec 1969] 59176/69 Heading A4A A cooking vessel is divided into two compartments, one of which is closed and is to contain the heating liquid with which it is filled through an aperture and the other of which is open and is to contain the commodity to be heated. In the embodiment illustrated the vessel is a jug comprising a closed annular compartment 10 and an open cylindrical compartment 11. The compartment 10 is closed by an upper wall 12 in which there is a filling aperture 13 provided with a whistle cover or release valve 14, and also a pouring spout 15 for the commodity to be heated. In a second embodiment, Fig.2 (not shown), the vessel is formed with a lower closed compartment (24) with a filling aperture (25) and an upper open compartment (23).
Patent GB-1304691-A (GB)
IPC: B21D53/04
Filed: 1969-01-21
Abstract: 1304691 Making heat exchangers ALUMINIUM FOILS Ltd 20 Jan 1970 [21 Jan 19691 3316/69 Heading B3A [Also in Division F4] In a method of making an aluminium heat exchanger assembly, e.g. a radiator, of the kind comprising a stack of pressed sheet metal plates 24 joined together in pairs to define therebetween passageways 27, 28 for the flow of coolant alternating with spaces 15 for the flow of air, cold pressure welding is used (a) to join pairs of plates 24 together at their periphery 29 and (b) to join adjacent pairs together at their flanged and dished header portions 25, 26. Corrugated fins 16, 17 are secured by cold pressure welding, spot welding, seam welding or resistance welding to the sides of the pressed plates facing the air flow spaces 15. The crests 18 of the fins in each air flow space may abut one another, as shown, or be staggered with respect to one another (see Fig. 6, not shown). The heat exchanger assembly is closed by end plates (30, 31, Figs. 2 and 4) which include a drain tap 19 and coolant inlet and outlet connections 10 and 12. The fins may be provided with louvres (32, Fig. 8) and with projections (33) for locating the fins centrally relative to the passageways 27, 28 defined by welded pairs of pressed plates.
Patent GB-1306931-A (GB)
Title: Holographic beam coupler
IPC: G02B5/32
Filed: 1969-03-26
Abstract: 1306931 Holographic beam coupler R C A CORPORATION 20 March 1970 [26 March 1969] 15956/69 Heading G2J A holographic beam coupler 102, Fig. 1 is made by sequentially recording a plurality of interference pattern components each formed by a pair of unmodulated beams (B i  B REFERENCE ), where B REFER-   EHCE  is different for each i and the angles of incidence # i  of the beams B, and the common angle of incidence of the beams B REFERENCE  are significantly different from each other. The wavelengths of the beam pairs may be the same or different, and the beams may be parallel beams of plane waves, or convergent or divergent beams of spherical waves. The device 102 is used to couple a number of information-modulated readout beams b i , Fig. 2 (corresponding to the beams B i ) which are simultaneously directed on the coupler 202 at angles # 1 . such that : wavelength of beam b i /wavelenght of beam B i  = Sin # 1 /Sin # i  ; a coupled beam 204 comprising a combination of 1st-order diffraction components emerges from 202 at an angle depending on the common angle of incidence of the beams B REFERENCE . The above device may be applied to a holographic colour beam coupler recording system wherein unmodulated red, green and blue beams are each made to interfere with a divergent reference beam of its own colour to form a coupler (304), Fig.3 (not shown); three such coloured beams, each having an intensity which has been spatially modulated by respective black and white transparencies, are directed on the reverse side of the coupler (402), Fig.4 (not shown) to produce a spatially modulated white beam which converges on to an image plane (412).
Patent GB-1311688-A (GB)
Title: Calculating machines
IPC: G06C7/10
Filed: 1970-04-29
Abstract: 1311688 Calculating machine ADDMASTER CORP 29 April 1970 20640/70 Heading G4B A ten-key keyboard calculating machine includes a pin carriage which is indexed stepby-step as digits are set up order by order, and the add and subtract keys are arranged to shift the carriage by one further step to bring the lowest order setup digit into alignment with the units order of the printing and totalling mechanism prior to the add or subtract operation. The invention provides a further key, corresponding to a fraction of a unit, and means for preventing the carriage shift by one further step on depressing the add or subtract key if the further key has been used in setting up the number. As shown, the carriage 18, Fig. 8, after setting-up a number not containing a fraction, will come to rest with the units order of the number adjacent fraction printing wheel 34. Consequently, depression of add key 13 or subtract key 14, Fig. 10, is arranged to act through slide 65, stud 63, bellcrank 60, Fig. 7, and hook 57 to depress zero key 12a and thus shift the carriage one step to bring the units order of the number adjacent the units printing wheel 37. If, however, the number includes the fraction "¢", key 16 is depressed and through extensions 52, 53 and the "5" key, sets the "5" pin and shifts the carriage to bring the set "5" pin adjacent the fraction printing wheel 34. An extension 59 of a stem 54, also depressed the "¢" key, engages surface 90 to rock hook 57 clear of zero key extension 56 so that depression of the add or subtract key will not now result in any further shifting of the carriage. Depression of stem 54 by the "¢" key 16 results in a latch 82, Fig. 8, holding the stem 54 depressed until the carriage is returned to "home", stud 81 then triggering the latch. The latch 82 also holds stem 54 when the latter has been depressed by the add or subtract keys acting through hook 57; after its initial operation, therefore, hook 57 is held clear of extension 56, because of extension 59 co-acting with surface 90, and so repeated depressions of add key 13 can be made for repeated addition without further shifting of the carriage. The carriage may be shifted to deal with successively higher orders of the multiplier by use of the zero key. A "X" key (15), Figs. 1 and 2 (not shown) may be latched in depressed condition during this repeated addition to disable the carriage return mechanism 52, 96, 54, 78, Fig. 8. The hook 57 is also held clear of extensions 56, 59 when the carriage is in its "home" position by linkage, Fig. 3 (not shown); totalling operations via keys 13, 14 are thus permitted.
Patent GB-1315961-A (GB)
Title: Coiled metal tubing
IPC: B21D7/08
Filed: 1969-04-23
Abstract: 1315961 Coiling tubes CLARKE CHAPMANJOHN THOMPSON Ltd 22 July 1970 [23 April 1969 15 Aug 1969 20 Nov 1969] 20817/69 40992/69 and 35498/70 Heading B3E A tube 3 is bent into helical form by forcing it longitudinally through a die block 6 having a curved channel 44 whose cross-section conforms to the cross-section of the tube. An hydraulic feed device 2 forces the tubing 3 through a guide block 4 to the curved die block 6 mounted on a fixed support 10. The feed device can comprise a pair of hydraulic cylinders acting on a cross-head provided with a collet for gripping the tubing. Alternatively the tubing may be fed continuously by pressurized rollers bearing on the tubing. The guide block has a tapered entry portion 24, Fig. 4, of its bore 28 which corresponds to the cross-section of the tubing and is slightly oversize to avoid jamming. The die block 6 comprises upper and lower sections which together form a part-circular or helical channel for forming the tubing; in the case of a part-circular channel, means are provided to divert the tube leaving the die block into a helix. The die block can be modified to receive tubing having a pair or diametrically opposed fins. For adjusting the diameter of a coil, a movable die peice 70, Fig. 11, is provided adjacent the exit of the die block 6. This die piece is actuated by an hydraulic ram under servo control from a feeder resting against the first loop of the formed coil. Alternatively the die block is tilted by the insertion of a wedge to control the radius of curvature (Fig. 12, not shown). In another embodiment, Fig. 13, a wedge block 76 is attached to the die block 6 so that the leading end of the tubing rides up on the block and forms a helix the pitch of which can be varied by vertically sliding the block or changing to a larger size.
Patent GB-1327048-A (GB)
Title: Antibiotics
IPC: C07D501/22
Filed: 1971-04-19
Abstract: 1327048 Purification of cephalexin GLAXO LABORATORIES Ltd 19 April 1971 [11 March 1970] 11754/70 Heading C2A A process for the purification of cephalexin, i.e. 7# - (D - 2 - amino - 2 - phenylacetamido)- 3-methylceph-3-en-4 carboxylic acid, containing impurities, which comprises contacting an aqueous acid solution of said cephalexin with acetonitrile in quantities such that the volume of acetonitrile present is at least 70% of the volume of water, bringing the pH of the solution to from 3À5 to 4À5 by the addition of a base, e.g. ammonia or a triethylenine, so that a crystalline acetonitrile solvate of cephalexin forms, separating the solvate thereby obtained, suspending the solvate in water at a temperature of at least 58‹ C., allowing said crystalline solvate to dissolve therein, and recovering pure, substantially acetonitrile free, crystalline cephalexin from said solution. Reference has been directed by the Comptroller to Specification 1,174,335.
Patent GB-1333912-A (GB)
Title: Lighting control arrangements
IPC: H05B37/02
Filed: 1969-10-20
Abstract: 1333912 Transistor bi-stable and timing circuits MULLARD Ltd 5 Nov 1970 [20 Oct 1969] 51287/69 Heading H3T [Also in Division G1] In a system which switches lighting on or off according to the ambient light level, a photodiode or phototransistor D1 provides an amplified output to devices Q4, Q5 having different threshold levels whose outputs are combined so that if both thresholds are exceeded the lighting is switched off, whereas if neither is attained the lighting is switched on. The response of the system in the MID region depends on whether the level was previously HIGH or LOW. This variable MID level response is provided by a backlash circuit (Fig. 3, not shown) including the operational amplifiers Q4, Q5, Q8. The output of Q8 is the basic output from the controller, which is modified by a timing circuit C4-R12 so that transient dull conditions, e.g. clouds passing across the sun, do not actuate the lighting system. The output from the photodiode D1 which may be employed in the photovoltaic mode, is amplified by the variable gain operational amplifier Q2 whose gain (RI adjustment) sets both the upper threshold on Q4 and the lower threshold on Q5. Below its threshold Q4 gives a negative saturation output, above the threshold positive saturation Q5 gives a positive saturation output below its threshold, negative saturation above. To perform a cloud recognition function, the output from the R12-C4 network is monitored by the FET Q9. With a high output from Q8, diode D2 conducts and capacitor C4 charges to line potential. Hence the amplifier Q10 has a positive saturation output, which energizes control relay RR to turn on the lighting. With a low output from Q8, diode D2 is cut off and capacitor C4 begins its discharge. After a preset time interval amplifier Q10 switches to negative saturation, and control relay RR switches off. if a high output from Q8 returns during the discharge period the timer is reset. ln this way, the lighting is not switched off until bright conditions have persisted for fifteen minutes. Pilot lamps B1-B5 monitor the output voltages of the various operational amplifiers and hence give a visual indication of the state of the circuit at any time.
Patent GB-1342397-A (GB)
Title: Carrier with rolling elements
IPC: A61H3/04
Filed: 1971-05-21
Abstract: 1342397 Castors DROVE PRECISION ENG CO Ltd 21 April 1972 [21 May 1971] 16177/71 Heading A4U [Also in Divisions A6 B7 and F2] A carrier, particularly a walking aid, comprises a structure 1 to 6 having at its lower part a plurality of rolling elements 19 at least one of which is associated with braking means 16 which are normally held out of braking condition but which can be moved into braking condition by downward loading on the structure. The rolling elements can be wheels or castors mounted by spring loaded sliding elements 10 in the ends 5 of the structure grips 8, adjustable for height, can be provided in the upper part of the structure.
Patent GB-1346610-A (GB)
IPC: A61K9/20
Filed: 1971-07-02
Abstract: 1346610 Tablet cores DAIICHI SEIYAKU CO Ltd 2 July 1971 5110/73 Divided out of 1346609 Heading A5B A multi-layered core for a multi-stage release pharmaceutical tablet comprises at least one layer containing an active pharmaceutical ingredient and at least one other layer, the core having a plane face on one side and on the opposite side a face in the form of a truncated cone or a truncated dome. The cores may be used in the multi-stage release pharmaceutical tablets of the parent Specification 1,346,609.
Patent GB-1355346-A (GB)
Title: Catalysts and process using them
IPC: B01J21/12
Filed: 1970-08-20
Abstract: 1355346 Isomerizing alkylbenzenes IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Aug 1971 [20 Aug 1970] 40154/70 Heading C5E [Also in Division B1] Alkyl benzenes are isomerized in the presence of a catalyst which comprises a support of silica, silica/alumina or aluminosilicate on the surface of which alumina has been deposited. In particular one or more xylenes containing less than an equilibrium amount of paraxylene are isomerized to produce a product containing a greater concentration of paraxylene. Reaction conditions are 200-600‹ C., 1-500 atmos. pressure, the reaction being carried out in the liquid or gas phase optionally in the presence of steam or ammonia. In the examples a mixture of paraxylene, metaxylene and toluene is isomerized.