baber/WOPTO huggingface dataset:
Patent GB-1055839-A (GB)
Title: Laser
IPC: H01S3/101
Filed: 1964-11-19
Abstract: 1,055,839. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 19, 1964 [Dec. 23, 1963], No. 47059/64. Heading H1C. A laser has a spherical or part-spherical active element 2, Fig. 1, located at the centre of curvature of two part-spherical reflectors m 1 , m 2 , the active element acting as a lens which serves to focus light reflected from any one point on the surface of one reflector on to a corresponding point on the other reflector and back to the originating point. The active element may be ruby, GaAs or neodymiumdoped glass which is pumped by light L and is located in a substance 4 such as air or nitrobenzene. To obtain a preferred axis of oscillation in the resonant cavity formed by the reflectors, the optical symmetry of the system is perturbed by altering the polarization of light within the cavity by using a magnetic or electric field. An output beam of light is thus obtained which is scanned by appropriate control of the magnetic or electric field strength. Electric field control is used in Fig. 3 in which pairs of positive and negative electrodes 20, 25 adjacent respective reflectors m 1 , m 2  produce orthogonally related fields. An electrically-polarized filling substance 4 such as nitrobenzine is used, which in association with the pairs of electrodes 20, 25 forms two Kerr electrooptical cells in the resonant cavity. A polarizer 28 is located adjacent the active element except when polarized light is supplied by the element itself as in the case of ruby. Each reflector has a compensator which in principle is the same as a Babinet compensator, the device being formed of tapered glass or plastics sheets 24, 26 having orthogonal optic axes, the sheet 24 being suitably stressed. The two Kerr cells independently determine the preferred axis of oscillation and hence the scanning in the two planes. In a modification using orthogonal magnetic fields to determine the preferred axis of oscillation, Fig. 5 (not shown), a polarizer P R  is used if necessary for initial light polarization, and in each half of the optical resonator is provided a controllably-energized electromagnet forming a first Faraday rotator R1R and a permanent magnet system forming a second Faraday rotator R2R. Reference has been directed by the Comptroller to Specification 985,204.
Patent GB-1382585-A (GB)
Title: Gas heating apparatus
IPC: F23C99/00
Filed: 1971-10-11
Abstract: 1382585 Apparatus for heating gases F S KENWARD HEATERS Ltd 28 Nov 1972 [11 Oct 1971] 47202/71 Heading F4S A vessel 9 contains a body of liquid (preferably water) circulated by a pump 26 and heated by forced draught burner means 11. A pipe system 14 is immersed in the liquid and a gas (e.g. natural gas) is circulated through the pipes and thereby heated; and either the incoming or outgoing gas stream is utilized as the driving means for a motor 28 which drives both the pump 26 and the combustion air fan 31.  In the form shown the burner means 11 is located in a combustion chamber 10 which extends through the vessel and terminates in an upright stack 20. Liquid withdrawn from the vessel by the pump 26 (via a conduit 16) is circulated through a tubular economizer 18 located in the stack, before being returned (via a conduit 19) to the vessel. The vessel is provided with draining means (5, 6, Fig. 1) and with sighting glass (22) for the liquid level.
Patent GB-1113295-A (GB)
Title: Device for regulating the pressure medium outlet of servomotors
Inventor: ROCKSTROH FRIEDBERT
IPC: F15B11/04
Filed: 1965-11-09
Abstract: 1,113,295. Clutch control. WISSENSCHAFTLICH - TECHNISCHES ZENTRUM AUTOMOBILBAU. 9 Nov., 1965, No. 47497/65. Heading F2L. A device enables a vehicle clutch to be reengaged in two-phases when the accelerator pedal is in the idling position and in one-phase for other positions of the pedal. An electromagnet 2 is energized upon touching of a gear lever to open valve 5 and admit compressed air from an inlet 7 to a servo via connector 8 to release the clutch. After a new gear has been engaged, the electromagnet 2 is de-energized and a spring 6 closes valve 5; compressed air from the servo vents to atmosphere through an adjustable pressure relief valve 15. With the accelerator pedal in the " idle position," the compressed air escapes rapidly through valve 15 until closure of this valve when air continues to escape via bore 19 for a gentle complete engagement of the clutch. Should the accelerator pedal be depressed, a lever 13 rotates a cam 11 to open valve 15 through rod 14 for a rapid complete engagement of the clutch.
Patent GB-1199630-A (GB)
Title: Phenylethanolamine Derivatives Effective in the Treatment of Bronchospastic Conditions
IPC: C07C45/63
Filed: 1967-10-18
Abstract: 1,199,630. Phenylethanolamine derivatives. DRACO, LUNDS FARMACEVTISKA A.B. 18 Oct., 1967 [19 Oct., 1966], No. 47505/67. Heading C2C. Compounds of the general formula (R = tert.-butyl, cyclobutyl, cyclopentyl; R<SP>5</SP> = OH, C 1-5  alkanoyloxy) and their salts are prepared by (a) reducing a compound of the formula (R<SP>3</SP> = H or group replaceable by H) in the presence of RNH 2 , followed by replacement of R<SP>3</SP> if necessary; (b) reacting a compound of the formula with RR<SP>4</SP>NH (R<SP>4</SP>=H, aralkyl), followed by replacement of R<SP>3</SP>'<SP>4</SP>, if necessary; (c) reducing a compound of the formula followed by replacement of R<SP>3</SP>'<SP>4</SP> if necessary; or (d) hydrogenating a compound of the formula reacting the product with cyclobutanone or cyclopentanone, further hydrogenating the reaction mixture and replacing R<SP>3</SP> if necessary; optionally followed in each case by salt formation. The preparation of starting materials for processes (a), (b), (c) and (d) by standard methods and of ethyl 3,5-dihydroxybenzoate, 3,5- dibenzyloxybenzoic acid, 3,5-dibenzyloxybenzoyl chloride, 3,5 - dibenzyloxy - # - bromoacetophenone, 3,5 - dibenzyloxy - # - chloroacetophenone and 3,5-dibenzyloxyacetophenone is described. The compounds of the invention are bronchodilators, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1043177-A (GB)
Title: Coke production
IPC: C10B53/08
Filed: 1963-12-03
Abstract: <PICT:1043177/C4-C5/1> A process of producing coke comprises forming into shapes with a binder a body of particles of coal which is either a bituminous coal of marginal coking type, or a mixture of semi-anthracite and a low volatile bituminous coal, or a mixture of semi-anthracite and a medium volatile bituminous coal, arranging said shapes in a column comprising an upper carbonizing zone and a lower cooling zone in a vertically disposed chamber, effecting combustion of a carbonizing gas at the base of said carbonizing zone within said chamber for circulation of gaseous combustion products upwardly through said carbonizing zone, withdrawing said combustion gases from the top of said carbonizing zone, removing tar products from said gases, cooling said gases, and recirculating a portion thereof to said chamber at the base of said cooling zone for circulation upwardly through the coked shapes in said cooling zone to cool said shapes.  The body of coal particles is preferably a blend of 20-75% bituminous, 80-25% semi-anthracite coal, and is agglomerated with a carbonaceous binder such as asphalt, coal tar or other coking by-product, or with bentonite, lignosulphonate, sodium silicate, dextrin or ferrous sulphate.  The combustion gases are maintained at 2000-2400 DEG F.  Coking chamber 10 comprises carbonization and cooling zones 16, 17 and radially directed burners 14 intermediate the zones, supplied with gas and air through 18, 19.  Raw shapes fed by hopper 22 pass downwardly through 16, 17, coke product being discharged to bin 32.  Cooling gas is supplied to 17 by manifold 26 with outlet 28, and the gaseous effluent from 16 is withdrawn at 30, successively de-tarred and cooled in 37-41 and recirculated to burners 14 and manifold 26. Metallurgical coke produced contained 1% moisture, 1% volatile matter, 9.5% ash, 88.5% fixed carbon.
Patent GB-1442344-A (GB)
Title: Method of treating crankshafts
IPC: B21D3/16
Filed: 1973-10-13
Abstract: 1442344 Altering physical properties; forging crankshafts DAVID BROWN TRACTORS Ltd 17 Sept 1974 [13 Oct 1973] 47913/73 Headings B3H and B3V  Crankshafts are treated by pressing into the fillet 13 of a crankpin and/or journal 10 arcuate indenters 16 having a larger minimum indenting radius R than the radius r of the pin or journal 10 respectively. Fatigue strength is improved and the crankshaft may be straightened by indenting the central journal of a three-journal crankshaft. The crank pins are supported on an anvil 11 over the halt-surface furthest from the crankshaft axes and indented over part of the half surface nearest the axes.
Patent GB-1386486-A (GB)
Title: Heating system
Inventor: ASSELMAN G A A
IPC: F28D15/04
Filed: 1972-10-18
Abstract: 1386486 Heat pipes PHILIPS GLOEILAMPENFABRIEKEN NV 18 Oct 1972 [21 Oct 1971] 47925/72 Heading F4U [Also in Division F1] A heating system for the supply of thermal energy to the heater 2 of a stirling-cycle hot gas engine 1, comprises a series of containers 4, linked either in series or in parallel, and containing heat accumulating material, e.g. lithium fluoride; said containers being spaced apart by compressed steel wool 17 in a closed space 3. A working fluid, e.g. sodium is present in the space 3. The walls of the space 3, including the part adjacent the heater 2, and the sides of the containers 4 are lined with a porous mass 6 having a capillary structure such that in operation, sodium evaporated by heat from the containers 4, and condensed adjacent the heater, flows back toward the containers 4 in the capillary structure. The containers 4 are heated by an electric heating element 18. The steel wool 17, acts not only to space the containers 4, but also to prevent the space 3 from collapsing under pressure at high temperatures. As shown, the pressure in the containers 4 is controlled by valves 8 and 10. The steel wool also maintains the capillary structure 6 in position, thus allowing sodium condensate to flow through the capillary structure without difficulty. Since the steel wool has pores of comparatively large dimensions, sodium vapour can flow through it substantially unhindered.
Patent GB-1515559-A (GB)
Title: Temperature responsive coupling
IPC: F16D35/02
Filed: 1975-11-21
Abstract: 1515559 Viscous coupling control EATON CORP 21 Nov 1975 [29 Nov 1974] 48049/75 Heading F2W In a viscous coupling for driving a motor vehicle engine cooling fan wherein torque is transmitted from a driving disc 38 to a two-part driven housing 12, 14 by a viscous liquid in a working chamber 59 and an impact pump 62 continuously pumps liquid from the chamber 59 to a reservoir 20 formed in the housing, a valve 78 controlling the return flow of liquid from the reservoir 20 to the working chamber 59 is actuated by temperature responsive means 22 mounted on the exterior of the housing at a position radially spaced from the rotational axis of the coupling. The temperature responsive means comprises a wax filled thermostat 98 which acts through a plunger 100 on an arcuate valve plate 78 pivoted at one end to the housing and controlling flow from the reservoir 20 to the working chamber 59 at its other end. The thermostat 98 and its housing 76 are thermally insulated from the coupling housing 12 by a ring 90 and the plunger 100 which are made of insulating material. Specification 1,515,560 contains similar subject matter.
Patent GB-1361236-A (GB)
Title: Electrostatographic process
IPC: G03G15/10
Filed: 1971-10-15
Abstract: 1361236 Electro-photography XEROX CORP 15 Oct 1971 [16 Oct 1970] 48066/71 Heading G2H  A photo-conductive surface 20 is charged 21, exposed 22 and developed with a light absorptive liquid developer by means of a polar development web 24, the resulting liquid image being partially transferred (using a pressure of 0À5-8 lb/ linear inch) to a web 26, and the residual imagebearing surface is used as an electro-statographic master, i.e. is recharged, uniformly exposed 32 and redeveloped, the resulting liquid image being partially transferred to web 26. A plurality of partial transfers may be effected before redevelopment. After a plurality of redevelopments, the photo-conductive surface is cleaned 30 (in the  case of a photo-conductive drum) or discarded (in the case of a photo-conductive sheet).
Patent GB-1108100-A (GB)
Title: Apparatus for the rapid demodulation of pal colour television signals
IPC: H04N11/16
Filed: 1966-10-26
Abstract: 1,108,100. Colour television. FERNSEH G.m.b.H. 26 Oct., 1966 [26 Oct., 1965], No. 48070/66. Heading H4F. A demodulator for PAL colour television signals which eleminates errors in colour saturation caused by fluctuations in phase of the chrominance carrier, comprises switches ES1 and ES2, Fig. 1 which are periodically opened and closed during alternate and opposite half-cycles of the chro minance sub-carrier frequency to pass the signals I<SP>1</SP> and Q<SP>1</SP>, obtained by adding and subtracting the colour sub-carriers of a pair of sue cessive lines, to respective rectifier means D11, D12 and D21, D22 each developing signals representing the positive and negative peak values of I<SP>1</SP> and Q<SP>1</SP> signals, and amplitude-sensitive devices e and f each arranged to pass only the applied signal, i.e. the demodulated I<SP>1</SP> or Q<SP>1</SP> signal, of greater amplitude to an output terminal. In this manner the I<SP>1</SP> and Q<SP>1</SP> signals are reproduced with the correct amplitude regardless of fluctuations in phase up to an error in phase of 90 degrees. The switching pulses which are supplied to the switches ESI and ES2 with a phase displaced by 0 degree/ 180 degrees and 90 degrees respectively are obtained from the chrominance sub-carrier oscillator (not shown) which is synchronized by the separated burst signal. The symbol 0 degree/ 180 degrees at switch ES1 is intended to indicate that the phase of this switch is changed from line to line because with PAL signals the I<SP>1</SP> signal is reversed by 180 degrees from line to line. Each amplitude-sensitive device may comprise a pair of like transistors (Tr1 Tr2, Fig. 3, not shown) having a common emittercoupling resistor, the signal from rectifier device D11, e.g. a point-contact semi-conductor rectifier, being applied to the base of transistor (Tr1 and the signal from rectifier D12 being applied after polarity inversion (g) to the base of transistor (Tr2), the signals appearing across the collector load of each transistor being combined (h) after the signal from transistor (Tr2) has been inverted (k). The reversal of sign by the phase-inverting network (g, Fig. 3, not shown) may be effected before the rectifier D12, Fig. 5, not shown, or before the switch ES1, the switch ES1 then taking the form of a simultaneously actuated double-pole switch, Fig. 6, not shown. Alternatively a double-pole switch may be positioned in front of rectifiers D11 and D12, the switch contacts being out of phase, Fig. 7, not shown. In a further embodiment of an emplitude-sensitive device a Schmitt trigger is used, Fig. 4, not shown.
Patent GB-1268912-A (GB)
Title: A buckle for the detachable connection of two belt or strap parts
Inventor: BENGTSSON SIGURD WALTER
IPC: A44B11/22
Filed: 1969-09-30
Abstract: 1,268,912. Buckles. S. W. BENGTSSON. 30 Sept., 1969 [12 Nov., 1968], No. 48084/69. Heading E2A. A buckle comprises a U-shaped element having two projections projecting from a part 11, one projection, comprising a knob 14, engages an aperture 22 in a first end strap portion 21, and the second projection, a hook 20, selectively engages in one of a series of apertures 25 in a second end strap portion 24. The end portion 24 passes through the buckle beneath a part 16 which is part of a guide channel for the strap portion 21. A resilient tongue 17 at one end of the part 16 urges the strap portion to engage the knob 14.
Patent GB-1028016-A (GB)
Title: Improvements in or relating to a method of stressing cables in prestressed concrete structures
IPC: E04C5/12
Filed: 1963-06-04
Abstract: 1,028,016. Prestressing concrete. BAUDIN CHATEAUNEUF. June 4, 1963 [June 8, 1962], No. 48093/64. Divided out of 1,028,015. Heading E1V. A concrete structure is post-tensioned with a stranded cable 1 by forming a protuberance 7 on the cable, fitting a shell 41 about the protuberance, the shell being internally and externally screw-threaded, attaching a jack to the shell via a retaining member screwed into the shell, tensioning the cable, and tightening a locknut 42 against the end-plate 34 of the concrete structure.
Patent GB-1513477-A (GB)
Title: Mechanical support devices employing glass fibre bundles
IPC: H01H33/42
Filed: 1975-11-24
Abstract: 1513477 Linkwork CERAVER SA 24 Nov 1975 [25 Nov 1974 27 Feb 1975] 48284/75 Heading F2K [Also in Division H2] A mechanical support device and in particular an electrical insulator comprises a glass fibre support rod 1, coupling member 3 which flare outwardly from a waist portion and one of which is provided at each end of the support rod, each member 3 surrounding the rod with a clearance and a sealing substance 5 between each member and the rod. Tensile loads are fed into the insulator directly through member 3 or as shown in Fig. 1 through end caps 6. Because of the shape of members 3 the sealing material 5 will slide relative to member 3 before it slides relative to rod 1 and this will produce an increased clamping of material 5 on rod 1. A body 9 is moulded over the core. Rod 1 may be subjected to tensile stress while the members 3 are sealed thereon, Fig. 4, not shown. A number of rods 1 may be provided in a single insulator.
Patent GB-1078859-A (GB)
Title: Solar cell mounting
IPC: H01L31/0216
Filed: 1964-11-30
Abstract: 1,078,859. Photo-electric cells. T.R.W. Inc. Nov. 30, 1964 [Nov. 29, 1963], No. 48575/64. Heading H1K. A solar cell is insulated from a base member by a non-conductive member which also absorbs the stresses produced by the difference in coefficients of expansion of the cell and the base member. As shown, Fig. 3, a solar battery comprises a plurality of silicon solar cells 2 to 6. The lower faces of the cells are prepared by electroplating with nickel, silver or platinum, and then dipping them into a solder bath. The lower faces of the cells are soldered (as at 11) to a copper strip 12 bonded to an insulating member 10 of resin-bonded glass fibre which is mounted on a metal base plate 8 of aluminium, beryllium or magnesium by means of an adhesive 9 which remains pliable at low temperatures. The upper faces of the cells have coatings 14 to 18 of tinted glass to filter out infra-red and ultra-violet radiations. Conductive strip 20 interconnects the upper electrodes of the cells. In a second embodiment, Fig. 4, banks 24, 25 of cells are mounted in a shingled arrangement on the stepped surface of base member 23 from which they are insulated by members 27 to which they are attached, using an adhesive. The lower electrode of cell 35 is joined to the upper electrode of cell 31 by a wire 33. Each bank of cells comprises several cells connected together by suitable wiring (not shown).
Patent GB-1286808-A (GB)
Title: Improvements in or relating to pressure indicating devices
Inventor: GUTKOWSKI JANUSZ
IPC: G01L7/16
Filed: 1968-10-14
Abstract: 1286808 Pressure indicator BTR INDUSTRIES Ltd 14 Oct 1969 [14 Oct 1968] 48632/68 Heading G1L In a pressure gauge a low pressure is fed through an orifice 28 to operate on the end face 29 of a magnetic member 25 which acts on one side of a spring loaded annulus 5 and a higher pressure is fed through bores 30, 31 to act on the other side of the annulus 5 and the arrangement is such that when the higher pressure acting on the annulus 5 exceeds the combined pressure force on face 29, the spring 8 and magnetic attraction between a pole piece 7 and a circuit through magnet 4, the member 25 and pole pieces 18, 20, move the assembly to the left and a spring 9 moves the pole 7 and a member 3 to the right indicating pressure once a cylindrical bi-metallic strip reaches a predetermined temperature to release a frictional grip on a collar 26 on member 3.
Patent GB-1471120-A (GB)
Title: Maleimidomethyl cyclopropane-carboxylates processes for their production and pesticidal compositions containing them
IPC: C07D207/452
Filed: 1975-11-27
Abstract: 1471120 Maleimidomethyl cyclopropane carboxylates SUMITOMO CHEMICAL CO Ltd 27 Nov 1975 [5 Dec 1974] 48882/75 Heading C2C Novel maleimidomethyl cyclopropanecarboxylates of general formula wherein R 1  is H, CH 3 , F, Cl or Br; R 2  is F, Cl or Br and R 3  and R 4  are each independently H, C 1-3  alkyl, C 2-3  alkenyl, C 2-3  alkynyl, optionally alkyl or halo-substituted aryl or an aralkyl group, are prepared by reacting an alcohol, halide or arylsulphonate of general formula in which A is -OH, halogen or arylsulphoxy, with an acid of general formula or a reactive derivative thereof, e.g. halide, salt or anhydride. Amongst numerous examples the compounds 2 - methyl - 3 - ethylmaleimidomethyl - 2<SP>1</SP>,2<SP>1</SP> - dimethyl - 31 - (2 - bromovinyl)- cyclopropanecarboxylate and 2 - methyl - 3- (m-methylphenyl) - maleimido - methyl - 2<SP>1</SP>,2<SP>1</SP>- dimethyl - 3<SP>1 </SP>- (2,2 - difluorovinyl)cyclopropane carboxylate are prepared. Pesticidal compositions comprise a compound of Formula I as active ingredient together with an inert carrier.
Patent GB-1375694-A (GB)
IPC: A01B35/22
Filed: 1970-10-15
Abstract: 1375694 Agricultural implements SOUTH AFRICAN FARM IMPLEMENT MFRS Ltd 11 Oct 1971 [15 Oct 1970] 48977/70 Heading A1B [Also in Divisions B7 and F2] A chisel plough tine 51 is yieldably mounted from a toolbar 52 by spaced torsion bars 55 with pivoting end connections 56. The tine 51 may be tuned to vibrate from side to side to provide a soil shattering action. In Fig. 5 (not shown) the two torsion bars (26) are side-byside in a V-formation, instead of one above the other. In Fig. 14 (not shown) the tine is mounted on three pairs of bars. The spring rate of the torsion bars may be adjusted.
Patent GB-1357173-A (GB)
Title: Coded record reading systems
IPC: G06K7/10
Filed: 1971-10-23
Abstract: 1357173 Sensing records MARCONI CO Ltd 4 Aug 1972 [23 Oct 1971] 49358/71 Addition to to 1346055 Heading G4M  A sensing device for records having areas of different reflectivity comprises one or more optical fibres 2, the or each fibre both transmitting light to and conducting light reflected from the record. The end of the fibre(s) remote from the reading end 3 are coupled to further fibre bundles 5, 6 leading respectively to a light source 7 and photo-cell 8 on a printed circuit board 12. The coupling is preferably rotatable. and incorporates a ratchet insuring that rotation only takes place in one direction, this being said to even out the wear on the reading end 3. The reading end of the fibre 2 may be tapered while the coupling end is expanded to provide improved light focusing and coupling. The device may be moved by hand over the record or the record may be fed past the device.
Patent GB-1275116-A (GB)
Title: Improvements in or relating to biological filters
Inventor: ROBINSON KENNETH
IPC: C02F3/10
Filed: 1969-10-08
Abstract: 1275116 Biological filters HYDRONYL Ltd 24 Sept 1970 [8 Oct 1969] 49364/69 Heading C1C A biological filter comprises a bed of cylindrical packing elements each of which has vanes which extend radially from the central axis thereof to the perforated cylindrical wall 4. The elements may include vanes 7 and 8 which are angularly displaced with respect to each other. The vanes may extend the length of the elements and may be provided with recesses adjacent the perforations. The elements may be made of synthetic plastics.