baber/WOPTO huggingface dataset:
Patent GB-320347-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23H3/02
Filed: 1928-07-09
Abstract: 320,347. Bennis, A. W. July 9, 1928. Firebars and grates.-In a furnace grate of the kind in which the firebars are arranged in forced draught air supply troughs, the firebars 20, 21, 22, Fig. 1, have cast within them one or more tubes 25, 26, 27 of metal having a tensile strength greater than that of cast iron, the inlet orifices of the tubes 25 being arranged adjacent to the inlet for the forced air supply to the grate. The tubes 25, 26, 27 engage with one another, as shown, to form a continuous conduit of increasing diameter communicating at the rear with passages 30 in a block 29 adapted to discharge into the trough 23 supporting the firebars or to the rear of the furnace grate. As shown in Fig. 4, hot air passes from a duct 36 through tubes 37 into the troughs 23 while cold air is delivered from a duct 38 through tubes 39 to the tubes 26 in the bars 20. In a modification the cold air duct is connected to the tubes 25 by flexible pipes. Fig. 8 shows a further modification in which supplementary air supply tubes 45 are arranged in the air inlet 24 of the trough and are connected at 48 to the downturned ends 49 of the tubes 25 of the bars. Fig. 12 shows a modification in which the firebars 51 are mounted transversely in the troughs and have chambers 55 which are interconnected by tubes to form a tortuous air conduit extending through the firebars in the trough. Specification 198,727 is referred to.
Patent GB-898209-A (GB)
Title: Improved grain separating machine
IPC: B07B1/42
Filed: 1959-06-11
Abstract: 898,209. Separating solid materials. SATAKE, T. June 11, 1959 [July 9, 1958; Nov. 1, 1958], No. 20095/59. Class 117. Granular material is fed from a hopper 8 on to a coarse surfaced plate 1 inclined both longitudinally and laterally and having longitudinally extending grain collecting troughs 5, 6 for the different types of grain in the feed. The plate is supported above a base on a framework 2, 2<SP>1</SP> by pairs of pivoted support arms 3, 4 and lateral oscillations are imparted to the plate by a shaft 18 and eccentric 7. Each arm 4 is pivoted at one end to a trunnion block 9 which can be raised and lowered to vary the inclination. The blocks are threaded to spindles 10 and raised or lowered by turning the spindles manually via a shaft 12 and handle 13. The plate oscillates along an arcuate path, the tangents to which are at an angle greater than the lateral inclination of the plate. Fig. 6a shows a separating plate 1 with a perforated grid 26 on its upper surface; Fig. 6b shows a separating plate comprising depressions 27, and Fig. 6c a plate 1 with a grid of intermeshed wires 28. The plate may have ridges arranged on its upper surface, and diverging from the highest part of the plate towards the lowest.
Patent GB-380203-A (GB)
Title: Compressed air motor
IPC: F01B17/02
Filed: 1931-07-14
Abstract: 380,203. Self-driving machines. HOLLAND, G., 7, Ella Street, Harpurhey, and FIRTH, F., 453, Collyhurst Road, Collyhurst, both in Manchester. July 14, 1931, No. 20189. Drawings to Specification. [Class 10.] A self-driving machine comprises a cylinder containing two pistons with piston-rods and connecting-rods, the latter being connected to two crank pins on a common shaft. The arrangement is such that towards one end of the stroke the two pistons are separated by a space which is put into communication with a reservoir of compressed air by means of a valve opened by the forward piston when near the end of its stroke. At the other end of the stroke the pistons come together, and the air is expelled from between them past a non- return valve back to the reservoir.
Patent GB-1090514-A (GB)
Title: Catalytic isomerisation of olefins
IPC: C08F4/48
Filed: 1966-05-06
Abstract: 2-Olefins are produced from 1-olefins by contacting 1-olefin with a catalyst system which is a combination of a non-aromatic tertiary amine which is a bridgehead amine or chelating diamine, and an N-lithio amide of formula <FORM:1090514/C4-C5/1> in which R1 and R2 are each hydrogen, C1 to C20 alkyl radicals, or C2 to C20 alkenyl radicals, or in which R1 and R2 jointly comprise a C4 to C10 polymethylene radical.  The isomerization may take place at a temperature in the range 0-200 DEG  C., using for example 0.1% to 10% catalyst by weight of reaction mixture. Examples relate to conversion of octene-1 to cis -2 and trans-2; 4-phenylbutene-1 to 1-phenylbutene - 2 and 1 - phenyl - butene - 1; 4-vinylcyclohexene - 1 to 3 - ethylidene - cyclohexene - 1 and ethylbenzene; and hexadiene-1,5 to hexadiene-2,4.ALSO:An isomerization catalyst system comprises a combination of a non-aromatic tertiary amine which is a bridgehead amine or a chelating diamine with an N-lithio amide of formula <FORM:1090514/B1-B2/1> in which R1 and R2 are each a C1 to C20 alkyl radical, a C2 to C20 alkenyl radical or hydrogen, or R1 and R2 jointly comprise a C4 to C10 polymethylene radical forming a ring with the N-atom. An excess of the non-aromatic tertiary amine may be used.  The N-lithium amine may be made in situ by reaction of a primary or secondary amine with a hydrocarbon lithium compound. Examples relate to:-butyl lithium + N,N,N1,N1-tetramethylethylene diamine + diethylamine; butyl lithium + N,N,N1,N1-tetramethylethylene diamine + piperidine; butyl lithium + N,N,N1,N1-tetramethylene diamine + diethylamine; butyl lithium + sparteine + diethylamine.
Patent GB-995733-A (GB)
Title: Reinforced panels with tongued and grooved edges
Inventor: CRABB ERNEST
IPC: E04C2/22
Filed: 1961-06-05
Abstract: 995,733. Laminates. PORON INSULATION Ltd. Sept. 4, 1962 [June 5, 1961], No. 20226/61. Heading B5N. [Also in Division E1] A slab of foamed polystyrene is provided in its surface with a reinforcement comprising sheets 1, 2 of expanded aluminium bent and spot-welded together at A, B, D. Spacing elements of wire may be inserted between the sheets and the slab may be provided with both tongued and grooved edges or with either tongues or grooves to allow the interfitting of adjacent slabs. Specification 961,132 is referred to.
Patent GB-148342-A (GB)
Title: Improvements in and relating to carburettors
IPC: F02M17/36
Filed: 1920-07-09
Abstract: 148,342. Adam, P. A. G. April 29, 1919. [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-Fuel passes to the main spraying-nozzle 18 through a tube 6 in a well 5, the tube having a restricted fuel inlet 11 and being connected to the atmosphere; air mixes with the fuel in this tube before passing through the holes 12. A slow-running nozzle 22, Fig. 2, is placed in a second well, air being admitted to the chamber around the nozzle by a horizontal pipe. Air is also admitted to the bore of the nozzle through the hole 32. The tube 6, and nozzle 22 are mounted so as to be removable vertically, the engine running on the nozzle 22 while the tube is out and vice-versa. The small air inlets 11, 32 may be controlled by valves. The throttle valve 19 has two passages 35, 36 for the control of the main and auxiliary nozzles, the passages being designed to ensure continuity of supply of mixture when changing from one nozzle to the other. In a modification, an adjustable pipe is placed opposite the main fuel nozzle, air being drawn through by the suction. A flap fixed to the wall of the mixing chamber and bearing on the inside of the throttle valve prevents the formation of a pocket between the valve and its seating.
Patent GB-844551-A (GB)
Title: Process and plant for the manufacture of porous plastic plates
IPC: H01M50/414
Filed: 1958-06-25
Abstract: 844,551. Moulding battery separators &c. ACCUMULATOREN-FABBIK A.G. June 25, 1958 [June 29, 1957], No. 20322/58. Class 87(2). [Also in Group XXXVI] Porous plates particularly for use as accumulator separator plates are prepared by applying a layer of powdered synthetic resin by a hopper 5 to a supporting sheet 2 of paper, textile, fibre fleece or like flexible material, and passing the coated sheet through a furnace 7 to sinter the powder, and shaping and cooling the material in a water cooled press 15, 16, e.g. to form ribs R as illustrated in Fig. 2. A hydraulically operated cutter 18 may be provided for cutting the moulded material into plates. The sheet material is fed intermittently through the plant by a conveyer belt 10 and rolls 17, the operation of the belt 10, rolls 17, hydraulic press 15, 16, and cutter 18 being regulated by an electrical control system. The sheet 2 may be stripped from the sintered resin on leaving the press or it may be allowed to remain on the finished plates. The synthetic resin may consist of polyvinyl chloride, acetate, or carbazole, polystyrene, a polymer of acrylic acid or methacrylic acid or an ester thereof, or polyethylene or other polymer. Specification 814,216 is referred to.
Patent GB-673600-A (GB)
Title: Improvements in and relating to sound meters
IPC: G01H3/00
Filed: 1950-08-16
Abstract: 673,600. Measuring sound intensity. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 16, 1950. [Aug. 26, 1949] No. 20336/50. Class 118 (ii). A device for restoring the calibration of a sound-level meter comprising a microphone, amplifier and output meter comprises a feed-back circuit connected to the output meter and energizing a loudspeaker which is placed in a predetermined position in relation to the microphone. The gain of the amplifier is adjusted until the system is at the oscillation threshold ; alternatively, it may be adjusted to obtain a predetermined reading on the meter. The feedback circuit includes an attenuator and may also include a band-pass filter to allow the re-setting to be carried out at a definite frequency. Fig. 2 illustrates the means holding the microphone 6 and loudspeaker 1 in their predetermined, relative positions. When it is desired to use the device the microphone is inserted into the holder through the rubber ring 16.
Patent GB-1071125-A (GB)
Title: Improvements in or relating to band cutters
Inventor: ROBINSON FRED
IPC: B26F1/38
Filed: 1965-05-13
Abstract: 1,071,125. Machinery guards. CO-OPERATIVE WHOLESALE SOCIETY Ltd. May 11, 1966 [May 13, 1965], No. 20348/65. Heading F2J. . A guard for the exposed part of the band 14 of a band cutter comprises a pair of parallel members 17, 18 pivotally mounted on a supporting block 23 and having a pair of upright arms 19 lying adjacent the band 14 and rounded base portions 21 which are adapted to rest on a cloth 15 being cut. A spindle 26 connecting the ends of the members 17, 18 acts as a counterweight. The members 17, 18 are preferably made of transparent plastics material but may be formed of metal rods. In a modification, the members 17, 18 converge towards the base portions 21.
Patent GB-745090-A (GB)
Title: Improvements in and relating to magnetron amplifiers
IPC: H03B19/10
Filed: 1953-07-22
Abstract: 745,090. Magnetron amplifiers. GENERAL ELECTRIC CO. July 22, 1953 [July 25, 1952], No. 20364/53. Class 39 (1). A frequency multiplier comprises a magnetron in which the anode segments form two groups, each of the segments 28, 29 of one group extending over, in the case of a frequency doubler, twice the angle of each of the other segments, 30-33. The segments 30-33 are connected to the output tuned line 36 and the segments 28, 29 to the input tuned line 34. In another embodiment there is only one anode segment in the first group and two anode segments in the second group. The input circuit is connected between the single anode segment and the cathode and the output circuit between the two anode segments. The magnetron is operated just below the point of oscillation. Specification 745,089 is referred to.
Patent GB-1011708-A (GB)
Title: Pumping unit
IPC: F04C11/00
Filed: 1963-05-22
Abstract: 1,011,708. Rotary pumps. SUNDSTRAND INTERNATIONAL CORPORATION S.A. May 22, 1963, No. 20367/63. Heading F1F. A pumping unit for supplying air-free oil to the burner nozzles of an oil-fired furnace or boiler, comprises a casing 10, Fig. 1, housing first and second gear-crescent type rotary pumps 16, 22 mounted on a common driving shaft 29. Oil admitted to an inlet space 12 within the casing passes through a screen 14 into a reservoir 15 connected to the first pump 16 through a kidney-shaped inlet port 21, Fig. 2, in a spacer plate 23. The oil on being discharged from the first pump passes through passages 31, 32, to the interior of a burner shut-off valve 33, as described in Specification 703,051, connected by a passage 34 to the inlet space 12. Oil from the reservoir 15 then passes through an inlet 28 to the second pump 22 and the discharge from this pump passes into a pressure conduit 35 controlled by the valve 33 and connected to the burner nozzle. To prevent air being entrained in the oil to the second pump, the spacer plate is formed with duct 40, 41 extending oppositely from the port 21 and connected with the reservoir 15. The size of the ducts are such that they are not large enough to meet the suction demand at the port 21 so that when oil flows through the duct 41 vacuum exists in the duct 40 whence oil is drawn into the reservoir up to the level of the upper end of the duct 40 to provide a head of oil h to the inlet of the second pump. The pumps 16, 22, together with the spacer plate 23 and end-plates can be rotated as a single unit with respect to the shaft. If through 180 degrees, the duct 41 will be uppermost with the inlet 28 located laterally on the other side of the shaft. The head h will then be the height of the upper end of the duct 41 above the inlet 28. With the pumps rotated through 90 degrees clockwise from the Fig. 2 position, the ducts 40, 41 will be disposed laterally on either side of the shaft 29 with the inlet 28 pointing downwards so that ends of the ducts 40, 41 will still be at a height h above the inlet 28. Thus in every position of the pumps from the Fig. 2 position to 180 degrees clockwise position, air will be excluded from the second pump inlet.
Patent GB-297917-A (GB)
Title: Improvements relating to thermostatically controlled gas valves
IPC: G05D23/02
Filed: 1927-08-02
Abstract: 297,917. Radiation, Ltd., Yates, H. J., and Howlett & Co., Ltd., M. Aug. 2, 1927. Thermostats.-A thermostatically controlled gas valve of the kind employing the relative expansion of a rod within a tube, employs an adjustable tapered thrust piece between the rod and the valve stem. The ends g of the valve stem e and expanding rod f, are tapered to receive a thrust piece h, which is adjusted by means of a threaded rod i and knob j. Specifications 21015/09 and 293,810 are referred to.
Patent GB-139541-A (GB)
Title: Improvements in automatic firearms
IPC: F41A5/36
Filed: 1918-12-10
Abstract: 139,541. Fairfax, H. W. M. Gabbett-. Dec. 10, 1918. Machine guns. - Consists in the combination with a recoiling barrel, which actuates a piston to compress air in a cylinder on recoil, of means for tapping the compressed air at any desired point in the recoil to open the breech; the breech closing and barrel return being effected either by springs or by compressed air. In the form illustrated, the barrel A is connected to a piston E working in a fixed cylinder H communicating through a non-return valve L with a telescopic tube M in which an air reservoir may be fitted. The tube M communicates through a slide-valve N with a cylinder 0 in which works a piston P urged forward by a spring P<1> and adapted to operate the breech mechanism, which is of the type described in Specification 138,135. In the position shown, the forward end of the actioncylinder 0 is open to the atmosphere via O<1>, N<3>, and N<1>. On recoil of the barrel, an arm V on a slidable rod T controlling the valve N strikes a fixed tread-down spring stop W, and displaces the valve relatively to the barrel to admit compressed air from the tube M to the cylinder, whereby the piston P is forced rearwardly, compressing spring P' and opening the breech. The barrel is returned by the spring Z<1> compressed during recoil. The piston P after opening the breech strikes an arm U on the rod T and displaces the valve N to exhaust, whereupon the spring P<1> returns the piston and closes the breech. A modification is described in which the spring P is dispensed with, a valve system being provided to admit compressed air to either end of the cylinder P to perform both the opening and the closing movements of the breech mechanism. It is further stated that by a suitable extension of the valve system, the barrel-return spring Z' may be dispensed with, and the return be effected by compressed air; the same result may be obtained by increasing the size of the cylinder O, and providing a stop to limit the rearward travel of the breech mechanism.
Patent GB-812940-A (GB)
Title: Process for investment casting
IPC: B22C7/02
Filed: 1956-07-03
Abstract: 812,940. Patterns. CLEVERDON, D. June 28, 1957 [July 3, 1956], No. 20513/56. Class 83 (1). In investment casting, the pattern is formed of a polysulphone resin, preferably butenepolysulphone.
Patent GB-771856-A (GB)
Title: Improvements in or relating to the production of hexachlorocyclopentadiene
IPC: C07C17/10
Filed: 1955-07-15
Abstract: Hexachlorocyclopentadiene is obtained by directly chlorinating pentane using barium sulphate as a catalyst, using a large excess of chlorine.  An example is given in which small cylinders of barium sulphate are used with 1 vol. of pentane to 60 vols. of chlorine, the rate of flow being controlled.  The use of an inert support coated or impregnated with barium sulphate, is also mentioned.  Minor quantities of by-products are obtained.
Patent GB-398321-A (GB)
Title: Improvements in and relating to apparatus for raising and supporting motor and other vehicles
IPC: B66F7/02
Filed: 1932-07-20
Abstract: 398,321. Hand-trucks. M•RON, F., 74, Boulevard Excelmans, Paris. July 20, 1932, No. 20534. Convention date, Aug. 3, 1931. Addition to 347,252. [Class 108 (i).] Relates to improvements in the construction described in the parent Specification for raising and supporting motor vehicles which embodies a frame mounted on a wheeled base and raised or lowered by four vertical screws driven through gearing by an electric motor. The frame 1 is automatically controlled in its limiting positions by stops on the frame cooperating with switches in the motor circuit at the top and bottom of one of the uprights 8. The screws 6 are rotated by the motor 9 through a gear train 10 driving a shaft 11 geared to shafts 12, 13, these shafts 11, 12, 13 being connected to stub axles provided with bevel pinions meshing with bevel pinions at the lower end of the screws 6. The bevel pinions are enclosed in fluidtight casings 22 filled with oil, the stub axles projecting from the casings and being connected by couplings 23 to the shafts 11, 12, 13. Lifting-jacks 16 are slidably mounted on members 14 which are adjustably supported on guides 24 secured to the tracks 2. Each guide 24 is provided with an opening 25 normally closed by a flap 26 which may be hinged about a pivot 27 to uncover the opening and permit the tracks to be moved towards one another. The base 30 is maintained level and held against accidental movement by jacks 18. The shaft 11 may be driven through a chain 20 by a hand-operated shaft 19, a clutch being provided to change the drive from hand to motor or vice versa. Removable gangways are provided at each side of the frame 1 to facilitate work on a vehicle, the gangways comprising boards having hooks engaging the tracks 2. When the frame is to be raised to a great height, the screws are formed from large laterally-threaded tubes.
Patent GB-384611-A (GB)
Title: Improvements relating to the ventilation of dynamo electric machines
IPC: H02K9/10
Filed: 1932-07-21
Abstract: 384,611. Cooling dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and YOUNGMARK, F. A., Siemens Works, Stafford. July 21, 1932, No. 20656. [Class 35.] A closed-circuit system for a machine 1, having one external fan 10 adapted to be brought into operation at will in addition to one or more fans on the rotor shaft, includes an intake chamber 9 connected to the inlet of both fans and to an exhaust chamber 7 and one or more trunk-ways 11 leading from the intercommunicating ducts of the machine and adapted to be connected either to the exhaust chamber or to the external fan outlet 12. In the form shown, the air circulated by the internal fans reaching the exhaust chamber 7 from the channels 2, 3 returns to the intake 9 through the coolers 8. When the fan 10 is operating, air from the intake 9 reaches the channels 4, 5 from the trunk-way 11 and returns to the exhaust chamber 7 through ducts 2, 3, 6, but when it is not operating the door 13 is swung back to cover the outlet 12 of the fan 10 and to enable air entering the trunk-way 11 from the ducts 4, 5 to pass into the exhaust 7. When only one internal fan is used, the external fan may be connected to the opposite end of the machine, also the duct 6 may be omitted, in which case the trunk-way 11 need not be bifurcated.
Patent GB-1274421-A (GB)
Title: Disperse monoazo dyestuffs of the aminoazobenzene series
Inventor: SIEGEL EDGAR
IPC: C09B62/53
Filed: 1971-04-19
Abstract: 1,274,421. Monoazo dyes. FARBENFABRIKEN BAYER A.G. 19 April, 1971 [31 Jan., 1970], No. 20693/71. Heading C4P. New monoazo dyes, free from SO 3 H groups, of formula wherein R 1  is a C 1 -C 3  alkyl group and R is H or as R 1  are prepared by azo coupling and may be used to colour synthetic fibres, in particular polyamide fibres, in red shades.
Patent GB-1085414-A (GB)
Title: Containers for photographic slides or film strips
IPC: G03B21/64
Filed: 1966-05-10
Abstract: 1,085,414. Slide and film strip holders. C. KUMEI and J. EGUCHI. May 10, 1966 [Aug. 3, 1965; Oct. 7, 1965], No. 20695/66. Headings G2A and G2J. A container for photographic slides or film strips comprises slide or film strip holding parts 4 pivoted to a reflective surface 6 and normally lying flat against the surface, a cover 1 overlying the parts. When the cover is opened, the parts 4 are pivoted so that light reflected by the surface passes through the slides or film strips in the holders. The parts 4 are attached to the cover 1 so that they are pivoted up automatically when the cover is opened. Several containers may be arranged as an album, the parts 4 of one container being attached to the underside of the surface 6 of the container immediately above. In another embodiment, Figs. 3, 4 (not shown) parallel strips (4') are disposed on the inner surface of a reflective sheet (12) which is foldable about its centre, the strips (4') having a shallow "V" shape and each forming a complete enclosure for a film strip or slide. In a further embodiment Figs. 5, 6 (not shown), the holding parts (4") are part of a sheet having multiple folds, which sheet is foldable inside a reflective surface (16) also having multiple folds.