baber/WOPTO huggingface dataset:
Patent GB-1376512-A (GB)
Title: Production of moulded articles
IPC: C08G8/00
Filed: 1972-09-14
Abstract: 1376512 Moulding filled phenol formaldehyde resins FORD MOTOR CO Ltd 14 Sept 1972 [17 Dec 1971] 42684/72 Heading B5A [Also in Division C3] A moulded article is produced by pulverizing a filler-containing thermoset material to an average particle diameter below 70 microns, dry blending the resultant thermoset particulate filler with a particulate, thermosettable phenolformaldehyde novolak resin having an average particle diameter below 70 microns and which may be partially filled with a particulate filler; and moulding the resultant blend at a temperature of 300-425‹ F. at a pressure in excess of 1500 p.s.i.; the total particulate filler content of the moulded product being 5-50% wt. with said thermoset particulate filler providing at least 50% wt. of the total particulate filler. The preferred filler is wood flour and the preferred novolak resin has a molecular weight of 600-2000 and a melting point of 185-230‹ F. Preferably the dry blend is passed through an extruder heated to a maximum temperature above the melting point of the novolak resin and below the curing temperature thereof, e.g. 194-240‹ F., and the resultant extrudate is then particularized before being injection moulded at pressures of 10,000-20,000 p.s.i., or compression moulded at pressures of above 1500 to 15,000 p.s.i. In Examples 1-5 pulverized scrap from mouldings of a wood flour filled-phenol HCHO thermoset novolak resin and an unfilled particulate phenol-HCHO thermosettable novolak resin in various weight ratios and particle sizes are extruded, then pelletized and then moulded on a thermoset reciprocating-screw injection-moulding machine. In Example 6 a dry blend of the above pulverized scrap and a thermosettable novolak resin partially filled with wood flour is extruded and the extrudate ground to a powder which is then compression moulded.
Patent GB-927398-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: HOLLOWAY DENNIS GODSON
IPC: H04B17/40
Filed: 1959-12-16
Abstract: 927,398. Supervising repeaters. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Dec. 12, 1960 [Dec. 16, 1959], No. 42817/59. Class 40 (4). In a supervisory arrangement for a carrier telecommunication system, a plurality of repeaters fed over a signalling cable from a control station include arrangements whereby when power is first applied the repeaters are energized successively and on energization of a repeater a signal generator therein is effective momentarily to transmit to the control station a signal indicative of the correct working of the repeater. Power on a constant current basis is transmitted from terminal station T over a two-wire line to repeaters A1, A2 &c., each of which incorporates a two-way transistorized amplifier A with its associated filters LP1, LP2 and HP1, HP2 for the GO and RETURN paths respectively. A resistor R across the line (in each repeater) has a value approximately equal to the total resistance of the succeeding repeaters so that initially only relay Y in A1 is energized by the feeding current. Y is made slow to operate so that a capacitor in transistorized blocking oscillator BO is charged before contacts Y1 open and remove resistor R from across the line. When this occurs the capacitor discharges so as to operate the oscillator, the frequency of which changes as the capacitor potential falls, and a signal is transmitted to the control station via transformer TTR and amplifier A. At the same time a similar capacitor in repeater A2 is being charged so that when its relay Y pulls-up, a signal from A2 will be sent to the control station, and so on. Supposing that a short circuit is present in the line, then the voltage shown on meter M at the control station will rise progressively to a value equal to the potential drops across each repeater up to the fault: for an open circuit the reading will be the sum of the voltages for the repeaters up to the penultimate plus that across resistor R in the last repeater before the fault. Thus the repeater beyond which a fault occurs can be identified by the number of signals returned when power is first applied and the nature of the fault can be determined from the meter reading. If a transmission fault had occurred, the signals would not be returned from the faulty repeater and succeeding ones although the final voltage would be the same as if all the repeaters were functioning normally. In another arrangement (Fig. 3, not shown), power for some of the repeaters is fed from one or more intermediate points of the system. Specification 914,788 is referred to in the Provisional Specification.
Patent GB-1536842-A (GB)
Title: Treatment of textile materials
IPC: D06B21/00
Filed: 1975-12-30
Abstract: 1536842 Steaming chamber; bleaching MATHER & PLATT Ltd 30 Dec 1975 [3 Oct 1974] 42861/74 Headings D1L and D1P Textiles 11, 21 are steamed in a chamber 10, 20, operating at or above atmospheric pressure, and then immediately passed through a wash tank 13, 23 continuously fed with water heated to above 100‹C prior to egress from the chamber. The apparatus may be used for bleaching cotton fabric, in which case the textile is impregnated with NaOH soln. prior to passage through the chamber or for dye fixing.
Patent GB-891074-A (GB)
Title: Cigarette snuffer
IPC: A24D1/10
Filed: 1960-12-13
Abstract: 891,074. Cigarette holders and snuffers. LEHV, M. L. Dec. 13, 1960, No. 42928/60. Class 130. A cigarette 12 has threaded thereon before or after sale a metal or other heat-resistant foil sleeve 16 having a lapped seam, the over-lapping part of which has score lines 25 to allow its central portion to be bent out to form a tab by which the sleeve is slidable along the cigarette to extinguish it.
Patent GB-1483728-A (GB)
Title: Process for the preparation of an ester of an alkyl-or alkenyl succinic acid and a polyvalent alcohol
IPC: C10L1/198
Filed: 1973-09-13
Abstract: 1483728 Esters of long chain alkenyl- or alkyl-succinic acids SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 11 Sept 1974 [13 Sept 1973] 43047/73 Heading C3P [Also in Division C5] Esters of a C 50-700  alkyl- or alkenyl-succinic acid are produced by (a) heating the acid with a polyvalent alcohol at above 100‹ C. in the presence of a diluent, (b) cooling the reaction product, and either during or after said cooling adding a water-immiscible solvent for the ester, and (c) thereafter washing the product with a water/mono-alcohol mixture containing less than 60 wt. per cent of the mono-alcohol. The acid starting material may be produced by reacting a polyolefin, especially polyisobutylene, with maleic anhydride, followed by hydrolysis and optionally hydrogenation, and is preferably produced by the method of Specification 1,483,729. In examples, the polyvalent alcohol is pentaerythritol, the diluent is xylene, the added solvent is white spirit, and the washing mixture is water/isopropanol. Use.-Lubricant and fuel additives.
Patent GB-1038486-A (GB)
Title: A process for the preparation of alkali metal aluminium acid orthophosphates
IPC: C01B25/45
Filed: 1963-10-31
Abstract: Complex crystalline alkali metal aluminium acid orthophosphates of the general formula MxAlyHz(PO4)8.0-5H2O where M is sodium and/or potassium, and x, y and z are numbers of from 1 to 15, 2 to 4, and 0 to 15, respectively, with the sum of x+3y+z equal to 24, are prepared by the steps of: (a) preparing a conveyable liquid reaction mixture containing sodium and/or potassium, aluminium and phosphorus constituents in stoichiometric proportions within the above formula and a free water content between 9.5% and 44% by weight of the liquid reaction mixture which comprises reacting a trivalent aluminium compound and at least one sodium and/or potassium compound with phosphoric acid in an agitated reaction zone maintained between 40 DEG  C. and the boiling temperature of the reaction mixture, while maintaining the total free water content substantially constant; (b) retaining the reaction mixture in the reaction zone until reaction is complete, which is when all the solid reactants are dissolved, while maintaining the total free water content substantially constant; (c) passing the reaction mixture into a crystallization zone having a kneading-conveying type of agitation and comprising a pre-established bed of crystalline alkali metal aluminium acid orthophosphate of like composition maintained between 60 DEG  C. and 200 DEG  C., whereupon the liquid reaction mixture crystallizes; and (d) recovering crystalline product from the crystallization zone.  The process may be used to prepare sodium aluminium acid orthophosphate tetrahydrate, NaAl3H14(PO4)8.4H2O, when the liquid reaction mixture contains one gram atom of Na and three gram atoms of Al for each eight gram atoms of P and a free water content between 14% and 25% by weight of the liquid reaction mixture, the mixture after reaction passing into an agitated crystallization zone comprising a pre-established bed of the above compound.  As defined in the Specification, alkali metal refers to sodium and potassium, alkali metal compound to sodium carbonate and hydroxide and any potassium compound which has organic or inorganic cations and which will ionize to give a free potassium cation (the oxide, hydroxide, carbonate and nitrate being preferred), trivalent aluminium compounds to aluminium oxide and hydroxide (the latter being preferred), and phosphoric acid to any phosphoric acid which comprises, or which hydrolyses to form, the orthophosphate ion (orthophosphoric acid being preferred).
Patent GB-1129217-A (GB)
Title: Windscreen wiper control apparatus
IPC: B60S1/08
Filed: 1967-09-22
Abstract: 1,129,217. Windscreen wipers. GENERAL MOTORS CORP. 22 Sept. ,  1967 [3 Oct., 1966], No. 43130/67. Heading A4F. [Also in Divisions G3, H1 and H2] A windscreen wiper control system comprises a fluid flow control device for selectively directing fluid under pressure to a pressure responsive device in a predetermined sequence to energize an electric wiper motor intermittently. In the illustrated embodiment the fluid control device comprises two fluid amplifiers 24, 28, connected to a vacuum source 84, such as an internal combustion engine intake manifold, and controlling the movement of a piston 52 for actuating a switch 18 in the electric supply circuit of a wiper motor 10. On turning a control knob 20 a valve V is opened to permit air to flow from an inlet 78 to the fluid amplifier 28, and a valve 74 is adjusted in a conduit 72 connecting an outlet 80 of the fluid amplifier 24 with a chamber 66 beneath diaphragm 62 coupled by a rod 60 to the piston 52. A switch 14 is also closed by the control knob 20 to energize the wiper motor 10 via the switch 18. The output from the fluid amplifier 24 flows initially through a passage 26 to bias the fluid amplifier 28 so that its output flows via a passage 38 and conduit 40 to move the piston 52 and diaphragm 62 so that a pin 85 on the rod 60 opens the switch 18. The motor 10 continues to be energized via a switch 16 until the wiper has completed one cycle of operation when a follower 98 engages in a cam 22, driven by the motor 10, to open the switch 16. When the piston 52 reaches its lower extremity of travel it uncovers an inlet 100 to a conduit 48 through which air passes to bias the fluid amplifier 28 so that its output passes via a passage 30 and conduit 32 to the space beneath the piston 52 to raise the latter. The rate of upward movement of the piston 62 to close the switch 18 is controlled by the rate at which air is permitted to flow into the chamber 66 beneath the diaphragm 62 under the control of the valve 74.
Patent GB-1249749-A (GB)
Title: A method of manufacturing a knife blade for the cutting mechanism of mowers
IPC: A01D34/14
Filed: 1970-09-10
Abstract: 1,249,749. Knife blades for mowers. EISENWERK MILSPE DER SCHAFFGOTSCH BERGWERKSGESELLSCHAFT. 10 Sept., 1970 [11 Sept., 1969], No. 43316/70. Heading A1F. [Also in Division B3] The cutting edges of a knife-blade for use on the reciprocating knife-bar of a mower are formed by one grinding operation. In this instance, a twin knife-blade is produced from a blank having two blade portions 1 joined to a common back 2 provided with rivet holes 3. The blade edges 4 are bent downwards and are ground to give coplanar flat faces 6, offset from the rest of the blank. Embossments 5 may be provided projecting from the underside with a flat ground face 7,'and thus the faces 6, 7 will form a flat bearing surface for the blade to rest on the ledger plate. A rear portion la of the blank may be bent upwards to facilitate the fixing of the blade sections. This method can be used to produce single or multiple blade sections.
Patent GB-1286001-A (GB)
Title: Visual system computer
IPC: G09B9/30
Filed: 1969-09-02
Abstract: 1286001 Simulators SINGER CO 2 Sept 1969 [5 Sept 1968] 43354/69 Heading G2J In an aircraft simulator an actual filmed flight sequence is distorted by an image alteration system 26 in order to simulate other sequences. The alteration system comprises, Fig.3 (not shown) two anamorphic lenses (44, 46), an image rotator (40) and a zoom lens (38), the definitive variables being #, #, # and P o  and are such that the # value becomes undefined when the lenses are orthogonal. An attitude computer 60 determines the simulated vertical and lateral displacements h, d relative to the actual flight path from the path computed from operation of the controls 56 and an optical transformation computer 64 determines the necessary values of #, #, p and P o . A level detector 68 senses the # value and when # exceeds a predetermined limit it operates a relay 72 to open switches 74 and 78 and close switch 80; a sample hold circuit 76 then supplies the last stored value of # to the alteration system 26 whilst a constant voltage V is supplied at the # input.
Patent GB-1400813-A (GB)
Title: Process and apparatus for cooling hot-rolled rods
IPC: B21C47/26
Filed: 1972-09-19
Abstract: 1400813 Cooling wire SUMITOMO METAL INDUSTRIES Ltd 19 Sept 1972 [13 Oct 1971 (2) 5 June 1972 (2)] 43410/72 Heading C7N Continuous hot-rolled steel wire is formed into a series of overlapping loops 3 which are carried by conveyer chains 7 through a cooling zone comprising ducts 20 and openings 22 supplying air from below and the sides respectively. The series of loops is given a serpentine motion by vertical rollers 4, 4' and a shaking motion by horizontal rollers 10 which reciprocate in the longitudinal direction. Other methods of vibrating the loops include the use of eccentric rollers, Figs. 4 and 5 (not shown), chain links moving in the opposite direction to the chains 7, Figs.6 and 7 (not shown), a series of short lengths of conveyer chains 7 which can move at different speeds, Fig.8 (not shown), and horizontal rollers some of which have widened ends, Figs. 9 and 9A (not shown).
Patent GB-1246120-A (GB)
Title: A sealing arrangement on a propeller shaft
Inventor: GOLTEN SIGURD
IPC: B63H23/36
Filed: 1968-09-12
Abstract: 1,246,120. Shaft seals. S. GOLTEN. 12 Sept., 1968 [16 Sept., 1967], No. 43496/68. Heading F2B. Sealing means for a propeller shaft comprises one or more rings disposed on the shaft between the propeller hub 2 and the stern tube 3, the or each ring comprising a layer 16 of rubber or neoprene sandwiched between annuli 14 of P.T.F.E. A bronze annulus 15 is interposed between the two inner annuli 14 and the outer annuli 14 sealingly engage respectively a surface 13 on the hub 2 and a surface 10 on a ring 7 secured by a bellows 4 of rubber or neoprene to the stern tube 3.
Patent GB-1523285-A (GB)
Title: Playback apparatus
IPC: G11B21/20
Filed: 1975-10-23
Abstract: 1523285 Supporting playback transducers RCA CORPORATION 23 Oct 1975 [12 Nov 1974] 43527/75 Heading G5R In apparatus for playing back a rotating grooved disc record, e.g. a video disc playback system using varying capacitance as described in Specification 1,392,202, a first pivot 31 supports one end of an arm 18 which during playback extends generally parallel to the surface of the disc for a first portion 28 of its length and bends towards the disc at its other end where a second pivot 33 supports a pickup holder 34 which extends substantially parallel to the first portion 28 of the arm 18.
Patent GB-1196278-A (GB)
Title: Chairs for School Rooms and Conference Rooms
Inventor: LEONHARD THEA
IPC: A47C7/56
Filed: 1967-09-25
Abstract: 1,196,278. Desks and chairs combined. T. LEONHARD. 25 Sept., 1967 [23 Sept., 1966], No. 43586/67. Heading A4H. A pillar 3 secured to the floor 2, e.g. by engaging rails, has a laterally projecting support 4 carrying a seat 5 and a back rest 6, and a writing top 7 is supported at the upper end of the pillar and projects away from the seat. The height of the seat may be adjustable and the support 4 may be pivoted around the pillar and/or the seat is rotatably arranged on the support. The seat may be tiltable. The top 7 may be arranged symmetrically or asymmetrically with respect to the pillar and may be foldable. The pillar may support two seats and two tops arranged symmetrically and a receptacle (12) may be arranged between the two seats. An arm rest (13) is pivoted to the pillar.
Patent GB-1260569-A (GB)
Title: Apparatus for coating surfaces by means of a spray gun
Inventor: KNIGHT HOWARD RICHARD JAMES
IPC: G05B19/06
Filed: 1969-09-03
Abstract: 1,260,569. Coating apparatus. CARRIER ENG. CO Ltd. 18 Aug., 1970 [3 Sept., 1969], No. 43669/69. Headings B2F and B2L. Apparatus for coating surfaces of a succession of articles of different shapes and sizes by a spray gun reciprocable along a path in a first plane during movement of the surfaces in past the gun in a second plane at right angles to the first plane comprises means for detecting the shape and size of the surfaces, a variable profile cam to control the movement of the gun in the first plane and control means connected to the sensing means to actuate cam profile adjusting means to maintain the position of emission of the spray gun at a predetermined distance from the surface being sprayed. As shown the cams comprise channel members 15, 27 each having one end pivoted at 25 and the other end movable by a pneumatic piston 30, 31 or 22. The piston and cylinder arrangements can move the cams to the positions 27a, 27b or 15a under the control of photoelectric sensing means. A flexible metal strip 32 is located in the bottom of the channel to provide a continuous transfer from one member to the other. The metal strip is kept under tension by a spring 33. In a modification (not shown) the channel is divided into three sections and a further pneumatic cylinder is provided to move the pivot point between the two upper sections. A spray gun 4 is carried by an arm 82 attached to a piston rod 79 on a pneumatic cylinder 77. The spray gun support is reciprocated vertically and during normal operation the spray gun is horizontal but movement of the roller 84 by the cam surface causes a difference in inclination of the spray gun.
Patent GB-1255099-A (GB)
Title: Regulated power supply
IPC: H02J7/34
Filed: 1969-09-04
Abstract: 1,255,099. Battery charging of standby supply systems. BURROUGHS CORP. 4 Sept., 1969 [9 Sept., 1968], No. 43772/69. Heading H2H. A power supply system comprises a battery, a load and a battery charging means effective to charge the battery and supply at least a portion of the load simultaneously, together with control means responsive to a condition of the battery whereby to connect the battery to, or disconnect it from, the charging means in accordance with the battery condition. A battery 59, has two sections 61, 63 each section being provided with a charging circuit which includes a secondary winding on a transformer 49, a full wave bridge rectifier and a switch (57 or 69) which is responsive to the pressure of the gas generated in the respective batteries during charging, the operation of the switches 57, 69 being to connect the batteries to the battery charging circuits when the gas pressures in the batteries are low thus indicating low states of battery charge and to disconnect the batteries from the charging circuits when the gas pressures are high, that is, when the batteries are fully charged. When an A.C. supply is present at terminals 45, 47 a relay 71 is energized to open contact 77. The potential at point 85 is then zero and the states of a multivibrator 83 and flip-flop 87 are such that relay 91 is energized to close contacts 93, 95. Thus the batteries are charged and the essential and non-essential loads at terminals 97, 99 and 101, 103 respectively supplied from the A.C. supply. On failure of the A.C. supply the relay 71 is de-energized, contacts 77 close and the conditions of the devices 83, 87 become such that relay 91 is de-energized. Contacts 93, 95 then open to disconnect the non-essential loads, the supply to the essential loads on terminals 97, 99 being maintained by the batteries.
Patent GB-1205054-A (GB)
Title: Film-projectors
IPC: G03B1/42
Filed: 1967-09-27
Abstract: 1,205,054. Cine projection apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 27, 1967 [Sept.30, 1966|, No.43938/67. Heading G2E. A cine film transporting and guiding device for use in a projector comprises a sprocket 1, toothed at 3, and journalled in bearing support 2 having a flat reference surface 5 formed thereon, and a detachable pressure pad 4 for holding the film in contact with the teeth 3, the correct radial spacing of pad 4 from the sprocket being determined by means of a snap spring connection holding the pad against surface 10 of the pad against abutment 9 of support 2 for correct axial positioning. The snap connection consists of leaf springs 11, 12 urging a tilted frame 13 downward into engagement with a recess in the upper surface of pad 4. Camming surfaces 17 on the pad ride over lugs 16 on support 2 and retain the pad axially, these lugs preventing the pad from touching teeth 3 during insertion or withdrawal.
Patent GB-1023504-A (GB)
Title: Light-sensitive photographic materials
IPC: G03C1/42
Filed: 1962-11-21
Abstract: 1,023,504. Photographic silver halide materials. EASTMAN KODAK CO. Nov. 21,1962 [Nov. 21, 1961], No. 43959/62. Heading G2C. Photographic material, developable by the action of water alone, comprises a silver halide emulsion of which the halide is predominantly bromide a 3-pyrazolidone developing agent and an alkaline material in the emulsion or an adjacent layer, and a desensitizer in the emulsion layer or in a layer coated thereover. The material may also contain ascorbic acid or a salt thereof. The alkaline material may be sodium metaborate, an alkali metal hydroxide or a tetra-alkyl ammonium hydroxide. Desensitizers specified are certain nitrobenztriazoles, 2, 3-dimethyl-6-nitrobenzthiazolium p-toluene sulphonate, 1-methyl-2(pnitrostyryl) - 6 - ethoxyquinolinium p-toluene sulphonate, 2-(p-diethylamino-phenyliminomethyl)- 1, 6-dimethyl quinolinium chloride and 2-(pdimethylaminophenyliminomethyl)-3-ethyl benzthiazolium ethosulphate. In the examples, the adjacent layer also contains sucrose, sodium sulphite, potassium bromide and 5-methylbenztriazole.
Patent GB-1114964-A (GB)
Title: Process for producing l-isoleucine
IPC: C12P13/06
Filed: 1966-10-03
Abstract: L-Isoleucine is produced by culturing a microorganism selected from the microorganisms belonging to the genus Aerobacter, Brevibacterium, Corynebacterium, Micrococcus, Sarcina, or Serratia in a nutrient medium containing DL-a -hydroxybutyric acid or a salt thereof under aerobic conditions and isolating L-isoleucine from the fermentation broth.  Suitable salts are the ammonium, sodium, potassium and calcium salts, and the acid or salt is generally used in an amount of 0.5-5% by weight of the culture medium.  The culture is suitably carried out at a temperature of about 25-40 DEG  C. in a neutral or weakly alkaline medium.  Specified microorganisms are Aerobacter cloaca, Brevibacterium ammoniagenes, Brevibacterium divaricatum, Brevibacterium immarcophilum, Brevibacterium saccharolyticum, Brevibacterium flavum, Brevibacterium lactofermentum, Brevibacterium roseum, Corynebacterium equi, Corynebacterium lilium, Corynebacterium callunae, Corynebacterium acetoacidophilum, Micrococcus varians, Sarcina lutea and Serratia marcescens.