baber/WOPTO huggingface dataset:
Patent GB-1233538-A (GB)
IPC: G01S3/14
Filed: 1967-06-20
Abstract: 1,233,538. Radio direction-finders. EMI Ltd. 18 June, 1968 [20 June, 1967], No. 28494/67. Heading H4D. [Also in Division G4] In a radio direction-finder, signals are derived from two aerials 1, 2 having their planes of maximum response mutually perpendicular, the derived signals are applied to Hall-effect elements in a device 6 fed also from a relativelylow frequency oscillator 7, and output signals from the device produce a bearing indication. The output of a phase discriminator 24 controls a motor 23 driving the armature 18 of device 6 which acts as a resolver, the angular displacement of the armature indicating bearing # of the signal incident on loops 1, 2. Resolver 6 incorporates balanced modulators: Hall elements 15, 16 are mounted orthogonally on stator 17 and armature 18 has othogonal pairs of ferrite polepieces 19, 20. Windings 21 are fed directly from oscillator 7 and windings 22 after a 90 degree phase shift. It is demonstrated that the output of a filter 25 is proportional to sin(wt+ #-#<SP>1</SP>) where #<SP>1</SP> is the angular displacement of the armature, and control is such that #-#<SP>1</SP> = 0. In another embodiment Hall-effect modulators are combined to form a goniometer, Fig. 3 (not shown).
Patent GB-1234551-A (GB)
IPC: B66F19/00
Filed: 1969-01-21
Abstract: 1,234,551. Height adjustment units. SHACKLETON ENG. Ltd. 20 Jan., 1970 [21 Jan., 1969], No. 3432/69. Heading B8J. A height adjusting unit, particularly for use in supporting the keel of a ship, comprises a base-plate 11 and a wedge 13 slidable thereon and co-operating with a reaction member in the form of a nut 15 with support surfaces 15c complementary to the wedge surfaces 13b<SP>1</SP>. A screw 17 is threaded into the nut 15 for initial height adjustment of a headpiece 21. The headpiece 21 comprises a rectangular support 21a slidable on a mounting block 21b with an anti-friction coating. The block 21b has a part-spherical surface 21e complementary to the upper end of the screw 17. The screw 17 provides a raise of 5 inches under no load, while the wedge 13 provides a drop of # inch under full load, being controlled by adjustment bolts 27 threaded through base flanges 11b. The device may be adjusted by fluid actuated means (not shown) instead of by the adjustment bolts 27.
Patent GB-1250994-A (GB)
IPC: C08F8/14
Filed: 1969-02-12
Abstract: 1,250,994. Lubricants; fuels. LUBRIZOL CORP. 12 Feb., 1969 [13 March, 1968], No. 7642/69. Headings C5F and C5G. [Also in Division C3] Useful as sludge-dispersing additives in lubricants and fuels is the product obtained by contacting (A) at least one oil-soluble ester prepared by reaction of a mono- or polycarboxylic acid and an aliphatic polyhydric alcohol wherein the carboxylic acid moiety of the ester contains at least fifty aliphatic carbon atoms exclusive of the carboxyl carbon atoms and the alcohol moiety contains up to forty aliphatic carbon atoms, with (B) at least one organic epoxide, the amount of (A) and (B) in the reaction mixture being such that the ratio of equivalents of alcohol present in the ester to equivalents of epoxide is 1 : 0À05 to 1:5. Examples disclose mineral and diester lubricating oil, kerosene, gasoline and diesel fuel containing one of the following products: an ester prepared by reacting polyisobutenylsubstituted succinic anhydride with polypropylene glycol or pentaerythritol, that has been contacted with propylene oxide; and an ester prepared by reacting chlorinated polyisobutylene/acrylic acid with sorbitol or pentaerythritol, that has been contacted with propylene oxide or ethylene oxide. Conventional optional additives (specified) may also be present.
Patent GB-1251709-A (GB)
IPC: G06F11/22
Filed: 1969-05-28
Abstract: 1,251,709. Checking circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 May, 1969 [31 May, 1968], No. 26981/69. Heading G4H.  A logical circuit LC is checked by selecting a pattern of digital signals PW 1  from a read only store DM by a selector SO, passing them through the circuit LC and feeding the result to a result register AR where in the case of at least one pattern, if the result is correct, the contents of the whole register select the address of the next pattern and, if the result is incorrect, the contents select the address of an alarm word. The pattern of signals is preceded by an address part which is transferred direct from the buffer register BR to position 1 of the result register AR formed of flip-flops. On Fig. 1 word W 1  has a pattern PW 1  and an address part AW 1  of 01 and the result sent to position 2 can be a "1" or a "0", which is one digit of a multi-digit result of a logical operation (e.g. addition, majority detection, parity check). Thus register AR can hold 010 or 011. If 010 is held, an error indicating word F is selected and an alarm L triggered. If 011 is held, word W2 is selected and the process repeated. Only simple errors are taken into account, a double error could produce a "1" at position 2. In a modification (Fig. 3, not shown) an extra digit is added to each word to indicate whether or not the result selects the address of the next word. If not, only the address part of the word selects the next word. The circuit LC has two outputs thus indicating for possible addresses: 00,01,10,11. In another modification (Figs. 4 and 5, not shown) each word has an identifying bit and a change bit in which the pattern is passed through circuit LC as before, a bit is calculated from the identifying and change bits, and this calculated bit compared with the identifying bit of the selected word to trigger an alarm or proceed with the new word depending on the comparison. In another modification (Figs. 6 and 7, not shown) each word has a first additional bit and a second additional bit whereby the second additional bit is held in a comparator, and the first additional bit of the next word must be equal thereto if no error has occurred.
Patent GB-1253002-A (GB)
IPC: C07D471/04
Filed: 1970-01-30
Abstract: 1,253,002. Nitroimidazole derivatives. G. D. SEARLE & CO. 30 Jan., 1970 [3 Feb., 1969], No. 4559/70. Heading C2C. Novel compounds of formulae I and II: (in which R is H or C 1-6  alkyl, each of Y and Y<SP>1</SP> is C 2-5  alkylene, 2,2-pentamethylene-1,3-trimethylene, cyclohexenylene, phenylene, nitrophenylene, pyridinediyl, naphthylene or acenaphthylene, and Y can additionally be -NH-Q-, where Q is phenylene or -CR<SP>1</SP>R<SP>11</SP>, where each of R<SP>1</SP> and R<SP>11</SP> is phenyl or C 1-6  alkyl, or R<SP>1</SP> and R<SP>11</SP> together with the adjacent carbon atom represents a C 5-7  cycloalkylidene or adamantylidene radical, and Z is -CO- or, when Y is phenylene, also -SO 2 -) are prepared by reacting a compound of formula III: (in which A is H or -CH 2 CH 2 X, where X is halogen, toluenesulphonyloxy or methanesulphonyloxy) with a compound of formula IV: (in which B is an active metal ion when A is -CH 2 CH 2 X, or B is -CH 2 CH 2 X when A is H) to give a compound of formula I, and, if desired, hydrolysing under mild basic conditions a resulting appropriate compound of formula I to give the corresponding compound of formula II. The compounds of formula I in which Y has the same meaning as Y<SP>1</SP> can also be prepared by ring closure of compounds of formula II under acidic conditions.
Patent GB-1258791-A (GB)
IPC: B60C23/04
Filed: 1969-01-06
Abstract: 1,258,791. Tyre deflation indicators. R. D. PRODUCTS Inc. 6 Jan., 1969, No. 736/69. Heading B7C. [Also in Division H1] A device for indicating a low pressure condition in a tyre comprises an electrical circuit including a first switch 11 responsive to the tyre pressure and which closes when the pressure falls below a pre-determined value, a second switch means opening when the tyre is stationary and signalling means that emit a warning signal only when both first and second switches are closed. The first switch comprises a hollow plastic body 16 containing a movable contact 26 spring urged to engage fixed contacts 34, 35 and a threaded cap 61 attachable to the tyre valve stem 67, so as to place a diaphragm 42 in communication with the tyre interior, the diaphragm thus being operative to open the switch when the tyre pressure exceeds a predetermined amount. This amount may be varied by adjustment of screw 22. The second switch means comprises two mercury switches 78, 79 mounted on diametrically opposed sides of the tyre's axis of rotation. The circuit includes a manually operated test switch 90 in parallel with the switches 78, 79. The signalling means comprises a radio transmitter T having an aerial situated in the wheel hubs.
Patent GB-1264094-A (GB)
IPC: F16C33/46
Filed: 1970-02-10
Abstract: 1,264,094. Making bearing cages. TEXTRON Inc. 10 Feb., 1970 [12 Feb., 1969], No. 6355/70. Heading B3A. [Also in Division F2] A roller bearing cage is formed from a solid annulus 11 having a pair of annular ribs 24 projecting from one of its cylindrical surfaces. The annulus is first drilled to produce a number of bores 25 each having a diameter approximately equal to the diameter of a roller to be retained in the cage. The bore intersects both the annular ribs 24. The bore 25 is then broached to enlarge it to a rectangular opening 26 whose width is sufficient to accommodate a bearing roller, and whose radial thickness is less than the diameter of a roller. After the formation of the opening 26, portions 27 of the faces of the ribs exposed on opposite sides of the opening are undercut with a dovetail broach to leave lips 16 projecting into the opening 26 in order to retain the rollers in the cage in one radial direction.
Patent GB-1265547-A (GB)
IPC: B65B1/20
Filed: 1969-06-13
Abstract: 1,265,547. Packaging particulate or pulverulent material. BADISCHE ANILIN- & SODAFABRIK A.G. 13 June, 1969 [15 June, 1968; 27 Sept., 1968; 5 Dec., 1968], No. 30104/69. Heading B8C. In a process for packing particulate or pulverulent products in packaging made of plastics sheeting, a container made of orientated plastics sheeting provided with perforations having a diameter less than the mean particle size of the product, is filled with the product, is cleaned after filling and is then heated until the perforations have closed. As shown, the sheeting 2 is drawn in tubular form from a roll 1, across a table 4 and below a roller 5 provided with needles for perforating the sheeting prior to the latter passing into a unit 7 where it is cut into sections and made into bags. The empty bags are -then conveyed to .bag-filling equipment 10 and after filling, are conveyed beneath a cleaning device 15 comprising revolving brushes 16 or compressed air before passing through a heating zone 18 e.g., an oven, which releases directional and frozen-in stresses set up during the perforation process and causes the perforations to close and the filled containers to assume a compact shape. Cooling means 20 may be provided downstream of the heating zone 18. In another arrangement, Fig. 2 (not shown), non-tubular sheeting is used which is drawn over a roller below the roller 5 and the containers may be heated by a heated endless belt and the cooling of the filled containers effected by cold air or by water-cooled plates. The Specification describes experiments to determine (a) the heating times required to close the perforations in sheeting of thicknesses between 0.10 mm. and 0.25 mm. for temperatures in the range 120‹-200‹ C.; and (b) the residual porosity of sheeting of thicknesses between 0.15 mm. and 0.25 mm. for heating periods of 3-8 seconds. A polymer dispersion or solution may be applied to the filled containers by brushing or spraying and wiping before or during the heating period. Internal pressure on the sheeting caused by the product may be relieved during the heating period by supporting the sides of the container against belts running on rollers arranged perpendicularly to a conveyer (2) or by supporting the edges of the conveyer (2) so that the conveyer forms a trough, Figs. 5 and 6 (not shown).
Patent GB-1288576-A (GB)
IPC: F16L19/08
Filed: 1969-09-18
Abstract: 1288576 Pipe couplings SNO-TRIK CO 18 Sept 1969 [18 Sept 1968] 45954/69 Heading F2G In a pipe coupling, a nut 34 is screwed on to a socket 12, which receives a pipe 26, and forces ferrule means toward the socket, by means of complementary tapered thrust surfaces 40, 88 in the nut and ferrule means, so that the leading part 52 of ferrule means, which is tapered and locates in a taper 28 of greater angle in the socket is deformed on to the pipe. The ferrule means comprises two ferrules, 44, 46, ferrule 44 having a curved apical portion. After deformation of the leading part 52 of the ferrule 44, the leading part 78 of ferrule 46, which has a taper 82 cooperating with tapered recess 72 in the rear face 61 of ferrule 44, is deformed into the pipe 26. The pipe 26 has a conical end surface 94 and seats in a taper 22 of the socket 12 and is sealed by the ferrule deformation action on the pipe, causing the surfaces 22, 94 to mate. A bleed hole 29 in the socket 12 allows fluid from the pipe 26, which leaks past the mating surfaces 22, 94, to escape. The socket 12 may comprise a male element screwed into a female element with the male element counterbored to accept insertion of the pipe 26 in the female element, Fig. 10 (not shown), or the male element may accept the cored pipe end and be located in the female element by a similar taper arrangement (Fig. 3, not shown).
Patent GB-1295050-A (GB)
IPC: G01N25/52
Filed: 1969-01-07
Abstract: 1295050 Measuring critical temperatures, gas analysis HONE INSTRUMENTS Ltd 1 Jan 1970 [7 Jan 1969] 899/69 Headings G1B, G1D, G1N To measure the flash point of a volatile liquid including hydrocarbons, the liquid is heated in a vessel 1 provided with means 12 for measuring the liquid temperature, the temperature of a thermocouple 11 coated with a catalyst, e.g. platinum black, enveloped in the vapour above the liquid in the vessel being dependent on the hydrocarbon concentration in the vapour, and the voltage output of the thermocouple 11 is measured. When that voltage reaches a value indicating that the vapour would ignite if exposed to a flame, the liquid temperature measured by means 12 is the flash point of the liquid. As shown, liquid is supplied to the vessel 1 through a pipe 2, the level in the vessel being maintained constant by an outlet 3. Air or oxygen is supplied via a branch 6 of the pipe 2, or via a separate inlet to the vessel 1. The thermocouple 11 is in a chamber 7 of an outlet duct 4 from the vessel 1, open to the atmosphere. The temperature measuring means 12 is a thermocouple. The vessel 1 and its pipes are of an electrically conductive material, e.g. stainless steel, and is heated by passing current between connectors 9, 10 through the walls of the vessel and pipes. Parts of the apparatus may be of a material of higher electrical resistivity than the rest, to give locally higher wall temperatures. The heating current is automatically controlled in accordance with the output voltage of the thermocouple 11. In use, liquid is supplied continuously to the vessel 1 and the temperature of the liquid is progressively raised until the hydrocarbon concentration in the vapour about the thermocouple 11 reaches the flash level. The heating current is then regulated to maintain the liquid temperature steady at the flash point, the temperature measured by thermocouple 12 preferably being continuously recorded. If the composition of the liquid supply changes, the thermocouple 11 responds to the change in hydrocarbon vapour concentration, causing the heating current to be adjusted until a new flash point is stabilised. The thermocouple 11 and its voltage measuring equipment, calibrated to give a direct reading of hydrocarbon or free hydrogen, may be used to monitor the hydrocarbon or free hydrogen concentration in a pipeline of a processing plant, where it is desired to prevent such concentration reaching an explosive level.
Patent GB-1295313-A (GB)
IPC: F16J15/34
Filed: 1970-04-30
Abstract: 1295313 Lubricating and cooling bearings or end face seals J R SMALE and F L ROBSON 30 April 1970 20956/70 Headings F2A and F2B A bearing assembly or end-face seal has one bearing member 17 mounted in a housing 2 and a second bearing member 7 having an annular bearing surface in contact with and mounted eccentrically of the bearing surface of the first member the centres of the surfaces being offset by half the face width of the narrower faced member. The member 17 is urged towards the member 2 by a series of elastomeric 0-rings 30. A chamber is formed in the housing encircling the mutually contacting bearing surfaces and passageways 13 are provided to supply lubricant to the chamber. Further passageways 26, 27 are provided to supply the bearing surfaces radially inwardly of the mutually contacting portions with a coolant. The coolant may be air, which may be chilled, or water. A flinger 35 is provided on the shaft to assist circulation of liquid coolant.
Patent GB-1296243-A (GB)
IPC: C03C27/04
Filed: 1970-05-21
Abstract: 1296243 Jointing SCIENCE RESEARCH COUNCIL 20 July 1971 [21 May 1970] 24768/70 Heading B3V [Also in Division C1] A strip of deformable material is disposed at the end of an adhesive layer in a bonded joint to prevent spreading of the adhesive. The joint may be used in glass or ceramic articles or in vacuum vessels, and the adhesive may be based on silicones, epoxy resins or polyamides. The deformable strip may be metal, e.g. lead, aluminium, copper or indium, polyethylene or p.t.f.e. Heat may be applied during formation of the joint, and atmospheric pressure may load the joint if it is formed in a vacuum. As applied to an accelerator vacuum vessel having glass or ceramic insulators 11, Fig. 2, bonded to aluminium electrodes 22 by a thermoplastic adhesive 33, a ring 5 of metal prevents inward spread of the adhesive as it is deformed, Fig. 2b. The ring may be located in a groove (7) in the electrode (Fig. 3), or integral ribs (5<SP>11</SP>, Fig 4) may be used. The ring may be located against the shoulder of an elongated recess (Fig. 5), or a step may be formed at the inner edge of the insulator.
Patent GB-1297341-A (GB)
IPC: A63H18/02
Filed: 1971-01-14
Abstract: 1297341 Track for toy vehicles MATTEL Inc 14 Jan 1971 [20 Aug 1970] 1796/71 Heading A6S A track for use with toy wheeled vehicles 16, 18 has a concave cross-section the radius of curvature R1 of which is greater across most of the track width W than that R 2  at the edges. The width W is defined by a line L between points A and C located where a tangent to the track makes an angle of M=30 with the line L. Preferably W<R 1  <5W; W/40 <R 2  <W/4; and twice the vehicle width, Y, <W <4Y. The centre portion of the track may have a varying radius of curvature. Side rails 22, 24 are included. The vehicles may be self-powered, e.g. electrically, or unpowered. In the latter case an accelerator mechanism, comprising a narrowing section of track leading to a rotating belt, may be included. The track may be banked.
Patent GB-1297627-A (GB)
IPC: B60C11/04
Filed: 1969-01-23
Abstract: 1297627 Tyre treads DUNLOP HOLDINGS Ltd 19 Jan 1970 [23 Jan 1969 6 Dec 1969] 3840/69 and 59688/69 Heading B7C The ground-contacting surface of a tyre tread is provided with water-absorbing chambers extending to the depth of the tread rubber and closed at their radially inner ends, each chamber being of circular cross-section at said surface and of a diameter between 0.25 and 2.5 mm. or having an equivalent cross-sectional area at said surface and being other than circular, at least a portion of the wall of each of a substantial number of the chambers being provided with asperities, the distance between a given point on one chamber and an equivalent point on its closest neighbour being between 0.375 and 20 mm., and the quantity of all chambers provided being such as to reduce the area of the tread wearing surface by not more than 35% compared with an otherwise identical tyre not provided with chambers. The asperities may be formed by the roughening created by a rotary drill used to make the chambers, or by the configuration of the surfaces of moulding pins used to mould the chambers. The rubber of the tread may include filaments, e.g. of rayon, -nylon, steel or glass to contribute to the formation of the asperities. The tyre may have a combination of chambers and slots of the kind described in Specification 1,101,135. The tyre may have the features described and claimed in Specifications 1,226,325,1,222,964 and 1,199,323. Specifications 1,250,757 and 1,132,352 are also referred to.
Patent GB-1301565-A (GB)
Filed: 1970-02-14
Abstract: 1301565 Alkanolamine salts of a-sulphofatty acid esters HENKEL & CIE GmbH 14 Feb 1970 7218/70 Heading C2C [Also in Divisions B1 C5 and D1] In examples (1) the diethanolamine salt of hexadecyl α-sulpho palmitic acid ester is prepared by reacting the sulpho palmitic acid with hexadecyl alcohol in solvent naphthe under reflux, followed by addition of the amine and removal of solvent by distillation; α-sulpho stearic acid may be used in place of the sulphopalmitic acid and triethanolamine in place of diethanolamine. In example (2) a mixture of the diethanolamine salt of hexadecyl α-sulpho palmitate with hexadecyl stearate is prepared similarly using a mixture of stearic acid and sulpho palmitic acid in the esterification. In example (3) the diethanolamine salt of tridecyl α-sulpho palmitate and also the N-amino ethyl ethanolamine salt of decyl α-sulpho sterate are prepared by inter reaction of the amine, sulpho acid and appropriate alcohol using benzol as solvent.
Patent GB-1305976-A (GB)
IPC: B64C23/00
Filed: 1970-05-16
Abstract: 1305976 Deflecting propulsion jets DEFENCE SECRETARY OF STATE FOR 17 May 1971 [16 May 1970 1 July 1970] 23839/70 Heading B7G [Also in Division F1] The invention relates to a gas turbine engine for use in an aircraft having a fluid-operated high lift device. The engine shown comprises an LP compressor 14, HP compressor 16 combustion equipment 18, HP turbine 20 which drives the HP compressor through shaft 22, and LP turbine 23 which drives the LP compressor through shaft 24. A fan 10 is driven from the LP compressor and comprises variable pitch blades, the fan discharging in part to the LP compressor 14 and in part to a fan duct 11 and propulsion nozzle 12. The turbine exhaust gases discharge through propulsion nozzle 25. Air from the LP compressor passes in part to the HP compressor arid in part to a duct 7 disposed in the pylon 4 by which the engine is supported from the aircraft wing 3. From the duct 7 the air may pass under control of valves 33, 34 either to a duct 6 from which it discharges to a high lift device or to a propulsion nozzle 32. The high lift device may comprise an elongated nozzle outlet from the duct 6 through which air discharges adjacent the wing flaps. Controls means 40, 41 are provided for controlling the speeds of the two shafts when the pitch of the fan blades is reduced, the pitch-changing mechanism being indicated at 36. In Fig. 5 the fan 100 is connected to the LP compressor through a reduction gear 110, the pitch changing mechanism being indicated at 112 and the fan discharge nozzle at 115. Air form the LP compressor 101 passes in part to HP compressor 105 and in part to duct 120 from which it passes under control of a valve assembly 125 either to a high lift device 128 associated with the wing flaps 129, 130, or to a propulsion nozzle 134, or to a reverse thrust nozzle 123.