baber/WOPTO huggingface dataset:
Patent GB-1066090-A (GB)
Title: Method for ultrasonically testing a weld
IPC: G01N29/11
Filed: 1964-10-15
Abstract: 1,066,090. Ultrasonic flaw-detecting; ultrasonic couplings. FORD MOTOR CO. Ltd. Oct. 15, 1964 [Dec. 6, 1963], No. 42057/64. Headings H4D and H4J.  In an ultrasonic pulse-echo method for testing a weld between two sheets of metal, in which a single transmitting- receiving transducer transmits a pulse train towards the weld zone and receives a first echo pulse train from the metal surface nearest the transducer and a second echo pulse train from the weld zone, the duration of the transmitted pulse train is made short to prevent overlap of the two echo pulse trains. The transducer (Fig. 6, not shown) comprises a piezoelectric crystal or ceramic wafer (17-4) backed with vibration - damping material (17-9) and coupled through oil or water (17-6) to a workpiece 19, and is mounted in a housing (17-1, 17-2, 17-3). The measurement cycle:-The discharge of a capacitor (15-3) (Fig. 7) in a pulse generator circuit 15 applies a sharp voltage pulse to the transducer which then emits an acoustic pulse comprising oscillations at the natural frequency of the piezo-electric wafer (17-4) (e.g. 2À25 to 25 M/cs.). Because of the heavy damping by the material (17-9), a few cycles only (e.g. 1 to 5) of the oscillation occur in the acoustic pulse. The resulting first, second and subsequent echo pulses are received by the transducer, then amplified, shaped and passed through a noiselimiter in a unit 21 to provide a video signal which is displayed on a C.R.O. (cathode-ray oscilloscope) 25. The measurement cycle is repeated at a frequency determined by a lowfrequency (e.g. 100 to 1000 c/s.) oscillator in a control unit 13 which provides trigger signals for the pulse generator 15 and for the C.R.O. timebase. Gating and measurement of selected echo pulses:- A synchronizer circuit 27-1 and gate generator 27-2 are triggered by the video signal and gate an amplifier 27-3 such that the video signal from unit 21 is fed to a read-out circuit only after the first echo pulse train has been received, thus eliminating disturbing effects due to variations in probe coupling. The gating signal from generator 27-2 may be delayed and varied in length in order to pass echo pulses in a selected time interval to the read-out circuit. In a measurement cycle, the echo pulses from video amplifier 27-3 are integrated by a unit 27-4 and the resultant signal is fed to a peak-reading meter and alarm circuit 27-5, 27-6, 29 to give a read-out representing the acoustic energy reflected by the weld zone in the multiple reflections occurring during the gated interval. Alternatively, the integrator 27-4 can be by-passed, allowing the peak-detector 27-5 to detect the maximum voltage of the video signal from amplifier 27-3 in the gated interval. A large proportion of reflected acoustic energy indicates a poor weld. After each measurement cycle, the peakdetector 27-5 is reset by a trigger pulse from the control unit 13. The C.R.O. 25 may be dispensed with or used to facilitate adjustment of the read-out circuits or to monitor the gate signals from generator 27-3.
Patent GB-875732-A (GB)
Title: Improvements in or relating to lubricating grease compositions
Inventor: MOORE HOWARD DANIEL
IPC: C10M169/00
Filed: 1959-12-11
Abstract: A lubricating grease comprises (a) a lubricating oil, (b) an inorganic gelling agent, and (c) a minor proportion by weight of the total composition of a finely divided alkaline earth metal salt, preferably the calcium salt, of a carboxylic acid containing 1-10, preferably 1-4, carbon atoms, such salt generally being present in an amount of 3-25%, most suitably 5-15%, by weight, and preferably having a particle size not greater than 125 m , but most preferably below 5 m .  (a) may be any lubricating oil commonly used in greases, e.g. refined, unrefined, or semi-refined paraffinic, naphthenic or asphaltic base mineral or synthetic oil, having a viscosity of 50-4000 S.U.S. at 100 DEG F.  (b) may be a clay such as bentonite or hectorite, or amorphous colloids, such as silica, magnesia, alumina, silica-lime or silica-magnesia, in aerogel form, and is usually present in amounts of 1-15% by weight.  To improve the compatibility of the gelling agent a small amount of surface active agent is generally incorporated in amounts of 30-100% by weight of the gelling agent; it is preferred that the surface active agent be cationic and that the gelling agent be treated therewith to render it oleophilic before incorporation in the composition.  The salt (c) may be the salt of a saturated or unsaturated, aliphatic mono-or poly-carboxylic acid, of hydroxy derivatives thereof, or of aromatic carboxylic acids; calcium acetate and calcium tartrate are preferred.  Such salts endow the compositions with extreme pressure characteristics. The composition may be formulated by milling the salt into the preformed grease directly; by mixing into the grease a mixture of salt and lubricating oil; by emulsifying an aqueous solution of the salt with oil by means of an emulsifying agent, dehydrating the mixture and adding the suspension of salt in oil to the preformed grease; or by forming the salt in situ in a lubricating oil, e.g. by slurrying lime with oil and then adding glacial acetic acid to the mixture.  The compositions may also include dispersants such as propylene carbonate, antioxidants such as phenyl-a -naphthylamine, and corrosion inhibitors such as sodium nitrite or potassium chromate.  Specifications 672,650, 703,169, 778,822 and U.S.A. Specification 2,260,625 are referred to.
Patent GB-981821-A (GB)
Title: Preparation of phosphonitrilic polymers
IPC: C08G79/02
Filed: 1962-11-09
Abstract: The invention comprises a cyclic trimeric phenyl substituted phosphonitrilic halide having the formula <FORM:0981821/C2/1> wherein X is halogen and also a phosphonitrilic polymer having the repeating structural unit <FORM:0981821/C2/2> wherein #f represents phenyl. The polymers may be obtained by a process involving the following steps:  (a) reacting a monophenyl phosphorus tetrahalide (C6H5PX4) with an ammonium halide to form a cyclic trimeric phenyl substituted phosphonitrilic halide of the above formula, (b) ammoniating the latter to form a compound of the formula <FORM:0981821/C2/3> and (c) polymerizing the ammoniated trimer by heating, preferably at a temperature from 270 DEG  C. to about 300 DEG  C. for 1 to 5 hours. Step (a) is preferably carried out at elevated temperature in the presence of an inert solvent, e.g. chlorobenzene, sym-tetrachloro-ethane or p-chlorotoluene and an excess of the ammonium halide is preferably used.  When the reaction is complete the desired trimeric product is isolated from tetrameric and higher polymeric products by fractional crystallization from a solvent, e.g. cyclohexane and the final trimeric product consists of cis and trans isomers either of which may be recovered and used separately in steps (b) and (c) in forming the polymer. Step (b) is carried out with an excess of ammonia generally at about room temperature and preferably in an inert solvent e.g. chloroform in which case the ammoniated trimer may be isolated in the form of its adduct with chloroform which adduct may be converted to the free ammoniated trimer by heating to 150 DEG  C. at 0.5 mm. Hg pressure. The polymer obtained from step (c) is generally a brittle glass like solid. Specification 961,912 is referred to.ALSO:The invention comprises a phosphonitrilic polymer having the repeating structural unit:- <FORM:0981821/C3/1> wherein #j is phenyl.  It may be obtained by (a) reacting a monophenyl phosphorus tetrahalide (e.g. C6H5PCl4) with an ammonium halide, e.g. NH4Cl, to form a cyclic trimeric phenyl substituted phosphonitrilic halide of the formula <FORM:0981821/C3/2> wherein X is halogen, (b) ammoniating the latter to form a trimeric compound of the formula <FORM:0981821/C3/3> and (c) polymerizing the ammoniated trimer by heating preferably at between 270 DEG  and 300 DEG  C. for 1 to 5 hours.  The final trimeric product from step (a) consists of cis and trans isomers either of which may be recovered and used separately in steps (b) and (c). The polymers are generally brittle, glass-like solids, the polymer obtained from trans trimer being insoluble in all the usual organic solvents while that from the cis trimers differs in that it is soluble in benzene.  Specification 961,912 is referred to.
Patent GB-1392453-A (GB)
Title: Stator assemblies for dynamo electric machines
IPC: H01F5/06
Filed: 1971-09-11
Abstract: 1392453 Coils for dynamo-electric machine LUCAS ELECTRICAL CO Ltd 31 Aug 1972 [11 Sept 1971] 42439/71 Addition to 1345873 Heading H2A In a stator assembly as disclosed in Specification 1,345,873 the insulating material projecting from the face of each winding adjacent the yoke is secured to that face to provide a continuous layer of insulating material between the winding and the yoke. The insulation is secured to the face of the winding by a heat sealing operation.
Patent GB-1156168-A (GB)
Title: Method for the Separation of Ammonium Sulphate from a Slurry comprising an Aqueous Acrylamide Solution and Solid Ammonium Sulphate
IPC: C01C1/24
Filed: 1966-09-23
Abstract: 1,156,168. Ammonium sulphate recovery. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 23 Sept., 1966 [26 Aug., 1966], No. 42650/66. Heading C1A. [Also in Division C2] The separation of solid ammonium sulphate from a slurry containing the same and an aqueous solution of acrylamide, is effected at 10-30 C. in the presence of 3-30 parts by weight of one or more propionamideamines per 100 parts by weight of water. Specified propionamideamines are 3-aminopropionamide, 3,3<SP>1</SP> - iminodipropionamide, and 3,3<SP>1</SP>,3<SP>11</SP>- nitrilotripropionamide. After the removal of the ammonium sulphate, the mother liquor is cooled to crystallize acrylamide which is separated. The aforementioned slurry is obtained by neutralization of acrylamide sulphate in an aqueous medium with ammonia or with an ammonium salt of a weak acid (e.g. carbamate, carbonate, bicarbonate), the acrylamide sulphate having been prepared by hydrolysis of acrylonitrile with aqueous sulphuric acid. In the examples, the acrylamide sulphate neutralization and the ammonium sulphate separation are performed successively with 3,3<SP>1</SP>,3<SP>111</SP>-nitrilotripropionamide present in solution throughout.
Patent GB-1163284-A (GB)
Title: Anti-Sidetone Arrangement
Inventor: EKLUND KARL GUNNAR
IPC: H04M1/58
Filed: 1966-09-27
Abstract: 1,163,284. Anti - sidetone arrangements. TELEFONAKTIEBOLAGET LM ERICSSON. 27 Sept., 1966, No. 43195/66. Heading H4R. An anti-sidetone arrangement has four impedance members L 1 , L 2 , L 3 , L 4  (Fig. 1) having resistance and three intervening junction points c, d, e arranged alternately in series. The middle junction point d is connected to a transmitter M 1  and one of the members L 1 , L 2 , L 3 , L 4  on each side of the junction point d is a primary winding portion of a transformer T 1  of which a secondary L 5  feeds a receiver H 1 . The two outer junction points c, e are interconnected by a non-linear element K 1  designed to attenuate signals fed to the receiver H 1  in inverse relation to the strength of direct current through the element K 1 . The element K 1  may be two counter-directed diodes, or a varistor. A balance branch eb 1  is such that the ratio of the respective resistances between the middle junction point d and each outer junction point e is substantially the same as the loop resistance R L  to the resistance of the balance branch eb 1 . Impedance member L 3  may be replaced by a resistor (R 10 ), Fig. 2 (not shown), and impedance member L 2  by a series arrangement of an impedance (L 15 ) and resistor (R 9 ). A non- linear element (K 6 ) connected between impedance (L 15 ) and resistor (R 9 ) effects transmission regulation. In another arrangement (Fig. 3, not shown) microphone attenuation is provided by non-linear elements (K 14  and K 15 ) situated respectively between point c and the opposite speech branch, and in parallel with the balance branch. Counter-directed rectifiers (K 3 ) across the receiver (H 3 ) attenuate high amplitude pulses.
Patent GB-1166259-A (GB)
Title: Improvements in Heat Exchangers.
Inventor: HODGES WILLIAM SHARLES
IPC: F28D1/03
Filed: 1965-12-14
Abstract: 1,166,259. Making heat exchangers. JAMES BOOTH ALUMINIUM Ltd. 14 Dec., 1966 [14 Dec., 1965; 29 Sept., 1966], Nos. 52961/65 and 43552/66. Heading B3A. [Also in Division F4] In a method of forming heat exchangers particularly vehicle radiators a plurality of deformed rectangular sheets 10 of aluminium foil are bonded together by adhesive to define fluid flow paths for the heat exchange media e.g. water and air. Each sheet e.g. 10a, 10b, 10c, 10d is printed with adhesive in a predetermined pattern such that only the areas of the sheet abutting adjacent sheets in the assembly are coated with adhesive. Apertures such as 11 are formed in a flat sheet which is then deformed to the configuration shown, viz. a series of spaced apart closed loop channels 12 with transverse channels 13 interposed therebetween. To assemble the heat exchanger the sheets 10 are placed in abutting relationship and compressed causing the adhesive to bond the sheets together. After the adhesive has cured the assemble of sheets is deformed by moving the laminates apart so forming a honeycomb structure as shown.
Patent GB-934404-A (GB)
Title: Record changing mechanism
Inventor: CADDY EDWARD WILLIAM JOHN
IPC: G11B17/16
Filed: 1960-12-20
Abstract: 934,404. Automatic gramophones. GARRARD ENGINEERING & MANUFACTURING CO. Ltd. Nov. 13, 1961 [Dec. 20, 1960], No. 43701/60. Class 40 (2). The setting down position of the pick-up in an automatic gramophone is determined and set by a shaft 16 rotatable in a bearing 2 and having an arm 1 extending into the path of a 10 inch or 12 inch record falling to the turntable, the lower end of shaft 16 being moved linearly and transversely in a slot 3 to a position corresponding to and dependent upon the angular displacement of said shaft. In the event of a 7 inch record falling clear of the arm 1 to the turn-table, no rotation of shaft 16 takes place, and the cam surface 9 thereon remains held against a pin 5 by a spring 6 so that the pick-up arm 14 may continue on its inward swing until arrested by the engagement of the shaft 16 with a surface 17 on an arm 13 associated with the pick-up arm 14. When a 10 inch record falls to the turn-table the arm 1 is swung sufficiently for the pin 5 to slip from the surface 9 to the surface 8 whereby the inward swing of the pick-up arm is arrested by a surface 18. When a 12 inch record falls to the turn-table the arm 1 is rotated a larger amount so that pin 5 slips to surface 7 and sets the end of shaft to engage surface 19 when the pick-up arm 14 swings inwardly. During the last stage of the automatic cycle the shaft 16 is moved out of the path of the surfaces 17, 18, 19 by the interception of the corner 12 of a plate 10 driven by the cycling cam-disc 24, so that the pick-up arm is then free to traverse the record. The slot 28 in the connecting link 23 is arranged to grip the pin 27 frictionally at its limit of movement allowing lost-motion when the shaft 16 engages any of the surfaces 17, 18, 19.
Patent GB-1515520-A (GB)
Title: Conduit system having a safety cut-off valve
IPC: F16K17/20
Filed: 1975-10-24
Abstract: 1515520 Fluid-pressure servomotor systems NORDTOOL A B 24 Oct 1975 [28 Oct 1974 19 Aug 1975] 43724/75 Heading G3P [Also in Division F2] A valve 18 at the inlet to a conduit 46 closes if the ratio of the pressure drop across the valve to the pressure drop across a flow sensor 100 deviates by more than a certain amount. The valve thus prevents escape of fluid from a ram in a loading machine if the conduit breaks or ruptures. The pressure drop across the flow sensor is applied through conduits 82, 84 to opposite sides of a flange 64 on a spring-loaded member holding a ball pilot valve 52 on to its seat while the pressure drop across the valve 18 is applied to opposite sides of the ball valve through ducts 62, 74. If the flow through the sensor falls, e.g. by about 30%, the ball valve opens and a latching piston 30 allows the valve 18 to close against a seat 28. In a second embodiment, the ball valve is omitted and the pressure drop across the flow sensor is applied to the upper and lower faces of a spool valve (117) Fig. 4 (not shown), in opposition to the pressure drop across a seat (128) for the spool.
Patent GB-912549-A (GB)
Title: Improvements relating to aircraft
Inventor: KNIGHTS RICHARD NORTHAM
IPC: B64C25/50
Filed: 1959-12-23
Abstract: 912,549. Steering aircraft nosewheels. DOWTY ROTOL Ltd. Jan. 31, 1961 [Dec. 23, 1959], No. 43737/59. Class 79(5). [Also in Group XXXIII] In a landing gear for aircraft (see Group XXXIII), a steerable nosewheel may be turned about a vertical axis 27 by a jack 28 pivoted to an arm 29. The steering is effected electro-hydraulically through an input transmitter 32 controlled by a control member 31, a follow-up transmitter 33 controlled by the movement of nosewheel 26, and a relay 34 responsive to the phase difference in the signals from transmitters 32, 33 to control a valve 35 operated by solenoids 41, 42. Pressure and return pipes P and R are connected to valve 35 from which pipes 36, 37 lead through liquid flow restrictors 38, 39 to jack 28.
Patent GB-1026725-A (GB)
Title: Production of adipic acid
IPC: C07C51/31
Filed: 1962-05-19
Abstract: Adipic acid is prepared from cyclohexanone which contains from 0 to 4 parts of cyclohexanol, by oxidation with molecular oxygen gas in a zone at 60 DEG  to 100 DEG  C., a pressure from atmospheric to 1000 p.s.i.g., and an inlet oxygen partial pressure in range 3 to 15 p.s.i.a. in the presence of a soluble manganese catalyst which may contain soluble copper.  The inlet oxygen partial pressure and the ratio of copper to manganese in the catalyst are selected to obtain a yield of at least 85% adipic acid according to the proportion of cyclohexanol in the cyclohexanone.  Preferred ranges of oxygen and copper when the cyclohexanone contains less than 0.5 part of cyclohexanol are oxygen in the lower half of a 3-15 p.s.i.a. range and a copper content of at least 1.5 parts per part of manganese; for a cyclohexanol content of 0.5 to 2 parts of cyclohexanol to cyclohexanone oxygen pressure of at least 7 p.s.i.a. or a copper-manganese ratio in the lower half of the solubility range. The reaction medium may be carboxylic acids (2-6C), e.g. acetic acid, a chlorobenzene, or t-butyl alcohol. The cyclohexanone may be prepared by oxidizing cyclohexane with molecular oxygen which produces the mixture which may contain cyclohexanol. Examples are given of the process using oxygen and copper-manganese catalysts adjusted according to the composition of the starting material.
Patent GB-440352-A (GB)
Abstract: 440,352. Ink - ribbon mechanism. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A. June 27, 1934, No. 18918. Convention date, June 30, 1933. Addition to 439,118. [Class 100 (iv)] [See also Group XIX] The insertion of the resetting-key now serves also to shift a bichrome ink - ribbon to cause totals and sub-totals to be printed in distinc. tive colours. The ink ribbon is carried by a frame 202 slidable in a slot 201 in the printing hammer 108 and ie normally in the position shown tc print a sub-total The insertion of the resetting - key as described in the parent Specification, rocks a sleeve 87 to add a unit to the reset counter. This movement of the sleeve now serves also to shift the inkribbon frame upwardly to position a differently coloured portion of the ribbon in front of the platens 121. For this purpose, levers 208 extending through slots 206 in the ribbon frame are connected by links 209 to arms 210 rigid with the sleeve. The ribbon is secured to arms 204 of the frame 202 by eyelets 212, the arms being so shaped and the eyelets so positioned that the ribbon can only be assembled with the correct colour uppermost.
Patent GB-1003560-A (GB)
Title: Unitized bathroom structure
IPC: A47K4/00
Filed: 1962-11-22
Abstract: 1,003,560. Prefabricated bathrooms. ROHR CORPORATION. Nov. 22, 1962 [Dec. 11, 1961], No. 44176/62. Heading E1A. A prefabricated bathroom unit comprises an internal plastic shell 18, 19 bonded to an exterior wooden framework 59, 60, 62, 79, 80 for fuller details of which, Fig. 1 (not shown), should be referred to. The shell consists of a bath 20 moulded integrally together with other utilities such as shower stall, toilet, cabinet &c.- with the walls, ceiling and floor of the bathroom. A gap is provided for the door 25 and an outwardly-extending recess 21 or a sliding window. The shell is made from a glass impregnated polyester resin and may be constructed in two parts interconnected by a bonded flange connection. Again, the shell may be moulded with a recess to receive a separate bath or modified to accommodate two toilets disposed on either side of a common partition, see Fig. 14 (not shown). Plumbing and electrical services are incorporated in the unit.
Patent GB-1005209-A (GB)
Title: Improvements in or relating to recording and reproducing apparatus
IPC: G11B17/025
Filed: 1961-12-12
Abstract: 1,005,209. Random access storage system. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 12, 1961 [Dec. 30, 1960], No. 44391/61. Heading G5R. A record sheet magazine A, Fig. 1, is raised or lowered by known means and a selected magnetic record moved into approximate transducing position by friction wheels 72 or 73 adjacent either of two rotating transducer assemblies. Each record, Fig. 7, has an accurate central square -aperture 11 and a rotary assembly 23 for two transducers 39, 40 also carries a lamp means 29 whose beam intercepts differing portions at the comers of the aperture 11 depending on the degree of exactness in registration. The light reaches four photo-cells 31-34 and the outputs due to an off-centre and an aligned position are as in Figs. 9 and 8, respectively. The pulse variations, Fig. 9, operate gripper/shifter means 84, 87 to centralize the record. The heads 39, 40 are adjusted radially by piston adders of known type (Figs. 2, 6, not shown) and the record 10a, Fig. 3, after centralization, is vacuum-clamped to the platen 22, Fig. 4, the the heads are raised close to the record, and when they are spinning at an adequate speed, a solenoid 44 pushes them into air-bearing transducing relationship, Fig. 5.
Patent GB-1499555-A (GB)
Title: Topical vascular chemotherapy
IPC: A61K31/355
Filed: 1975-10-29
Abstract: 1499555 Compositions containing colophony and α-tocopherol M J SHULMAN 29 Oct 1975 [4 Nov 1974] 44618/75 Heading A5B A pharmaceutical composition, suitable for the treatment of degenerative or traumatic skin disorders, comprises colophony (as defined), α-tocopherol and a carrier, diluent or solvent. Antibiotics, e.g. gentamicin, mafenide, achromycin, erthromycin, terramycin, vibramycin, chloromamphenicol, puromycin or cycloheximide, may also be included in the composition.
Patent GB-1236289-A (GB)
Title: Apparatus for facilitating removal of a panel or the like from a pressing die
Inventor: HARDING PETER CHARLES
IPC: B30B15/32
Filed: 1968-09-20
Abstract: 1,236,289. Removing panels from pressing dies. HARDING-CROSWELLER Ltd. 17 Dec., 1969 [20 Sept., 1968], No. 44738/68. Addition to 1,236,573. Heading B5A. [Also in Division F2] Press panels or the like are removed from dies by means of at least one rack and pinion mechanism comprising a piston-operated drive rack 18, a pinion 16 driven by the rack, a pinion 17 mounted upon the same shaft 15 as pinion 16, and a rack 19 driven by pinion 17 and moving in a direction at right angles to the rack 18. Several driven racks 19 act upon the panel to lift it from the die and by varying the ratios of the two pinions in each mechanism the associated racks 19 can be made to travel different distances thereby tilting the panel whilst raising it. The ends of shaft 15 may be squared to receive hollow rods used to drive other mechanisms of a type similar or dissimilar to these described above and rack 19 may be used to drive the driving rack of a mechanism similar to that described above (see Figs. 3 and 4, not shown).