baber/WOPTO huggingface dataset:
Patent GB-1077217-A (GB)
Title: Moulding compositions of polypropylene
IPC: C07F9/54
Filed: 1964-08-14
Abstract: A moulding composition comprises a mixture of isotactic polypropylene and from 1 to 50% by weight of the mixture of low-pressure polyethylene having a reduced viscosity in solution, measured in p-xylene at 110 DEG  C. of at least 1.8 and less than 6.0, a density of at least 0.95 g./c.c., a methyl group content of not more than 5 methyl groups per 1000 C atoms, and an inhomogeneity not greater than 8.  In Example 1, powdered isotactic polypropylene is mixed with different quantities of polyethylene powder with the addition of stabilizers, the mixtures are granulated and test specimens are prepared therefrom.  In Example 2, isotactic polypropylene is mixed with polyethylene having a density of 0.951 and a reduced viscosity in solution of 3.7.
Patent GB-748854-A (GB)
Title: Improvements in or relating to the production of leuco-copper phthalocyanine
IPC: C09B47/073
Filed: 1953-12-01
Abstract: 1.3 - Di - imino - isoindoline and its 4.5-benzo - homologue are obtained by heating phthalonitrile and 1.2-dicyanonaphthalene respectively with liquid ammonia in a sealed vessel.  The first of these may also be obtained by heating phthalonitrile and urea in an alkyl ether of ethylene glycol at 120-145 DEG  C.  Reference has been directed by the Comptroller to Specification 698,049.ALSO:Phthalocyanine intermediates are made by reacting a 1.3 - diimino-isoindoline (i.e., 1 - amino -3 - imino-isoindolenine or a 4.5 - benzo - homologue thereof in an inert organic solvent at a temperature of 55-95 DEG C. with a cupric salt.  Preferably 6 mols of the isoindoline compound are used for 1 mol of the cupric salt. The diimino - isoindoline may be generated in situ from a salt thereof by addition of a base, e.g., caustic soda, or crude reaction masses containing it may be used.  Solvents specified are methanol, ethanol, alkyl ethers of ethylene glycol, dimethyl formamide, nitrobenzene, o - dichlorobenzene, or 1.2.4-trichlorobenzene.  In examples, 1.3 - diimino-isoindoline or its nitrate or 4.5 - benzo - 1.3 diimino - isoindoline is reacted with cupric chloride.  Cupric sulphate or acetate may be used. Specification 745,359 is referred to.  Reference has been directed by the Comptroller to Specification 698,049.
Patent GB-1063342-A (GB)
Title: Pie baking facility
IPC: A21B5/02
Filed: 1964-08-14
Abstract: 1,063,342. Muffle ovens. R. T. KEATING. Aug. 14, 1964 [April 29, 1964], No. 33345/64. Heading A2A. A muffle oven O, Figs. 1 and 2, which is particularly suitable for baking frozen pies and meringue-topped pies, comprises a baking chamber 11 surrounded by a heating jacket 12 containing a gas burner 27. The oven has a door 18. A fan 13, rotated by a motor 28, circulates heated air, at high speed, within the baking chamber. The fan blades 36 are accommodated between the rear wall 17 of the chamber and a parallel, fixed plate 31, which is provided with a circular opening 33, and is spaced from the other walls of the chamber by narrow openings 38, which create turbulence in the circulating stream of heated air. The baking chamber 11 accommodates two foursided, tubular, sheet metal muffles M, one being above the other. Each muffle has an open front end or mouth, which is fitted, e.g. detachably, with a deflector D preventing entry of the circulating heated air into the muffle. The deflector D, also indicated by the numeral 43 in Fig. 3, may be in the form of a hollow, elongated, truncated pyramid, having an observation opening 51 and a flange 47, provided with curved slots 48 receiving pins 49 projecting from the side walls of the muffle. Figs. 4, 5 and 7 (not shown) relate to modified constructions of the deflector. The rear end of each muffle is provided with a triangular baffle 40. When the two muffles are placed in the baking chamber, the apices of the baffles 40 of the upper and lower muffles, respectively, point upwards and downwards, and thus cover upper and lower segments of the opening 33, so that the heated circulating air is directed around and between the two muffles and is not drawn through them. The goods to be baked, e.g. pies, are placed on the base of each muffle, which base may be provided with openings, to facilitate heating of the bases of the goods. Each muffle is provided with flanges 41, which rest, slidingly, on ledges 42. projecting inwardly from the side walls 16 of the baking chamber.
Patent GB-508783-A (GB)
Title: Apparatus and method for determining the dielectric constants of electrically conductive solutions
IPC: G01N27/22
Filed: 1937-12-02
Abstract: 508,783. Capacitance and resistance measurements. HAARDT & CO. AKT.- GES. Dec. 2, 1937, No. 33404. Convention date, Dec. 2, 1936. [Class 37] Measuring apparatus for determining the dielectric constant of electrically conducting solutions, for example humus-containing earth, waste water contents in organic mixtures, concentration in blood serum, moisture content of butter, decomposition of cement ; and wherein the substance in solution forms the dielectric of a condenser, comprises capacitance, inductance or resistance units inserted singly or in combination in series with the measuring condenser in an oscillatory circuit so that undamped oscillations are maintained, the oscillatory circuit also including a fixed or variable condenser parallel with the measuring condenser and series impedance. In one arrangement, Fig. 1, the capacitance 3 to be measured is connected in series with an impedance 4 and these are connected in parallel to a fixed or variable condenser 2 and inductance 1. In a substitution method, a loss-free condenser and non-inductive resistor in a heterodyne circuit are employed, and measurements both of conductivity and specific inductive capacity can be made.
Patent GB-869029-A (GB)
Title: Improvements in and relating to refrigerator cabinets
Inventor: CAMPBELL JAMES ALEXANDER
IPC: F25D23/06
Filed: 1956-11-02
Abstract: 869,029. Refrigerators. ENGLISH ELECTRIC CO., Ltd. Nov. 1, 1957 [Nov. 2, 1956], No. 33501/56. Class 29 In a refrigerator having an upper storage compartment and a lower machinery space, the rear edge of the base panel 18 being upwardly off-set to form an enlarged space 14 for the machinery, base panel 18 is secured, e.g. by welding 23, 24, to the lower edges of the side and rear walls 16, 17 of the storagecompartment only where its edges are co-planar. The joint 22 between the off-set posts of the rear edge of the panel and the lower edge of the rear wall 17 is filled by a sealing strip and one or more brackets 26 prevent vibration of these parts.
Patent GB-730536-A (GB)
Title: Improvements relating to rotors for turbines or compressors
IPC: F01D5/30
Filed: 1953-12-03
Abstract: 730,536. Turbines and compressors. GENERAL MOTORS CORPORATION. Dec. 3, 1953 [Dec. 30, 1952], No. 33576/53. Class 110(3). In a compressor or turbine, blades are mounted in grooves in the rim of the rotor and each blade is secured by means of a pin which engages a bore formed in the rotor rim and a slot in the blade, the axes of the bore and the slot being inclined to each other so that the pin becomes bent upon insertion. The root portions 16 of the blades 10 are entered in circumferentially-spaced slots in the rotor disc 12, the rim being formed with bores 26 which meet slots 24 formed at the bottom of the blade roots. The axes of each bore 26 and slot 24 are inclined to each other so that the pin 28 becomes bent as shown upon insertion. The pin is of easily shearable material so that the blade can be driven out of the groove, thereby shearing the pin.
Patent GB-735099-A (GB)
Title: Variable displacement pump with direct control in response to discharge pressure
IPC: B62D5/06
Filed: 1953-12-03
Abstract: 735,099. Rotary pumps. NEW YORK AIR BRAKE CO. Dec. 3, 1953 [March 2, 1953], No. 33600/53. Class 110 (2). [Also in Group XXIX] A variable displacement pump has a shaft 14 on which is mounted a rotor 17 having slidable radial vanes 29 which contact at their ends a sleeve 21 which is eccentric to the rotor, the eccentricity being variable according to the position of the sleeve 21 in the bore of the casing 7, which is bored coaxially with the shaft 14 to a chosen diameter and is also bored to the same diameter on a parallel axis slightly eccentric to the shaft. An adjustable stop 27 determines the maximum eccentricity of the sleeve 21 and an adjustable stop 28 determines the minimum eccentricity. A spring 25 urges the sleeve towards the stop 28 while a piston 26 urges the sleeve towards the stop 27, the chamber 24 being connected by a pipe to the delivery pipe. The casing 7 is closed at each end by plates 6, 7 and a connection plate 9. Arcuate grooves 32, 36 form the inlet and outlet ports. The bottoms of the vane slots on the suction side are connected by an arcuate groove 42 and a passage 41 to the suction passage 34. An arcuate groove 44 is similarly connected to the discharge passage 38. Grooves 33, 37 balance the axial thrust due to the suction and discharge ports respectively. Resilient packing-rings 22 seal the sleeve 21.
Patent GB-521426-A (GB)
Title: Improvements in or relating to priming devices for starting internal combustion engines
IPC: F02N99/00
Filed: 1938-11-19
Abstract: 521,426. Starting. PARKER, A. LA R. Nov. 19, 1938, No. 33665. [Class 7 (v)] In a pump for supplying, priming fuel to one or more engine cylinders or to one or more engines in a group, a distributing valve 21 in a housing 3 on the pump casing 1, is turned by the pump piston 4 (at the end of its stroke) into different set positions and when in a shutoff position is held against rotation by a spring 42 acting on a locking means. As shown, the piston 4 is actuated. by a handle 5 and has pinned thereto a stem, 29 for actuating the valve 21. The piston is normally held against rotation by a key 31 passing through the piston and the stem 29 and engaging in one of the keyways 32 in the casing 1. The valve housing 3 is provided with a fuel inlet 14 having a check valve 16 and with outlets 18, 19, and a radial port 27 in the valve 21 can be turned to register with either of the outlets 18, 19 or to a shut-off position. The valve 21 is held on its seat by a spring 22 and has a central port 25 communicating with the radial port 27 past a ball check valve 44 pressed against its seat by a plunger 45 and a spring 47 backed by a diaphragm 48 and cap plate 24. At the inner end of the piston stroke a slot in the'head of the stem 29 engages a member 36 on the valve 21 and the key 31 in the piston is beyond the end of the keyway 32, so that the piston can be used to turn the valve into register with one of the outlets 18, 19 or into the shut-off position. If the valve is turned to the shut-off position and the piston released, the spring 42 will bring the key 31 into a locking recess 39, Fig. 5. If however, the valve is turned to register with one of the outlets 18, 19, the key will register with one of the keyways 32 and the piston can be reciprocated to expel priming fuel to one of the engine cylinders or engines. The spring 42 encircles a cup-shaped abutment member 40 supported on the head 34 of the stem 29.
Patent GB-971390-A (GB)
Title: Improvements in the manufacture of raw natural rubber
Inventor: GERY BERNARD
IPC: C08C3/00
Filed: 1962-09-03
Abstract: A method of softening natural rubber consists of disintegrating coagulum into granules or crumbs, treating where necessary with a complexing agent to remove harmful metals such as copper and manganese, and spraying with a solution or a water or oil dispersion of a peptizing agent and then drying at a temperature high enough to activate the peptizing agent. In a modification the peptizing agent may be added direct to the coagulum, as a dispersion in oil or as a rubber/oil/peptizing agent master-batch, during the preparation of crepe.  In the latter case the agent is preferably added to the scrap washer or on the first roll of the crepeing battery.  Specifications 531,723 and 964,562 are referred to.
Patent GB-284598-A (GB)
Title: Improvements in or relating to facing rolls with cork
IPC: D01H5/74
Filed: 1927-12-13
Abstract: 284,598. Armstrong Cork Co., (Assignees of Busch, H. F.). Jan. 31, 1927, [Convention date]. Rollers. - The ends 5 of the artificial cork covering 1 of a drawing, spinning, or like roll are permanently curved preferably to a slightly smaller radius than the roll body 6 before the covering is applied to the body. The middle 10 of the covering may be flat or curved. The two ends of the covering are forced together by clamps 7 and retained in position by a pin clamp 9 until the fixing cement has set. The covering may be a trifle short and be stretched during its application to the roll body. Specification 249,941, [Class 42 (ii), Fabrics, Treating, otherwise &c.], is referred to.
Patent GB-831170-A (GB)
Title: Improvements in or relating to seals for gas-filled machines
Inventor: LAING JOHN WALLACE
IPC: F16J15/34
Filed: 1957-10-29
Abstract: 831,170. Stuffing-box substitutes. GENERAL ELECTRIC CO. Ltd. Sept. 29, 1958 [Oct. 29, 1957], No. 33761/67. Class 122 (5). In a seal for the shaft of a gas-filled machine comprising a seal ring 3 slidable in a housing 1 and urged into facial sealing contact with a rotatable part such as a shoulder on the shaft, a port 2 is provided in the housing through which high pressure oil may be injected to act radially on the ring 3 to free the latter in the event of its sticking in its housing and thus not following up movement of the shaft in a direction away from the ring. The sticking condition is indicated by excessive flow of sealing oil which is supplied to the seal interface via chamber 4. Specification 805,980 is referred to.
Patent GB-637159-A (GB)
Title: Improvements relating to the electrodeposition of metals
IPC: C25D3/56
Filed: 1945-12-13
Abstract: In the electrodeposition of alloys of lead and indium with or without tin, (see Group XXXVI), anodes of the following compositions, with the corresponding products, were used (1) An 8 per cent indium lead alloy anode gave a deposit containing approximately 5 per cent indium with the balance substantially lead; (2) A 10 per cent indium lead alloy anode, or one containing 20 per cent indium, 20 per cent tin, 60 per cent lead, gave a deposit containing nominally 16 per cent indium, 42 per cent tin, 42 per cent lead.  In example (1) above it is also found that when the lead concentration in the electrolyte varies from 5 to 12 grams/litre, the percentage of indium in the deposit varies from 40 per cent to 1 per cent.  In another example (no anode given) the deposit contained about 3 per cent indium. According to an example in the first Provisional Specification (no anode given) a deposit was obtained containing about 10 per cent lead and the remainder indium.  Specifications 615,320 and 637,154, [Group XXXVI], are referred to.
Patent GB-1393894-A (GB)
Title: Zinc plating solutions
IPC: C25D3/22
Filed: 1971-07-20
Abstract: 1393894 Electro-depositing zinc ALBRIGHT & WILSON Ltd 22 June 1972 [20 July 1971] 33891/71 Heading C7B Zn is electro-depositing e.g. on to degreased mild steel from an aqueous solution comprising (A) zinc sulphamate and (B) HBF 4  and/or one or more salts thereof (e.g. Zn, NH 4 , Na or K) and/ or H 3 BO 3  + HF, with or without (C) a brightening agent such as H 3 BO 3 , an aromatic or unsaturated aliphatic (di) sulphonic acid e.g. 2-butyne-1,4-disulphonic acid or benzene, toluene, naphthalene or alkyl sulphoric acid or alkali metal salt thereof, a sulphonamide or sulphimide e.g. p-toluene or benzene sulphonamide or o-benzoyl sulphimide, o-sulphobenzaldehyde, formaldehyde, chloral or bromal hydrate, coumarin or butyne-diol, and/or (D) a levelling agent such as gelatine (gluten), glucose, starch, glue, goulac, fecula, polyethylene glycol, triethanolamine, gum or guar, hydroxy ethyl starch, casein, albumin, carboxymethyl cellulose, polyvinyl alcohol or alkali metal silicate. Zn 0 or sulphamic acid may be added to adjust the pH to 2-5.
Patent GB-618580-A (GB)
Title: Improvements in or relating to signs
IPC: G09F7/02
Filed: 1946-11-16
Abstract: 618,580. Signs. HIRST, M. Nov. 16, 1946, No. 34024. [Class 3(ii)] A symbol, Fig. 1, is made of sheet metal or other suitable material and has one or more integral teeth, prongs or the like B, each tooth having an integral flange extending angularly therefrom along one longitudinal edge. The teeth enable the symbols to be fixed to a support or be interchangeably and slidably mounted in a slot in a carrier. The letters may be cast but are preferably stamped out of sheet material, each tooth B being made by cutting a slit E in a projecting part of the sheet and bending a part C at right angles. The teeth may extend longitudinally of the sheet as at F or at right angles as at G. They may be uniform, crosssection or pointed, be serrated to form a screw-thread or have corrugated edges. The carrier M, Fig. 3, is of channel section with L-shaped slots in its top surface. The teeth are inserted in the slots and the symbol is slid along so that the surface O engages the part E of the tooth.
Patent GB-884538-A (GB)
Title: Apparatus for direct injection of light fuel into internal-combustion engines
IPC: F02M59/00
Filed: 1959-10-08
Abstract: 884,538. Fuel injection pumps. PAGLIANO, M. Oct. 8, 1959 [March 17, 1959] No. 34125/59 Class 102(1). A housing 1 is divided in to two chambers by a bellows 2 the interior of which is connected to an injection 8 and a fuel supply through a valve 10. The exterior of the bellows is subjected to pulsing pressure by a pump 4 and on expansion a valve 3 on the bellows closes the pump connection. In a modification the bellows is replaced by a liquid in a U-shaped housing, each limb forming a separate chamber one being connected to the injection and the other to the pump, the latter chamber having a float valve.
Patent GB-1143989-A (GB)
Title: A heating arrangement for motor vehicles
IPC: B60H1/18
Filed: 1967-07-25
Abstract: 1,143,989. Ventilating vehicles. DR.-ING. h.c.F. PORSCHE K.G. 25 July, 1967 [29 July, 1966], No. 34185/67. Heading F4V. [Also in Division F1] A fan in a vehicle heating system has means for varying the effective propelling area of the fan blades so that the volume of heated air supplied to the passenger compartment can be increased at low engine speeds. As shown, the radial flow fan 3 includes blades 28 and discharges air into a heating conduit 6 and into manifold 5 for cooling the engine. Conduit 6 supplies two further conduits 14 (one of which is shown) which embrace the vehicle exhaust pipes 10 and include flap valves 17 controlling the relative proportion of air supplied to the passenger compartment and, through a bleed opening 18, to atmosphere. The fan includes an axially movable shroud 26 which is acted on from one side by a lever 32 through the intermediary of a spring 34, and from the other side by a centrifugal governor (Fig. 3, not shown). The lever 32 and valves 17 are manually actuated through a common linkage so that as the valves are opened, the shroud 26 moves to the right to increase the effective width of the blades 28. Increasing engine speeds cause the governor to move the shroud to the left against the action of the spring 34. The engine may be liquid cooled and the fan casing, rather than a shroud plate, may be moved axially to vary the blade width.
Patent GB-818761-A (GB)
Title: Improvements in or relating to measuring apparatus, more especially for electric devices for testing flue gas
IPC: G01N27/18
Filed: 1956-11-08
Abstract: 818,761. Testing flue gases. LANDIS & GYR A.G. Nov. 8, 1956 [Nov. 9, 1955], No. 34198/56. Class 40 (1). In a measuring apparatus for testing of flue gas a measuring chamber 12 is connected by one or more apertures 17 to a horizontal flow chamber 11 longitudinally traversed by the gas to be tested, each end of the flow chamber being terminated by " flow rectifiers " 18, 19. As shown, the flow rectifiers 18, 19 and the apertures to the measuring chamber are formed by a single suitably bent perforated metal sheet. Two horizontal platinum measuring wires 22 (situated one behind the other), each tensioned by a spring portion 21, are provided in each measuring chamber, and are preferably separated by a distance at least twice that between one of the wires and the neighbouring wall of the chamber. Changes in the relative concentrations of constituents of the gas are measured by determining the variation in electrical conductivity which varies according to its rate of heat dissipation which in turn depends on the composition of the gas. The variations in electrical conductivity are compared in a Wheatstone bridge circuit with that of a reference wire in air. The arrangement of flow rectifiers is stated to make the flow of gas uniform over the cross-section of the flow chamber and approximately uniform over the length of the chamber thereby minimizing instability of flow even when changes in the rate of flow occur in the gas under test.
Patent GB-1291527-A (GB)
Title: Valve assembly for controlling a double-acting working cylinder and piston
IPC: F15B13/01
Filed: 1970-07-15
Abstract: 1291527 Fluid pressure motor control circuit VOLKSWAGENWERK AG 15 July 1970 [17 July 1969] 34287/70 Heading F1P A double-acting hydraulic or pneumatic operated piston and cylinder device for lifting a load 3 is held against the load when a 5-way 3- position spool valve 10 is in its central position shown in which position working fluid admitted to a supply port P opens adjustable spring-loaded lift valves 25, 26 to gain access to passages A2, B2, 23, 24 in the valve casing, recess 11 in the valve spool and conduits leading to opposite ends of the cylinder 1. In operation and to lower the load 3 a magnetic valve 20 is opened thereby admitting fluid pressure through a passage 18 to a control chamber at the right-hand end of the valve spool which is then moved to the left and thereby connects the supply port P with the upper side of piston 2 and connects the lower side of the piston to an exhaust port R and an adjustable throttle valve 7. Valves 25, 26 remain closed until the valve spool is re-centered whereon valves 25, 26 open to provide pressure fluid to both ends of cylinder 1. Excess pressure developed during braking of piston 2 is vented through one or other of relief valves 33, 34.
Patent GB-1495612-A (GB)
Title: Method of recognizing interpreting and subsequently storing elements out of a sequence of characters of a digital information
IPC: H04Q1/36
Filed: 1975-08-19
Abstract: 1495612 Automatic exchange systems STANDARD TELEPHON UND RADIO AG 19 Aug 1975 [23 Aug 1974] 34406/75 Heading H4K In a method of detecting marks and spaces including marks of two different durations in a dial or other two level signal train received on a line, the line is sampled with the samples in groups short compared with the shortest mark or space, for each group of samples a logical 1 or 0 condition is allocated, the number of consecutive 1 or 0 conditions is compared with a first threshold value (corresponding to a minimum acceptable signal persistence), a valid mark or space signal being recognized if this first threshold value is exceeded, and when a valid mark signal has been recognized subsequently allocated 1 and 0 conditions are accumulated in respective stores and compared respectively with a second threshold value (corresponding to a minimum acceptable signal persistence for a mark of the longer duration) and with a threshold value corresponding to the minimum acceptable break persistence. As described a logical 1 or 0 condition is allocated to each group of samples by counting the number of 1 samples detected in a given time allocated to that group. Consecutive allocated logical 1 or 0 condition are counted in respective second and third counters, the counts of which are compared with threshold values corresponding to minimum acceptable durations for short marks, long marks, short spaces and long spaces respectively. These corresponding to dial pulse, inter-digit pause, dial eak and end of dial train respectively.