baber/WOPTO huggingface dataset:
Patent GB-1026215-A (GB)
Title: Improvements in self regulating reciprocating pumps,in particular for the injection of fuel into internal combustion engines
IPC: F02M59/32
Filed: 1963-03-26
Abstract: 1,026,215. Fuel injection pumps. POUR L'EXPLOITATION DES PROCEDES CHINIQUES ET PHYSIQUES. S.A. March 26, 1963 [March 27, 1962], No. 11863/63. Heading F1A. In a fuel injection pump a first piston 1 hydraulically drives a second piston or shuttle 8 which delivers liquid to an injector via a conduit 9. The delivery stroke of the shuttle 8 is stopped when it clears a spill conduit 11 and on its return stroke, the shuttle forces liquid through a conduit 16 into the pump working chamber 7. Flow through the conduit 16 is stopped during the delivery stroke of the piston 1, by the piston itself and a rotary member 18 acts as a throttle. Liquid delivery ceases when a groove 21 in the shuttle 8 communicates with a second spill conduit 20. The stroke of the shuttle is reduced as the pumping speed increases and eventually the chamber 7b is continually in communication with the spill conduit 20 via groove 21 and conduit 22. In an alternative embodiment, the cylinder 2 communicates directly with the working chamber 7b as well as the chamber 7 and the conduit 16 terminates in the space 5 (Fig. 2, not shown). In a further embodiment the piston 1 rotates and helical grooves located between circumferential grooves thereon establish communication between the two portions of conduit 16 on the downward stroke of the piston, the member 18 being replaced by an adjusting screw (Fig. 3, not shown).
Patent GB-219746-A (GB)
Title: An improved device for arresting mine cages or lifts on breakage of the winding cable
IPC: B66B5/24
Filed: 1923-05-02
Abstract: 219,746. Weighell, E. N. May 2, 1923. Catch gear of mine-cage type.-A bolt a slidably mounted in a casing b on the cage top is projected by a spring c into contact with the guide rope g when the hoisting rope breaks, and is normally held out of action by the pull of the hoisting rope on an arm p connected to a toothed quadrant m meshing with a rack k on the end of the bolt. After contact with the guide, the bolt is projected gradually and with increasing pressure by the following mechanism until the cage is stopped. The spindle n of the quadrant m is connected by bevel gearing to a vertical shaft v which is connected by worm gearing to a shaft y. A clutch z, 2 connects the shaft y with a shaft 3 which is connected by worm gearing to a shaft 6 carrying a friction wheel 7. The shaft 3, wheel 7, &c. are mounted on a slide 11 provided with a projection 13. When the rope breaks a cam t on the spindle n engages the projection 13 and moves the slide to engage the wheel 7 with the guide. The rotation of the wheel 7 through the gearing described above and the quadrant retards the projection of the bolt.
Patent GB-171339-A (GB)
Title: Improvements in automatic compression reducing gear for uniflow engines and the like
IPC: F01B17/04
Filed: 1921-04-25
Abstract: 171,339. Romeyn, J. April 25, 1921. Cylinders. - In uniflow steam engines, auxiliary clearance chambers are put into communication with the cylinders by automatically-operated valves having free opening but retarded closing movements. The valve c is balanced by a piston d as regards the pressure in the auxiliary clearance chamber connection b, and is connected to a piston e subjected to atmospheric pressure on one side and condenser pressure on the other. The chamber f containing the piston is filled with liquid controlled by a flap-valve i provided with a small hole j. When the condenser pressure rises, the flap valve permits rapid opening of the valve c. When the pressure falls, the return of the liquid through the hole j retards the closing movement of the valve. Multiple pistons and a double-beat valve may be used in lieu of the piston e and valve c respectively. A modification is described wherein the valve c is connected through a free-wheel device to a rotary shaft so that its closing movement is limited by the speed of the shaft.
Patent GB-836852-A (GB)
Title: Improvements in or relating to the production of ammonium nitrate
IPC: C01C1/18
Filed: 1958-04-15
Abstract: In a process for producing substantially anhydrous ammonium nitrate wherein gaseous ammonia is reacted with nitric acid at elevated temperature in a packed reaction zone free to drain at its lower end, steam and molten ammonium nitrate are removed from the zone and separated, the molten ammonium nitrate is contacted with an inert gas, cooled and solidified, excess acidity of the ammonium nitrate is eliminated by introducing anhydrous ammonia into the molten salt which is cooled and solidified within 2 mins. of the ammonia addition.  The molten NH4NO3 should be at 415 DEG  F. or below, and the inert gas contact may be with air in a stripping zone to reduce the moisture content.  The molten NH4NO3 may be deposited on flat, moving, endless cooling surfaces.  Reference has been directed by the Comptroller to Specification 805,199.
Patent GB-292315-A (GB)
Title: Improvements relating to loom pickers
IPC: D03D49/36
Filed: 1927-05-05
Abstract: 292,315. Helliwell, F. May 5, 1927. Pickers. - In overpick pickers of the kind formed from a blank wherein the end portions of the blank are bent upon themselves, the blank then being folded down the centre, the ends of the blank are folded upon themselves at a, and then again at a<1> before the blank is folded down the centre at a<2>. Filling-pieces may be employed, if required.
Patent GB-120564-A (GB)
IPC: B29D30/10
Abstract: 120,564. Goodyear Tire & Rubber Co., (Assignees of Harsel, W. B., and Nall, E. A.). Nov. 3, 1917, [Convention date]. Lift valves; actuating-mechanism. - In a tyre-making machine of the kind described in Specification 120,563, [Class 87 (ii), Moulding plastic &c. substances], a controlling-device shown in detail in Fig. 36, comprises a main inlet 366 and two outlets 367, 368 controlled by lift valves 372, 373, respectively. The valves are normally closed by springs 374 (and the pressure - fluid), and are opened by plungers 376 operated by a tumbler 381 fitted with an accelerating-spring 383.
Patent GB-997665-A (GB)
Title: Improvements in or relating to thermal exchange
IPC: F28F1/24
Filed: 1961-06-26
Abstract: 997,665. Heat exchanger tubes. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 26, 1961 [July 6, 1960], No. 12059/65. Divided out of 997,664. Heading F4S. [Also in Division G6] A heat exchange tube 6 is provided with fins 7 arranged in sets extending longitudinally of the tube, the fins of adjacent sets being inclined in opposite senses to the longitudinal axis of the tube and the fins being so shaped that when the tube is arranged in a cooling fluid flowing longitudinally of the tube, as indicated by the arrow 8, the height of each fin progressively increases from its upstream to its downstream edge. The fins are curved and of outwardly decreasing thickness.
Patent GB-158876-A (GB)
Title: Improvements in automatic apparatus for raising or forcing liquids
IPC: B01D21/18
Filed: 1920-04-30
Abstract: 158,876. Morin, A. Feb. 7, 1920, [Convention date]. Direct air-pressure apparatus, automatic; valves for pressure fluid, actuation of; valves for pressure fluid, arrangement of.-Apparatus for forcing liquids &c. comprises a forcing chamber 14 provided with inlet and outlet valves for the liquid and a vessel 2 opened at the top and enclosed at the bottom by a cover 3 on which is mounted an impervious flexible diaphragm 1. The diaphragm carries a tube 4 communicating with the space between the cover 3 and diaphragm, and carrying the inlet and exhaust valves 5, 6 for the pressure fluid. An adjustable spring &c. R balances the weight of the tube and valves. The vessel 2 has a syphon 11 or a hinged flap valve near the bottom. When the liquid rises in the chamber 14 it overflows into the vessel 2 and fills the tube 4 through a port 9. The two sides of the diaphragm are then exposed to the same hydrostatic pressure, and the pressure fluid opens the valve 5 and closes the valve 6. When the liquid in the chamber 14 has fallen to a certain level, the vessel 2 discharges into the chamber through the syphon or hinged valve while the tube 4 remains full. The pressure on the under side of the diaphragm is then greater than that on the upper side and the tube 4 is raised to close the valve 5 and open the valve 6.
Patent GB-1098284-A (GB)
Title: 7a-methyl-a-nor-b-homo-steroids and process for their manufacture
IPC: A61K31/57
Filed: 1965-03-22
Abstract: 7a b  - Methyl - 3,6 - dioxo - A - nor - B - homo-steroids (novel when they are of the androstane or pregnane series) are prepared by reacting 7a  - unsubstituted - 3,6 - dioxo - D 7 - A - nor - B-homo-steroids with a methyl magnesium halide with subsequent hydrolysis.  Compounds of the androstane, pregnane, cholane, cholestane, spirostane and cardanolide series and their 19-nor counterparts are mentioned.  In the products free hydroxy and keto groups may be released from ester, ether and ketal groups; keto groups may be reduced to hydroxyl with or without introduction of hydrocarbon groups; and hydroxy groups may be esterified or etherified.  The compounds of the invention, which have various steroidal properties, may be made up into pharmaceutical or veterinary compositions or added to animal feedstuffs.
Patent GB-182072-A (GB)
Title: Improvements in machines for use in the manufacture of biscuits and the like
IPC: A21C11/10
Filed: 1921-02-16
Abstract: 182,072. Baker, G. S. Feb. 16, 1921. Sheet-cutting machines.-In biscuit cutting and embossing machines the embossers are operated through a spring device inserted between the cutter cross-head and cam-operated arms connected to the embosser cross-head. As shown, the embosser cross-head 36 is connected by rods 39 to arms 37 pivoted at 38 and rocked by cams 44, the arms being connected to the cutter crosshead 28 by a telescopic device 46, 48 with an interposed spring 45 adapted to maintain the arms 37 in contact with the cams 44 and to ensure correct relative movements of the cutters and embossers. The invention is described in connection with the oscillating frames 5 described in Specification 181,770.
Patent GB-1470311-A (GB)
Title: Apparatus for sizing aligned holes through work pieces
IPC: F16B4/00
Filed: 1974-03-19
Abstract: 1470311 Sizing holes; riveting J O KING 19 March 1974 12144/74 Headings B3H and B3U [Also in Division F2] An apparatus for sizing aligned holes H through workpieces P comprises a mandrel 11 with an enlarging section 31, a pulling device for the mandrel and a back-up member 12 to prevent the formation of a lip as the mandrel leaves the holes. The back-up member 12 has a bore 36 equal to or smaller than the diameter of the holes and is expanded by the mandrel and discarded after use. The backup member may be shaped to fit a counterbore, Fig. 5 (not shown). The apparatus may be used with or without a tubular member 10 in the holes. The tubular member 10 is used to restrict rebound of the holes after sizing and is retained in the holes. The shank of the tubular member may have a thickened portion 116, Fig. 18, adjacent the head or at the end of the shank. The thickened portion may be provided by a sleeve 214, Figs. 16 and 20 (not shown). The back-up member 12 may be bonded to the flange 15 of the tubular member 10, the bonding breaking during the expansion of the back-up member. The mandrel may be lubricated and a protective coating may be applied between the tubular member and the workpieces.
Patent GB-1032945-A (GB)
Title: The preparation of heteroblock copolymers
IPC: C08F2/00
Filed: 1964-03-23
Abstract: Block copolymers of ethylene with higher alpha-olefins are made by a process in which a first monomer is polymerized in a polymerization zone and is then transferred to another polymerization zone where it is contacted with a second monomer to add a further polymer block to it.  The polymerization may be carried out in an apparatus consisting of two polymerization reactors through which the polymerized material is continuously circulated, polymerization of ethylene occuring in one reactor and polymerization of a different olefin in the other. The examples describe making ethylene-propylene block copolymers with the aid of a titanium trichloride-aluminium diethyl chloride catalyst, polymerization being carried out in the gaseous phase.
Patent GB-883436-A (GB)
Title: Improvements in or relating to a support means for building structures
IPC: E02D27/32
Filed: 1958-04-16
Abstract: 883,436. Supports for building structures. P.S.C. EQUIPMENT Ltd. April 16, 1958 [July 26, 1957], No. 12150/58. Class 20(2) Parts 8, 9 of a building structure liable to relative movement due for instance to temperature changes or flexing under load are supported on one another by two or more superimposed elements comprising rubber, &c. 1 bonded between metal plates 2, the contacting metal plates being bonded together with adhesive. The rubber may have slits 3 parallel to the steel plates to relieve tension in the rubber during large displacements to prevent bending of the plates. The elements may have transverse holes Fig. 6 (not shown). To allow for initial permanent shrinkage in a building the support elements may be mounted on two lubricated layers of rubber slidable on one another and backed by steel plates.
Patent GB-874575-A (GB)
Title: New basic ethers and a process for the production thereof
IPC: C07D295/088
Filed: 1960-04-06
Abstract: The invention comprises basic ethers of the general formula <FORM:0874575/IV (b)/1> wherein R represents an alkylene radical containing 4/7 carbon atoms, R1 represents a halogen or a C1 to C3 alkyl radical, a C1 to C3 alkoxy radical or a C1 to C3 alkylmercapto radical A represents a straight or branched chain alkyl radical, and X represents a secondary or tertiary amino group or a nitrogen containing heterocyclic radical the nitrogen atom of which is attached to A, and salts such as the hydrochlorides, and quaternary salts thereof, and the preparation thereof by reacting a 1-phenyl-cycloalkanol of the general formula <FORM:0874575/IV (b)/2> wherein R and R1 have the above significance, with an alkyl halide of the general formula Hal-A-Y wherein Hal represents a halogen atom, Y is the required organic basic radical or a halogen atom or a hydroxy radical, and if necessary converting the substituent Y into the required organic basic radical.  The nitrogen containing heterocyclic radical may be an unsubstituted or substituted piperidino, pyrrolidino, morpholino or piperazino radical.  A large number of examples of compounds falling within the scope of the above general formula are given.  1-(o- and p-chlorophenyl)-cyclohexanol, 1-(p-methylmercaptophenyl)-cyclohexanol, 1-(p-chlorophenyl)-cyclopentanol, -cycloheptanol and-cyclo-octanol, and 1-(o-onisyl)-cyclopentanol and prepared by a Grignard reaction from the required cycloalkanones and aryl halides.
Patent GB-545008-A (GB)
Title: Improvements in and relating to latches
IPC: E05B63/20
Filed: 1940-07-29
Abstract: 545,008. Latches. YALE & TOWNE MANUFACTURING CO. July 29, 1940, No. 12290. Convention date, Aug. 10, 1939. [Class 44] A spring latch 36 has pivoted thereon a spring lever 42 adapted to engage a fixed lug 45 on the casing to hold the latch in retracted position until, during the opening movement of the door, an auxiliary bolt 49 is cammed inwards by two striker plates and releases the lever by coaction between the surfaces 51, 52. While the bolt is retracted, a lug 48 on the tail holds the follower pin 37 in Fig. 3 position. When 42 is released by 49, the bolt can move outwards until a pawl 57 on the casing engages a shoulder 60 on the follower and prevents further movement. During the closing of the door, the bolt, owing to the clearance between the striker and the casing, does not move back sufficiently to put 42 in locking position, but it releases 57 from 60, so that 37 can turn to permit the bolt to be fully shot. The pawl 57 then engages another shoulder 61 on the follower and holds 37 in dead locking position.
Patent GB-296772-A (GB)
Title: Arrangement for the testing of resistances by means of a cross coil instrument
IPC: G01R27/02
Filed: 1928-04-27
Abstract: 296,772. Siemens & Halske Akt.-Ges. Sept. 9, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 288,288. Resistances, measuring.-In the Wheatstone-bridge arrangement for measuring resistances as claimed in the parent Specification, the angle of crossing of the moving coils is made between 40‹ and 60‹. As shown in Fig. 1, the directing-moment coil 1 and the galvanometer coil 2 are set on the spindle 3 at about 50‹ to one another. The core 5 is fixed by means of a support 6 which is mounted unsymmetrically at one end of one pole shoe. The pole shoes are bored to a circular section, whilst the cross-section of the core 5 is an ellipse. By this means the galvanometer coil 2 moves in a uniform field, while the coil 1 moves in a field such that its directing movement is proportional to its distance from the zero position, a uniform scale resulting. In the modification shown in Fig. 2, the core 5<1> is hollow and the directing- moment coil 1<1> is shortened at one side so that one side of the coil is situated inside the core 5<1>. By this means the core support 6' may be arranged symmetrically as shown, permitting a, larger angle of rotation of the coils. Only that portion of the cone over which the coil 1<1> moves need be made elliptical, the remainder being' circular.
Patent GB-1274635-A (GB)
Title: Printing blanket
IPC: C08L21/00
Filed: 1970-03-16
Abstract: 1,274,635. Offset printing blanket. CONTINENTAL GUMMI-WERKE A.G. 16 March, 1970 [20 Mareh, 1969], No. 12478/70. Heading B6C. An offset printing blanket comprises a fabric support, which does not exceed 0À7 mm. in thickness and may be made up of two layers 1, 2, separated by rubber 3, a compressible rubbercork layer 4 which is at least 0À6 mm thick and contains cork in excess of 70% of the volume of the rubber and a polymer cover from 0À2 mm. to 0À5 mm. thick. Preferably the proportion of the cork is 120% of the rubber content, ranging upward to 180%. The fabric layers may be of regenerated cellulose fibres, the rubber of the rubber-cork mixture and the cover may be butadiene-acrylonitrile polymerizate and glass and/or quartz splinters or balls may be embedded in the cover.
Patent GB-215955-A (GB)
Title: Improvements in or relating to labels or tabs for use with goods which have to be dyed
IPC: D06B23/00
Filed: 1923-05-10
Abstract: 215,955. Johnson Bros. (Dyers), Ltd., and Gunnell, O. May 10, 1923. Artificial silk &c., fabrics containing.-Labels for goods to be dyed are made of a woven fabric which resists the dye, so that a mark in indelible ink or the like is not rendered illegible in dyeing. A suitable fabric is a tape woven of acetate silk and cotton in such a way that the face of the fabric is composed substantially of the acetate silk.
Patent GB-713224-A (GB)
Title: Variable attenuation correcting electrical impedance network
IPC: H04B3/14
Filed: 1952-05-16
Abstract: 713,224. Multiplex systems; automatic volume control. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 16, 1952 [May 21, 1951], No. 12519/52. Class 40 (4) [Also in Group XL (b)] In an automatic volume control arrangement for a multi-channel carrier system, of the type in which two pilot currents control flat gain and slope, respectively, the slope is maintained at a mean value in the event of failure of the second pilot current. As shown, the pilot currents are extracted from the output of "go" amplifier 15 by filters 16, 18 and are applied by way of receivers 17, 19 to control variable attenuators 14, 13 respectively. Attenuator 13 controls flat gain in the normal way, e.g. pilot current heats a thermistor in an impedance network. The second pilot receiver 17, however, derives from the second pilot two control currents, of which the sum is constant, but which change in opposite senses when the pilot level changes. These two currents each control one of two thermistors in the attenuator 14 to vary the slope. In the absence of the second pilot current, these two control currents cease and the attenuator 14 produces a mean value of slope. The two thermistors form part of an impedance network (see Group XL (b)) which is connected either in series with, or in the negative feedback path of, an additional amplifier, the combination of the impedance network and the additional amplifier forming the attenuator 14.
Patent GB-152286-A (GB)
Title: Improvements relating to apparatus for taking kinematograph records
IPC: G03B9/10
Filed: 1920-05-06
Abstract: 152,286. Petra Akt.-Ges. f³r Elektromechanik. Aug. 13, 1919, [Convention date]. Kinematograph apparatus.-In a kinematograph camera an additional shutter is provided, this shutter being actuated by a spring controlled by the disk shutter and giving an exposure the duration of which is independent of the speed of the disk shutter. As shown, a cam c on the shaft a of the disk shutter b drives a pin d on the disk shutter and causes it to raise a spring e during every revolution. The spring e is held at f and acts as a spring both in a vertical plane and in an horizontal plane. As the spring is raised, a curved part g of it passes over a lever h attached to the hinge of the additional shutter k. When the pin passes out of contact with the spring, the spring returns to its normal position against the braking action of a dash-pot n. In doing so, the curved part g of the spring depresses the lever h and opens the shutter k, finally passing the lever and allowing the shutter k to close by the action of another spring. The valve of the dash-pot n may be opened more or less by adjustment of an indicator o over a time scale p so as to vary the exposure By pressing down a rod q the shutter k may be kept permanently open so that the exposure is effected by the disk shutter. The rod q has an arm r which engages the lever p and opens the shutter k, and also has a recess s into which the spring e snaps so as to be out of the path of the pin d.
Patent GB-179928-A (GB)
Title: Improvements in the manufacture, and production, of crucibles for use in fusing and casting refractory minerals such as silica, alumina and the like
IPC: C04B35/48
Filed: 1922-05-05
Abstract: 179,928. Ro´boul, M. de. May 12, 1921, [Convention date]. Addition to 165,051. Void [Published under Sect. 91 of the Act]. Refractory substances containing rare earths.- Crucibles for fusing refractory minerals are composed of a mixture of the oxides of zirconium, yttrium, thorium, and erbium, suitable proportions being zirconium oxide 60-80 per cent, yttrium oxide 13-17 per cent, thorium oxide up to 10 per cent, and erbium oxide 5-20 per cent. The thorium oxide may be omitted. Rare earths, such as cerium oxide, may be added to the foregoing ingredients in proportions up to 20 per cent. Cerium oxide or beryllium oxide may be substituted for the erbium oxide.
Patent GB-327871-A (GB)
Title: Process of producing well adhering coatings on asbestoscement-slate plates
IPC: B05D3/12
Filed: 1929-04-24
Abstract: 327,871. Hawenta-Platten-Ges., and Fricke, A. April 24, 1929. Ornamenting tiles and slabs.-The decorated surface of an asbestos-cement plate is formed by grinding the surface and then brushing it with a wire brush to remove the dust from the pores of the ground surface before spraying or otherwise applying a coat of colour and finally polishing the coloured surface. Heating and beating may be used to supplement the wire-brush treatment.