baber/WOPTO huggingface dataset:
Patent GB-977584-A (GB)
Title: Rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1963-11-14
Abstract: 977,584. Rotary regenerators. GENERAL MOTORS CORPORATION. Nov. 14, 1963 [Dec. 18, 1962], No. 44987/63. Heading F4K. A rotary regenerative heat-exchanger matrix 9 comprises an annular porous body which permits the simultaneous flow of a heating fluid and a fluid to be heated through the body from one side to the other for heat exchange between the fluids by means of the body, the matrix including a plurality of angularlyspaced-apart plates 36 (Fig. 3) lying substantially parallel to the direction of fluid flow and porous material between said plates, the plates projecting slightly from the porous material on each of said sides to co-operate with seals, the plates each comprising a flexible sheet extending from one said side of the matrix to the other and two bars 42 and 43 fixed to the sheet and extending generally parallel to the matrix sides, the bars being thick relative to the sheet and transversely narrow relative to the edge to edge distance of the sheet and having different co-efficients of thermal expansion, the bar lying toward the hotter side of the matrix having a lower co-efficient so that the expansions of the bars are approximately equal counteracting the tendency for the sheet to bow at the working temperature. In one rotation of the matrix it passes twice through a diaphragm 11, once at each of the seals 13 and 14. A cool air zone 18 may be supplied with air by the compressor of a gas-turbine engine, said air passing through the matrix to a hot air zone 19. Combustion chambers connected to said hot air zone discharge through a turbine into a hot gas zone 23 from which exhaust gases pass through the matrix to a space 25 and thence the atmosphere. The annular body is held in position by an annular ring 28 and is rotated by a gear ring 29. Stiffeners 31 are located at intervals around the periphery of the drum. The plate 36 may be thin and corrugated, the corrugations being welded to the bars 42, 43.
Patent GB-1140756-A (GB)
Title: High density ammonium nitrate granules
IPC: C01C1/18
Filed: 1966-10-07
Abstract: 1,140,756. Ammonium nitrate. CHEMICAL & INDUSTRIAL CORP. 7 Oct., 1966 [8 Oct., 1965], No. 45010/66. Heading C1A. Ammonium nitrate prills of moisture content not greater than 0À25% by weight, have dispersed therein from 0À25% to 4À0% of a nucleating agent of particle size not greater than 40 microns, which is insoluble in molten ammonium nitrate. Preferably the prills are uncoated and the additive is one or more of aluminium silicate-containing clays, calcium silicate, and magnesium silicate-containing clays. The prills are produced by mixing the additive with molten ammonium nitrate and allowing the mixture to pass through prilling orifices and fall freely through a countercurrent flow of cooling gas.
Patent GB-1159332-A (GB)
Title: Telephone Extension System
Inventor: DRIVER JOEL PHILLIP
IPC: H04M1/72502
Filed: 1966-10-07
Abstract: 1,159,332. Exchange systems. AMERICAN TELEPHONE EXTENSION CORP. 7 Oct., 1966, No. 45029/66. Heading H4K. In a radio communication system, which may have a direct link with a telephone exchange, the transceivers employ a common carrier frequency, and each transmitter sends the carrier modulated with a continuous identification tone. The identification tone is filtered out at a remote receiver and used to gate the voice signals. Thus a plurality of remote receivers each tuned to the common carrier frequency yet adapted for different identification tones may be called individually. As described the transceivers are normally in their receive mode and can communicate through a base station. To initiate a call a subscriber switches his transceiver to the transmit mode, thus sending a self identifying tone modulated on the carrier frequency. A base transceiver responds to the reception of the tone by closing a contact to link a telephone line and couple the received voice signals to line. The contact is retained closed by a delay circuit which operates for say 30 seconds when the transceiver is switched back to the calling mode thus avoiding a hung up appearance. The subscriber then operates a telephone dial on his transceiver causing the tone signal to be interrupted in accordance with the required destination. A circuit at the base station responds to the interruptions to operate a dialling contact in the telephone line generating conventional dialling pulses which may be used to control connection to a remote telephone. The base station may alternatively receive a call for a remote transceiver from the telephone and transmit a carrier on which is modulated the identification tone of the required transceiver. The remote transceiver responds by applying a ringing tone to the microphone. The transceiver may include a telescopic antenna which when in the contracted form closes a switch to by-pass the volume control and thus increase the intensity of the ringing tone. The base station may alternatively act as a relay station between two remote transceivers by communicating with each using the corresponding tone, or between a remote transceiver and a conventional transceiver by suppressing or inserting the tone and shifting the carrier frequency as required.
Patent GB-1012042-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F5/24
Filed: 1961-12-18
Abstract: 1,012,042. Change-giving sales machines. R. LIEGEL-SEITZ, E. LIEGEL-SEITZ, E. LIEBLER, H. LIEBLER, H. SEITZ, H. SEITZ, and I. SEITZ, [trading as AUTOMATENBAU - GESELLSCHAFT]. Dec. 18, 1961 [June 16, 1961], No. 45199/61. Addition to 977,735. Heading G4V. The vending machine of the parent Specification is modified by arranging for the article delivery drawers 10a-10k, Fig. 1, which are arranged side by side in a row, to be connected to a common change-giving device 12, 13 by operating rods 15a-15d extending along the row and operative upon horizontally pivoted levers 17a, 17b, 18a, 18b, Fig. 2, each of the levers being adapted to act on the delivery slide of one or more of the coin tubes 14a-14d and 16a-16d of the change device so that at least one of the operating rods is adapted to actuate the delivery slide of two or more coin tubes. Transmitting levers 19a-19k on the respective drawers are selectively engageable with stops 21a-21d on the rods 15a-15d by clips 20a-20d which are displaceable on the levers. The levers 15a-15d are connected to corresponding shafts 30a-30d which carry the levers 17a-17d; the levers 17a, 17b on the shafts 30a, 30b actuate the slides of three coin tubes 16a, 16b, 16c and one coin tube 16d, respectively, and the levers 18a, 18b on the shafts 30c, 30d each operate the slides of two coin tubes. In the modification shown in Fig. 3, the operating lever 15c transmits the movement of a drawer to one lever (shown in broken lines) of the coin change device and the operating lever 15a similarly acts on three such levers; each of the four levers of the change device acts on a corresponding one of four delivery slides of the change device. The rods 15a, 15c are carried in a guide block in which they can be set at different levels so as to be operative on different levers of the change device; the rod 15a may, for example, be raised in its guide block so that it operates on two, instead of three, change giving levers.
Patent GB-1498119-A (GB)
Title: Extracts of vegetable materials
IPC: A23F3/34
Filed: 1975-10-31
Abstract: 1498119 Vegetable extracts SOC DES PRODUITS NESTLE SA 31 Oct 1975 [17 Dec 1974] 45238/75 Heading A2B Vegetable extracts which dissolve instantaneously in water e.g. coffee, chicory, tea and herbel decoctions have a density of 50-300 gm/litre and have a porous continuous structure and a smooth surface. The grains may be 1 to 15mm. in diameter and have a crushing strength of 2.5 to 7.5 Newtons. The moisture content may be up to 6% and the extract may be capable of absorbing up to 20% by weight of fats. The extracts may be made by extruding under pressure of 1-10 bars in powder or paste form into a subatmospheric pressure of 0.01-0.3 bars and cutting into fragments (the paste containing up to 10% water), at 60-125C. The herbal decoctions may be mint, lime blossom, vervain or camomile. Reference is made to Specification 1498120.
Patent GB-995597-A (GB)
Title: Catalysts and process for their preparation
IPC: B01D53/94
Filed: 1963-11-15
Abstract: Oxidation catalysts comprise a support having a surface area of at least 100 m.2/gm. carrying 3-15% CoO and 0,01-0,1% Pd.  Specified supports are a -Al2O3, SiO2-Al2O3, SiO2-MgO, ZrO2, ZrO2-Al2O3 and ZrO2-MgO, in nodular form, e.g. 3-10 mesh.  Examples are given.
Patent GB-1153935-A (GB)
Title: Improvements in or relating to Polyester Resins
IPC: C08G63/86
Filed: 1967-10-05
Abstract: 1,153,935. Polyalkylene terephthalates. FMC CORP. 5 Oct., 1967 [4 Nov., 1966; 7 Nov., 1966; 15 Nov., 1966], No. 45442/67. Heading C3R In a process for making polyalkylene terephthalates by effecting an esterification or ester-interchange reaction between an alkylene glycol and terephthalic acid or a dialkyl terephthalate and polycondensing the resulting reaction product, antimony oxalate or antimony oxysulphide is used as the polycondensation catalyst. Suitable esterification catalysts are calcium acetate and triethylamine while suitable ester-interchange catalysts are lithium hydride and zinc acetate.
Patent GB-1482657-A (GB)
Title: Electrostatographic copying machine with ridged transfer roller
IPC: G03G15/16
Filed: 1974-10-22
Abstract: 1482657 Transferring electrostatic images XEROX CORP 22 Oct 1974 [24 Oct 1973] 45573/74 Heading B6C The transfer roller of an electrostatic copying machine is provided with a ridged surface to prevent copy sheets from being wrapped around the roller during transfer. The roller may be provided with a ridged textile covering, e.g. nylon, Fig. 2, (not shown), may have a ridged surface formed by grinding, may be provided with a helical ridge by winding a nylon monofilament around its core, Fig. 3 (not shown) or may be embossed or moulded. The ridged surface lowers the effectiveness of the electrostatic attraction between roller and copy sheet.
Patent GB-1379949-A (GB)
Title: Luminescent silicates
IPC: C09K11/77
Filed: 1972-10-04
Abstract: 1379949 Luminescent materials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 Oct 1972 [7 Oct 1971] 45748/72 Heading C4S A divalent Eu activated silicate has the formula Sr x Ca y Ba z Mg q Eu p Al 2 Si 2 O 8  where x + y + z + q + p = 1 : 0À70 # q # 0À05, 0À50 # p # 0À001 and p + q # 0À75 up to 10% Al may be replaced by B. A phosphor is prepared by mixing BaCO 3 , MgCO 3 , Al 2 O 3 , AlF 3 , SiO 2  and Eu 2 O 3  and heating three times in a N 2 -H 2  stream at 1400 C. The phosphors are used in high and low pressure Hg discharge lamps and C.R.Ts. Reference has been directed by the Comptroller to Specification 1,170,598.
Patent GB-1423189-A (GB)
Title: Damp pulp moulding
IPC: B27N3/08
Filed: 1973-10-01
Abstract: 1423189 Moulding damp pulp E H CUMPSTON JNR 1 Oct 1973 45780/73 Heading B5A In a method of moulding a damp fibrous pulp containing 20-40% by weight of solid material, the pulp is fed to the nip 27 of a helically grooved feed roller 19 and a rotor 18 comprising teeth 23 spaced axially and radially whereby the pulp fibres are repeatedly acted upon by the teeth to straighten them and remove air and are fed to the inlet of a shaping channel 22 through which they are conveyed; the shaped product is then delivered to a dryer. The fibres are fed over a doctor blade 20 on to a ridged endless belt 21 supported by a table 30 and into the shaping channel comprising a fixed blade assembly 35, 36 and a vibrating blade assembly 37 comprising a part 38 carrying blades 39, 40. The latter are given an elliptical motion by an eccentric shaft 41 which assists in moving the fibres away from the rotor and into the channel. The pulp may be produced from waste paper soaked in water and from which excess water is drained; the damp waste is then defibred and refined before being fed to the nip 27.
Patent GB-945158-A (GB)
Title: New steroid compounds and processes for their formation
IPC: C07J7/00
Filed: 1960-06-16
Abstract: The invention comprises pregna-3,20-dione compounds having the formula: <FORM:0945158/C2/1> wherein R and R1 both represent cyclic ketal groupings, R2 represents a hydroxyl group in the a -orientation and a hydrogen atom, the oxygen atom =O of a keto group or a hydroxy group and a methyl group, or alternatively R1 is the oxygen atom =O of a keto group and R and R2 remain as before or alternatively both R and R1 represent the oxygen atom =O of a keto group and R2 is as before; when R represents the cyclic ketal group then a double bond exists between the 5- and 6-positions but when R represents the oxygen atom =O then the double bond lies between the 4- and 5-positions; and processes for the preparation thereof by ketalising 12a -hydroxy-progesterone at the 3- and 20-positions, oxidising the ketal thus obtained to produce the corresponding 3,20-dicyclic ketal of pregn-5-en-12-one, reacting this compound with a Grignard reagent to form the corresponding 3,20-dicyclic ketal of 12 #x-hydroxy12 #x-methyl-pregn-5-ene, which compound may be hydrolysed to liberate one or both of the protected ketone groups by acid hydrolysis. Ketalisation may be effected with ethylene glycol in the presence of p-toluene-sulphonic acid, oxidation with chromic acid and the Grignard reaction with methyl magnesium bromide.
Patent GB-1372419-A (GB)
Title: Continuous process for the manufacture of bars of soaps having a  plurality of layers of different colours
IPC: C11D13/18
Filed: 1971-10-04
Abstract: 1372419 Extruding multicoloured soap BLENDAX-WERKE R SCHNEIDER & CO 4 Oct 1971 [7 Oct 1970] 46063/71 Heading B5A [Also in Division C5] A soap or detergent material bar, comprising different coloured layers 8, 9 is continuously extruded from a die 7 tapering towards its outlet and to which the material of each layer is supplied along separate and parallel extrusion paths defined on either side of a partition 3, and comprising a hopper 1 containing soap chips, upper parallel screws 2, and a vacuum chamber discharging vertically downwardly to lower parallel screws 6. The extruded bar may be embossed or trimmed. The screws are enclosed by a cooling jacket and may be driven by the same means. Where one layer is white, titanium dioxide may be used to obtain an opaque effect, and a brightening agent may be added. The soap may be based on stearic and oleic acid, or the alkaline salts of other fatty acids that are obtainable by saponification of palm, olive or tall oil. Small amounts of synthetic straight chain and/or branched fatty acids may be employed as foaming and superfatting agents. Alternatively, synthetic detergents may be employed such as alkyl sulphates, alkylarylsulphonates. Olefinic sulphonates, esters of isethionic acid, and the alkali salts thereof. An amount of 0À05 to 5À0% by weight of various specified anti-microbial substances may be included, and various specified reducing agents may also be included to prevent discoloration of bars containing the anti-microbial agents. Skin protectors and re-fatting agents may also be included, e.g. lanolin, fatty alcohols, fatty acid alkylolamides, lecithin, carboxymethyl cellulose, fatty acid/albumin condensates, and albumin hydrolysates.
Patent GB-1037010-A (GB)
Title: Improvements in and relating to threaded inserts
IPC: F16B37/12
Filed: 1964-11-12
Abstract: 1,037,010. Bolt-hole bushes. R. NEUSCHOTZ. Nov. 12, 1964 [Nov. 26, 1963 (2); Oct. 8, 1964], No. 46083/64. Heading F2H. [Also in Division B4] A thin-walled insert 11 having external threads 19 adapted to be screwed into a carrier part 10 and having internal threads 17 to which a screw 18 or stud may be connected is provided with a tubular locking portion 22 having axially extending serrations 23 which bite into the carrier part 10 on radially outward expansion of the locking portion 22 against the wall of the carrier. The external threads 19 of the insert have minor diameter surfaces 20 which are spaced radially outwards farther than would be the normal diameters of the standard threads. The locking portion 22 is counterbored at 26, the diameter 27 of the counterbore being greater than the minor diameter of the internal threads 17 of the insert. The maximum diameter portions 24 of the serrations are close fits in the threads of the carrier part. Locking portion 22 is provided with one or more driving notches 36 whereby the insert is screwed into the carrier part 10 by a tool 38 (see Division B4). After assembly, the portion 22 is expanded outwardly by a cylindrical tool 43 which is forced down into the counter bore 26 so that the serrations 23 bite into the threads 13 of the carrier causing the metal of the threads to cold flow into the space between threads of the carrier. In a modification, Fig. 6 (not shown) the serrations 23 extend somewhat diagonally or helically. In another modification, Fig. 8 (not shown), the serrations are less deep radially than the serrations 23. In another modification, Fig. 9 (not shown), the diameter of the counter bore corresponds to the major diameter of the internal threads, the counter bore having a straight cylindrical surface.
Patent GB-1199974-A (GB)
Title: Turbine Blade Seal Assembly
IPC: F01D11/08
Filed: 1967-10-09
Abstract: 1,199,974. Turbines. UNITED AIRCRAFT CORP. Oct.9, 1967 [Nov. 2, 1966], No.46127/67. Heading F1T. Turbine rotor blades 6 are sealed at their tips by a circumferential sub strip 34 carried by a generally circumferential retainer 32 which can expand radially while being maintained concentric with the turbine axis by projections 30 radially slidable within radial slots 28 provided in a flange 16 (or by similar projections slidable within radial slots provided in a ring 24 which supports stator vanes 26), an annular baffle 36 extends within the annular space between the sub strip and the retainer to form a passageway 43 communicating with cooling-air passageways formed in the retainer, and the sub strip, retainer and baffle are connected by a pin 44 so that they expand radially as a unitary assembly. Another annular baffle 38 may be provided to afford a further passageway 39. The turbine forms part of a gas turbine engine having a compressor from which air is bled to pass between outer and inner casing walls 8, 10 and through openings in a ring 22 and thence through the above-mentioned passageways to cool the retainer 32. The thermal expansion of the seal assembly relative to that of the rotor 4 is thereby controlled to keep the blade tip clearance to a minimum under all operating conditions. To allow for the thermal expansion, the sub strip 34 is axially slotted or is divided into segments and the retainer 32 has axially extending grooves.
Patent GB-1197535-A (GB)
Title: Superconductor Generators
IPC: H02K55/00
Filed: 1968-09-27
Abstract: 1,197,535. Superconducting generator. STEMENS A.G. 27 Sept., 1968 [29 Sept., 1967], No. 46165/68. Heading H2A. In a superconducting generator where current is induced in a closed superconducting loop by traversing a plate-like part of the circuit with a confined magnetic field, the strength of the field is varied so that the current flowing in the portion of the plate next to be rendered normal by movement of the field is reduced in magnitude before it is made normal. The strength of the magnetic field is always greater than the critical field of the plate-like part which may be planar or cylindrical and can consist of sheet metal, thin superconductor layers or wires or tapes connected in parallel. In operation, electromagnet 10 is traversed from A-B across wires 1-6 and then is returned to A outside the loop and crosses one of wires 7, 8 which are made of harder superconducting material and connect wires 1-6 to coil 9. As the magnet moves from the position shown to cross-wire 4 it is necessary to reduce the current in wire 4 to near zero and this is done by reducing the strength of the field so that a circulating current is induced in the minor loop defined by wires 3, 4 and the respective parts of wires 7, 8 in a direction to boost the current in wire 3 and buck the current in wire 4. The magnetic field strength is altered by motor-driven potentiometer 14, 13 which varies the excitation current of the magnet and is controlled in accordance with the current flowing in the wire next to be made normal. The current is measured by magnetoresistors 16 which are connected through selector switch 18to the operating coil of relay 15 which controls the current supply to motor 14 and has contacts 20 normally closed. As the excitation decreases so a current is induced in wire 4 in opposition to the existing current thus reducing the magnetic field affecting resistor 16 until its resistance falls sufficiently that relay 15 operates and contacts 20 are opened. When the magnet is returned to point A the excitation current is returned to its initial value. When a superconducting plate is used instead of the wires shown, sensing devices, e.g. Hall plates, are provided along or adjacent to the path of the normal region to measure the current in the superconductor adjacent the normal region. Reference has been directed by the Comptroller to Specification 1,014,527.
Patent GB-1071484-A (GB)
Title: Improved alarm device for fitting to boxes or other articles
Inventor: STEMBRIDGE GORDON
IPC: G08B13/02
Filed: 1963-11-22
Abstract: 1,071,484. Theft alarms. R. L. PEARCE & PARTNERS (NORWOOD) Ltd. Nov. 23, 1964 [Nov. 22, 1963], No. 46166/63. Heading G4N. An alarm unit comprises a movable body 21 which normally retains an alarm actuating member 26 in a cocked position, such that any movement of the unit releases the alarm, and a rotary member 16 which inhibits the alarm in one position by holding the member 26 away from the body 21. The unit is incorporated into a jewel box, and any movement of the box displaces the resilient arm 27 from the body 21 allowing member 26 to rotate and close alarm contacts 30, 31. In order to inhibit the alarm a cam 17 is rotated by means of a key to engage member 26 and maintain the contacts 30, 31 open. The cam may be rotated by the key associated with a lock on the box. Instead of the alarm device 33 an electronic howler, a recorded message or a non-electric device may be employed.
Patent GB-1462236-A (GB)
Title: Gas purification porcess
IPC: C10G5/04
Filed: 1974-10-25
Abstract: 1462236 Purifying gas FLUOR CORP 25 Oct 1974 [29 Oct 1973] 46310/74 Heading C5E A process for the removal of H 2 S, CO 2  and water from a gaseous hydrocarbon stream comprises the steps of contacting the gas in an absorber 2 with a lean absorbent comprising a hydroxyamino ether of general formula HO- [(CH 2 ) x -O]y-(CH 2 )z-NH 2  (x is 2, 3; y is 1 to 4; z is 2 or 3), separating the thus-treated gas and passing via line 4 to a heat exchanger 5, further lean absorbent being dispersed in the gas at 7 so that on cooling of the mixture of gas and absorbent in the heat exchanger the residual moisture in the gas is condensed into the absorbent, the dry, acid-gas-free gaseous hydrocarbon is separated at 11 and the used absorbent passed from the separator 11, together with the used absorbent from contactor 2, to a regenerator 14. The product gas has a moisture content of not more than 7 pounds of water per M.M.S.C.F. of gas. The absorbent is preferably an aqueous solution containing 60-75% of the hydroxy amino ether. Examples given for the ether are #, #<SP>1</SP>-hydroxy amino ethyl ether and #-hydroxy (#<SP>1</SP>-amino ethoxy) ethyl ether.
Patent GB-1022242-A (GB)
Title: Vibratory pile driver
IPC: E02D7/18
Filed: 1962-11-19
Abstract: 1,022,242. Pile driving. A. G. BODINE. Nov. 19, 1962, No. 46575/65. Divided out of 1,022,241. Heading E1H. [Also in Division F2] The subject matter of this Specification is identical with that described in Specification 1,022,241 but the claims differ.