baber/WOPTO huggingface dataset:
Patent GB-1057137-A (GB)
Title: Improved lithium phosphate isomerization catalyst
IPC: C01B25/30
Filed: 1963-09-11
Abstract: Catalysts for use in the isomerization of alkylene oxides to the corresponding alcohols comprise trilithium phosphate granules containing an excess of Li such that the atomic ratio of Li to P is from 3.06 to 3.7.  The catalyst may be suspended in an inert liquid through which the alkylene oxide vapours to be isomerized pass. Examples of suitable liquids are aromatic and aliphatic hydrocarbons of mol. wt. above 120 and their derivatives, e.g. cyclanes, cyclenes, diphenyl oxide, diphenyl benzenes, terphenyls and dodecyl benzenes. Examples using the isomerization of propylene oxide to allyl alcohol are given.ALSO:Trilithium phosphate granules, containing an excess of Li such that the atomic ratio of Li to P is from 3.06 to 3.7, are used as catalysts in the isomerization of alkylene oxides to the corresponding alcohols.  The size of the granules may be from 1-100 microns.  The catalyst may be prepared by mixing together, in a period of less than 1 min., an aqueous solution of a lithium compound (e.g. hydroxide, nitrate, sulphate, chloride, bromide, iodide, chlorate, perchlorate or acetate) and an aqueous solution of an orthophosphate salt (e.g. Na, K or NH4) or orthophosphoric acid, such that the resulting mixture has a pH of 7-14, and then separating and drying the precipitate obtained. The temperature of the precipitation mixture may be 15-80 DEG  C. and the pH of the precipitation mixture may be adjusted by the addition to the solution of the lithium compound of an hydroxide in which the orthophosphate is soluble, e.g. NaOH or KOH. Examples using the catalysts in the isomerization of propylene oxide to allyl alcohol are given.ALSO:Trilithium phosphate granules containing an excess of Li such that the atomic ratio of Li to P is from 3.06 to 3.7 are used as catalysts in the isomerization of alkylene oxides to the corresponding alcohols.  The size of the granules may be from 1-100 microns.  Examples using the isomerization of propylene oxide to alyl alcohol are given.  Conventional preparation of the catalysts 13 is described.
Patent GB-1315832-A (GB)
Title: Data processing of programme loops
IPC: G06F9/32
Filed: 1970-07-24
Abstract: 1315832 Digital electric calculators; programme loops WESTERN ELECTRIC CO Inc 24 July 1970 [25 July 1969] 35885/70 Heading G4A A data processor has a high speed auxiliary store in which the first instruction and the address in the main memory of the second instruction of a programme loop are stored so that the first instruction does not have to be retrieved from the main memory of the processor on each iteration of the loop. As described programme instructions are stored in the programme store 10 and are gated via buffer 11 to the decoder 16. When the steps of the programme follow in sequence the address in the programme store address register 18 is incremented by 1 via gate 21 to obtain the address of the next instruction. When the register 11 contains a unconditional branch instruction the address portion specifies the location of the next instruction and decoder 16 enables gate 19 to transfer the address to register 18 whereupon the correct instruction is accessed from the programme store 10. When register 11 contains the first instruction of a loop which ends with a conditional branch instruction an identification bit is present in section 15 of the register and the contents of registers 18 and 11 are stored in the auxiliary store buffers 23 and 24 respectively. When the final conditional branch instruction of the loop passes to buffer 11, decoder 16 passes a signal on line 25 to gate 26. If the condition is not satisfied circuit 27 does not inhibit gate 26 and a signal is passed on line 29 which causes the contents of buffers 24 and 23, viz. the first instruction and the address of the second, to be read into registers 11 and 18 respectively and the loop is repeated. However if the condition is satisfied gate 26 is inhibited and the contents of register 18 are incremented in the usual way and the next instruction beyond the loop is fetched. The buffers 23 and 24 consist of a number of registers in push down configuration which enable nested loops to be processed. As a series of loops are encountered their respective first instructions and the addresses of their second instructions are fed down the stack of registers via delay circuits which allow each register to shift its contents to the next before it receives its new contents. The arrangement allows only completely nested loops to be processed, the address of the first instruction of the inner loop being read non-destructively from the top register as required until the loop is complete. The contents of the buffer are then shifted up one register again via delays and the process repeated for the next loop.
Patent GB-746470-A (GB)
Title: Improvements in and relating to the operation of excited synchronous motors
Inventor: CHOUDHURY SHAFI-UDD IN AHMED
IPC: H02P1/50
Filed: 1954-12-13
Abstract: 746,470. Synchronous motors and generators. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 13, 1954, No. 36039/54. Class 35. [Also in Group XXXVII] A variable speed alternator 1 supplies the armature 1 of a synchronous induction motor 2, the field windings 3, 4 of the alternator and motor respectively being supplied with excitation current'from a polyphase source 5 through a transformer 6 and rectifier group 9. The field windings of the machines are each arranged as described in Specification 647,681 with a first section short-circuited and with a second section along the quadrature axis connected to the rectifier 9. Since the field windings form a closed low-impedance loop circuit, the surge voltage, which is normally produced when switch 14 is closed, is damped. Resistors 12 are used for adjusting the starting torque of the motor, and resistors 13 regulate the field current. A partial short-circuit of the motor field winding for starting purposes is afforded by a resistor 15, which also produces an additional damping effect for the high induced voltages of the motor. Resistor 15 may be of the non-linear type, so providing a low resistance path at high voltages and a higher resistance path at low voltages. More than one motor can be supplied from the alternator, each being accelerated to synchronism with the machine 1 by closing the appropriate switch, whereupon the motors so interconnected with the alternator will remain in synchronism therewith at the desired speed.
Patent GB-1049397-A (GB)
Title: A mixture containing crotonylidenediurea
Inventor: BRANDEIS HANS
IPC: C05C9/02
Filed: 1963-09-13
Abstract: A mixture containing condensation products of urea and acetaldehyde (viz. crotonylidenediurea) having a nitrogen content disengageable by urease of 10 to 50% (preferably 10 to 30%), the values for nitrogen disengageable with urease from a cold aqueous solution and from a hot aqueous solution differing only slightly, is prepared either by reacting urea and acetaldehyde in a molar ratio of 1:1 to 2:1 or by reacting the condensation product of urea and acetaldehyde in said molar ratio in an aqueous solution kept at an elevated temperature and at a pH value of less than 3, adjusting the pH value to between 5 and 9 after the reaction, and drying the solid substances formed together with at least a portion of the liquid present in the reaction product. The first stage of the reaction may alternatively be commenced with a pH of more than 3 and then completed at a pH of less than 3.
Patent GB-768654-A (GB)
Title: Improvements relating to the reduction of sludge deposition from crude oils
IPC: C10G31/06
Filed: 1953-12-30
Abstract: Crude petroleum oil is treated to reduce its tendency to deposit a wax-containing sludge on storage by heating the oil from a temperature below 100 DEG F. and preferably not higher than 70 DEG C. to an "elevated temperature," which is defined as a temperature which if the oil be heated from a temperature below 100 DEG C. and then cooled, considerably less sludge is deposited on storage than if the oil had not been heated.  There is an optimum "elevated temperature" for any particular crude oil and a method of determining such optimum temperature is described.  The crude oil may come directly from an oil well and must first be cooled to a temperature below 100 DEG F. Paraffin and paraffinicasphaltic oils may be treated.
Patent GB-411934-A (GB)
Title: Improvements in or relating to packing machines
IPC: B65B19/02
Filed: 1932-12-21
Abstract: 411,934. Packeting by wrapping-up. STONE, A. A., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Dec. 21, 1932, No. 36192. [Class 94 (i).] Articles A or batches of articles such as cigarettes are fed to position II, from which they are to be fed transversely. In order to avoid damage owing to contact with the succeeding batch at position I, this batch is retracted slightly during the transverse feed. The retraction is effected by a metal plate or felt pad 11 pivoted at 13 to a bracket 12 which is pivoted at 14 to an oscillatable arm 8. A spring 15 holds the plate in its operative position, and, on the descent of the arm 8, the plate takes up the position shown in broken lines and moves the batch slightly backwards. In a modified construction, a brush is mounted at an incline on the arm 8, and the top and bottom of the article may be engaged. In another form, mechanically operated grippers may be projected through guides between which the articles are being fed, and to move them backwardly.
Patent GB-847684-A (GB)
Title: Improvements in or relating to undercarriage arrangements for rotary wing aircraft
Inventor: ROY ROBERT
IPC: B64C25/04
Filed: 1957-11-20
Abstract: 847,684. Rotary wing aircraft undercarriages. ROTAL, Ltd. Nov. 19, 1958 [Nov. 20, 1957], No. 36230/57. Class 4. A rotary wing aircraft undercarriage arrangement comprises two main ground engaging elements 19, 22 in tandem upon which the aircraft may be balanced by operation of the rotor or rotors 15, 16, and a subsidiary ground engaging element 26 disposed to one side of the main elements and forming with them a stable supporting arrangement. By balancing on the main elements only when the rotors are being driven by engines 13, 14, undesirable ground resonance effects are avoided. As shown, each main element 19 or 22 comprises twin wheels 20 or 23 on a retractable oleo leg 21 or 24, and is located beneath an engine 13 or 14. A subsidiary element 26 is provided on each side of the aircraft, and comprises a single wheel 25 on an oleo leg 27 of low stiffness, mounted on the end of a cantilever beam or a stub wing 18. The subsidiary element should clear the ground by a little more than the stroke of the oleo legs 21 and 24, and are not involved during touch down. When the rotor power is cut, the aircraft is caused or allowed to tilt to engage one or other subsidiary unit with the ground. Each subsidiary unit retracts inwards and sideways into its stub wing, or the oleo legs 27 may be of aerofoil cross-section, and be raised outwardly to increase the effective span of the wings. The wheels may be arranged for steering or castoring, or may be replaced by skids or pontoons.
Patent GB-1178796-A (GB)
Title: Cloth Laying Machine
Inventor: MERRILL EDWARD M
IPC: B65H45/103
Filed: 1968-01-31
Abstract: 1,178,796. Laying fabrics. CUTTING ROOM APPLIANCES CORP. 31 Jan., 1968, No. 36264/68. Divided out of 1178791. Heading D1S. The subject matter is similar to that disclosed in Specifications 1178791, 1178792, 1178793, 1178794, 1178795 and 1178797 but the claims relate to a fabric laying machine carriage reciprocable over a table and provided with means contacting opposed surfaces of the fabric to detect a transverse seam thereon and switch means responsive to the seam detecting means to interrupt operation of the drive of the carriage.
Patent GB-1221204-A (GB)
Title: A method for making rimmed steel ingots
IPC: B22D7/00
Filed: 1968-07-30
Abstract: 1,221,204. Casting processes. AIKOU KOGYO KAISHA Ltd. 30 July, 1968 [12 March, 1968], No. 36388/68. Heading B3F. [Also in Division C3] Rimming steel ingots are cast in an ingot mould having a casting cavity lined only on two facing sides or lined around its interior top part with a heat-insulating moulding, the crosssection of the cavity being square or rectangular. In Fig. 2 the mould 1 is of square cross-section and has a moulding 2 placed in the upper end of the cavity. In Fig. 3 a rectangular cross-section slab-forming mould 1 is shown with a moulding 2 on each of its longer sides 3. The mould lining materials are specified (see Division C3).
Patent GB-1435167-A (GB)
Title: Nuclear reactors
IPC: G21C7/16
Filed: 1973-07-31
Abstract: 1435167 Valves COMBUSTION ENG Inc 31 July 1973 [31 July 1972] 36391/73 Heading F2V [Also in Divisions G4-G6] A valve assembly 24 for use in a nuclear reactor control rod drive apparatus (see Divisions G4-G6), comprises a poppet valve member 40 urged by a spring 42 to a closing position with a seat. The valve member 40 is retracted from the seat when a solenoid 46 is energized. The control rod 21 is raised, when the valve is open, by differential pressure across a piston 34 which mounts a buffer 38 which comprises a slug of magnetic material. The latter can be such as to distort the field of the solenoid 46 in a sense. to reduce its attraction for valve member 40, thus allowing the valve to close when the rod 21 is fully raised, as shown, and the buffer 38 influences the solenoid field.
Patent GB-1438414-A (GB)
Title: Positioning apparatus
IPC: G05B19/39
Filed: 1974-08-20
Abstract: 1438414 Automatic control of position INTERNATIONAL BUSINESS MACHINES CORP 20 Aug 1974 [10 Sept 1973] 36497/74 Heading G3N Two elements, e.g. a tool and a workpiece, are brought into precise relative positions by driving one element into a predetermined region using a servo loop, and then driving the second element to a desired position relative to the first element. As shown a workpiece W is mounted on a stage 11 driven by servomotors 12, 13 in response to a desired position address supplied by a control unit 100. The motors receive position feedback through lines 20A, 103A and speed feedback through lines 12A, 13A, When the stage 11 and workpiece W reach a position within a pre-set tolerance of the desired position, motors 12, 13 are stopped by a latching arrangement, and the remaining difference signal between the actual and desired positions of the workpiece W is fed to circuits 75, 104 which control stepping motors 4, 5 so as to move a table 10 to a precisely required position in relation to the workpiece W. The table 10 carries a tool 18A which may be a drill. Alternatively, the system may be used to position an electron beam accurately in relation to a semi-conductor wafer, the final control involving adjustment of the field produced by electrostatic deflection plates. The input to control unit 100 may be from paper or magnetic tape or punched cards, or from a manually operated arrangement such as a keyboard, thumbwheels or switches. A further circuit, known as a ring out circuit, operates to ensure that all motion of the stage 11 has ceased before control is transferred to the table 10. This is done by a logic circuit responsive to the last bit of the signal from a position encoder which checks that the value of the bit does not change during a pre-set time interval.
Patent GB-1440364-A (GB)
Title: Spectacles frame
IPC: G02C5/22
Filed: 1973-08-01
Abstract: 1440364 Spectacle frames R L MAILLET 1 Aug 1973 [2 Aug 1972] 36514/73 Heading G2J The frame, in which the side pieces 2 can be sprung further apart than their normally open position and are resiliently returned against the face 1 when closed, comprises hinge knuckles 4, 5 one of which (4) in (Fig. 3) has two facets 8, 9 parallel to the hinge pin. A resilient strip 15 is fixed to the part of the frame carrying the other knuckle so that its free end 15a bears against facet 8 or 9 depending on the relative angular position of the face and side piece. The opening movement of the sider piece is limited by strip 15 being pushed by the one hinge knucke into engagement with the other.
Patent GB-1125444-A (GB)
Title: Method and apparatus for the preparation of thin layers
IPC: H01J37/34
Filed: 1965-08-25
Abstract: 1,125,444. Coating in the presence of a glow discharge. F. GRASENICK. Aug. 25, 1965 [Aug. 25, 1964], No.36586/65. Heading C7F. In a process for forming a coating in the presence of a (gas) discharge by vacuum deposition, sputtering or by chemical decomposition of a gas, the walls surrounding the substrate are cooled to a temperature in the region of or below that of liquid nitrogen. The temperature of the walls may also be controlled by blowing hot air into the chamber or by heating coils and the support for the substrate may be heated or cooled. The glow discharge may also be used to clean the substrate before coating. Electric or electromagnetic fields may be used to control the formation of the coating. The central part of the chamber may be enclosed by negatively charged grid electrodes. Carbon is deposited from hydrocarbons and silicon or silica from silicon - hydrogen compounds. The support for the substrates may be two semi-cylindrical shells pressed together by springs Fig. 3 (not shown).
Patent GB-1391086-A (GB)
Title: Fluid amplifier
IPC: F15C1/08
Filed: 1972-08-04
Abstract: 1391086 Fluidic elements MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 4 Aug 1972 [5 Aug 1971 (2)] 36622/72 Heading G4P A fluid element has a control duct for a signal which switches a power jet from one outlet port to another. The wall opposite each control duct is formed with two cavities. The division between the ports is shaped to guide part of the jet back on itself via one of the cavities to render the power output less sensitive to variations in loading on the outlet ports. A monostable element, Fig. 1, comprises two cavities 16, 17 opposite control duct 7. Fluid from nozzle 5 normally exits via port 8, a low pressure bubble being formed in cavity 12. When loading is present on port 8 leakage flow occurs. The angled face 14 of the divider 13 deflects some of this leakage flow into cavity 17 where it is directed back on to the jet. Some also passes into cavity 16 to destroy any vortex that may be formed there. When control fluid is present at duct 7 the fluid from nozzle 5 exits via port 9, vortex bubbles being formed in cavities 16, 17. Loading on 9 causes leakage flow which is guided by face 14 back on to itself via cavity 12. A bi-stable element, Fig. 2, has cavities 44, 46 opposite one control duct 37, and cavities 43, 45 opposite the other 40. The flow paths are generally similar to those of the monostable element when in its unstable state.
Patent GB-1080323-A (GB)
Title: Styrene polymer films and treatment thereof
IPC: C08K5/103
Filed: 1964-09-08
Abstract: A film comprises a styrene polymer containing a major proportion of styrene and either (A) 0.4-3.5% of a mono- and/or di-glyceride of a fatty acid which is present as such or as a glyceride in natural fats, or (B) a surface layer of the above monoglyceride, the surface of the film being subjected to the action of an alternating high frequency voltage stress accompanied by corona discharge.  For (B) above, the monoglyceride may be initially dispersed throughout the styrene polymer and thereafter exudes to the surface to form a layer, or alternatively, the styrene polymer may be coated with the monoglyceride. The polymer may be polystyrene. The glycerides may be a mixture of glyceryl monostearate and monopalmitate.  The film may be thermally formed into a container or tubing.ALSO:A film of styrene polymer containing a major proportion of styrene, is coated with a monoglycenole of a fatty acid which is present as such or as a glycenole in natural fats, the surface of the polymer film having been subjected to the action of an alternating high frequency voltage stress accompanied by corona discharge.
Patent GB-882675-A (GB)
Title: Process for the production of polymers, particularly of polyethylene
Inventor: FLYNN JOHN MATHEW
IPC: C08F6/26
Filed: 1959-10-29
Abstract: Polymers, particularly of ethylene, produced by the polymerization of ethylenically unsaturated hydrocarbons in the presence of a Ziegler catalyst system, are treated with an active hydrogen compound and then the finely-divided polymer is fluidized by passing a stream of hot air and/or steam at a fluidizing rate upwards through the polymer mass.  Specified active hydrogen compounds are water and aliphatic alcohols, e.g. isopropanol.  The polymer is preferably fluidized with hot air at a rate of o,15 to 0,3 linear feet per second at 100-110 DEG C. for 10 to 15 minutes or with steam at 0,20 to 0,25 linear feet per second at 100-110 DEG C. for 5 to 10 minutes and is preferably still wet with the vehicle used in its polymerization.  French Specifications 1,158,804 and 1,159,713 are referred to.
Patent GB-1108617-A (GB)
Title: Improvements in or relating to electric typewriters
Inventor: OLIVER GEORGE FRANCIS NORRIS
IPC: B41J23/08
Filed: 1965-08-26
Abstract: 1,108,617. Typewriters. OLIVER PELL CONTROL Ltd. 12 Oct., 1966 [26 Aug., 1965], No. 36792/65. Heading B6F. Framework; actions. -A power - operated typewriter has an elongated opening E in its underside, a plurality of manually operable key levers 13 to one side of the opening, a plurality of type-lever operating links 8 on the other side and an equal plurality of connecting links 18 extending above the opening to connect the key-levers 13 to their operating links 8 which are displaceable by an intercommunication unit 23 insertable through the opening. The links 8 terminate in a projection 6b which holds a cam 6 free of a power-roller 5. The low point of the cam is held away from the power-roller by a disc 7 and the cam 6 and the disc 7 are frictionally coupled together. See Specification 1,108,616. Coupling to other machines; remote control.- The typewriter may be used in conjunction with other equipment. The elongated opening E receives an upwardly projecting section 24 of an intercommunicating unit 23 so that the typewriter can operate a remote typewriter or a punch unit, or the typewriter can accept signals from an incoming source or from a record card or a tape. When the unit is connected, which is effected by placing the typewriter upon it, the section 23 raises the connecting links 18 to disconnect the keys 13 from the type-levers. The section 24 however connects the typewriter so that when a key is operated a member 25 in one chamber 28 is coupled to a sensing device, e.g. electric contacts, light cells, air valves for transmitting signals to a remote source. A second chamber 29 contains apparatus such as electromagnets, air cylinders to operate the typewriter actuator levers 8 from input signals.