baber/WOPTO huggingface dataset:
Patent GB-1525029-A (GB)
Title: Blowing heads attachable to screw extrusion presses and for continuously extruding thin plastics tubes
IPC: B29C48/90
Filed: 1975-12-12
Abstract: 1525029 Internally cooling and inflating extruded tubing REIFENHAUSER KG 12 Dec 1975 [18 Dec 1974] 51134/75 Heading B5A A plastics tube 2, extruding from an annular die outlet 3, is continuously inflated and internally cooled by air circulated from an annular array of inlet nozzles 8 to an outlet tube 5, via a plurality of axially spaced discs 13 around which the air flow is controlled by adjustable size apertures 12, providing communication with an annular space between the tube 5 and the discs 13. Apertures 11, which are also preferably of adjustable size, may be provided through each disc. In the Fig. 2 embodiment, the adjustability of the apertures 12 is provided by the relative alignment of apertures through a tube 15 and through sleeves 16 mounted for adjustable rotation upon the tube 15. The discs 13 are fixed to the tube 15, and the adjustability of the apertures 11 is provided by the relative alignment of apertures through each disc and through a ring 14 which is disposed upon or in each disc, e.g. carried by the sleeves 16, for adjustable rotation relative to the discs. The cooling means is adjustable axially of the extrusion die. In Fig. 5 embodiment, the discs 10 are mounted to sleeves 16 which are similarly adjustably rotatable to vary the apertures 12, and annular baffles 18 extend internally into the annular space 6 and are of a radial width which increases with their distance from the die.
Patent GB-1105589-A (GB)
Title: Process for the production of cyclic olefines
Inventor: WILSON ROBERT ARTHUR LAWRENCE
IPC: B01J31/26
Filed: 1965-12-02
Abstract: Methyl hydrogen polysiloxane is reacted with AlCl3 in cyclohexane solvent under an argon atmosphere and the product further reacted with TiCl4.  The final product is used as a dimerization catalyst (see Division C5).ALSO:4-Vinyl cyclohexene and derivatives thereof are prepared by contacting an acyclic conjugated diene of formula C4X6, where each X is hydrogen or alkyl and the X's may be the same or different, in an anhydrous non-aromatic solvent with a catalyst comprising the reaction product of (i) a compound of B, Al, Ga, In or Tl, (ii) a silicon compound containing an Si-H bond, and (iii) a compound of a metal of Group IVa, Va or VIa of the Mendel<\>aeef Periodic Table.  Catalyst component (i) is suitably a halide, an alkoxide, or a halogen alkoxide, AlCl3 being preferred; component (ii) is suitable a silane or siloxane, e.g. trimethyl silane, triethyl silane, dimethyl phenyl silane, methyl diphenyl silane, and a methyl hydrogen polysiloxane; and component (iii) is suitable a halide, oxyhalide, alcoholate or acetylacetonate, preferably TiCl4. All three catalyst components may be reacted together simultaneously, but preferably (i) and (ii) are first reacted together and the product reacted with (iii).  The diene starting material may be butadiene, isoprene or piperylene, and suitable non-aromatic solvents are cycloalkanes, e.g. cyclohexane, and acyclic alkanes, e.g. a commercial mixture of C16- 18 alkanes.  In the example, butadiene is converted to 4-vinyl cyclohexene.ALSO:Catalysts for cyclodimerisation of conjugated dienes (see Division C5) comprise the reaction product of (i) a compound of B, Al, Ga, In or Tl, e.g. a halide, alkoxide or halogen alkoxide (only AlCl3 specified), (ii) a silicon compound containing an Si-H bond, e.g. trimethyl silane, triethyl silane, dimethyl phenyl silane, methyl diphenyl silane, and a methyl hydrogen polysiloxane, and (iii) a compound of a metal of Group IVa, Va or VIa of the Mendeleef Periodic Table, e.g. a halide, oxyhalide, alcoholate or acetylacetone (only TiCl4 mentogether simultaneously but preferably (i) and tioned).  All three components may be reacted (ii) are first reacted together and the product reacted with (iii).  The reaction is carried out in an inert solvent under an inert gas atmosphere at 40-100 DEG C.
Patent GB-1529580-A (GB)
Title: Mining equipment
IPC: F16G13/16
Filed: 1976-12-10
Abstract: 1529580 Chains COAL INDUSTRY (PATENTS) Ltd 10 Dec 1976 [17 Dec 1975] 51585/75 Heading F2Q A chain for carrying and protecting energy supply cables and/or hoses for a longwall face mining machine comprises a number of channelshaped links each of which comprises an open ended box-like member 3, defining a channel 2, and having pivoted mountings 4, 6 for pivotal connection by pins (not shown) to adjacent links, an opening or mouth 8 being provided in each link between 3 for the passage of one or more energy supply cables and/or hoses (not shown) into or out of the channel 2, the mouth 8 on all, or some, of the links being closed by a closure member 14. The closure member 14 has deformable lugs 10 which are inserted into openings in the member 3 and then bent over to retain the closure member 14 on the link member 3 to fully close the mouth 8 and hence retain and protect the cables and/or hoses within the channel 2, removal of the closure members 14 being simply effected by bending, i.e. straightening the deformable lugs 10. The links 3 may be of plastics, metal or a combination of plastics and metal. Each link may have two pairs of pivotal connections with the adjacent links and may have formations instead of openings for engagement by the deformable closure member. The links may define two parallel troughs or channels.
Patent GB-517171-A (GB)
Abstract: 517,171. Vulcanizing presses. KEWLEY, J. July 20, 1938, No. 21528. [Class 70] [Also in Group XI] Vulcanizing apparatus for repairing hose pipes, which enables two lengths of hose to-be dealt with, comprises a base plate to receive flattened hose, two pressure devices, each comprising a pressure plate and two screws, arranged to right and left of central supports, and a single electric heater with switch and flexible connections enabling it to be placed on each of the pressure plates in turn. As shown, a base plate a has two central pillars b provided with brackets c for pressing-screws d, bearing on pressure-plates i. A heater g is connected by a flex f<2> to a cross-bar at the top of the pillars and is controlled,by a switch f.
Patent GB-1363635-A (GB)
Title: Tool holders
IPC: E21C35/18
Filed: 1971-10-27
Abstract: 1363635 Mineral-mining picks PADLEY & VENABLES Ltd 27 Oct 1971 [3 Nov 1970] 52135/70 Heading E1F [Also in Division B3] A tool holder comprises a head 2 which is rebated at 3, 4 to form a seat 3a having an upstanding pin 11 for entering a bore 13 in a tool, e.g. a mineral-mining bit 12 or a lathe tool, when the tool is positioned on the seat. The tool is clamped against the pin when two wedging jaws 16, 17 are caused to move towards each other whilst in contact with the rear face 4 of the rebate and a side face or faces 14, 15 of the tool.
Patent GB-1479917-A (GB)
Title: Data processing systems
IPC: G06F11/00
Filed: 1974-12-04
Abstract: 1479917 Eliminating noise HONEYWELL INFORMATION SYSTEMS Inc 4 Dec 1974 [13 Dec 1973] 52360/74 Heading G4C Short duration noise records are eliminated during the transfer of data between a source 40 (Fig. 1) and a data processing system via a buffer store 25 incremented by an address counter 27 as each character is received, by resetting the address counter to its initial state when less than a predetermined number of frames are received from the source. As described the data record which has a minimum duration of 3 frames may be one by one format (6 data bits, 2 punctuation bits, 1 parity bit), two by one format (2 bits of the first character, 6 bits of the second character, 1 parity bit), or four by three format (6 bits of four consecutive characters and one parity bit). When it is to be read from tape device 40 a read command on bus 14 including information specifying the type of command, the particular tape device involved, whether read is in the forward or reverse direction and the format in which the data is recorded is fed to control section 30. The control section then supplies signals to move the selected tape device in the selected direction, fires circuits to set a delay, at the end of the delay, sense amplifier circuits 22 supplying signals to the control section and via deskew buffer circuit 23 and depacking section 24 to solid state buffer store 25. When the first bit is sensed (on one of lines RSNL110-RSNL910 (Fig. 2A, not shown)), frame counter (30.20) is incremented and a record detector (30.35) is turned on. When the frame counter reaches a count of 3 when data is in the one by one or two by one format or a count of 6 when data is in the four by three format, a flip-flop (36.10, Fig. 2C, not shown) in the noise detector 36 is switched to set a data allow flip-flop (36.30). Data may then be unloaded from the buffer store 25, a flip-flop (30.78, Fig. 2B, not shown) being set to a binary 1 to cause the peripheral controller to request the CPU cycle for the transfer of data whenever the difference between counter 27 and a read-out counter 28 is 8 (i.e. 8 characters are stored). When less than 8 characters are stored the flipflop is reset to prevent further requests. When an interval of 88 frames without data occurs the record detector (30.35) resets, an end-of-record flip-flop (30.50) then being set to cause a request for CPU cycles so that the remaining characters stored in the buffer are transferred until it is empty. A noise record which lasts only two frames results in the frame counter (30.20) only being incremented to a count of 2, the absence of further signals causing record detector (30.35) to reset. This in turn results in the state of the flip-flop (36.10) in the noise detector being sampled and since it has not been set the control section 30 generates clear signals to clear the store 25 by resetting the counters 27, 28 to zero.
Patent GB-1528498-A (GB)
Title: Axially retained homokinetic coupling
IPC: F16D3/207
Filed: 1975-12-24
Abstract: 1528498 Universal joints GLAENZERSPICER 24 Dec 1975 [17 Jan 1975] 52838/75 Heading F2U In a constant velocity ratio universal joint, three part-spherical rollers 12 carried on three trunnion arms 10 are engaged in three pairs of parallel track surfaces 4 in a bell-shaped member 3, and the trunnion arms are secured both to an outer member 9 and also to a sleeve member 11 carrying two members 13, 14, presenting thrust surfaces which engage two corresponding thrust surfaces 5, 8, secured to the member 3, while the pairs of track surfaces 4 are oriented at a small angle relatively to the rotational axis of member 3, thereby in use deriving from the transmitted torque a component of axial force, proportional to torque, which is exerted on the thrust surfaces. Packing rings 15, which may be composed of resilient material or of steel, may be interposed between the mushroom heads of the members 13, 14 and the sleeve 11 in order to minimize play between the thrust surfaces. An elastic cover 16 may be fitted. The angle of relative orientation of the track surfaces 4 may lie between 1 and 3 degrees and preferably is less than 2 degrees.
Patent GB-1471640-A (GB)
Title: Process for recovering lead from the active material of used batteries
IPC: C22B13/02
Filed: 1975-12-30
Abstract: 1471640 Recovering lead A M LINIGER 30 Dec 1975 [8 Jan 1975] 53203/75 Heading C7D Lead is recovered from lead sludge obtained from the active material in lead batteries by drying the sludge e.g. at 100-150‹C to remove all the water therefrom, grinding the dried sludge to the particle: size of the original active material, intimately mixing the ground dried sludge with anhydrous carbon powder, e.g. cake, and known additives e.g. mill scale, quartz sand, lime sand or fluorite, heating in a closed furnace e.g. an electric furnace, to reduce the ground dried sludge to  metallic lead and cooling, filtering and removing SO 2  from the gaseous reaction products. The gaseous products may be filtered using cloth filters and the SO 2  removed by compressing and cooling the gaseous products to liquify the SO 2 .
Patent GB-1315978-A (GB)
Title: Data input systems for digital computers
IPC: G06K1/12
Filed: 1970-11-09
Abstract: 1315978 Digital computers; keyboard entry INFOREX Inc 9 Nov 1970 [12 Nov 1969] 53278/70 Headings G4A and G4C An input system for a digital computer comprises a plurality of independent keystations 18-20, each having a data keyboard for entering keystroke data, i.e. a data word indicating which key has been operated, and a control data processor 10 which controls transfer of the keystroke data to the computer. Up to eight stations 18, 19, 20 are connected in series to the control processor 10 which polls the stations, assembles and edits the data from the stations, and transfers the data to a digital computer via line 17 or magnetic tape unit 16. The control processor has a read only memory 11 holding program subroutines, a read/write magnetic core memory 12 having a first section for keystroke assembly under control of format control data held in a second section, a magnetic disc unit 13 for record pooling and less frequently used routines and also having two fixed tracks 15 holding format control data for the separate keystations which is swapped back and forth between the disc unit and memory 12. It is stated that by this continuous swapping, each station is effectively provided with its own independent format control data while sharing the subroutines in memory 11. An instruction counter can control whether the next instruction to be executed is fetched from the memory 11 or the memory 12. Each station comprises a keyboard and a cathode ray tube (CRT) which shows characters entered and has a moving cursor for visually indicating the operating position thereof. Operation.-Section 22 of processor 10 polls each station 60 times a second, the keystrokes are transferred to an associated individual section of memory 12 and the CRT simultaneously encabled, then the data from the assembly area is sequentially read on to the data channel in synchronism with the polling for display on the CRT. Variable length and branch instructions and arithmetical addition by table lock-up are also mentioned. If an entry error occurs, the appropriate assembly area in memory 12 is cleared and an error message displayed at the appropriate station. The disclosure is the same as that of the divided out Specification 1,315,979.
Patent GB-1564043-A (GB)
Title: Manufacture of n-(3,4-dimethylphenyl)-d-ribamine
IPC: B01J23/00
Filed: 1976-12-22
Abstract: N-[3,4-Dimethylphenyl]-D-ribamine of the formula I is prepared by catalytic hydrogenation of a mixture of 3,4-dimethylaniline and/or 3,4-dimethylnitrobenzene and a D-ribonic acid derivative or of D-ribonic acid 3,4-dimethylanilide. The hydrogenation takes place in an inert solvent at temperatures of above 100 and up to 155 DEG C. The compound obtained is an intermediate for the preparation of vitamin B2. <IMAGE>
Patent GB-1195126-A (GB)
Title: Improvements in or relating to Fluid Pressure Operated Braking Systems.
Inventor: ADAMS WILLIAM JOHN PEARCE
IPC: B60T8/26
Filed: 1967-11-24
Abstract: 1,195,126. Fluid-pressure brakes. GIRLING Ltd. 5 Nov., 1968 [24 Nov., 1967], No. 53591/67. Heading F2F. In a vehicle fluid pressure braking system, two separate fluid pressure actuators 2B for operating each of the front wheel brakes 1 of the vehicle from two separate fluid pressure sources, e.g. air reservoirs 4, are arranged to be operated via a driver's brake valve 3 for simultaneous actuation, and first and second rear wheel brake cylinders 9A, 9B are connected respectively to the pressure sources by first (10A) and second (10B) pressure lines such that a cutoff valve 7 is interposed in the second pressure line 10B and is responsive to the pressurization of the first pressure line 10A to prevent delivery of pressure fluid to the second rear brake actuator 9B. A pressure reducing and limiting valve 6 is fitted in the first pressure line 10A and the second rear brake actuator 9B has a smaller output than the first rear brake actuator 9A. Although the front and the rear wheel actuators are air actuated, the front wheel brakes 1 of the vehicle are actuated hydraulically through hydraulic master-cylinders 2A operated by the compressed air actuators 2B. In an alternative embodiment (not shown) similar arrangements could be provided in a purely hydraulic brake system or the rear brakes may be actuated by a single pair of brake actuators 9A, 9B connected to both rear brakes by suitable linkage.
Patent GB-1315258-A (GB)
Title: Process for manufacturing ammonium polyphosphate and apparatus  for carrying out this process
IPC: C01B25/28
Filed: 1971-11-18
Abstract: 1315258 Ammonium polyphosphates COMPAGNIE FRANCAISE DE L'AZOTE 18 Nov 1971 [18 Nov 1970] 53667/71 Heading C1A Ammonium polyphosphate is prepared by in a first stage reacting ammonia with phosphoric acid to produce a melt having a molar ratio of N 2 /P 2 O 5  of 0À5-0À72, and then in a second stage concentrating the melt to a P 2 O 5  + NH 3  content of 65-75% by wt., and then in a third stage reacting the concentrate with additional ammonia without the introduction of external heat to give a P 2 O 5 +NH 3  content of not more than 77% by wt. In the first stage, wet process phosphoric acid having a P 2 O 5  content of 28-54% by wt. is pumped from reservoir 1 through a heat exchanger 4 to raise the temp. of the acid to near its b.p. and the hot acid is passed in counterflow with NH 3  in column 7 heated to a temp. of 180‹ C. In the second stage the ammoniated phosphoric acid, passed via pipe 16, is concentrated in the heat exchanger 17. In the third stage the concentrated solution, passed via pipe 18, is reacted with further NH 3  in the agitator vessel 19. The ammonium polyphosphate produced may be passed via pipe 24 to be further ammoniated in heat exchanger 25 in a fourth stage. The gaseous effluents, e.g. NH 3 , from the second, third and fourth stages may be recirculated via pipes 20, 23 and 27 to the bottom of column 7.
Patent GB-1452030-A (GB)
Title: High strength ductile epoxy plastics and their production
IPC: C08G59/42
Filed: 1974-12-12
Abstract: 1452030 Epoxy resin composition CANADIAN PATENTS & DEVELOPMENT Ltd 12 Dec 1974 [18 Dec 1973] 53846/74 Heading C3B [Also in Divisions D1 and H2] A composition comprises an epoxy resin and a curing agent (A) comprising a mixture of methylendomethylenetetrahydrophthalic acid (I) and its anhydride (II). The anhydride group/  COOH number ratio in (A) is #¢. The ratio may be #6. There may be 50-150 phr of (A), (A) may also include up to 70 phr of additional anhydride, being phthalic, tetra- or hexahydrophthalic, succinic, dodecenylsuccinic, or dimethylendomethylenetetrahydrophthalic anhydride. The epoxy resin may be a bisphenol A diclycidyl ether, an epoxidized novolac, or a cycloaliphatic epoxy resin. Tertiary amine catalysts may be used. All the ingredients can be mixed simultaneously; (I) and (II) mixing with the resin at room temperature, while phthalic anhydride dissolves as the mixture is heated slowly to 100‹ C; or the phthalic anhydride may be added to a mixture of the resin and (I) and (II) at #80‹ C. The resin may have been preactived with diethylamine hydrochloride. The resin may be cured in two stages, at 90-120‹ C. and then 150-175‹ C. The composition may be used as a matrix in composites; for vacuum-filling of glass fabric followed by heat-curing under pressure; or for impregnation of filaments, yarns, roving, or fabric. It may be filled with precipitated SiO 2 , whiskers, mica platelets, or SiC. It may be cast, e.g. into electrical insulators. Or electrical components may be insulated by wrapping in glass cloth, impregnating with the composition, and curing.
Patent GB-1101520-A (GB)
Title: Improvements in or relating to feeding arrangements for multi-layer presses
IPC: B30B7/02
Filed: 1965-12-21
Abstract: 1,101,520. Press feeding device. MOTALA VERKSTAD A.B. 21 Dec., 1965 [21 Dec., 1964], No. 54113/65. Heading B5A. [Also in Division D2] Wet fibre sheets A are fed to a multi-layer press 1-4 by a reciprocable carriage 10 having hollow sheet carrying platforms 12, the transfer of the sheets from the platforms to the platens being aided by a fluid cushion produced by a pressure fluid, e.g. air, which issues through holes in the upper surfaces of the platforms. Each platform 12 is bent downwards at its forward end and is supported at its rear end by hollow columns 11 reciprocable by means of wheels 13 and piston 15 over the table 6 of a vertically reciprocable multi-layer hoist 5. The forward end of each platform is slidably supported upon sleeves 8, mounted by columns 7 upon table 6, by means of rollers 14 (not shown). In operation the hoist, along with the carriage 10, is raised and as the platforms 12 pass fixed roller conveyer 16 they are loaded with a sheet A. The carriage is then forwarded to insert the platforms between the press platens, the bent forward end of each platform serving to push the sheets pressed in the previous cycle off the platens into the shelves 19 of a take-off carriage 17, whence they are removed by lowering the carriage over a take-off conveyer 20. At the end of the forward stroke of the carriage fingers 28, carried by rotatable horizontal bars 29 actuated by cranks 30 and a vertically reciprocable piston operated rod 31, are rotated to a vertical position (as shown). Withdrawal of the sheet along with the platforms is thus prevented and as the carriage is withdrawn the sheets are transferred to the press platens, this transfer being considerably aided by the fluid cushion over each platform.
Patent GB-1248983-A (GB)
Title: Distribution system having at least two contact systems connected in series
IPC: H01H71/10
Filed: 1968-11-18
Abstract: 1,248,983. Protective arrangements. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 18 Nov., 1968 [18 Nov., 1967], No. 54566/68. Heading H2K. In a distribution system having main and branch circuit-breakers, the circuit-breakers are of the current-limiting type and are arranged so that their contact opening times and the manner in which their arc voltages vary are substantially identical. The main circuit-breaker may have a reclosing device.
Patent GB-1356261-A (GB)
Title: Vehicle suspension units
IPC: B60G15/07
Filed: 1970-11-17
Abstract: 1356261 Strut-type suspensions GIRLING Ltd 27 Oct 1971 [17 Nov 1970] 54610/70 Heading B7D  In a strut type suspension, e.g. of the McPherson type, the strut 11 is releasably secured in a socket in the stub axle by an annular retaining member 22 surrounding the strut 11 and abutting against a shoulder provided by an increased diameter lower end portion 21 of the strut 11. As described the strut 11 includes an inner tube 14 and an outer tube 13 having an increased diameter lower end 21, the strut being retained in the socket in the stub axle 10 by a nut 22 screw threaded into the socket. In a modification (not shown) the increased diameter lower end portion of the strut may be formed as a separate collar or cup attached to the strut, and the strut 11 may be of single tube construction.