baber/WOPTO huggingface dataset:
Patent GB-1476792-A (GB)
Title: Gas turbine power plant
IPC: F02C7/36
Filed: 1974-10-12
Abstract: 1476792 Gas turbine plant UNITED TURBINE AB & CO KB 12 Oct 1974 44290/74 . Heading F1G A gas turbine plant comprises a separate compressor and turbine rotors 10, 11 respectively, the shafts of which are inter-connected via an infinitely variable transmission 22, e.g. of belt type, and planetary reduction gearing 18. Output power is transmitted via bevel reduction gear 32 and reversing gear-box 19, e.g. to the wheels of a car. The plant includes a combustion chamber 12 and regenerator 13 which may be of rotary type. As shown the rotor axes are disposed vertically but they may be disposed in V-formation, Fig. 6 (not shown) or axially, Figs. 1 to 4 (not shown). A second turbine (11a) having adjustable guide vanes may be geared to turbine 11. A freewheel (25) or a slip coupling may be provided in series with variable transmission 22.
Patent GB-1510990-A (GB)
Title: Electric are furnaces and their operation
IPC: H05B7/00
Filed: 1975-10-06
Abstract: 1510990 Automatic control REPUBLIC STEEL CORP 6 Oct 1975 44343/77 Divided out of 1510988 Heading G3N The disclosure is identical with Parent Specification but the claims are directed to automatically stopping movement of the arc electrode system away from the furnace charge should the movement be obstructed.
Patent GB-947948-A (GB)
Title: Improvements in and relating to planetary drive transmission devices
Inventor: LAMBURN ALAN SALISBURY
IPC: F16H61/02
Filed: 1961-12-12
Abstract: 947,948. Change-speed gearing. AUTO TRANSMISSIONS Ltd. Dec. 10, 1962 [Dec. 12, 1961], No. 44364/61. Heading F2D. A three-element epicyclic overdrive gear unit controlled by a clutch-brake member 24 operated by a fluid-pressure piston 31 has an auxiliary fluid-pressure piston 43 and an associated leakage orifice 42 for cushioning gear changing. The unit consists of a sun pinion 21 splined to member 24, planet pinion 18, carrier 17 and annulus 20, and as shown in the condition for direct drive member 24 is engaged with annulus 20 while piston 31 is cut off from a supply pump 37 by a control valve 36. For overdrive valve 36 is set to connect piston 31 with pump 37, the piston moving to the left to smoothly disengage member 24 from annulus 20 against loading springs 28, and then bearing against the fixed casing 34 to hold sun pinion 21. For direct drive valve 36 is turned to the position shown in which a pipe 40 connects the cylinders 38, 41 of pistons 31, 43. Under the action of springs 35, 38 piston 31 moves to the right and expels liquid from cylinder 38 to cylinder 41, from which it escapes through orifice 42, the piston 43 thus opposing springs 28 to give smooth engagement of member 24 with annulus 20.
Patent GB-1093538-A (GB)
Title: Improvements in or relating to switched frequency oscillators
IPC: H03B1/00
Filed: 1964-10-30
Abstract: 1,093,538. Frequency shift oscillator. TELEFUNKEN PATENTVERWERTUNGS. G.m.b.H. Oct. 30, 1964 [Oct. 31, 1963], No. 44407/64. Heading H3R. A frequency shift oscillator comprises an oscillator 1 with frequency determining circuit 2 across which a capacitor 3 can be connected via by-pass capacitor 6 and the emitter-collector path of a transistor 4 which is switched into conduction by a keying voltage applied between terminals 11 and 12. Transistor 4 is connected as a reactance stage, capacitor 5 and resistor 9 developing a base voltage and hence an emitter-collector current which is 90 degrees out of phase with the voltage across the frequency determining circuit 2. This current, flowing through capacitor 3 develops a voltage in phase with the voltage across circuit 2 and the transistor circuit is dimensioned such that these voltages become equal, i.e. capacitor 3 is effectively connected across the circuit 2, when the D.C. voltage drop between emitter and collector is substantially zero. The accuracy of the two frequencies is not affected by transistor ageing or by variation in keying voltage above the value necessary to produce the above condition and the oscillator frequency varies linearly with keying voltage between the two values. In a second arrangement, Fig. 3 (not shown), a further similar transistor circuit is connected across the frequency determining circuit of the oscillator whereby the oscillator can be switched to operate at any one of four set frequencies.
Patent GB-1347449-A (GB)
Title: Epoxy resins
IPC: C08G59/42
Filed: 1972-09-28
Abstract: 1347449 Curing epoxy resins HONEYWELL Inc 28 Sept 1972 [1 Oct 1971] 44721/72 Heading C3B An accelerator for curing epoxy resins, especially with polycarboxylic anhydrides, comprises a uranyl salt or a uranyl chelate incorporated in a polyol. From 50-80% of the uranyl compound may be dissolved in the polyol, e.g. dipropylene glycol, the remainder being dispersed therein. Uranyl nitrate and uranyl acetylacetonate are exemplified. The curing agent may be a eutectic mixture of chlorendic anhydride, maleic anhydride and methyltetrahydrophthalic anhydride. From 0À05-1À5% by wt. of accelerator may be used based on the wt. of the resin. Curing may take place at 71-77‹ C. Uses.-Encapsulation of electronic components.
Patent GB-1483922-A (GB)
Title: Seal guard
IPC: F04D29/70
Filed: 1974-10-15
Abstract: 1483922 Centrifugal fans A W SPRASON 15 Oct 1974 [16 Oct 1973] 44737/74 Heading F1C [Also in Divisions F2 and F4]  A device for extracting particulate matter from the vicinity of a seal, gland or bearing 2 mounted on a rotatable shaft comprises an inner portion 6 having an axial bore 5 to receive the shaft 1 and an outer portion 7, the two portions defining an annular Venturi passage therebetween. The two portions are conjoined by angularly spaced fan blades 9 located within the passage and at least one aperture 11 is provided extending through the inner portion from the end of the bore 5 to the region of minimum section of the Venturi passage so that on rotation of the shaft, air flows through the passage and causes an air-flow through the aperture to extract particulate matter from the vicinity of a seal, gland or bearing adjacent the device. The device is made of plastics in two halves secured together about the shaft by lugs or dovetails or screws, magnets or dowels. Suction cavities 17 in the device assist in axial positioning. The fan blades 9 can be inserted or made integral with the portions and are effective in both directions or rotation. An additional fan can be mounted as a snap fit on a seat 14 to assist in cooling.
Patent GB-1330355-A (GB)
Title: Automatically operating on a workpiece with a cutting or forming  tool
IPC: B23Q35/06
Filed: 1970-09-22
Abstract: 1330355 Machine tool controls SIEMENS AG 22 Sept 1970 [23 Sept 1969] 45176/70 Addition to 1216000 as improved upon or modified by 1242760 Heading B3B [Also in Division G3] In a lathe the tool traverse and/or depth of cut is reduced for so long as the spindle torque which is dependent on the cutting performance exceeds an upper threshold, and in-feed up to a maximum of the programmed profile is carried out as long as the torque exceeds a lower threshold, and the input of the programme into the control is repeated until the actual contour of the workpiece corresponds with the programmed contour; the feed rate in one direction of workpiece or tool motion being dependent upon the cutting performance which is calculated from the spindle speed and torque, and at least one feed perpendicular to the above feed rate is dependent upon the first mentioned feed rate and/or upon the differential co-efficient of the calculated cutting performance. In an example, the tool moves up to the workpiece with a fast traverse V s  in the Z direction, Fig. 1, and at time t, the tool contacts the work. A switch from fast traverse to cutting feed rate V zp  takes place at time tz, when the minimum threshold P min  in the cutting performance P z  is exceeded. The tool penetrates further into the work until at time t 3  the normal cutting performance z max is exceeded. The traverse rate V z  is slowed down and if this undershoots V min  as at time t 4 , the in-feed V x  in the X direction is initiated so as to reduce the depth of cut and P x   max  is not exceeded. The maximum traverse is limited by the programmed feed rate V zp . A block diagram, Fig. 3, shows a circuit for implementing the machining sequence of Fig. 1. The cutting rate is adapted to remain constant by regulating the spindle speed. A block circuit diagram, Fig. 4 (not shown), illustrates this arrangement. The in-feed may be controlled as a function of a signal which is proportional to the differential co-efficient of the cutting performance. A block diagram, Fig. 5 (not shown), illustrates this arrangement. Switching from fast traverse to cutting traverse takes place immediately, whilst switching from cutting traverse to fast retraction takes place with a delay so as to cater for irregularities in the stock.
Patent GB-1246328-A (GB)
Title: Polymers and process for their production
Inventor: MERIJAN ASHOT
IPC: C08F26/06
Filed: 1968-09-24
Abstract: 1,246,328. Polymers containing heterocyclic groups and aminoalkyl or hydroxyalkyl groups. GAF CORP. 24 Sept., 1968 [3 Oct., 1967], No. 45396/68. Heading C3P. Polymers of N-vinyl heterocyclic monomers, said polymers containing aminoalkyl or hy- ,droxylalkyl groups on the carbon atoms alpha to the nitrogen atom and/or on the carbon atom alpha to the carbonyl group which is adjacent the nitrogen atom, unless the latter is already substituted with a methyl or ethyl group, are obtained by reacting the heterocyclic monomer or its homopolymer with an olefinic alcohol or amine in a solvent in the presence of a peroxide catalyst. The treatment of the monomer may result in simultaneous polymerization and alkylation. A small amount of the alcohol or amine is incorporated as comonomer. The monomers employed are N-vinyl-2-oxazolidone, N-vinyl-3-morpholinone and the 5-methyl- and 5-ethyl derivatives thereof, N-vinyl succinimide, N-vinyl diglycolylimide, N-vinyl glutarimide and monomers of the formula where R and R 1  are hydrogen, methyl or ethyl, and n is 1 to 3 and their thio analogues. In the examples mixtures of vinyl pyrrolidone, N- vinyl piperidone, N-vinyl-#-caprolactam or N- vinyl succinimide with allyl alcohol or amine, 1- amino-3-butene or 5-hexen-1-ol, and of polyvinyl pyrrolidone, piperidone or #-caprolactam with allyl alcohol or amine are heated with dit-butyl peroxide.
Patent GB-1369315-A (GB)
Title: Process for preparing alkylphenols by oxidising alkylbenzaldehydes
IPC: C07C67/00
Filed: 1972-10-05
Abstract: 1369315 Preparation of alkylphenols by oxidizing alkylbenzaldehyde RHONE-POULENC SA 5 Oct 1972 [6 Oct 1971] 45980/72 Heading C2C The invention comprises a process for the preparation of an alkylphenol of formula wherein each of R 1 , R 2  and R 3  which may be same or different represents a hydrogen atom or a linear or branched C 1-5  alkyl radical, with the proviso that the number of alkyl groups represented by symbols R 1 , R 2  and R 3  is 1 or 2, which comprises oxidizing an alkylbenzaldehyde of formula wherein R 1 , R 2  and R 3  are as defined above, with hydrogen peroxide in the presence of an acid with a dissociation constant in water greater than 10<SP>-3</SP> which is an inorganic acid or sulphonic acid, e.g. sulphuric acid, perchloric acid, hydrochloric acid, and p-toluene sulphonic acid, and, if necessary, converting any formate ester of the phenol into the desired alkyl phenol.
Patent GB-1121755-A (GB)
Title: Improvements in or relating to lift installations
IPC: B66B11/02
Filed: 1965-11-01
Abstract: 1,121,755. Lifts. A LODIGE. 1 Nov., 1965 [2 Nov., 1964], No. 46092/65. Heading B8L. A lift car 3 is supported in a shaft from a point M so that the weight of the car and its load always tend to cause rotation of the car about a horizontal axis passing through the suspension point in the same sense. Guide pulleys 14, 15 and 14<SP>1</SP>, 15<SP>1</SP>, Fig. 2 (not shown), run on a vertical guide 2, and a further roller 16 prevents rotation of the car by engaging a guide 17. A single helical guide may replace the guide 2 so that the car rotates as it moves up and down thereby serving angularly spaced exit points. The guide 2 may be replaced by a cylindrical bar on which run pairs of rollers with concave surfaces, Fig. 3 (not shown). The car may be raised by an hydraulic ram instead of a cable in which case the guide 17 is dispensed with. Two guide members may be provided as illustrated in Fig. 5 (not shown).
Patent GB-1440479-A (GB)
Title: Methods and apparatus for cutting spallable material
IPC: E21C25/60
Filed: 1973-10-03
Abstract: 1440479 Jet cutting of materials ATLAS COPCO AB 3 Oct 1973 [3 Oct 1972 (2)] 46127/73 Heading E1F In an apparatus for cutting spallable material at least two mutually inclined high velocity jets 14, 16 of eroding fluid are directed on and moved along the material to form slits 18, 20 in the material, the jets being inclined in a plane normal to their direction of movement and being so spaced apart that material between the slits spalls out to form a groove 12 of a depth in which the jets will be divergent at the base of the groove and will enter the groove without contacting the sides of the groove. The two slits may be formed simultaneously or may be formed alternatively in step wise fashion. The angle between the centre line of each jet and the centre line of the groove may be fixed or adjustable. The jet forming nozzles may be fixed relative to each other or may be movable relative to one another such as being movable apart while the angle between the jets is maintained constant.
Patent GB-1272564-A (GB)
Title: Improvements in or relating to fluid filters
Inventor: MARSHALL DENNIS ALBERT GEORGE
IPC: B01D39/16
Filed: 1968-09-30
Abstract: 1,272,564. Gas filter. D. A. G. MARSHALL. 25 Sept., 1969 [30 Sept., 1968], No. 46399/68. Heading BIT. [Also in Division B5] An air filter comprises a pleated layer of two-ply sheet, one layer 22 of which is phenolic resin impregnated glass fibre woven fabric bonded to the other layer 20 of glass fibre paper having a water-repellant coating which does not block the pores of the glass fibre paper. Bonded to the sheet at the top are rods 24 and attached to a layer of demembraned polyurethane foam 16, and bonded at the bottom is an expanded metal grille with attached demembraned polyurethane foam layer 18. Frame 10 comprises metal casing 26 and rigid synthetic plastics filling 28. The water-repellant coating may be applied as a silane or soloxane solution.
Patent GB-1469446-A (GB)
Title: Device for stripping waste from a sheet die-cut on a platen press
IPC: B21D43/12
Filed: 1974-10-29
Abstract: 1469446 Stripping waste from sheet material J BOBST & FILS SA 29 Oct 1974 [7 March 1974] 46750/74 Heading B4B [Also in Division B8] A device for stripping waste 45 for a die-cut sheet 5<SP>1</SP> comprises two sides frames 25, 26 between which are mounted a fixed plate 12 provided with stripping tools 13 and a vertically movable plate 35 having apertures 36 for the waste, means for conveying sheets including gripper bars 8 fitted between endless chains 9, 9<SP>1</SP>, and lifting means 38 for lifting the conveyer means during vertical movement of the plate 35. The movable plate 35 is mounted on beams 15, 16 which are connected by links 31, 32, Fig. 2, to drive means, the beams being guided by rollers 19, 20, 23 running is guides 21, 22, 24 secured to the frames. The means for lifting the conveyer comprises chain guide bars 38 each pivoted at one end 39 to the side frames and at their other end, connected by a link 40 to a lever 41 (41<SP>1</SP>) pivotally mounted on a shaft 42 secured to the frame. The lever is also provided with a roller 44 engaging a cam 37. In operation, upon raising the beams 15, 16, the plate 35 engages a sheet 5<SP>1</SP> secured by the gripper bar 8 and a chain tensioner is then released. Due to the shape of the cam 37, continued upward movement of the beams causes the chain guide bars to pivot so that the sheet remains in line with the gripper bar 8 during ejection of the waste portions 45, Fig. 3.
Patent GB-1063769-A (GB)
Title: A method and means for connecting and sealing-off between two sections of a pipeline for conveying liquefied gas
Inventor: CHARLES PIERRE
IPC: F16L59/065
Filed: 1965-11-04
Abstract: 1,063,769. Pipe-line closures; pipe Joints. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 4, 1965 [Nov. 19, 1964], No. 46802/65. Headings F2G and F2P. Means for sealing off the connection between the inner tubes of two coupled pipe sections A and B, each section comprising arcuate inner and outer tubes 2, 16 and 1, 18 respectively having a sealed annular space therebetween, comprises a conical plug C carried by a control rod 48 passing through tubular terminal extension portions 27 and 29 of the section B at right-angles to the inner and outer tubes of said section, said valve being adapted to stop the flow of a liquefied gas from pipe 2 to pipe 16 on rotation of the control rod nut 55. Said plug is adapted to seat on an annular seal 41 which is clamped between rings 40 and 5 secured to the terminal portions of the inner tubes 2 and 16 when the sections are coupled together by a screwring 31. The arrangement is such that the sections may be uncoupled and annular seal when worn replaced without the evacuated annular space of either pipe section being destroyed. The innermost end of the inner pipe of section A is connected by ring 5 and a tubular sleeve 3 to one end of outer tube of said section whilst the outermost end of the inner pipe is connected to a sleeve 7 secured to the other end of the outer pipe by a bellows 11, which permits relative expansion between the inner and outer pipes whilst maintaining a vacuum therebetween. The tubular sleeve 3 is received in the terminal portion 27 of the tube 16 and is sealed thereto by compression of a sealing ring 33 when a further screw-ring 30 is tightened. Expansion bellows 50 and 52 disposed between the control rod and the terminal portion 27 of the inner tube of section B and between the control rod and the terminal portion 27 of the outer tube 29 of section B ensure the maintenance of the evacuated space 18 of said section.
Patent GB-1120522-A (GB)
Title: Improvements in filters for gaseous media
IPC: B01D46/10
Filed: 1965-11-08
Abstract: 1,120,522. Gas filter. K. BLACKMAN Ltd. and P. W. SMITH. 15 Nov., 1966 [8 Nov., 1965], No. 47187/65. Heading BIT. A gas filter comprises a casing 101 defining a filtration region 102 which is bordered on two opposite sides by U-shaped channel members 103, which face each other, a filter web 104 spanning the filtration region with its edges disposed in the channel members, the filter web having corded or otherwise beaded longitudinal edge members 111 also disposed in the channel members, limb 107 of each channel member forming a backing for the filter web at the said edge, one or more guide shoes 109 extending towards limbs 107 but short thereof from the other limb of each channel member which provide a guiding surface for the corded or beaded edge members 111 and retain the web against lateral withdrawal from the channel members, and connection members 113. In the embodiment of Figs. 1 and 2 (not shown) guide shoes 109 are replaced by a continuous transverse wall (9).
Patent GB-1123108-A (GB)
Title: Water-insoluble monoazo dyestuffs and process for their manufacture
Inventor: BRACHEL HANSWILLI VON
IPC: C09B29/033
Filed: 1966-10-21
Abstract: The invention comprises water-insoluble monoazo dyes of formula <FORM:1123108/C4-C5/1> wherein R is the residue of a diazo component, free from acid water-solubilizing groups, of the benzene, diphenyl or naphthalene series or of the heterocyclic series having 5- or 6-membered rings containing nitrogen and/or sulphur atoms, including such rings fused with benzene nuclei and the ring K may be further substituted other than by acid water-solubilizing groups. The dye 1 - (21 - cyano - 41 - nitro - phenylazo)-4-(N - b  - cyanoethyl - N - b - phenylethyl - amino)-benzene, described and claimed in Specification 1,068,758 is disclaimed.  The dyes are prepared by the usual azo coupling process using N-b -cyanoethyl - N - b  - phenylethyl - anilines as coupling components.  The dyes may be used to colour cellulose ester, synthetic polyamide, polyacrylonitrile and in particular aromatic polyester fibres in yellow and red to blue shades.  Reference has been directed by the Comptroller to Specification 870,677.
Patent GB-1027643-A (GB)
Title: Basic nitrogen-containing polycondensates
IPC: C08G73/02
Filed: 1962-12-14
Abstract: Polycondensates are made by condensing epichlorhydrin with a C3- 30 primary aliphatic amine or a C4- 60 secondary aliphatic amine and with an aliphatic, aromatic or heterocyclic bis-secondary amine (as in Specification 992,011), and treating the product with an alkali metal or alkaline earth metal hydroxide or carbonate in excess of the amount required for complete neutralization.  Preferred condensates are those derived from n-octadecylamine or n-dodecylamine, epichlorhydrin and piperazine.  The molecular weight of the product decreases in direct proportion to the excess of base added. Sodium hydroxide is the preferred base; the hydroxides, carbonates and bicarbonates of Na, K, Li, NH4, Rb, Cs, Ca, Sr, Ba, and Mg are stated to be suitable.  The products may be mixed with olefin or acrylonitrile polymers in powder, granulated or sintered form, or in solution, and used in the preparation of fibres, films, tapes and other shaped articles.  In Examples n - octadecylamine / epichlorhydrin/piperazine condensates are treated with slight excesses of NaOH, and the products are agitated with water, filtered, washed and dried, and a n-dodecylamine / epichlorhydrin / piperazine condensate is treated with an excess of NaOH and dissolved in methanol, when NaCl is filtered off and the solvent is evaporated.
Patent GB-1525935-A (GB)
Title: Cartridge for a ribbon for typewriters and other office machines
IPC: B41J35/36
Filed: 1975-11-20
Abstract: 1525935 Ribbon cartridge for an office machine ING C OLIVETTI & C SpA 20 Nov 1975 [25 Nov 1974] 47823/75 Heading B8M A roller 52 constituting a take-up reel 51 of a cartridge 6 is resiliently spring biased by a pivoted arm 53 on which it is rotatably mounted, towards a toothed wheel 59 of a drive roller 57 to engage a carbon-coated ribbon 21 with the toothed wheel 59 so that, in use, when the cartridge 6 is inserted into a typewriter or other machine the roller 57 is driven by a driving shaft 66 of the machine to unwind the ribbon 21 from its supply spool 28 to be rewound on the take-up spool 51 after its travel along a printing or other station. When the roller 57 is stationary a lever 38 is spring-biased towards the spool 28 whereby its pin 37 around which the ribbon 21 is guided provides a braking action by engaging with serrations 36 of the flange 32 of the spool 28 to prevent spillage of the ribbon 21 while maintaining tension. The cartridge 6 includes a cover 12. A three-armed spider spring 34 presses the flange 32 against three ribs 33 projecting from the base 8 of the cartridge 6. An opening 42 formed on the base 8 corresponds with a window 43 in the flange 32 and a window 44 provided in the core 29 of the spool 28 to allow a sensor 46 of a logic unit signalling device or microswitch 47 of the machine to detect the presence or absence of the ribbon 21 in the spool 28. The ribbon is guided by the pin 37, arms 16, 17 and cylindrical sectors 67, 68. The cartridge 6 is fixed removably to a support 22 of the machine. In another embodiment the lever 38 includes another pin (76) Fig. 4 (not shown) about which the ribbon 12 is partially trained to keep the load on the ribbon constant irrespective of the diameter of the spool 28.