baber/WOPTO huggingface dataset:
Patent GB-1388512-A (GB)
Title: Three phase main exciter
IPC: H02K9/06
Filed: 1972-11-20
Abstract: 1388512 Cooling electric exciter windings KRAFTWERK UNION AG 20 Nov 1972 [20 Nov 1971] 53597/72 Heading H2A In a 3 Ph. main exciter whose armature incorporates a plurality of conductor bars 1, 2 portions 1<SP>1</SP> ,  1<SP>11</SP> of which project as winding end turns from one end of the armature core and which are uniformly disposed in two layers around the outer region of the armature the portions in each layer are for a part of these length so bent together in pairs that the parts of each pair are adjacent each other and that the spacing between neighbouring conductor pairs is greater than that between bar portions at the end of the core, there being a fan 14 secured to the exciter shaft 10 for impelling cooling air into the spaces 5 between the conductor pairs. This construction is to improve the cooling of the end turns, and whilst as shown a single radial fan is provided the fan may alternatively be axial, or there may be two fans at one end or one fan at each end of the exciter. The shaft 10 has a star-shaped cross-section to define axial cooling ducts 11 leading through passages 12 between the armature core laminations 3 towards the field poles 13. A baffle 16 divides the fan output into two streams 17, 18, the former passing through passages 21 between the field poles 13 and the exciter housing 20 to both the remote end turns 22, and the ducts 11, and the latter passing to both the near end turns 29 and the ducts 11. In addition, openings 28 in the baffle 19 permit cooling of the field poles 13.
Patent GB-1168368-A (GB)
Title: Improvements in or relating to Electrical Connectors
IPC: H01R4/40
Filed: 1967-11-29
Abstract: 1,168,368. Electric couplings. G. GL€SEL. 29 Nov., 1967 [10 Aug., 1967], No. 54312/67. Heading H2E. An electrical connector for connecting conductors to terminals comprises a bent metal member 1 having a narrow end portion 8 for insertion into a screw-clamp terminal socket (not shown), an intermediate portion covered by insulation 2 and a wider end portion 6 with a bore, embossed at 7, for a clamping screw 3 which secures a conductor 5 to end 6 by means of an arcuate pressure plate 4. Conductors may be secured on both sides of screw 3 and, by using the arrangement shown in broken lines, vertically offset conductors may be connected to terminals lying side-by-side
Patent GB-1215940-A (GB)
Title: Method and means for screening and de-coupling electronic circuits
IPC: H05K9/00
Filed: 1967-11-30
Abstract: 1,215,940. Electric component assemblies. COMITATO NAZIONALE PER L'ENERGIA NUCLEARE. 30 Nov., 1967 [1 Dec., 1966], No. 64515/67. Heading H1R. Relates to an arrangement for shielding and decoupling electronic circuit assemblies operating at high frequencies e.g. 408 Mc/s. In an amplifier embodiment described a resonant circuit 8 (Fig. 2b) of an input filter and resonant circuits 9, 10 of an output filter respectively including wire loops 81, 9<SP>1</SP>, 10<SP>1</SP> tuned by capacitors 8<SP>11</SP>, 9<SP>11</SP>, 10<SP>11</SP>, are mounted on a base-plate 11 within two parallel channels formed by a member 13 (Fig. 2a) and a common wall 22, joined to the plate 11, a slot in the wall 22 straddling a metal plate 23 on the base-plate as shown in Fig. 3. The channels function as waveguides for interference frequencies. Shield plates 24, 25 are attached one to each face of the wall 22, to prevent coupling between lead wires of active components. For instance, the end of a “ wave coaxial line 29 which is connected to a transistor base electrode (15) (Fig. 1, not shown) is located in a hole 27 in the block 23 mid way between the two shields while the end of a “ wave coaxial line 28 connected to the emitter of a second transistor is located in a hole 26 outside the shields toward the input stage. Holes are also provided in the block 23 to receive the transistors and resistors. A coaxial input signal lead 37 is fastened to the block and connected to the input resonant circuit 8.
Patent GB-1428228-A (GB)
Title: Process for recovering saturated hydrocarbons
IPC: C07C9/00
Filed: 1973-11-23
Abstract: 1428228 Extractive distillation SNAMPROGETTI SpA 23 Nov 1973 [29 Nov 1972] 54611/73 Heading C5E In a process for recovering saturated hydrocarbon from admixture with polar hydrocarbon the feed mixture in the vapour phase is subjected to extractive distillation at 50- 200‹ C. with a solvent mixture comprising an organic solvent and water and water is recovered from an overhead product of the extractive distillation and recycled to the extractive distillation zone at a point higher than the points at which the feed mixture and solvent mixture are fed into the column. As shown in Fig. 2 the vapourized feed 3, recycled solvent 25 and make-up solvent 6 are fed to the multi-plate bubble cap column 4. The overhead 7 is separated into saturated hydrocarbon 11 and water 10 which is recycled to the upper part of the column 4. The bottoms 42 is separated in a column 43 into a solvent stream 25 and an overhead stream from which water streams 46 and 47 are recycled to the column 43 and an aromatic hydrocarbon stream 49 is recovered. According to the second embodiment (Fig. 1, not shown) instead of using a column 43 as in Fig. 2 the bottoms from the column 4 is recycled to the column 4 via the head exchangers 2 and 19 and a vaporous side-stream (12) is removed from the column 4 at a point between the feed inlet 3 and the inlet from the reboiler 20. This side stream (12) is separated in a scrubbing column into a solvent and water containing stream, which is returned to the column 4, and an overhead which is separated into an aromatic hydrocarbon product and a water stream, which is recycled to the top of the scrubbing column. Suitable solvents are morpholine or a derivative thereof such as N-formyl morpholine; in the example a mixture of benzene and 95 wt. per cent n-hexane is separated.
Patent GB-1152068-A (GB)
Title: Circuit Arrangements for the Measurement of Admittances, Impedances or Transfer Functions of Networks or Devices
Inventor: BUHN UWE
IPC: G01R27/02
Filed: 1966-12-07
Abstract: 1,152,068. Measuring impedance or transfer function. FUNKWERK DRESDEN VEB. Dec.7, 1966, No.54675/66. Heading G1U. A measuring circuit arrangement for automatically indicating couplex two terminal or four terminal parameters such as admittance, impedance or transfer function has three branches meeting at a junction 23, one branch including the test component 3 and the others including a standard conductance 1 and a standard susceptance 2. High frequency signals derived from a source 4 and modulated at 9,8 and 10 at different frequencies W3, W1, W2 respectively are fed into these branches via the transformers 6, 5 and 7. A high frequency quadratic demodulator 14 receives the sum of the voltages across the three branches and the output from this is passed to three channels 15,16,17. Selective amplifiers 15 and 16 select signals at the frequencies W 1 +W 3  and W 2 +W 3  respectively which are proportional to the real and imaginary components of the parameter being measured. These signals are rectified at 18,19 and displayed on a metering or cathode ray display arrangement 21. The selective amplifier 17 produces a signal at a frequency 2W 1  or 2W 2  which after rectification at 20 is used to control an attenuator V determining the magnitude of the applied high frequency signal, in accordance with the factor which relates the frequency terms to the actual parameter values, so that the indicator 21 reads these values directly. Four terminal networks are tested by connecting them between transformer 6 and the common point (53, Fig.2, not shown).
Patent GB-1220275-A (GB)
Title: Adjustable fluid restrictor
Inventor: EVANS SHELDON C
IPC: F16K47/04
Filed: 1968-11-19
Abstract: 1,220,275. Valves. S. C. EVANS, and S. A. CUMMINS. 19 Nov., 1968, No. 54847/68. Heading F2V. [Also in Divisions G2-G3] A flow restrictor (see Divisions G2-G3) of the kind in which a flow path is restricted by axial movement of throttling member 128 in casing 137, has a closure member and seat 132 to enable the restrictor to be used as a shut-off valve.
Patent GB-1287464-A (GB)
Title: Apparatus having a pair of lines extending between spaced locations and including a line take-up device
IPC: B65H75/48
Filed: 1969-11-10
Abstract: 1287464 Spring drum apparatus; masted lift trucks CASCADE CORP 10 Nov 1969 [13 June 1969] 54979/69 Headings B8B and B8H A device for taking up and storing portions of a pair of parallel power supply cables 20, 22 intermediate their ends, which cables extend between a masted lift truck body and a load carrier movable on the mast, comprises a pair of coupled coaxial reels 34, 36 supported by the cables passing therearound and through, and being biased in the cable tensioning direction by a spring 70 coupling the reels to a mounting plate 60 incorporating rollers 76, 78 which react against the cables. The spring 70 is wound up by relative rotation between the reels and the plate 60, after which, the cables are layed in S-shaped grooves extending diametrically across the reels, and one of the cables is secured to a reel at 44, the reaction between the rollers 76, 78 and the cables preventing the spring from unwinding. The mounting plate 60 is rotatably mounted within the device by wheels 62 thereon engaging flanges 66, 68 on the reels. In another embodiment, Figs. 6 and 7 (not shown), the rewind spring is elongated and extends partially around the reel and upwardly with the cable for attachment therewith, whereby the reels move relative to the attachment to take up and pay out cable.
Patent GB-1362820-A (GB)
Title: Automatic apparatus for preparing and distributing sheets of wrapping  paper from a continuous web on cigarette wrapping and packing machi nes
IPC: B65B19/22
Filed: 1971-11-29
Abstract: 1362820 Severing foils for wrapping cigarettes E SERAGNOLI A SERAGNOLI and M C SERAGNOLI [trading as G D SAS DI ENZO SERAGNOLI E ARIOSTO SERAGNOLI] 23 Feb 1973 [29 Nov 1971] 55392/71 Heading B8C [Also in Divisions B4 and F2] An automatic apparatus for preparing and distributing sheets of wrapping paper from a continuous web in cigarette wrapping and packing machines comprises a pair of cutting rollers 2, 3 actuated by a drive including a wheel 15 axially movable on a drive shaft and having teeth 18 adapted to engage with teeth 19 on a driven wheel 20, and means 25, 26, 29, 30 for disengaging the drive, the means being controlled by a signal supplied from a device which monitors the flow of batches of cigarettes through the machine. The cutting roller 2 is secured to a shaft 9 on which the wheel 20 is mounted, the latter being formed with a gear 21 which meshes with a gear 22 for rotating the cutting roller 3. The wheel 15 is splined on a shaft 14 axially aligned with the shaft 9, on which is secured a gear 13 meshing with a main drive gear 12; the wheel 15 is urged by a spring 17 and that the teeth 18, 19 are in engagement. A cam groove 16 is formed in the periphery of the wheel 15 and is adapted to co-operate with a finger 30 provided on a sleeve 29 which is secured to a shaft 28. The shaft may be pivoted by a solenoid-device 25, 26, via a lever 27. In operation, when a signal is received indicating a faulty cigarette batch, the solenoid device is actuated thereby pivoting the shaft 28 that the finger 30 engages in the cam groove 16. As the wheel 15 continues to rotate, the helix angle of the cam causes the teeth to be disengaged thereby stopping rotation of the cutter rollers.
Patent GB-1357764-A (GB)
Title: Presses having workpiece transfer means
IPC: B21K27/04
Filed: 1971-11-30
Abstract: 1357764 Workpiece transfer devices SOC DES ACIERS FINS DE L'EST 30 Nov 1971 [8 Dec 1970] 55516/71 Heading B3H A multistage press has a workpiece transfer device which comprises a set of clamps A 1 , A 2 , A 3 , A 4  mounted on horizontal arms B 1 , B 2 , B 3 , B 4  of a carriage C which is vertically movable by a fluid jack V on a further carriage F adapted to be horizontally movable by a fluid jack G in the direction of the clamps and supported on a pivoted arm L so that the transfer device can be retracted from the working stations of the press. Each clamp comprises a pair of jaws M 1 , M 2 , Fig. 7, actuated through a double toggle linkage 10, 13 by an hydraulic unit 8, 9 so that the jaws move forward as they close and backwards as they open. The clamps engage the burr of the forged workpiece and a reciprocable bar R, Fig. 3, supports the workpiece by the burr at the other side during transfer. The bar R is moved synchronously with the jaws.
Patent GB-1283699-A (GB)
Title: Apparatus for testing liquid sprayers
Inventor: NELSON TOM WORSLEY
IPC: G01M99/00
Filed: 1968-11-25
Abstract: 1283699 Measuring fluid-flow JOSEPH LUCAS (INDUSTRIES) Ltd 28 Jan 1970 [25 Nov 1968] 55714/68 Heading G1R In a liquid sprayer testing apparatus manual actuation of a valve 59 commences a purging operation of the apparatus by permitting air from a compressed air source 63, to close a valve 35 and open a valve 58, valves 56, 57 being closed and a vacuum pump 53 switched off. Valve 68 is then opened and, after a delay, air is passed from source 63 via valves 59, 68 and 58 to a probe 19 until a delay timer 69 operates to supply air to an actuator 61 of valve 59. Valve 35 is now opened and valves 58, 68 closed and after a delay valves 56, 57 are exhausted via a shuttle valve 71 and valve 59 is opened to allow pressure signals from probe 19 to reach actuators 54, 55 of valve 50 and, after a delay by a relay timer 70, pressure is re-applied to actuators of valves 56, 57 to lock a control valve 50 in a set position and at the same time the vacuum pump 53 is started. The valve 50 allows a depression to be applied to an inner probe tube 24, Fig. 4, to exactly match the pressure rise resulting from the kinetic head resulting from the movement of gas and liquid from the sprayer 15 towards the probe 19. The gas and liquid drawn into the probe 19 is separated by a device 36, the liquid collects in a bowl 37 and the gas passes into a measuring device 49. The fuel-flow rate is measured as follows:- a clock 46 is automatically started when the liquid in bowl 37 shorts contact 38, 39 and is stopped when the liquid reaches a selected contact 40, 41 or 42, an electrical contact then being made to energize a relay 45 connected to one terminal of the clock The probe is slidably and pivotally mounted in chamber 10.
Patent GB-1280086-A (GB)
Title: Multistage transistor amplifier
Inventor: BLACK JOHN CLYDE
IPC: G05F3/26
Filed: 1970-11-25
Abstract: 1280086 Multi-stage amplifiers INTERTIONAL BUSINESS MACHINES CORP 25 Nov 1970 [11 Dec 1969] 56032/70 Heading H3T A multistage transistor amplifier formed by a plurality of amplifier stages connected in series has in each stage a first group of transistors e.g. D 8 , D 9  having their collector base electrodes connected together to an input terminal and a second group of transistors Q 23 -Q 26  having their base electrodes connected to the input terminal, the transistors D 8 , D 9  and Q 28 -Q 26  of the two groups being of the same conductivity type and having their emitters connected to a common output terminal, the collectors of transistors Q 23 -Q 26  being available for connection to appropriate supply voltages. Owing to the matching of base emitter characteristics, the current flowing through each of the transistors will be nearly identical. Further diode connected transistors D 10 -D 13  are placed in the collector paths of Q 28 -Q 26  so that their collector base voltages will be nearly zero. A load 36 may be connected to selected combinations of the collector currents. The arrangement of Fig. 6 includes a differential amplifier stage 1, a multistage amplifier 12, a push-pull output stage 25 and a bias current source 40. The bias current source 40 comprises amplifying stages 41, 42, 43, the collector currents of the transistors involved being suitably combined to supply bias currents for the other stages 1, 12 and 25. Fig. 4 (not shown) indicates a 4-stage amplifier involving opposite conductivity types of transistors. Fig. 5a (not shown) indicates a multi-stage amplifier suitable for supplying different currents to separate loads.
Patent GB-563316-A (GB)
Abstract: 563,316. Ammeters and voltmeters. SMITH, S. J. March 5, 1943, No, 3660. [Class 37] A moving coil measuring instrument or relay, of the kind in which the coil 25 embraces and moves around a ring-shaped polepiece 13, comprises a cup-shaped casing 7 of magnetic material provided at its open end with an inwardly extending plate or flange 18 forming one polepiece, a permanent magnet 10 mounted on the inner end wall of the casing 7 and a pillar 12 extending from the outer face of the magnet 10 axially of the casing 7 supporting at its outer end the ring-shaped member 13 forming the second polepiece. The permanent magnet 10 is in the form of a round disc, the thickness of which is small compared with its diameter and may be entirely covered by the foot 11 of the pillar 12. The plate 18 has a central aperture of the same diameter as the internal diameter of the ring 13 and a sector portion is cut away to provide clearance between the plate and the upper end of the pillar 12. Greater sensitivity may be obtained by providing a further polepiece extending over another side of the moving coil. As shown, the casing 7 is provided with an extension 16 formed with a re-entrant portion 19 and pole face 20 extending over the face of the polepiece 13. The extension 16 and plate 18 are secured to the casing by bolts 17. In an alternative construction, the plate 18 is bifurcated to form pole faces on both sides of the polepiece 13. The instrument is mounted on the detachable end wall 1a of a moulded cover 1 by means of screws 5 and pillars 6 attached to the end wall of the casing 7. To reduce magnetic leakage a portion of the casing 7 and the extension 16 is cut away. The cross-section of the pillar 12 is such that it is magnetically saturated, so that the effect of slight variations in the size of the air gaps or in the quality of the magnetic material is minimized. Specification 563,315 is referred to.
Patent GB-1410609-A (GB)
Title: Polyurethanes
IPC: C08G18/32
Filed: 1972-12-06
Abstract: 1410609 Polyurethanes DOW CHEMICAL CO 6 Dec 1972 [7 Dec 1971] 56336/72 Heading C3R Solid, rigid polyurethanes are prepared by reacting (A) a polyol containing 2 hydroxyl groups per molecule and having a hydroxyl equivalent weight of less than 250 with (B) an organic polyisocyanate having an isocyanate functionality of at least 2.5, in the presence of a liquid, (C) having a boiling point of at least 150‹ C. and being selected from aromatic compounds, partially hydrogenated aromatic compounds, organic carbonates, halogenated aliphatic hydrocarbons, hydroxyl containing halogenated aliphatic hydrocarbons, cyclic ethers, fatty acids, fatty oils, esters of carboxylic acids, organic phosphates, organic phosphites, organic phosphonates and cyclic sulphones and (D) an organometallic catalyst for promoting urethane formation, the (A) and (B) components being present so as to provide an NCO/OH ratio of 0.8 : 1 to 1.5 : 1, the (C) component being present in a proportion to provide a reaction mixture the exotherm of which does not raise the temperature above the distortion temperature of the urethane resin and the catalyst (D) present in an amount of 0.01 to 10% of the sum of the weights of (A), (B) and (C). The dihydroxy compound (A) may be an alkylene glycol, diethylene glycol, dipropylene glycol, bisphenol A, resorcinol, catechol, hydroquinone or adducts of such compounds with a vicinal epoxy compound. Suitable polyisocyanates (B) are polymethylene polyphenyl isocyanates and reaction products of an excess of an organic diisocyanate with a polyhydroxyl compound containing 3 to 8 OH groups. Numerous liquids (C) are listed, those exemplified being chloronaphthalene, propylene carbonate, the cyclic tetramer of ethylene oxide, tributyl phosphite, tricresyl phosphate, tall oil, dioctyl phthalate, methyl abietate, dimethyl adipate and hexachlorobutadiene. Conventional catalysts (D) are used. The polyurethaneforming compositions are useful as casting materials.
Patent GB-1201226-A (GB)
Title: Resilient floor
Inventor: DAHLBORG RUNE INGMAR DOUGLAS
IPC: E04F15/22
Filed: 1968-11-28
Abstract: 1,201,226. Resilient floor. R. L. D. DAHLBORG. 28 Nov., 1968 [7 Dec., 1967], No. 56459/68. Heading E1W. A resilient floor comprises an upper floor 5, 7 supported on a resilient structure which is itself supported on a support 1, said resilient structure comprising an upper and lower layer of resilient, spaced elements 10, 9, viz. cork discs or plastics capsules, evenly distributed on an intermediate floor 6 and support 1 respectively. The elements 10 of said upper layer are arranged in square formation and are so displaced relative to the elements 9, themselves arranged in square formation, of the lower layer, that each element 10 lies in the centre of the square at the corners of which adjacent elements 9 are positioned (Fig. 2, not shown). The elements 9, 10 are attached to textile or plastics bands 8, 11, 12.
Patent GB-565830-A (GB)
IPC: F23Q1/02
Abstract: 565,830. Gas lighters. BENEY (1938), Ltd., and COALES, F. B. Oct. 22, 1943, No. 17439. [Class 75 (iii)] A gas lighter comprises two arms a, b connected by a resilient loop c, one arm b carrying a file or other striking surface d and the other arm a being twisted through a right angle at f and slit to form two prongs g, h between which a flint k is gripped by the movement of a slider m into engagement with inclined surfaces n on the prongs. Alternatively, the slider m may be fitted with headed pins engaging cam slots in the prongs g, h.
Patent GB-1308289-A (GB)
Title: Method and an apparatus for forming a foil wrapping around a number of bodies assembled into a unit
IPC: B65B9/02
Filed: 1971-12-07
Abstract: 1308289 Wrapping machines J NORDQVIST 7 Dec 1971 [7 Dec 1970] 56735/71 Heading B8C In a wrapping machine, a group 20, of, e.g. toilet rolls, is assembled between the arms 16 of a U-shaped pusher and is pushed on to a platform 11 so as to fold a web 12, of greater width than the group 20, into a U-shape about the group, a pressure plate 21 is lowered on to the group, the web 12 is sealed by welding means 23 to form a tube, and fork members 25 are inserted in to the mouths of the tube and moved apart to stretch the mouths to form slots which are closed by welding means (27, Figs. 8 and 9). During formation of the group 20, a retractable plate 19 co-operates with the pusher to form an enclosed space.
Patent GB-1283280-A (GB)
Title: Recycle process for the preparation and processing of a hydroxylammonium salt solution in a cyclohexanone oxime synthesis
IPC: C07C239/00
Filed: 1970-11-30
Abstract: 1283280 Recycle process in the preparation of cyclohexanone oxime STAMICARBON NV 30 Nov 1970 [6 Dec 1969] 56741/70 Heading C2C In a process for the production of cyclohexanone oxime, a buffered aqueous reaction medium with an acid reaction which contains nitrate ions and phosphoric acid and/or bisulphate, is recycled between a hydroxylamine synthesis zone and a cyclohexanone oxime synthesis zone, and in the hydroxylamine synthesis zone nitrate ions are catalytically reduced with molecular hydrogen in the presence of a palladium catalyst to hydroxylamine, which hydroxylamine is consumed in the oxime synthesis zone, and the cyclohexanone oxime is separated from the aqueous reaction liquid, whereafter this aqueous reaction liquid before being returned to the hydroxylamine synthesis zone is substantially freed of remaining cyclohexanone and cyclohexanone oxime in a stripping process and fresh nitrate ions required for the hydroxylamine synthesis are supplied in the form of nitric acid or nitrous gases; in which the make-up nitric acid or nitrous gases are supplied after the said stripping process for distilling off the remnants of oxime and cyclohexanone has been carried out.