baber/WOPTO huggingface dataset:
Patent GB-665340-A (GB)
Title: Clutch units
IPC: F16D23/12
Filed: 1949-09-22
Abstract: 665,340. Positive clutches. MACLAUGHLAN, H. V. H. Sept. 22, 1949, No. 1216/51. Divided out of 665,270. Class 80 (ii). Axial movement of a slidable dog 28 of a clutch 26, 28, driving the ground wheels of an agricultural machine is described in Specification 665,270, [Group I], is permitted by the lateral flexibility of a chain 31 which drivingly connects the parallel input shaft 33 with a sprocket 30 integral with the clutchdog 28 and slidable with it on a stationary sleeve 22, which,also forms internally a bearing for the output shaft 20 on which is pinned the complementary driven clutch-dog 26. The clutching surfaces are a pin 34 and hole 35 in the dogs 28, 26 respectively. Actuation is through a forkended lever 38, turned about a fixed fulcrum 41 by a manually operated slidable rod 47 and biased to both extremes by an over-centre toggle comprising a forked pin pivoting at 39 on the lever and having one limb 37 on each side of the lever, each limb 37 carrying an expansion coil-spring 44 and sliding in a fixed bracket 42.
Patent GB-126385-A (GB)
Title: Improvements in and relating to Automobile Torpedoes.
Inventor: THOMPSON WILLIAM PHILLIPS
IPC: F01B1/06
Filed: 1917-01-25
Abstract: 126,385. Thompson, W. P., (Soc. Lyonnoise de MÚcanique et d'ElectricitÚ). Jan. 25, 1917. Compressed-air engines. - A radial-cylinder engine for use in torpedoes has five cylinders 1 - - 5, Fig. 2, the skirt of each piston being slotted on one or both sides as at 6 to prevent adjacent pistons fouling each other. The slotted parts may be strengthened by a rib or partition 7. Poppet valves 8, 9, Fig. 1, for the inlets and outlets are mounted on concentric stems 11, 17 worked by cams 10, 13, a lever 15 being interposed between the hollow stem 17 and its cam 14. The inlets are supplied from an annular pipe 18 through branches 19; and exhaust takes place through passages 21, chamber 22, lateral conduits 23, circular chamber 24, perforations 25, and hollow shaft 26.
Patent GB-336888-A (GB)
Title: Improvements in or relating to ladders for roofing, scaffolding, trestles and extending ladders
IPC: E06C7/08
Filed: 1930-01-14
Abstract: 336,888. Beer, E. A. Jan. 14, 1930. Ladders.-The wooden rungs of ladders are provided with grooves on their under surfaces to receive galvanized wire stiffeners, the ends B of which are passed through mortices in the side bars and are then turned downwards and forced into the side bars. The ends of the stiffeners may be bevelled as shown at C.
Patent GB-906234-A (GB)
Title: Improvements in or relating to polyamines
IPC: C23F11/14
Filed: 1961-01-12
Abstract: The invention comprises compounds of the formula R(CH2NHCH2CH2CH2NH2)n, wherein R is the hydrocarbon radical of a polymeric acid R(COOH)n (which may be obtained by polymerization of a C8-24 unsaturated fatty acid) and n is 2 or 3, and salts thereof. The above polyamines are prepared by reacting polymeric acids R(COOH)n with ammonia to produce the corresponding nitriles or by reacting octadecadienoic acid with ammonia at 280 to 400 DEG C. to produce a polymeric acid nitrile, hydrogenating said nitriles to give the corresponding amines of the formula R(CH2NH2)n, reacting said amines with acrylonitrile to form an adduct of the formula R(CH2NHCH2CH2CN)n and reducing said adduct with hydrogen.  Soyabean, linseed, tung, perilla, cottonseed, corn, sunflower, safflower and tall oils, dehydrated castor oil and soap stock provide linoleic acid rich sources suitable as starting materials.
Patent GB-1239853-A (GB)
Title: Gas-chromatographic determination of minute amount of organophosphorous compounds
IPC: G01N30/68
Filed: 1969-01-09
Abstract: 1,239,853. Flame ionization detectors. SUMITOMO CHEMICAL CO. Ltd. Jan.9, 1969 [Jan.12, 1968], No.1486/69. Heading G1N. [Also in Division H1] Minute amounts of organophosphorus compounds are detected in a gas chromatograph apparatus using a thermal ion hydrogen flame detector having a single crystal body 4 of a halide of an alkali metal or alkaline earth metal as the ion source. The crystal body may be recessed as shown at 5 to fit over the burner nozzle 1 with hole 6 in register with the opening 7 of the nozzle. The crystal may be KBr, LiF, CsBr, NaC1, CaF 2  or BaF 2 .
Patent GB-157783-A (GB)
Title: Improvements in or relating to the manufacture of soles for boots and shoes
IPC: A43B13/12
Filed: 1921-01-10
Abstract: 157,783. Chandeysson, U. May 22, 1916, [Convention date]. Soles are made from old motor-car tyres by removing a portion of the tyre and stripping off some of the layers of the fabric backing.
Patent GB-1400380-A (GB)
Title: Fluid pressure modulator
IPC: B60T8/42
Filed: 1974-01-14
Abstract: 1400380 Modulators for antiskid braking systems SOC ANON DBA 14 Jan 1974 [8 Feb 1973] 01597/74 Heading F2F A fluid pressure modulator for an antiskid brake system comprises in a housing having an inlet 14 and outlet 16 and a relief orifice 18, a first chamber 20 connected to inlet 14 by a first duct 22 containing a constriction 24 to the outlet 16 by a duct 26 and to orifice 18 by a duct 28, an electromagnetically controlled valve 32 being biased by a spring 34 to close duct 28 and open duct 22 and being movable by a solenoid 33 to open duct 28 and close duct 22, a second chamber 48 communicating with inlet 14 a duct 50 connecting the chamber 48 to outlet 16 and by-passing the constriction 24 and chamber 20, a second valve 52 urged into the open position by a spring 54 and biased into closed position by a piston responsive to the fluid pressure in a cavity 58 opening into the duct 28 between chamber 20 and a second constriction 30, the valve 52 upon standing in its closed position being responsive to fluid pressures in chamber 48 and duct 50 acting on opposite faces thereof. In operation, when the logic unit (not shown) controlling the antiskid circuit initiates antiskid action solenoid 33 moves the valve member 32 upwards to prevent fluid from the control valve V reaching the brake F which then discharges via duct 26 chamber 20, duct 28, a constriction 72 and orifice 18 the discharge being controlled by piston 44 by means of which valve 40 is closed when pressure in duct 26 is sufficiently high.
Patent GB-695852-A (GB)
Title: Improvements in or relating to extendable table tops
Inventor: ELFORD VICTOR ERNEST
IPC: A47B1/06
Filed: 1950-01-16
Abstract: 695,852. Extensible tables. ELLIS PRODUCTIONS (HIGH WYCOMBE), Ltd. April 4, 1952 [Jan. 16, 1950], No. 1634/52. Class 52(iii) The side rails 2 of a table have horizontal guides 6 to engage the edges of a sliding leaf 3 which is coupled to a series of flexibly connected slats 7, having end pins 9 which also run in the guides 6, which fill the space left as the leaf 3 is drawn out. At their inner ends the guides 6 are continued into guides 11, 10 so that the slats may be housed beneath the leaf 3, as in Fig. 1. A resilient or pivoted gate 13 allows the slats to follow the leaf to the position in Fig. 2 when a rearward push will cause the pins 9 to ride over the gate 13 into the rear extension 12 of the guides, the slats then abutting a fixed central rail 1 or a similar opposed series of slats for extending the other end of the table.
Patent GB-338068-A (GB)
Title: Improvements in and relating to driving systems for electromagnetic loud speakers
IPC: H04R11/00
Filed: 1930-01-17
Abstract: 338,068. Ideal Werke Akt.-Ges. fiir Drahtlose Telephonie. Nov. 25, 1929, [Convention date]. Magnetic instruments. - An electromagnetic driving unit for loud-speakers comprises an armature j, of the shape shown in Fig. 6, torsionally mounted on flat springs i having two limbs o, o<1> which diverge towards the clamping strips k with respect to the rotary axis x-x of the armature, the limbs being provided, preferably near their clamped ends, with recesses r or with interposed small plates of resilient material. The parts are so dimensioned and arranged that up to a large amplitude of the armature the elastic restoring force increases to the same extent as the magnetic attracting force but beyond this it increases so rapidly that even with a very heavy load on the armature and a narrow magnetic air gap, the armature will not strike against the magnet poles. The magnet system may be of the two-pole, double-acting or single acting types or as shown may comprise four laminated poleshoes b secured by screws c to projections d on a base plate e and abutting against the ends of a large horseshoe magnet a carried by the base plate. The base plate also carries a resiliently yielding support h which can be adjusted by a screw (not shown) to centre the armature in the air gaps and on which the cross bars s of the springs i are clamped by strips k and screws m. The rod n connects the armature with. a diaphragm.
Patent GB-122280-A (GB)
Title: Improvements in and relating to Clinometer Attachments for Cameras.
Inventor: FREEMAN ALFRED
IPC: G03B29/00
Filed: 1918-01-31
Abstract: 122,280. Freeman, A. Jan. 31, 1918. Clinometers.-A clinometer for use with a camera comprises a casing 8, Fig. 2, containing scales 15, 16, and a pivoted weighted pointer, and provided with a sight opening 9 and a pivoted member 11 adapted to be engaged with a socket on the camera body.
Patent GB-163403-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/04
Filed: 1920-01-20
Abstract: 163,403. Wycherley, S. R., and Spicer Bros., Ltd. Jan. 20, 1920. Flexible-band files; covers; locks.-In a looseleaf binder of the type in which the clamping- bars are drawn together by winding-up flexible bands which carry the leaves, the winding-shaft is, at one end, adapted to be located by a key, and at the other end is secured against rotation in one direction by a spring-pressed clutch, the movable part of which may be withdrawn and locked out of action by means of a key. The winding-shaft 6 is accommodated m one of the clamping-bars 4, which is provided with a detachable cover having holes engaging pins 36 mounted on semicircular springs 38 in the bar 4. The thongs 1, which are formed of a pliable strip of brass covered with leather or fabric, may be attached by spring clips pressing the thongs into grooves in the shaft, or to flattened portions 33 by rivets. The end 8 of the shaft is shaped to engage with the end 11 of a key 23, which is inserted through a hole in the end of the detachable cover of the bar. The other end' of the shaft is provided with a clutch-member 14 engaging with a longitudinal-movable clutch-member 15, the two members being normally held in engagement by a spring 16 to prevent unwinding. The movable member is mounted in a slide 18 which has a portion 19 projecting into the path forming the extension of the hole 20 in the clamping-bar or pivot pin 21 of the cover 22. The other end of the key 23 is provided with a neck 24, which passes the portion 19 when inserted in the hole 20 as shown in Fig. 3, and a one-sided projection 25 which engages under the portion 19 when turned through 180‹ so that the clutchmember 15 may be withdrawn. The one-sided pull on the key is normally sufficient to retain the clutch in the inoperative position, or a notch 26 to engage the end of the pin 21 may be provided.
Patent GB-1113039-A (GB)
Title: Sizing of fibrous materials
IPC: D21H17/09
Filed: 1967-01-13
Abstract: A composition for sizing fibrous materials comprises (a) a compound of the formula <FORM:1113039/C3/1> wherein R is a hydrophobic organic group, R1 is a hydrogen atom, or a methyl or chloromethyl group, n is 0, 1 or 2, and X is a halogen atom; and (b) a polyalkyleneimine having 2 or 3 carbon atoms in each alkylene group.  It is preferred that X is a chlorine or bromine atom and that the ratio by weight of (a) to (b) is from 1:10 to 10:1.  Suitable hydrophobic organic groups are alkyl, alkenyl, alkyl-phenyl and alkylcycloalkyl groups, optionally containing inert substituents such as carboalkoxy, alkyloxy, aryloxy, arylalkyloxy, keto-(carbonyl), tertiary amide, halogens attached to aromatic carbon atoms, or non-aromatic heterocyclic groups. The polyalkyleneimines include the poly-(N-methylalkyleneimines) which are the polymerization products of N-methyl-ethyleneimine, N-methylpropyleneimine or mixtures thereof.  The ingredients of composition may be combined in a solution or dispersion.  Optional ingredients include alkali metal hydroxides and cationic starch.ALSO:Fibrous materials, such as textile and cellulose fibres, threads, yarns or fabrics, are sized by treatment with (a) a compound of the formula <FORM:1113039/D1-D2/1> wherein R is a hydrophobic organic group, R1 is a hydrogen atom, or a methyl or chloromethyl group, n is 0, 1, or 2, and X is a halogen atom; and (b) a polyalkyleneimine having 2 or 3 carbon atoms in each alkylene group.  Suitable hydrophobic organic groups are alkyl, alkenyl, alkylphenyl and alkyl-cycloalkyl groups, optionally containing inert substituents such as carboalkoxy, alkyloxy, aryloxy, arylalkyloxy, keto (carbonyl), tertiary amide, halogens attached to aromatic carbon atoms, or non-aromatic heterocyclic groups.  The polyalkyleneimines include the poly (N-methylalkyleneimines) which are the polymerisation products of N-methyl-ethyleneimine, N-methyl-propyleneimine or mixtures thereof.  The ratio of (a) to (b) is pereferably from 1:10 to 10:1 by weight and the combined weight of (a) and (b) is preferably at least 0.1 per cent of the weight of the fibrous p  material.  The ingredients of the composition may be combined in one solution or dispersion and added to an anqueous fibrous slurry or pulp slurry, or they may be sprayed on to a fibrous mat.  They may also be applied by tub sizing methods comprising passing the fibrous material through combined or separate solutions of the two ingredients.  Optional additives are alkali metal hydroxides and cationic starch.  The fibrous material may be subsequently dried to give a finished sized product.
Patent GB-244031-A (GB)
Title: Sound funnel for radio-telephony or other sound reproduction
IPC: G10K11/02
Filed: 1925-01-22
Abstract: 244,031. Jorgensen, G. K. V. Dec. 2, 1924, [Convention date]. Wood tubes.-A sound-magnifying horn is built up of two superposed layers of wooden strips a, c, glued together, the inner layer being held together by a helically-wound steel wire b which cuts into the edges of the strips. The Specification as open to inspection under Sect. 91 (3) (a) states also that the same manufacturing process may be applied to tubular wooden articles. This subject-matter does not appear in the Specification as accepted,
Patent GB-413731-A (GB)
Title: Improvements relating to radio receiving apparatus
IPC: H03G3/22
Filed: 1933-01-21
Abstract: 413,731. Valve circuits for wireless reception. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Place, W. P.; 442, Rebecca Avenue, Wilkinsburg, Pennsylvania, U.S.A.) Jan. 21, 1933, No. 2038. Convention date, May 12, 1932. [Class 40 (v).] Automatic volume control is effected by passing the rectified carrier in one direction or other through an asymmetric conductor of the copper-oxide type, the direction depending upon the carrier strength. The voltage across the asymmetric conductor is so adjusted that the resulting control bias changes slowly as the carrier-.input rises from zero to a predetermined limit, and thereafter, increases rapidly as the carrier-strength increases. The output from the amplifier 6 is applied to a full-wave rectifier 8 which builds up a D.C. voltage across the resistances 22 and 24, the latter being connected in series with an asymmetric conductor 26. An adjustable independent voltage is applied to the device 26 by a tapping 27 from a potentiometer 28 fed by a battery 29. Volume-control bias is fed to the grids of the amplifiers 2, 4 from the point 25, the "threshold" sensitivity being determined by the distance between the tapping 27 and a second tapping 30 connected to the cathodes of the amplifiers. The potentiometer may be located at a distance from the receiver for remote control. The initial adjustments are such as to make the point 25 say 2 volts negative. When a signal is received, the negative voltage of the point 25 increases slowly to say 4 volts negative, at which point the current through the device 26 reverses, owing to the action of the battery 29, and the negative control bias thereafter grows rapidly with increasing carrier strength.
Patent GB-977927-A (GB)
Title: A coloured-image reproduction device
IPC: H04N1/50
Filed: 1963-01-16
Abstract: 977,927. Colour television. NIPPON ELECTRIC CO. Ltd. Jan. 16, 1963 [Feb. 20, 1962], No. 2044/63. Heading H4F. [Also in Division H1] In an arrangement for reproducing a coloured image, three phosphor strips 12, 13, 14 disposed in a single cathode ray tube or in separate tubes (not shown) are linearly scanned in synchronism and the output from each strip is collected by a plurality of light conducting elements 18, 19, 20 (at least equal in number to the picture elements in a line) which are joined at 21 as shown to produce successive a single coloured image line, the frame deflection component of the image being provided by a rotating polyhedral mirror (Fig. 1, not shown), an oscillating plane mirror (Figs. 5a, 5b, not shown), or by movement of the light conducting elements, which are made flexible. Preferably the phosphor strips are adapted to emit coloured light (for example red, green and blue respectively). Alternatively coloured filters may be interposed between the strips and the associated fibres or as a further alternative the input ends of these fibres may be coloured. In one arrangement (Fig. 7, not shown) optical fibres are disposed in bundles within the clear glass front of the cathode ray tube. In another arrangement (Fig. 6, not shown) the light from the phosphor strips (disposed behind the glass front) is first focused in a plane before being picked up by the fibres. A projection system is also disclosed (Fig. 4, not shown). For reproducing a photographic copy a photographic film or printing paper is moved transversely across the output ends of the light conducting elements.
Patent GB-1080132-A (GB)
Title: Improvements in or relating to magnetic switching arrangements
Inventor: RANGER MICHAEL HARRY FREDERICK
IPC: G11B5/49
Filed: 1964-01-16
Abstract: 1,080,132. Delay lines. THERMIONIC PRODUCTS (ELECTRONICS) Ltd. Jan. 15, 1965 [Jan. 16, 1964], No. 2066/64. Heading H3U. [Also in Division G5] A delay line comprises a number of seriesconnected windings 2 surrounding magnetic cores 1 and capacitors 3 shunting the windings, the cores 1 having a substantially rectangular hysteresis loop. In order to avoid distortion of a stepped voltage function as it travels down the line from the input 5, each capacitor may be shunted by a resistor 6. The line is intended for successively switching the separate magnetic circuits of a multi-channel transducer head as disclosed in Specification 1,020,422, the cores 1 and windings 2 serving as magnetic switches or flux gates. Fig. 4 shows a single magnetic switching circuit comprising polepieces 9, 10 separated by a non-magnetic gap 11 and having interposed therebetween an annular core 12 and winding 13, this core and winding corresponding to a core 1 and winding 2 of Fig. 1. Recording and replay windings 14 and 15 surround the polepieces 9 and 10, the magnetic circuit formed by the polepieces and core 12 normally being interrupted by the magnetic state of the latter. Upon energization of the winding 13 by the switching pulse which passes down the delay line the magnetic state of the core 12 is reversed to permit a momentary flow of flux through the polepieces and rendering operative the recording or play-back function. A multi-channel transducer head is described with reference to Figs. 5, 6 (not shown).
Patent GB-1189286-A (GB)
Title: Pre-Stressed Bearing Assemblies
IPC: F16C11/04
Filed: 1969-01-14
Abstract: 1,189,286. Connecting-rod. GENERAL MOTORS CORP. 14 Jan., 1969 [15 Jan., 1968], No. 2082/69. Heading F2T. [Also in Division E2] A prestressed bearing assembly for a piston and connecting-rod connection comprises a hollow pin 26 which is received by opposite bearing members 24, 32 and deformed as by bolts 38 into one of the members so that the pin, in its unloaded state, has initial stresses in it opposed in direction to the stresses caused by transmission of compressive forces. The pin is initially cylindrical but is pulled into a bearing surface having a smaller radius by means of a pair of bolts 38 passing through the connecting- rod so as to create the prestresses indicated by arrows 66, 68 and 70, Fig. 4. The bearing assembly is retained in the piston part 12 by a snap ring 16.
Patent GB-1263468-A (GB)
Title: Improvements relating to control arrangements for electro-slag refining apparatus
Inventor: ALLEN ALEC GEORGE
IPC: C22B9/18
Filed: 1968-05-14
Abstract: 1,263,468. Zone melting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 May, 1969 [14 May, 1968; 17 Sept., 1968; 14 Jan., 1969], Nos. 22855/68, 44149/68 and 2095/69. Heading B1S. [Also in Division G3] A control arrangement for electro-slag refining apparatus comprises means for varying the voltage applied between the electrode 3 and the ingot 5 being formed, in response to the difference between the actual growth of the ingot and the growth which will give a shallow dish shaped pool of molten metal at the top of the ingot. In addition, the speed of an electric motor 9 which lowers the electrode into the slag pool 7 may be controlled by unspecified means 25 so as to keep the impedance, and hence the length of the gap constant. The impedance is determined at 23 from a measurement at 19 of the voltage between the electrode and ingot, and the current, measured at 21. The growth of the ingot may be measured by load cells, or the height of the growing ingot may be detected by devices 43 comprising thermocouples, capacitive or inductive sensing devices, X-ray apparatus, devices sensitive to radio active material in the ingot, or devices using sonic or ultra-sonic oscillations, but as shown the growth of the ingot is deduced from the loss in weight of the electrode 3, measured by load cells 27 whose output is compared with a reference at 31 to control the applied voltage at 17. In Fig. 2 (not shown) the electrode is lowered at a constant speed, which corresponds to the desired rate of growth, and the impedance of the gap, measured as in Fig. 1, is a measure of the difference between the desired growth and the actual growth and so this measurement is used to control the applied voltage. In Fig. 3 (not shown) the lowering of the electrode is controlled by the impedance measurement as in Fig. 1, but the growth is determined by measuring the rate of feed of the electrode, comparison of this with a reference being used to control the applied voltage. The comparison may be made electrically or by a differential gear having input shafts rotating at the actual and desired feed rates respectively. It is mentioned that, alternatively, the ingot could be moved towards the electrode, and the growth rate may be varied automatically or manually, particularly at the beginning and end of operations.
Patent GB-1063603-A (GB)
Title: Process for the preparation of polyvinylaromatic compositions
IPC: C08F279/02
Filed: 1966-01-17
Abstract: High impact polymers are made by continuously bulk polymerizing a vinyl aromatic compound in the presence of an unvulcanized elastomer in a plurality of reactors in series, an inert diluent miscible with the polymerizing mixture being present in at least the final reactor, part of the diluent being constantly removed by evaporation from the top of the final reactor during polymerization, at least part of the resulting vapour not being refluxed to the final reactor.  Elastomers specified are polybutadiene, butadiene-styrene copolymers and block copolymers of vinyl arenes and dienes. Diluents specified are benzene, toluene, xylene, ethylbenzene and cyclohexane.  The examples describe the use of the process to polymerize styrene in the presence of:  (1) a butadiene-styrene random copolymer, (2) a mixture of polybutadiene and butadiene-styrene copolymer, (3) a mixture of polybutadiene and a polybutadiene-polystyrene tapered block copolymer, and (4) a polystyrene - polybutadiene - polystyrene block copolymer.