baber/WOPTO huggingface dataset:
Patent GB-782534-A (GB)
Title: Improvements in and relating to a method and an instrument for measuring a vacuum
IPC: G01L21/36
Filed: 1955-05-17
Abstract: 782,534. Measuring fluid pressure. GER-. ATEBAU-ANSTALT. May 17, 1955 [May 19, 1954], No. 14185/55. Class 37. The degree of vacuum in a chamber is measured by using a radioactive substance to establish a potential difference between electrodes which varies with the degree of ionization and using this potential difference as a measure of the gas pressure in the chamber. As shown, the chamber 1 contains stationary electrodes 8, 9, and a rotatable vane electrode 6 which is rotatable between electrodes 8, 9 and has a radioactive coating. Electrode 6 is mounted on a shaft 4 carrying a pointer 10, movable over a scale of gas pressures, and spring-biased at 12 so that pointer 10 is normally at the zero point of the scale. When a gas enters the chamber at 4, the space between electrodes 8, 9 and 6 becomes ionized and caused an angular deflection of electrode 6 and pointer 10 which is a measure of the gas pressure. In another form, the radioactive substance is carried by a plate disposed below lower electrode 8, 9 and journalled on the same shaft as the electrode 6, to which the plate is conductively connected by a metal sleeve. The wall 1 of the chamber may be a permanent magnet so as to provide a magnetic field perpendicular to the plane of the electrodes with the result that the gas ions oscillate between the stationary electrodes and thus cause a higher ionization current.
Patent GB-1058166-A (GB)
Title: Method and apparatus for controlling the temperature in a room
Inventor: WEIBULL NILS RUDOLF MARTIN
IPC: F24F3/147
Filed: 1964-04-07
Abstract: 1,058,166. Thermal switches. INGENIÍRSFIRMAN NILS WEIBULL A.B. April 7, 1964, No. 14294/64. Heading H2B. [Also in Divisions F4, G1 and G3] In the apparatus (21) air from both sides of a heat exchanger situated in an air duct enters chambers (22A, 22B) and the arms of the bimetal elements in each chamber converge on heating and vice versa. The free arms of the elements are connected by respective links (26A, 26B) to one end of respective levers (28A, 28B) with common pivot (27). When the mean of the air temperatures on both sides of the heat exchanger is at a predetermined value neither of the connected contacts (29A, 30A) on lever (28A) are closed against either of the contacts (29B, 30B) on the arms of lever (28B). When the mean air temperature rises above the predetermined value the contacts (30A, 30B) close and activate means to decrease the temperature of the water in the heat exchanger. A decrease in the mean temperatures closes contacts (29A, 29B). In a further embodiment the chambers are superposed and micro-switches of push-button type replace contacts (29B, 30B) and a conical member replaces contacts (29A, 30A) and is axially adjustable on the lever (28A).
Patent GB-1105532-A (GB)
Title: Improvements in flash evaporators
Inventor: GILBERT FREDERICK WALTER
IPC: B01D3/06
Filed: 1965-04-05
Abstract: 1,105,532. Evaporators, flash type; desalination of water. AMERICAN MACHINE & FOUNDRY CO. 29 March, 1966 [5 April, 1965], No. 14338/65. Heading B1B. Liquid-to-be distilled, e.g. salt water, is introduced through a venturi-shaped inlet 22 into a chamber 10 wherein the liquid forms a sheet of particles and some of the liquid and flashes into vapour, the remainder of the liquid impinging against the wall 14 which is 3 to 6 feet from the front wall 12 of the chamber. The vapours pass through mesh filter 34 and opening 32 to a condenser. Several chambers may be arranged in series, the liquid flowing from one chamber to the next through opening 24.
Patent GB-1472824-A (GB)
Title: Catalyst component for the polymerization of olefins
IPC: C08F4/20
Filed: 1975-04-08
Abstract: 1472824 Components for Ziegler catalysts MITSUBISHI CHEMICAL INDUSTRIES Ltd 8 April 1975 [8 April 1974 (2) 4 June 1974] 14376/75 Heading B1E [Also in Division C3] Solid components of the formula wherein M is Ti or V, X is halogen, Y is an aliphatic or cyclic ether, n is 0.01-0.99, 2 < m < 4 and 1 < x < 3 are made by precipitation from an ether solution of an ether complex of a titanium or vanadium halide and an ether complex of a magnesium halide. The solid components are added to organoaluminium compounds to give olefin polymerisation catalysts. The precipitation can be induced by cooling, adding a poor solvent such as a hydrocarbon, evaporating off ether or by mixing concentrated solutions of the individual ether complexes.
Patent GB-928772-A (GB)
Title: Boom and scoop assembly for attachment to a tractor or the like
IPC: E02F3/34
Filed: 1961-04-20
Abstract: 928,772. Shovelling-machines. THEW SHOVEL CO. April 20, 1961 [April, 22, 1960], No. 14384/61. Class 68 (1). A shovelling assembly for mounting on a tractor comprises spaced booms 8, each boom being pivoted at one end 10 to a bracket 11 securable to the tractor and at the other end to a scoop 9 at 12, and a threepart linkage 28, 20, 24 associated and extending through each boom 8 for controlling the tilting of the scoop 9 relative to the boom 8. The 8-shaped link 28, which lies within the boom 8, is pivotally connected at 29 to the associated bracket 11 and at 27 to the further S-shaped link 20, which extends through the boom 8 and is pivotally connected to the boom and to a jack forming the link 24 at 19 and 21, respectively. The jack is connected through a resilient pivot connection 26, 36 to the scoop. The forward portion 16 of the upper surface of each box section boom 8 is downwardly formed to ensure of the jack not fouling the boom. The jacks 40 for swinging vertically the booms 8 are positioned within the booms, being pivotally mounted in the booms at 47 and connected to the brackets at 42.
Patent GB-750132-A (GB)
Title: Improvements in or relating to the automatic frequency control of electric oscillation generator systems
IPC: H03J7/00
Filed: 1953-05-21
Abstract: 750,132. Automatic frequency and tuning control systems. GENERAL ELECTRIC CO., Ltd., and ROBINS, W. P. May 10, 1954 [May 21, 1953], No. 14394/53. Class 38 (4). In an A.F.C. system having both a mechanical and an electrical control of the frequency of an oscillator, e.g. a klystron local oscillator 3, relative to an incoming wave, and including a motor 6 which sweeps the frequency of the oscillator 3 through a range until the output of an A.F.C. discriminator 10 in the electrical control circuit is such that it locks the oscillator frequency, a search stopping circuit 11 energized from a difference frequency circuit 9 through a frequency selective circuit tuned to the difference frequency operates through a relay to stop the search motor 6 when a sufficient output is given due to the oscillator frequency reaching the desired value. The amplitude/ frequency response of the frequency selective circuit is so chosen that at the hold-out frequency (when the A.F.C. circuit may be ener. gized due to the oscillator beating with an image incoming frequency) the search stop circuit is not actuated. The frequency selective circuit may be an I.F. amplifier or passive network responsive, as in the radar transmitterreceiver shown, to an I.F. derived from the local oscillator and transmitted frequencies in the mixer deriving the A.F.C. voltage, or any separate mixer. In Fig. 2 the I.F. input at 21 to the search stopping circuit is applied to an infinite impedance detector 23 through a preset inductance 22 series resonant with the interelectrode capacity of the valve 23 at the desired I.F., and the detected output is applied through a diode 27 to a Miller integrating valve ci cuit 26, normally blocked, but rendered conductive to energize the relay 30 when the desired local oscillator and I.F. is reached over a certain time, so stopping the search and tuning motor 6. The latter operates by driving tuning plungers into and out of the resonator of the klystron 3. Further, a hunting relay circuit 12 is energized when the power output of the klystron local oscillator 3 and hence of a mixer 3 decreases and causes the motor 6 to hunt slightly until increased power output is regained.
Patent GB-575682-A (GB)
Title: Contact clamps for electric cables and wires particularly of light metal
IPC: H01R4/42
Filed: 1943-09-04
Abstract: 575,682. Electric couplings. AKT.-GES. BROWN, BOVERI, & CIE. Sept. 4, 1943, No. 14474. Convention date, Sept. 18, 1942. [Class 38 (i)] A coupling or terminal for aluminium or other soft cables or wires comprises nested contact members a, b, one or both of which has a groove or grooves m in which the cable k is clamped by a bolt e having its axis offset from the groove and from the centre of the structure so as to provide a resilient clamping effect, which may be augmented by a spring washer f. The bolt may also secure the structure to a bus bar or insulating support s. Several modifications are described involving contact members of square or other non-circular section, hollow contact members b and structures having a member a at each end of member b to accommodate two large cables.
Patent GB-659525-A (GB)
Title: Improvements in or relating to warming-boxes for sucking-pigs and other minor domestic animals
IPC: A01K1/035
Filed: 1949-05-30
Abstract: Warming-boxes for sucking-pigs and like domestic animals consist of a vertical cylinder, or polygonal prism, closed at its upper end and having a heat radiator in the middle of the ceiling. Heat-reflecting material is used, and entrance and ventilating openings are provided.
Patent GB-613920-A (GB)
Title: Rotary-grate burners
IPC: F23G5/20
Filed: 1945-06-08
Abstract: 613,920. Furnaces. SAVAGE CO., Inc., W. J. June 8, 1945, No. 14602. Convention date, July 27, 1944. Drawings to Specification. [Class 51 (i)] A combustion chamber for solid fuel comprises a stationary wall within which a grate structure revolves, and a stationary fluid-cooled baffle disposed within the grate structure opposite to the fuel bed. The constructions of the grate, baffle and walls are as described in Specification 613,918. Specification 613,919 also is referred to.
Patent GB-936351-A (GB)
Title: Polyester moulding compositions
Inventor: PARKER FREDERICK JOHN
IPC: C08K3/00
Filed: 1960-04-26
Abstract: A resin composition comprises an unsaturated polyester resin, a copolymerizable monomer, a mineral filler and a thermoplastic polymeric material and is characterized in that the composition, mainly composed of the filler, is of dough consistency suitable for hot-pressing in a mould wherein it is caused to flow and set in a three dimensional shape; in that the amount of monomer is between 5 and 10% by weight of the total composition but less than the amount of polyester resin; in that the main filler ingredient is a substantially non-absorbent powdered mineral filler; in that the thermoplastic polymer will dissolve or swell in the monomer at least when heated but is not converted to a thermosetting material thereby; and in that the thermoplastic polymer comprises 2 to 14% by weight of the total composition.  Examples of the various constituents include the following:-Polyester components ethylene and propylene glycols; pentaerythritol; maleic, fumaric, phthalic, tetrachlorophthalic and adipic acids; Monomers styrene, diallyl phthalate, vinyl toluene, methyl methacrylate and mixtures thereof; Catalyst benzoyl peroxide; Inhibitors hydroquinone, t-butyl catechol; Mineral fillers glass fibres, calcium carbonate, antimony oxide; Thermoplastic polymers polystyrene, polymethyl methacrylate, polyvinyl acetate, polyvinyl chloride, cellulose propionate, polyethylene and a styrene-butadiene-acrylonitrile copolymer; Optional ingredients mould lubricants such as stearic acid and zinc and magnesium stearates; fire retardants such as chlorinated wax.  Specifications 497,175, 540,168, 540,169, 592,046 and 656,138 are referred to.
Patent GB-378547-A (GB)
Title: Improvements in or relating to sewing materials for use in the manufacture of hand-sewn articles such as boots and shoes
IPC: D05B15/00
Filed: 1931-05-18
Abstract: 378,547. Sewing. GODDARD, F., 37, Penrhyn Road, Kingston-on-Thames. May 18, 1931, No. 14660. [Class 112.] Special threads, use of, in sewing.-A multistrand thread for use in hand-sewing boots and like articles of stiff material is formed into lengths necessary for sewing a single article by looping one or more strands 1 of material into loops b .. g, tying or otherwise joining the ends of the loops, and twisting and waxing the thread. Some form of needle, formed for example by twisting, or otherwise securing together, wires or bristles B .. G passed through the ends of the loops, may be attached to the ends of the thread, or the ends may be stiffened in any suitable manner, to facilitate sewing.
Patent GB-726270-A (GB)
Title: Method for preparing chloramphenicol glycosides
IPC: C07H15/04
Filed: 1953-05-26
Abstract: The invention comprises chloramphenicol mono- and di-glycosides of the formula <FORM:0726270/IV (b)/1> where R is an aldohexose residue and R1 is the same or hydrogen, which are prepared by reacting chloramphenicol with 1 or 2 mols of a tetra-acyl-bromosugar in the presence of silver carbonate and a solvent (e.g. ethyl acetate), and hydrolysing off the acyl groups in the product.  Examples are given of the preparation of the mono- and di-d-glucosides.  The amount of silver carbonate may be 8-20 mols. (preferably 15-20 if the di-glucoside is to be formed) per mol. of chloramphenicol.  The reaction time is 3-10 hours.  Hydrolysis of the acyl groups is effected with a 5-10 per cent solution of sodium in a lower alkanol such as methanol.
Patent GB-143063-A (GB)
Title: Improvements in or relating to electrical engine-starting devices
IPC: F02N15/06
Filed: 1919-06-10
Abstract: 143,063. Henn, S. T., and Rushmores, Ltd. June 10, 1919. Turning-gear.-Relates to electric starters of the kind in which a normally decentred armature is drawn electro-magnetically into the central position to effect driving engagement with the engine and is automatically disengaged when the engine is working by its own power, as described, for example, in Specification 1352/15. According to the invention, the brushes are arranged to make contact with the commutator during the axial movement of the armature just before driving engagement is effected, so that the armature rotates or tends to rotate before the driving engagement is effected. Where a short-circuiting ring, spaced axially from the commutator, is employed for bridging the brushes when the armature is in the disengaged position, the brushes are of such a width that they make contact with the commutator just before breaking contact with the ring, for minimizing sparking. In the construction shown diagrammatically in Fig. 2, A is the field winding, B the brushes, J a simple make- and-break switch, C the commutator, I' an insulating-ring, G a conducting-ring, and D a pinion on the armature shaft adapted to mesh with a gear-wheel E on the engine. Just before driving engagement is effected, the brushes B are in contact with both the short-circuiting ring G and the commutator C. In a modification, Fig. 4, the simple switch is replaced by a two-way switch, the two contacts K<2>, K<3> of which are connected to brushes L<1>, L<2> adapted to be bridged by a conducting-ring L on the end of the commutator structure when the armature is in the, engaging position. In operation, the switch arm K is moved over the first contact K<2>, whereby the armature is drawn into the engaging position, to the second contact K<3>, the current then passing through the two brushes L<1>, L<2> and ring L. When the armature is disengaged owing to the engine working, the circuit is broken, so that the armature does not return a second time to the engaging position. In the modification shown in Fig. 6, a resistance M in series with the field winding A is cut out, when the armature is in the engaged position as shown, by the brush L<3> engaging the ring G, the brush B<1> being made wide enough to remain always in contact with the ring G.
Patent GB-748204-A (GB)
Title: Improvements in transistor integrating circuits
IPC: H03F1/30
Filed: 1954-05-19
Abstract: 748,204. Transistor integrating amplifiers. GENERAL ELECTRIC CO. May 19, 1954 [May 26, 1953], No. 14726/54. Class 40 (6). A frequency selective feedback such as capacitor 65 is provided round a temperature compensated amplifier of the type described in Specification 747,521 to give an integrating effect. An impedance matching resistor 52 may be connected in series with the input and a load 67 across the output.
Patent GB-1110651-A (GB)
Title: Improvements in alternating current generator rotors
Inventor: HEARD JEFFREY GERALD
IPC: H02K3/22
Filed: 1964-04-09
Abstract: 1,110,651. Cooling generator rotors. ENGLISH ELECTRIC CO. Ltd. 6 April, 1965 [9 April, 1964], No. 14742/64. Heading H2A. An A.C. generator rotor 19 has a liquidcooled winding from which liguid-cooled winding leads extend along the rotor shaft 38 to a winding energizing source shown as slip rings 56, 57 and each lead comprises two electrically parallel connected hollow conductors 72A, 73A or 72B, 73B, the bores of each pair communicating with each other adjacent the energizing source, the bore of one 72A, 73B of each associated pair of conductors communicating adjacent the winding with an axial inlet bore in the shaft to which liquid is supplied, and the bore of each other 72B, 73A of the associated pair of conductors communicating with the winding coolant liquid flow path; by this construction the liquid flows in each pair of conductors firstly away from the winding to the energizing source and then back towards and into the winding. The liquid flows first from a stationary inlet through two exciter generators before entering the bore 37, and after entering the winding end turns 32 via ducts 25, troughs 41, connectors 42, and the leads described above, passes through the hollow winding to discharge through ducts 26 and another axial bore 39. The bores and ducts may be stainless steel lined, and the source alternatively may be a rotating rectifier network; the leads are as disclosed in Specification 1,108,152.
Patent GB-391325-A (GB)
Title: Improvements in or relating to motor-driven vehicles and the like
IPC: A61G3/00
Filed: 1932-05-24
Abstract: 391,325. Vehicles ; tents. COWELL, E. M., 84, Park Lane, and TROJAN, Ltd., Purley Way, both in Croydon. May 24, 1932, No. 14765. [Classes 103 (ii) and 108 (i).] Luggagecarriers ; ambulances ; caravans.- In an attachment of the kind comprising substantially horizontal support for stretchers &c. arranged above the body of the vehicle and supported from the chassis frame and running boards, the support comprises a flat surface or surfaces, along which the load, such as stretchers, to be carried can be slid. The horizontal support 20 comprises a rectangular tubular frame carried by means of T-pieces 24, 25 by means of four pillars 15, 16, 17 stepped into bottom brackets such as 11, 12, 14. The support 20 may be provided with two pairs of longitudinal members 34, 35 upon which stretchers 37, 38 may be mounted or the support may be used for luggage &c. A frame 44, 46, 49, 50 may be provided above the support 20 upon which a cover 52 is mounted and the support 20 with its pillars 15 .. 17 and superframe 44 &c. may be detached from the vehicle and erected on the ground to serve as a tent the cover 52 in that case reaching to the ground. The support 20 may be used for sleeping berths when camping.
Patent GB-747314-A (GB)
Title: Improvements relating to tapered roller bearings
Inventor: MCNICOLL DAVID
IPC: F16C19/34
Filed: 1954-05-20
Abstract: 747,314. Roller bearings. BRITISH TIMKEN, Ltd. Sept. 22, 1954 [May 20, 1954], No. 14771/54. Class 12 (1). A self-aligning roller bearing comprises rollers 4 disposed between an outer race member 1 having a spherical concave surface 2 and an inner race member 5 having conical race surfaces 6, 7 set at an obtuse angle to one another with an annular thrust rib 8 between them. Each roller comprises two axially spaced convex portions 41, 4<SP>11</SP> having points of contact 11, 12 with the outer race surface 2 and 13, 14 with the inner race surfaces 6, 7. The axis 9 of each roller 4 intersects the bearing axis 3 at a point 10, and lines 15, 16 through the points of contact 11, 12 and 13, 14 respectively also intersect the bearing axis 3 at the point 10. Thus the inner convex portion 4<SP>1</SP> of each roller 4 is of larger diameter than the outer convex portion 4<SP>11</SP>. The conical surfaces 6, 7 may have the same angle of inclination. Alternatively the inner race surfaces are convex or concave and the rib 8 may be replaced by a central rib 24, Fig. 3. In another modification, the inner race member 5 has a convex spherical surface 26, Fig. 5, and the outer race member 1 has conical surfaces 28, 29. The rollers have conical portions 27, 27". Alternatively the surfaces 28, 29 and the roller portions 271, 27<SP>11</SP> may be slightly convex or concave. The inner ends of the rollers 4 may overlap as shown in Fig. 7, in which case the rollers are located by a suitable cage. The application to a single row roller bearing is shown in Fig. 9, and to a thrust bearing in Fig. 8.
Patent GB-480671-A (GB)
Title: Improvements in finely sensitive relays
IPC: H01H47/34
Filed: 1936-05-25
Abstract: 480,671. Electromagnetic relays. SOC. SAVOISIENNE DE CONSTRUCTIONS ELECTRIQUES. May 25, 1936, No. 14776. Convention date, May 24, 1935. [Class 38 (v)] In A.C. relay devices in which a relay proper M, Fig. 4, is inserted in a circuit comprising an iron-cored saturable inductance L, a condenser C and a resistance R of such values as to cause large changes of current I for small changes in voltage U, the relay itself is such a nature that when its armature passes from one position to the other it causes a substantial variation of the total inductance, this variation together with the resistance R being such that the release voltage of the relay is substantially the same as the " operating " voltage. The theoretical considerations are shown in Fig. 3, where the full line curve shows the variation of current with voltage of the circuit when the armature is in its inoperative position and the voltage is first slowly increased from zero and then reduced. The curve shows how the current I increases suddenly when the voltage reaches a value uo and later decreases suddenly at a different voltage ux. The dotted line curve shows the variation of current with voltage for a similar cycle when the armature is in its operative position, and the circuit thus has a different inductance. With a relay device constructed in accordance with the :invention the " rising step " uo of the full-line curve is brought close to the " falling step " u of the dotted curve. The relay " operates " or " releases " at substantially the same voltage u, uo and is very sensitive owing to the steepness of the current-voltage curve. Two relays of the above type responding at voltages very close together may be combined together, Fig. 5 (not shown).
Patent GB-900069-A (GB)
Title: Method and device for coal getting
IPC: E21C27/02
Filed: 1961-04-24
Abstract: 900,069. Mineral-mining apparatus. STAMICARBON N.V. April 24, 1961 [April 25, 1960], No. 14816/61. Class 68 (1). Mounted on for movement along a conveyer 6 is a cutter machine 11 having a cutter head 13 for removing mineral from a face down to the level of the base of the conveyer, the head 13 being so spaced from the face side of the conveyer as to allow through the passage thus formed between the head and said side one or more further cutter machines 8 that are guided along said side of the conveyer. Preferably, the cutter head 13 is of the cutter disc or drum type, and each machine 8 is a plough. The apparatus is primarily for working a faulted seam with the machine 11 removing mineral at the zone of the fault and the or each machine 8 removing mineral from the seam to either side of the fault zone. Specification 693,081 is referred to.