baber/WOPTO huggingface dataset:
Patent GB-608872-A (GB)
Title: Improvements in and relating to dirigible amphibious craft and steering mechanism for the same
IPC: B60F3/00
Filed: 1945-11-21
Abstract: 608,872. Endless-track amphibians. TRIGGS, W. W. (Food Machinery Corporation). Nov. 21, 1945, No. 31302. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 24, 1946.] [Classes 113 (ii) and 114] In an amphibian 10 having endless tracks 15, 16 or other propulsion means which discharge water rearwardly and deflectors 50 adapted to be moved into the water streams 38 to assist in steering-the craft, the deflectors are mounted on axis disposed outside the water streams and are retracted into protective casings 65 when inoperative. The endless tracks comprise driving blades 36 for engaging the water and discharging it rearwardly through the air above the surface of the water in two spaced streams and are driven by an engine 13, at selected speeds determined by brakes 25, 26; each brake is controlled by a lever 27, connected by a cable 82 to the corresponding deflector which consists of a channel-shaped member 59 pivoted at 56 to the hull and rotatable against the tension of a spring unit 70. The tracks may be totally or partly submerged.
Patent GB-687311-A (GB)
Title: Regeneration of exhausted photographic silver bleaching solutions
IPC: G03C5/395
Filed: 1950-12-27
Abstract: 687,311. Regenerating photographic bleaching solutions. GENERAL ANILINE & FILM CORPORATION. Dec. 27, 1950 [Dec. 30, 1949], No. 31394/50. Class 98 (ii). An exhausted photographic bleaching solution containing an alkali metal ferricyanide, ferrocyanide ions, and an alkali metal bromide is regenerated by adding thereto an amount of a terminal primary alkylamine, an aliphatic or aromatic carbonamide or carbonimide, an aromatic sulphonamide, or melamine, in which the amino, amido, or imido nitrogen is substituted by at least one bromine atom, such that it will release about one molar equivalent of bromine for each molar equivalent of ferrocyanide ion present in the exhausted bleaching solution. An acid or acid salt (sulphuric acid, sulphamic acid, citric acid, hydrobromic acid, or an alkali bisulphate) and an additional bromide may be added to the exhausted bleaching solution. The bleaching solution may contain, in addition to the ferricyanide and bromide, a buffering agent, such as a di-alkali metal phosphate, and a corrosion preventative, such as disodium phosphate, sodium tetraphosphate, or sodium hexametaphosphate. Brominereleasing compounds specified include N-bromobutylamine, N-dibromopentylamine, N-hexabromotriethylene tetramine, N-dibromopropionamide, N-bromourea, N: N<SP>1</SP>-dibromo-N: N<SP>1</SP>- diphenylurea, N-bromophthalimide, N-tetrabromobenzene-m-disulphonamide, and N-tribromomelamine. In example 1, a mixture of sodium N-bromo-p-toluenesulphonamide and aqueous hydrobromic acid is added to an exhausted bleaching solution containing potassium ferricyanide and bromide, dibasic sodium phosphate, and sodium bisulphate. In examples 2 to 5, N-dibromobenzenesulphonamide, potassium bromide, and sodium bisulphate; N- bromoacetamide and aqueous hydrobromic acid; N-bromosuccinimide, sodium bromide, and sulphamic acid; and N-bromobenzamide and aqueous sulphuric acid are added to an exhausted bleaching solution.
Patent GB-1276545-A (GB)
Title: Improvements in and relating to magnesia refractory materials
Inventor: MAHLER ERNST
IPC: C21C5/44
Filed: 1969-06-21
Abstract: 1276545 Magnesia refractories DIDIER. WERKE AG 26 May 1970 [21 June 1969] 31464/69 Heading C1J Magnesia refractory bricks are formed from a granular mixture of sintered magnesia and chemical bonding agent which is dried and impregnated with a high carbon content material e.g. tar. The granular mixture contains about 15% of granules with grain size below 0À1 mm., up to 80% between 1 mm. and 10 mm., preferably 0-10% with grain size between 0À1 mm and 1 mm., 10-20% below 0À1 mm., and more than 65% above 1 mm. The tar content is between 5 and 8%, the magnesia sinter contains not more than 2% Fe 2 O 3 , and the bonding agent is an aqueous solution of sodium polyphosphate with a chain length of 21. The bricks have a gas permeability of over 50 Nanoperm and an average pore size of over 50 microns.
Patent GB-674919-A (GB)
Title: Improvements in or relating to crank mechanisms
IPC: B62K19/34
Filed: 1950-12-28
Abstract: 674,919. Pedal-crank driving-mechanism. SEBEL. H. Dec. 28, 1950, No. 31519/50. Class 136(ii) A crank mechanism comprises a double ended crank member 1, on which are slidably and rotatably mounted a pair of onepiece journal blocks 2. The blocks 2 are fitted before the member 1 is shaped to form at each end a cranked part 3 and a pedal supporting part 4. The blocks are of square shape and seat in square apertures 5 in the downwardly extending legs 6 of a U-shaped support 7 which is secured to members 8 of the bicycle frame. Flanges 9 are formed on the blocks 2 to engage the inner surface of the legs 6. Slots 10 extend from the apertures 5 to allow free passage of the member 1 through the blocks 2 when the latter are moved inwardly out of engagement with the apertures 5. To maintain the crank mechanism in the assembled position a U-shaped spacer 11 is provided which embraces the member 1 and engages the flanges 9 to hold the blocks 2 in engagement with the legs 6. The spacer 11 is removably secured to the member 1 by means of a split pin 13. Alternatively, the blocks 2 may be held in position by a pair of removable split pins.
Patent GB-880229-A (GB)
Title: A basic blast-furnace slag/gypsum mixture for use in the manufacture of plaster boards
IPC: C04B28/14
Filed: 1959-09-16
Abstract: A plaster board composition comprises a mixture of gypsum and basic blast furnace slag, the slag having a hydraulic modulus of 1 to 2,4 and a particle size distribution of 10% to 50% plus 72 mesh B.S.S., up to 40% minus 72 mesh plus 170 mesh, and 10% to 50% minus 170 mesh. The slag is preferably all finer than 8 mesh and the mixture contains 20% to 70% by weight of the slag.  Water is added to the mixture which may also contain plasticisers, foaming agents, surface tension reducing agents, solidification retarding or accelerating agents, paper and glass fibres, and the wet mixture is formed in to boards by rolling, laminates by by rolling between fibreboard material e.g. cardboard or it may be poured on to sheets of paper, cardboard, plastic or glass fibre.  The dried plaster board can also be coated with asphalt mixed with gravel, glass or glass fibre.
Patent GB-851403-A (GB)
Title: Improvements relating to anchoring pins
Inventor: HILTI MARTIN
IPC: F16B19/14
Filed: 1956-10-18
Abstract: 851,403. Anchor bolts &c. ANSTALT FUR MONTAGE TECHNIK. Oct. 18, 1956, No. 31799/56. Class 89(1). An anchor-bolt for driving into concrete, structural-metalwork &c., comprises a smooth shank-part 3 with a penetrating-nose 2, and a screwed shank-part 10 which remains protruding when part 3 is driven in. The thread is so formed that an imaginary-surface 4, including the bottoms of the threads adjacent part 3, is conical to provide a gradual-transition from part 10 to part 3. Similarly, the crests of these threads are included in an imaginary conical-surface 5. The crests of all the threads may be truncated. Specification 793,932 is referred to.
Patent GB-870496-A (GB)
Title: Improvements in or relating to double-acting automatic slack adjusters for brakes
IPC: B61H15/00
Filed: 1959-09-18
Abstract: 870,496. Brake-rod mechanisms. SVENSKA AKTIEBOLAGET BROMSREGULATOR. Sept. 18, 1959 [Sept. 19, 1958], No. 31885/59. Class 103 (1). A double-acting automatic brake slack adjuster of the type comprising a three-part brake rod, two parts 4 and 5 of which have eyes 1 and 2 at the ends of the brake rod for the connection to the brake rigging so as to be rendered, non-rotatable thereby while the intermediate third part rod 3 is rotatable and connected to the one of the other rod parts by a non-self-locking screw connection 6, and to the other part by a locking mechanism comprising coacting abutments 13, 15 in an extension sleeve of the other rod part and on the rotatable intermediate rod part 3. The slack adjuster is adapted to operate under the control of a housing 10 rotatably mounted on the extension sleeve 9 and adapted to be connected to a control mechanism operating automatically independence on the movements of the brake for positively rotating the housing 10, in one direction, on application, and in the other direction, on release of the brake, the coacting abutments 13, 15 being brought into braking stress transmitting engagement with each other in a certain angular position of the housing 10, at the rotation thereof, on application of the brake, and the invention is characterized by the fact that the connecting eye 2 of the non-rotatable brake rod part having the extension sleeve 9, is adjustable into and lockable in any desired angular position, as by nut 18 or screwed part 16 in relation to the sleeve 9. The improvement enables adjustments to be made for re-establishing the original position of the parts without any dismantling of the slack adjuster brake rod. Specification 421,759 is referred to.
Patent GB-301642-A (GB)
Title: Improvements in or relating to electrical control gear for the alternate forward andreverse operation of electric motors
IPC: H02P7/00
Filed: 1927-11-26
Abstract: 301,642. Scarf, C. T., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 26, 1927. Electric braking ; reversing arrangements.- Motors running attarnately in a forward and backward direction, as in the operation of planing-machines, are braked at the end of each run by closure of a braking-circuit which is prepared by the previous closure of contactors mechanicall connected to the directional contactors ; the contactors for preparing forward braking are mechanically interlocked with those for preparing reverse braking so that one pair is open when the other pair is closed. Fig. 2 shows the mechanical connections and interlock between the contactors, which are themselves represented as broken away. The forward running contactors 9, 10 are mounted on a rocking shaft 50 with a lost-motion connection to a shaft 54 carrying the contactors 26, 34 for preparing forward braking. The braking circuit thus prepared is completed through a contactor 28 when 9 and 10 are opened. A similar action takes place between two other shafts 64, 63 as regards the reverse running contactors 11, 12 and the contactors 29, 35 for preparing reverse braking. The shafts 54, 63 are interlocked by a link 61, and are provided with detents whereby each shaft remains latched with its contactors closed until the opposite shaft moves to prepare the opposite braking circuit. The rocking-shafts 50, 64 are operated by electromagnets restrained in action by windings connected in the respective braking circuits. Specification 156,343 is referred to.
Patent GB-791384-A (GB)
Title: Improvements in or relating to arrangements for determining the intensity of radioactive radiation emanating from a zone of which the solid angle may be determined by adjustment
IPC: G01T1/161
Filed: 1955-11-08
Abstract: 791,384. Radiation measuring arrangements. SIEMENS-REINIGER-WERKE AKT.-GES. Nov. 8, 1955 [Nov. 8, 1954], No. 31949/55. Class 40 (3). An instrument for determining the intensity of radio-active radiation received from an area comprises a radiation absorbing tubular element 1 inside which is slidably mounted a measuring instrument such as a scintillation counter 3. The ray entrance window 4 of the instrument is disposed inside the tube 1 so that the solid angle from which radiation passing into the mouth of the tube 5 comes from to affect the measuring instrument is adjustable by axial movement of the instrument itself inside the tube. Mounted on the instrument casing by. means of clamp 6 is a calibrated tube 11 extending through a support 13 on the casing 2 of the element 1. The calibrations 26 on this tube give an indication of the solid angle from which radiation is being received. Sliding inside the tube 11 is a further calibrated member 10 having attached to its extreme end a foot 9. When the foot is placed against the area under test the scale 25 indicates the distance from it to the measuring instrument. Clamp screws 12 and 15 are provided so that the parts 10 and 11 can be secured in any desired position. The foot 9 is made of material capable of transmitting the radiation and may have circular marks on its face to indicate the extent of the area being viewed by the instrument. The mouth of the tube is preferably protected by a cap capable of transmitting the radiation received. It may also support detachable filters or diaphragms. A support clamp 17 substantially at the centre of gravity of the instrument may be used to support it in an angularly adjustable manner on a special stand (Fig. 5, not shown), allowing translational movement in one or more directions. The instrument may be calibrated by the insertion into the end 5 of a crystal mounted container filled with a standard radiating liquid. Preferably the container is of metal with a glass liner.
Patent GB-269227-A (GB)
Title: Improvements in the manufacture of electrical resistances
IPC: H01C17/22
Filed: 1925-12-17
Abstract: 269,227. Morgan Crucible Co., Ltd., and Gow, C. C. Dec. 17, 1925. Direct connections between conductors. - An electric resistance, especially of material such as ceramic material with a mixture of carbon, is formed as a tube or hollow plate of slightly greater resistance than that required, and is brought to the right value by inserting the terminals into the hollow to an appropriate depth and tamping them in with powdered metal. In the arrangement shown the leads b are inserted into the cavity of a tube a and abut against metal plugs e, being tamped in with powdered metal d. The body of the tube a is filled with sand f, a glass rod, or other insulator.
Patent GB-421221-A (GB)
Title: Improvements in and relating to modifying the power factor in electrical discharge appliances with grid control
IPC: H02M7/15
Filed: 1933-11-16
Abstract: 421,221. Converting. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Nov. 16, 1933, No. 31967. Convention date, Dec. 24, 1932. [Class 38 (ii)] Relates to a converting arrangement comprising a discharge device 3 having two groups I, II of anodes fed from the secondary winding of a transformer 1, the star points of these windings being interconnected through an interphase transformer 7, 8 and consists in supplying the grids of anode groups I, II from sources 4, 5 of control potential means being provided for simultaneously advancing the phase of the voltage applied to one group and retarding the phase of the voltage applied to the other group. By this means the voltage of the arrangement operating either as an inverter or as a rectifier can be regulated over a wide range yet retaining a good power factor on the A.C. side. The control can be modified so that arrangement operates with a leading power factor. Specification 409,331, [Group XL], is referred to.
Patent GB-934425-A (GB)
Title: Improvements in or relating to alternators
IPC: H01R39/39
Filed: 1961-09-06
Abstract: 934,425. Brush-holders for dynamo-electric machines; alternators. FORD MOTOR CO. Ltd. Sept. 6, 1961 [Nov. 14, 1960], No. 31979/61. Class 35. In an alternator, a common spring is provided for urging the brushes toward the slip-rings and for retaining the brush assemblies on a pivot. As shown, metal plates 43, 44 are insulated from one another by bushes 103 and attached to end cap 13. Each plate 43, 44 carries three semiconductor diodes 35, 36 which rectify the threephase output from the stator windings 16. The rotating field winding 19 is energized by current fed in via carbon brushes 76, 77 and slip-rings 27, 28. Each brush 76 is retained in notches 75 formed in the arms 73 of an insulated brushholder 65, 66, pivotally supported on integral pins 58 formed in an insulated member 51 clamped between the plates 43, 44. The brushholders 65, 66 are urged towards the slip-rings 27, 28 by a single spring having a pair of coiled ends 83 supported by bosses 70, the coiled ends being connected by a straight portion which abuts against a web 57 of member 51. The ends of the coiled portions engage slots in the brush-holders.
Patent GB-743787-A (GB)
Title: Improvements in or relating to high voltage electrical apparatus
Inventor: WILD ROBERT WILLIAM
IPC: H01H33/16
Filed: 1952-12-17
Abstract: 743,787. Fluid blast circuit-breakers. REYROLLE & CO., Ltd., A. March 15, 1954 [Dec. 17, 1952], No. 32007/52. Class 38(5) A switching impedance J for a fluid-blast circuit-breaker is mounted on a frame J' carried by a stress ring L, and is connected to an arcing contact E' by a conical structure K of perforated metal or rods generating a cone. The free end of impedance J is connected to one wall of chamber A and then through a spider M' to a probe electrode M normally engaged by moving contact G and situated in an exhaust chamber C containing an exhaust valve H of the type shown in Specification 736,088. When the circuit-breaker is closed, chamber A is at the same potential as the contact E, and when the circuit-breaker opens, the movement of contact G, initiates an arc which is drawn through an insulating or insulated metal nozzle B and then extinguished by gas blast, the resistance J being in parallel with the arc. On further movement of contact G a restriking arc is initiated between it and probe M which arc is, however, of small energy due to impedence J in series with it, and can then be easily extinguished. Arcing contact F carries a stress shield F<SP>1</SP>. In another embodiment (Fig. 2, not shown) the free end of the impedance is connected to a rod electrode passing through a metal nozzle which is connected to the uninsulated downstream arcing contact, the movable contact being housed in the wall of the chamber A and movable laterally into contact with electrode E. In yet another embodiment (Fig. 3, not shown) the resistance arc is formed in uncontaminated gas by connecting the impedance J to an annular probe electrode on the upstream side of the nozzle, the movable contact G passing with clearance through the probe electrode and the restriking arc extending between it and the probe in clean gas passing through a metal or insulating nozzle.
Patent GB-911880-A (GB)
IPC: A47D1/00
Filed: 1961-09-06
Abstract: 911,880. Infants' seats. INFANTSEAT CO. Inc. Sept. 6, 1961, No. 32040/61. Class 62 (2). A baby seat comprises a body of flexible resilient sheet material including a bottom 12, back 14 and sides 16, 18, the back 14 having an offset central portion 32 which forms a resilient cushioning member when the marginal portion of the seat back 14 is against a support. A marginal channel-shaped reinforcing and stiffening edge 46, 48 is formed along the forward edges of the sides 16, 18 and seat bottom 12. Slots 38 impart additional resilience to the offset portion 32. The seat may serve as a temporary bed when supported longitudinally.
Patent GB-414739-A (GB)
Title: Improvements in and relating to a.c. boosters
IPC: H02M5/12
Filed: 1932-11-12
Abstract: 414,739. Automatic electromagnetic regulators ; supply systems. FERRANTI, Ltd., and PORTER, G. L., Hollinwood, Lancashire. Nov. 12, 1932, No. 32074. [Class 38 (iv).] Boosting by static transformers.-An automatic tail-end booster comprises a boosting transformer, a winding g of which is in series with the line, the primary winding h being connected at one end to one of the mains e and at the other end to a reactor f, preferably at its mid-point, the ends of the reactor being connectible, one to each of the mains, by mercury tube type switches bl, b2, the solenoids s<1>, s<2> of which are connected in series with the load and operate at different current intensities. With the switch bl open and switch b<2> closed no boost is obtained. With increasing line current switch bl is closed and half-boost is obtained. With further rise in current switch b<2> opened and full boost is obtained. In unbalanced polyphase systems each line is provided with a booster and each of the solenoids s<1>, s<2> has two coils connected in series in the line and neutral wires respectively. In a balanced three wire single phase system, the booster transformer may be provided with two similar secondaries g connected, one in each of the outers, the neutral being ignored.
Patent GB-1479800-A (GB)
Title: Crystal oscillator in an electronic timepiece
IPC: G04F5/06
Filed: 1975-07-31
Abstract: 1479800 Electronic watches CITIZEN WATCH CO Ltd 31 July 1975 [6 Aug 1974 (2) 8 Aug 1974] 32075/75 Heading G3T An electronic timepiece movement comprises a base-plate I carrying an integrated circuit 2 and an AT-cut crystal oscillator 4 as a time standard, the oscillator being bevelled and retained by a ring 5 within a circular recess 1a in the base plate. No separate casing for the oscillator is provided, and the movement may be mounted in a watch case filled with dry air or an inert gas. The opposed surfaces of crystal 4 carry electrodes 42 portions 42a of which extend to the periphery of the crystal where they are connected to the I.C. 2 via wires 6 and conductive strips 7 on the plate 1. At the point of connection to a wire 6, each electrode has a thicker portion 42b.
Patent GB-212223-A (GB)
Title: Improvement in game tables
IPC: A47B25/00
Filed: 1923-12-21
Abstract: 212,223. Ferguson Bros. Manufacturing Co.. (Assignees of Hanley, W.). March 2, 1923, [Convention date]. Mah-Jong tables.-A table for use in playing Mah- Jong or other games is provided with means for removably attaching game piece holders to the table top in playing position. The periphery of the table top is provided at each side with four pockets 3 - -' 6 of different lengths serving as receptacles for paying pieces of different lengths and values. The playing-piece holders 8 each have two headed pins 13, Fig. 5, for engagement with key-hole slots in plates 14 carried by the table top, thus affording a ready means of attaching and detaching the holder. The playing pieces are supported on the walls 9, 10 of the holder. The back of the holder is straight and is used for pushing the pieces along the table. When not in use the holders may be placed in spring clips on the under side of the table. Pockets 7 are provided for holding dice.
Patent GB-1036575-A (GB)
Title: Oxymethylene polymers
Inventor: JENNINGS BRIAN EDMUND
IPC: C08G2/00
Filed: 1963-08-14
Abstract: At least one molar proportion of a cyclic oligomer of formaldehyde is polymerized with one molar proportion of a phenol having the structure <FORM:1036575/C3/1> where X is a halogen or a monovalent group containing no active hydrogen, Y is hydrogen or X, and Z and Z1 are hydrogen, halogen or monovalent radicals and may be the same or different, in the presence of an electrophilic catalyst and no more than a very small amount of water.  Trioxane is the preferred oligomer while boron fluoride, its complexes, Friedel-Craft catalysts, elemental iodine, perchloric acid and acetyl perchlorate are preferred catalysts.  Specified phenols are 4-fluoro, 4-chloro, 4-bromo- and 4-nitro-phenol, and 2,4-dichloro-or dibromo- or difluoro- or dinitrophenol. The polymerization may take place in bulk or solution, in the presence of chain transfer agents, e.g. chlorinated hydrocarbons, alkyl acetates, acid anhydrides and acetals. The polymerization may take place under conditions of shear, and the product freed of catalyst residues and heated in an inert atmosphere to remove terminal hydroxide groups, e.g. with a base. The product may be acylated with a carboxylic acid anhydride.
Patent GB-366114-A (GB)
Title: Improvements in the manufacture of tridymit stones
IPC: C04B35/14
Filed: 1930-10-25
Abstract: Tridymite stones are prepared from sand or quartzite by incorporating calcium oxide, an alkali oxide, and another oxide, as for example of iron, manganese, magnesium, phosphorus, or molybdenum, and heating. In an example, silica, of which 50 per cent is finely ground, is mixed with sulphite lye, 2 per cent chalk, 1,5 per cent soda and 1,5 per cent iron oxide, dried, melted and burnt for 20 hours at cone 15 to 16.