baber/WOPTO huggingface dataset:
Patent GB-245391-A (GB)
Title: A mud shield for boots and shoes
IPC: A43B3/16
Filed: 1925-10-03
Abstract: 245,391. Collieson, W., and Rogers, H. Oct. 3, 1925. With attachments for special purposes.- A mud shield a of metal, celluloid, or the like is adapted to rock about the plate into the dotted position on encountering an obstruction and is attached to a wall b the inturned ends c of which are adapted to grip the heel. The plate j is hinged on the wire b centrally of the shield a and is secured to the heel by a pressbutton fastening k, m. Alternatively, the device may have a hook-like lug midway along its upper edge engaging with an eye secured in the heel, or the mid-portion of the wire b may engage in a spring-closed lateral slot, while in a third modification the wire b is dispensed with and a bent-over lug is formed on the upper edge of the shield and connected to an eye of the heel, the ends of the shield being bent to engage one on each side of the heel.
Patent GB-337844-A (GB)
Title: Manufacture of cast iron
IPC: C21C1/08
Filed: 1929-08-13
Abstract: 337,844. Elkington, H. D., (Meehanite Metal Corporation). Aug. 13, 1929. Annealing and modifying physical characters of metals.-In the manufacture of cast iron, iron which has been produced by the methods described in Specifications 210,118, 292,164 and 312,126 is heat-treated by maintaining the casting at a temperature above the Ac1 point e.g. about 1480‹ F. for a period in excess of 12 hours and then cooling. In an example in Which castings are heated to 1650‹ F. for 16 hours. The castings may be withdrawn from the furnace and allowed to cool or may be allowed to cool slowly in the furnace to 1000‹ F. at a rate not exceeding 10‹ per hour and then allowed to cool to room temperature.
Patent GB-360521-A (GB)
Title: Improvements in or relating to rotating parts of machinery, such as hollow shafts
IPC: B60B35/08
Filed: 1930-08-18
Abstract: 360,521. Railway vehicle axles. RINGFEDER GES., Verdingen, Niederrhein, and KREISSIG, E. Linn, Krefeld, both in Germany. Aug. 18, 1930, No. 24720. [Class 103 (vi).] A hollow shaft, particularly a railway vehicle axle, is subjected to an initial axial compressive stress so that the ratio of tensile and compressive stresses set up in use correspond with the ratio of the durability strengths of the material under tension and compression, by reducing the tensile and increasing the compressive stresses. In addition to the bending stresses, torsional stresses are also favourably influenced. The initial compression may be by a tensioned tube or rod 2, which may be of a different material, and be secured at its ends 3 to the hollow axle 1 by screws or by welding. Alternatively the axial compression may be produced by external forces acting on shoulders on, or on the ends of the shaft.
Patent GB-1316792-A (GB)
Title: Sheet assembly particularly for formation of labels
IPC: B41M5/124
Filed: 1970-05-21
Abstract: 1316792 Manifolding sets LITTON BUSINESS SYSTEMS Inc 21 May 1970 [21 May 1969] 24744/70 Heading B6A [Also in Division D2] A manifold assembly (1) suitable for making labels, tapes, posters or bumper stickers comprises at least two sheets. A first sheet comprises a sheet (3), with a pressure-sensitive adhesive coating (5). A second sheet comprises a base sheet (13), with a coloured surface (11), a pressure-sensitive opaque coating (9), darker than and contrasting in colour with the coloured surface, and a transparent release coating (7), overlying the opaque layer and in contact with the adhesive layer of the first sheet. The base sheet may be of paper or plastics. In a modification (Fig. 2, not shown), there are three or more sheets, the intermediate sheets having layers 11, 9 and 7 on one side and 5 on the other. In use, a desired legend is written or typed on the first sheet, which is then stripped off to form the label &c., and leave a legible copy on the second or each other sheet. The sheet 13 may be made strong enough to remain uncut when a die is used to cut the sheet 3 to divide the assembly into separate labels &c.
Patent GB-599941-A (GB)
Title: Improvements in or relating to plug connectors for electric room heaters
IPC: H01R13/713
Filed: 1945-09-25
Abstract: 599,941. Thermal switches. THOMPSON & CO. (SUNBURY), Ltd., R. E., and BENFORD, P. R. Sept. 25, 1945, No. 24816. [Class 38(v)] [Also in Group XXXVI] A thermostatic switch enclosed in the cover 2 of an outlet plug (see Group XXXVI) comprises a U-shaped bimetallic element 14 one end of which carries a contact 19 and an armature co-operating with a magnet 200 secured to the switch base 13 so as to cause the contact 19 to move in and out of engagement with a fixed contact (not shown) constituting one switch terminal, with a snap-action. The other end of the element 14 is secured to a bush 15 threaded on a spindle 21 projecting through the cover 2 and carrying a control knob 27 for adjusting the temperature at which the switch operates by moving the element towards or away from the fixed contact. The bush 15 is connected by a leaf-spring 17 to the other terminal of the switch.
Patent GB-806972-A (GB)
Title: Improvements in bleeder valves
Inventor: MILLARD DENNIS JOHN
IPC: B60T11/30
Filed: 1954-08-26
Abstract: 806,972. Valves. BOULTON PAUL AIRCRAFT Ltd. Feb. 18, 1955 [Aug. 26, 1954], No. 24819/54. Class 135. A bleed valve for bleeding air from an hydraulic system comprises valve bodies 7, 8 screwthreadedly connected together and housing spring-loaded loose ball valves 1, 2 arranged in tandem with a tapper connection 14 therebetween. A push member 12 unseats the valves against their springs and system pressure to bleed air through an outlet 22.
Patent GB-803225-A (GB)
Title: Improvements in or relating to electron tubes having ceramic envelopes
IPC: H01J19/34
Filed: 1955-08-30
Abstract: 803,225. Thermionic valves. EITELMcCULLOUGH, Inc. Aug. 30, 1955 [Feb. 4, 1955], No. 24850/55. Class 39(1). A double-diode, -triode, -tetrode or -pentode comprises a generally cylindrical envelope having side and end walls, the side wall comprising metallised ceramic rings 1-5, 22 and 23 with a metal ring 6-9, 19 and 21 sandwiched between each adjacent pair of ceramic rings, metallic bonds uniting the ceramic and metal rings, a double cathode and heater structure comprising a pair of electron emitting cathode discs 13 and a common heater 16, opposite ends of the heater being connected to different ones of a first pair 7 and 8 of the metal rings, and a pair of conductive supports 14, one for each of the cathode discs 13, which supports extend inwardly from a second pair 6 and 9 of the metal rings, the first pair 7 and 8 of metal rings having terminal tabs H<SP>2</SP> and H<SP>1</SP> for the heater 16 and the second pair 6 and 9 of metal rings having terminal tabs K<SP>2</SP> and K<SP>1</SP> for the cathode discs 13, and the end walls 11, 12 of the envelope being of stamped-out dish-shaped copper discs forming anodes and having terminal tabs P<SP>2</SP> and P<SP>1</SP>. In the double-triode construction shown in Figs. 7 and 9 a pair of conductive supports 18 for the disc-shaped grids 17 extend inwardly from a third pair 19 and 21 of the metal rings, the grid supports being of conical shape and having nested in them the anodes 11, which are dished to form conical surfaces. The metal rings 19 and 21 have terminal tabs G<SP>2</SP> and G<SP>1</SP> for the grids 17. All the electrodes can be of slightly domed formation. The ceramic rings can be of alumina metallised by a molybdenum-manganese sintering process and the metal rings are about À020. inch thick or less and can be of copper. The ceramic and metal rings are brazed together using high temperature brazing alloys such as copper-gold, some of the parts preferably being first brazed together in subassemblies. The brazing material can be in the form of thin flat rings À005 in. thick. Flanges 24 and up-turned lips 26 are provided on the metal rings to facilitate assembly. The structure can be evacuated through an exhaust tubulation or the parts, held apart, can be placed in a vacuum furnace and outgassed, the cathode activated, and finally the parts brought together and the final brazing, e.g., with copper-silver alloy, effected in the vacuum furnace by radiant or induction heating methods. The cathode discs 13 can be of oxide-coated nickel and each cathode support 14 can comprise a number of, e.g., three, spaced wire rods. The heater 16 can be a coil of insulated wire of toroidal formation.
Patent GB-1501150-A (GB)
Title: Isocarbostyril derivatives
IPC: C07D405/12
Filed: 1975-07-11
Abstract: 1501150 Isocarbostyril derivatives NISSHIN FLOUR MILLING CO Ltd 11 July 1975 24855/77 Divided out of 1501149 Heading C2C Novel compounds of Formula II wherein R 1  is C 1-4  alkyl and Y is OH and X is halogen or X and Y together complete an epoxide ring and mixtures thereof are prepared by reacting a 4-hydroxy-2-alkylisocarbostyril with a compound of Formula III wherein X is halogen, in the presence of a base and if a mixture is obtained if desired separating the epoxide or halohydrin from the mixture.
Patent GB-486379-A (GB)
Title: Improvements in and relating to sound-producing devices
IPC: G10K5/00
Filed: 1937-09-13
Abstract: 486,379. Whistles . BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 13, 1937, No. 24889. Convention date, Sept. 12, 1936. [Class 13] A sound-producing device, for use in calibration purposes and adapted to produce a note of a predetermined frequency with a sharp cut-off, comprises a resonating tube 1 having one end provided with a restricted orifice 4 and the other end in direct communication with an enlarged chamber 7 to which air or other fluid is supplied. The chamber 7 is fed by a tube 11 from a cup member 12 connected to a source of operating fluid. The diameter of the chamber 7 is considerably greater than that of the tube 1 and, as shown in Fig. 4, the inner lip of the orifice 4 is bevelled as indicated at 16. The orifice 4 is formed in a, cap 3 forming the end of the tube 1 and provided with a projection 5 which locates the end of the device relative to microphone 17 or similar apparatus which is to be calibrated. The device may be utilized to indicate variations of fluid pressure from a value it is desired to maintain, the device being adjusted so that the variations give rise to notes of different frequencies.
Patent GB-321751-A (GB)
Title: Improvements relating to hand-tackers or stapling appliances
IPC: B25C5/08
Filed: 1928-08-30
Abstract: 321,751. Johnstone, D. V., and Statham, A. E. Aug. 30, 1928. Strips of staples.-A staplestrip for use in a hand-stapling appliance has its prongs a<1> in a flat condition, that is, unbent. The strip is inserted in the appliance in a coil or roll. Reference has been directed by the Comptroller to Specifications 312,221 and 313,035.
Patent GB-764529-A (GB)
Title: Improved steel mesh runways
Inventor: MURPHY ALBERT VINCENT
IPC: E01C9/08
Filed: 1953-09-09
Abstract: 764,529. Metallic fabrics. BRITISH REINFORCED CONCRETE ENGINEERING CO., Ltd. Dec. 8, 1954 [Sept. 9, 1953], No. 24900/53. Class 45. [Also in Groups VIII and X] A prefabricated panel for use in the construction of a runway or the like comprises two spaced-apart longitudinally and transversely displaced steel mesh panels and at least one intermediate sheet 16 of fireproof material therebetween. The member 16 may be made from suitable plastic material or from mild steel sheet which is corrugated as shown and provided, if desired, with reinforcing ribs formed by indentations pressed in the surfaces between the flat surfaces 17, 18. The steel mesh panels are welded to the member 16 which may rest on a layer of felt. Specifications 559,457 and 559,524 are referred to.
Patent GB-683810-A (GB)
Title: Improvements in or relating to the regulation of electric supply circuits
Inventor: KELLY RICHARD
IPC: H02J3/38
Filed: 1949-09-28
Abstract: 683,810. Supply systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 22, 1950 [Sept. 28, 1949], No. 24946/49. Addition to 615,906. Drawings to Specification. Class 38 (iv). In a supply system as described in the parent Specification, in which a variable load is supplied at substantially constant voltage by a number of parallel working supply units and in which the number of units in service at any time is automatically controlled by the magnitude of the load, a sequence switching means is now provided for predetermining at will the order in which the units are brought into service. In the system particularly described, the sequence switching means comprises an individual plug and a unit-controlling relay for each unit, each plug being insertable in any of a corresponding number of jacks which are associated with contacts of a single load currentcontrolled device, whereby an increasing number of jacks become energized as the load current increases. Energization of a jack causes operation of the unit-controlling relay of the associated plug and consequent switching on and bringing into service of the unit which it controls. The jacks may be provided in duplicate, whereby a spare unit may be brought into service in parallel with one already in service, prior to replacing the latter. Each unit may comprise a rectifier supplied through a tap-changing transformer and circuit breaker, the last being operated to connect the transformer to the mains supply when the unitcontrolling relay is energized. A marginal current relay of the unit then operates the tap-changing gear, through a reversible motor and clutch until the unit takes its load, whilst a voltage marginal relay across the load circuit controls the tap-changing gear of all units to maintain a constant voltage in the load circuit. A switching system is provided which allows the unit to be manually controlled, when desired an elaborate system for giving warning in case of failure of different parts the supply system is also provided.
Patent GB-914525-A (GB)
Title: New n-substituted carbamic acid esters and a process for the production thereof
IPC: C07C271/06
Filed: 1961-07-11
Abstract: The invention comprises carbamic acid esters of the formula:- <FORM:0914525/IV (b)/1> in which R1 and R4 represent hydrogen or an alkyl, aryl or aralkyl group and R2 and R3 represent alkyl, aryl or aralkyl groups.  The above compounds are prepared by reacting a 3-hydroxy alkylamine of the formula <FORM:0914525/IV (b)/2> with ethyl chloroformate.
Patent GB-1342967-A (GB)
Title: Rotors
IPC: B04B7/08
Filed: 1971-04-19
Abstract: 1342967 Making centrifuges MESSERSCHMITT-BOLKOW-BLOHM GmbH 19 April 1971 [11 April 1970] 25248/71 Heading B3A A rotor has a thin-walled cylindrical casing 1 and at least one closure member 2, 3 secured in the bore of the casing, the closure member comprising a ring 3 affixed to the wall of the casing and a disc portion 2 closing the ring portion, the mating parts of the casing and ring portion being of the same thickness and modulus of elasticity, the parts being located away from the region of bending stress created by rotation of the rotor. The casing 1 and the closure member are made by cold-working, e.g. spinning, and is affixed to the casing by an adhesive. In the construction of gas centrifuges, the bore of a casing (5), Fig. 3 (not shown), is divided into chambers (6), by a number of closure members secured wholly inside the bore.
Patent GB-967121-A (GB)
Title: Drive mechanism for chain or chain saw
IPC: B27B17/08
Filed: 1962-07-02
Abstract: 967,121. Sawing. McCULLOCH CORPORATION. July 2, 1962 [April 23, 1962], No. 25283/62. Heading B5L. A chain saw comprises a sprocket-wheel assembly 24 having sprocket teeth 35 for engaging means 43 on the chain, and means 29 on the assembly for carrying the chain in a constant radial position. The sprocket assembly is keyed to an engine drive-shaft 25 or clutch drum of an engine of the saw and drives the chain over a bar 20 adjustably secured by bolts 16 to a frame portion 11, the bar being constructed of laminated plates 18, 19, 20 to form a groove 21 for tangs 43 on the centre links of the chain. The sprocket assembly has a sprocket 26 which has teeth 35 and is sandwiched between discs 29, the outer peripheries of the sprocket and disc being at the same radius. As the chain is driven by the sprocket assembly, the centre and side links engage the outer peripheries of the sprocket and discs so as to be maintained in a constant radial position on the assembly. The leading ends of the centre and side links have projections 45 which engage the outer periphery of the assembly shortly before the body of the links to reduce the vertical movements of the links on the sprocket assembly and on the bar adjacent the sprocket assembly as they engage the latter. The links have curved inner portions 67 to aid the positioning of the links on the sprocket assembly. The spacing between the sprocket teeth 35 is such that they only engage the tangs of links about to leave the sprocket assembly and are spaced from the links just received by the sprocket assembly to reduce interference as the chain engages the assembly. The side discs 29 have elliptical holes 38 for permitting chips which enter the pockets 36 between the sprocket teeth to be expelled therefrom. The chain saw has a sequence of cutters comprising a flat-sided centre cutter 71, a right-hand offset side cutter 72 having a depth gauge 73, a right-hand offset centre cutter 74, a left-hand side cutter 77 having a depth gauge 78, and a left-hand centre cutter 79. As the cutters and depth gauges run over the sprocket assembly, their outer surfaces are on arcs of equal radii whereby the saw can be sharpened by a whetting member fixed to the frame of the saw. In an alternative embodiment, the sprocket assembly comprises two sprockets sandwiching a disc, and the chain has its side links provided with tangs engaging the teeth of the sprockets. The bar has its centre plate projecting from the side plates to form a tongue or track on which the centre links ride.
Patent GB-1236538-A (GB)
Title: Improvements in power supply arrangements for coolant circulators of nuclear reactors
Inventor: IVANOFF VICTOR
IPC: G21C9/00
Filed: 1970-05-26
Abstract: 1,236,538. Cooling reactors. HAYWARD TYLER & CO. Ltd. 26 May, 1970, No. 25317/70. Heading G6C. In a liquid-cooled nuclear reactor a glandless, immersed centrifugal pump coolant circulator is driven by an electric motor, which, in the event of a power supply failure, receives an emergency supply from a flywheel driven generator. During normal operation, the emergency generator is driven as a motor, from the main supply. The pump motor, 1, is driven by motor 2 energized from supply 3. The stator, 8, of the synchronous induction motor, 9, is energized from 3, and the rotor, 10, is energized by the exciter 15 carried on the rotor shaft, 11, together with the flywheel, 12. Upon failure of 3, motor 9 serves as an alternator and supplies the motor 2. In an alternative form, the motor 9 may be a salient-pole rotating field synchronous motor with a damper cage rotor. A protective relay system prevents a fault at 9 overloading the supply 3 both during start-up and normal running.
Patent GB-1077950-A (GB)
Title: Improvements in and relating to hypodermic syringes
Inventor: DOW JAMES
IPC: A61M5/178
Filed: 1965-06-16
Abstract: Hypodermic syringe barrels may be made of a polymer of 4-methylpentene-1.  The syringe barrels may be sterilized by steam or by irradiation, and are resistant to solvents such as paraldehyde, benzyl benzoate, aniseed oil, ethyl oleate and benzyl alcohol.ALSO:Hypodermic syringe barrels may be made of polymers of 4-methylpentene-1.  The barrels may be used in disposable syringes in which the plunger is made of poly 4-methyl-pentene-1, polystyrene, polypropylene, polymethyl methacrylate or a polyamide, and is provided with a rubber piston.  The barrels withstand sterilisation by steam or irradiation.
Patent GB-700849-A (GB)
Title: Improvements in or relating to circuit-arrangements for frequency changing of high-frequency oscillations
IPC: H03J5/24
Filed: 1952-10-10
Abstract: 700,849. Superheterodyne circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 10, 1952 [Oct. 13, 1951], No. 25432/52. Class 40 (5) In a frequency-changing circuit utilizing a multigrid valve in which signals are applied to one grid and local oscillations to another, in switching to an ultra-high frequency range a resistance 10 is switched in parallel with the grid condenser 4. In this way excessive self-bias, due to grid rectification of local oscillations transferred to the signal grid at these frequencies, via the internal valve capacities, is prevented.
Patent GB-627465-A (GB)
Title: Improvements in or relating to "quick" freezing machines
IPC: A23B4/06
Filed: 1947-09-18
Abstract: 627,465. Freezing fish &c. BURNLEY, Sir C. D. Sept. 18, 1947, No. 25467. [Class 29] The goods are quick frozen by a current of air which is cooled while passing through the freezing chamber by passage over finned cooling tubes 4 or finned channelled plates forming shelves through which brine or other coolant is passed, the fins 30, 12 running parallel to the direction of air flow. The freezing chamber 1 is mounted above a storage tank 2 for brine and contains a number of shelves 4 accessible through separate doors. The shelves may be built up of side-by-side finned tubes 29, Fig. 5, the spaces between which are filled up by distance strips 34, or of flat castings having parallel fins cast thereon over which a cover plate is fixed to form channels for the refrigerant, the cover plate and the under surface of the casting having parallel fins 12. The goods are loaded into metal trays 13 with lids 14, and fins may be provided on the trays and lids. A fan 15 circulates air as shown by the arrows, and brine is circulated through the shelves in a direction opposite to the air. The brine tank 2 is filled through openings 23 and may be emptied through a pipe 22. The apparatus may be built up to any desired length by standard end sections and any number of intermediate sections, the tube connections being covered by a sheathing to reduce air friction. The shelves have grooves removably mounted on rails on the walls of the chamber, and carry transverse rails to locate the trays. Defrosting may be carried out by an electric heater located adjacent the fan.
Patent GB-1445487-A (GB)
Title: Releasable latching device for an electrical switch
IPC: H01H33/30
Filed: 1974-06-07
Abstract: 1445487 Latching electric switches SIEMENS AG 7 June 1974 [7 June 1973] 25498/74 Heading H1N A latch 15, Fig. 2 mounted on the wall 11 of a switch chamber 12 for cooperation with the switching mechanism (not shown) is released by an increase of pressure in the chamber 12, acting on a piston 4 coupled to the latch 15 by flange 16 and operating in a cylinder 1. The fluid in the chamber 12 enters the cylinder 1 through a restriction 13 and moves the piston 4 against the action of compression springs 5, 6, the load in which is adjustable by screws 9 engaging a backing plate 10. The restriction 13 delays the release of the latch 15 in the event of flash-over so that an associated circuit breaker may interrupt the current before the switch operates. The latch 15 is returned to its operative position by a spring 8.