baber/WOPTO huggingface dataset:
Patent GB-1324285-A (GB)
Title: Apparatus for use in electric discharge machining a workpiece
IPC: B23H1/02
Filed: 1971-04-19
Abstract: 1324285 Electro-erosion MITSUBISHI DENKI KK 19 April 1971 [6 Feb 1970] 22098/71 Heading B3V [Also in Division H3] An electro-erosion circuit comprises a machining gap 14 connected in series with a first power source 16, a first switch 30 and a diode 22 which is connected in parallel with a second power source 92 and a second switch 100, which is closed when the first switch 30 is closed and when no discharge occurs across the gap to cause a voltage substantially equal to the sum of the first and second sources 16, 92 to be applied to the gap 14. In one embodiment, transistors 31-3N are switched on by a pulse from a generator 60 via resistors 51-5N causing the voltage of the source 16, e.g., 30-100V, to be applied across the gap 14. A voltage substantially equal to the source 16 is applied across resistors 82, 84, the voltage across the latter of which causes a Zener diode to conduct and a transistor 100 to be switched on. The diode 22 is cut off by the conduction of the transistor 100 and a no load voltage is applied across the gap 14 substantially equal to the sum of the voltages of the power sources 16, 92, the latter source 92 being 50-350V. Subsequently, a lower discharge voltage is produced in the gap 14, which may cause the transistor 100 to be switched off and hence the circuit 90 to be inoperative. Alternatively, the resistances of the resistors 82, 84, are so chosen that the transistor 100 remains conductive. The transistors 31-3N are protected by a single diode 102, or diodes (111-11N) (Fig. 3, not shown). The transistors may be replaced by relays or thyristors.
Patent GB-716942-A (GB)
Title: Improvements connected with cycle bells
Inventor: HYAMS JOSEPH EDWARD
IPC: G10K1/074
Filed: 1952-09-03
Abstract: 716,942. Cycle bells. VIC-TREE PRODUCTS (BIRMINGHAM), Ltd. Aug. 31, 1953 [Sept. 3, 1952], No. 22120/52. Class 13. The clappers 6 loosely mounted on upturned projections 5 of the rotatable clapper bar 4 are urged outwardly by a spring 7. The spring 7 may be a wire or strip and in the case of a single-ended clapper bar the inner end of the spring engages a sleeve at the axis of rotation of the bar. Specification 650,250 is referred to.
Patent GB-677343-A (GB)
Title: Improvements in or relating to pulley bearings
Inventor: WALMSLEY JOHN
IPC: F16C33/12
Filed: 1949-08-25
Abstract: 677,343. Powder metallurgy. MORGAN CRUCIBLE CO., Ltd. Aug. 25, 1950 [Aug. 25, 1949], No. 22144/49. Class 83 (iv). [Also in Group XXXIV] A cylindrical bearing lining 4 of sintered self-lubricating metal for a jockey pulley is fitted in a substantially cubical light metal casting or plastic moulding 1. The sintered metal may be formed as described in Specification 617,809.
Patent GB-778441-A (GB)
Title: Improvements in or relating to apparatus for holding successive animals during operations thereon
IPC: A61D3/00
Filed: 1955-08-03
Abstract: 778,441. Animal holding appliances. CHAFFEY, G., and CHAFFEY, H. Aug. 3, 1955 [Aug. 6, 1954], No. 22293/54. Class 81(2) An animal holding appliance comprises a holding device which normally supports the animal on its back with its head uppermost and is pivotable about a transverse axis so that the animal can be swung over until its forelegs are lowermost and it can then drop by gravity on to its legs. Preferably the appliance is mounted rotatably on a vertical support pillar. 'The pillar 1 has means 2 for attaching it to a fence or post and carries a rotatable sleeve 4 to which a number of holding devices 5 are secured. The sleeve 4 is supported on a collar 4b which'is adjustable for height and is associated with a detent 6 which locates the rotatable assembly in predetermined positions. The angle of the supporting frames 11, pivoted at 10b, and thus of the holders 5, is adjustable by sliding a collar 10 up or down the sleeve 4. Each holding tray is made from a channel-shaped metal sheet 5a having padded hooked members 16, (see also Fig. 4 not shown), for gripping the rear legs and holding 'them apart. Each tray is mounted on a horizontal pivot 11f and is turned over, to eject the 'animal, by disengaging a handle 15 from a catch 14 and turning it about this pivot. This movement also withdraws a pressure plate 20 from the lower part of the tray to remove 'any gripping effect from the animal's hindquarters.
Patent GB-184700-A (GB)
Title: Improvements in vaporising devices for liquid fuels
IPC: F02M21/10
Filed: 1921-08-23
Abstract: 184,700. Fehlmann, A., and Hintermann, G. Aug. 23, 1921. Vaporizers, external.-Air is carburetted with tar oil and such like heavy oil in a carburettor b after being heated in a vaporizer d which heats the carburetted air. The air current represented by the arrows 1 rises centrally through the vaporizer and after being carburetted flows in the ditection of the arrows 3. The exhaust gas flows through the vaporizer in the path indicated by the arrows 2 and its passage is controlled by two throttle valves n, r adjusted by a thermostat comprising a brass rod u, which expands differentially with respect to the casing d on which it is. mounted, and levers t, q.
Patent GB-205937-A (GB)
Title: Improvements in and relating to apparatus for cooling air and other substances
IPC: F24F5/00
Filed: 1922-08-18
Abstract: 205,937. Phillips, F. J. H. Aug. 18. 1922. Cooling air.-Air to be cooled is passed through the apparatus shown in Fig. 1 by fans 11, which may be covered with moistened fabric to purify the air, and is withdrawn by other fans 12 and passed over a frame 16 covered with fabric for drying the air. The cooling unit located in the apparatus comprises an assemblage of tanks 3 in which air expands on being admitted thereto by small orifices 2; it escapes therefrom by larger orifices, not shown. The tanks may contain liquid 4 to take up part of the cold produced by the expansion of the air passing over its surface. In a modified form, Fig. 3, the air to be cooled is passed through tubes (not shown) arranged in a tank 18 containing fluid subjected to the cooling action of air expanding over its surface.
Patent GB-895288-A (GB)
Title: Improvements in or relating to trenching machines
Inventor: CAUDWELL PHILIP GORDON
IPC: E02F3/24
Filed: 1959-07-01
Abstract: 895,288. Bucket wheel excavators. ALLEN & SONS (OXFORD) Ltd., JOHN. June 30, 1960 [July 1, 1959], No. 22540/59. Class 68(1). Each bucket 26 of the bucket wheel of a trench excavator consists of a U-plate, which is secured by the base to the rim 23, 25 of the wheel and by the side limbs 28, 29 to a side limb of the preceding and succeeding buckets. The securing is preferably by means, e.g. bolting, that can be released to allow of replacement of a bucket. The leading limb 29 of the bucket in the direction of rotation of the wheel is preferably shorter than the following limb 28, which is provided with a cutting edge 30. The wheel consists of two L section rings 25 secured in opposition to the sides of an annular disc 23, the inner edge of which is formed with gear teeth allowing of rotation of the wheel. An ejector, preferably such as described in the referred to Specification 895,287, is associated with the wheel for clearing soil out of the buckets sideways of the wheel.
Patent GB-203715-A (GB)
Title: Improvements in or relating to wicks and wick raisers for use in burners
IPC: F23D3/00
Filed: 1922-11-14
Abstract: 203,715. Aladdin Industries, Ltd., (Assignees of Engh, W. B.). Jan. 27, 1922, [Convention date]. Wick burners, flame regulating in; wicks.- A woven lamp wick 1 is fitted with knob-like metal parts 7 engaging holes 6 in upwardly extending flexible arms 5 on a sleeve 4, which is formed with a rack member 13 spaced away from the wick and engaging the wick raising mechanism. The parts 7 are attached to the wick by means of prongs 8 which are bent so as to be guided by the outer surface of the inner wick tube. The wick is stiffened on one or both sides by woven fabric or paper linings 11. Specification 192,366 is referred to in the Specification, as open to inspection under Sect. 91 (3) (a).
Patent GB-935150-A (GB)
Title: Shaft furnaces
IPC: C21B7/18
Filed: 1962-06-13
Abstract: 935,150. Charging blast furnaces. MANNESMANN A.G. June 13, 1962 [June 14, 1961; Dec. 11, 1961], No. 22751/62. Class 51(2). Apparatus for charging a blast furnace having a central offtake 1 extending from a hood 2 secured to the upper rim 3 of the furnace, comprises a rotary hopper 5 fed by a rotary pocketed valve 18 and associated with a vertically movable sleeve controlled by lifting mechanism 12 through a rod 10. The sleeve 7 is guided over a dependent sleeve 2a forming effectively a downward extension of the offtake 1, and a vertically movable deflector 13 is operated by mechanism 16 through a rod 14. In a modification, Fig. 2 (not shown), the rotary pocketed wheel is replaced by a shaft provided with identical upper and lower bell valves operated alternately.
Patent GB-997280-A (GB)
Title: Heat exchanger
IPC: F28D7/06
Filed: 1964-06-02
Abstract: 997,280. Heat exchangers; heating steam boilers by steam. BROWN FINTUBE CO. June 2, 1964 [July 12, 1963], No. 22770/64. Headings F4A and F4S. A heat exchanger comprises bundles of U- tubes 2 with a separate tube sheet 16 for each end of each bundle, and a common supporting member 7 for all the tube sheets, a conduit member 35 for each tube sheet communicating with the interior of the tubes, and fluid-tight seals between the conduit members and tube sheets and between the tube sheets and the supporting member 7 all made by sealing rings 33. The tube bundles shown are surrounded by a shell 1, which has a fluid inlet 12, and an outlet 13 for heated fluid, e.g. generated steam, the bundles being arranged in staggered relationship, and supported by members 41 and 42, resting on the lower inside surface of the shell, and spaced by sleeves 44, 45, carried on long bolts 43. A split ring or like stop 27 prevents inward movement of the tube sheets. The respective ends of the bundles are joined to a supply header 19 and a discharge header 20. The tubes may be fitted with longitudinal fins 52 or transverse fins 56 (Figs. 4-7, not shown).
Patent GB-203507-A (GB)
Title: Improvements in and relating to automatic switching apparatus for electric distribution systems
IPC: H02H3/07
Filed: 1922-08-22
Abstract: 203,507. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 22, 1922. Electric protective arrangements.-Distribution systems comprising a plurality of load circuits each having a circuit interrupter are protected by cutting out a faulty circuit in the event of a moderate overload after which the circuit is automatically restored, and by cutting out all the circuits in the event of any excessive over-load at the same time rendering the automatic reclosing means inoperative. The reclosing means is also rendered inoperative after a circuit breaker tripped on moderate overload has been restored a predetermined number of times with less than a predetermined interval of time between each successive re-closure. As shown three single-phase load circuits 1, 2, 3 are supplied from a three-phase supply 4 and have circuit interrupters 5, 6, 7. With a moderate overload a relay 11 connects its corresponding trip coil 71 to the control circuit 10 allowing the corresponding circuit-breaker to open. After a circuitbreaker has thus opened a circuit is completed through a common time-lag reclosing relay 14 and contacts 34 which, after a predetermined interval, closes contacts 16 so completing a circuit through the circuit-breaker closing coil 8. The operating current for the relay 14 also passes through the coil of a notching relay 18 which moves the spring controlled ratchet wheel 24 one step where it is retained by a spring controlled pawl 27. The pawl 27 is itself controlled by an arm attached to the plunger of a dashpot 26 which is retarded in falling, being raised quickly by each energization of the coil 18. If the relay 18 is not re-energized before the plunger of the dashpot 26 falls the spring 25 restores the arm 29 attached to the ratchet wheel 24 to its initial position against the stop 30. If, however, a circuit breaker is tripped again before this occurs the ratchet wheel is advanced a second step hand after a predetermined number of openings and re-closures of the feeder circuit-breakers the arm 29 moves a bridging member from contacts 21 to contacts 22 so opening the re-closing circuits and at the same time completing the circuits of relays 40, 41, 42 to complete the tripping circuits of any circuit breakers which are still closed. The circuit breakers can only be re-closed by manually restoring the bridging member to contacts 21. In the case of an excessive overload in any circuit the corresponding relay 19 operates and is automatically latched in its raised position until manually restored. This has the effect of energizing relays 40, 41, 42 to trip all the circuit-breakers and also prevents them from re-closing by breaking the reclosing circuits at contacts 32. Each circuit breaker is provided with push-button switches 36, 37 for manually completing the tripping and closing circuits, and with a switch 38 the opening of which prevents the completion of the corresponding re-closing circuit by the common relay 14.
Patent GB-1147453-A (GB)
Title: Improvements in or relating to apparatus adapted for use in feeding lays of sheet material
Inventor: FIRTH ALAN
IPC: A41H43/00
Filed: 1965-05-29
Abstract: 1,147,453. Cutting - out presses. SAMCO-STRONG Ltd. 27 May, 1966 [29 May, 1965; 8 March, 1966], Nos. 22928/65 and 10179/66. Heading B4B. Apparatus for feeding a lay L comprising a plurality of plies of sheet material to a cutting press P comprises a table 2 having a work surface 22 on which plies of material are laid to provide a lay, a plurality of upwardly facing knives 6 mounted on a matrix (8), Fig. 2 (not shown), supported by a. conveyer (52) and a feed roller 12 which engages an upper surface of the lay as the lay is led on to the knives, the roller 12 being rotated with its peripheral speed equal, or substantially equal, to the speed at which the conveyer is moved towards the press. The roller 12 is connected by a chain (64), Fig. 2 (not shown), passing over sprockets to a sprocket (58) meshing with a chain 56 mounted on the conveyer. The roller 12 is mounted for swinging movement between an inoperative position and an operative position in which it engages the lay. In a modification, the feed roller is connected by a chain (64), Fig. 8 (not shown), and sprockets to a cross member (38<SP>1</SP>) which is driven by another chain (124) and sprockets one of which is secured to a motor-driven shaft (90), Fig. 6 (not shown), operatively connected to the conveyer.
Patent GB-359598-A (GB)
Title: Improvements relating to electrically heated domestic apparatus
IPC: F24C15/00
Filed: 1930-07-31
Abstract: 359,598. Electric hot - plates and radiators. IMBERY, A., 14, St. Alban's Avenue, Halifax, Yorkshire. July 31, 1930, No. 23071. [Class 39 (iii).] An electric heater having non-metallic heater elements is provided with hollow terminals A, Fig. 2, to which flow and return pipes c<3>, c<2> from a water tank D are connected. Circulation is by thermo-siphon action but a pump may also be provided. The tank filler cap has holes to allow vapour to pass out to humidify the air, a tap also may be provided. A hot-plate, Figs. 4 and 5, having water-cooled terminals A, is formed from refractory sections F mounted on ledges f of a casing f<1>. The non-metallic resistance rods B are supported between renewable countersunk studs on the terminals and are situated one under each section with refractory separators between. Each terminal has two passages a3, a4 which are connected together by branch pipes a' to form a continuous circuit the ends of which are connected to pipe connections a<10>. The electrical connections are to terminals H mounted in insulating bushes h<1>.
Patent GB-1176245-A (GB)
Title: Apparatus for Cutting a Cast Body of Porous Concrete in Plastic State
IPC: B28B11/14
Filed: 1967-05-18
Abstract: 1,176,245. Cutting porous concrete blocks. INGENJÍRSFIRMA HEBE A.B. 18 May, 1967 [31 May, 1966], No. 23097/67. Heading B5A. Apparatus for cutting a block of porous concrete in a plastic state comprises a cutter head 10 with vertical cutting wires 8 mounted on a carriage 1, the carriage having wheels 2 running on rails 3 and wheels 5 on vertical shafts co-operating with the rails 3 to ensure rectilinear movement. A conveyer 12 has one end attached to fixed support 18, passes over pulley 14 on carriage 1, and is maintained in tension by counterweight system 21. A conveyer 11 is similarly attached to support 17, passes over pulley 13 and is tensioned by counterweight 19. The conveyer surfaces comprise rectangular hollow strips which may be connected together or rest between dogs on the conveyer. In operation, the uncut concrete block is placed on the right hand conveyer belt, with the carriage- 1, as far left as it will go. The carriage is driven to the right by interaction with dogs on conveyer 6 and the cutting wires pass through the block which is transferred from the right hand to the left hand conveyer. The cutting pattern may be changed before the block is fully cut by operating hydraulic ram 39, pulling the top of the right hand conveyer back and thereby separating the two parts of the block; the cutting head 8 then being changed. In alternative embodiment the conveyer may comprise a steel band or ropes and may be continuous and tensioned using an hydraulic device in place of the blocks 17, 18. A sheet of rubber or plastics material is preferably placed between the concrete block and the conveyer.
Patent GB-501290-A (GB)
Title: Improvements in pressure-recording instruments
IPC: G01L23/02
Filed: 1937-08-24
Abstract: 501,290. Hinges. BEALE, E. S. L., and DOBBIE McINNES, Ltd. Aug. 24, 1937, No. 23157. [Class 65 (ii)] [Also in Group XIX] In a link motion transmission for a pressure recording device such as an engine indicator one of the hinge pin bearings is made of large area and with little clearance to give a damping motion. The pin 13 is clamped to a stanchion 11a and between stanchions 11a, 11b by a thumb nut 14 and bolt 15 which latter has a retaining screw 15a to prevent accidental removal and loss of nut 14. The large outer surface of pin 13 is separated from the large surface of a hollow cylindrical sleeve 16 forming part of one link 5 by a minute clearance space in which is a film of viscous fluid retention of which is facilitated by grooves 17 in the pin 13. The pin 13 may be released by screwing back the nut 14, the pin 13 and sleeve 16 then rocking together about the pin 15 like the usual joint, ordinary lubricant being supplied between pins 13 and 15.
Patent GB-292385-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/00
Filed: 1927-09-03
Abstract: 292,385. Soden, J., Soden, H. G., and Newton, S. Sept. 3, 1927. Tobacco pipes.-A two-part bowl a, b, made of briar or the like and provided with interengaging snap fastenings f, g and an inturned flange d constitutes a casing for an inner lining e of clay or the like. A cork sleeve i is placed between the overlapping ends of the member e and mouthpiece h.
Patent GB-426992-A (GB)
Title: Improvements in or relating to lamps for motor road vehicles
IPC: F21V11/16
Filed: 1934-08-11
Abstract: 426,992. Vehicle lamps. POWELL, H. W., Rydal House, Church Lane, Garforth, near Leeds. Aug. 11, 1934, No. 23219. [Class 75 (iv)] In a vehicle lamp in which a hinged light filter or diffusing screen is adapted to be swung down in front of the light source and the upper portion only of the reflector, the screen 5 is hinged at its upper edge to the rear of a casing 2, the lower portion 4 of which constitutes or is fitted with an extension of the rear reflector 1. The casing 2 may be rectangular or pyramidal and the portion 4 may be part cylindrical or part conical. The cable or other operating mechanism may act against a spring whereby the screen may be lowered into any desired position. The screen may be provided with a clear portion preferably located below the light source when the screen is lowered into its operative position.
Patent GB-973306-A (GB)
Title: Separation process
IPC: C07D311/58
Filed: 1962-06-18
Abstract: Clathrate compounds are formed between hydrocarbons and Dianin-type compounds of the formula <FORM:0973306/C1/1> in which X is O, S or NR where R is hydrogen or a substituent group and R1-R14 are hydrogen atoms or substituent groups, at least one containing a hydrogen atom capable of forming a hydrogen bond; preferably one of R10-R12 is amino or hydroxyl.  The clathrate is formed selectively with certain hydrocarbons in mixtures thereof and may be formed by dissolving the Dianin-type compound in hot liquid hydrocarbon mixture or by heating in the mixture and cooling to crystallize, extracting the compound by refluxing the mixture and percolating the condensate over the compound, the clathrate crystallizing in the heated vessel or, if the mixture is vaporous, passing it through liquid compound and allowing it to solidify forming the clathrate. The clathrate is separated by filtration or vaporizing non-clathrated materials and is decomposed by heating or dissolving in aqueous alkali, toluene, xylene, pyridine, acetone, ethanol or ethyl acetate.ALSO:Hydrocarbons are separated from each other by selective formation of clathrate compounds with Dianin-type compounds of the formula <FORM:0973306/C4-C5/1> in which X is O, S or NR, where R is hydrogen or a substituent group and R1-R14 are hydrogen atoms or substituent groups, at least one containing a hydrogen atom capable of forming a hydrogen bond; preferably one of R10-R12 is amino or hydroxyl.  The clathrate may be formed by dissolving the Dianin-type compound in hot liquid mixture or by heating in the mixture and cooling to crystallize, extracting the compound by refluxing the mixture and percolating the condensate over the compound, the clathrate crystallizing in the heated vessel or, if the mixture is vaporous, passing it through liquid compound and allowing it to solidify, forming the clathrate.  The clathrate is separated by filtration or vaporizing non-clathrated materials and is decomposed by heating or dissolving in aqueous alkali, toluene, xylene, pyridine, acetone, ethanol or ethyl acetate, and recovering the hydrocarbon by distillation if necessary. Separation may be effected between molecules of different size and/or shape; clathrates are generally formed readily with compounds containing up to 10 carbon atoms in the molecule. Separation may, for example, be effected between less and more highly branched hydrocarbon, paraffins and naphthenes, paraffins and aromatics, aromatics and naphthenes and between different naphthenes or different aromatics (the first mentioned of each pair selectively forming the clathrate).