baber/WOPTO huggingface dataset:
Patent GB-1452989-A (GB)
Title: Apparatus for and methods of cutting a stack of layers of sheet material
IPC: B23K26/402
Filed: 1974-05-21
Abstract: 1452989 Cutting by laser beam G STUMPF 21 May 1974 [22 May 1973] 22722/74 Heading B4B A device for cutting a stack of layers sheet of material, e.g.: foil or textiles, comprises projecting means 9, 10, 13, 14 for projecting a thermal cutting beam i.e.: a laser beam 11, towards the material and movable relative to the material to effect cutting thereof, and spacing means 21 for spacing apart the layers of material in the vicinity of the cutting beam so as to substantially prevent the thermal cutting process from causing the fusing together of adjacent ones of the layers of sheet material. The spacing means shown in Fig. 3 comprises a number of annular discs 21 secured to a pin 23 which is connected to the outer race of a bearing 24, the inner race being mounted on the focusing head 14 of the laser beam. The outer periphery of each disc is rounded in order to pass freely between the layers of material. In a modification shown in Figs. 4 and 5, spacer strips 31 are secured at their ends to a carriage 2 of the cutting device (fully described in Application 22762/74), the strips each being formed with a longitudinal slot for the passage of the beam 11. In a further modification, the spacing means may be provided by sheet material, e.g.: paper which is combusted during cutting by the beam thereby preventing fusion of the adjacent layers.
Patent GB-1313221-A (GB)
Title: Liquid sampling apparatus
IPC: B01L3/02
Filed: 1970-05-12
Abstract: 1313221 Pipetting apparatus, automatic analysis AMERICAN OPTICAL CORP 12 May 1970 [12 May 1969] 22865/70 Heading B1X [Also in Division F1] A pipetting apparatus comprises a barrel 20 which has an open upper end 21 normally closed by a slating 30 against which the barrel is urged by a spring 28. A hollow tube 22 is movable in barrel 20 and communicates with a length of flexible tubing 24 which is connected to a pipette nozzle 26. Liquid is drawn into or discharged from barrel 20 by raising or lowering tube 22. The volume of liquid drawn into or discharged from the device is determined by the abutment of a projection 52 on a rod 46 which moves with the tube 22 against stops 54 arranged at the periphery of an aperture in a plate 50 which is replaceable by similar plates with different arrangements of stops 54 for different sequences of operation of the device; alternatively, the stops 54 may be adjustable or different steps may be selectively mounted on the plate 50. The device is rinsed by depressing rod 46 to lower barrel 20 against the bias of spring 28, whereupon water under pressure is allowed to flow from correction 34 into barrel 20, and passes to discharge via tube 22, tubing 24 and pipette nozzle 26. The pipetting apparatus may be mounted in a frame having a bracket which holds a piece of polyurethane foam sponge (60 in Fig. 4, not shown) the sponge serving to wipe the tip of the pipette between pipettings. Movement of the tube 22 may actuate a microswitch to cause the advance of sample and process turntables.
Patent GB-1410212-A (GB)
Title: Method of and apparatus for ultrasonic testing
IPC: G01N29/24
Filed: 1972-05-16
Abstract: 1410212 Ultrasonic testing of material DEFENCE SECRETARY OF STATE FOR 16 May 1973 [16 May 1972] 22947/72 Heading H4D A method of ultrasonic testing a hot object utilizes an emitter transducer so that ultrasonic energy passes between the transducer and test object, the heat from the object being at least partially prevented from reaching the transducer along the ultrasonic energy path by means of a cooled heat-radiation-absorbent body in said path. Transducers 12 are arranged in a circle (only two transducers being shown) behind a water-cooled annular shield 14. A water cooled metal cone 18 directs the ultrasonic energy 16 via blackened surface 19 on to a hot billet 10. The heat from the billet is absorbed to a large extent by surface 19 so that the transducers are protected. In the embodiment of Fig. 2 (not shown) the transducers are inclined so that the ultrasonic energy is focused to a fine point on surface (11<1>) of the billet. In the embodiment of Fig. 3 (not shown) the transducers direct ultrasonic energy away from the billet on to a parabolic heat absorbing ultrasonic reflector (26) which focuses the energy on to a small point on the surface (11<11>) of the billet (10<11>). Specification 1,410,211 is referred to.
Patent GB-772976-A (GB)
Title: Improvements in refrigerator cabinets
IPC: F25D23/04
Filed: 1955-08-09
Abstract: 772,976. Refrigerators. GENERAL ELECTRIC CO. Aug. 9, 1955 [Aug. 10, 1954], No. 22949/55. Class 29. A storage container 20 is pivotally connected to the door of a refrigerator cabinet and may be swung from a storage position with its rear wall adjacent the door to a second position forward and down from the storage position, preferably by means of links 25, 26 pivoted to brackets 28 attached to the refrigerator door. The link 26 is pivoted to the container 20 at 41 while the link 25 has at its free end a pin 38 sliding in a slot 37 in the wall 27 of the container 20. In the storage position the links are inclined slightly back towards the refrigerator door and a catch 32 holds the container in place. Flaps 34 and 35 are bent out of the bracket 28 to act as stops in the second position, the flap 34 supporting the lower edge of link 25 while flap 35 abuts an extension 36 to link 26. In the second position the container may be tilted slightly forward about pivot 41 for easier access. The container is preferably mounted beneath an upper, wider container 21 on the refrigerator door and so for use with stepped shelves in the refrigerator compartment, thus utilizing all available space.
Patent GB-615369-A (GB)
Title: Improvements in and relating to steel hatches for ships
IPC: B63B19/203
Filed: 1946-08-01
Abstract: 615,369. Ships' hatches. MACGREGOR, J. Aug. 1, 1946, No. 22955. [Class 113 (i)] A hatch cover is formed of units hinged together in pairs, these pairs being independently moved to the hatch end and up-ended together. One member of a pair such as 2B is first hinged on top of its related component 2A, and the pair are then jointly moved on rollers 23 to the hatch end and then up-ended till stop pins 17 engage recesses in a storage rack. Sections are held together by hooks 36.
Patent GB-407876-A (GB)
Title: Improvements in and relating to machines for the manufacture of short tubes, rings, or the like from strips of woven fabric
IPC: B29C70/42
Filed: 1933-08-17
Abstract: 407,876. Tube &c. winding machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Mansur, C. W. ; 32, Spruce Street, Malden, Massachusetts, U.S.A.) Aug. 17, 1933, No. 23001. Convention date, Aug. 17, 1932. [Class 99 (ii).] A machine for winding edgewise a strip of woven fabric, treated with an adhesive such as artificial resin, to form a short tube, ring &c. comprises essentially a channelled former or mandril 51, Fig. 1, removably mounted on a rotatable and axially movable shaft 7, a member 26 fixed to the machine bed 1 and provided with a projecting collar 27 which is engaged by the channel 52 of the mandril during the winding operation, and a strip - feeding ring 19 mounted on a rotatable shaft 4 and adapted to be pressed against the bottom of a recess 29 in the member 26 by springs 21. In operation, Figs. 2 and 3, the end of the strip A is fed to the space between the ring 19 and surface of the recess 29 through a slot 31 in the fixed member 26, and the ring 19, which is provided with sharp-edged radial teeth 20, forces it round the recess to a diagonal slot 30 in the member 26 into which it is deflected by a bevelled plate 34 and which directs it into the channel of the mandril. The shafts 4, 7 are coupled by a shaft 9 in such a manner that the shaft 7 is driven at a slightly slower speed than the shaft 4 to compensate for the shortening of the strip A due to curving.
Patent GB-1161716-A (GB)
Title: Improvements in or relating to Thermochemical Scarfing
IPC: B23K7/06
Filed: 1967-05-18
Abstract: 1,161,716. Thermochemical scarfing. UNION CARBIDE CORP. 18 May, 1967 [19 May, 1966], No. 23020/67. Heading B3V. In a thermochemical scarfing process the molten slag is removed from the reaction zone Z by positioning across the workpiece a deflector surface 12 to which is supplied a stream of fluid such as water to wash away the slag particles. The latter are forced into a slag shoot 14. Surface 12 is a concave pocket facing the reaction zone Z. The workpiece W is moved along a roller table R. In another embodiment, Fig. 2 (not shown), used for scarfing all sides of a billet, the deflector surfaces (16) are flat.
Patent GB-170152-A (GB)
Title: An improved process for the desulphurizing of gases
IPC: C10K1/32
Filed: 1920-08-04
Abstract: 170,152. Johnson, J. Y., (Badische Anilin- & Soda-Fabrik). Aug. 4, 1920. Sulphur is obtained from coal gas by treating the gas first with a washing liquid such as moderately concentrated sulphuric acid or with charcoal to remove tarry constituents and then with active charcoal in the presence of oxygen or air. The sulphur is deposited on the active charcoal and may be extracted by a solvent, leaving the charcoal for re-use. A small amount of ammonia or ammonium carbonate may be added to the gas entering the reaction vessel or to the catalytic mass therein, after purification of the gas with an acid.
Patent GB-586243-A (GB)
Title: Improvements in or relating to windscreens
IPC: B64C1/14
Filed: 1944-11-20
Abstract: 586,243. Windscreens. WESTLAND AIRCRAFT, Ltd., and RICHARDS, S. T. A. Nov. 20, 1944, No 23050. [Class 20 (iii)] Windscreens particularly applicable to combat aircraft comprise two transparent sheets a, b, of considerable, e.g., 2 in., thickness, abutting at part of one edge on a line lying in a central vertical plane of vision C-C of the pilot and embodying in the region of the shutting edges an opaque supporting bar d of such width as to be invisible to the pilot owing to the refraction of light through the sheets. The line of abutment may be sloped at about 60‹ to the vertical and the angle contained between the sheets may be about 90‹. The sheets may be laminated or single toughened sheets of glass and may be curved forming continuous curves with side panels.
Patent GB-381660-A (GB)
Title: Improvements in or relating to wringing and mangling machines
IPC: D06F45/00
Filed: 1931-08-17
Abstract: 381,660. Mangling and wringing machines. WILKINS, W. S., (trading as WILKINS & MITCHELL), Phoenix Works, The Green, Darlaston, Staffordshire. Aug. 17, 1931, No. 23084. [Class 138 (ii).] In a wringing or mangling machine having two rollers mounted in bearings which can slide vertically in the side frames a tiltable draining tray is provided below the lower roller mounted so that the weight of the rollers and the pressure applied thereto retain or help to retain the tray in either of its inclined positions. Rollers 5, 6 are mounted in vertically sliding bearing blocks 2, 3, the pressure being applied by a spring 10 acted on by a spindle 11 passing through a pivoted nut 12 as described in Specification 379,500. A fixed draining tray comprising two oppositely inclined portions 16, 17 and a horizontal portion is bolted to the main frame by roundheaded bolts 14. Above this tray is a tiltable tray 19 having semicircular recesses 21 in the upturned ends 20 which engage pins 22 fixed in the bearing blocks 3 of the lower roller. On the bottom of the tray 19 are projections 23 which engage with the round heads of the bolts 14 so that the tray is held in its inclined position and can only be raised and tilted into the other position against the weight of the rollers and the pressure applied by the spring 10. Instead of projections on the tray engaging with projections on the main frame, e.g. the securing bolts 14, projections on the tray may engage with depressions on the frame or depressions on the tray with projections on the frame. The pins 22 instead of being fixed in the bearing blocks may be fixed in blocks slidably mounted below the bearing blocks.
Patent GB-596284-A (GB)
Title: Improvements in or relating to miniature vehicle wheels
IPC: A63H17/267
Filed: 1945-09-11
Abstract: 596,284. Miniature vehicle wheels; medallions or badges. AIKMAN, A. R. Sept. 11, 1945, No. 23400. [Classes 73 and 132 (iii)] Miniature vehicle wheels, which also may be embodied in badges or medallions, have attached thereto, in a recess 4 in their outer face, a transparent disc 6 upon which a series of spokes is painted or otherwise reproduced, a second series of spokes being painted upon an opaque disc 7 housed behind the transparent disc so that the two series of spokes are visible from the outer side of the wheel. The discs are held in position by the abutment 9. In modifications, the second disc 7 is dispensed with and the second series of spokes painted upon the base 4a of the recess 4 or upon the back of the transparent disc. If desired, both discs 6 and 7 may be transparent in which case a third disc is used to give the background colour.
Patent GB-340472-A (GB)
Title: Improvements in air-cooling means for internal combustion engines
IPC: F02F1/06
Filed: 1929-07-30
Abstract: 340,472. Cylinders and crank chambers. REDRUP, C. B., 44, St. George's Road, Golders Green, London. July 30, 1929, No. 23407. [Class 7 (ii).] In an engine in which the cylinders g are parallel to the crank shaft e, the crank case is formed in two parts a, y with external grooves z in line with the spaces between the cylinders so that there may be a continuous flow of cooling air from one end of the engine to the other. Fins e are formed in the grooves of the case a and the engine may be surrounded by a stream-lined cover. A cover band the cylinders are secured by long bolts c, i. Specification 327,161, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to. The Provisional Specification describes expansion joints, between the cylinders and the crank case comprising dove-tailed connections, and between an induction pipe, integral with one of the cylinders, and an induction chamber surrounding the crank shaft.
Patent GB-1208688-A (GB)
Title: PRODUCTION OF beta-CAROTENE
IPC: C12P23/00
Filed: 1968-05-16
Abstract: 1,208,688. Carotene. CHAS. PFIZER & CO. Inc. 16 May, 1968 [12 Dec., 1967], No. 23436/68. Heading C2V. #-Carotene is obtained by cultivating a #- carotene producing strain of (+) Blakeslea trispora, ( - ) Blakeslea trispora or a mixture thereof in an aqueous nutrient medium in the presence of a soapstock obtained in the purification of naturally-occurring animal, fish or vegetable oil. Naturally-occurring animal, fish and vegetable oils also may be present. Examples are given.
Patent GB-946708-A (GB)
Title: Variable delay ultrasonic delay lines
Inventor: HAMMOND VIVIAN JOSEPH
IPC: H03H9/38
Filed: 1961-06-28
Abstract: 946,708. Electromechanical delay lines. A. C. COSSOR Ltd. June 28, 1962 [June 28, 1961], No. 23437/61. Heading H3U. A variable ultrasonic delay line of the type using multiple reflection within a faceted body of e.g. quartz, comprises also a second body which is slidable upon a facet of the first body and provides a variable portion of the wave path. As shown, the first body 10 has the general shape of a truncated wedge of small angle, the angle being such that a wave from input transducer 18 travels from the L.H. to the R.H. end of the wedge and then vice versa as it suffers multiple reflection between major facets 11, 12. From the L.H. end it is reflected by facet 15 towards the opposite end facet 13 upon which the second body 21 is slidable. The wave enters the second body and is reflected by facet 23 towards the L.H. end of the first body where it is received by transducer 24. The path length within body 21 depends upon its position; two different paths D, E for two alternative positions of the body 21 are indicated. The two bodies are pressed close to each other with a thin layer of a viscous medium between. The medium preferably has inverse-thixotropic properties. Poly-isobutylene may be used.
Patent GB-1144824-A (GB)
Title: Catalyst for a fuel cell electrode
IPC: H01M4/92
Filed: 1966-05-25
Abstract: 1,144,824. Fuel cell electrodes. AMERICAN CYANAMID CO. 25 May, 1966 [21 Jan., 1966], No. 23464/66. Heading H1B. [Also in Division B1] A fuel cell catalyst comprising 40-95% Rh, 5-20% amorphous tungsten oxide (in which the valency of tungsten is less than 6) 0-47À5% Pt and 0-10% MoO 3  is made by coprecipitating a mixture of an alkali metal borohydride, a rhodium salt and a metatungstate and optionally H 2 PtC1 6  and a molybdate in an aqueous medium. The catalyst may be contained with a binder-waterproofing agent and a mineral oil to form a paste and spread on to a support, e.g. stainless steel, Ta, or acrylic fibres. P.T.F.E. is a specified binderwaterproofing agent. Reference is made in examples to the use of novel anodes opposite conventional cathodes in a fuel cell operated with 1.0% Co and 99% H 2  + 100% O 2  at 70 C. using 5NH 2 SO, as electrolyte.
Patent GB-1326137-A (GB)
Title: Method of and apparatus for making an apparently unitary  composite facing brick column
IPC: B28B3/20
Filed: 1971-04-19
Abstract: 1326137 Extruding brick slabs P S KELSEY 19 April 1971 [10 March 1970] 23502/71 Heading B5A A plurality of clay or shale brick facing slabs e.g. of # inch to 1 inch thickness for incorporation as facing elements into a prefabricated building panel, are separated by tapping of a fired brick slab, of the required facing dimensions, at interfaces defined during the extrusion of the slab by slicing wires 19 extending transversely of a die passage and upstream of the outlet thereof, towards which outlet the passage tapers to exert a compressive reunifying effect at the interfaces, prior to cutting of the reunified column transversely of the extrusion direction and downstream of the die outlet into the required facing length of the slab. In the described embodiment, three wires 19 are provided, each extending at 24 through opposite walls 20 of the die passage for location at each of its ends to a tensioning bolt on the exterior of the die. Each bolt is secured by a nut between spaced lugs projecting outwardly from the die, and each end of a wire 19 engages through a diametrical hole through the bolt shaft intermediate the flanges, and is secured and tensioned by wrapping of the wire around the bolt shaft.
Patent GB-1268372-A (GB)
Title: Iprovements relating to flashing-lamp direction indicating systems for motor vehicles
Inventor: PERSON DAVID LOUIS HALSEY
IPC: B60Q1/38
Filed: 1968-05-17
Abstract: 1,268,372. Transistor oscillators. L. PERSON & SON Ltd., and FLEXIBLE LAMPS Ltd. 16 May, 1969 [17 May, 1968], No. 23581/68. Heading H3T. [Also in Division G4] A circuit for flashing vehicle direction indi. cator lamps 10 or 11 in dependence upon the position of a selector switch 14 connected between the lamps and D.C. supply 13, comprises a power transistor 20 in series with the lamps and cyclically switched on and off by a driver transistor 23. The base of transistor 23 is connected through a resistor 27 to a relaxation oscillator circuit comprising a unijunction transistor 30, resistors 31 ... 34 and a capacitor 35. A drive capacitor 40 in series with a resistor 41 are connected between the + ve line 36 and return line 24 in parallel with the relaxation oscillator circuit to ensure the continued energization of the oscillator circuit after the transistor 20 has been rendered conductive in each cycle. Initially, the transistor 20 is " off " and the voltage of supply 13 causes a current to flow from line 36 to line 24 through three parallel paths and to return to earth 12 through a diode 25. The first path includes capacitor 40 whereby this capacitor is charged, the second path includes capacitor 35 whereby this capacitor is charged, and the third path includes the ohmic junctions B1 B2 of unijunction transistor 30 and resistors 33, 34. The voltage drop across resistor 34 is insufficient to turn the transistor 23 " on ". As capacitor 35 charges, the potential at the + ve end of resistor 32 becomes sufficient to bias the emitter junction of transistor 30 forwardly so that current flows via resistor 31 in the emitter-base B1 circuit of the unijunction. The potential at the + ve end of resistor 34 now becomes sufficient to turn on the transistor 23 which in turn switches on the transistor 20 and the lamps 10 or 11 are illuminated. When transistor 20, conducts the voltage thereacross is so small that capacitor 40 discharges through the relaxation oscillator circuit and also through transistor 23, resistor 21 and the base-emitter junction of transistor 20. This discharge keeps the unijunction transistor 30 and driver transistor 23 conductive and keeps the base current flowing in transistor 20 whilst the capacitor 35 discharges until the valley point is reached where transistor 30 ceases to be conductive whereupon transistor 23 turns " off " and turns off transistor 20. Thus the indicator lamps are switched off and the cycle then repeats. A solenoid 45 in series with the indicator lamps 10, 11 operates a reed relay 43 to flash a monitor lamp 42 in unison with the indicator lamps. However, should a lamp 10 or 11 fail, the reduced current through the solenoid is insufficient to operate the relay.
Patent GB-264097-A (GB)
Title: Improvements in and connected with furnaces
IPC: F23J1/00
Filed: 1926-09-24
Abstract: 264,097. Babcock & Wilcox, Ltd., (Deutsche Babcock & Wilcox Dampfkesselwerke Akt.-Ges.). Sept. 24, 1926. Cooling; ashpits.- In a pulverulent fuel furnace an ash-cooling screen is formed by water-cooled tubes b arranged near the bottom of the furnace in the form of a double trough having valves e for the removal of ashes. The tubes b are provided with fins or ribs c.