baber/WOPTO huggingface dataset:
Patent GB-740956-A (GB)
Title: Electrical apparatus for generating non-linear functions
Inventor: CUTLER ALBERT ERNEST
IPC: G06G7/26
Filed: 1953-12-02
Abstract: 740,956. Resistance networks; electric analogue calculating systems. COMMUNICATIONS PATENTS, Ltd. Dec. 2, 1953, No. 33518/53. Class 37. Apparatus for producing a non-linear electrical output comprises two or more linear and multi-tap potential dividers with synchronized output-carrying members delivering outputs into a summation device. Each potential divider has a number of tappings to which are applied potentials corresponding to points on the curve which the electrical output is following. As shown, two multi-tap linear potentiometers 6, 7 with ganged wipers 11, 12 deliver outputs into a summation device 14. The potentiometers 6, 7 are divided into sections A<SP>1</SP>-B<SP>1</SP> ... and A<SP>11</SP>-B<SP>11</SP> ... with each section exhibiting at opposite ends as at A<SP>11</SP>, B<SP>1</SP>, &c., the required voltages corresponding respectively to ordinates of points A, B, &c. on curve A-G, Fig. 1. The tappings All, B<SP>1</SP>, &c. are fed from voltage supply 10 through correctly evaluated resistors 9 and the tappings A', B<SP>11</SP> are tied to earth so that wipers 11, 12 simultaneously give alternately descending/ascending outputs, i.e. (see Fig. 1) the voltage taken off 12 slopes from A to X1 (earth) and then ascends to C and the voltage drawn from 11 ascends (from earth) to B and then declines to X2; these voltages are continuously added in device 14 and the resultant is given by the chain-dotted line A-B-C-DE-F-G, which approximates closely to curve A-G. If primary function changes are made the curve A-G may be changed accordingly in contour by adjusting the value of one or more of the resistors 9 and thus also the value of the corresponding ordinate voltages. To obtain a closer approximation to curve A-G the potentiometer tapping voltages may be less or greater (according to whether the curve portion considered is convex or concave) than the corresponding ordinate voltages, e.g. for A-B if the voltages at A<SP>11</SP>, B<SP>1</SP> are less than A, B there is greater accuracy. The Specification explains that in the case of functions having a progressively increasing slope, such as y=x<SP>2</SP>, the accuracy of the output is improved by judicious selection of a resistance load across the output of the potentiometer. It is stated that instead of resistive potentiometers inductive or capacitive potentiometers might be adopted.
Patent GB-488650-A (GB)
Title: Improvements in and relating to colour photography and reproduction
IPC: G03C7/00
Filed: 1936-12-07
Abstract: 488,650. Colour photography. KREMER, P. Dec. 7, 1936, Nos. 33546, 33547, and 33548. Convention dates, Dec. 5, 1935, Jan. 21, 1936, and Nov. 11, 1936. Drawings to Specification. [Classes 97 (i) and 98 (ii)] A photographic method of obtaining coloured pictures by means of light-sensitive layers, preferably layers having a substantially identical transmission curve for at least one primary colour comprises the steps of making two or more partial pictures each of different opacities at corresponding points independently of each other from the object to be reproduced, for at least one of the primary colours, and composing a summation picture from the partial pictures according to the additive method by simultaneous transmission of light therethrough. In a modification, in the production of a negative and the resultant positive of at least one primary colour, light-sensitive layers are used having transmission curves which are, in a system of co-ordinates in which the energies incident on the light-sensitive material and the corresponding transmitting capacities are plotted along the axis of abscissµ and the axis of ordinates respectively in equal portions in a scale from 0 to 100 per cent, over at least the most usually employed parts of their range, a substantially true reflected image of each other relatively to a straight line drawn in the said system of co-ordinates through the origin at 45‹. The summating operation may be effected by projection of the partial pictures upon a screen or by copying on to a common lightsensitive layer. One partial picture may be under-exposed and the other over-exposed. A camera with a single main objective but giving two negatives may be used in taking the partial pictures, or a single negative may be taken and two differently exposed positives obtained by copying with different lights or using in copying screens of differing transparency. In another method a single negative is taken, under-exposed and over-exposed positives are made from this negative, underexposed and over-exposed summated negatives are made from these positives, and a single summated positive is made from these summated negatives. The process may be applied to only one or to all the primary colours. A projector for the three positives finally obtained for the three primary colours red, green and blue comprises three lamphouses provided with sources of light of suitable differing intensities, condensers, and colour filters. Compensation is made for a selectively reflecting screen by suitable choice of the light sources and colour filters. Apparatus, comprising light sources, condensers and projection lenses, and if necessary a prism, is described for projecting two partial pictures on to a light-sensitive layer. The process may be applied to silver halide or other emulsions, and may be applied to multi-colour screen material.
Patent GB-336458-A (GB)
Title: An improved method of starting diesel and like internal combustion engines
IPC: F01L13/00
Filed: 1929-11-05
Abstract: 336,458. Schimanek, E. Nov. 5, 1928, [Convention date,]. Starting.-In a method of starting Diesel and like engines, the supply of air to the cylinder during the suction strode is throttled, the compression ratio remaining unaltered, so that the quantity of air admitted is only slightly greater than that required to support the combustion of the quantity of fuel necessary for idle running. Acceleration is produced by the introduction of somewhat more fuel than is required for idle running, the speed of revolution being caused to rise gradually by reducing the throttling as the speed increases, until the throttling ceases at full speed. The reduction of throttling may be effected automatically by a centrifugal governor.
Patent GB-671931-A (GB)
Title: Improvements in centre rests for automatic lathes
IPC: B23B31/20
Filed: 1948-12-31
Abstract: 671,931. Lathe details. USINES TORNOS FABRIQUE DE MACHINES MOUTIER SOC. ANON. Dec. 31, 1948 [Jan. 20, 1948; April 12, 1948], Nos. 33678/48 and 33679/48. Class 83 (iii). A rotatable and adjustable centre rest for automatic lathes, particularly those having a traversed headstock, comprises a tubular portion, for supporting the stock, adapted to rotate in a single needle bearing having needle rollers which are longer than the diameter of the inner race of the needle bearing. The stocksupporting tubular portion 13 is slotted at one end and externally coned to engage with a complementary part of a sleeve 21, and is keyed at 20 to rotate therewith. Adjustment of an end-nut 17 closes the stock-support around the stock. Needle rollers 23 are arranged between the sleeve 21 and a sleeve member 32 carried by a support 25. The latter is externally tapered to be clamped by a sleeve 26 in a stationary part of the machine frame. The sleeve 21 has an extended end-portion to which is secured a split collar 28 having rods 31, Fig. 3, secured thereto which extend into a sleeve 30 secured to a rotating part of the lathe. The supporting part of the rest is thus rotated at the same speed as the work. The external race or sleeve 31 and support 25 are shown, in a modified centre rest, coned and relatively adjustable, to provide for taking up wear in the needle roller bearing.
Patent GB-1511193-A (GB)
Title: Method for producing shea fat
IPC: C11B3/00
Filed: 1976-08-13
Abstract: 1511193 Purifying shea fat FUJI OIL CO Ltd 13 Aug 1976 33767/76 Heading C5C Shea fat suitable for use as a hard butter is produced by treating a raw shea fat with ethanol, propanol, isopropanol or a mixture thereof, removing the insoluble portion, cooling the remaining solution to form two layers, the upper layer being oil-poor and the lower layer being oil-rich, and collecting the latter oil-rich layer. The lower layer may be further subjected to a solvent fractionation with n-hexane, acetone or methyl ethyl ketone. Most of the oil-poor upper layer may be recycled to the treatment of the raw shea fat. The purified shea fat may be used in a hard butter with up to 70 wt. per cent of an intermediate palm oil fraction.
Patent GB-1334412-A (GB)
Title: Amphibian vehicle
IPC: B60F3/00
Filed: 1971-07-20
Abstract: 1334412 Amphibious vehicles P PAPADOPOULOS 20 July 1971 [24 July 1970] 33879/71 Heading B7A An amphibious vehicle comprises a rectangular chassis 11 supported by two rows of rotatable spherical floats 17, and carrying a pair of air screw propulsion units 29, an air rudder 28 and sea rudder 30. Aerofoils (not shown) may be provided to assist in lifting the vehicle air speed with the floats riding over the water surface. The suspension arms 18, 19 act through a hydraulic shock absorber (25).
Patent GB-325507-A (GB)
Title: A device for removing water, air or other fluid from receptacles
IPC: B63B13/00
Filed: 1928-11-19
Abstract: 325,507. Muirhead, J. R., and Mills, J. W. Nov. 19, 1928. Worm pumps.-A resilient annular bulb pump 1, when. used for removing water from boats, may be combined with a screw &c. pump 8, 9 driven by a propellor 11 which rotates as it moves through the water. The propellorshaft 10 and the screw 9 are reciprocated axially by a cam 12 against which an arm 13 on the shaft is pressed by a spring 14.
Patent GB-864957-A (GB)
Title: Sound reproducing and transmitting devices
IPC: H04R1/30
Filed: 1958-10-23
Abstract: 864,957. Loud-speaker horns. HAWLEY PRODUCTS CO. Oct. 23, 1958 [Nov. 25, 1957], No. 33915/58. Class 13. [Also in Groups XXXII and XXXIX] A loud-speaker exponential horn is built into the body of a motor vehicle. The horn comprises two panels 17, 18 of pressed steel or of fibrous material deposited on a porous former. The panel 17 and another panel 21 may be integrally formed, the panel 21 being bolted at 24 to a fixed wall 23 of the car body. The panels 17, 21 form a chamber 22 in which a blower 27 is situated for blowing air through demisting slots. The panel 18 is extended to form a dashboard 6. A conventional moving coil loud-speaker unit 8 is attached to the horn. The loud-speaker unit 8 and the blower 27 may be mounted on the floor of the vehicle.
Patent GB-480982-A (GB)
Title: Improvements in or relating to ceramic mixtures
Filed: 1936-12-11
Abstract: Alkaline earth borates, e.g. of calcium, barium or strontium or of magnesium, are added to compositions comprising crystalline alumina, e.g. corundum to act as fluxes in the subsequent firing. Boron oxide and a salt of the corresponding alkaline earth may be used instead of the preformed borate.  Phosphates or silicates of alkaline earth metals and kaolin may also be incorporated.  A solution of gum may be used as temporary binder, but where a fluid mixture for casting is desired a weak solution of aluminium chloride or hydrochloric acid may be used.  After casting, the fluid mass is heated to below 100 DEG  C. to cause immediate solidification.  The final firing temperature is from 1300 to 1500 DEG  C.
Patent GB-748811-A (GB)
Title: Improvements in electrical test probes
IPC: G01R1/067
Filed: 1953-12-08
Abstract: 748,811. Hand contact-appliances. SAUNDERS, A. H. Sept. 2, 1954 [Dec. 8, 1953], No. 34137/53. Class 38 (1). An electrical test probe comprises a tube 1 in which is slidably mounted a rod or cable 2 carrying a pair of metallic jaws 6 which are normally drawn into the tube by a spring 19 acting between the tube and rod, the jaws tending to spring apart when projected from the tube by manually operated means comprising an enlargement fitted to the rod or cable 2 and secured to a cover 11 which is a close slidable fit over the end of the tube remote from the jaws. As shown the enlargement comprises a brass bush 14 moulded or otherwise secured to an ebonite cap 13, the bush having screw threads 15 for engagement with screw threads at the end of the rod or cable 2. A transverse hole 16 extends through the bush and across the screwed hole 15 to hold the bared end of a conductor 21. In a modification, Fig. 4 (not shown), the ebonite cover 11 has a reduced portion and an axial hole in the end thereof to receive a cable plug. In another modification, Fig. 5 (not shown), the tube comprises an inner metallic tube having an outer insulated cover; the interior of the cover slidable on the tube is entirely of metal surrounded by an insulating sleeve formed integrally with the insulating material of the attached cable.
Patent GB-283948-A (GB)
Title: Improvement in gas purification
IPC: C10K1/10
Filed: 1927-12-16
Abstract: 283,948. Koppers Co., (Assignees of Becker, J.). Jan. 22, 1927, [Convention date]. Purifier waste, revivefying. - Fouled alkali solution in a gas purification process, particularly adapted for gases from coke ovens employed in conjunction with steel plant, is regenerated by treatment with combustible gas, e.g. a portion of the purified gas, which may then be burnt under the coke ovens. Gas from a battery of ovens 1 passes through a cooler 13, tar extractor 14, ammonia and acid separators 17, 18 and a direct contact water cooler 20 in which its tem. perature is reduced to about 77‹ F. It is then washed with sprays of a 1-3 per cent solution of sodium carbonate in an absorber 22 in which the hydrogen sulphide content is reduced to about 100 grains per 100 cubic feet. That portion of the purified gas required for the ovens, e.g. 35- 40 per cent, is passed into a holder 27 and thence ino a regenerator vessel 33 preferably having means for agitating the fouled solution which is delivered to the regenerator through a heater 30, its temperature being raised therein by steam, waste gas, &c. to about 185‹ F. The regenerated solution, together with make-up alkali, is returned to the absorber 22 and impure gas, cooled to about 77‹ F. in a cooler 37, passes to a main 38 for combustion in flues 3 of the coke ovens. Specifications 169,996 and 170,572 are referred to.
Patent GB-851395-A (GB)
Title: Improvements relating to rapid-closing arrangements for pressure vessels
IPC: F16J13/06
Filed: 1958-10-24
Abstract: 851,395. Covers for resisting fluid pressure. THIES, A., THIES, A. jun., THIES, P., and THIES, B., [trading as THIES KOMMANDITGESELLSHAFT. SPEZIALMASCHINENFABRIK, B.]. Oct. 24, 1958 [Oct. 26, 1957], No. 34207/58. Class 123(1) A cylindrical pressure vessel 12 having a flatsurfaced rim flange 1 with a groove 13 for a resilient packing ring 3 has a lid 11 with a flange 2 provided with circumferential outer and inner chamfered surface portions 4, 5 and an intermediate flat surface portion 10. The two flanges are locked together when the vessel is closed by a channel section split ring 8 the halves 6, 7 of which are respectively welded to the flanges 2, 1 and are hinged together at 9. When the vessel is closed the cover is slid laterally across the open mouth of the vessel, the packing ring 3 being engaged and compressed by the chamfers 4, 5 on the leading and trailing edges of the flange 2 so that when the flanges 1, 2 enter the two halves of the locking ring the packing ring will engage the seating surface 10 in a compressed condition to effect the sealing of the closure.
Patent GB-334128-A (GB)
Title: Means for attaching detachable cuffs to shirts and other garments
IPC: A41B7/04
Filed: 1929-11-09
Abstract: 334,128. Wilkinson & Co., Ltd., M., and Wilkinson, M. Nov. 9, 1929 Shirt cuffs; shirts; blouses.-A detachable cuff C is secured to a sleeve A or sleeve wrist-band by means of a celluloid or like flexible strip B. The strip is threaded through slots c, a in the cuff and wristband, and its ends are received in pockets a<3>, which are shown on the wristband but may be on the cuff. The slots may be formed partly or entirely through the material of the cuff and/or wristband. In a modification, pieces of material are secured to the wristband to form the pockets.
Patent GB-343131-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F02B3/00
Filed: 1929-11-11
Abstract: 343,131. Twostroke engines. KNOCHENHAUER, W., 4, Harburgstrasse, Wernigerode, Germany. Nov. 11, 1929, No. 34351. [Class (ii).] In an internal-combustion engine in which the air is pre-compressed in a pump cylinder a coaxial with the power cylinder f, the pump cylinder is placed against the power chamber and the power piston g is connected to a crank d<1> advanced on the pump piston crank d<2> by 180‹ plus the angle over which the fuel is injected into the cylinder. In the form shown, the crank pins d<1> of the working cylinder are 225‹ ahead of the crank pins d<2> of the pump cylinder, so that the piston c is 45‹ from its upper dead centre when the working piston g is at its lower dead centre. Air drawn into the upper part of the cylinder f during the downstroke of the piston g is compressed during the upstroke through the conduit n into the pump cylinder a, and is further compressed during the upstroke of the pump piston c until the power piston a reaches its lower dead centre, when the compressed air is forced into the power chamber with the fuel (which is heated to ignition temperature) from the fuel nozzle o, until the piston c reaches its upper dead centre and the valve v is closed.
Patent GB-429842-A (GB)
Title: Improvements in radio beacons
IPC: G01S1/02
Filed: 1933-12-07
Abstract: 429,842. Wireless transmitting-apparatus. INTERNATIONAL MARINE RADIO CO., Ltd., and PERROUX, G. M., 63, Aldwych, London. Dec. 7, 1933, No. 34473. [Class 40 (v)] In the event of a breakdown of the motor-driven code-sender at a radiobeacon transmitter used for navigational purposes, an electric warning-horn H is automatically brought into operation. If the motor driving the code-sender contacts CSA fails to start up on the closure of the clock-controlled switch 3, a contact GA remains closed, and the horn H is energized to emit a continuous warning note. Alternatively if the aerial current fails, a rectifier valve AR ceases to hold open a relay RR, and the circuit of the horn H is again completed, this time through the contacts CSA, so that the warning audible signal conveys the code-call allotted to the beacon.
Patent GB-593126-A (GB)
Title: Improvements in or relating to friction fuel lighters
IPC: F23Q2/06
Filed: 1945-12-20
Abstract: 593,126. Frictional igniters. BEDFORD METAL CO., Ltd., and ELLIOTT, C. G. Dec. 20, 1945, No. 34491. [Class 75 (iii)] In a friction lighter, a reserve tank 2 communicates with a main tank 1 through an aperture 18, provided with a valve 25 which closes the aperture when the relative positions of the tanks is such that fuel would tend to flow from the reserve tank 2 to the main tank 1, but which allows it to be opened momentarily when the lighter is shaken. The valve 25 may be housed in a tubular member 22, which screws into, or is a push-fit into a hollow screw 20 engaging a bush 19 in the aperture 18. Slots 24 may be provided so that the member 22 is maintained in the screw 22 resiliently, these slots, together with holes in the member 22, if desired, also serving to place the two tanks 1, 2 in communication with one another. If the lighter is inverted, the valve 22 moves to close the aperture 23 in the hollow screw 20, but the valve is displaced to allow passage of fuel if the lighter is shaken. The valve may be a needle or ballvalve and may be urged by a spring situated between it and the base of the member 22. The main tank 1 may be provided with a filling aperture, and the reserve tank 2 may comprise two parts 3, 4, soldered, or otherwise permanently connected.
Patent GB-1109115-A (GB)
Title: Improvements in or relating to constructional materials
IPC: E04B1/84
Filed: 1963-08-31
Abstract: A sheet or panel comprises two metal layers having openings or perforations there through and spaced apart by transverse metal spacer elements, the outer surfaces of at least one of the metal layers being coated by a layer of thermosetting resin material. In a preferred embodiment, the metal spacer elements are provided by parts of a metal member lying parallel to and between the two metal layers e.g. a corrugated sheet.  The spacer elements may also be perforated. The specified coating material is an unsaturated polyester resin. The sheet or panel may be completely embedded in polyester resin.  A thermoplastic facing e.g. of a polyvinyl acetate emulsion optionally mixed with sand, cement or stone chippings may be applied to the face or panel.
Patent GB-875534-A (GB)
Title: Improvements in or relating to the treatment of coal distillation gases
IPC: C10K1/10
Filed: 1957-11-06
Abstract: 875,534. Purifying gases. BERGWERKSVERBAND G.m.b.H. Nov. 6, 1957 [Dec. 24, 1956], No. 34627/57. Class 55 (2). In a process in which coke oven gas is passed through a foul gas main 1, indirect coolers 3, 4, 5 and an ammonia washer 6, liquor being sprayed into the gas main 1 and circulated by a pump 10 between the main 1 and a tar separator 9, the condensate from coolers 3, 4, 5 is passed by pump 8 to the tar separator 9 and some at least of the excess liquor is sent through pump 11, tar pressure separator 12, pump 13, aerator 2, cooler 14 and pump 15 to the ammonia washer 6. The aerator 2 is supplied with air by pipes 7 and heated by passing the hot raw gas through heating walls of the aerator on its passage from the main 1 to the cooler 3. The ammonia content of the liquor is reduced in aerator 2 to between 0.001 and 0.002%. Some of the liquor from separator 12 is led by pump 16 and cooler 17 to the penultimate stage of the washer 6.
Patent GB-874847-A (GB)
Title: Improvements in and relating to the construction and erection of buildings
IPC: E04B1/348
Filed: 1957-11-06
Abstract: 874,847. Erecting buildings. LUDOWICI, J. W. Nov. 6, 1957, No. 34650/57. Class 20(1) A building is erected by forming a roof structure having living accommodation therein, and building the remaining storey or storeys beneath the roof structure which is raised by jacks as building proceeds. A roof structure 1 having dormer windows and being divided into rooms is first erected at the building site so that it may be used as living accommodation whilst the remaining part of the building is being erected. The roof structure'is supported firstly on girders whilst the foundations are being built and then on lifting jacks 22 whilst the walls 12 are being built so as to allow building to proceed underneath the structure. The roof structure may be prefabricated in a plurality of individual sections.