baber/WOPTO huggingface dataset:
Patent GB-1531121-A (GB)
Title: Thermochromic material containing an electron-donating colour former
IPC: C09K9/02
Filed: 1977-04-29
Abstract: 1531121 Indicating temperature FUJI PHOTO FILM CO Ltd 29 April 1977 [19 May 1976] 18119/77 Heading G1D A thermochromic material comprises a mixture of an oxybenzoic acid ester of general formula HO-Ar-COOR (where Ar is an aromatic nucleus and R is an organic group with 1-13 C atoms) and an electron-donating colour former which reacts with an electron-accepting acid to form a colour. Many examples of colour formers and esters are given. The colour reversion after a temperature has returned to its original value may take several days. The mixture may be rendered electrically conductive (to detect Joule heating) by the inclusion of metal powders or salts.
Patent GB-826849-A (GB)
Title: Anti-vibration mounting
Inventor: BROOKE THOMAS ANDREW
IPC: B64D45/00
Filed: 1955-06-23
Abstract: 826,849. Resilient mountings. DUNLOP RUBBER CO. Ltd. June 19, 1956 [June 23, 1955], No. 18137/55. Class 108(3) A resilient mounting for aircraft instruments &c. comprises two wedge-shaped channel members 1, 2, arranged transversely one of the other and the direction of their respective wedge formations being oppositely directed, and two wedgeshaped supports 6, 7, mounted one within each member 1, 2, by means of bonded blocks 8 of rubber, each support 6, 7 being secured respectively to the supported and supporting members (not shown) of the mounting. The oppositely directed channel members 1, 2, are in the form of a unitary, cruciform, floating member. The blocks 8 are supplemented by the action of a coiled spring 13 which is disposed at the centre of the mounting within gaps formed between each of these supports 6, 7. The support 7 is formed in two separate parts each mounted on a respective base plate 10, 10A, which are shaped to engage with a hexagon-shaped plate 12 forming the lower abutment of the spring 13. In a modification (Fig. 4, not shown), each limb of the channel member 1, 2, and the corresponding portions of the supports 6, 7, are tapered in the direction pointing towards the centre of the mounting.
Patent GB-745519-A (GB)
Title: Improvements in or relating to steering gear for vehicles
IPC: B62D5/24
Filed: 1952-07-17
Abstract: 745,519. Fluid-pressure servomotor-control systems; valves. MULTI-STEERING CO., Ltd., [formerly PERFECT STEERING CO., Ltd.], and FOSTER, W. G. July 17, 1953 [July 17, 1952], No. 18142/52. Class 135. A steering gear for a vehicle comprises two servomotors arranged respectively to operate the steering mechanisms for the front and rear wheels of the vehicle, two valves controlling said servomotors and themselves controlled respectively by rotatable movement and bodily swing- ing movement of a steering shaft and also by follow-up mechanism associated with the road wheels. When the steering column 10 is swung from side to side, it rotates a tubular casing 23 and, through worm gearing 26 and a crank 28, moves a rod 29 longitudinally to actuate a valve 55. This valve controls a servomotor 40 actuating one set of steerable wheels &c. 30 and the movement produced in the wheels is fed back to move the casing of valve 55 to recentre the valve. The feed-back link comprises a cylinder 32 integral with the casing of valve 55, the cylinder enclosing a piston 34 carried by rod 29 and being centred by springs 35. The pressure-fluid supply of the servomotor is obtained from one or more pumps 60, 61 which are fed from a tank 64 and are driven from the engine and the cardan shaft &c., and the supply passes through non-return valves 67 to an accumulator, the pressure being maintained by a relief valve 65. Should the pressure-fluid supply fail, a small amount of lost-motion permitted by the coils of springs 35 between rod 29 and cylinder 32 will be taken up and the wheels 30 will be actuated directly from the steering column. Springs 35 may be replaced by a compressible rubber pad or a pneumatic piston-and-cylinder mechanism. When the steering-wheel 11 is rotated it acts on another set of steerable wheels 21 through worm gearing 13, bell-cranks 14, 19, and a servomotor system 22 similar to that described above. Specification 580,422, [Group XXXI], is referred to.
Patent GB-394815-A (GB)
Title: Improvements in or relating to ultra-short wave radio and like receivers
IPC: H03D11/02
Filed: 1932-06-27
Abstract: 394,815. Valve circuits for wireless reception. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE and HERMANNSPANN, P., 12, Hallesches Ufer, Berlin. June 27, 1932, No. 18158. [Class 40 (v).] A super-regenerative circuit is employed in order to overcome smoothing difficulties which are encountered when feeding ordinary backcoupled ultra-short wave receivers from the mains. In the arrangement shown, the valve 4 is the detector and operates without polarizing anode voltage. The quenching frequency derived from the valve 8 is injected into the anode of valve 4 at 6, the valve 8 deriving its anode voltage from the rectifier system 11, 12. Pulsations in the anode supply to the valve 8 have no effect on the circuit of the detector 4.
Patent GB-760396-A (GB)
Title: Improvements in or relating to sharpening devices for cutlery or other edged implements
IPC: B24B3/54
Filed: 1953-07-01
Abstract: 760,396. Knife &c. sharpeners. CROSS, J. E. Sept. 30, 1954 [July 1, 1953], No. 18182/53. Class 60 A sharpening device for cutlery or other edged implements comprises one or more rotatably mounted sharpening elements to be engaged by the knife or implement to be sharpened, and means adapted, on relative movement between the knife or implement and the element or elements, to effect rotation of the latter, the means comprising a flexible operating member adapted to be moved with the knife or implement. A cylinder 1 of steel or abrasive material is fitted with end members 2, 3 rotatably mounted on a shaft 4 extending from a handle 5.. The end member 3 has a drum 6 on which is wound a flexible member 7 provided at its end with a grip 9 whereby it may be held in the hand holding the knife or implement. The handle 5 has a part 5b for guiding the flexible member 7. A return spring 8 is arranged within the cylinder. In place of a cylinder, a rod of steel or abrasive material may be used, and the return spring arranged within the drum 6. A modification, Fig. 2, has overlapping discs 13, 14 of cutting or abrading material; drums 15, 15 rotate with the discs, and a flexible member 16, such as a thin cable made of wire, thread, gut, rayon or twine, is doubled and the ends are attached to the drums and wound thereto in opposite directions. The doubled part of the flexible member 16 passes through a guide 17 and is provided with a ring 18 by which it may be held in the hand holding the knife or element. Return springs are arranged within the drums 15. Instead of the flexible member being adapted to be held in the same hand which holds the knife or implement, the member may have a clip or other means for detachably securing it to the knife or implement.
Patent GB-368633-A (GB)
Title: Improvements in head coverings more especially hats
IPC: A42C5/00
Filed: 1931-06-23
Abstract: 368,633. Hats. AKCIOVA SPOLECNOST TOVAREN NA FEZY, Strakonitz, Czeeho-Slovakia. June 23, 1931, No. 18210. Convention date, April 9. Drawings to Specification. [Class 63.] A hat of felted, knitted or other mesh fabric has the hatband or other decoration formed by parts of the fabric of threads of a colour different from the remainder. A sector may be knitted, the portion where in the finished hat the band is to appear having a different colour, the edges of the sector being sewn together to form a cone, which is then felted and finished as usual. In a modification, a separate band of contrasting colour is felted on to a blank.
Patent GB-744899-A (GB)
Title: Pit props and like struts
IPC: E21D15/44
Filed: 1952-07-18
Abstract: 744,899. Pit props. WATERHOUSE, W. Oct. 19, 1953 [July 18, 1952], No. 18271/52. Class 20(2). A telescopic pit prop comprises freely extendible members and a clamp carried by one of the members for frictional engagement with the other member to hold the prop against collapse, fluid pressure means being provided which applies increased pressure to the clamp in response to relative displacement between the prop members due to excess load. In the telescopic pit prop shown in Fig. 1 a moving support C of H-sectioned steel bar is locked to a fixed support A by pressure plates 10, 10<SP>1</SP> of a fluid pressure operated clamp contained in a box member 5 which bears upon fluid pressure bags 15 located upon the top of the fixed support A. The pressure plates 10, 10<SP>1</SP>, which engage opposite faces of the web 2 of the moving support C, are actuated by fluid pressure supplied by a pump P, Fig. 3, to extendible bags 11. The bags 11 are connected to the bags 15 by a oneway valve V<SP>1</SP> and the bags 15 are connected to the intake side of the pump P by a relief valve V<SP>2</SP>. The prop is extended by hand and then the pump P is operated to deliver fluid to the bags 11 and thereby impart clamping pressure to fluid to the pressure plates 10, 10<SP>1</SP>. When a predetermined pressure is reached in the extendible bags 11, valve V<SP>1</SP> opens to allow fluid to enter the bags 15. After the prop is set, an increase in roof load acts upon the bags 15 and forces fluid from these bags into the bags 11, thereby increasing the clamping action of the pressure plates 10, 10<SP>1</SP>. When a maximum clamping action is reached, upon the bags 15 becoming empty or upon the relief valve V<SP>2</SP> opening, the prop continues to yield under a constant load. The prop is released by operating by-pass valves X<SP>1</SP>, X<SP>2</SP>. The bags 11, 15 are of rubber or neoprene. In alternative constructions the prop members are of tubular form as in Fig. 8 and the extendible bags 33, 38 are annular. In Fig. 9 an annular extendible clamping bag 38 and an annular extendible bag 33 sensitive to the roof pressure, are connected by one way valves V<SP>4</SP>, V<SP>5</SP>. Fluid is supplied by the pump P<SP>1</SP> to the bag 38 and the valve V<SP>4</SP>, at a predetermined pressure, permits fluid to enter the bag 33 during operation of the pump Pl. Valve V<SP>5</SP> permits fluid to pass from the bag 33 to the clamping bag 38 when roof pressure increases. In the tubular prop of Fig. 8 the pressure plate of the clamping means consists of a helical band 43 enclosed by a band of spring metal. In other tubular props, Figs. 4 and 7 (not shown), the pressure plates are respectively annular, or in the form of arcuate segments enclosed by a band of spring metal and the gripping action may be increased by means of serrations in or protrusions on the tube. Conveniently hydraulic pistons may be used instead of extendible bags.
Patent GB-237893-A (GB)
Title: Improvements in surface condensers
IPC: F28D5/02
Filed: 1925-07-17
Abstract: 237,893. Krupp Akt.-Ges., F. July 31, 1924, [Convention date]. Surface condensers.-In a surface condenser, particularly for a locomotive, exhaust steam from a pipe C<3> is passed in parallel through two or more tube nests B, B<1>, over the outside of which cooling air and cooling water are passed in parallel. The tube nests are separated by a partition E connected to a vertical partition a<1>. Air is drawn through the condenser by a fan K and passes over the nest B through an opening a<2> in the partition a<1> and over the nest B<1> through an opening between the bottom of this partition and a cooling-water tank F. Water is raised from the tank F by a pump G and distributed over the tube nests by pipes g<5>, g<6>. Condensate is passed by a pump H to the locomotive boiler.
Patent GB-1281681-A (GB)
Title: Article handling device
Inventor: CLEMENTS RONALD BALDWIN
IPC: B65G47/82
Filed: 1968-04-18
Abstract: 1281681 Stacking articles such as bags; feeding U-shaped members; delivering sheets R B CLEMENTS 16 July 1969 [18 April 1968] 18363/68 Headings B8C B8R and B8S In a device for receiving, stacking and transferring articles such as polythene bags, the latter, provided with a pair of holes, are threaded, one at a time, over the upstanding arms 22 of a U-shaped member 20 which is temporarily held in a loading, position in a track 10 by a clamping member 42 and, after sufficient bags have been loaded, a carriage 30 is moved to engage the next U-shaped member at the end of a row of members 20 in a track 16, 18 and push it along the track 10 to engage the loaded member 20 and transfer the latter further along the track 10 as the clamping member 42 is released, the succeeding member 20 replacing the loaded member 20 and being clamped by the member 42 at the loading position. The members 20 in the track 16, 18 are spring-urged towards the track 10 and, after the leading member 20 has been transferred along the track by the carriage 30, the outlet from the track 16, 18 is blocked by a spring-loaded member 38, the carriage 30 again displacing the member 38 after returning from its transfer reciprocation to its initial position where the next leading member 20 is urged into the track 10 ready for subsequent transfer to the loading position. The carriage 30 is mounted upon slide bars 26, 28 is connected to the rod 34 of a double-acting air cylinder 36, and has an extension 32 which projects into the track 10 to engage a member 20 being transferred. A continuous conveyer belt, with means for engaging the lower portions of the members 20, may replace the carriage 30. The carriage 30, or the conveyer, may be intermittently movable in response to a signal received from a bag-counting device, not shown.
Patent GB-357147-A (GB)
Title: Improvements in or relating to silencing arrangements for internal combustion engines and other machinery
IPC: E04B1/82
Filed: 1930-06-16
Abstract: 357,147. Workshops, kinemas, and theatres. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., BULL, R. A., Bush House, Aldwych, and SIMPSON, G. A. G., 20, Milton Mansions, Queen's Club Gardens, West Kensington, both in London. June 16, 1930, No. 18388. [Classes 20 (i) and 20 (ii).] To silence noise from internal-combustion engines particularly in connection with portable public address systems, talking motion-picture systems, or soundrecording apparatus, the engine, together with its cooling system, its air intake system and its exhaust system and together with an electric generator driven thereby, is enclosed within a chamber consisting of or lined with sound attenuating material, such as rock wool, and provided with sinuous or baffled entrance and exit passages through which a draught may be produced to carry off excess heat and exhaust gases and supply air to the engine. A petrolelectric generator is shown at 10, a rotary transformer at 12 and a rotary converter at 13. The whole is enclosed in a cabinet 15 having the lining 16 secured by perforated metal or wire netting 17. The air inlet is at 18, and a fan 20 is located in the outlet. A door 23 with staggered joints is located opposite the engine starting handle. Specification 338,697, [Class 20 (i), Buildings and structures, Kinds &c. of], is referred to.
Patent GB-940462-A (GB)
Title: Wall hydrant
IPC: E03B9/14
Filed: 1961-05-19
Abstract: 940,462. Valves. J. S. NEWMAN. May 19, 1961, No. 18452/61. Heading F2V. [Also in Division F1. A wall-hydrant comprises a conduit 10 extending through a wall (not shown) and having at its inward junction end 14 a valve-chamber with a seating 25 which co-operates with a valve body 27 at the end of a rod 30 which passes through, and is rotatably screwed into, an exterior junction 21 and has exposed turning means 38 which give the rod linear movement. The valve body 17 has a flexible washer 28 and the valve chamber is longitudinally grooved around it (Fig. 3, not shown) to permit flow of liquid when the valve is open. A detachable cover 43, 45 is provided over the exterior junction 21.
Patent GB-1446613-A (GB)
Title: Automatic fire alarm equipments and systems
IPC: G08B25/00
Filed: 1973-04-18
Abstract: 1446613 Fire alarms LAB-CRAFT Ltd 3 June 1974 [18 April 1973] 18721/73 Headings G4H and G4N Automatic fire detecting equipment, on detecting fire or a fault, activates a normallypassive radio transmitter to transmit a coded signal identifying the location of the equipment and whether it is fire or fault. As disclosed, the equipment includes a smoke detector (a lamp and photo-resistor with a shadow plate between them, in a box open to the atmosphere), and a heat detector (a thermal fuse). If either detector is actuated, or if a broken-circuit (e.g. burnt-out filament) fault occurs to the lamp, a Schmitt trigger is set (latched) to switch off the lamp (until manual reset) and start a binary encoder of the shift register type to produce a 10-bit message consisting of 3 frame bits, 1 bit to specify whether fire or fault, and 6 bits to specify the location of the equipment. Any of a plurality of such equipments can send such a message (using a common frequency) by radio to a receiver station at which it is decoded to control a display via driving and latching circuits. The display has a matrix of lamps (one per fire detecting equipment) to indicate the location, lamps to indicate fire or fault, and a common audible alarm. As a modification, different groups of fire detecting equipments may signal using respective frequencies, the receiver station having separate decoding, driving, latching and display circuits for the different frequencies, separated by filters. Decoding and driving circuits may be used in common by use of electronic distributers before and after.
Patent GB-710614-A (GB)
Title: Improvements relating to thiadiazole sulfonamides and the preparation thereof
Filed: 1952-07-04
Abstract: Thiadiazole sulphonamides are prepared by reacting the corresponding thiadiazole disulphides with chlorine in an aqueous acid solution and subsequently reacting the sulphonyl chlorides thus obtained with ammonia.  The thiadiazole may be substituted in the nucleus, e.g. with an hydroxyl, amino or acylamino group. The temperature during the chlorination is preferably maintained at - 10 DEG  to 25 DEG  C. An example is given of the preparation of 2-acetylamino-1,3,4-thiadiazole-5-sulphonamide from bis-(2-acetylamino-1,3,4-thiadiazole-5,51)-disulphide.
Patent GB-666613-A (GB)
Title: An improved method of measuring the moisture content of solid materials
IPC: G01N27/22
Filed: 1949-07-18
Abstract: 666,613. Capacitance and moisture measurements. PHILLIPS, R. S., and BURNS, Ltd., J. May 18, 1950 [July 18, 1949], No. 18898/49. Drawings to Specification. Class 37. A method of determining the amount of moisture in solid materials for the purpose of improving or controlling processes of manufacture consists in drying the material, immersing the dried material between electrodes in a liquid having the same dielectric constant as the dried material and measuring the capacitance of the mixture, then immersing the material, but in an undried condition, in the liquid and again measuring the capacitance, the difference in the capacitance between the two measurements being a measure of the moisture present in the undried material. The description is substantially the same as in Specification 637,469.
Patent GB-462386-A (GB)
Title: The manufacture of condensation products of the anthraquinone series
IPC: C09B5/24
Filed: 1935-07-02
Abstract: Primary amines of ring systems capable of being vatted are reacted, in the presence of alkaline agents such as caustic alkalies with anthraquinone derivatives of the general formula <FORM:0462386/IV/1> where R represents a five- or six-membered heterocyclic ring. Anthraquinone derivatives specified are anthraquinone-2-(N)-1-thiazole, and 1.2-(N)-pyridinoanthraquinone. The products are dyes or intermediates for dyes or pharmaceutical products.  In examples, anthraquinone -1.2-(N)-thiazole is reacted in presence of powdered caustic potash and an organic solvent with (1) 1-aminoanthraquinone (yellowish orange shades on cotton); (2) 1-amino-5- (or 4-)benzoylaminoanthraquinone (orange or red-brown); (3) 1-amino-4-methoxyanthraquinone (bluish-red); (4) 2-amino-3-bromanthraquinone (greenish - yellow); (5) 1-chloro-2-aminoanthraquinone; the products of (4) and (5) are converted by boiling in nitrobenzene in presence of an acid binding agent such as sodium carbonate and copper to a fast yellow vat dyestuff.  Also in examples (6) the amino compound of the formula <FORM:0462386/IV/2> (prepared according to Specification 24604/08, [Class 2], from 1-(Bz1-benzanthronylamino)-5-aminoanthraquinone) is reacted with anthraquinone-1.2-(N)-thiazole (grey shades); (7) an anthraquinonedithiazole of the formula <FORM:0462386/IV/3> (obtained by acting with formic acid on 2.6-diamino - 1.5 - dimercaptoanthraquinone) is reacted with 1-aminoanthraquinone (reddish-orange); 1.2(N)-pyridinoanthraquinone or its py.2-(2<1>.6<1>-dichlorphenyl) derivative, is reacted with (8) 1-aminoanthraquinone (red shades), (9) 1 - amino - 4 - benzoylaminoanthraquinone (preferably using air as oxidizing agent); (10) 2-aminoanthraquinone (red); (11) 1(N).2- (or 1(N).2-5(N).6-di-)pyridinoanthraquinone and (12) a benzoylaminoanthraquinone 1.2(N)-thiazole (obtained by nitration, reduction and benzoylation from anthraquinone-1.2(N)-thiazole) are reacted with 1-aminoanthraquinone (red and red-orange).
Patent GB-1379734-A (GB)
Title: Cleansing and laundering composition
IPC: C11D3/00
Filed: 1971-12-04
Abstract: 1379734 Detergent composition containing citrate builder ELDIB ENG & RESEARCH Inc 4 June 1971 [27 April 1971] 18955/71 Heading C5D A detergent composition comprising (A) at least one organic surfactant and (B) a builder comprising a water-soluble alkali metal or ammonium salt of citric acid and (C) an alkalizing agent which is sodium carbonate, sodium bicarbonate, sodium sesquicarbonate or mixtures thereof wherein the weight ratio of (B) to (A) is in the range of 1 : 5 to 10 : 1 and the surfactant is (i) a zwitterionic surfactant, (ii) an ampholytic surfactant, (iii) a polyethylene oxide condensate of an alkyl phenol, (iv) a polyethylene oxide condensate of an aliphatic alcohol, (v) an alkali metal alkyl benzene sulphonate, (vi) a sodium or potassium salt of a sulphuric acid ester of the product formed by the reaction of one mole of a higher fatty alcohol with 1 to 6 moles of ethylene oxide or (vii) a sodium or potassium salt of an alkyl phenol ethylene oxide ether sulphate with 1 to 10 moles of ethylene oxide per molecule. When the component (C) is sodium carbonate, the wt. ratio of citrate to sodium carbonate is 12 to 1 to 1 to 15. Other builders such as sodium silicate and sodium polyphosphate may be present, together with conventional adjuvants. Preferred compositions are phosphate-free.
Patent GB-228453-A (GB)
Title: Improvements in heating stoves
IPC: F24B7/04
Filed: 1924-08-09
Abstract: 228,453. Coucke, F. J. Aug. 9, 1924. Air-heating stoves; gas and oil heating stoves. -A stove comprises an air-heating chamber b having a base. b<1> of inverted conical form and surrounded by a corrugated jacket a. The gases from a solid, liquid, or gaseous fuel heating- device arranged below the base b<1> pass up the annular space between the chamber and jacket and thence through a hollow top plate to a flue d' arranged in an upper compartment. Air passes into the chamber b by inclined tubes e and thence bv tubes f to the upper compartment from which it passes to the room. The lower part of the casing is provided with mica-covered openings c.