baber/WOPTO huggingface dataset:
Patent GB-1043387-A (GB)
Title: Improvements in hand-applied rotary impact tools driven by an electric motor
IPC: B25B21/02
Filed: 1963-09-13
Abstract: 1,043,387. Impact screwdriver. ROBERT BOSCH G.m.b.H. Sept. 13, 1963 [Sept. 15, 1962], No. 36102/63. Heading B3N. [Also in Division F2] A hand held electrically driven rotary impact screwdriver comprises a hammer 26 having claws 27, 28 which co-operate with claws 30, 31 on an anvil 29, and a shaft 21 rotatable from a motor 10 through gears 15-20 and carrying claws 23 for engagement with claws 49 on a shaft 32, the latter being connected to hammer 26 by balls 34a, 34b. Shaft 32 has two grooves 35a, 35b for the balls and carries a loosely mounted hub 42, slidable in the bore 45 of hammer 26. The latter is urged downwardly to engage the anvil by a spring 33, and the balls engage grooves 46a, 46b, in the bore 41 of the hammer. A spring 47 located in a blind bore 36 of shaft 32 engages shaft 21 to maintain disengagement of lugs 23, 49. In operation with a wrench placed on the end 48 of the anvil, pressure is applied to the tool, thus axially displacing the anvil, and shaft 32, against spring 47, and engaging claws 23, 49. When the resistance offered by the screw reaches a value which overcomes the spring 33, the hammer is retarded. It moves upwardly to compress spring 33, balls 34a, 34b roll from the ends 50 of grooves 35a, 35b towards ends 51, and are held along the axial wall of grooves 46a, 46b in the hammer, thus causing the hammer to disengage claws 30, 31 from claws 27, 28. As soon as the disengagement occurs spring 33 is relieved, causing the balls to move to ends 50 of the grooves and imparting a rotary acceleration to the hammer. The hammer moves axially to engage the anvil and imparts a tangential blow to the latter. Grooves 35a, 35b each extend over a circumferential angle of 200 degrees so that as the hammer recoils the balls are prevented from reaching the ends of the grooves and allow shaft 32 to take the hammer along with it.
Patent GB-841429-A (GB)
Title: Chemical lignocellulose pulping process and product
Inventor: MCKEE RALPH HARPER
IPC: D21C3/00
Filed: 1956-11-26
Abstract: <PICT:0841429/IV(a)/1> Pentosan-containing lignocellulose material is pulped by cooking with a 1 to less than 5% aqueous solution of a hydrotropic compound selected from benzoic acid, salicylic acid, xylenesulphonic acid, phenolsulphonic acid, toluenesulphonic acid, their alkali-metal salts and alkaline-earth metal salts and acidified solutions of these salts, until a substantial amount of the pentosans is removed.  The solutions are stated to dissolve pentosans, leaving lignin largely unaffected.  Cooking may be carried out at about 100 DEG C. until from 1/3 -\ba1/2 the pentosans have been removed, but the process may also be effected at increased pressures and higher temperatures.  Cooking times may be about 1 hour under increased pressure, or from 1-5 hours at atmospheric pressure.  When increased pressure is used, vapour may be condensed and returned to the reaction vessel.  Preferred conditions comprise the use of bagasse or wood as raw material and extraction with sodium xylenesulphonate solution for some hours at 95-100 DEG C.  Continuous operation may be employed, using the apparatus showing and adding dilute cooking solution continuously to make up for solution losses.  Raw material is fed from tank 10 into the reaction vessel 1, which contains heated cooking solution, and the treated pulp is conveyed, by the belt 5 and funnel 9 to a conventional refiner 16.  Refined pulp is pumped as a slush by pump 17 to screw press 19, where cooking liquor is separated and returned via pump 20 and pipes 21 to reaction vessel 1.  Pulp passed through pipe 22 is water-washed in washer 23, washings being pumped via pump 24 and pipes 25, 21 back to reaction vessel 1, and pulp passes through pipe 27 to be again refined in refiner 26. Refined pulp is stored in tank 29, and if necessary may be bleached in conventional apparatus 31, 33.  Pulp prepared by the process described is stated to have physical properties similar to sulphite or sulphate pulps but to have a high opacity similar to that of groundwood pulp and not to discolour on exposure to ultraviolet light.  Specification 560,492 is referred to.
Patent GB-866304-A (GB)
Title: Repair patches for rubber conveyor belts, motor vehicle tyres or the like
IPC: B29C73/00
Filed: 1957-11-20
Abstract: 866,304. Tyre repair patches. PAHL, H., and PAHL, H., [trading as PAHL'SCHE GUMMI UND ASBESTGESELLSCHAFT PAGUAG]. Nov. 20, 1957 [Nov. 28, 1956], No. 36177/57. Drawings to Specification. Class 144 (1). A patch for filling cavities in rubber tyres, conveyer belts, or the like is formed by treating a piece of unvulcanized rubber so that it is completely vulcanized on one side and the degree of vulcanization decreases through the thickness of the patch so that the other side is only lightly vulcanized. This can be accomplished by heating the patch on one side for a short time, by heating on one side and cooling on the other, or by heating on both sides but to different temperatures.
Patent GB-1426839-A (GB)
Title: Carburettors provided with a starting device having an eccentric
IPC: F02M1/10
Filed: 1973-07-31
Abstract: 1426839 Spray carburetters SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 31 July 1973 [31 July 1972] 36316/73 Heading F1B A carburetter comprises an eccentric starting valve 3, Fig. 1 in its air intake pipe which is actuated by air-flow against a first thermostatic member 5, Fig. 2 which tends to close the flap valve when the engine is cold, mechanical means 8 controlled by a second thermostatic member 9 sensitive to ambient temperature to open a driver operable throttle member 6 when the valve 3 is at least partially closed and a stop means which constitutes a positive abutment limiting the extent to which the pneumatic control means 28, 34 tends to open valve 3 in response to vacuum downstream of the closure position of valve 6. At cold starting (Fig. 1 position) abutment screw 10 engages step 8a to open valve 6 whilst the distance between screw 36 and step 8b is small so that when intake suction is applied to chamber 30 the stroke of stem 34 is small and end 20b, Fig. 2 drawn by edge 34a, Fig. 1 has only slight movement causing only slight opening of flap valve 3 with consequent mixture enrichment. At average ambient temperatures (e.g. 20C) thermostatic element 9 positions cam 8 to close valve 6 further and screw 36 is positioned to engage a step 8b which permits greater movement of stem 34 causing greater opening of valve 3 and lesser fuel enrichment. As soon as the engine rotates an electrical resistance 19 heats element 5 which rotates axle 16 and lever 22, Fig. 2 anti-clockwise until a spring end 26b, Fig. 1 engages a pin 25 to rotate cam 8 to the normal idling position in which valve 6 is more closed than in the starting position and simultaneously lever 22 fully opens the valve 3. In a modification the intake pressure pick-up point (31a), Fig. 4 (not shown) is positioned to be traversed by an edge of the valve 6 during its opening movement.
Patent GB-1438265-A (GB)
IPC: C07C51/00
Filed: 1974-08-20
Abstract: 1438265 Phenoxypropionic acid derivatives MERCK PATENT GmbH 20 Aug 1974 [21 Aug 1973] 36639/74 Heading C2C Novel compounds of Formula I in which Q is H, F, Cl, Br or I, R is H or CH 3 , Z is OH, OR<SP>1</SP> or -NHCH 2 CH 2 OH and R<SP>1</SP> is C 1-4  alkyl or 1-methyl-4-piperidyl, and their physiologically acceptable salts with acids or bases, are prepared by condensing a phenol of of Formula II or a salt thereof, with a compound of formula X-CR(CH 3 )CO-Z where X is Cl, Br, I or a free or esterified OH group, or condensing a phenol of Formula III with a compound of Formula IV or by treating a compound corresponding to Formula I in which the -CO-Z group is replaced by a group W, to convert the group W to a -CO-Z group. The resulting compounds I may be treated with a solvalysing, themolysing, ester-forming or amidizing agent to convert the Z radical into another Z radical. Pharmaceutical compositions having cholesterolemic, triglyceredemic and enzyme-induc- 'tive activity, for oral, parenteral, rectal or topical administration, comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-425755-A (GB)
Title: Improvements relating to air rifles, air pistols and similar weapons
IPC: F41B11/57
Filed: 1933-09-23
Abstract: 425,755. Air rifles and pistols. HILL, A. H., 68, Holliday Road, Handsworth, Birmingham. Sept. 23, 1933. No. 36939/34. Divided out of 425,555. [Class 119] An air rifle or pistol is provided with a retractible breech - bolt which is capable of a guided longitudinal movement along the axis of the barrel and of a partial rotation in a plane at right-angles to the said axis, the longitudinal sliding movement serving to position a pellet in the breech and to close and open the breech, and the partial rotation serving to lock and unlock the bolt when the said bolt is in its breech closing position. In one form, Fig. 1, a conical shoulder 28a on the bolt 28 is adapted to seat against a conical recess 9<a> at the breech end of the barrel 9. A hollow projection 28d at the front end of the bolt has a lateral inlet 28<c>, and is adapted to push a pellet 29 to the discharge position while allowing free passage of air from the port 30 through the bolt to the rear of the pellet. The bolt has a handle 28<e> and a lug 28b, which guides the bolt in a longitudinal slot in the upstanding part 10<b> during the longitudinal moment of the bolt and engages a cam face on the front of the part 10<b> to lock the bolt firmly in position during its partial rotation. In a modification, the bolt has a flattened front projection and is rotatably mounted in a collar provided with a pair of rods guided longitudinally on the body 10.
Patent GB-1119984-A (GB)
Title: Improvements in or relating to the testing of cell suspensions
IPC: G01N21/82
Filed: 1965-08-27
Abstract: 1,119,984. Photo-electric cell suspension testing. H. P. O. UNGER. Aug. 27, 1965 [Aug. 28, 19641, No. 36944/65. Heading G1A. An apparatus for testing a blood cell suspension in respect of for example antigens, antibodies and the osmotic fragility of red cells, comprises a flow metering device for the suspension, a flow metering device for a "reagent" (which is defined as any means bringing about a change of volume, shape, or colour of the cells or a flocculation, agglutination or dissolving of the cells) a reaction vessel for bringing the reagent and the suspension continuously together, and a photo-metric system for measuring the optical absorption of the reaction mixture which is of such sensitivity that it responds to individual cells or cell aggregates. In one arrangement for blood group determination metered supplies of anti-A serum and anti-B serum which pass through respective reaction coils to which the blood cell solution is commonly supplied and then through flow cuvettes in a photo-metric system which measures the light transmission through the two mixtures, a recorder indicates considerable fluctuations in respect of a mixture which has agglutinates. The cuvettes may be of a rectangular cross-section of small dimension in the direction of the incident light and the light beam is limited by a movable or fixed slot, slit, or rectangle. An arrangement for effecting antibody titrations, or for determining osmotic fragility comprising a single supply of reagent and a single reaction coil is also described and includes a microscope for examination of the reaction mixture. In operating the arrangement for the first named test, the anti-serum concentration is gradually increased until more and greater agglutinates are formed, and for the second the concentration of a salt solution is gradually reduced. A further embodiment includes an anti-serum preparation stage and details of reaction vessels for such a stage are illustrated. The stage may include cell washing arrangements. The flow of the liquids may be controlled by the pressures in respective gas holders, tube pinching devices, and valves.
Patent GB-776951-A (GB)
Title: Improvements in or relating to machines for distributing fertiliser or the like
Inventor: MURRAY JOHN BAIRD
IPC: A01C15/00
Filed: 1954-12-22
Abstract: 776,951. Fertilizer distributers. MASSEYHARRIS-FERGUSON (MANUFACTURING), Ltd. Dec. 22, 1955 [Dec. 22, 1954], No. 36993/54. Class 6(1). Means for mounting a revolving distributer pan 14 above a frame member 15 comprises an upright spindle 17 positioned in holes 16 in the member 15 and held by a spring clip 27 so that the spindle is forced upwardly to hold the pan 14 against the bottom of a hopper of the machine. As shown the spring clip engages the top of the spindle and is bowed around the frame member, the lower end of the clip being provided with a recess which is sprung over a U-shaped guide 33 fixed to the bottom of the spindle. When the clip is released the spindle may be lowered to allow the pan 14 to be removed, the spindle being retained in the member 15 by means of a projection on the spindle. The bottom of each pan is formed with a spherical-shaped recess into which projects the rounded top of the spindle thus allowing the pan to align itself against the bottom of the hopper. The machine may be connected to a tractor by means of a drawbar or the machine may be mounted on the power lift system of a tractor.
Patent GB-904645-A (GB)
Title: Device and method for making pipe fittings
IPC: B21D9/12
Filed: 1960-10-28
Abstract: 904,645. Bending tubes; flexible mandrels. ARBOGAST, A. C. Oct. 28, 1960 [Dec. 8, 1959], No. 37130/60. Class 83 (4). A method of bending a tube comprises the steps of inserting the tube into the feed end of an elongated passage having an intermediate curved tube-shaping portion, inserting a resilient filler into said tube, advancing the tube in said passage from said feed position to said curved tube-shaping portion, and simultaneously pressing against the leading end of said filler within said tube to expand it radially into tube-supporting relation as said tube is advanced. A tube blank 20 is introduced into a die 30 with its bevelled end 22 foremost. A resilient member 54, e.g. of rubber, secured on the end of a pusher 44 is inserted into the tube so that a shoulder 48 on the pusher 44 abuts the tube end. A reactance member 56 is inserted into the other end of the die 30 so that a spherical head 62, on a shank 64 pivoted at 66 to the member 56, engages the end of the resilient member 54. Hydraulic pressure is then applied to the pusher 44 and, to a lesser degree, to the reactance member 56 to cause the resilient member 54 to expand and grip the tube internally and the member 44 to push the tube through the bend 42, so bending the tube. The pusher 44 and member 56 are then withdrawn, the head 62 on the latter restoring to shape any parts of the leading edge of the tube curled during the bending operation. The die 30, which is in two halves, is then opened, and the bent tube withdrawn. The end portions of the bent tube may then be flared. The head 62 may be offset from the axis of its shank or may be formed integral with the reactance member. U.S.A. Specification 3,701,002 is referred to.
Patent GB-1112132-A (GB)
Title: Rotary cutter assembly for concrete grinder
IPC: B23D59/02
Filed: 1965-08-31
Abstract: 1,112,132. Abrasive tool. SUPER-CUT Inc. 31 Aug., 1965 [8 Sept., 1964], No. 37209/65. Heading B3D. A rotary cutter assembly, e.g. for grinding concrete paving, to level it or to produce skid-resisting grooves, comprises a tubular mandrel 18 of large diameter having welded to one end a member 22 having a tubular shaft 26 and welded to the other end a member 28 having a tubular shaft 30. Cutters 32 with abrasive peripheries 34 are mounted on the mandrel with spacers 42 therebetween. Bolts 38 carrying nuts 40 pass through a flange 24 on the member 22, through the cutters 32 and spacers 42 and through a member 36 mounted on the mandrel; there are as many sets of spacers as there are bolts. Water or other coolant is supplied through hose 60, swivel fitting 48, nipple 50 and tubular shaft 30 to the interior of the mandrel 18 and is delivered centrifugally through radial ports 20 in the mandrel to the spaces between the cutters. Coolant may be supplied to both ends of the mandrel by the use of a second swivel fitting.
Patent GB-1274030-A (GB)
Title: Catalysts
IPC: C07C17/37
Filed: 1969-07-24
Abstract: 1,274,030. Fluorination catalysts. MONTECATINI EDISON S.p.A. 24 July, 1969 [25 July, 1968], No. 37228/69. Heading BIE. [Also in Division C2] A catalyst for the fluorination of hydrocarbons comprises aluminium fluoride or fluorinated alumina containing compounds of iron and chromium, the iron and chromium being present in amounts of from 0.1 to 5% and 0.05 to 8.5% by weight, respectively, based on the total weight of catalyst. The catalyst may also contain a nickel compound, the nickel being present in an amount of up to 5%. The metals may be present in the catalyst in the form of halides, particularly fluorides, or oxides or oxy-halides and may be introduced into the aluminium fluoride or alumina in the form of chlorides or nitrates in solution after which the composition is activated by heating and fluorinated. The catalyst is stated as being useful for the gas-phase fluorination of halogenated ethanes using hydrogen fluoride, the gas-phase chlorofluorination of ethylene using chlorine and hydrogen fluoride, and the gasphase disproportionation of 1, 1, 2-trifluoro-1, 2, 2-trichloroethane (see Division C2).
Patent GB-849054-A (GB)
Title: High speed resistance thermometer
IPC: G01K7/18
Filed: 1958-11-19
Abstract: 849,054. Measuring temperatures. FOX. BORO CO. Nov. 19, 1958 [Dec. 6, 1951], No. 17266/58. Class 40 (1). A fast response resistance thermometer specially adapted for use at high pressures cons prises a dome shaped bulb cap, preferably of thin stainless steel, with a spiral bifilar resistance wire coil cemented, by an aluminium oxide base ceramic cement, in good heat conducting relation to the inner surface. As shown, Fig. III, a dome-shaped cap 15 is fitted on the end of plug 11, leads to resistance element 16 being taken through a subsidiary safety pressure seal 19 by ceramic insulators 18. In a modification, Fig. V, a stainless steel pressure resistant dome-shaped cap 26 is attached to a body 23 fitted, e.g. in a process pipe 21. The resistance element is attached to a second thinner high heat conductivity but non-pressure resistant bulb 28 attached to a removable plug 29 the leads to the element again being brought out through a safety pressure seal 30.
Patent GB-787054-A (GB)
Title: The oxidation of para-dialkylbenzenes to terephthalic acid and other oxidation products
IPC: C07C51/265
Filed: 1954-12-24
Abstract: Terephthalic acid and other oxidation products of p-dialkylbenzenes are prepared by oxidizing in the liquid phase a mixture of p-xylene and one or more p-dialkylbenzenes containing more than one carbon atom in at least one of the two alkyl side chains, at increased pressure and elevated temperature with oxygen or an oxygen-containing gas.  The process may be continuous. Terephthalic acid may be isolated from the mixture of products obtained which also contains p-toluic acid and hydroxy- and/or oxo-compounds such as p-methyl - acetophenone, p - acetylphenylmethyl carbinol, p-acetylbenzoic acid and p-diacetylbenzene.  Alternatively, the mixture may be subjected to further oxidation in known manner with nitric acid or sodium bichromate or with sodium hypochlorite in emulsion before isolation of terephthalic acid.  Specified p-dialkylbenzenes containing more than one carbon atom in a side-chain are p-diethylbenzene, p-di-isopropylbenzene, p-methyl-isopropylbenzene and p-ethyl-isopropylbenzene.  The oxidation may be conducted by passing oxygen or an oxygen-containing gas such as air through p-xylene containing 25-40 per cent or more by weight of p-dialkylbenzenes of the type mentioned above at temperatures above 140 DEG  C. and at pressures above 2 atmospheres.  Oxidation catalysts such as cobalt naphthenate, manganese ethyl caproate or lead stearate may be used. In examples: (1) a mixture of p-xylene and p-di-isopropylbenzene is oxidized in the presence of cobalt naphthenate and the reaction product further oxidized with nitric acid or sodium hypochlorite in emulsion to terephthalic acid; (2) a mixture of p-xylene p-methyl-isopropylbenzene, p-di-isopropylbenzene and cobalt naphthenate is continuously oxidized, the product being further oxidized with nitric acid, sodium bichromate or hypochlorite to yield terephthalic acid.
Patent GB-1433600-A (GB)
Title: Method and apparatus for trimming vegetables
IPC: B65G47/244
Filed: 1972-08-11
Abstract: 1433600 Cutting foodstuffs &c M R TAMKIN 3 Aug 1973 [11 Aug 1972 3 April 1973]  37474/72 and 15801/73 Heading A4C [Also in Division B8]  A device for sensing whether carrots are head first or tail first on a conveyer 14 leading to topping knives 33, 34, comprises two sensors 6, 7, each pivotally mounted on a member 5, itself pivotally mounted on the conveyer frame at 2. The sensors 6, 7, carry contacts 10, 11, which are normally closed, but both contacts are opened in the course of the carrot on the conveyer 14 passing under them. However when the carrot is head first, the contact 10 opens and closes before the contact 11 opens. When it is tail first, the contacts are both open at the same time. In operation, a headfirst carrot engages a lever 39 to operate contacts 38 which initiate operation of a ram 31. This sweeps the carrot on to the knife 33. The simultaneous opening of the contacts 10, 11, generates a signal which causes a delay in the operation of the ram 31 so that the tail first carrot is topped by the knife 34. In a modification, Fig. 8, the knives 33, 34 are replaced by knives 44, 44, on respective sides of the conveyer path. The lever 39 is replaced by a photo-electric gate 45, 46. In a modified control circuit, Fig. 11, (not shown), six inter-connected relays are used, and while the topping mechanism is similar to that of Fig. 5, the lever 39 is replaced by a photo-electric gate having a vertical beam (47), Fig. 12, (not shown). Conveyer systems. The carrots are supported on the edges of spaced rollers of the conveyer (14) Fig. 10, between which is a smaller roller 50. Rubber strips 52 at a position (40) Fig. 5, engage and rotate the rollers to match the speed of the carrot as it exits from opposed auxiliarly belts 26, 27. The latter are driven by gearing from the drive of the conveyer 14. They pass over rollers 26A and 27A on arms 28, 28 and over rollers 26B and 27B on arms 30, 30. The pairs of arms 28 and 30 are spring-loaded towards one another so as to cause the belts 26 and 27 to engage and accelerate the carrots as they pass along the roller conveyer 14.
Patent GB-510664-A (GB)
Title: Sandals for the therapeutic treatment of human feet
IPC: A43B3/10
Filed: 1938-12-23
Abstract: 510,664. Sandals. WIESSNER, K. Dec. 23, 1938, No. 37532. Convention date, Dec. 27, 1937. [Class 17 (ii)] A sandal for the therapeutic treatment of human feet comprises a sole, Fig. 1, of wood or similar elastic substance which slopes towards the edges with a slot 2, Fig. 3, beneath the heel extending to a line 4-5 allowing flexing of that part of the sole. There is a fabric or leather toe cap 6 and a three part strap 7a, b, c. The part 7c passes between the big toe and the next and acts as a stop. A recessed bed 8 is provided for the toes. A special recess 9 accommodates the big toe. The part of the beds 8, 9 adjoining the foot falls away steeply as indicated by the line 10, Fig. 3. The heel has a separate bed 12. The movement of the foot into their depressions result in tautening- the middle of the foot. This effect is increased if a recess 15 is provided for the ball of the foot Pieces of rubber or other soft material may be provided as beds for the toes and ball of the foot. The surface 17 of the sole may be roughened.