baber/WOPTO huggingface dataset:
Patent GB-1341646-A (GB)
Title: Tetrakisazo dyestuffs
IPC: C09B33/26
Filed: 1972-08-04
Abstract: 1341646 Tetrakisazo dyes BAYER AG 4 Aug 1972 [5 Aug 1971] 36572/72 Heading C4P  New tetrakisazo dyes of formula wherein R 1  is a halogen atom or a NO 2 , CN, SO 3 H, COOH acyl or acylamino group, R 2  is a H or halogen atom or an alkyl, alkoxy or SO 3 H group, n 1  is 0, 1, 2 or 3, n 2  is 0 or 1 and n 3  is 1 or 2 are prepared by azo coupling. They are used to colour animal and vegetable fibrous material, in particular leather, in olive shades.
Patent GB-156170-A (GB)
Title: Improved manufacture of ammonium sulphate
IPC: C01C1/249
Filed: 1920-12-31
Abstract: 156,170. Koppers Co., (Assignees of Sperr, F. W.). May 10, 1918, [Convention date]. Ammonium sulphate crystals are neutralized by means of ammonia withdrawn from the " fixed " section of an ammonia still. The crude ammoniacal liquor entering the " free " still 4 by pipe 6 reaches the tank at the bottom containing milk of lime and passes through pipe 9 to the " fixed " still 2. Part of the ammonia liberated therein passes into still 4, but the remainder is used as described below for neutralizing the acid crystals of ammonium sulphate in the centrifugal drier 18. This ammonia is substantially pure, the sulphur compounds, cyanides and phenol having been fixed by the lime. The concentration of the ammonia leaving the "fixed" still is regulated by means of the condensers 11, 12, and the mixing tank 13 having the watersupply 14. The temperature of the ammonia is adjusted in the blowing-tank 16 which is fitted with steam-coils and a compressed-air pipe 17 for forcing the purified liquor into the drier 18 in the form of a spray. Preferably the liquor used contains from 1 to 3 gms. of ammonia per litre and is kept at a temperature of 80-90‹ C., but the spraying may also be performed in the cold. The Specification as open to inspection under Sect. 91 (3) (a) states that the quantity of ammonia passing into the " free " still from the " fixed " still may be regulated by means of a valve inserted in the pipe 3. This subjectmatter does not appear in the Specification as accepted.
Patent GB-368755-A (GB)
Title: Improvements in the contact arrangements of electric circuit making and breaking devices
IPC: H01H1/42
Filed: 1930-12-05
Abstract: 368,755. Switch contacts. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., Hamilton House, Victoria Embankment, London, and WILSON, A. E., 19, Oaklands Road, Bromley, Kent. Dec. 5, 1930, Nos. 36735/30 and 16580/31. [Class 38 (v)]. A contact blade is gripped between two members so that contact may be broken by relative sliding of the blade and the two members, and a U-shaped spring member, having arcing tips adapted to rub on the contact blade, is placed over the two members and held in an appropriate position. Two parallel bars 5 grip at their ends, contact blades 1, and U-shaped spring members 9, 14 placed around the bars 5 at their ends, are provided with arcing tips 12. The bars 5 have recessed sides, and the spring members 9 are shaped to fit in these recesses. A spring clamp 17 is provided for each of the members 9, and a bolt 10 fitted with a nut passes through the ends of each spring clamp and through the bars 5. The clamps 17 have projections 18 which may bear on the surface of the members 9, or may fit in apertures 19. Cylindrical spacing members 20 through which the bolts 10 pass, are provided between the ends of the clamps 12, the members 20 acting as stops when clamping, and as rollers when the blades 1 are engaged by the bars 5. A handle may be attached to one of the bars 5. The Provisional Specifications state that the contact blades 1 may also have arcing tips.
Patent GB-1138358-A (GB)
Title: Zeolitic materials
IPC: B01J20/18
Filed: 1966-08-17
Abstract: 1,138,358. Catalytic cracking. ESSO RESEARCH & ENG. CO. 17 Aug., 1966 [3 Sept., 1965], No. 36842/68. Heading C5E. [Also in Division B1] Hydrocarbons, for example heavy and light virgin gas oils, middle distillation, steam cracked naphthas, coker naphthas, catalytically cracked naphthas, cycle oils, desulphated residua may be converted using a catalyst comprising synthetic crystalline alumino silicate zeolite distributed throughout a silica or silicacontaining matrix and prepared by a process comprising mixing the synthesized zeolite in its mother liquor slurry with a siliceous sol and gelling the mixture (see Division B1). General cracking conditions are temperatures 700‹ to 1200‹ F., pressures sub-atmospheric to 100 p.s.i.g., catalyst to oil ratio 1 : 1 to 20 1 w/w; a fixed bed, moving bed, slurry or fluidized bed process may be used. In an example, a 500‹ to 700‹ F. virgin gas oil is cracked at 950‹ F. and atmospheric pressure using the hydrogenexchanged form and the magnesium-exchanged form of a catalyst comprising sodium faujasite suspended in a silica-alumina gel matrix.
Patent GB-839056-A (GB)
Title: Apparatus for assisting in the birth of domestic animals
IPC: A61D1/08
Filed: 1957-11-27
Abstract: 839,056. Veterinary appliances. GOODWIN, R. F. Jan. 29, 1959 [Nov. 27, 1957], No. 36931/57. Class 81 (2). Apparatus for assisting in the birth of calves comprises an elongated frame 1 having a forward part 3 for engaging an animal below the vagina, a rearwardly extending ramp 5 along which a rope 20 extends and manually operable mechanism for winding in the rope along the ramp in a rearward direction. The frame 1 is made of steel tubing and supports the ramp 5 which has a concave surface forming a calving bed. The forward part 3 which is adjustable, is padded and the rearward part of the frame has a foot 2 which rests on the ground. On turning a handle 13, ropes 20 extending along the ramp may be wound on a drum 8 which is supported by side plates 7 mounted on the frame. A releasable ratchet mechanism, including a toothed wheel 14 on the driven shaft and a catch 15, prevents rotation of the drum in a direction to unwind the rope.
Patent GB-1055219-A (GB)
Title: Process for the preparation of metaldehyde
IPC: C08G2/12
Filed: 1965-08-27
Abstract: Metaldehyde, together with paraldehyde, is made by polymerizing acid-free acetaldehyde which is diluted with a C4- 8 n-hydrocarbon at -40 DEG  to 15 DEG  C. in the presence of a catalyst comprising at least one metal bromide ionizable in the reaction medium and/or one carboxylic acid bromide ionizable in the reaction medium. Specified catalysts are anhydrous AlBr3, SiBr4, acetyl bromide, trichloroacetyl bromide and g -bromo-aceto-acetic acid bromide.  Pyridine may be used as a co-catalyst.  The preferred diluent is n-pentane.  Higher yields of metaldehyde are obtained if the acetaldehyde is free of iron and mercury.  The paraldehyde by-product may be separated from the metaldehyde and depolymerized by heating in the presence of the bromide catalyst to regenerate acetaldehyde. Examples are provided.
Patent GB-882497-A (GB)
Title: Improvements in or relating to gramophone pickups
Inventor: SPENCE ROBERT SYDNEY
IPC: G11B21/22
Filed: 1956-12-04
Abstract: 882,497. Supporting gramophone pick-ups. COSMOCORD Ltd. Dec. 4, 1957 [Dec. 4, 1956], No. 37009/56. Class 40 (2). A device for locking a pick-up arm in its outof-use position. The arm 1 (Fig. 1) has a projecting shaft 4, a part of which is semi-circular in cross-section (Fig. 3) and co-operates with an apertured side-rest 6. The dimension C of the shaft is such that it will enter the opening A in the rest but after rotation to the position shown in Fig. 2 the arm is locked to the rest. In the case of a multi-stylus head the shaft 4 is also attached to the cartridge and permits selection of the correct stylus.
Patent GB-964787-A (GB)
Title: Improvements in or relating to breathing equipment
IPC: B63C11/22
Filed: 1960-10-27
Abstract: 964,787. Respiratory appliances. R. GALEAZZI. Oct. 27, 1960 [Oct. 28, 1959], No. 37015/60. Heading A5T. Breathing equipment comprises a plurality of cylinders containing different gases at the same pressure, the capacity of each cylinder being related to that of the other cylinder(s) in a predetermined ratio corresponding to the volumetric ratio of each gas in a breathable mixture to be formed and the cylinders being connected through conventional valves to a common conduit in which the breathable mixture is formed and which leads to a two-stage gas pressure reducer, and a breathing unit connected to the low-pressure side of the two-stage reducer. As shown, Fig. 1, nitrogen and oxygen are discharged respectively from cylinders 1 and 101, 201 into a mixing conduit 2 connected to a two-stage pressure reducer 4. The first stage, in which pressure is reduced to 18-22 atmospheres, comprises a nozzle 11 discharging into a chamber 12 into which a bored piston 14 extends. The unperforated lower end of the piston is urged towards the nozzle 11 and acts as a throttle valve when the pressure of gas on the upper face of the piston exceeds that of a spring 18 and of water entering the piston chamber at 17. A hole 117 in a second stage similar to the first stage may be closed by a plug 217. When the gas supply in the cylinders is nearing exhaustion, the pressure of gas through a by-pass 21 is insufficient to hold a valve 303 in the dotted line position against the pressure exerted by a spring 400 and by reduced pressure gas flowing into the valve chamber from an outlet 307. This gas therefore flows through a tube 24 to a bubble nozzle 124 near the user's face. In an alternative valve construction omitting the tube 306, the gas entering the by-pass 21 itself passes into the tube 24 when its pressure drops below a predetermined value. Low pressure gas is fed through a cock 6 with a passage 21 and an under-passage (not shown) to a distributing chamber 7 and mouthpiece 8. The chamber 7 through hoses 9, 109 is in communication with casing 10 in which carbon dioxide is removed from exhaled gases. To prevent the user breathing only re-circulated gases an extension 127 of the gas cock plug 27 carries an arm (not shown) which when the cock is closed, closes the valve 125 through which the re-circulated gases enter the chamber 7. In an embodiment, Fig. 7, in which there is only one hose connection between the chamber 7 and the casing 10, the gas cock comprises a chamber 6 having a valve seat 620 with one or more ports 626. A valve member 614 on a stem 606 may be rotated to bring a port 617 into register with the port 626 and returned in that position by engagement of a pin 602 in a groove 604. To prevent the user breathing when the cock is closed the mouthpiece 8 opens into a sleeve valve (not shown), closed when the gas cock is closed, against spring pressure, by a projection 623 on the stem 606. Liquid collecting in the chamber 7 may be blown out through a valve 706. Specification 964,788 is referred to.
Patent GB-1350178-A (GB)
Title: Ring rail control apparatus for textile yarn processing machine
IPC: D01H9/04
Filed: 1972-08-08
Abstract: 1350178 Building motions SPRINGS MILLS INC 8 Aug 1972 [20 Aug 1971] 37025/72 Heading DID A builder motion on a ring frame comprises a manually actuable electric control 55 for a fluid operated ring rail. The ring rail is lowered below its normal position twice by manual operation of control 55 to (a) facilitate doffing and (b) take up slack in the yarn during start up.  As shown, the ring rail is normally reciprocated by chain 26 acting via counterbalanced crank arms 16 on lifter rods 21. When it is required to position the ring rail at a lower position, button 55 is depressed to operate fluid pressure motor and pump to supply fluid to the piston and cylinder 30, 31. The piston 31 is attached to the machine frame and the cylinder causes the crank arms 16 to move the rail to its low position.
Patent GB-1519644-A (GB)
Title: Apparatus for circulating and gasifying a liquid
IPC: B01F3/04
Filed: 1976-10-19
Abstract: 1519644 Mixing apparatus ENGINEERING TECHNICAL SERVICES Ltd 19 Oct 1976 [9 Sept 1975] 37089/75 Heading B1C An apparatus for circulating and gasifying a body of liquid 10 comprises a tortuous passage extending longitudinally through an open ended tube 13 and a gas bubble generator 15 disposed at the lower end of the tube, the passage being defined by the tube wall and a number of flat vanes 16a and 16b. The vanes may be provided at the lower portion only of the tube (Fig. 4 not shown). The vanes 16a and 16b may form dihedral angles of 30 and 45 respectively. Each tube comprises a central column 14 to which the vanes are secured and in which holes 15 of the bubble generator are disposed. Non- return valves may be provided in the openings. In a modification (Figs. 3 and 5 not shown), the vanes are secured to a sleeve (14a) releasably secured to the central column by a bayonet connection. Gas is passed downwardly through the central column and passes through openings 15 in both the central column and the sleeve. Nine tubes (13A-131) (Fig. 6, not shown) may be provided. The apparatus may be made of polythene, polypropylene, unplasticised P.V.C., stainless steel or mild steel and may be used for aeration of sewage and fresh water where there is no natural flow circulation.
Patent GB-429164-A (GB)
Title: Improvements relating to actions for typewriting machines
IPC: B41J7/92
Filed: 1934-12-27
Abstract: 429,164. Typewriters. ROYAL TYPE. WRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Myers, L. C. ; 20, Wilson Place, Freeport, New York, U.S.A.) Dec. 27, 1934, No. 37091. Convention date, April 28. [Class 100 (iv)] Keys.-In touch-regulating means comprising an adjustable, pivoted, anchor-plate for the action-returning springs, an indicator, separate from the anchor-plate adjusting- device, is connected or secured to the anchor-plate. In the arrangement shown in the Figure, the returning-springs 15 for the key-levers 9 and type-levers 8 are connected to a pivoted anchor-plate 16 abutting on a non-rotatable screw 18 which engages a threaded sleeve 24 provided with an adjusting-knob 25. A touch-indicating pointer 33, pivoted on a rod 34, has pin-and-fork connection 36, 37 to the anchor-plate, and is visible through a slot 32 provided with a scale 38. The scale is applied to the rear face of a glass plate 28 having an opaque backing in which the slot is formed, the plate being secured in a frame having clips for engaging the walls of an opening in the side 5 of the framework. A metal plate may be used instead of the glass plate. The pointer may be secured to the anchor-plate, and the screw-device 18 may be replaced by a screw mounted in the anchorplate and abutting on the back 7 of the framework.
Patent GB-1355869-A (GB)
Title: Device for purification of sewage
IPC: C02F3/12
Filed: 1971-08-06
Abstract: 1355869 Sewage treatment STENBERGFLYGT AB 6 Aug 1971 [28 Aug 1970] 37121/71 Addition to 1320759 Heading C1C The biological purification apparatus claimed in Specification 1,320,759 and which comprises an aerating and settling tank and an aerating device and control means associated therewith so that three stages of operation are carried out per day, viz. a first stage in which sewage is received and aerated in the tank, a second stage in which the aeration is stopped and settling occurs and a third stage in which a pump is operated to remove clarified liquid from the tank, is modified or improved in that the aerating device is supported by a float so that the distance of the aerating device below the float is substantially equal to the distance between the inlet of-the pump and the bottom of the tank. The shown apparatus comprises a tank 1 provided with an inlet 2 and an outlet 3 and divided into three intercommunicating compartments by partitions 4, 5, an aerator 15, 16, 17 in each compartment, each aerator being supported by a float 18, 19 (only two shown) and being connected to fan 23 by a flexible tube 25, 26, 27 and a pump 12 for pumping treated water from the tank.
Patent GB-371413-A (GB)
Abstract: 371,413. Electric battery lamps. LANGBEIN, C., Cursdorf, Thuringer Wald, Germany. Jan. 22, 1931, No. 2183. Convention date, Jan. 23, 1930. [Class 39 (ii).] A battery lamp adapted for use as a bicycle headlight contains two batteries which can be connected either in series or parallel by means of a switch to vary the illuminating power. As shown in Figs. 1 and 2, the lamp casing a is of cylindrical form, with, a removable front part b fitted with a lens and reflector in which the lamp bulb d is secured in known manner. The inner wall of the casing is lined with a strip e<1> of insulating material, such as glazed cardboard carrying a second cardboard strip e<2> on which are attached metal strips arranged to contact with the resilient contact strips g<1>, g<2> of the batteries 1, 2. The inner strip e<2> terminates between a plate i<1> of vulcanized fibre and a cardboard plate i2, these elements being fitted with contact plates to co-operate with contact strips at the ends of a vulcanized fibre strip l secured at right-angles to the axis of a rotary switchspindle s operated by a lever k which is swung to the right or left to put the batteries either in parallel or in series. An insulating plate m at the front portion of the casing carries a contact plate n and a contact spring o which abut respectively against the centre contact of the lamp bulb and the reflector, a socket or the like being provided on the plate m to receive a spare bulb q.
Patent GB-1526136-A (GB)
Title: Method and apparatus for the measurement of volumetric flowrate in pipes and ducts
IPC: G01F1/36
Filed: 1976-09-08
Abstract: 1526136 Flowmeters BAYER AG 8 Sept 1976 [10 Sept 1975] 37181/76 Heading G1N The rate of flow F of fluid through a pipe 1 is determined by measuring the upstream pressure pi and the pressure p 2  at a restriction 2, and calculated from the Formula: F=A(p 1 -p 2 )+B(p 1 -p 2 )<SP>n</SP>+C(p 1 -p 2 )<SP>n</SP>p 1 +D where A, B, C, D and n are constants determined for each pipe and restriction. A differential pressure transducer 9 produces a signal corresponding to (p 1 -p 2 ). The pressure p 1  is fed through a limiting device 10 which restricts the maximum value to that corresponding to a completely filled pipe, and converted to an electrical signal in transducer 8. The signals are combined in accordance with the Formula in a computer 11 and indicated as flow-rate at 12.
Patent GB-1085787-A (GB)
Title: Improvements in and relating to stabilization
IPC: C07C409/00
Filed: 1964-09-11
Abstract: Diperisophthalic acid, stabilized by the addition of an alkali metal or alkaline earth metal salt of an acid having a dissociation constant at 25 DEG  C. of at least 1 x 10-3 for its first hydrogen atom, may be used in detergent compositions by adding to the stabilized composition alkyl or aralkyl sulphates and sulphonates, e.g. sodium dodecyl sulphate and alkali metal silicates. Specified stabilizing salts are sodium, potassium, lithium, calcium, magnesium and ammonium sulphates or bisulphates; sodium, magnesium and calcium nitrates and the corresponding pyro and polyphosphates.ALSO:Diperisophthalic acid is stabilized by adding thereto an alkali metal or alkaline earth metal salt of an acid having a dissociation constant at 25 DEG  C. for its first hydrogen of at least 1 x 10-3, the salts added being inert to di-perisophthalic acid.  Preferably the dissociation constant is at least 1 x 10-2 and specified salts added are sodium, potassium, lithium, calcium, magnesium and ammonium sulphates or bisulphates; sodium, magnesium and calcium nitrates and the corresponding pyro or polyphosphates. The compositions have a pH not exceeding 8 and preferably contain at least one-third by weight of the stabilizing salt.ALSO:Compositions, useful as bleaching agents, comprise diperisophthalic acid stabilised by an alkali metal or alkaline earth metal salt of an acid having a dissociation constant at 25 DEG C for its first hydrogen if at least 1x10-3.  Specified salts added are sodium, potassium lithium, calcium magnesium and ammonium sulphates or bisulphates; sodium, magnesium and calcium nitrates and the corresponding pyro and polyphosphates.  The compositions may also contain alkyl and aralkyl sulphates and sulphonates and alkali metal silicates.
Patent GB-786630-A (GB)
Title: Improvements in pumps
IPC: F04B43/08
Filed: 1955-12-29
Abstract: 786,630. Reciprocating pumps. GENERAL MOTORS CORPORATION. Dec. 29, 1955 [Dec. 30, 1954], No. 37197/55. Class 102(1). A pump, particularly a fuel injection pump, comprises a body 22 having a bore 32 forming an end wall 36, a plunger 38 reciprocable in the bore 32 by engagement with a cam 18 and a plug 58 of resilient material between the plunger 38 and the end wall 36, and a pump chamber 60, formed between the plug and the end wall, which communicates with an inlet 42 and an outlet 44. The plug 58 may be cylindrical while the bore 32 may taper slightly as at 59. The chamber may be formed by a recess in the end wall. Modifications are described in which plugs having variously shaped internal chambers are used. The bore 32 may be formed in a member screwed into the body 22, the member being tapered to locate a conical plug. The bore and end wall may be formed in a resilient member located in the body 22.
Patent GB-821264-A (GB)
Title: Improvements in or relating to overhead electrification systems for railways
Inventor: SWEETLAND ARTHUR GEORGE
IPC: B60M1/20
Filed: 1956-12-05
Abstract: 821,264. Supporting conductors; insulators. BRITISH INSULATED CALLENDER'S CABLES Ltd., and BRITISH TRANSPORT COMMISSION. Dec. 4, 1957 [Dec. 5, 1956], No. 37227/56. Class 36. A cantilever structure for a railway overhead electrification system comprises an inclined strut 2, a tie member 1 and a registration arm, the latter being in two parts 3 and 16. The strut, tie, and at least the inner part 3 of the registration arm are of resin-bonded glass fibre in the form of a rod or tube and are provided at their inner ends 4, 10 and 14 with means for attachment to a supporting structure 6, the strut being provided at its outer end with means 8 for attachment to the outer end of the tie-rod and to a catenary, whilst the inner registration arm has means 17 and 18 for attaching the outer registration arm which has at its free end means 19 for attaching a contact wire. The means for attaching the various members preferably consist of clamps arranged to pivot either horizontally, vertically or both to enable adjustments in the height and position of the catenary and contact wires, relative to the track, to be effected. The clamps may be formed to receive the ends of the rods or tubes which may be secured by compression, clamping or adhesives; alternatively, when tubes are used, the clamps may be adapted to be either inserted or moulded into the ends thereof. Suitable resins and methods of forming the structural members are described.
Patent GB-1472954-A (GB)
Title: Heat and abrasion resistant sintered alloy
IPC: C22C38/10
Filed: 1974-08-23
Abstract: 1472954 Sintered iron alloy NIPPON PISTON RING CO Ltd 23 Aug 1974 37255/74 Heading C7A  A high heat resistant and abrasion resistant sintered alloy, suitable for machine parts contains The lubricity and density of the compact, which is moulded under 4À5 ton/cm<SP>2</SP> pressure and sintered at 1120-1170‹C for 30-60 minutes in cracked ammonia, may be enhanced by impregnation with 0À05-5À0 h Pb.
Patent GB-789521-A (GB)
Title: Improvements in flexible tubing
IPC: F16L11/16
Filed: 1955-12-30
Abstract: 789,521. Hose pipes: pipe joints. SCHAUENBURG, H. G. Dec. 30, 1955 [Dec. 30, 1954], No. 37376/65. Classes 99(1) and 99(2). A hose is formed of a helically wound strip, or of adjacent rings 9, of rubber or synthetic plastic material such as polyvinyl chloride, the strip or each ring having at one edge of its outer surface an integrally formed male beading 11 extending continuously and without interruption throughout the length of said edge, and at the other edge of the outer surface an integrally formed, correspondingly-shaped female beading 10 also extending continuously and without interruption, adjoining convolutions of the strip or adjoining rings being joined together by engagement of the beadings. The contacting surfaces may be stuck or welded together. Heat may be applied to soften the material and permit engagement of the beadings, and the material of the hose may be sufficiently flexible to allow the hose to collapse longitudinally.