baber/WOPTO huggingface dataset:
Patent GB-1434369-A (GB)
Title: Vehicle brake operating motor cylinders and to brake assemblies
IPC: F16D65/56
Filed: 1972-06-19
Abstract: 1434369 Wear adjustment; spot-type disc brakes AUTOMOTIVE PRODUCTS Ltd 19 June 1973 [19 June 1972] 28530/72 Heading F2E The brake operating motor cylinder 13 of a spot type disc brake comprises a piston 14 co-operable with a thrust member of adjustable length and constituted by a stem 20 and a sleeve 25 in screw threaded interengagement: to adjust for wear during a fluid pressure brake application the stem 20 is rotatable on the sleeve 25 but should excessive pressure be applied an arrangement comprising a piston 32 and a peg 37 acts to prevent adjustment. As shown, the sleeve 25 and piston 14 have respective frusto-conical surfaces 26, 27 which form a core clutch and the sleeve 25 is urged towards the piston 14 by a spring 28. A screw thread 24 on stem 20 co-operates with a thread on sleeve 25 but there is a clearance between the threads to allow of relative axial movement without rotation-the screw thread 24 is preferably of square cross-section. The piston 32 is received in a bore through sleeve 31 and is biased by a spring 33. The piston 32 has an annular recess 35 and the peg 37 is received in recess 35 and also projects through a radial bore 36 in stem 20 to co-operate with the remainder of thread 24 on stem 20 to form a continuous thread. During normal brake actuation piston 14 will be moved rightwardly and as sleeve 25 follows this movement the clearance between the threads is first taken up and thereafter the sleeve 25 rotates on stem 20 to adjust for wear. In the event of excess pressure being supplied to motor cylinder 13 (e.g. during a panic stop) piston 32 is moved against the bias of spring 33 and coaction between a ramp surface 39 on peg 37 and recess 35 forces the peg 37 radially outwardly and locks sleeve 25 against rotation. The brake may be applied mechanically by rotation of stem 20 about its axis by means of an arm connected to a Bowden cable. The cylinder 13 is formed integrally with a slidable body 10 having a bridge member 12.
Patent GB-519218-A (GB)
Title: Improvements in or relating to reinforced concrete floors and like surfaces
IPC: E04B5/26
Filed: 1938-10-01
Abstract: 519,218. Concrete slabs. AIREY, Sir E. Oct. 1, 1938, No. 28576. [Class 87 (ii)] [Also in Group X] A method of constructing slabs and the like consists in casting the concrete over and around hollow reticulated bodies, which are provided inside with removable forms having flexible or depressible surfaces, so that the concrete may pass through the bodies and completely cover them. In one construction the removable form 2 comprises transverse members 4 and spaced longitudinal members 3, supporting a flexible envelope 5 of paper, hessian, etc. and disposed within the reticulated body 1, the removable form being supported by side battens 6. The envelope may be left adhering to the concrete when the form is removed or may be removed with it. The removable form may comprise a reticulated body supporting either straight longitudinal or arched transverse bars, the lower edges of the forms being spaced by struts. In a further modified construction, Fig. 4, a meshwork 17 is shaped to the reticulated body, but separated therefrom, and supported by transverse members 19 on battens 6 and 18 ; this removable form may be used either with or without an envelope.
Patent GB-690799-A (GB)
Title: Improvements in or relating to antenna systems
IPC: H01Q21/12
Filed: 1946-09-24
Abstract: 690,799. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 24, 1946 [Sept. 29, 1945], No. 28586/46. Class 40 (vii). An aerial system comprises a coaxial line, whereof the outer conductor has a series of gaps at intervals along its length, and a plurality of dipoles forming an array, one dipole being situated at each gap with one element thereof connected to the outer conductor on one side of the gap and the other element connected to the outer conductor on the other side of the gap. A third conductor parallel to the line is conductively connected to the outer conductor thereof at points a quarter-wavelength distant from each gap. By this means the dipoles are arranged in series with respect to the coaxial line feeding them, so that the matching of the array to the feeder is simplified when the impedances of the dipoles are small, as, for example, when they are mounted close to a conductive reflector. The outer conductor of the coaxial line 9 is broken at positions situated a quarter-wavelength away from the walls 3, 5, 7 of the tray-like reflector 1 which forms the third conductor mentioned above and to which the outer conductor is connected as shown. The dipole elements, shown connected to the outer conductor, are isolated electrically from earth. The inner conductor of the line is continuous and is terminated by a shorting plug 11 connecting it to the outer conductor. Since the current flowing at any point in the outer conductor is equal and opposite to that flowing at the same point in the inner conductor, it will be seen that the dipoles are excited with currents of the frequency of that applied to the feeder. Also since the dipoles are spaced a halfwavelength apart and are oppositely connected with respect to the line, they are excited in phase. It may also be shown that they are connected in series with respect to the line. The position of the plug 11 is arranged so that the reactance of the stub formed thereby is equal and opposite to the sum of the reactances of the dipoles so that the resultant impedance applied to the feeder is wholly resistive. The inner conductor within the section 19 may be of increased diameter, as shown, in order to reduce the characteristic impedance of the portion to match the second dipole. Fig. 4 shows a second embodiment comprising a coaxial line 9 with gaps cut in the outer conductor thereof, and a series of sheaths 47 connected as shown to the outer conductor of the line and forming the afore-mentioned third conductor. If it is desired to alter the spacing between the dipoles the quarter-wave sections and/or the coaxial line may be filled with suitable dielectric material. In the arrangements shown, successive dipoles are excited in phase with one another; if, however, all the gaps are cut in the same manner, it may be arranged that successive dipoles are excited in anti-phase.
Patent GB-904641-A (GB)
Title: Improvements in ammunitions
IPC: B25C1/16
Filed: 1960-08-18
Abstract: 904,641. Gas-checks. SOC. DE PROSPECTION ET D'INVENTIONS TECHNIQUES SPIT. Aug. 18, 1960 [Sept. 2, 1959], No. 28601/60. Class 9 (1). A cartridge carrier 2, preferably of synthetic plastic material, for sealing a cartridge 1 in the loading chamber of a gun, is of frusto-conical shape and has an aperture for inserting the cartridge and an expansion chamber 3 surrounding the cartridge case, the expansion chamber being open at its forward end 4.
Patent GB-286230-A (GB)
Abstract: 286,230. Allgemeine Elektricitõts- Ges. Feb. 28, 1927, [Convention date]. Cylinders, ports cf.- In a two-stroke engine having opposed pistoncontrolled inlet and exhaust ports e, f, the inlet ports are inclined towards the cylinder head and are slightly tangential as shown in Fig. 2. The belts of ports each extend over 180‹, but they may be at different levels and staggered 90‹ to one another.
Patent GB-841671-A (GB)
Title: Phosphonic acid esters
IPC: H01L21/00
Filed: 1958-09-05
Abstract: The invention comprises phosphonic acid esters of the formula p (R1O)(R2O)P(O)CH(OH)CCl3 wherein R1 and R2 are different radicals selected from alkyl, haloalkyl and cycloalkyl radicals, said alkyl and haloalkyl radicals containing 1 to 6 carbon atoms.  They may be obtained by condensing an appropriate asymmetrical O,O-di-organo-phosphite of the formula (R1O)(R2O)P.OH with chloral, e.g. by heating chloral to about 70 DEG  to 80 DEG  C. and then adding dropwise the stoichiometric amount of the di-organo-phosphite. Examples are given for the production of products of the above formula in which R1 is methyl and R2 is Cl.CH2CH2, CCl3CH2, (ClCH2)2CH n-C6H13, and cyclohexyl respectively and in which R1 is ethyl and R2 is n-C6H13 and cyclohexyl respectively.  The products are stated to be useful as insecticides (see Group VI).  The di-organo-phosphite starting materials may be obtained by reacting two appropriate different symmetrical di-organo-phosphites, e.g. (ClCH2CH2O)(CH3O)POH is obtained by heating b -b 1 - di - chlorodiethyl - phosphite and dimethyl-phosphite, and methyl cyclohexyl phosphite and b -trichloroethyl methyl phosphite are obtained by heating dimethyl phosphite with dicyclohexyl-phosphite and di-b -trichloroethyl phosphite respectively.  Specification 731,506 is referred to.ALSO:An insecticidal composition comprises a solid or liquid carrier or diluent and a phosphonic acid ester of the formula (R1O)(R2O)P(O) CH(OH)CCl3 wherein R1 and R2 are different radicals selected from alkyl, haloalkyl and cycloalkyl radicals, said alkyl and haloalkyl radicals containing 1 to 6 carbon atoms. Specified carriers are talc, chalk, bentonite, clay, water (if necessary with an emulsifier), alcohols, ketones and liquid hydrocarbons.  The phosphonic acid esters may be used in combination with each other or with known insecticides and/or fertilisers. Suitable compositions are obtained by mixing esters of the formula (CLCH2CH2O) (CH3O)P(O)CH(OH)CCl3 and (C6H11O) (CH3O)P(O)CH(OH)CCl3 respectively with acetone and then adding an emulsifier, e.g. benzyl hydroxy diphenyl polyglycol ether, and diluting with water. Specification 731,506 is referred to.
Patent GB-302769-A (GB)
Title: Improvements in or relating to electrical terminal plates for electric motors and the like
IPC: H01R29/00
Filed: 1927-10-28
Abstract: 302,769. Blakey, F. S., and Williamson, A. Oct. 28, 1927. Casings; motors, controlling; terminals, arrangement on machines.-A terminal plate for alternating-current motors consists of a number of terminal studs at such relative spacings that when they are joined by sets of links, each set having a specific length, the windings of the machine are grouped in definite ways, e.g. threephase star or mesh. The plate is covered by a rotatable cap which may be set to bring the entry duct at any required angle in the plane of the whole device. Figs. 1 and 2 show a form consisting of an insulating plate a recessed at the back to engage a rib b and boss c on the stator of the machine, and carrying eight terminal studs 1 - - 8 into the back of which the phase leads are brought. The cover f is secured by a nut on a central pin screwed into the stator and insulated by a sleeve h. The cable duct p may thus be brought in at any desired angle. The central terminals 1, 2, 3 are equidistant from each other and when connected by a single plate i give a three-phase star grouping as shown in Fig. 5, wherein the stator windings are represented at j. By means of links which connect the terminal pairs 1 - - 4, 2 - - 5 and 3 - - 6, a three-phase mesh grouping is given, as shown in Fig. 4. In these two groupings, the terminals 7 and 8 are not employed. Figs. 6 and 7 show respectively the link connections for a two-phase motor with the coils of each phase in parallel and series. The lengths of the four types of link are such that such link will only couple a selected pair of terminals, so that a motor provided with links approximately selected from these four lengths can only be connected in the manner in which it is intended to run.
Patent GB-177822-A (GB)
Title: Improvements in binding books
IPC: B42C5/02
Filed: 1920-10-11
Abstract: 177,822. Hoffen, H. A. M. van. Oct. 11, 1920. Bookbinding. - In bookbinding, the folded sheets are bound together by separate threads in the manner known as Dutch stitching, glue is applied to the back of the assembled sheets so that the projecting ends c of the stitching threads are glued to the back, and then gauze, strong paper, or the like e is glued or sewn on the back to provide a strengthening backing and also a means for suspension in stiff covers. The projecting ends c of the stitching threads are laid either transversely across or at an angle to the longitudinal direction of the back. The back may be rounded after applying the backing.
Patent GB-1518502-A (GB)
Title: Temperature control system
IPC: G05D23/20
Filed: 1974-06-28
Abstract: 1518502 Temperature control STEIN ATKINSON STORDY Ltd 18 June 1975 [28 June 1974] 28833/74 Heading G3R To control a heating means such as a furnace 10, a temperature measured at 18 is compared with a desired temperature in a controller 19A whose output is used to energize any or all of three heaters 13, 14, 15 whose heating capacities are such that the second is greater than the first and the third greater than the other two combined. Preferably their respective power outputs are in the ratio 1:2:4 so that seven equi-spaced discrete levels of power output are available. There may be more than three heaters; in particular a plurality of independent three-heater systems may be provided at separate locations within the same furnace. The controller preferably develops a PID function of the temperature error, derives from this an analogue signal for determining the heating power needed and employs an A/D converter to provide the heater-switching command signals. Suitable circuits (not shown) are disclosed.
Patent GB-1496875-A (GB)
Title: 5-substituted alkanoyl-8-hydroxycarbostyril derivatives and production thereof
IPC: C07D215/26
Filed: 1974-12-27
Abstract: 1496875 Carbostyril derivatives OTSUKA PHARMACEUTICAL CO Ltd 27 Dec 1974 13 June 1974 11 Nov 1974 (5) 4 Dec 1974] 28864/77 Divided out of 1496767 Heading C2C Novel compounds II (R<SP>1</SP> is 1-4 C alkyl; R<SP>2</SP> and R<SP>3</SP> are H, 1-4 C alkyl, 4-6 C cycloalkyl, or aryl-1-4 C alkyl or -NR<SP>2</SP>R<SP>3</SP> is a 5- or 6-membered, substituted or unsubstituted heterocyclic ring containing 1 or 2 N, O or S atoms as heteroatoms and R<SP>4</SP> is H or 1-4 C alkyl) and acid addition salts thereof are prepared by reaction of a compound IV (X is halo) with ammonia or an amine HNR<SP>2</SP>R<SP>3</SP> or by dealkylation of a compound II where R<SP>4</SP> is alkyl to give one where R<SP>4</SP> is H. Compounds IV are prepared by reaction of a compound VI with an α-haloalkanoyl halide.
Patent GB-711074-A (GB)
Title: Improvements in or relating to radial flow exhaust turbines for use with diesel engines
Inventor: BEALE EVELYN STEWART LANSDOWNE
IPC: F01D15/08
Filed: 1951-12-10
Abstract: 711,074. Gas turbines. MUNTZ & CO., Ltd., A. Dec. 3, 1952 [Dec. 10, 1951], No. 28904/51. Class 110(3) In a radial-flow exhaust gas turbine for use with diesel engines in which a rim 19 on the turbine rotor 16 carrying a ring of axially projecting turbine blades 18 extends through an annular slot in one side of the turbine casing 11 and in which small running clearances are left between sealing surfaces on the rim and casing, at least one of the running clearances is defined by a continuous annular edge 22 on said rim (or casing) and an opposed sealing surface 23 on said casing (or rim) and enlarged annular clearance Spaces are provided on either side of said annular edge for the reception of fouling residues removed by the interaction of the sealing surfaces. The turbine rotor has fan blades 17 and its rim 19 has grcoves 27; 30, ridges 22, 29 and a surface 26. One side of the annular slot for receiving the rim is defined. by a cylindrical surface 23, a frustoconical surface 25 and a cylindrical surface 24 whilst the other side thereof is defined by a cylindrical surface 28. In a modification the rim 19 and the associated part of the turbine casing are formed with axially projecting annular ridges, the flanks of which are defined by annular grooves. The rotor shaft 12 is spring loaded by a spring disposed between, a thrust bearing supported by a flange of the shaft and a sleeve supported against the outer race of a combined journal and thrust bearing. The outer race of the combined journal and thrust bearing is also located by a flanged ring bolted to the turbine casing whilst the inner race thereof is mounted on a reduced diameter portion of the shaft and so disposed between a stop washer and a sleeve. The stop washer abuts a shoulder of the shaft and the sleeve is pinned thereto. Dimensions are given.
Patent GB-698502-A (GB)
Title: Improvements relating to the testing of water for chlorine
IPC: G01N27/416
Filed: 1950-11-27
Abstract: In testing water for chlorine by adding a sample to benzidine or a benzidine derivative, the colour produced is stabilized by the presence of a polyphosphate (e.g. sodium hexametaphosphate), and/or an alkyl and/or aryl sulphate or sulphonate, or a combination of an alkyl and/or aryl sulphate or sulphonate with a pyrophosphate or an orthophosphate (e.g. a mixture of mono and dibasic orthophosphate). The chlorine present may be estimated colorimetrically or by titration with ferrous ammonium sulphate. Monochloramine will react with the indicator if an iodide is present, and dichloramine will react if the solution is acidified and subsequently neutralized; nitrogen trichloride is indicated as free chlorine, but may be determined separately by extraction and estimation of the remaining chlorine.  A buffer such as potassium acid phosphate and/or disodium phosphate may be included to maintain the pH between 6.5 and 7.5.  In an example benzidine hydrochloride is the indicator and a mixture of 10 parts sodium hexametaphosphate and 1 part sodium higher alkyl sulphate is used as the stabilizer.  Reference has been directed by the Comptroller to Specification 680,427.
Patent GB-712845-A (GB)
Title: Process for the production of polycondensation products containing silicon
IPC: C08G77/60
Filed: 1951-12-11
Abstract: Organo silicon polymers are obtained by reacting a silicic acid ester containing one, two or three methoxy and/or ethoxy groups, the remaining valency or valencies of the silicon atom being satisfied by alkoxy or aroxy radicals other than methoxy or ethoxy, with a polyhydric alcohol.  Esters specified are butoxymethoxysilanes, amyloxyethoxysilanes, and phenoxymethoxysilanes.  Alcohols specified are ethylene and triethylene glycols, butane and hexane diols, hexane triols, glycerol, mannitol and dextrose.  The products are generally soluble in water.  In an example 236 parts of dibutoxydimethoxysilane and 150 parts of triethylene glycol are boiled under reflux for an hour, distilling off methanol.  The product is a highly viscous liquid convertible to a resin by heating to 230 DEG C.
Patent GB-410509-A (GB)
Title: Improvements in and relating to sound-locating and acoustic distancefinding apparatus
IPC: G01S3/801
Filed: 1932-10-18
Abstract: 410,509. Locating and measuring sounds. BOUR, E. F., Forest Side, Mauritius. Oct. 18, 1932, No. 29073. Drawings to Specification. [Class 118 (ii).] In sound locating apparatus of the type in which four trumpets, arranged at right angles, are rotated alternately through 90‹, the trumpets are connected through amplifying apparatus and a switch to a single earphone or loud-speaker, or to individual loud-speakers, the switch allowing all the trumpets to be in use together or individual trumpets to be connected to the receiver. A rheostat is connected in series with the receiver and is adjusted, after the trumpet in use has been positioned to receive a sound with greatest volume, until the sound is least audible, the degree of adjustment indicating the distance of the observer from the source of the sound. The invention is described for determining the relative positions of and approximate distance between ships in foggy weather.
Patent GB-229013-A (GB)
Title: Improvements in spray type carburetters
IPC: F02M5/08
Filed: 1923-11-19
Abstract: 229,013. Arcy, J. d'. Nov. 19, 1923. Spray carburettors.-The fuel nozzle 21 has its orifice 27 disposed in the aperture of an iris diaphragm 28 situated at the base of a Venturi tube 30 having perforations 43 in its wall for the admission of secondary air which is controlled by a valve 51. The secondary air may be drawn through the upper part of a humidifying chamber 34 to which water is admitted bv a float controlled valve 47 from a passage 45 forming part of the cooling system. The fuel nozzle 21 is provided with a conical base 20 pressed to its seat 19 by a spring 23 carried by a cap 22 secured by bayonet joints. The fuel is supplied from a chamber 14, located at its base to a fuel inlet 10, and provided either with a float, or with a constant level device comprising a U-shaped air inlet pipe 17 and an air tube 15 connected to the top of a vacuum lift or gravity fuel tank, the highest point of the oblique lower end of the tube 15 being situated at the desired fuel level.
Patent GB-292675-A (GB)
Abstract: 292,675. Angst, E. March 22, 1927. Lock - stitching by shuttles.-The shuttle 9, has a hook on its periphery formed in a projecting rib 14 which runs on rollers 15 held in a casing 10 supported under the bed plate of the machine. The spool 21, which may be of aluminium and similar in size to the upper threadcarrying spool, is placed over a central pin 20 on the shuttle 9 and is held against axial movement by a spring 23 on the inside of the hinged cover 12 of the casing 10 and which bears against the cover 22 of the shuttle. The spool-carrier 9 is driven from a continuously-rotating shaft 7 by spring-pressed pins 31 which bear against a stationary cam 34, and are projected in turn by it into one of a pair of holes 36 in the shuttle 9. The pins 31 thus relieve one another in their ..driving action and permit the passage of the loop of upper thread. Rotation of the cover 22 is prevented by the engagement of a projecting arm on it in a recess in the casing 10.
Patent GB-1512698-A (GB)
Title: Axial flow variable pitch ventilating fan
IPC: F04D29/36
Filed: 1975-07-11
Abstract: 1512698 Axial-flow fans GEA LUFTKUHLERGESELLSCHAFT HAPPEL GmbH & CO KG 11 July 1975 [13 July 1974]  29339/75 Heading F1C An axial-flow fan impeller comprises a circular hub plate 16 which on one of its substantially flat surfaces carries housings 21 for the bearings of the pivot spindles of variable-pitch blades 10, a control plate 35 on the end of an axially movable control rod 41 being connected to crank arms 33 by adjustable linkages 34. Each linkage 34 comprises a lever 37 pivoted at one end to a fulcrum bracket 38 carried by a support ring 25 and connected at its other end via a pivotal link 39 and an adjustable screw connection to the control plate 35, a pivotal link 36 being connected between the middle of the lever 37 and the corresponding crank arm 33. The housings 21 carry welded-on mounts 22, 24 bolted to the hub plate 16 and the ring 25 respectively. A sheet metal plate 31 carrying adjustable balance weights 32 may be clamped between a flange 29 on each blade pivot spindle and a flange 30 on the corresponding blade root. Rotation of the control plate 35 is prevented by guide rods 43 carried by the hub plate 16 via a support 42 and passing through bearing bushes adjustably mounted at holes 45 in the control plate. The control rod 41 passes through the hollow drive-shaft 12 of the impeller and is axially movable by means of a servopiston 54, compressed air or hydraulic fluid being supplied to opposite sides of the piston via a pipe 53 and the bore 52 of the control rod, the air or fluid being supplied from non-rotating ducting via a rotary coupling 55. Feedback to the servocontrol valve 57 is provided by a lever 58. Shutoff valves 60 in flexible supply hoses 56 prevent alteration of blade pitch in the absence of a control signal. In a modification, Fig. 6 (not shown), the servopiston 54 is located at the other end of the control rod 41, the servo cylinder 51 then replacing the support 42. In another arrangement, Fig. 5 (not shown), the servo cylinder 51 is stationary and the servopiston 54 is carried by a non-rotating portion of the control rod 41 which is connected to the rotating main portion of the control rod by a coupling which transmits only axial movement.