baber/WOPTO huggingface dataset:
Patent GB-636317-A (GB)
Title: Improvements in and relating to phase-shifting transformer connections
IPC: H02M5/12
Filed: 1945-12-04
Abstract: 636,317. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 4, 1945, No. 32763. Convention date, Dec. 4, 1944. [Class 38 (ii)] Either the primary or secondary winding (or both) of a polyphase phase-shifting transformer comprises zig-zag mesh connected winding sections with a number of tappings which is a multiple of the phase number, the tapping points being so selected that the voltage magnitude with reference to a common neutral point is the same for all the tappings. In Fig. 1, the complete mesh-connected winding 41 is made up of a group of windings 2-3 ... 13, a second group 15-16 ... 26 and a third group 28-29 ... 39. Each group is on a separate transformer or separate limb of a threelimbed transformer and magnetically linked with one of the phases of a tapped 3-phase starconnected winding. The mid-points of windings 2, 3, 8, 9, 15, 16 ... &c. are tapped; the other windings are so chosen and connected to tapping points, as shown, that the potentials of all the tapping points can be represented by points equally spaced around the circumference of a circle. Conventional tap-changing mechanism connects the 3-phase leads 47-48-49 to three equally-spaced tapping points, so that the phase angle of the output can be turned through steps of 15 degrees without change of voltage. Similar tap-changing mechanism on the starconnected winding affords voltage variation. Either the 3-phase star-connected winding, or preferably the mesh winding is the primary of the transformer. Certain of the windings can be omitted if the range of adjustment be limited, e.g. to 60 degrees, three groups of windings each with five tappings being provided. In Fig. 4 (not shown) a modified winding is also tapped to afford only this limited range, there being three tapped mesh windings-connected together at two points-giving different voltages and with three tapping contacts movable angularly for phase shifting and radially for voltage variation. Similar adjustments are obtained by angular and radial movement of contacts 87-88-89 in Fig. 5, but the mesh winding is replaced by the 3-phase starconnected windings 97-98-99, each having taps from which branch pairs of windings linked with other phases. Three-phase leads 92-93- 94 are permanently connected to equidistant points at the intermediate voltage.
Patent GB-1428345-A (GB)
Title: Mushroom cultivation
IPC: A01G1/04
Filed: 1974-07-24
Abstract: 1428345 Mushroom cultivation BEKAERT SA NV 24 July 1974 32769/74 Heading A1E Equipment for mushroom cultivation comprises beds, each having a metal wire floor 9 in the form of either a wire mesh or a set of parallel wires, these beds being supported by a framework of girders 2, 3. The lateral elements 3 and metal wire floor 9 are covered with disposable sheet material 6 and 11, the sheet 11, covering the floor, being perforated to allow ventilation of the compost layer 12.  U.S.A. Specification 2271472 and Specification 1276481 are referred to
Patent GB-321554-A (GB)
Title: An improved method or process for jointing aluminium by solder
IPC: B23K35/36
Filed: 1928-11-10
Abstract: 321,554. Jackson, H. Nov. 10, 1928. Soldering.-Aluminium parts are soldered by first cleaning them as by filing, then coating them and also the solder with an air excluding and non- oxidizable material consisting of petroleum jelly, which volatilizes at the melting temperature of the solder, and then heating the parts to melt the solder. A suitable solder is one consisting of 4 parts by weight of tin, 1 part of zinc, 1 part of aluminium and 2 parts of lead. This alloy melts at about 230‹ U. to 240‹ C. Specifications 15943/07 and 270,453 are referred to.
Patent GB-1426340-A (GB)
Title: Method of and apparatus for precision cold-forming rolling elements
IPC: F16C33/36
Filed: 1973-07-10
Abstract: 1426340 Forging GLAENZER SPICER 10 July 1973 [10 July 1972] 32910/73 Heading B3H A rolling element for a homokinetic coupling or bearing is made by cold forming a cylindrical blank in a die by forcing the blank into the die while an increasing counterpressure pressure is exerted on the blank. In one embodiment the blank 28, Fig. 3, is annular and formed by a die 6 and plunger 11 in a recess 8 in the die corresponding to the required curvature of the rolling surface (2), Fig. .1 (not shown), of the element. The counterpressure .is applied by a spring- urged ejector 18 which is moved into the die bore 7 by the blank as it is advanced by the blank as it is advanced by the plunger 11. The blank is lubricated with graphite. Plane surfaces 9, 12 on the die and plunger respectively limit the penetration of the plunger projection 13 into the die A mandrel 24 is provided with burnishing rings 26 to polish the bore 29 of the element. In an alternative embodiment a solid cylindrical blank 67, Fig. 6, is cold formed in a die 44 by a plunger 49 whilst a counterpressure is applied by a spring-urged ejector 57. The plunger 49 has passages 54 for the escape of lubricant. The spring may be replaced by an hydraulic, pneumatic or mechanical -elastic device. After cold-forming the rolling element is hardened by quenching and polished in a drum.
Patent GB-1534790-A (GB)
Title: V-type internal combustion engine
IPC: F02B3/06
Filed: 1976-08-06
Abstract: 1534790 Intake ducts ISUZU MOTORS Ltd 6 Aug 1976 [8 Aug 1975 2 Sept 1975] 32920/76 Heading F1B The intake duct 7 of a V engine comprises a metal body 11 and a bottom portion 8 of a flat metal sheet, said sheet co-operating with walls 3 and 4 though sealing elements 12 to define a sound proof chamber enclosing the fuel injection pump 5 and tappet chambers 33. Alternatively the chamber may enclose only the pump and the fuel pipes 15 be led through seals 17 to injectors 16. The inlet duct 7 has branches 10 welded to plates 13.
Patent GB-1236472-A (GB)
Title: Dust precipitator
Inventor: TRUMP JOHN GEORGE
IPC: H02G5/06
Filed: 1968-07-10
Abstract: 1,236,472. Electrostatic separators. HIGH VOLTAGE ENG. CORP. 10 July, 1968 [13 July, 1967], No. 32945/68. Heading B2J. [Also in Divisions H1 and H2] A high voltage gas insulated system comprising two electrodes 4, 5 between which a high voltage exists is provided on one of the electrodes 5 with a surface 6 which opens into a recess constituting a region of low electric field whereby charged moving particles tend to move into and are trapped in the recess. As shown the electrode 4 comprises an electrostatic belt type generator. The invention may be applied to a compressed gas transmission electric power line and where the central conductor is hollow the region of low electric field is provided in the hollow conductor by providing perforations in the top of the central conductor.
Patent GB-436111-A (GB)
Title: A method of, and apparatus for, manufacturing cranks for pedal cycles and the like
IPC: B21K1/76
Filed: 1934-11-16
Abstract: 436,111. Making cranks. REGIBEAU, L., 100, Rue St.-Gilles, Liege, Belgium. Nov. 16, 1934, No. 32983. Convention date, Nov. 18, 1933. [Classes 83 (ii) and 83 (iv)] Forging-dies.-Pedal cranks for bicycles are cut from a bar 1, Fig. 1, so as to form rough blanks 2, 3 corresponding to left and right-hand cranks respectively, and subsequently the right-hand blanks are forged in dies to the form shown in Fig. 2. The part 4, indicated by shading, is scrapped. In Fig. 6 is shown the press for forging a right-hand crank from the rough blank 3 shown in Fig. 2. A spacing plate 10 when in the position shown maintains a die surface 22 on the press head 12 out of contact with the crank boss 5, so that operation of the press forges the shank 9 of the crank. By removing the plate 10 the die surface 22 forces the boss of the blank into arcuate recesses 26, 27 in the die 6 and into an arcuate recess 18 in a die plate 11. An ejector 7 with pins 8 is raised to release the blank and die plate 11 from the press. To enable the spacing plate and the die plate to be handled, they are both provided with frames which, in the case of the spacing plate 10, is shown in Fig. 8 and consists of an enveloping frame 24 attached by bolts 21 to the plate. To maintain the plates 10, 11 in accurate position recesses and pins are employed.
Patent GB-354128-A (GB)
Title: Improvements in or relating to devices for rectifying threephase alternating currents
IPC: H02M7/06
Filed: 1930-11-04
Abstract: 354,128. Rectifying alternating currents; transformers. MœLLER AKT.-GES., C. H. F., 93, Hammerbrookstrasse, Hamburg, Germany. Nov. 4, 1930, No. 33192. Convention date, Nov. 4, 1929. [Class 38 (ii).] In an arrange ment for rectify ing three-phase current, a two way switch 9 is associated with the secondary side of a supply transformer 7 in such manner that in one position it establishes star connection between the phase windings whilst in the other position it connects the winding 5 to that end of the winding 4 which is remote from its point of connection to the winding 3. Thus the voltage available at the output terminals 17, 18 which in the first position of the switch varies from 1À5 times to #3 times the maximum value of the supply voltage, may be changed to one that varies from zero to twice the maximum value of the supply voltage by changing the switch position. The switch may be structurallv combined with the transformer.
Patent GB-908915-A (GB)
Title: Apparatus for operating upon and recording articles
Inventor: DELWICKE LOUIS ROBERT
IPC: D06F93/00
Filed: 1960-09-22
Abstract: 908,915. Applying identification tabs to laundry articles. AUTO-PRICERS Ltd. Aug. 2, 1961 [Sept. 22, 1960], No. 32561/60. Class 73. Relates to apparatus comprising a marking machine for applying an identifying code marking printed upon a tab to laundry articles and a recording device for recording a description and/or price of each article. According to the invention the recording device includes a number of electrical circuits, one or more of which are arranged to be energized when switches S 1 , S 2  ... Sy are actuated, before an article is marked by the machine, and a locking relay R which is actuated when any one of the electrical circuits is energized, means being provided for preventing the application of the marking until such time as the locking relay R has been actuated. Thus the description and/or price of an article must be recorded before the marking machine can operate. Each switch S 1 , S 2  &c., when actuated, energizes one of a number of solenoids L 1 , L 2  through an electrical path including the normally closed contacts R-b of the locking relay R which itself is energized through the normally closed contacts P-b of a cam P. Energization of locking relay R causes contacts R-b to open to de-energize the associated solenoid L and locking relay R is held operated through the closed holding contacts R-a of the relay. The marking machine consists of a normally continuously running motor M which drives, via clutch C, an output shaft 1 on which are located the cam P and a marking mechanism (not shown) which upon one revolution of the shaft 1 prints a code marking upon a tab and applies the tab to the laundry article. As cam P is rotated, a lobe 2 engages an arm 3 and causes contacts P-a to open. Contacts P-a are in series with the main supply to the motor M and in parallel with the normally open contacts R-c of the locking relay R so that if relay R is operated when clutch C is engaged, then contacts P-a will be shunted by the closed contacts R-c, and the opening of contacts P-a by the cam lobe 2 will have no effect on the supply to the motor M which will continue to rotate cam P and the marking mechanism, the lobe 2 engaging cam follower 4 to open contacts P-b and cause release of the relay R for operation in the next cycle. If, however, the operator has forgotten to actuate a switch S to record the article being marked, then locking relay R will be unoperated and as contacts P-a are open, the main supply to the motor M is cut off and the application of the marking will be halted until such time as the appropriate switch S is actuated. Instead of a motor M and clutch C, the marking machine may be operated by one or more solenoids or may be purely manually operated.
Patent GB-361577-A (GB)
Title: Improved device for humane slaughtering of animals
IPC: A22B3/02
Filed: 1930-11-05
Abstract: 361,577. Slaughtering for food. GABBITASS, G, B., Glencairn, Bawtry Road, Doncaster. Nov. 5, 1930, No. 33222. [Class 28 (ii).] A slaughtering-appliance comprises a punch E, having a striking head N, a withdrawing spring F and a cutting edge R, slidable in a casting H carrying spring clips D which are pressed inwardly by leaf springs C. When the clips D are pulled apart, prior to placing the appliance on the animal's head, the parts B which are pivoted to the casting H and secured to the clips D, are engaged by notches J in pivoted bell-crank members A pivoted at K and pressed into engagement by springs G. When the appliance is placed on the animal's head, the members A are pressed in thereby and release the clips D which spring in and grip the head. In a modification intended for animals with small heads, the levers A are arranged with their free ends pointing inwards, and the notches J are formed in the members B.
Patent GB-848667-A (GB)
Title: Improvements relating to electrical circuit arrangements
Inventor: MYNALL DENNIS JAMES
IPC: H03H11/42
Filed: 1955-11-21
Abstract: 848,667. Valve amplifying circuits exhibiting gyratory properties. BRITISH THOMSONHOUSTON CO. Ltd. Dec. 4, 1956 [Nov. 21, 1955], No. 33282/55. Class 40(6). A circuit exhibiting gyratory properties (i.e. one in which the transfer admittance relating the current flowing between a first pair of terminals and the potential difference developed between a second pair of terminals is equal in magnitude to but opposite in sign to the transfer admittance relating the current flowing between the second pair of terminals and the potential difference developed between the first pair of terminals) comprises two identical amplifier circuits, as shown in Fig. 2, which are so connected externally that their gains are equal in magnitude but of opposite sign, the input of one amplifier being connected to the output of the other while the output of the first amplifier is connected to the input of the other, as is shown in Fig. 3. Where the circuit is required for A.C. operation only, the coupling batteries between the two amplifiers may be replaced by conventional resistancecapacitance networks.
Patent GB-302046-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B51/00
Filed: 1927-12-09
Abstract: 302,046. Greenwood, G. Dec. 9, 1927. Starting and stopping gear.-Power driven sewing machines are stopped automatically on breakage of the upper threads, or stoppage of the feed of material, by electric contacts making and breaking a circuit alternately with the makes and breaks of a commutator on the driving shaft. The needle-thread take-up loop alternately makes and breaks the stopping circuit by a contact 16 on a pivoted arm 15 and a contact 17. The thread engages around the spring member 20 to twist it slightly and separate the contact members 24, 25. The material being fed also engages a broad head 19 of this member and separates the contacts 24, 25 by tilting. The driving shaft e is provided with a commutator 32 having a contact portion 33 engaging the brush 26 as the shaft rotates. When the contacts 16, 17 and 24, 25 are made through failure of the thread or feed of material, the first " make " of the contacts 33, 26 will energize the solenoid 27, attracting the armature 28 to occupy a position below the end of the levers t. As a cam n on the power shaft e rotates to depress the ends u of the levers t by engaging the roller w, the levers, instead of rocking idly on the pivot s as was formerly the case, rock on the fulcrum consisting of the engagement between the ends of the levers and the armature 28. This enables the spring 10 to lift the levers to free the block q, from the pivot s against the action of the spring 13, whereupon a spring 31 shoots the shaft p outwards and causes the beltshift o to transfer the driving belt from the active pulley g to the idle pulley h, so stopping the machine. The device may also operate an audible or visible signal.
Patent GB-334088-A (GB)
Abstract: 334,088. Richardson, P. H., and Florence, C. P. Sept. 30, 1929. Convertible close and open freplaces; grates; doors; dampers; outlets to chimneys.-A selfcontained convertible closed and open fireplace comprises a casing 1 having a front opening containing bars 2 and closable by doors 14, 14<a>; a partition 12 and an inclined baffle 13 forming between them and the rear of the casing a flue communicating at its lower and upper ends respectively with the fire and with the upper part of the stove; a damper 25 or other means for differentially controlling the draught passing from either end of this flue to the chimney outlet 9; and means for regulating the speed of combustion in any position of opening of the doors 14, 14a and comprising in the stove shown, a hit and miss air valve 23 in the hinged ash-pit door 20, and openings 29, 29a in the grate support 5 which admit the air respectively to the front of the fire and to the rear flue. The damper 25 may be operated conjointly with the sliding door 14<a> by means of a cam 27 on the door which engages the cranked end 26<a> of an arm extending from the damper shaft 26, the damper being in the, position shown in full lines when the doors are shut. The doors 14, 14a may be interconnected for simultaneous operation. The bottom grate 7 may be reciprocated by a rod 31 passing through a lug 30 on the grate support 5, and having an eye 32 engaging a pin on the grate. The flue outlet 9 may be adjusted with its axis either horizontal or vertical.
Patent GB-1187318-A (GB)
Title: Pintle Wires for Clipper Seams
Inventor: GISBOURNE BRYAN JAMES
IPC: F16G3/02
Filed: 1968-07-12
Abstract: 1,187,318. Seaming non-metallic sheet material. SCAPA DRYERS Ltd. 4 Nov., 1968 [12 July, 1968], No. 33441/68. Heading B5K. A pintle wire unit, Fig. 4, for a clipper seam in a paper maker's dryer felt comprises two sideby-side pintle wires 11, a lead-in wire 16 arranged in end-to-end disposition relative to the wires 11, and a coupling 15 to secure the wires 11, 16 together. The wires 11 are of circular cross-section and are preferably made of plastics material and of the construction described in Specification 997,354. The wire 16 is of rectangular crosssection with a rounded-off or pointed leading end and is made of hardened and tempered spring steel. The coupling 15 preferably comprises a tubular sheath of metal or plastics material and the wires 11, 16 are retained therein by adhesive or by crimping the sheath on to the wires. Alternatively, the sheath 15 is formed by moulding resinous material about the abutted wire ends. The pintle wire unit is supplied wound on to a drum enclosed in a cardboard box and is manually drawn out of the box through a hole therein. In use, the leading end of the wire 16 is inserted through interleaved clips on the felt ends and the protruding end thereof, Fig. 8 (not shown), is seized by clamps or pliers and pulled right through the seam so that the wires 11 only remain in the seam. The wire 16 and the sheath 15 are cut away and the protruding ends of the wires 11 are secured by bending, Fig. 10. The wire clips may be clenched in the selvedge of narrow tapered webbing sewn to the ends of the felt, Fig. 1 (not shown), or directly in the stiffened ends of the felt, Fig. 2 (not shown), in the latter case a thin trailing flap (14) being provided.
Patent GB-643046-A (GB)
Title: Process for the preparation of hydroxy-acylaminoazo dyestuffs
IPC: C09B43/12
Filed: 1947-12-18
Abstract: Hydroxy-acylamino-azo dyestuffs of the naphthalene series are manufactured by the action of acylating agents on azo dyestuffs of the general formula <FORM:0643046/IV (c)/1> wherein R represents the residue of a diazo compound and X hydrogen or SO3H, and wherein Y1 represents NHR1 (R1 being hydrogen, alkyl, cycloalkyl, aralkyl or aryl) and Y2 hydrogen, or vice versa when X is hydrogen.  If the dyestuffs are simultaneously acylated in the 8-hydroxy group, they are subsequently treated with saponifying agents (e.g. sodium carbonate, ammonia, caustic soda solution, acetic acid or moderately concentrated mineral acids) in order to split off the acyl residue from the 8-hydroxy group, whilst any acylated hydroxy or amino groups in the radicals R or R1 may be similarly freed if desired.  When the diazo component contains a p-hydroxy group, acylation is effected in the absence of water in order to acylate the NHR1 group as well as the hydroxy groups, the latter being then deacylated.  In other cases acylation may be effected in the presence of water, and in all cases in the presence of organic solvents (e.g. acetone, benzene, pyridine or other tertiary bases), or in the absence of solvents, and if desired in the presence of acid binding agents (e.g. sodium acetate, potassium carbonate, calcium carbonate or calcium hydroxide) or of condensation catalysts (e.g. sulphuric acid, acetylsulphuric acid, sulphoacetic acid, aminosulphonic acid or phosgene).  Suitable acylating agents are: formic, acetic and thioacetic acids, acetic anhydride, acetyl, chloracetyl, butyryl, stearyl and benzoyl chlorides, cinnamic chloride, the nitrobenzoyl, anisoyl and naphthoyl chlorides, ethyl chlorocarbonate, alkyl sulphochlorides, benzene-, toluene- and naphthalene-sulphochlorides, polybasic acids and their anhydrides and halides (e.g. phosgene, thiophosgene, chlorsulphonic acid, phthalic anhydride and oxalic acid), and compounds regarded in the dyestuffs art as equivalents of acylating agents (e.g. isocyanates and cyanuric chloride).  Examples illustrate the action of certain of these agents on a variety of dyestuffs of the stated general formula, including some in which R represents the residue of a tetrazotized diamine.  The products, unlike the starting materials, are capable of coupling with a further diazo compound.  Samples have been furnished under Sect. 2 (5) of ten further dyestuffs. Specifications 281,410, [Class 2 (iii)], 507,967, 525,642 and 531,292 are referred to.
Patent GB-664698-A (GB)
Title: Improvements relating to the regulation of hydrogen pressure
IPC: H01J17/26
Filed: 1948-12-30
Abstract: 664,698. Electron discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America). Dec. 30, 1948, No. 33514/48. Drawings to Specification. Class 39 (i). [Also in Group XXVIII] The pressure of a hydrogen atmosphere within an electron discharge or other hydrogenfilled device is kept constant by the use of zirconium hydride. This is preferably in the form of a powdered coating on a tungsten or molybdenum filament which is heated by a potentiometer-controlled current. For a given wattage, an equilibrium gas pressure is set up, deviations from this pressure being compensated for by further absorption by or liberation of hydrogen from the zirconium hydride, until the equilibrium pressure is regained, the reaction being reversible. A higher wattage supplied to the filament will give a higher equilibrium pressure. The wattage may be made dependent upon conditions within the envelope, so as to stabilize the hydrogen pressure automatically, as, for instance, in an electron discharge device in which the filling tends to clean up during operation. Specification 521,818 is referred to.