baber/WOPTO huggingface dataset:
Patent GB-827408-A (GB)
Title: Improvements in or relating to compressed-gas electric circuit interrupters
IPC: H01H33/873
Filed: 1957-05-31
Abstract: 827,408. Gas-blast switches; contact members for switches. WESTINGHOUSE ELECTRIC CORPORATION. May 31, 1957 [.Tune 7, 1956], No. 17338/57. Class 38 (5). A gas-blast switch has a tank 2 containing gas under pressure and enclosing interrupting assemblies 34 each comprising a main current interrupting unit 44 and a parallel-connected impedance interrupting unit 45. When a conducting cross-bar 36 is lowered, it initially opens a dump valve (not shown) in each assembly to connect a space 122 below a piston 82 through conduits 175, 184, exhaust chamber 58 and hollow bushing 27 to atmosphere. The piston 82 is moved down by the pressure within the tank to open the main contacts 90, 91 and the annular blast valve surrounding them. The resulting gas blast blows the arc through the nozzle contact 91 on to fixed and movable arcing contacts 64, 93 where the arc is extinguished, the current through the switch then flowing through the parallel contacts 67, 126 and resistor 54. Near the end of the opening stroke of the main contact 90, an extension of the arcing contact 93 strikes a valve stem 113 to open a second dump valve 116 which through conduits indicated at 127 interconnects the space 123 below the piston contact 126 with the space 122 so venting the space 123 to atmosphere. The piston is moved down to open the contacts 67, 126 and the annular blast valve surrounding them. The resulting arc is blown out by a blast of gas from the tank to interrupt the residual current through the resistor 54. The conducting cross-bar 36 now separates from disconnecting fingers 56 to interpose isolating gaps in series with the interrupting assemblies 34 and the first dump valve (not shown) recloses to permit pressure to build up in the spaces 122, 123 to reclose the contacts 90, 91 and 67, 127 and the second dump valve 116. The exhaust gases passing into the chamber 58 are also vented through the hollow bushing 27 which is provided with a spring-loaded outlet valve, Fig. 13 (not shown), to prevent complete loss of pressure in the tank 2. A three-phase switch may be formed by arranging three of the assemblies described on a common frame with the three cross-bars connected to a common pneumatic operating mechanism, Fig. 1 (not shown). Contact members for switches.-The main movable contact assembly comprises an annular contact 90 provided by resilient fingers 94 which co-operate with a vertical wall surface 91 of a stationary orifice contact 59. Fingers 88 engaging the side wall of the piston 82 maintain an electrical connection between the fingers 94 and piston 82 and the fixed conducting parts connected to the disconnecting contact 56. Fig. 20 shows a modified arrangement in which the upper surface of the piston forms the moving contact and the orifice contact has segmental finger contacts 256 pivoted at 261 and biased downwardly by springs 257. Semi-circular spacers 269 prevent the air-blast blowing the contacts 256 into the exhaust passage. Specification 687,051 and U.S.A. Specificaton 2,507,210 are referred to.
Patent GB-1142721-A (GB)
Title: Method and apparatus for controlling reduction pots
IPC: C25C3/20
Filed: 1966-04-20
Abstract: 1,142,721. Automatic control systems for aluminium reduction pots. REYNOLDS METALS CO. April 20, 1966 [April 29, 1965], No. 17352/66. Addition to 1, 065, 427. Heading G3R. In a modification of the control system disclosed in Specification 1, 065, 427, which describes a method of controlling the anode to cathode spacing of an aluminium reduction pot to maintain the working voltage within a desired control range, the adjustable resistor 26 is connected across the cathode bus-bar 28 and the anode bus-bar 11 instead of across the bus-bar 28 and a probe inserted into the anode 12, as in the parent Specification. The voltage across the resistor 26 thus contains not only a component proportional to the working voltage V w  of the pot, i.e. the voltage between the anode face and the cathode face, but also components such as those resulting from voltage drops V A  and V c  in the anode and cathode, which latter components vary during the working period of the pot and which, in the system of the parent Specification, may result in an unnecessary control response, since the control system should desirably act only in response to changes in working voltage caused solely by variations in alumina concentration. In the present case, the variables such as V A  and V c  are reproduced by providing a cam with a surface profiled to correspond with the variables; this cam 25 is rotated during the working of the reduction pot, and controls the movement of the tap 31 on the resistor 26 in such a manner that the voltage V R  at the tap 31 is rendered independent of the said variables. Thus the controller 33, to which the voltage V R  is applied, responds only to variations in the true working voltage V w  of the pot, the effect of variables such as V A  and V c  being compensated for by the movement of the cam 25.
Patent GB-583991-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G1/26
Filed: 1944-09-13
Abstract: 583,991. Weighing-apparatus. DEUTSCH, H. Sept. 13, 1944, No. 17453. [Class 143] In a "Semi-Roberval" weighing scale, the weighbeam 1 is pivoted at 2 to the scale base 4 and the goods pan 11 is carried by a bridge piece 9, loosely pivoted on one arm of the weighbeam, and having a depending pillar 12 pivotally connected, at its lower end, to the base of the scale by a stay 14. As shown in Fig. 4 the stay, 14 is apertured at 15 for loose engagement with slotted portions 16 of bifurcated plates 17, one plate being adjustably secured to the lower end of the pillar 12 and the other plate secured to a member 13a vertically and horizontally adjustable on the scale base 4. The load is balanced by an indicating poiseweight movable on a rack bar 5 connected to the ends of the weighbeam, which may be provided with an adjustable poiseweight for taring purposes.
Patent GB-530700-A (GB)
Title: Improved method and apparatus for stitching up wool bales and like fabric containers
IPC: D05B1/02
Filed: 1939-06-15
Abstract: 530,700. Sewing. ZECKENDORF, V. June 15, 1939, Nos. 17508 and 23055. [Class 112] [Also in Group XVII] Apparatus for stitching-up a wool bale or like fabric :container comprises means, situated close to the top edge of the container, which hold the edges and form them, and the edges of a cover, into a number of folds or open pleats through which a thread is passed one or more times by an elongated needle. The apparatus comprises a frame 1, Fig. 1, supporting a rectangular base plate 3 that surrounds the top of the bale and carries three stitching units. Each unit consists of a bar 4, Fig. 3, journalled in bearings 5 and turned in unison with the other bars by a hand lever 20. The bar is provided with a number of prongs 13 for supporting the bale. The turning of a bar imparts a swinging movement about a pivot 8, Fig. 4, to a bar 7 which is provided with metal pleatforming fingers 6. A gang of retaining hooks 9 move between the fingers 6 and are carried by a sliding bar 10 which is moved to-and-fro by a hand lever 26. The outer edges of the base 3 are undulated and the ridges coincide with the finders 6 while the furrows coincide with the hooks 9. In use, the lever 20 is moved to turn the bars 4 until the prongs 13 are approximately horizontal, and the levers 26 are turned ,to move the hooks 9 to their innermost position, as shown in dotted lines in Fig. 6. The top edges of the bale are pulled up and impaled on the prongs 13 after the points of the hooks 9 have been forced through the fabric F. The lever 20 is now moved to turn the prongs upwards and is locked in this positon. After the bale is filled, the cover flaps 40, Fig. 6, is pulled over the open top and its edges are impaled on the hooks 9. The levers 26 are then turned to move the hooks 9 outwards and draw the edges of the cover flap into folds between the fingers 6. In this position, an elongated needle 28, Fig. 7, mounted on a holder 29, is forced through the folds, the needle being guided by the bottom member 31 of the handle which slides in a guide 30, Fig. 6, on the plate 3. The needle carries a thread between the fingers 6 and the hooks 9 and stitches the cover to the edges of the bale. When stitching is completed, the hooks are moved inwards by the lever 26, and bars 4 are turned and allow the bale to drop off the prongs 13 and to withdraw the fingers 6 from the clutches. In modified construction, the hooks engage the edges of the bale instead of impaling the fabric, and the base plate 3 is adjustable to suit bales of different sizes.
Patent GB-865744-A (GB)
Title: Agents for the chemical scaling and solidification of earth layers and buildings
Filed: 1959-05-22
Abstract: Agents for sealing and solidifying earth layers or buildings comprise a mixture of water glass and acid forming agents (as defined) characterized by containing 0.1-1% wt., based on the total mixture, of a mono or polybasic alkyl or aryl carboxylic acid, e.g. acetyl chloride, benzoyl chloride and sulphonic acid halides, such as benzene sulphonic acid chloride and toluene sulphonic acid chloride. The alcohol is preferably a normal or isomeric C1-C5 alcohol, e.g. methanol, ethanol, propanol, butanol and pentanol as well as ethylene glycol and glycerol and the ester, alcoholate or ketone are preferably those derived from such alcohols.  Ketones specified are acetone, methyl ethyl ketone or methyl isopropyl ketone.  Earth layers may be dam works and foundations and buildings be brickwork, masonry, concrete and material facings of buildings.
Patent GB-184647-A (GB)
Title: Improvements in or relating to machines for manufacturing packets for packing cigarettes or the like
IPC: B65B19/24
Filed: 1921-06-28
Abstract: 184,647. Aktiebolaget G. Arehns. Mekaniska Verkstad. June 28, 1921. Addition to 130,577. Paper bags, making.- Consists in an arrangement in machines of the kind described in the parent Specification, by which double packets can be made. An additional feeding and folding apparatus A, in the same plane as the main folding device, is associated with the mouldwheel carrying the mandrels 1 so that a strip 2 of tinfoil, or strips of tinfoil and paper are fed by rollers 3, 4 from a roll 5 and severed by a knife 7. A mandrel then moves the strip through a slot between folders 8, 9 wrapping the tinfoil about three of its sides as shown in Fig. 2. The folders 8, 9 then fold the tinfoil over the remaining side of the mandrel and a presser 16 advances to retain the edges in a folded position. Folders 17, 18 fold in the narrow bottom flaps, and a folder 19 makes one of the broad bottom flaps. The second broad flap is left outstanding while the mandrel passes on to the folding-device B. Here a sheet of paper is folder about the mandrel in a similar manner to form the outer case, one of the edges being pasted to close the packet. The broad flap with an outstanding inner flap from the first folding operation is folded down immediately after the two narrow flaps.
Patent GB-146258-A (GB)
Title: Improvements in or relating to explosives
IPC: C06B43/00
Filed: 1920-06-28
Abstract: Solid polymerization products of acetylene are obtained by the action of heat or the silent discharge on acetylene in the presence of cuprous oxide, and are used as ingredients of explosives.
Patent GB-975616-A (GB)
Title: Improvements in the consolidation and fireproofing of rock,earth and minerals
Inventor: BRANDT SIEGFRIED
IPC: E21F5/18
Filed: 1963-05-03
Abstract: 975,616. Soil stabilization. BERGWERKSVERBAND G.m.b.H. May 3, 1963, No. 17618/63. Heading E1F. A mixture comprising a hardenable synthetic resin, a hardener for the resin, and a plasticizing and/or elastifying compound is injected into rock, earth or mineral formations for, in appropriate formations, strengthening, waterproofing, and reducing the possibility of spontanteous combustion in the formation. The resin may be a phenolic resin, amino plastics, a polyurethane, an epoxy resin or polyester resin whilst the hardener can be an acid, polyalcohol, a polyamide, or a radical former. The plasticizing and/or elastifying component can be a bituminous coal tar or pitch, petroleum bitumen, heavy oil, stearine pitch, sulphate pitch, acid sludge or thallic oil.
Patent GB-486171-A (GB)
Title: Improvements in or relating to anti-dazzle devices for headlamps for automobile and like vehicles
IPC: F21V14/04
Filed: 1937-06-24
Abstract: 486,171. Vehicle lamps. KRIZIK-CHAUDOIR, METAL-, CABLE-, & ELECTRICAL WORKS, Inc., and NESPOR, S. June 24, 1937. No. 17626. [Classes 75 (ii), 75 (iii), and 75 (iv)] In a vehicle lamp, a substantially semiellipsoidal reflector32 extends forwardly from a sutbstantially paraboloidal main reflector 31 so as to deflect, downwardly or sideways the upper part S of the beam of light R projected forwardly bythe reflector 31, and the reflector 32 is rotatable manually,mechanically, or electrically about an axis X substantially parallel to the direction of travel A so that the deflected beam may be projected to one side or other of the road. In the form shown in Fig. 1, the reflectors 31, 32, a plane cover glass 33, and a bulb 27 are mounted on a flange 20 which is rotatable manually after pullingforward against the action of a spring 25. When this pull is released, two pins 23 on the rear surface of the flange 20 engage in one of a numberof pairs of apertures 24 in a fixed flange 12 to secure it in the new position. Alternatively, the pull forward may be effected by means of a Bowden wire. In the form shown in Fig. 4, the front of the lamp is fitted with an oval cover glass 34, and electrical means are provided for rotating the lamp about a hollow shaft 35. These means include a ratchet wheel 38, a spring-loaded snapper 65, and a pair of oppositely acting electromagnets 40, the electrical connections being such that the lamp is rotated in either direction by operating one of the electromagnets, and after rotation through a definite angle the reflector and the ratchet wheel are locked in position.
Patent GB-811712-A (GB)
Title: Purifying acetic acid by distillation
IPC: C07C51/44
Filed: 1955-06-17
Abstract: Acetic acid, e.g. that obtained by the oxidation of acetaldehyde is purified by subjecting it to fractional distillation under reduced pressure (e.g. 200 mm.); the crude acid is introduced into an upper section of a column which is provided with a dephlegmator, and the purified acid is withdrawn in vapour form from approximately the middle of the column; vapours of the low-boiling impurities pass overhead while high-boiling impurities are withdrawn from the base of the column.  A temperature corresponding to the boiling point of acetic acid, under the pressure used, is maintained between the feed-inlet and the outlet for the purified acid.  Small proportions of the acid are contained in the heads and bottoms.
Patent GB-1397692-A (GB)
Title: Machine memory systems
IPC: G06F9/42
Filed: 1973-04-12
Abstract: 1397692 Memory addressing systems HONEYWELL INFORMATION SYSTEMS Inc 12 April 1973 [13 April 1972] 17709/73 Heading G4A A multi bank memory 10 (Fig. 1) is addressed from a register 60 receiving bits representing the location within a bank from section 22 of address word 20, the bank being selected in accordance with the value of bank bit 24 enabling either register BR0 or BR1 to feed its contents to the address register 60. As described for a four bank memory there are four two-stage registers BR0, BR1, BS0, BS1 each capable of holding the address of one of the banks, register BR0 or BR1 being enabled when the bank bit is "0" or "1" respectively. In response to an interrupt signal registers BR0 and BR1 are set to their 00 and 01 states respectively to address banks 12, 14, the addresses in registers BS0, BS1 being previously transferred for saving to a register 70 in response to a signal IMK. At the end of the interrupt signal a further signal SMK is generated by which the data in the register 70 is transferred back to register BS0, BS1 for subsequent transfer at a signal SMK<SP>1</SP> to the registers BR0, BR1.
Patent GB-1348150-A (GB)
Title: Strontium carbonate
IPC: C01F11/18
Filed: 1971-05-28
Abstract: 1348150 Strontium carbonate FMC CORP 28 May 1971 [2 July 1970] 17734/71 Heading C1A Strontium carbonate is produced by adding continuously and simultaneously aqueous strontium sulphide solution and sodium carbonate to a reaction mass containing preformed strontium carbonate crystals, the reaction mass being sufficiently agitated for uniform admixture of reactants which are added in a ratio of from stoiohiometric proportions to within 30 molar per cent of stoichiometric proportions. Crystal sizes of from 1 to 7 microns may be obtained at stoichiometric proportions, and smaller sizes at non-stoichiometric proportions. The aqueous strontium sulphide solution may have a concentration of 12 to 18% by weight and be at a temperature of 85 to 100 C. The resulting slurry of strontium carbonate may be added to a second reaction zone and additional amounts of strontium sulphide or sodium carbonate may be added to precipitate additional carbonate with unreacted feed reactants present in the slurry. An agitated tank type reactor may be used wherein a slurry of the product is obtained by continuously overflowing the tank. In the examples, strontium carbonate is prepared from strontium sulphide solution and dry sodium carbonate delivered to a tank in stoichiometric proportions (Example 1) or with 5% excess (Examples 2 and 3).
Patent GB-1035927-A (GB)
Title: Solid heat triggered foam compositions
IPC: C08J9/02
Filed: 1963-05-06
Abstract: A free flowing composition which on heating melts and foams comprises particles of (a) a solid thermoplastic of m.p. 30-70 DEG  C. containing a plurality of isocyanate groups and (b) a material capable of releasing water at a temperature between the m.p. of the thermoplastic and the foaming temperature.  Specified compounds of type (b) release water between 50 DEG  and 120 DEG  C., e.g. borax, potassium ferrocyanide, MnCl2, Na2HPO4, ammonium chromium sulphate, sodium acetate, piperazine, CaSO4, BaCl2 and lactic acid as hydrates, citric acid, chloral hydrate, dibasic ammonium citrate, oxalic acid, sodium hydrogen oxalate, chromic sulphate, Ba(OH)2, Bi(OH)3, Ca(OH)2, Mg(OH)2 and Sr(OH)2.  The compounds of type (a) may be polyurethane prepolymers of softening point 30-70 DEG  C. containing 5-21% of unreacted isocyanate groups.  They may be prepared from polyols and a diisocyanate in stoichiometric excess, optionally in the presence of crosslinking agents. Polyols specified include: glycols, e.g. ethylene glycol, 1,4-butane diol, 1,5-pentane diol, 1,2-propane diol, and 1,10-decane diol; polyglycols, e.g. di- and triethylene glycols; polyoxyalkylene glycols, e.g. polyethylene glycol 200 and polypropylene glycol; a tetrol having 4 secondary hydroxyl groups joined to a central carbon atom by oxyalkylene chains and polyoxypropylene derivatives of trimethylol propane and sorbitol. The diisocyanate may be aliphatic carbocyclic or aromatic. Those specified include tolylene diisocyanates 4,41-methylene di-o-tolylisocycanate and methylene bis(4-phenylisocyanate). Foaming and setting should be carried out at below 130 DEG  C. Catalysts may be present, e.g. N-methylmorpholine and dibutyltin di-2-ethylhercoate. Surface active agents may be present, e.g. a polyoxyalkylene/siloxane block copolymer. There may also be present a material which is solid at room temperature but melts below the reaction temperature and acts as a solvent for the thermoplastic and as a plasticizer, e.g. triphenylphosphate or benzhydrol. Other additives may be fillers and pigments. The composition may be made by adding all the ingredients except (b) to the molten polyisocyanate, cooling and grinding the resulting mixture and then adding (b).  Many examples are given.  In Example IV a mixture of resins prepared from tolylene diisocyanate diethylene glycol and a polyethylene glycol of M.W. 200 is used.
Patent GB-834816-A (GB)
Title: Method and apparatus for the continuous determination of reactive constituents of gas mixtures
IPC: G01N21/78
Filed: 1956-06-08
Abstract: <PICT:0834816/III/1> A constituent in a gas mixture changes colour with a liquid reagent is determined in an apparatus which comprises a mixing nozzle or chamber 4, proportioning pumps 2 and 5 for passing the gas mixture and the reagent at predetermined rates into the mixing nozzle or chamber, a comparator cell 8 through which the reagent is passed to the mixing nozzle or chamber, a reaction path 10 of a length sufficient to permit complete reaction between the constituent being determined and the reagent, means 12 for separating the unreacted gas from the reagent, a test cell 16 through which the reagent is passed after separation of the unreacted gas, means 18 for regenerating the reagent disposed between the test cell and the reagent proportioning pump, means 22 for illuminating the comparator and test cells, and photometric means 23 and 24 for indicating and/or recording the difference in colour between the liquids in the two cells.
Patent GB-350242-A (GB)
Title: Improvements in vehicle wheels
IPC: B60C19/12
Filed: 1930-06-10
Abstract: 350,242. Pneumatic tyres. OCAMPO, E. V., 1155, Boulevard Artigas, Montevideo. June 10, 1930, No. 17811. [Class 144 (ii).] To provide an emergency tread in case of tyre deflation the ordinary detachable side flange of the rim is replaced by a deep ring 1 having a flat periphery 9 of slightly lesser diameter than the normal diameter of the type 2.
Patent GB-1179574-A (GB)
Title: Improvements in or relating to Vibrating Synchronous Motor with Two Selectable Speeds
IPC: H01H43/10
Filed: 1967-04-19
Abstract: 1,179,574. Change-speed gear. CROUZET. 19 April, 1967 [27 April, 1966], No. 17865/67. Heading F2D. [Also in Division H2] An oscillating motor has a stator with at least one field coil and a polarized rotor whose amplitude of oscillation may be varied. The rotor carries a pawl having two operating portions which engage with one of two coaxial ratchet wheels which have different numbers of teeth to provide differing output speeds. The motor comprises a cup-shaped housing 1 and a wall 2 which contains a field coil 4 connected to a single phase A.C. supply through resistor R. A rotor 6, including an annular permanent magnet 6a, is mounted on a non-magnetic shaft 5 and co-operates with polepieces 3. The rotor has two diametrically opposed arms 6c, 6d which are aligned with arcuate slots in wall 2. A pair of springs are attached between pin 10 and the wall and are rated such that the mechanical resonant frequency of the moving parts is approximately equal to the supply frequency. A pawl 8 is attached to pin 7, mounted in arm 6c of the rotor, and is biased by spring 9 so that nose 8a of pawl 8 engages with ratchet wheel 12. When the amplitude of oscillation is increased by short circuiting resistor R using contact K, the end 8c<SP>1</SP> of pawl 8 is moved under stop 18 so that nose 8b of the pawl engages with ratchet wheel 13. The number of teeth 12b, 13b are different so that differing output speeds are obtained from drive pinions 12a, 13a. Pawls 14, 15 prevent reverse rotation of the ratchet wheels.