baber/WOPTO huggingface dataset:
Patent GB-687201-A (GB)
Title: Improvements in or relating to microporous graphite battery electrodes and methods of making the same
IPC: H01M4/80
Filed: 1949-10-18
Abstract: Porous graphite electrodes which may be impregnated with metal salt solutions are prepared by mixing 100 to 150 parts by weight of a finely divided washable filler such as zinc oxide, calcium phosphate or sodium chloride with 100 to 125 parts by weight of a source of carbon such as tar, moulding the resulting mixture into shapes, heating the shapes for conversion into carbon at a temperature of about 650 DEG C, and not above 700 DEG C, leaching the filler to produce a carbon body having a porosity of 75 to 80 per cent and graphitizing at 2400C DEG  to 2700 DEG C to produce graphite bodies of the same porosity.  The bodies may now be placed in an autoclave under reduced pressure and a 10 to 20 per cent solution of the active material for a battery electrode, such as nickel chloride, a mixture of cadmium chloride and ferric sulphate, lead nitrate or a mixture of ferric and mercuric sulphates, is added. The pressure is increased to atmospheric, the bodies washed and treated with an alkali such as caustic soda to precipitate the active material as a metal hydroxide. The electrodes are then washed and the process repeated to give a final impregnation of 100 grams of graphite with 200 grams of nickel hydroxide for example.  In the preferred form, tar, having a residual carbon content of about 40 per cent by weight is mixed with sodium chloride reduced to 1 to 3 microns size either by grinding in admixture with petroleum distillate or in admixture with the tar. Mixing is continued and heat applied to remove volatiles; a graphitization catalyst such as dried kaolin may be added at this stage, but preferably before, in admixture with the washable filler. The mixture is cooled to 30 DEG C to solidify it, cold ground and moulded under 500 to 1,000 kilograms/square centimetre pressure.  The shaped bodies are carbonized preferably in an oxygen-free or reducing atmosphere, or surrounded by fine charcoal, at a temperature below 700 DEG C for five to six days.  The filler is then leached with hot water or dilute acid and the shaped bodies graphitized either by heating to 600 DEG C, increasing to 800-1000 DEG C at the rate of 50 DEG C per day followed by heating to 2400 to 2700 DEG C at 200 DEG C per day, or alternatively heated to 1200 DEG C at a rate of 200 DEG C per hour, followed after four hours at this temperature by heating at the same rate to 2400-2700 DEG C.  The graphited bodies are washed and may be impregnated.  Preferably during graphitization the bodies are surrounded by carbon and silica whereby a small proportion of silicon carbide is deposited in the pores.  Broken pieces of impregnated graphite electrode may be packed in perforated tubes after grinding to 1 to 1.5 millimetre size, and pressed around a central nickel core.
Patent GB-185975-A (GB)
Title: Improvements in or relating to spiral spring suspensions for motor vehicles
IPC: B60G11/14
Filed: 1921-10-10
Abstract: 185,975. Joubert, A. J. E. Oct. 10, 1921. Radius and torque rods. - In a suspension for motor vehicles in which spiral springs are interposed between the axles and the chassis frame. each axle is connected to the frame at one side by a single radius rod and at the other side by a double or two-armed rod disposed so as to resist torque. As shown, the frame 5 is suspended beneath ths axles 2 by springs 3, 6 connected to cross-pieces 1 on the axles and lugs 4 on the frame. The front axle 2, Fig. 2, is connected to the frame at one side by a single radius rod, and at the other side by a two-armed rod 8 the arms of which are connected to the axle and to a rigid arm 9 thereon. The back axle 2, Fig. 3, is furnished with a similar arrangement except that the torque member comprises two rods 11, 12 pivoted to the brake-plate 10 or axle 2. The axles are also connected to the ends of the frame by adjustable tie-rods 14 furnished with springs 15.
Patent GB-741202-A (GB)
Title: Improvements in sewing machines
IPC: D05B27/18
Filed: 1953-09-30
Abstract: 741,202. Sewing - machines. UNION SPECIAL MACHINE CO. Sept. 30, 1953 [Oct. 1, 1952], No. 26798/53. Class 112. In a sewing-machine having rotatable workadvancing elements and means for producing overedge stitches, particularly a cup-feed machine, work-advancing lateral movements are imparted to the needle, preferably by angular movement of the needle-bar. In the scale-pan machine shown, the needle-bar 55 reciprocates in bearings 58 on a carrier 60 pivoted at 61, under the action of a crank on the main shaft 15, the carrier 60 being oscillated by an adjustable crank and link connection from an eccentric on the shaft 15 so that the needle moves in the line of feed to assist in the movement of the work by the feed-cups 37, which are rotated continuously by the gearing shown from the shaft 15 so that the feed is not impaired by inertia effects; the gearing is changed appropriately when a different length of stitch is required. The needle-bar 55 is provided with a sleeve 80 having a cylindrical part fitting in the adjacent bearing 58 and a spherical part fitting in seats 83 slidably mounted in a divided retaining member 87 which is retained by a plate 91 in a rebated aperture in the wall of the machine frame. The interior of the frame is filled with oil-mist when the machine is in motion, by a disc 132 on the shaft 15 dipping into oil 13 in the base of the frame, and passages 134, 135 are provided to conduct oil from the frame wall to and from the slide 83 and ball member 80. A reciprocating and oscillating thread-carrying overedge looper 93 and an oscillating spreader carried by a shaft 115 co-operate with the needle and are actuated as described in Specification 463,104; the spreader may be replaced by a thread-carrying looper. The outer feed-cup 37 is driven through a universal joint 44 and is mounted so that it can swing slightly about a pivot 48 for insertion or removal of the work, under the control of means such as those described in Specification 436,616. To balance the mechanism as far as possible, a lever 124 carrying a weight 125 is pivoted at 105 and is oscillated in suitable phase by a pitman from an eccentric on the shaft 15. The usual fabric guides 136, carried by the outer feed-cup support, and 137, on a bracket (not shown) adjacent to the shaft of the inner cup, are modified to permit the lateral movement of the needle. The feed-cups may be operated intermittently in the usual way, if desired. Specification 710,223 also is referred to.
Patent GB-639929-A (GB)
Title: Improvements in or relating to polycarboxylic acids and method of preparing the same
IPC: C07C51/08
Filed: 1946-09-06
Abstract: In the reaction disclosed in the parent Specification between a saturated aliphatic b -lactone and an inorganic salt in a polar solvent reaction medium to give salts of b -substituted carboxylic acids, if excess lactone is present and the salt is a cyanide b -polyacyloxy carboxylic acid salts are obtained having a cyano group b -substituted in an acyloxy group.  For details of cyanides and lactones used (see Group IV (b)). The Specification as open to inspection under Sect. 91 is not restricted to the use of saturated aliphatic lactones but also specifies aromatic and unsaturated aliphatic lactones which may be substituted with groups containing halogens, nitrogen, oxygen or sulphur.  This subject-matter does not appear in the Specification as accepted.ALSO:The b -cyano-substituted carboxylic acids disclosed in the parent Specification by the reaction of a lactone of the general formula <FORM:0639929/IV (b)/1> where R1, R2, R3 or R4 are hydrogen or alkyl groups, with a cyanide ionizable in the polar solvent reaction medium are hydrolysed to give the corresponding b -carboxy-substituted carboxylic acid or salt.  It is preferred that 1-5 mols. of cyanide per mol. of b -lactone be used, that the temperature be below room temperature for the first stage and that water is the solvent.  Hydrolysis by any known method may be employed, but if alcohol-water solution is used as the hydrolysis medium esters of the alcohol with the polycarboxylic acid may be produced.  The reaction mixture obtained by treating b -propiolactone with sodium cyanide is hydrolysed with (a) aqueous hydrochloric acid solution and (b) aqueous sodium hydroxide solution to give succinic acid (after acidification in (b)) and with (c) alcoholic sulphuric acid solution to give diethyl succinate.  The Specification as open to inspection under Sect. 91 is not restricted to the use of saturated aliphatic b -lactones, but also specifies lactones of b -hydroxy-monocarboxylic acids containing cycloalkyl, aryl and aralkyl substituents, lactones of unsaturated b -hydroxy carboxylic acids, mono- and di-b -lactones of di-carboxylic acids and b -lactones containing oxygen, nitrogen, sulphur and halogens combined in such groupings as nitro, ether, amino and hydroxy as well as the carbonoxy structure and hydrogen atoms.  This subject-matter does not appear in the Specification as accepted.
Patent GB-925351-A (GB)
Title: Improvements in or relating to the gauging of screw threads
Inventor: SIBTHORP ARTHUR NIGEL
IPC: G01B11/24
Filed: 1958-08-20
Abstract: 925,351. Gauging screw threads. WATSON MANASTY & CO. Ltd. Aug. 11, 1959 [Aug. 20, 1958], No. 26822/58. Class 106 (2). A template or chart having an inscribed line 1 representing a desired form of screw thread of given pitch has superimposed scales for indicating the actual extent, e.g. in thousands of an inch, by which an actual screw-thread, projected on to the chart, departs from the desired form. As shown, scales 5 and 6 are provided on the line 1 at points corresponding to the major and minor diameters and a further scale 4 is provided at the effective diameter represented by line 2, which also bears a scale 7. In a further chart, Fig. 2 (not shown), for gauging nuts and bolts, scales such as 6 are provided on each side of a vertical line so that they relate separately to the minor diameter of a nut and a bolt.
Patent GB-616573-A (GB)
Title: Improvements in or relating to radio-receivers
IPC: H03H2/00
Filed: 1946-09-06
Abstract: 616,573. Aerial coupling arrangements. PHILIPS LAMPS, Ltd. Sept. 6, 1046, No. 26862. Convention date, March 10. 1943. [Class 40 (v)] The aerial of a receiver is coupled to a permcability tuned coil 3 in series with a capacity 2 which is shunted by an auxiliary coil 6, the latter being inductively coupled to the tuning coil. The core of the tuning coil is arranged to move into the field of the auxiliary coil as it moves out of the tuning coil so as to increase the coupling at the higher frequencies thereby producing a substantially uniform signal over the whole tuning range.
Patent GB-745856-A (GB)
Title: Apparatus for use in testing transmission systems
IPC: G05G17/00
Filed: 1953-10-01
Abstract: 745,856. Variable speed gearing. AKTIEBOLAGET BOFORS. Oct. 1, 1953 [Oct. 4, 1952], No. 26948/53. Class 80(2) Apparatus for use in testing transmission systems, especially servo-systems for elevating and training guns on moving targets, comprises a variable speed electric motor 1, Fig. 1, which can be connected through a clutch 10 to one element of a differential system consisting of a series of three differentials 7, 8, 9 having an output shaft 15, and is also connected to the driving unit 3 of a "sine/cosine divider" 2. The "sine/cosine divider" is driven through a shaft 17, Fig. 2, which rotates bevel gearing to drive a disc 3a engaging a ball 20 engaged on its opposite side by an idler disc 3b. The discs 3a, 3b are carried by supports 21, 22 connected for rotation together by the gears shown and by a shaft 23, the supports, &c., forming an "angle displacement unit" 12. The "angle displacement unit" is driven through a clutch 11, either from the output shaft 15 of the differential system or by a second variable speed electric motor 13. Drive is taken from the ball 20 of the "sine/cosine divider" by discs 24, 25, opposite to idler discs 26, 27, and is fed through shafts 4, 5 to two of the three elements of the differential 7. A connection 14 is provided to the differential 9, so that an additional movement can be impressed on the system either manually or by another motor (not shown). In use, the output shaft 15 is connected to the system to be tested, e.g., to the control hand wheel of a gun. With the clutches 10, 11 disengaged and engaged respectively, as indicated in Fig. 1, so that the motor 1 drives the "sine/ cosine divider" 2 and the motor 13 drives' the "angle displacement unit," a sinusoidal oscillatory movement is produced. With the clutch 10 engaged to couple the motor 1 to the planet carrier 16 of the differential 8 and the clutch 11 operated so that the "angle displacement unit" 12 is driven from the output shaft 15 of the differentials, the system simulates the movements necessary for the gun to aim at an aeroplane in flight.
Patent GB-1522567-A (GB)
Title: Reagent and method for thyroxine binding globulin assay
IPC: G01N33/74
Filed: 1977-06-28
Abstract: 1522567 Determination of thyroxine-binding globulin CORNING GLASS WORKS 28 June 1977 [30 June 1976] 26968/77 Heading G1B Thyroxine-binding globulin is determined using a reagent comprising antibodies to thyroxinebinding globulin attached to the surfaces of essentially water insoluble carrier particles, for example particles comprising an arylamine derivative of silanized porous glass, average particle size about 1 micron, the sample under test being incubated with the reagent and with radiolabelled thyroxine. The unbound radiolabelled thyroxine and the complexed materials are separated and the radio-activity of either is counted. Specification 1522566 is mentioned.
Patent GB-704202-A (GB)
Title: Improvements in bottle openers
IPC: B65D51/24
Filed: 1951-11-16
Abstract: 704,202. Bottle openers combined with stoppers. TORRANCE, W. R. L. Nov. 17, 1952 [Nov. 16, 1951], No. 26981/51. Classes 125 (2) and 125 (3) A crown-cork opener 1 comprising a hooked part 3 is hinged at 5 to a handle part 2 in such a way that the unfolding is limited to allow the handle 2 to act as a lever, the handle being formed to act as a reseal closure for the bottle by being slid on to the bottle neck which is engaged between the converging sides 8 of the handle whilst a resilient pad 13 contacts the bottle neck. When folded, a part 14 on the opener 1 engages the end 15 of the handle so as to conceal the pad 13. The sides of the handle have inturned flanges 9 to engage the bottle neck.
Patent GB-676314-A (GB)
Title: Improvements in and relating to multi-stage axial-flow compressors and blading therefor
Inventor: ELLIOTT ALBERT GEORGE
IPC: F02C7/047
Filed: 1949-10-21
Abstract: 676,314. Axial-flow compressors; gas turbine plant. ROLLS-ROYCE, Ltd. Oct. 23, 1950 [Oct. 21, 1949], No. 27159/49. Class 110(iii) An axial-flow compressor blade comprises hollow sheet-metal shell 22 containing a longitudinally extending folded sheet-metal insert 24 having one or. more webs 24a extending between the walls of the shell and bonded thereto by attachment portions 24b. The bonding may be by brazing or welding. The shell 22 is made by folding a sheet of metal so that the fold forms the leading edge of the blade, the free edges of the sheet being welded together to form the trailing edge. Alternatively, two shaped sheet-metal parts are secured together along the leading and trailing edges. The shell 22 fits over and is welded to a correspondingly shaped projection 21a on the blade root 21. To prevent formation of ice on the blades hot gas is derived from the combustion equipment or exhaust system of the gas turbine plant of which the compressor forms a part, or from a separate combustion chamber, and is supplied by way of a pipe 15 and bores 23 to the interior of stator blades 11a, 11b, where it flows longitudinally through the channels formed by the inserts 24 and exhausts through the blade tips. Alternatively, or in addition, the hot gas exhausts through holes in the leading or trailing edges or both. The hot gas takes a similar path through the rotor blades 14a, 14b, being supplied for this purpose by way of the hollow compressor shaft 12 and ports 20.
Patent GB-903180-A (GB)
Title: Improvements in or relating to measuring apparatus
Inventor: WALKER DAVID ARTHUR
IPC: G01B15/02
Filed: 1960-08-05
Abstract: 903,180. Radiation thickness gauges. ROLLSROYCE Ltd. May 31, 1961 [Aug. 5, 1960], No. 27181/60. Class 40 (3). The thickness of material which exists in the form of a hollow body, or is employed to constitute one wall of a hollow chamber or tube, is measured by passing a gas through the cavity within the body, or through the formed chamber or tube, irradiating the material with a source of alpha, beta- or gamma radiation, and determining the ionization of the gas to provide a measure of the thickness of the material. Air, or gas such as argon, is fed from a container 1 through a hole 5 in a turbine blade 4 clamped in a support 3 and irradiated by a source 15 of radiation located on a probe 14 mounted in a carriage 16 traversable to different measuring positions along the length of the blade 4. The gas is fed through pipes 7, 8 to an ionization chamber 9 connected to a recording electrometer 13. In a modification, Fig. 2 (not shown), the tube 8 leads to a Geiger counter connected to a pulse counter and indicator. If beta radiation is employed, the source may be Strontium 90, Yttrium 90, Cerium 144 or Praseodymium 144. For thickness of onetenth of an inch or more, gamma rays or X-rays may be employed.
Patent GB-1045153-A (GB)
Title: Improvements in or relating to fluid pressure operated systems
IPC: G05B19/46
Filed: 1963-07-09
Abstract: 1,045,153. Telemotor systems. EARL A. THOMPSON MANUFACTURING CO. July 9, 1963 [July 16, 1962], No. 27191/63. Heading F1P. A telemotor system Fig. 1 (not shown) for moving a load 122, comprises a double-acting hydraulic motor receiver 126 having a piston rod 132 fixed to the load, and a pair of singleacting cam operated transmitters d and e connected to the motor by liquid columns 150d, 150e to move the load against the counter-bias of an accumulator RO supplying the motor through a line 152 containing a piston valve 184 arranged to suddenly throttle the return supply from the motor to the accumulator, part way through the stroke,. to thereby decelerate the load. The piston valve 184, Fig. 2 (not shown) is slidable in a sleeved housing 170 having connections 160, 164 for the line 152 and a connection 196 for a liquid column 150b associated with a further single-acting cam operated transmitter b. The piston valve 184 is normally urged against an adjustable stop 194 by the pressure of the accumulator RO acting on the right hand end thereof so that the accumulator pressure passes through the housing 170 and acts on the left hand side of the motor piston 128. When the load 122 has completed about one-half of its stroke the transmitter b displaces the valve piston 184 to the right so that its bevelled end 188 enters a self-centering escape opening 180 to throttle fluid being forced by the motor piston 128 back into the accumulator RO, the resulting backpressure decelerating the load 122. The escape opening is formed in a replaceable tool steel washer insert 182. The system also comprises two further transmitters a, c and their associated motor receivers 120, 116 and each transmitter is provided with a replenishing valve 106 and a relief valve 108, both of which communicate with a low pressure oil reservoir 104. The transmitters are each operated by a cam 12 fixed to a camshaft 10 rotatable by either a high speed hydraulic clutch 38 or a low speed hydraulic clutch 48. Air bleed fittings 198 are provided at high points on the housing 170.
Patent GB-428015-A (GB)
Title: Improvements in and relating to electric stoves
IPC: F24C15/12
Filed: 1934-09-21
Abstract: 428,015. Joints for stoves ; hot-plates. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 21, 1934, No. 27202. Convention date, Sept. 21, 1933. [Class 126] Adjacent vertical edges b of the walls a of an electric stove are bent through an angle of about 135‹ and are secured to T - shaped strips c which cover the joints, to which the supporting legs e and a stove plate g are attached. Each leg e is attached by a screw to the base of a bracket d, which is attached to the joint. At the top of each joint is a stirrup piece i which carries a shallow, trough-shaped plate g. The upper parts o of the rear screws k for holding the plate g in position form parts of hinges for an upper plate, which at the front rests on the conical heads of the other screws holding the plate g.
Patent GB-244057-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B15/18
Filed: 1925-10-29
Abstract: 244,057. Passega, C. Dec. 2, 1924, [Convention date]. Endless-track vehicles.-A portable or endlesstrack wheel comprises tread shoes e freely suspended from the rim of an ordinary wheel, by couplings comprising pins and slots with curved outlines, the pins being arranged at a distance irom the centre of the wheel at least equal to the wheel radius. The pins b<1> are carried by blocks a provided with tenons c<1> and bolts or cotter pins d whereby they are secured to the outside of the rim of the wheel. The sides of the slots l on the shoes in which the pins b<1> work are cycloidal so that as the wheel rolls on one shoe a pin rides against a side of the slot in the next shoe. Curved parts on the blocks fit into similar depressions k in the shoes. The pins may be on the shoes and the slots l in the blocks. The shoes comprise side flanges connected by tread-bars h.
Patent GB-1193298-A (GB)
Title: Pulse Storage Circuit
IPC: G11C19/18
Filed: 1967-06-13
Abstract: 1,193,298. Transistor pulse circuits. HAYAKAWA DENKIKOGYO K.K. 13 June 1967, [15 June, 1966], No. 27275/67. Heading H3T. A pulse storage circuit comprises first and second MOSFET's 1, 2 having the output of one coupled to the input of the other by gates 4, 5. The input to the circuit is fed via a third gate 3. During the presence of an input signal, a clock pulse # 1  opens gate 3, and the input signal is stored in device 1. Gate 4 is then opened by clock pulse # 2  to store this condition in device 2 and produce an output signal at D. Gate 5 is then opened by clock pulse # 3  to regenerate the condition of storage device 1. The circuit may be used in a "JK flip-flop", Fig. 3 (not shown).
Patent GB-1353927-A (GB)
Title: Continuous casting of electroslag refined metal
IPC: B22D23/10
Filed: 1971-04-19
Abstract: 1353927 Continuous casting; casting processes ACIERIES REUNIES DE BURBACH-EICHDUDELANGESA 19 April 1971 [16 April 1970] 27304/71 Heading B3F [Also in Division F4] Molten metal 3, produced in a crucible 3 by an electro-slag refining process using electrodes 4 and an electro-conductive slag 2, passes through at least one spout 7 into at least one open-ended mould 8 detachably connected to the crucible so that there is an enclosure in which a space 10, above the mould contents, is sealed and contains gas (such as a non-oxidizing gas, e.g. an inert or reducing gas) at super-atmospheric pressure supplied by a conduit 11 to balance the head of metal 3 in the crucible 1 and spout 7. The enclosure may be provided by a cover fitted round the spout 7. The crucible may feed several moulds of different cross-section each through a single spout. The gas pressure in the enclosure 10 may be regulated automatically according to the level in the crucible 1, to regulate the level in the mould. The regulation circuit may include a level detector in the mould. A detector in the mould 8 may close a spout valve 5 if a safety level is exceeded. A branch 12 from the gas conduit may end at a porous plug 13 in the crucible 1 so that, with a small escape of gas from the plug 13, the pressure in the conduit 11 corresponds to that of the head of metal and slag in the crucible and the metal and slag in the crucible and the metal level in the mould remains steady. A layer of slag may cover the melt in the mould 8. To avoid a crust forming, a portion 9 of the mould is of insulating material or may contain heating elements 15. Heating resistances 14 may be incorporated in the nozzle 7 and in the crucible lining.