baber/WOPTO huggingface dataset:
Patent GB-1302686-A (GB)
IPC: B63C11/24
Filed: 1970-10-01
Abstract: 1302686 Diving equipment MINE SAFETY APPLIANCES CO 1 Oct 1970 [20 Oct 1969] 46797/70 Heading B7U Underwater breathing apparatus comprises a canister 1 having an inlet 7 and an outlet 8, a bed of oxygen-producing and carbon dioxide absorbing chemical in the canister between the inlet and outlet and constituting the primary oxygen source, and a mouthpiece 11. An exhalation conduit 12 connects the mouthpiece with the canister inlet and an inhalation conduit 13 connects the canister outlet with the mouthpiece. A breathing bag such as 15 or 18 connected with one of the conduits is provided with a normally closed check valve 16. A pressure tank 22 contains a mixture of oxygen and a diluting gas and has an outlet 23, and a demand valve 24 connects the tank outlet with the inhalation conduit 13. The embodiment shown has two breathing bags 15 and 18.
Patent GB-1092284-A (GB)
Title: Improvements in or relating to the manufacture of articles from thermoplastic materials
Inventor: HAWKES JOHN ARTHUR
IPC: B29C45/40
Filed: 1963-11-28
Abstract: Articles such as shoe stiffeners are injection moulded on to suitable sheet material which is used to remove the articles from the mould and can subsequently be readily stripped from the articles.  The injected material may be a copolymer of ethylene and ethyl acrylate or ethylene and vinyl acetate.  The sheet material is impervious to the molten material and resistant to rupture thereby at the injection temperature, and may comprise a cellulose film or tracing paper. Alternatively it may comprise a base sheet having a coating of plastics material which adheres to the article and is readily strippable from the base sheet.  The sheet material may be fed intermittently from a supply reel to a take-up reel, and may be slit into strips one of which carries the sprue.
Patent GB-1381897-A (GB)
Title: Golf ball dimple spatial relationship
IPC: A63B37/00
Filed: 1972-10-12
Abstract: 1381897 Golf ball surface ACUSHNET CO 12 Oct 1972 [20 March 1972] 47054/72 Heading A6D The dimples on the surface of a golf ball are arranged so that at least 80% of the distances between the closets points on the edges of adjacent dimples are less than 0.065 inches and at least 55% of these distances are greater than 0.001 inches. Preferably 100% of the dimples satisfy both these conditions. The dimples may be round or of other shape and either evenly or irregularly distributed in icosahedron areas on the golf ball. The number of dimples, their overage depth and diameter are related by an equation which is used to determine best flight characteristics and wherein different parameter values are substituted depending on the number of dimples. Examples of are given using the formula.
Patent GB-1392037-A (GB)
Title: Monoazo dyestuffs
IPC: C09B29/12
Filed: 1971-10-12
Abstract: 1392037 Amino and nitro substituted diphenylamine compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Sept 1972 [12 Oct 1971] 47452/71 Heading C2C [Also in Division C4] Compounds of formula wherein R<SP>1</SP> is OH, NH 2 , mono- or di-alkylamino, arylamino or sulphatoalkylamino and R<SP>2</SP> is H, 50 2 NH 2 , SO 2 NH-alkyl, SO 2 NH-aryl or SO 3 H, R<SP>1</SP> and R<SP>2</SP> being chosen so that the compounds contain a single optionally substituted sulphamoyl group and a single SO 3 H or O.SO 3 H group are described. They are prepared condensing a 2-chloronitrobenzene with a pphenylenediamine and when R<SP>2</SP> in the product is hydroxyalkyl, sulphating it. In Example (2) 2-nitrochlorobenzene-4-sulphonychloride is reacted with ethanolamine to give 2-nitrochlorobenzene-4-sulphonethanol-amide which is condensed with p-phenylenediamine in 50% EtOH followed by sulphation of the 2-nitro-4<SP>1</SP>- amino - diphenylamine - 4 - sulphonethanolamide. Further compounds are specified in the Examples.
Patent GB-1218055-A (GB)
Title: Selecting device for football pools
Inventor: SWAMI TIRUCHENGODU KRISHNASWAM
IPC: G07C15/00
Filed: 1970-02-17
Abstract: 1,218,055. Chance selecting device. T. K. R. SWAMI. 17 Feb., 1970, No. 47743/68. Heading A6H. A selecting device consists of a freely rotatable and suitably supported 'barrel with a mouth at the side through which numbered spheres are introduced, the mouth being securly covered with a removable, spill proof lid that has a hole to which is fitted a rotatable, weighted cradle into which falls only one sphere when the barrel is rotated on its axis. The cradle is made of metal weighted with lead and the remainder of the apparatus may be made of polythene.
Patent GB-1094129-A (GB)
Title: Millivolt drop indicator
IPC: H02H3/087
Filed: 1964-11-25
Abstract: 1,094,129. Switching circuits. W. CHRISTENSEN. Nov. 25, 1964, No. 47917/64. Heading H3T. [Also in Divisions G1 and G3] A millivolt meter M used to measure the potential drop across a constant-current energized test load is protected against overload by a circuit which switches off the current supply when the meter is over-loaded but which restores the current supply if the overlead clears. The load under test is connected between the terminals J-1 and J-2 and supplied with current by a D.C. power supply circuit I which is regulated for both line and load variations so that the current supplied to the load (metered by ammeter A) is substantially constant. In the current supply lead is a power transistor Q-3 which functions as the overload protection switch. In use, the meter M is connected across the test load by linking terminals J-1 to J-3 and J-2 to J-4, so that the meter M effectively monitors resistance changes in the test load. Associated with the meter M is a chopper circuit including a multivibrator constituted by the transistor Q-10 and its associated components. The output of this circuit, fed to transformer T-3 is a square-wave A.C. whose amplitude is controlled by the voltage across the meter M. In each cycle of the square-wave a pulse is fed to the controlled rectifier SCR-1, and in the event of meter overload the pulse amplitude becomes sufficient to fire this controlled rectifier. When this occurs, a signal, amplified by a transistor Q-11, is fed to a transistor Q-7 and so unbalances a bridge consisting of the latter transistor and resistors R-14, R-15 and R-16. The unbalanced bridge output biases the power transistor Q-3 in the load current line to cut-off, and thereby switches off the current. After a time governed by the time constant of resistor R-26 and capacitor C-5, SCR-1 will reset to restore balance to the bridge and current to the load. If the test resistance is still such as to overload the meter M, the above described response is repeated; if not, the test circuit returns to normal operation.
Patent GB-1159716-A (GB)
Title: Improvements relating to Castors
Inventor: SCREEN STAFFORD THOMAS
IPC: B60B33/02
Filed: 1966-10-26
Abstract: 1,159,716. Castors. BRITISH CASTORS Ltd. 24 Oct., 1967 [26 Oct., 1966], No. 48004/66 Heading A4U. [Also in Division F2] A castor is lockable against rolling and swivelling by a conical braking member 16 which is axially movable along the swivelling axis to engage an annular braking surface 23 with the wheel rim without vertical movement of the wheel 15 relatively to the article of furniture supported. The member 16 is slidable on a sleeve 17 which is rotated by a handle 26 between collars 18, 19 secured to a furniture leg 11, the member 16 being prevented from rotation and, hence, locking against swivelling by engagement of a rib 21 in a groove 20 in the colar 19 and having a pin 24 which projects into an inclined slot 25 in the sleeve to guide upward and downward movement of the member 16. The slot has horizontal end portions for locking the braking member in on and off positions. In modifications the sleeve is omitted, the braking member is moved by a cam rotated by a lever and having a cam face co-operating with the upper end of the braking member, or a conical braking member is moved relatively to a sleeve by the inner member of a Bowden cable which is bolted to the lower collar, the sheath of the cable being secured to the braking member and descent of the braking member being against the action of coil springs. In a further modification, forming an assembled unit for mounting on a furniture leg, the sleeve comprises a fixed inner cylindrical member and an outer cylindrical member rotatable relatively thereto, the pin 24 being replaced by split sleeves inserted, while compressed, in apertures in a plastics braking member.
Patent GB-1314919-A (GB)
Title: Hydroxyhalogenbenzolsulphonanilide
IPC: C11D3/00
Filed: 1971-10-15
Abstract: 1314919 Hydroxyhalobenzenesulphonanilides L GIVAUDAN & CIE SA 15 Oct 1971 [15 Oct 1970] 48116/71 Heading C2C Novel compounds (I) where X is Cl or Br, a is 1 to 3, Y is halogen, b is 1 to 4, Z is CF 3 , -SON, NO 2 , alkyl, alkoxy or alkylthio, c is 0 or 1 and the total number of substituents (X, Y and Z) is at least 4, except when all the substituents are exclusively Br, then the total number of substituents is at least 3, are made by reacting the appropriate sulphonyl halide (II) with the appropriate aniline; the OH group in (II) can be etherified or esterified, in which case the free OH group is subsequently liberated to give (I). Antibacterial and antifungal compositions, especially active against gram positive bacteria contain (I) as active ingredient; (I) can also be used in the presence of soaps and anionic surfactants and the antimicrobial effect is retained.
Patent GB-967868-A (GB)
Title: Apparatus for collecting the blood of animals
Inventor: CHEVALLIER FRANCOIS
IPC: A22B3/08
Filed: 1962-12-20
Abstract: 967,868. Guillotines. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 20, 1962 [Dec. 20, 1961], No. 48123/62. Heading A5R. An apparatus for collecting the blood of a laboratory animal, such as a rat, comprises a base 1 having, in its upper surface, a trough 3 to receive the body of the animal, a blade 7 pivoted to the base, in the manner of a guillotine, the blade having a suitably placed aperture associated with a collecting device 10. After the head has been severed the blood passes into the container 10 from which it is drained through an outlet 13 into a suitable receptacle. The blade assembly may have a counter-weight 9 and a stop 14, to limit the downward movement of the blade, may be attached to the base 1.
Patent GB-1481200-A (GB)
Title: Mechanical writing instrument
IPC: B43K29/00
Filed: 1974-11-08
Abstract: 1481200 Writing appliances N A ZEPELL 8 Nov 1974 [20 Nov 1973] 48384/74 Heading B6P Two ball-point refills 114, 116 (or other writing instruments) are contained in a flatsection, tapered body with a single point opening, through which either refill can be made to protrude by action of a protruding manually operated actuating means 162, 162<SP>1</SP>. Each actuating means slides in a slot in the body edge. The refills are locked by spring-loaded pawls 164, 164<SP>1</SP>, which co-operate with the actuating means so that an advanced refill is locked by the pawl of the other. Inward movement of the actuating means 162<SP>1</SP>, to unlock it before advancing its refill, withdraws pawl 164<SP>1</SP> from actuating means 162, and allows spring 166 to retract it.
Patent GB-1060679-A (GB)
Title: Controlled xerographic development
IPC: G03G15/30
Filed: 1964-11-30
Abstract: 1,060,679. Electrophotographic processes. RANK XEROX Ltd. Nov. 30, 1964 [Dec. 9, 1963], No. 48603/64. Heading G2H. An insulating donor member which is known to be effective in the development of line images can be used for developing solid areas by applying a corona discharge at the rear of the donor member to dissipate charge at its developer bearing surface. Preferably, a corona electrode is used which emits equal amounts of negative and positive corona. A D. C. bias may however be applied for reversal development. A single corona electrode may be supplied with A. C. Figs. 2 and 3 (not shown) or alternate electrode wires 70-73 may be of opposite polarity Fig. 1, Fig. 4 ( not shown). As shown an endless flexible belt 50 of a fluorinated vinyl compound, polyethylene terephthalate or polyethylene is loaded with two component powder developer 58 from hopper 57 and moves along the photo-conductive electrostatic image bearing layer 12 of metal, glass or paper drum 10. Belt 50 may be stationary relatively to layer 12 while presenting developer to it or, alternatively, it may move faster to slide over the layer. The developed image is transferred at 31 under the influence of a corona electrode 34 and fixed by heating at 35. The layer 12 is cleaned by brush 42 and is charged and exposed in the usual way.
Patent GB-1361664-A (GB)
Title: Production of aerosols
IPC: B01F3/04
Filed: 1972-07-27
Abstract: 1361664 Producing aerosols CONCEPT ENG Ltd 27 July 1972 [19 Oct 1971] 48623/71 Heading F3C An apparatus for producing a light-dispersing aerosol comprises a capillary tube 4 through which in use a mixture of high boiling point oil and a non-inflammable gas passes, at least part of the tube having a high electrical resistance such that when the tube is connected in an electrical circuit by means of connections 6 the at least part of the tube heats up to heat the oil and gas mixture and so produces the aerosol. A low voltage D.C. source 9 is used as the power supply and this is connected into the circuit through a relay 8. The oil and gas mixture is produced by passing pressurized gas through a gas inlet aperture in an oil outlet pipe 3 of an oil tank 1, the pressurized gas flow being controlled by a valve which is also actuated on operation of the relay 8. The tube 4 ends in a nozzle 5. The oil outlet pipe 3 may pass through an extension of the top of the oil tank in which case the gas outlet aperture is positioned within the extension.
Patent GB-1446455-A (GB)
Title: Semiconductor memory cells
IPC: G11C11/405
Filed: 1973-10-22
Abstract: 1446455 Memory cells HITACHI Ltd 22 Oct 1973 [20 Oct 1972 17 Sept 1973] 49007/73 Heading H3T A memory cell comprises a read transistor Q1, a write transistor Q2 having their control electrodes connected together to a read/write select line RW, and one each of their main electrodes connected together to a sense digit line S, a storage transistor Q3 having its control electrode connected to the remaining electrode of Q2, one of its main electrodes connected to the remaining electrode of Q1 and the other to a reference potential, the threshold voltage of the write transistor Q2 being fixedly greater than that of the other transistors Q1, Q3. In operation, the select line has an intermediary voltage at which the write transistor Q2 is off and a high voltage level present on the sense line S is altered or unaltered depending upon the presence of a "1" or a "0" at the storage transistor. For writing in, the select line voltage is increased to render Q2 conducting and the charge stored is adjusted to correspond to the level of the write voltage introduced on line S by transistor Q0. In order that the charge stored be not destroyed during read-out as well as to reduce the read-out time the threshold voltage of Q2 is increasable up to a maximum limit at which the charge stored voltage Vs remains at a constant level when the voltage applied to the read/write select line during a writing cycle is approximately equal to the sense line supply voltage V DD . Reference is made under section 9 to Specifications 1,338,856 and 1,292,265. Reference has been directed by the Comptroller to Specifications 1,338,856 and 1,292,265.
Patent GB-1067194-A (GB)
Title: Improvements in or relating to rotary feeders
IPC: F23K3/00
Filed: 1963-10-10
Abstract: 1,067,194. Pneumatic conveyers. KOPPERS CO. Inc. Oct. 10, 1963 [Oct. 17, 1962; April 4, 1963; May 21, 1963], No. 49021/66. Divided out of 1,067,191. Heading B8A. The subject-matter of this Specification is disclosed in Specification 1,067,191.
Patent GB-1458606-A (GB)
Title: Investment casting method
IPC: B22D25/02
Filed: 1974-11-13
Abstract: 1458606 Investment casting mould KUBOTA Ltd 13 Nov 1974 [13 Nov 1973 19 March 1974] 49157/74 Heading B5A A refractory mould of one-piece construction is made by preparing a thermally fusible pattern from naphthalene and/or p-dichlorobenzene with or without the addition of at least one polymer having a vinyl radical, which pattern is a substantial replica of a desired casting to be made by use of the mould; subsequently forming a refractory investment enveloping the thermally fusible pattern; contacting the pattern with the vapour of an organic solvent thereby melting the thermally fusible pattern so as to leave the refractory investment with a cavity which has been occupied by the pattern and heating the refractory investment to remove all the residue of the fusible pattern and provide a rigid ceramic mould.
Patent GB-1133099-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D17/02
Filed: 1964-12-07
Abstract: 1,133,099. Advancing mine-roof supports. K. M. GROETSCHEL. 7 Dec., 1965 [7 Dec., 1964; 3 Aug., 19651, Nos. 49739/64 and 51121/65. Heading E1E. In an advancing mine roof support comprising a series of props mounted on a base and supporting one part of the superstructure and in which a further prop 61 supports another part of the superstructure the prop 61 is adapted to be moved forwardly along a slot 60 formed in the base upon operation of traction means to provide a forward support to the superstructure as a whole whilst the base remains stationary. The traction means consist of a hydraulic ram pivoted at one end to a seating for a forward prop and secured at its other end to the superstructure which has sliding engagement with the seating, see Fig. 5 (not shown). Additional traction means 78, 80, 81 having a pair of laterally spaced slide bars 83 are also provided in the base for producing controlled advancement thereof as set out in Specifications 1037914 and 1037916. The prop 61 is supported from the superstructure by retraction springs, see Fig. 4 (not shown). For details of operation of forepoling arms employed and prop and superstructure details Specifications 983551, 1037911, 1037913, 1037914, 1037917 and 1037919 should be referred to. The base is provided with rubber seals 29 for the rams 78 and a shield 73 having reinforcements 75, 75a of which the former 75 is curved at 76 to accommodate the prop 61. In a modification, Figs. 8, 9 and 10 (not shown), two base elements are employed and the traction means in the base incorporates a chain or wire rope collecting element. For other minor details and mode of operation the Specification should be referred to.
Patent GB-1441319-A (GB)
Title: Apparatus for casting metal strips
IPC: B22D25/04
Filed: 1973-10-26
Abstract: 1441319 Continuous casting COMINCO Ltd 26 Oct 1973 [31 Oct 1972] 49873/73 Heading B3F Molten metal, such as Pb-Ca, Pb-Li or Pb-Ca-Sn alloy prepared and protected by nitrogen or floating reductant in a reservoir 1, is maintained in a pool, at the surface of a rotating drum 23 which withdraws a sheet 24 of the solidified metal, by a trough 5 to which metal is introduced (by a pump 3) and from which excess metal is returned (by a pipe 20) after discharge over adjacent weirs 17, 18 at the ends of a holding section 6 and a casting section 7 respectively, the weirs being adjustable to determine their relative heights; a channel 8 beneath the weirs connects the two sections and a baffle 11 (with holes 29) evens the distribution of metal across the holding section 6 while there is an immersed baffle 28 by which argon can be retained in a chamber 30 over the holding section 6 and weirs 18, 19. A baffle 12 causes downflow and an inclined baffle 13 directs dross and surging metal over the weir 17. Gas bubbles rising from the end 22 of the plate 21 which defines the top of the channel 8 are passed by a baffle 31 to the chamber 30 or by an alternative baffle 311 towards the end of casting section 7. Plate 21, forming a unit 14 with weirs 17, 18 and a return conduit 20, may be raised or lowered to control the flow to the casting section. After casting starts the section 7 may be covered. The drum 23 is internally water-cooled.
Patent GB-1484015-A (GB)
Title: Electrodes for electro-chemical processes
IPC: C25B11/04
Filed: 1973-10-26
Abstract: 1484015 Coated products IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Oct 1974 [26 Oct 1973 11 Feb 1976] 49898/73 and 06175/74 Addition to 1402414 Heading B2E [Also in Divisions C7 and H1] An electrode for electrochemical processes e.g. anode in mercury cathode cell electrolyzing alkali metal chloride solution, fuel cell electrocatalysis, electrosynthesis and cathodic protection comprises a film-forming metal (Ti, Ta, Zr, Nb, W) or alloy support coated with an electrocatalytic, conducting matrix in which is embedded a non-conducting particulate or fibrous refractory material selected from oxides (other than those claimed and/or described in specification 1402414) e.g. Ce or Hf oxide, Ta 2 O 5 , Mg or Ca aluminate (spinel), Zr or Ca silicate (bellite), Ca titanate (perovskite) or zirconate, attapulgite, kaolinite, asbestos, mica, cordierite or bentonite; carbides; sulphides e.g. Ce 2 S 3 ; nitrides e.g. of B or Si; and fluorides e.g. CaF 2 . The refractory material is preferably a mixture of ZrSiO 4  particles and ZrO 2  fibres. Particles may be in the size range 0.05 to 200 microns; fibres may be up to 1 mm length. The matrix may comprise at least one Pt group metal and/or oxide with or without non-noble metal (e.g. Ti, Zr, Nb, Ta, W, Sn, Ge or Sb) oxide, e.g. (a) RuO 2  and 50 to 75% TiO 2 , or (b) a mixture of 27 to 45% RuO 2 , 26 to 50% TiO 2  and 5 to 48% SnO 2 . A chlorine discharge catalyst e.g. MnF 2  may be admixed in a matrix of SnO 2 , GeO 2  and/or Sb oxide. The coating may be formed on the cleaned and/or etched surface of the support by spraying thereon at least one layer of a paint composition comprising thermally-decomposable compounds of each metal to feature in the finished coating in a liquid vehicle, e.g. RuCl 3  dissolved in n-pentanol with tetra n-butyl orthotitanate, drying the paint layer by evaporating the vehicle and firing at 250 to 800‹C to form the matrix, e.g. of Ru+TiO 2 . The refractory particles or fibres, e.g. ZrSiO 4  may be mixed into the paint composition before applying or whilst still in fluid state on the support surface. A plurality of layers may be applied, each dried and fired as above. Specifications 1445331, 1425934 and 1360197 are referred to.
Patent GB-1104295-A (GB)
Title: Improvements in or relating to pistons
Inventor: KEMP ERIC HUGH
IPC: F16J1/00
Filed: 1963-12-18
Abstract: 1,104,295. Pistons. PERKINS ENGINES Ltd. 17 Dec., 1964 [18 Dec., 1963], No. 49909/63. Heading F2T. [Also in Division B3] A metallic wear-resisting insert 17 originally in the form of a conical washer is flattened and clamped against a side wall of a piston ring groove 16 by deforming the metal of the bottom of the groove. In the embodiment described the piston 15 is of aluminium alloy and the insert 17 is originally a dished split steel washer which is sprung into a recess 18 in the groove 16 and then flattened and secured by deforming the groove bottom by a rolling process so that it takes the shape shown in Fig. 5. The deformation is made by a disc roller which is inserted in the groove with a peripheral edge pressed against the groove bottom and the piston is then rotated about its axis causing the roller also to rotate. Alternatively, the deformation may be effected by a burnishing bar disposed radially of the piston as the latter is rotated or by a pair of semi-circular discs brought together under pressure as the piston is rotated. The insert may have an annular ridge over which the metal is deformed. A further insert may be similarly located against the other side wall of the groove.