baber/WOPTO huggingface dataset:
Patent GB-199607-A (GB)
Title: Process for manufacturing pure sodium chloride
IPC: C01D3/16
Filed: 1922-06-28
Abstract: Brine is purified by adding a reagent consisting of two molecular proportions of di-sodium phosphate to one of sodium carbonate so as to remove calcium and magnesium as phosphates and then barium chloride to remove the sodium sulphate.  The reagents are preferably added while the solution is boiling with agitation.  The mixed precipitate of phosphates and barium sulphate may be used as a white pigment, or the phosphates may be used to make di-sodium phosphate and the barium sulphate be used as a pigment.  The purified brine may be evaporated to complete dryness.  When the salt is to be used for certain purposes, such as the production of sodium sulphate, silicate, or phosphate, the treatment with barium chloride may be omitted, and the salt will then contain sodium sulphate.
Patent GB-634589-A (GB)
Title: An improved means for fixing knife edges in levers
IPC: G01G21/08
Filed: 1947-07-05
Abstract: 634,589. Knife-edge bearings. AVERY, Ltd., W. & T., and HILL, T. B. July 5, 1947, No. 17794. [Class 12 (i)] A knife edge 3 is mounted in a weigh beam or other lever 5 by means of a block 6 which is secured in a recess 3a by screws 7, said block 6 having a nib 6a whose edge registers with and is inclined to the knife edge face line and cooperates with the side face of the knife edge rest (not shown) to limit lateral movement of the beam with a minimum of friction. Shims 8 may be inserted between the top of the knife edge and the recess 4 for adjustment of the face line. In a modification, the knife edge projects from both sides of the beam and the block 6 has two nibs. In a further modification, any edge may be used as the bearing surface by adapting every edge to contain the block 6.
Patent GB-973371-A (GB)
Title: Insulated electric conductors
Inventor: WILBRAHAM PAXTON DUFFIELD
IPC: B29C44/20
Filed: 1962-05-09
Abstract: 973,371. Cables. STANDARD TELEPHONES & CABLES Ltd. May 3, 1963 [May 9, 1962], No. 17857/62. Heading H1A. A coaxial cable is manufactured by sticking granular material on to one surface of a metal tape which is then wrapped around the inner conductor with the granulated material inside and which subsequently acts as the outer conductor. As shown in Fig. 1, a copper tape 1 is led from a reel 2 through rollers 3 and 4 which coat one surface of the tape with a sticky solution of polystyrene (or polyisobutylene) in benzene. A controlled feed supply hopper 7 deposits pre-expanded granules of polystyrene or P.T.F.E. on the sticky surface and the metal tape is then passed through a drying oven before it is folded round a copper wire 9 as it passes through a forming die 11. The completed cable is then collected on take-up drum 13. A further embodiment is described in which the completed cable having polystyrene insulation is passed through a steam, infra-red or hot air oven where the granules undergo further expansion and coalesce to give a homogeneous dielectric. The granules may be of bead or ball shape and the granular insulating material may be caused to adhere to the metal tape by electrostatic attraction.
Patent GB-463300-A (GB)
Title: Process of imparting hydrophobic properties to cellulose fibres
IPC: D06M13/432
Filed: 1935-06-21
Abstract: Artificial cellulosic textile materials are rendered capable of repelling water by incorporating in the spinning solution a urea derivative or an aliphatic carboxylic acid amide containing an alkyl radicle of at least 11 carbon atoms, and then condensing the derivative with an aliphatic aldehyde.  The necessary condensation is effected by heating the materials charged with the urea &c. derivative to, for example, 100--140 DEG  C., if desired, in an acid or alkaline medium.  As an alternative, the condensation product of the urea &c. derivative and the aldehyde may be added to the spinning solution, and the subsequent heating carried out with or without the presence of aldehyde.  The process may also be adapted to the treatment of cellulosic textiles.  The aldehyde may be used as a solution, or in the vapour phase, in which latter case the heating step may be carried out simultaneously.  The following are suitable derivatives: lauric acid amide; stearoyl-methylamide, -butylamide and -octadecylamide; monododecylurea; monoctadecylurea; stearoylurea.  In examples, the following media are used: a pyridine solution of octadecyl-heptadecylurea; an emulsion of stearinamide containing formaldehyde and preferably lactic acid, the emulsifying agent being the reaction product of ethylene oxide and octadecenyl alcohol; a pyridine solution of methylolstearinamide; a carbon-tetrachloride solution of methylol-stearinamide, and afterwards a lactic acid solution; a lactic or glycollic acid solution, followed by a carbon-tetrachloride solution of the condensation product of montanic acid amide and formaldehyde; a methylenechloride solution of carbamic acid octadecyl ester.ALSO:To produce an emulsion of stearinamide there is used as the emulsifying agent the reaction product of ethylene oxide and octadecenyl alcohol.  The emulsion also contains formaldehyde and lactic acid.
Patent GB-937196-A (GB)
Title: An improved method and apparatus for forming plastic articles
IPC: B29C49/48
Filed: 1959-10-06
Abstract: 937,196. Blow-moulding machines. OWENS-ILLINOIS GLASS CO. Oct. 6, 1959 [Oct. 6, 1958; Oct. 16, 1958; Jan. 8, 1959; Jan. 30, 1959], No. 17919/63. Divided out of 937,195. Class 87(2). A continuously extruded tube is grasped by elements 70, severed by a knife 37 and moved by the elements 70 over a blowing head 73. Either prior to or after the insertion of the head 73, the mould halves 45 are closed. After blowing, the moulds may be moved laterally to sever the bottom 33 of the tube from the blown article. The mould halves may first be partly closed to guide the upper part of the tube. It is stated that the grasping of the tube by the elements 70 prior to closing of the mould relieves stresses in the material as described in Specification 937,195. In a modification, Fig. 7, the extrusion head 40 is provided with a vertically reciprocable blowing head 83. Specification 937,197 also is referred to.
Patent GB-1488724-A (GB)
Title: Delayed release nutrients for mushroom culture
IPC: A01G1/04
Filed: 1975-04-30
Abstract: 1488724 Compost bed for mushrooms RESEARCH CORP 30 April 1975 [21 May 1974] 17937/75 Heading ClB Denatured protein is mixed into compost in which mushrooms are to be grown at a time between spawning and uniform establishment of mycelium in the compost. Preferably 0À5-2 lbs. protein are used per 4 sq. ft. of area of a bed whose depth is 5 ins. Preferred proteins are cottonseed or soybean meal, which may be mixed with vegetable or fish oil and denaturing may be performed after mixing with the oil.
Patent GB-1086835-A (GB)
Title: Copy counting
IPC: G06M3/02
Filed: 1966-04-25
Abstract: 1086835 Counting copies made in xerographic apparatus RANK XEROX Ltd 25 April 1966 [29 April 1965] 17939/66 Headings G4D D6Y and D6H In an apparatus for counting the number of copies produced by a copying machine especially a xerographic copying machine counters (MC-3), (MC-2) and (MC-1) Fig. 1 (not shown) are provided for counting, e.g. all the copies made, the first five copies made, and the second five copies made respectively so that a differential charge may be made in respect of the number of copies made. A programmer (50) Fig. 2 (not shown) controls copy-scanning, paper feed and removal, and supplies a pulse to a counting coil 5TR, Fig. 4, of a stepping switch for each copy. Each energization of counting coil 5TR attracts an actuator 804, such that an arm 814 engages a ratchet wheel 816 to rotate contact arm (832) Fig. 6 (not shown) one step. A reset coil STR, Fig. 4 resets the stepper switch after a particular document has been copied the required number of times. The xerographic machine has known charging, exposure, developing and transfer stations.
Patent GB-241639-A (GB)
Title: Improvements in or relating to wardrobes or other articles of furniture
IPC: A47B61/00
Filed: 1924-07-28
Abstract: 241,639. Norman, F. G. July 28, 1924. Dressing-tables.- A dressing-table constructed of superimposed sections has horizontal frames round the periphery of the engaging faces, to which frames the side walls are secured. The construction is shown in Fig. 1 as applied to a wardrobe, the frames being rebated at their outer edges B<20>, B<30> to receive lining slips C<2>, A' secured to the adjacent sections.
Patent GB-1043135-A (GB)
Title: Vehicle steering gear
IPC: B62D5/24
Filed: 1964-04-30
Abstract: 1,043,135. Motor vehicle steering mechanisms. ROSS GEAR & TOOL CO. Inc. April 30, 1964 [May 6, 1963], No. 17956/64. Heading B7H. [Also in Division F2] Power-assisted or manuallyoperated steering gear for a motor vehicle includes a cam 19 (Fig. 2) having a helical groove 36 of varying pitch angle engaged by a follower 33 on a sleeve 30 slidable axially of the cam and operatively connected to a steering linkage. The groove 36 in the cam has a central portion of low pitch angle and end portions of greater pitch angle (Fig. 8, not shown). The sleeve 30 is slidable between the cam 19 and a surrounding steering post 17 and has secured thereto a bush 31 which projects through a slot 32 in the post and carries the follower 33 and a ball 34 for connection to a mechanical steering linkage (Fig. 1, not shown) or to a control valve 110 (Fig. 6) within the piston 111 of an hydraulic motor 108 which actuates a pitman arm 109. In another embodiment (Figs. 3, 4, not shown) the groove 51 in the cam is engaged by a follower 52 carried within a piston 42 which actuates a pitman arm 45 by means of rack teeth 43 and a gear sector 44. The input shaft 49 is mounted with provision for limited axial movement under reaction from the cam, which movement is transmitted by a plate 60 and a rocking lever 62 to the stem 64 of a valve spool 63 controlling supply of fluid from a pump 70 to either end of the piston 42. In a further embodiment (Fig. 7, not shown) a torsion bar consisting of the input shaft and the cam permits relative rotation which results in displacement of a sliding spool valve carried by a sleeve which rotates with the cam but is displaced axially by a threaded connection with the steering shaft. In yet another embodiment (Fig. 5, not shown) the cam engages a follower carried within a slidable valve sleeve housed in the piston.
Patent GB-1034997-A (GB)
Title: Nuclear reactor
IPC: G21C15/04
Filed: 1965-04-28
Abstract: 1,034,997. Reactors. BROWN BOVERI/ KRUPP REAKTORBAU G.m.b.H. April 28. 1965 [April 28, 1964], No. 17957/65. Heading G6C. A high temperature gas-cooled reactor utilizing particulate spherical fuel arranged in an annular column has cooling gas admitted to the top of the column; hot gas leaves the bottom of the column and passes upwards through the central channel defined by the annulus. The gas preferably passes from the top of the central channel 6 direct to a superheating heat exchanger 3. The reactor is divided by radial concrete portions (10, Fig. 2, not shown) into three compartments. Control and shut-down rods can be housed in passages (14) in the partitions. The separate compartments of the reactor can be operated independently of each other, and some may be power generating whilst others may be breeder sections; when the associated steam plant is lightly loaded, a minimum number of compartments can be left active, the others being shut down. Spent fuel is discharged at 8, and separate discharge shoots may be provided for each compartment. Coolant circulation.-Gas enters at 17, passes down through the fuel column 5, up through centre column 6 in which temperature variations across the flow lines are reduced by crossmixing, over the heat exchanger 3 and thence to the circulator. Some gas enters at 15, is preheated while cooling the shielding 4, pressure vessel 1 and spent fuel 8, and is then mixed with the main inlet gas at 17 via external piping.
Patent GB-798396-A (GB)
Title: Improvements in or relating to manifolding
Inventor: PHILLPOTTS GEORGE CORDERY
IPC: B41M5/132
Filed: 1955-06-22
Abstract: 798,396. Coated paper. CARIBONUM. Ltd., May 9, 1956 [June 22, 1955], No. 18093/55, Class 96. [Also in Groups XV and XVI] In sheet material for use in manifolding which carries on one side a coating of an alkaline substance and a colourless dyestuff ether capable of conversion into the coloured dyestuff on neutralization of the alkali substance by reaction with an acid substance brought into contact therewith by the action of writing on the paper as described in Specification 757,136, there are employed as the colourless dyestuffs compounds of the general formula wherein R<SP>1</SP> is H or a methyl radical, R<SP>11</SP> is the same or different alkyl, aryl, alkaryl or aralkyl radical as in R<SP>1</SP> and R<SP>111</SP> is H or an alkyl radical. As is described in Specification 759,157 a barrier layer may be provided between the paper and the dyestuff coating, the barrier layer containing an opaque white pigment and an oily substance having a refractive index similar to that of the pigment. Specified dyeformers are 4,4<SP>1</SP>-(tetra-ethyl-diamino) diphenyl-carbinol, tetra-propyl-diaminobenzhydrol, tetrabutyldiaminobenzhydrol, Michler's hydrol ethyl ether or the corresponding di-ortho-tolyl holologues, e.g. 2,2<SP>1</SP>-(dimethyl)-4,4<SP>1</SP>-(tetramethyldiamino)- diphenylcarbinol. The barrier layer may consist of coatings of gelatine, methylethyl cellulose, polyvinyl acetate or chloride, chlorinated rubber or cellulose acetate. The opaque pigment is preferably calcium carbonate or blanc fixe and the oil matter may be light mineral oil, oleyl alcohol, dibutyl tartrate, sextol phthalate, diamyl phthalate or dimethyl phthalate. Alkaline substances employed to maintain the dyeformer colourless are carbonates, hydroxides, bicarbonates or phosphates, while the acid substances used to neutralize the alkali are tannic, gallic, lauric, citric, oleic, phthalic, benzoic or stearic acids. In Example (1) bank paper is first coated with a first barrier layer of methyl cellulose, water, caustic soda and triethanolamine and then with a second barrier layer of polyvinyl emulsion in water, triacetin, triethanolamine, gelatine, anhydrous sodium carbonates and water, while the other side is coated with a mixture of shellac, blanc fixe, dibutyl tartrate, tannic acid and methylated spirit. The barrier coating is then overcoated with a mixture of gelatine, calcium carbonate, blanc fixe, sextol phthalate and tetraethyldiamine benzhydrol in mineral oil. Specifications 664,456, 666,450, 700,109, 712,216 and 798,180 also are referred to.
Patent GB-581628-A (GB)
Title: Improvements in or relating to the manufacture of fluorine containing organic compounds
IPC: C07C51/093
Filed: 1944-09-22
Abstract: Trifluoracetic acid is produced by acid hydrolysis of CF3.CCl3, preferably in presence of a mercury sulphate as catalyst. Temperatures and pressures may be about normal or above.  In an example, CF3.CCl3 and a mixture of mercurous and mercuric sulphates are cooled to 0 DEG  C. and oleum containing 65 per cent SO3 added while the temperature rises to slightly above that of the room.  When 83 per cent of the chlorine is hydrolysed, the mixture is decomposed with ice water, barium carbonate added, evaporated to dryness, extrated with alcohol, decomposed with sulphuric acid, and trifluoracetic acid recovered by distillation.
Patent GB-747676-A (GB)
Title: A device for clearing gaps in rows of growing plants
IPC: A01B41/04
Filed: 1953-07-01
Abstract: 747,676. Agricultural implements. PURDY, T. July 1, 1954 [July 1, 1953], No. 18216/53. Class 6 (1). A machine for gapping plants comprises a freely rotatable disc recessed at regular spaced intervals to form digging elements 3, the machine being drawn along a row of growing plants so that the disc lies at an angle to the plants. As shown the disc is mounted on a bracket 13 which is pivoted on an arm 16 adapted to be coupled to a tractor. A foot 19 which rests on the ground is adjustably mounted on the bracket 13. Downward movement of the disc is limited by means of a stop 18 which contacts the underside of the bracket 13.
Patent GB-1036634-A (GB)
Title: Kneader
IPC: B29B7/24
Filed: 1963-05-08
Abstract: 1, 036, 634. Rubber mixers; charging doors. F. W. PASS AND W. PASS [trading as GUMMIWERKE PASS & SOHN]. May 8,1963 [June 14, 1962], No. 18232/63. Heading B1C. In a rubber masticator and mixer of the type having a pair of mixing rotors 11 into a contact with which the material is formed by a ram, not depicted, working in a chamber 13, the charging door 14 which is pivoted on its bottom edge 16 has scraper blades attached to its side edges and co-operating with the sides 17 of the charging shoot to prevent the escape of dust. As shown in Fig. 3 each scraper 19 is positioned at an acute angle to the shoot side 17 and is attached to a bar 22 which is laterally adjustable by means of a screw and locknut 29, 28 so that the blade bears resiliently against the shoot wall. The free space behind the blade is sealed by means of a tubular rubber packing 31 having a lip 32 bearing on the blade.
Patent GB-1535292-A (GB)
Title: Electronic watch
IPC: G04G99/00
Filed: 1976-05-04
Abstract: 1535292 Electronic watches HUGHES AIRCRAFT CO 4 May 1976 [16 June 1975] 18239/76 Heading G3T An electronic watch is constructed generally as in Specification 1,503,950 but its (LED) display and electronic components are mounted directly on flexible printed circuit 28; the latter has at least one battery contact as at 34, 36 and at least one push-button contact as at 38, 40.
Patent GB-673980-A (GB)
Title: Improvements in springing arrangements for furniture
IPC: A47C7/22
Filed: 1949-07-11
Abstract: 673,980. Spring surfaces for chairs &c. ADAMS, A. J., and WICKINS, J. R. Dec. 30, 1949. [July 11, 1949] No. 18280/49. Class 52 (iv). A chair, settee, &c. is provided with a seat suspended in spaced relation between the side main frames by two sets of articulated links at points adjacent the rear corners thereof the front end of the seat being connected pivotally to a transverse yoke pivoted to the side frame members, the articulated links having connected across their pivotal joints a coiled tension spring. As shown the back supporting fabric 4 is connected at one end by springs 5 to the main frame at 6 and at the other end is carried by a yoke 1, 2 pivoted to the frame the movement of the yoke being limited by a slotted stop, 8, 9, 10. The seating surface 20 is likewise carried at the front end by a pivoted yoke 11, 12 but at the rear is connected by links 19 to a tension spring 14 the ends of which are connected to the main frame by links 16. The links 16, 19 could be replaced by springs.
Patent GB-952373-A (GB)
Title: Alloy steel
Inventor: ORNITZ MARTIN N
IPC: C22C38/40
Filed: 1961-05-19
Abstract: A high-temperature alloy steel contains in percentage by weight .C.0.30- 0.90 .Cr.18 -30 .Ni.15 -35 .Mn.0.8 - 4 .Si.0.9 - 3.5 .Fe.balance Use of the alloy for furnace parts is mentioned
Patent GB-183253-A (GB)
Abstract: 183,253. Hutsell, T. A. April 21, 1921. Vaporizers, external. -The admission pipe 25 to a pair of cylinders is bolted to the bottom of the exhaust manifold 35 in order to heat the incoming combustible mixture.
Patent GB-1034931-A (GB)
Title: Dibenzo [a,d]-cycloheptene derivatives
Filed: 1963-05-09
Abstract: The invention comprises compounds of the formulae: <FORM:1034931/C2/1> and <FORM:1034931/C2/2> wherein the dotted line indicates that a single or double bond is present in the 10 (11)-position, R is an alkyl, aryl, aralkyl or alkaryl radical, Z is an oxygen or sulphur atom, each of X and X1 is a hydrogen or halogen atom or a C1- 5 alkyl, C1- 5 alkoxy, C2- 5 alkenyl, C1- 5 haloalkyl, phenyl, substituted phenyl, C1- 4 acyl, C1- 4 haloacyl, C1- 5 alkylsulphonylamino, hydroxyl, C1- 5 haloalkoxy, cyano, carboxy, carbamoyl, (C1- 5 alkyl) carbamoyl, di-(C1- 5 alkyl) carbamoyl, (C1- 5 alkoxy) carbonyl, mercapto, C1- 5 alkylmercapto, C1- 5 haloalkylmercapto, C1- 5 alkylsulphonyl, C1- 5 haloalkylsulphonyl, sulphamoyl, C1- 5 alkylsulphamoyl or di-(C1- 5 alkyl) sulphamoyl radical, and more than one substituent may be on each benzenoid ring; a process for their preparation comprising reacting a compound of the formulaae:  <FORM:1034931/C2/3> and <FORM:1034931/C2/4> with a compound of the formula RZCOX11 wherein X11 is a halogen atom; and a process for the preparation of a compound of the formulaae: <FORM:1034931/C2/5> and <FORM:1034931/C2/6> by hydrolysing a compound of the invention.
Patent GB-497099-A (GB)
Title: Improvements in furnace roofs, walls and the like
IPC: F27D1/02
Filed: 1937-07-02
Abstract: 497,099. Furnace roofs &c. BOWER, W. G., and CLEWORTH & CO., Ltd., A. B. July 2, 1937, Nos. 18457 and 20448. [Classes 51 (i) and 51 (ii)] In a suspended brick roof or arch of the kind described in Specification 330,326, [Class 51 (ii)], in which pairs of blocks c<1>, c<2> having inclined bearing-surfaces arc maintained in contact with supporting-members b by key blocks e, the blocks are formed with matching grooves for the reception of fireclay &c., the setting of which forms continuous and homogoueous fillets making the blocks intersupporting. The blocks c<1> and c<2> are of different widths, and by setting them alternately on opposite sides of the key blocks the joints in one direction are staggered. The contacting faces of the blocks e with the blocks c<1>, c<2> are preferably ungrooved, and the grooved faces of the blocks c<1>, c<2> may be stepped as at g.
Patent GB-1177286-A (GB)
Title: Oscillator
Inventor: JEZIERSKI EUGENIUSZ CZESLAW JA
IPC: H03B5/36
Filed: 1967-04-21
Abstract: 1,177,286. Crystal controlled semi-conductor oscillators. STANDARD TELEPHONES & CABLES Ltd. 21 April, 1967, No. 18472/67. Heading H3T. In a crystal controlled oscillator having at least two semi-conductor devices TR1, TR2 with a feedback circuit connected between them, a crystal X1 is connected to the circuit so as to restrict the generated oscillation, to a selectable harmonic of the fundamental frequency of the crystal. The transistors TR1 and TR2 operate as a relaxation oscillator when points 2 and 11 are connected so that by arranging the oscillation frequency determined by the feedback network R5, C2 and R7 to equal the series resonant frequency of the crystal when operating at a harmonic these points are effectively joined. Further crystals may be selectively switched across the input to transistor TR1 by diode switching circuits connected in series with each crystal (Fig. 3, not shown). The frequency of the crystal may be synchronized to that of the oscillator by varying the bias current applied to transistor TR1 by applying a varying voltage or varying the frequency of the oscillator by adjusting the value-of C2. Coarse frequency control may be effected by connecting a transistor (TR3) in parallel with the emitter circuit of transistor TR2 (Fig. 4, not shown) and fine frequency control may be obtained by connecting capacitors (C31, C32) and a controllable diode (D30) across C2. . .