baber/WOPTO huggingface dataset:
Patent GB-554426-A (GB)
Title: Regulation of repeater gain
IPC: H04B3/10
Filed: 1942-05-01
Abstract: 554,426. Repeater systems. STANDARD TELEPHONES & CABLES, Ltd. May 1, 1942, No. 5883. Convention date, Feb. 5, 1941. [Class 40 (iv)] In a transmission system involving a large number of repeaters, e.g. for television or multiplex telephony, in which the gain is controlled by a pilot current, the initial rate of response of a repeater to a sudden change in the pilot current exceeds the mean rate of response by an amount which depends on the rate of change of that current. As shown in Fig. 3, for example, the gain of a repeater R is controlled by a thermistor 10 heated by alternating current amplified by a tube 13 the gain of which is controlled by the voltage developed across a resistance R <SP>2</SP> by rectifying pilot currents at 20. Normally the voltage across R<SP>2</SP> is a fixed fraction of the total voltage developed across R' and R<SP>2</SP> but, owing to the charging or discharging of condenser C', when the pilot current is changing rapidly the effect of the charge on the voltage across R<SP>2</SP> is exaggerated. In another arrangement, Fig. 5 (not shown), an inductance is used instead of a condenser to give the same effect. In modification, Fig. 7, a relay contact 41 is kept in continuous vibration from one contact 47 to the other 47<SP>1</SP> under control of a local oscillator, pausing on these contacts for periods which depend on the value of rectified pilot current in a winding 42 and so controlling the average bias and therefore the gain of a tube 50 and the value of heating current supplied to a gain controlling thermistor 10. As in the arrangement previously described, a sudden change in pilot current produces a greater initial change of gain than a more gradual change of the same extent owing to the effect of condenser C<SP>1</SP> in parallel with resistance R<SP>1</SP>. The relay may control the heating of the thermistor directly. The Specification as open to inspection under Sect. 91 comprises also a system, Fig. 7 (Cancelled) (not shown), resembling that shown in Fig. 7 but without the circuit C<SP>1</SP>, R<SP>I</SP> and a relay construction, Fig. 8 (Cancelled). This relay comprises an arm 41 controlled like a galvanometer needle by a coil 42 and carrying at its end a small permanent magnet 45 in the space between the pole pieces of a C-shaped member of soft iron. These pole pieces are insulated and plated and act as contacts. A winding 43 is fed with current in a direction to repel the magnet 45 from both pole pieces. This subject-matter does not appear in the Specification as accepted.
Patent GB-696872-A (GB)
Title: Improvements relating to chairs and the like
IPC: A47C7/62
Filed: 1952-03-06
Abstract: 696,872. Furniture combinations. GREAVES & THOMAS, Ltd., and CORNELL, W. J. Jan. 1, 1953 [March 6, 1952], No. 5897/52. Class 52(iii) In an easy chair having side arms one or both have drawer means adapted on the displacement of the arm relatively to the chair to be moved to an exposed position. As shown the arm 1 is mounted on or formed integral with a slide 3 forming part of a drawer which is adapted to be slid under the seat by means of co-operat-- ing slides 6 and guides 5. The drawer is provided with receptacles 8 formed by partitions 9.
Patent GB-724434-A (GB)
Title: Improvements in or relating to folding chairs
IPC: A47C4/32
Filed: 1953-03-04
Abstract: 724,434. Seats. MOSS, 1. D. F. March 4, 1953, No. 5995/53. Class 52 (2). A folding chair comprises two side X-frames 16, 18, 17, 19 each pivoted at its point of intersection 20 and at the rear to an upright 1 or 2, the two uprights 1, 2 being parallel when the chair is erected and strutted by a pivoted X- frame 3, 4, the upper ends of the members 3, 4 being provided with links 6 prolonging the members 3, 4 and pivoted to the parallel uprights 1, 2. The front uprights 13, 14 are pivoted to the forward ends of the members 16, 17 and are connected to the forward ends of the members 18, 19 by links 25, 26, the uprights 13, 14 abutting on to the forward ends of the members 18, 19 when the chair is in erected position. The upper ends of the members 18, 19 are linked to the rear uprights by arm rests 21, 22 and the front uprights 13, 14 are strutted by a X-frame 27, 28. The chair is provided with a flexible combined seat and back connected to the front of the side frames and to the top of the rear uprights 1, 2. The chair can be folded into a. bundle with the members of the frame located close to one another.
Patent GB-100714-A (GB)
Title: An Improved Dry Battery.
Inventor: BAUMANN FERDINAND PAUL
IPC: H01M6/48
Filed: 1916-04-27
Abstract: 100,714. Baumann, F. P. Feb. 4, 1916, [Convontion date]. Addition to 100,086. Connexions to carbons; electrodes. -The positive electrodes a of batteries having a paste electrolyte e as described in the parent Specification, in. stead of being covered on one side with wire netting, are covered with a continuous thin layer of good conducting-material g, such as copper deposited electrolytically. The metal layer g ensures good contact between the carbon and zinc electrodes a, h of adjacent pairs of elements.
Patent GB-703637-A (GB)
Title: Improvements in or relating to the hot-shaping of workpieces manufactured from iron and steel
IPC: B23P25/00
Filed: 1951-03-13
Abstract: 703,637. Making seamless tubes, boiler drums &c. WESTDEUTSCHE MANNESMANNROHREN AKT.-GES. March 13, 1951 [March 13, 1950], No. 6062/51. Class 83 (2) Forging.-In a method of forging hollow workpieces such as seamless tubes, boiler drums &c., surface defects are avoided by subjecting the parts which are already locally heated for bending, flanging, drawing or other swarfless shaping operations to a mechanical chip-removing surface working such as milling, grinding or filing.
Patent GB-627420-A (GB)
Title: Improvements in and relating to pasteurisers
IPC: A23L3/16
Filed: 1947-03-04
Abstract: 627,420. Sterilizing liquids. ATACK, P. March 4, 1947, No. 6102. [Class 49] [Also ir. Group II and XIII] In a pasteurize] having an electrically driven stirrer 22, an open-toppec boiling vessel 1 with a removable lid 10 and surrounded by a concentric circular water jacket 3, a concentric circular flue chamber 4, provided with baffles 15 around the jacket and a laminated insulated outer casing 7, the stirrer shaft 21 passes into the boiling vessel through the side wall clear of the lid which may thus fit tightly, leaving no apertures for loss of heat. The heating may be by gas or electricity and in the former case the bottom wall 3a of the water jacket 3 is studded the studs 14 extending from the flame area almost to the wall of the boiling vessel 1, the flue gases passing through the flue chamber 4 and escaping at the top.
Patent GB-764790-A (GB)
Title: Method of jointing roof and/or floor structure consisting of light-weight concrete slabs
IPC: E04B1/41
Filed: 1955-03-03
Abstract: 764,790. Roofs; floors. INTERNATIONELLA SIPOREX AKTIEBOLAG. March 3, 1955 [March 15, 1954], No. 6256/55. Class 20(4) Roofs and floors comprising light-weight concrete slabs 3 bridging a distance between supporting walls 1 or girders 2 have sheet metal parts 5 providing a jointed connection between the slabs capable of transmitting stresses. The parts are driven into the joint 4 in a plane transverse to it and at an angle of 45 degrees. Most and preferably all the parts on one side of a centre line 6 slope in the same direction and opposite to that of the parts on the other side of the line. They may be flat, rounded or wave-shaped, with bent, thickened or flanged lateral edges, and slightly pointed. The distance between adjacent parts increases with the distance from the centre line.
Patent GB-1140223-A (GB)
Title: Process for the purification of gases containing dust and gaseous impurities
IPC: F23J15/04
Filed: 1966-02-11
Abstract: 1,140,223. Purifying gas. SCHOLVENCHEMIE A.G. 11 Feb., 1966 [11 Feb., 1965], No. 6258/66. Heading B1R. In a process for removing dust and a gaseous impurity such as NH3 from a gas, the impure gas enters chambers A from a pipe not shown and is directed downwardly through nozzle-like outlets at the lower ends of the chambers onto the surface of a body of washing liquid containing, e.g. H 2 SO 4  in the base of a vessel containing the chambers A, and then flows upwardly in the vessel to pass between vertical spaced plates E irrigated with a washing liquid containing e.g. H 2 SO 4  and then upwardly again through baffles H to a chimney G.
Patent GB-1217002-A (GB)
Title: Electrodeposition of resins
IPC: C08G65/26
Filed: 1968-02-08
Abstract: 1,217,002. Coatings. DESOTO, Inc. 8 Feb., 1968 [10 Feb., 1967; 28 April, 1967], No. 6271/ 68. Heading B2E. [Also in Divisions C3 and C7] An electrically-conductive body is coated with a resin by immersing the body in an aqueous dispersion of a hydrophilic resin having an acid number of 8 to 70 and being a linear resin containing carboxyl groups and hydroxyl groups, the latter having been formed by reaction of some of the carboxyl groups with an epoxide and being positioned remote from the backbone of the resin, the resin being in the form of a salt with a base to provide dispersed particles of size less than 0.5 micron, passing a unidirectional current through the dispersion with the body as anode to form a film thereon and baking the film to cure it. The dispersion may also contain a waterinsoluble thermosetting aminoplast resin. The hydrophilic resin may be derived from a polyhydric polyether or an addition polymer. The polyether is preferably an aliphatic polycyolic polyether of the formula where n is 10 to 14. This is partially esterified with a monocarboxylic acid and the hydroxy ester is then reacted with a polybasic acid anhydride to provide carboxyl groups without cross-linking the resin. The product is then reacted with an epoxide in stoichiometric deficiency to form a hydroxy ester containing carboxyl groups. The epoxide is preferably a mono-epoxide but may comprise additionally or solely a polyepoxide, e.g. a diglycidyl ether of bis-phenol. The polyether may also comprise, instead of the above polycyclic compounds, glycidyl ethers of aromatic compounds or of glycols. The addition polymers which may be used are copolymers of hydroxyl-containing ethylenic compounds and carboxylcontaining ethylenic compounds. The first group includes hydroxyalkyl acrylates, methacrylates, maleates, crotonates and norbornene and alkyl, methalkyl and orotyl alcohols. The second group includes acrylic, methacrylic, crotonic, itaconic, maleic and fumaric acids and monobutyl maleate. The copolymers are reacted with epoxides as above. The aminoplast resin may be a urea-, melamine- or benzoguanamine-formaldehyde condensate in amount up to 40% by weight of total resin. A pigment, e.g. TiO 2 , and organic solvents may also be present. The base which may be used to convert the resin to a salt may be ammonia but is preferably an amine. The dispersion preferably contains 5 to 15% solids and may be maintained at a pH of up to 10. Voltages of at least 200 are suitable. In Example 1, a metal tank serves as cathode and steel and aluminium panels treated with zinc phosphate are used as the anodes for coating. The voltage is run up from zero to 500. The film is baked at 400‹ F. to cure.
Patent GB-458061-A (GB)
Title: Improvements in the manufacture of chlorhydrins
IPC: C07C29/66
Filed: 1936-03-02
Abstract: In the production of chlorhydrins by absorbing an olefine and chlorine in separate vessels between which an aqueous liquor circulates, the circulation of the liquor is effected by the agitation in the two reaction vessels.  In the arrangement shown, the reaction vessels A, B <PICT:0458061/IV/1> are provided with centrifugal agitators which cause the liquor to overflow from each vessel and circulate through pipes Ta, Tb, which are arranged so as to offer a large surface for cooling the liquor.  Chlorine and olefine are admitted from holders C and D and water is admitted at I, liquor being withdrawn at J.  Examples describe the production of ethylene and propylene chlorhydrins. The solution withdrawn is freed from olefine dichloride by extraction with a small quantity of solvent which may be a petroleum fraction boiling at 105--110 DEG  C. for ethylene chlorhydrin and cyclohexane for propylene dichloride. The purified liquor is then treated with a solvent to extract the chlorhydrin.  For ethylene chlorhydrin a mixture of isopropyl ether and normal propyl alcohol is mentioned, and for propylene chlorhydrin, benzene.  The extractions may be effected by the apparatus described in Specifications 307,868, [Class 2 (iii)], and 435,725.
Patent GB-765544-A (GB)
Title: Production of amides and ketones having basic substituents
IPC: C07D295/108
Filed: 1955-03-03
Abstract: The hydrohalide of an amide or ketone having the general formula: <FORM:0765544/IV(b)/1> wherein R is a hydrogen atom or an alkyl, aryl or aralkyl group, R1 is an aryl group or an aryl-amino group which may contain alkyl groups or halogen atoms as nuclear substituents and/or an alkyl substituent on the nitrogen atom of the amino group, R2 and R3 are both alkyl or cycloalkyl groups or together represent a polymethylene or alkyl-substituted polymethylene group, and Hal is a halogen atom, is prepared by treating an amide or ketone R.CH2.COR1 with an N-halogeno secondary amine R2.N(Hal).R3 in an inert solvent. Suitable solvents are dialkyl ethers, cyclic ethers or carbon tetrahalides.  If an acid acceptor is present in the reaction the product is a free base.  Acid acceptors referred to are an excess of the secondary amine, a tertiary amine and an alkali metal salt of a weak acid.  Amine starting materials referred to are N-chlordimethylamine, N - chlormethylethylamine, N - chlordiethylamine, N - chlordi - n - propylamine, N - chlordi - p - butylamine, N - chloropiperidine and N-chlorodicyclohexylamine. Ketone starting materials include acetophenone, propiophenone, methyl tolyl ketone, ethyl tolyl ketone and methyl xylyl ketone, and amide starting materials include acetanilide, aceto-ortho-toluidine, acet - para - toluidide, acet - 2.4 - xylidide, acet-2,6 - xylidide, propionanilide propion - 2.4-xylidide, propion - 2.6 - xylidide, orthochloroacetanilide, para - chloroacetanilide, 2.4-, 2.5 - dichloroacetanilide and 2.4, 6 - trichloroacetanilides, para - chloropropionanilide, N - methylacetanilide and N - ethylacetanilide. Examples describe the preparation of 2.6-dimethyl - N.N. - diethyl glycylanilide, 2.5 - di - chloro - N.N. - di - n - propyl alanylanilide, a -piperidinopropiophenone hydrochloride and a -dimethylaminodesoxybenzoin.  Starting materials.  N-Halogeno secondary amines are prepared from the appropriate secondary amine and a cold aqueous solution of an alkali metal hypohalite, preferably in the presence of a solvent for the amine.
Patent GB-491511-A (GB)
Title: Improvements in and connected with the drying of printed matter
IPC: B41F23/04
Filed: 1937-03-03
Abstract: 491,511. Drying printed paper. MORRIS, H. N. March 3, 1937, Nos. 6301 and 26599. [Class 34 (i)] [Also in Group XVI] Paper before or after printing is heated or dried by direct contact with superheated steam or other inert vapour at such a temperature in relation to the speed of movement of the paper that volatile constituents of the printing ink are evaporated instantaneously. Paper from a printing machine A is treated with superheated steam from nozzles 12, Fig. 7, in a vertical or horizontal drying chamber 13 previously heated to avoid condensation by a zigzag steam pipe 7 or other heating means on one or both sides of the chamber. The inlet and outlet sides of the chamber are practically closed by the supporting rollers 5, 6 of the paper. The low pressure steam may be superheated before entry or by the heating means 7. The paper may be treated in a similar chamber C (not shown) before printing, the chamber C being closed on its inlet and outlet sides by pairs of rollers between which the paper is fed. For printing on both sides each printing machine is followed by similar drying chambers 13 and may also be preceded by similar chambers C. For 3-colour printing on both sides of the paper, six printing machines, A, A<1> ... A5, Fig. 5, are followed by drying chambers B, B<1> ... B<5>, pre-treatment chambers C, C<1> being inserted before printing on each side of the paper. Rollers 5a, 6a in the drying chambers B ... B<4> only engage the printed paper at its edges. The apparatus may be re-arranged to print each side of the paper alternately until the 3 colours are applied to both sides.
Patent GB-1034231-A (GB)
Title: Edge supports for mattresses
IPC: A47C27/06
Filed: 1964-02-14
Abstract: 1,034,231. Mattress edge support. F. C. KLINE. Feb. 14, 1964, No. 6324/64. Heading A4M.  A mattress edge support or stabilizer 1 is composed of a single wire formed into an eight shape having an upper elliptical portion 2 and a lower elliptical portion 3 with the ends knotted to the adjacent wire at 4, 5 and the intermediate portions 10, 11 of the wire being twisted one around the other. The support is secured to the border wires 15, 18 by spiral wires 16, 19. The ends of the wire may be twisted together or welded instead of being knotted and in a modification the eight shape is composed of two S-shaped wires having their ends connected. The cross-section of the wire may be circular, elliptical, rectangular or diamond shape.
Patent GB-680146-A (GB)
Title: Improvements in or relating to apparatus for use in chiropody
IPC: A61F5/01
Filed: 1950-03-14
Abstract: 680,146. Orthopaedic appliances. MACDONALD, J. G. March 14, 1951 [March 14, 1950], No. 6384/50. Class 81 (ii). An apparatus for straightening the great toes comprises a base frame 1, on which are mounted stalls 6, 8 for holding the toes and resilient abutment members 12 against which the corresponding joints are pressed as the heels are brought together. The distance between the pads is set by a clamping screw 4.
Patent GB-815860-A (GB)
Title: Improvements in adhesive compositions and use of same in bonding textiles to rubbers
IPC: C08K5/353
Filed: 1957-02-26
Abstract: Cotton, rayon and nylon textiles in the form of unspun staple, simple or complex spun yarns, cords and woven fabrics are adhered to natural or synthetic rubbers such as hevea, rubber reclaim, GR-S and oil extended GR-S by means of the adhesive formed in situ and at vulanization temperatures between resorcinol and formaldehyde-1:3-diarylguanidine reaction products of the formula <FORM:0815860/IV (a)/1> where the R's represent the same or different aryl radicals, such as phenyl, ortho-tolyl, metatolyl or para-tolyl radicals.  Either or both the resorcinol and the formaldehyde-1:3-diarylguanidine reaction product may be incorporated in the rubber, applied to the surface of the rubber or applied to the surface of the textile.  In formulating a vulcanizable rubber composition containing the two adhesive components, resorcinol may be introduced into the rubber or carbon black master batch in its commercially available solid form, as a concentrated aqueous solution, or as a rubber masterbatch, followed by curing aids, plasticizers, accelerators and antioxidants, the granular or powdered formaldehyde-1:3-diarylguanidine reaction product may then be added, followed by sulphur.  The adhesive components may be incorporated in tread, sidewall and liner stock for adhering such rubber stock to rubber-reinforced tyre carcasses. Specification 751,195, [Group VIII], is referred to.ALSO:The invention comprises compounds of the formula <FORM:0815860/IV (b)/1> where the R's represent the same or different aryl radicals. Preparation is by mixing a 1 : 3-diarylguanidine of the formula RNH-C(: NH)-NHR with an excess of paraformaldehyde or formalin at room temperature, heating the solids from such a mixture to between 90 DEG  and 95 DEG  C. and then vigorously stirring the resulting fluid mixture while raising the temperature to between 130 DEG  and 150 DEG  C. until one molecular equivalent of water has been cleaved for each molar proportion of aryl guanidine present in the original reaction mixture.  The R's are exemplified by phenyl, ortho-tolyl, meta-tolyl or para-tolyl. Specification 751,195, [Group VIII], is referred to.
Patent GB-125717-A (GB)
Title: Improvements in Apparatus for Raising Ships and the like.
Inventor: HARVEY ERNEST HUDSON
IPC: B63C7/26
Filed: 1918-04-16
Abstract: 125,717. Harvey, E. H. April 16, 1918. Lifting-dogs.-The jaws of lifting-dogs for raising sunken ships are shaped to fit snugly round and completely enclose a conical block A<3> at the upper end of a chain attached to the ship. Eyes E on the jaws, carrying ropes leading to the surface, enable the jaws to be released from the blocks if desired. To engage the block. the dogs slide down a guide-rope B running from the block to a surface buoy.
Patent GB-878550-A (GB)
Title: Traffic barriers
IPC: E01F13/00
Filed: 1960-02-24
Abstract: 878,550. Fencing. USINES A TUBES DE LA MEUSE S.A., DES. Feb. 24, 1960 [June 27, 1959], No. 6445/60. Class 45. A traffic barrier comprises at least two resilient posts 1 and a chain 3. A display unit 9 is suspended from the posts by chains 4 and springs 5 which connect to eyes 2 on the posts. The unit 9 consists of halves whose rims 9a and 9b fit one inside the other. There are bushes 11 in the unit through which the supporting members 4 pass to connect to a ring 8.
Patent GB-439235-A (GB)
Title: Improvements in the treatment of artificial filaments, threads, yarns, fabrics and the like
Filed: 1934-02-28
Abstract: Textile materials comprising yarns having a basis of a derivative of cellulose which have been subjected to a stretching and/or cr<\>zepe twisting operation in the presence of steam or hot water, are subjected to a mild treatment with solvents, swelling agents, or softening agents, such that the solvent, swelling agent, or softening agent does not completely penetrate the yarns or filaments.  The agent may be applied in such small quantities that it does not penetrate to the core of the filaments, or the agent may be removed before it has had time to penetrate completely.  Preferably the agents used are non-volatile and/or have a low softening power. Examples of suitable agents are thiocyanates, zinc chloride, lactic acids, methyl ethyl ketone, ethyl lactate, diethyl tartrate, glycol mono-acetate, methyl or ethyl glycol mono-acetate, tetrachlorethane, trichlorethylene, dichlorethylene, phenols, and ethyl alcohol.  The lustre of the filaments may be decreased, maintained, or increased according to whether the concentration of the solvent in the medium decreases, remains constant, or increases on removal.  The treatment with the solvent or swelling agent may be applied at any stage after the cr<\>zepe-twisting or stretching operation.  In an example, a cellulose acetate fabric containing a weft which has been cr<\>zepe-twisted in the presence of steam is scoured, padded with 10 per cent aqueous solution of formic acid (acetic acid, or glycol mono-acetate) and after about 30 seconds, thoroughly washed.  In another example, a dry spun cellulose acetate yarn which has been stretched in the presence of steam or hot water is immersed for two minutes in a bath containing 80 per cent of tetrachlorethane and 20 per cent of toluene.  In a modification, the stretched yarn is passed over a heated roller running in diethylene glycol at 105 DEG  C., and then wiped and washed.  The Provisional Specification refers also to the treatment of textile materials having a basis of regenerated cellulose.  Specifications 407,359; 437,019, [Group IX]; 438,584, 438,585, 438,586, 438,587; 438,588, 438,589, 438,590, 438,591, 438,654, [all in Group IX]; 438,655, and 438,656 are referred to.