baber/WOPTO huggingface dataset:
Patent GB-987758-A (GB)
Title: Plasticised urea-formaldehyde resin compositions
IPC: D21H19/12
Filed: 1961-07-24
Abstract: Compounds of the formula <FORM:0987758/C2/1> where R and R1 are C2-9 alkyl groups are prepared by reacting diethylenetriamine with one or more C3-10 alkanoic acids or anhydrides, preferably by refluxing in an organic solvent. Salts with acetic, propionic, butyric and isobutyric acid are referred to.  In examples, diethylene triamine is refluxed in xylene with (I) caprylic acid to form 2-heptyl-3-(b -capryl-amido-ethyl) imidazoline.  Mixed with glacial acetic acid the product yields the acetate. (II) Isodecanoic acid to yield 2-isononyl-3-(isodecanoamidoethyl) imidazoline; (III) propionic anhydride to yield 2-ethyl-3-(propionamido-ethyl) imidazoline; (V) caproic acid to yield 2-pentyl-3-(caproamidoethyl) imidazoline; (VI) 2-ethyl hexanoic acid to yield 2-(3-heptyl)-3-(2-ethylhexamidoethyl) imidazoline; (VII) 2-methyl pentanoic acid to yield 2-(2-pentyl)-3-(2-methyl-pentamidoethyl) imidazoline; (VIII) butyric anhydride to yield 2-(n-propyl)-3-(butyramidoethyl) imidazoline.ALSO:Heat-curable compositions comprise a urea-formaldehyde resin and a plasticizer of formula <FORM:0987758/C3/1> wherein R and R1 are saturated alkyl groups containing from 2-9 carbon atoms; or a lower carboxylic acid salt of the base, e.g. the acetate, propionate or butyrate.  The compositions, which may be aqueous, may also include a cure accelerator, e.g. 2-amino-2-methyl propanol hydrochloride, and pigments, e.g. TiO2.  Plasticizers mentioned are 2-heptyl-3-(b -caprylamidoethyl) imidazoline; 2 - isononyl-3-(isodecanoamidoethyl) imidazoline; 2-ethyl-3-(propionamidoethyl) imidazoline; 2-pentyl-3-(caproamidoethyl) imidazoline; 2 - (3 - heptyl)-3 - (2 - ethylhexamidoethyl) imidazoline; 2-(2-pentyl)-3-(2-methyl-pentamidoethyl) imidazoline; 2 - (n - propyl) - 3 - (butyramidoethyl) imidazoline.ALSO:Aqueous compositions of urea-formaldehyde resins and compounds <FORM:0987758/B1-B2/1> wherein R and R1 are saturated alkyl groups with 2-9 carbon atoms are cast on a substrate, dried and baked to form coatings. In Example XII an aqueous solution of urea-formaldehyde resin, 2-heptyl-3(b -caprylamidoethyl)-imidazoline and 2-amino-2-methyl propanol hydrochloride is coated on to paper, dried and cured.
Patent GB-1139651-A (GB)
Title: Organotin chlorobenzyl esters, their preparation, and their use as herbicides
IPC: C07F7/22
Filed: 1967-06-09
Abstract: 1,139,651. Organotin esters. UNITED STATES BORAX & CHEMICAL CORP. 9 June, 1967 [15 Aug., 1966; 3 Oct., 1966], No. 26801/67. Heading C2J. [Also in Division A5] The invention comprises trialkyltin chlorophenylacetates of general formula where R represents the same or different C 1 - C 10  alkyl groups and n is 1 to 5, preferably 1 to 3. Such a compound may be prepared by reacting a chlorophenylacetic acid with either a bis-(trialkyltin)-oxide R 3 Sn.O.SnR 3  or a trialkyltin hydride R 3 SnH, preferably at 50‹ to 120‹ C. in an inert liquid. Examples describe the preparation of tri-n-butyltin 4-chlorophenylacetate, trin-propyltin 3-chlorophenylacetate, triethyltin 2,6 - dichlorophenylacetate and tri - n - butyltin 2,3,6 - trichlorophenylacetate, and a number of other compounds are mentioned.
Patent GB-261358-A (GB)
Title: Improvements relating to incandescent electric lamps
IPC: H01K3/30
Filed: 1926-10-27
Abstract: 261,358. Sakakura, Y. Nov. 11, 1925, [Convention date]. Multiple-filament lamps, bulbs.-A self-contained bulb 2 is fitted into a recess within another bulb 1, and the contacts are arranged so that either the filament 7 of the outer bulb may be lighted alone, or both filaments 7, 11 of the two bulbs together. The cap 3 of the outer bulb is annular to accommodate the cap 4 of the inner bulb. When the centre contact 5 of the combination first engages the contact of the holder, current passes through both filaments in series, but when the bulbs are screwed farther into the holder the contact 5 is depressed against the action of a spring and engages the outer socket of the cap 4, thereby short-circuiting the filament 11.
Patent GB-260600-A (GB)
Title: Improvements in pessaries
IPC: A61F6/08
Filed: 1926-10-27
Abstract: 260,600. Fiessler, A. Oct. 27, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Pessaries; suppositories.- A pessary consists of a ring 3 of gelatine or other soluble substance, the opening through the ring being closed by a cup-shaped membrane 2 which may be soluble or insoluble. Alternatively, the pessary may be made of a substance which melts under the action of warmth and if the membrane 2 is insoluble it may be partly or wholly lined with a soluble substance. Medicinal or chemical substances may be incorporated in the pessary.
Patent GB-516414-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04M15/04
Filed: 1938-07-18
Abstract: 516,414. Automatic exchange systems. POLLAK, J. E. (Associated Telephone & Telegraph Co.). July 18,1938, Nos. 26910/39 and 26911/39 Divided out of 516,409. Drawings to Specification. [Class 40 (iv)] The arrangements described form part of the system described in Specifications 516,348, 516,408 and 516,409, the circuits being identical with those of the last-mentioned Specification. The present invention relates more particularly to a request by the calling party to be informed on completion of a ticketed call of the charge therefor. The request is made by dialling an additional digit as the result of which the ticket is marked with an asterisk and a warning lamp is lit. Specification 516,413 also relates to a. part of the system.
Patent GB-1180964-A (GB)
Title: Improvements in or relating to Methods of Priming and Welding Steel.
Inventor: TODD JUDSON PAGE
IPC: C09D5/10
Filed: 1967-06-12
Abstract: 1,180,964. Welding by fusion. J. P. TODD. 12 June, 1967, No. 26973/67. Heading B3R. [Also in Division C3] Steel structures are fabricated from plate and the like parts by mechanically cleaning, e.g., shot blasting the parts, spraying the parts with a primer principally comprising: (a) a base of one or more of polyvinyl butyral resin, uncatalysed epoxy resin and hydrocarbon resin, (b) aluminium powder in a ratio of 1 : 40 to 1 : 1 relative to the resin, (c) a fast drying organic solvent-diluent, air-drying the primer and welding with a consumable low hydrogen type electrode without prior removal of the primer. The heat effected area created during welding may be resprayed with the primer. The primer may contain a pigment, e.g. an oxide of iron or chromium.
Patent GB-731582-A (GB)
Title: Improvements in or relating to ringing devices for telephone systems
IPC: H01J25/38
Filed: 1953-10-01
Abstract: 731,582. Exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 1, 1953 [Oct. 3, 1952], No. 26994/53. Class 40 (4). In an arrangement for generating ringing signals, a local circuit including the exchange battery, a break contact and one winding of a relay is closed when a ringing signal is required, whereupon the relay operates, opens its operating circuit, and relapses, and so on ; thus inducing an alternating voltage into one, or two, further windings of the relay connected to one, or both, of the line wires of the subscriber's line to be rung; at least one of the said further windings also serving to feed battery to the subscriber's microphone. Preferably two further windings are provided, both of which serve to feed battery to the line, and auxiliary contacts of the relay reverse the battery connections to the line in time with the induced alternating voltage. Arrangement for manual exchange, Fig. 1. Actuation of the key P1 associated with a line a, b connects the line to an operator's equipment T combined with ringing key Q and feed relay N. To ring the line, the operator actuates the key Q, which reverses the battery connections over windings I and II of relay N, and completes an operating circuit for relay N over winding III. N operates (C3 ensuring full operation), restores the polarity on the line, and then releases, again reversing the polarity on the line. The polarity on the line in each case acts in the same sense as the alternating voltage induced from winding III into windings I and II. On the reply of the called party, N holds over windings I and II. Arrangement for automatic exchange, Fig. 2. LV is a final selector of which S and N are two relays, IMP being a common relay which times the ringing bursts. A negative pulse on D2 brings up S, which holds to D1, and connects + to wire b in place of - . N pulls up over winding III, restores the - on wire b, and then releases, reconnecting + to wire b. Relay N continues to operate and release while C0 charges. IMP then operates and releases N. C0 discharges through IMP which then releases. N then continues to generate ringing current. On the reply of the called party, N holds over windings I and II, S releases and IMP is disconnected. A further embodiment is described with reference to Fig. 3 (not shown), in which the direction of current in the winding III is reversed simultaneously with the current reversal in windings I and II. Embodiments in which the relay has two windings only. In Fig. 4a the lower winding of N remains connected between the positive pole of the battery and wire b. Operation of Q energizes N over its upper winding, whereupon N releases and the potential applied to wire a is reversed. This continues until the called party answers when N holds operated over both windings in series. In the modification of Fig. 4b (not shown), operation of N disconnects + from wire b and substitutes - .
Patent GB-444205-A (GB)
Title: Improvements in or relating to vehicle heating or ventilating devices
IPC: B60H1/24
Filed: 1934-09-20
Abstract: 444,205. Ventilating vehicles. CLAYTON DEWANDRE CO., Ltd., WILLETT, S. E., and BLOMELEY, H., Titanic Works, Lincoln. Sept. 20, 1934, No. 27082. [Class 137] Air enters from the front of the vehicle through an inlet a and passes through a heater b and a duct d below the floor i leading by branches to passages g in the wall and floor angles from which vertical passages l lead to outlets m into the vehicle. The passages g are formed by curved sheeting sprung into clips k, and the outlets may be restricted by detachable members o to equalize the air flow. The heater b may be provided with an induction fan. Some of the outlets may be below the seats as described in Specification 444,470.
Patent GB-969400-A (GB)
Title: Air conditioning system for ground effect machines
Inventor: ROGERS BRIAN HOWARD
IPC: B60V1/00
Filed: 1962-07-14
Abstract: 969,400. Air conditioning; refrigerating; heating by circulation of fluids. NORMALAIR Ltd. July 9, 1963 [July 14, 1962], No. 27141/62. Headings F4H, F4U and F4V. Air supplied to an enclosure 16 of a ground effect machine passes through the evaporator 13 of a refrigeration circuit having a condenser 6 cooled by air from a blower 4 providing pressurized supporting air for the machine. The refrigeration circuit includes a receiver 10, a drier 11, an expansion valve 12 and a valve 14 controlled in response to air temperature in a mixing chamber 15 at the inlet of the evaporator 13. An internal combustion engine 41 drives the blower 4 through a shaft 3 and is disengageably connected by a mechanism 40 to drive the refrigeration compressor 2. During stops an auxiliary motor 5 is engaged through the mechanism 40 to drive the compressor 2 and also drives a fan 8 to draw cooling air through the condenser 6. Coolant from the engine 41 is circulated by a pump 23 to a heat exchanger 17 heating the air supply to the enclosure 16 and thence through a radiator 18 cooled by the air stream from the condenser 6. A radiator bypass 19 is controlled by a thermostatic valve 20 responsive to the coolant temperature at the outlet of the engine 41. A thermostatic valve 22 directs some or all of the heating fluid from the exchanger 17 according to temperature in the mixing chamber 15, and a manual two-way valve 24 and a by-pass 25 may isolate the heatexchanger 17. Recirculated and fresh air are drawn through filters 34 and 35 in proportions determined by the setting of automatic or manual valves 26 and 27, evaporator 13, heat exchanger 17, and an electric heater 28 by a fan 29 and pass thence through either a water extractor 30 or a humidifier 31 according to the setting of a valve 44 to discharge ducts 32 in the enclosure 16. The rate of air change in the enclosure is varied by vent means 33. The heater 28 may augment the heat-exchanger 17 but is normally used when the engine 41 is stopped. The heater may be powered by external sources or by batteries in the machine itself. In a modification, Fig. 2 (not shown), the blower 4 is driven by a gas turbine having a compressor from which air is bled to the heat-exchanger 17, a thermostatically controlled by-pass being provided. In further modifications (not shown) the compressor may normally be driven by an electric motor, I.C. engine, or turbo means, and the coolant for the radiator 18 may be supplied directly from the blower 4.
Patent GB-1429768-A (GB)
Title: Snap-action electric switch
IPC: H01H13/28
Filed: 1972-06-09
Abstract: 1429768 Retractive switches; snap-action BURGESS MICRO SWITCH CO Ltd 5 Sept 1973 [9 June 1972] 27145/72 Heading H1N In the snap-acting switch of Fig. 1, a first movable contact arm 6 pivoted to an anchor member 2 and carrying a contact 20 normally engaged with a terminal arm 22 is held in this, rest, position by a spring 14 and an electrical circuit is provided through to terminal arm 4 of the anchor member 2. A second movable contact arm 24 of resilient strip material 28 having one end 30 riveted or welded to a terminal arm 26 carries a contact 32 and is biased downwardly into the rest position shown in which its free end 40 abuts the lower surface of a groove 38 in an insulating member 36 which depends from the contact 20. An actuator button 18 engages the spring 14 intermediate of the end 16 and the turned up legs 12 of the anchor member 2, and on deflection of the spring to an overcentre position the contact arm 6 is displaced with a snap-action to disengage contact 20 which, through its linkage to the second arm 24 through the insulating member 36, then causes this second arm to flex so that its contact 32 engages a further terminal arm 34 and thereby provides a second independent electrical circuit through the switch. In an alternative arrangement of Fig. 1 the free end 40 of the second contact arm 24 may be biased upwardly to its rest position in which case the two contact arms 6, 24 are displaced together throughout the snap-action. In another embodiment (Fig. 2, not shown) the insulating member 36 is dispensed with and the second contact arm 24 carries an insulating block 42 biased into engagement with contact 20 of the first contact arm. All contacts return to the rest position shown on release of the actuator button 18.
Patent GB-158368-A (GB)
Title: Improvements in or relating to the utilization of tidal energy
IPC: F03B13/26
Filed: 1919-11-04
Abstract: 158,368. Master, S. D. Nov. 4, 1919. Tidal energy, utilizing.-Apparatus for utilizing tidal energy comprises one or a number of tanks 1 fed by the tide through non-return valves 4 in the sides or bottom of the tank and provided with a series of outlets 5 leading to turbines &c. 6. One or more of these turbines serves to pump water through the pipe 15 to an auxiliary tank 14. Valves 16, 18 in the pipe 15 and a branch pipe 17 may be operated automatically according to the levels in the tanks 1, 14. As the water in the tank 1 falls, the turbines are maintained at a constant velocity by the admission of water from the tank 14 through the pipe 19. This is effected by means of a ball float 23 operating a valve 21. The turbines are connected together and to a fly-wheel 10 by means of a connecting-rod 9. Dynamos 12 &c. may be driven from the fly-wheel by means of the belt 11.
Patent GB-714712-A (GB)
Title: Improvements in grabs
Inventor: COLDWELL JOE DAVIDSON
IPC: B66C3/16
Filed: 1951-11-20
Abstract: 714,712. Grabs for handling material. TAYLOR, W. Nov. 19, 1952 [Nov. 20, 1951], No. 27185/51. Addition to 680,712. Class 78 (4) The cross bars C joining the buckets A of the parent Specification are connected by links a<SP>1</SP> to a frame A' by which the grab is suspended, while the bracket B to which the closing links b<SP>1</SP> are pivoted slides'in guides a<SP>2</SP> forming part of the frame A<SP>1</SP> and secured to the cross bar C. The operating cylinder B' is carried at its lower end by the guides a<SP>2</SP> and is supported at its upper end by a transverse member B' joining the guides a<SP>2</SP> and forming a stop limiting the downward movement of the bracket B. The links a<SP>1</SP>, b<SP>1</SP> and the cross bar C are duplicated on opposite sides of the grab, and braces connect the links b<SP>1</SP> of each bucket.
Patent GB-457947-A (GB)
Title: Improvements in and relating to tubular structural elements or units and process ofmaking the same
IPC: B64C1/00
Filed: 1935-10-02
Abstract: 457,947. Aircraft framework. ATWOOD, H. N., South Lyndeboro, New Hampshire, U.S.A. Oct. 2, 1935, No. 27209. [Class 4] [See also Groups XXVIII and XXIII] A tubular structural element 11 for aircraft &c., is made by coating and impregnating a strip or strips 10 of wood veneer with cellulosic plastic material by dipping the veneer into a bath of acetone solution containing about 5 per cent by weight of cellulose acetate &c., allowing the strips to dry, and then winding them in one or more superposed layers on to a mandrel 9 of the necessary shape, the strips being sprayed with cellulose from a nozzle 12 during the winding operation. Instead of spraying the cellulose it may be applied as dry sheets, the element thus formed being subjected to heat and pressure. The element is then allowed to set or dry, and afterwards it is removed from the mandrel and dipped into a second acetone bath, finally being placed on a finishing mandrel and allowed to dry. Figs. 16 and 17 respectively show cross-sections of the fuselage and landing gear of an aeroplane made in this manner, a mandrel of corresponding shape being used. Several elements may be bonded together to form a structural unit of any convenient shape or size ; the elements are placed on finishing mandrels 13, coated with cellulose, assembled in a press 16, and subjected to pressure, and, if necessary, heat. Fig. 15 shows the sustaining wing 22 of an aeroplane formed of a plurality of laminated elements 23 bonded together and provided with an outer covering 24 of cellulose.
Patent GB-218542-A (GB)
Title: The production of acridinium compounds
IPC: C07D219/06
Filed: 1923-10-30
Abstract: Oxy- and alkyloxyacridinium compounds are prepared by treating oxyacridines, or the alkyloxyacridines described in Specification 217,715, with alkylating or aralkylating agents in the absence of an acid-binding agent.  The products are antiseptics and show but little the character of dyestuffs.  The following examples are given:-3 : 6-dioxy- and 3 : 6-dimethoxy-10-methylacridinium chlorides are prepared by treating the corresponding acridines with p-toluenesulphonic-methylester and boiling the toluene sulphonates with hydrochloric acid to obtain the chlormethylates; ethyl-, benzyl-, and oxyethyl-acridinium chlorides are obtained by treating 3 : 6-dimethoxyacridine with p-toluenesulphonic-ethylester, benzyl chloride, and ethylene chlorhydrin respectively; the alkylations are in each case carried out in nitrobenzene solution.
Patent GB-467463-A (GB)
Title: Improvements in or relating to coffee making machines
IPC: A47J31/06
Filed: 1936-10-07
Abstract: 467,463. Coffee - making apparatus. WEINTRAUD & CO., GES., and HEUCKEROTH, C. Oct. 7, 1936, No. 27262. [Class 129] [Also in Group XVIII] The cover of a super-scalding coffee-brewing device is prevented from removal unless the hot water valve is closed. In the form shown in Fig. 2, the hot water valve handle c<1>, when turned to permit a water supply to the scalding chamber e, operates a bell-crank catch s pivoted at r by links t, u, to bring the catch s into the path of the stirrup o by which the cover d is released and removed. In the form shown in Fig. 3, a hook-shaped part v in the handle c<1> engages under the projections o<1> of the stirrup arms o to prevent operation of the stirrup. In the form shown in Fig. 4, the cover d is secured by steep threads w and cannot be unscrewed when the cock is in the "on position by reason of the engagement of a plunger y with the stop z. When the cock is turned to " off " position, the inclined member x lifts the plunger y clear of the stop z.
Patent GB-1354689-A (GB)
Title: Reinforcement of articles
IPC: B65G15/34
Filed: 1970-06-05
Abstract: 1354689 Belting IMPERIAL CHEMICAL INDUSTRIES Ltd 17 May 1971 [5 June 1970 24 Dec 1970] 27310/70 and 61329/70 Heading B5N [Also in Division D1] An elastomeric article such as a conveyer or drive belt of flexible rubber or plastics material having appreciable length compared with its width has a reinforcement comprising an assembly of artificial or synthetic continuous filaments extending longitudinally along the article, said assembly being a group of parallel filaments held in a coherent assembly in the absence of elastomeric material, e.g. by a single envelope of plastics material or loosely braided textile or by impregnation of the filaments by a settable adhesive. The reinforcement may comprise a number of discrete assemblies spaced transversely across the article. A carded staple fibre or non-woven web may be included close to the assembly and the reinforcement may also include a layer of woven fabric. The assemblies are preferably of non-circular cross-section. Glass, polyethylene terephthalate and nylon filaments are suitable for the construction of the assemblies. Multifilamentary yarns having a low order of twist may be used in the assemblies.
Patent GB-309842-A (GB)
Title: Improvements in the production of wetting, cleansing or emulsifying agents and the like
IPC: D06M13/342
Filed: 1927-10-15
Abstract: 309,842. Johnson, J. Y., (I. G. Farbenindustrie Akt..Ges.). Oct. 15, 1927. Emulsions, making.-Emulsifying agents are made by converting oxyalkylamines, such as mono-, di- or tri-ethanolamine, into their salts with cycloaliphatic or hydroaromatic acids, or sulphonic acids or sulphuric acids possessing a pronounced wetting or emulsifying power. Such acids are naphthenic acids, aliphatic sulphonic acids, such as those described in Specifications 272,967 and 288,612, aromatic or hydroaromatic sulphonic acids containing alkyl, aralkyl, cycloalkyl or aryl groups, with or without further substituents, whether in the nucleus or in the side chain, turkey red oils, sulphonation products of mineral or alipliatic tar oils, and the lignosulphonic acids contained in sulphite-cellulose waste liquor. Less than the equivalent quantities of the organic bases may be added to the acids, or a portion of the organic base may be replaced by an inorganic base, such as caustic soda or ammonia; mixtures of organic bases may also be used. In examples, tri-ethanolamine is treated with naphthenic acid and with dibutylnaphthalene sulphonic acid; instead of the latter, other sulphonic acids, such as those of methyl., ethyl-, propyl-or cycloalkyl-substituted organic compounds may be used. Reference has been directed by the Comptroller to Specification 295,024.