baber/WOPTO huggingface dataset:
Patent GB-776705-A (GB)
Title: New dialkylamino derivatives and process for the production thereof
IPC: C07D307/52
Filed: 1955-06-03
Abstract: The invention comprises compounds of the formul <FORM:0776705/IV(b)/1> <FORM:0776705/IV(b)/2> (wherein R is phenyl or alkoxyphenyl, R1 is cycloalkyl, cycloalkenyl, aryl, aralkyl, a heterocyclic radical, the 1,3-bis-(diethylamino) isopropyl radical or an alkyl radical having a straight or branched chain containing from 3 to 6 carbon atoms), and a process for their preparation by the decyanidation of nitriles of the formula <FORM:0776705/IV(b)/3> by means of an alkali metal amide.  The intermediate propionitriles are prepared by reacting 1,3-bis-(diethylamino)-2-chloropropane with the sodium derivative of the appropriate phenyl or alkoxyphenylacetonitrile.  The decyanidation step yields a mixture of the isomers I and II, which can then be separated.  In examples: (1) phenyl cyclohexyl acetonitrile is added to sodium amide in toluene and the mixture refluxed with 1,3-bis-(diethylamino)-2-chloropropane yielding 2 - phenyl - 2 - cyclohexyl - 3,3 - bis - (diethylaminomethyl) propionitrile, which is refluxed with sodamide in xylene to give a mixture of 1 - phenyl - 1 - cyclohexyl - 2,2 - bis -(diethylaminomethyl) ethane and 1-phenyl-1 -cyclohexyl - 3,4 - bis - (diethylamino) - butane, separated by fractional crystallization of the dihydrochlorides from methyl ethyl ketone and ether; (2) 2 - phenyl - 3,3 - bis - (diethylamino - methyl) propionitrile is treated with sodamide and then with benzyl chloride giving 2-phenyl-2-benzyl - 3,3 - bis - (diethylaminomethyl) propionitrile, which with sodamide as in (1) yields a mixture of 1-phenyl-1-benzyl-2,2-bis-(diethylaminomethyl)-ethane and 1 - phenyl - 1 - benzyl -3,4-bis-(diethylamino) butane.  Similarly are prepared compounds of formul  I and II via compounds of formula III, wherein (a) R is phenyl and R1 is isopropyl, isobutyl, n-hexyl, cyclopentyl, D 1-cyclohexenyl, phenyl, furfuryl, and 1,3 - bis - (diethylamino) isopropyl; (b) R is p-methoxy-phenyl and R1 is cyclohexyl.  Starting materials.  2 - Phenyl - 3,3 - bis - (di - ethylaminomethyl) propionitrile is prepared from 1,3 - bis - (diethylamino) - 2 - chloro - propane and the mono-sodium salt of phenylacetonitrile. Other novel starting materials similarly prepared include phenyl isopropyl acetonitrile, phenyl n-hexyl acetonitrile and p-methoxyphenyl cyclohexyl acetonitrile.
Patent GB-682756-A (GB)
Title: Improvements in or relating to a substructure for an oil well drilling derrick
IPC: E21B15/00
Filed: 1951-07-06
Abstract: 682,756. Derricks. MOORE CORPORATION, L. C. July 6, 1951. [July 11, 1950] No. 16077/51. Class 78 (iv). A substructure for an oil well drilling derrick comprises a pair of laterally spaced box-like main frames A, B, Fig. 2, a plurality of removable parallel cross-members 7 rigidly connecting the tops of the frames to form a deck for engines 9 and drawworks 8, Fig. 3, an elevated box frame C removably mounted on top of the main frame near one end and extending transversely to form an elevated deck for a rotary table and shoes 11,12 for supporting a drilling derrick. The front ends of the lower beams 2 of each frame A, B extend beyond the upper beams 1 and are connected to them by inclined beams 6, two of which support brackets 29. The frame C comprises pairs of upper and lower beams 14, 15 connected by vertical columns 16 and horizontal cross-pieces 17 and supports a heavy framework 18 for supporting the rotary table that drives the drill pipe. When the derrick is to be erected, a gin pole D is first connected to the shoes 11, 12 and then the feet of a mast E, which has been assembled from prefabricated sections along the ground, are connected to the shoes 11 by pivots 20. The mast is then pulled into the vertical position by a line 21 connected to the drawworks and is secured to the gin pole. After erection (i) the floor of the frame C can be enlarged by brackets 24 and horizontal beams 23 supported by brackets 22 and (ii) a pipe setback support F can be attached to brackets 26 on the beam 14 and be supported by a truss 27 and braces 28 connected to the brackets 29. In a modification the shoes 11 are mounted on top of the frame C which is connected by ramps to the beams 1. Each ramp has a channel in which travels during erection a roller mounted near the foot of the mast.
Patent GB-1144953-A (GB)
Title: A power driven self propelled sweeper
Inventor: HARRISON WILLIAM IRVINE
IPC: E01H1/08
Filed: 1967-04-08
Abstract: 1,144,953. Road sweeping machines. THOMAS GREEN & SON. Ltd. 7 Feb., 1968 [8 April, 1967], No. 16189/67. Heading E1G. A three-wheeled pedestrian-controlled road sweeper driven by a rear engine 4 acting as a counterbalance comprises a transverse rotary brush 3 sweeping forwardly into a receptacle 7 which can be rocked about journals 10 for emptying and is releasably connected by flexible ducting to a suction dust extractor 15. The front wheel 6 is fully castoring while the rear wheels 5 are driven through a differential. Separate clutches are provided for the wheel and brush drives; there may also be a brake and reverse gearbox. There may also be provided a vertical-axis side brush (18), Fig. 3 (not shown) which is driven through belt gearing and dog-clutch from the transverse brush shaft and is raised and lowered by linkwork.
Patent GB-181385-A (GB)
Title: Process of making anhydrous metallic chlorides
IPC: C01F7/58
Filed: 1922-06-12
Abstract: Anhydrous chlorides are prepared by the action of chlorine on the corresponding bromide produced from the metal and bromine or by the reaction of chlorine on the metal in the presence of bromine.  The invention is described with reference to aluminium but is stated to be applicable generally except in the case of sodium.  Bromine is poured upon aluminium, the temperature rising so that the bromide forms in liquid form, and chlorine is passed through the liquid displacing the bromine which is recovered in a condenser.  When a small quantity of bromine is used, the reaction may be effected under pressure and at 190 DEG  C., chlorine being supplied until the whole of the aluminium is consumed.  The production of antimony, arsenic, iron, tin, and zinc chlorides by this process is mentioned.
Patent GB-783567-A (GB)
Title: Production of aromatics and unsaturated hydrocarbons
IPC: C07C15/00
Filed: 1955-06-06
Abstract: Aromatics and unsaturated aliphatic hydrocarbons are obtained by continuously heating petroleum oil to a cracking temperature in the range of 1200-1700 DEG  F. while maintaining a hydrocarbon partial pressure of 30-300 p.s.i.a. until 25-50 weight per cent of the oil is converted to C3 and lighter hydrocarbons, reducing the hydrocarbon partial pressure below 30 p.s.i.a., maintaining the oil under pressure at the cracking temperature range for a period sufficient to obtain a total conversion of said oil to 35-60 weight per cent of C3 and lighter hydrocarbons, this total conversion being at least 5 per cent greater than the conversion obtained in the first zone, cooling the cracked products and separating the aromatics and unsaturated aliphatic hydrocarbons.  The petroleum oil may be a shale oil, catalytic cycle stocks, aromatic extracts, or a whole crude; preferably a gas oil distillate boiling in the range 430-1000 DEG  F. is utilized.  In an example an East Texas light gas oil of 430-650 DEG  F. boiling range was heated to 1250 DEG  F. for 3 seconds, the outlet partial pressure being 50 p.s.i.a. to produce a 40 per cent conversion to C3 and higher hydrocarbons.  On lowering the partial pressure to 12 p.s.i.a. and raising the temperature to 1400 DEG  F. for a residence time of 0.15 secs. the conversion is raised to 45 per cent.  The product comprises 18.9 per cent of ethylene, 14.1 per cent of propylene, 6.5 per cent of benzene and 6.5 per cent of toluene. Heat-carrying medium such as particulate petroleum coke may be used in the cracking reaction.
Patent GB-1069572-A (GB)
Title: Foaming compositions
Inventor: TRAPPE GORDON
IPC: C08J9/14
Filed: 1964-04-20
Abstract: Foamable compositions comprise at least one compound of general formula R2X, where R represents a furan, dihydrofuran, substituted furan or substituted dihydrofuran radical, z is 2,3 or 4 and X represents a polyvalent organic radical having a valency of z, a catalyst and a foaming agent.  X may be a saturated or unsaturated hydrocarbon radical which may contain groups such as hydrocarbonoxy, ester, carbonyl or hydroxyl groups.  X need not necessarily contain an hydrocarbon group. Specific examples of compounds of formula RzX are (1) furfuryl furoate, (2) difurfurylidene derivatives of ketones, (3) furoin, (4) desoxyfuroin, (5) furil, (6) esters of furoic acid with di-, tri- and tetrahydric alcohols, (7) esters of furfuryl alcohol with carboxylic acids, (8) the spirocyclic acetal from furfural and pentaerythritol and (9) compounds analogous to the above but containing the dihydrofuran nucleus. The foaming agent is preferably an inert, volatile halogenated hydrocarbon.  The catalyst is preferably an acidic one, e.g. boron trifluoride, conveniently used as its etherate.  The composition may include a compound containing active hydrogen atoms, an epoxy group or an unsaturated group.  The active hydrogen-containing compound may be a phenolic compound, e.g. 2,2-bis-(4-hydroxyphenyl) propane. The epoxy-containing compound may be a condensate of epichlorohydrin and 2,2-bis-(4-hydroxyphenyl) propane.  The unsaturated compounds include vinyl ethers and dihyropyran and its derivatives, e.g. 3,4-dihydro-2H-pyran.
Patent GB-758401-A (GB)
Title: Improvements in or relating to coating aqueous compositions on web supports
IPC: G03C1/74
Filed: 1954-01-02
Abstract: 758,401. Drying webs. DU PONT DE NEMOURS & CO., E.I. June 2,1954 [Aug. 20, 1953], No. 16286/54. Class 34(1). [Also in Group VIII] A process of coating comprises extruding a viscous aqueous composition onto a moving flexible web travelling at a linear speed of at least 150 ft. per min. and 1 to 200 times faster than the linear speed of extrusion in the substantial absence of non-condensable gases but in the presence of added water vapour or readily condensable vapours of inert water soluble liquids having a boiling point not greater than 230‹F. and passing the coated web at the same rate through a drying zone from 2 to 15 secs. at a pressure of 5 to 192 mms. and a temperature 34‹F. to 150‹F. As shown, a web of film or paper to be coated is passed between rollers 3, 4 around guide rollers 5 to 7 beneath an extrusion hopper 13, around a large drum 8 spaced a small distance from a wall of a chamber 1 over an adjustable roller 15 in a heating chamber beneath a roller 16 and between rollers 17, 18. Chamber 1 has a tube 14 for introducing vapours and an outlet comprising a  draw off passage 2. An L-shaped baffle 9 supports rollers 3, 11 contacting resilient roller 4 and a roller 12 respectively. The roller 12 contacts the drum 8. The heating chamber has infra-red heating panels 19 or panels.circulating heating fluid enclosed within heat insulation 20. The apparatus has a viewing window 21 and seals 10 of the kind described in the Specification 268,391 [Class 34(ii)]. In an alternative form the heaters are positioned between the drum and the chamber wall. Laterally of the chamber is the draw-off, passage and a passage for introducing high pressure steam to absorb vapours and an inlet for water. The water passes over baffles to an outlet and pump. A further inlet for steam collects any remaining vapours. The extrusion hopper has a pipe for vapour projected between the web and the coating which may comprise aqueous gelatin silver iodobromide emulsion or aqueous silver halide dispersion in water permeable colloids, e.g. gelatin, which may be extruded onto thin gelatin on a cellulose acetate film. Instead of an extrusion hopper a pair of closely fitting rolls may be used. Multi-layer film elements may be prepared or multi-colour films, printing papers, double-coated X-ray films, cinema or portrait films and paper. The coating may be a lightsensitive silver halide colloid layer, a light filter layer, anti-holstion layers containing dyes and pigments, anti-abrasion layers and sublayers from aqueous solutions including aqueous ethanol solutions of polyvinyl ocetol colour formers as described in Specification 598,477 [Group IV]. Specification 755,151 [Group XIII] also is referred to.
Patent GB-1174087-A (GB)
Title: Method and apparatus for Testing Fuels for Resistance to Detonation
Inventor: BEAL WILLIAM ERNEST
IPC: G01N25/50
Filed: 1967-04-10
Abstract: 1,174,087. Spray carburetters. MOBIL OIL CORP. April 10, 1967, No. 16310/67. Heading F1B. [Also in Divisions Gl and G4] In testing fuels for octane value, a test engine is fed from a carburetter Fig. 4 wherein a Venturi 66 and jet 64 draw fuel from tube 44 having part 46 which is slidable by rack and pinion through chambers 42a, 42b separated by 0 rings, connected to open topped containers 34a, 34b &c. accommodating samples of different fuels which may be warm up reference, or test fuels. Servomotor 54 driving the rack and pinion in response to rebalance signals from potentiometer 52 varied thereby and control signals from contact of switch 76 driven from actuator 80 in response to pulses PA on terminal 82, selects different fuel containers in turn which as they are exhausted vary with time the fuel/air ratio of the engine mixture. A movable contact 84 driven by actuator 80 sequentially selects signals from the sliders of potentiometers 86-1 to 86-5 respectively set to represent the known octane numbers of the reference fuels, supplied to the engine 20, and pulses PA from cyclic timer 28 have intervals sufficient for exhaustion of each selected fuel container, while switch contact 92 driven by actuator 80 derives pulses PB PC PD in turn from contact segments 94, 96, 98 during the period of application of one or more reference fuels, the period of application of one or more test fuels, and the termination of a test sequence.
Patent GB-302115-A (GB)
Title: Improvements relating to the coating, impregnating, dressing, sizing and printing of fibrous material
IPC: D06M15/05
Filed: 1927-06-20
Abstract: 302,115. Lilienfeld, L. June 20, 1927. Yarns &c., treating with liquids. - Yarns or fabrics of animal or vegetable fibres such as flax, hemp, linen, ramie, jute, cotton, or wool, are dressed, sized, or printed with solutions of cellulose from which cellulose may be precipitated or regenerated, gas, for example, air, carbon dioxide, hydrogen, or nitrogen being emulsified with the cellulose solution under pressure, or materials such as alkali carbonate, sulphite, or sulphide being mixed with the solution of cellulose so that air bubbles are formed in the coating material as regenerated or precipitated. As solutions of cellulose, there may be employed pure or crude viscose matured or not, solutions of cellulose in ammoniacal solutions of copper oxide, solutions in calcium thiocyanate, or in caustic alkali containing urea, thiourea, or guanidine. The cellulose is precipitated by known precipitating baths or regenerated by heating, steaming, or allowing the treated material to stand. The gas may be expelled to allow the walls of the bubbles to collapse by boiling or treating the material with water under pressure. There may be added to the solution of cellulose, a sizing agent such as starch, dextrin, albumen or gelatine; a softening agent such as glycerine, soap, Turkey red oil, glucose, castor oil, or paraffin oil; a filling material such as talc or clay; a pigment such as zinc white, soot, or powdered mica; a dyestuff, or any two or more of the above substances. Material treated by the process has a soft and warm feel, is downy, resembles the natural fibre, and fissures do not occur in the coating when the material is stretched.
Patent GB-146946-A (GB)
Title: Improvements in and relating to the generation of electrical oscillations
IPC: H02M7/44
Filed: 1920-06-17
Abstract: 146,946. British Thomson - Houston Co., (Assignees of White, W. C.). July 8, 1919, [Convention date]. Electric oscillations, producing.-The circuits of two thermionic valves 1, 2 are so arranged that the output circuit of valve 1 is connected to the grid circuit of valve 2 by resistance or other impedance coupling, while the portion of the output circuit of the valve 2 which also forms part of the grid circuit of the valve 1 is of negligible resistance. The output circuit of valve 1 includes a resistance 9, and is connected by condenser 10 to the grid of valve 2. The output circuit of valve 2 includes inductance 11 and capacity 12, which determine the frequency generated, and is connected by condenser 13 to the grid of valve 1. The grid and filament of each valve are shunted by high resistances 15, 16.
Patent GB-663075-A (GB)
Title: Improvements in or relating to parachute devices
IPC: B64D17/80
Filed: 1948-06-18
Abstract: 663,075. Parachutes. FRIEDEH, L.P .June 18, 1948 [June 21,1947], No. 16432/48. Addition to 620,731. Class 4. A parachute apparatus according to the parent Specification which includes means for releasing the parachutes in desired sequence, includes means responsive to occurrence of a predetermined condition at a determinable time subsequent to the deployment of the first parachute, for releasing the subsequent parachute. When applied to a pilotless aircraft or projectile the multiple parachute pack is housed within the fuselage in a compartment bounded by a detachable outer panel 26 and fixed partitions 45, 46 and is subdivided into two spaces 51. 52 by a releasable partition 50. A small parachute 30 is housed between the panel 26 and the partition 50 and is connected by a load line to a connector 32 which is connected to the projectile and the main parachute 40. The door 26 is retained by a catch operated by a solenoid which is energised by the closing of a switch controlled by a further solenoid from a signal receiver and amplifier. Ejection of the parachute 30 sets a time delay mechanism 110 in motion which, after a predetermined time, closes the contacts 112 to energise a rotary solenoid 100 to release, through arms and links 95, 94, 92, a trigger 90 to permit a rod 61 to rotate under the action of a spring 107 to free the upper edge of the partition 50 to release the parachute 40, which is ejected by elastic cords 132. Should it be necessary to release the parachute 40 before the time delay interval has elapsed or to release both parachutes in the event of the aircraft getting into difficulties a solenoid 140 closes a pair of contacts 141, 142 to cause both releasing circuits to operate, actuation of the solenoid 140 being effected by a. further signal receiving device. To enable the parachute 40 to be released at a predetermined altitude the time delay device 110 may be replaced by a barometric device. In an alternative arrangement, Fig. 13, which may be used for dropping supplies, a number of parachutes are packed in containers attached to the load and arranged to be released sequentially. The first parachute 205 is attached to the load 200 by a cord 222 and is released from its container 201 by a static line secured to the aircraft structure. A cord 226 and pin 227 attached to the cord 222 sets a time delay device 228 on the second container 202 in motion to release the second parachute after a predetermined time interval. The remaining parachutes are released from the containers 203, 204 in similar manner. The parachute canopies are stated to be hemispherical.
Patent GB-1182813-A (GB)
Title: Electronic Switching Device.
IPC: G05D23/24
Filed: 1967-04-11
Abstract: 1,182,813. Automatic temperature control. BILLMAN-REGULATOR AB. April 11, 1967 [April 14, 1966], No.16529/67. Heading G3R. A system for automatically controlling the temperature of a room comprises a heating element EL, the current flow through which is controlled by way of a bi-directional semi-conductor switching device LS which is itself controlled in accordance with the temperature of the room. The gate potential for the device LS is derived from an oscillator circuit including transistors T 1 , T 2 , the cyclic period of which is fixed. The ratio of the two portions of this period, and hence the existence or not of a gating signal for the device LS, is governed by a differential amplifier having two transistors T 3 , T 4  connected to a bridge circuit comprising resistors R 8 , R 9 , R 10  and a thermally sensitive resistor R 11  which is responsive to the temperature of the room. The cyclic period of the oscillator is preferably of the order of 1À5 to 3 minutes.
Patent GB-144490-A (GB)
Title: Abraders or sand-planes
IPC: B24D15/02
Filed: 1919-07-04
Abstract: 144,490. Tyler, A. H. July 4, 1919. Wheels and other tools.-A device for holding a strip of emery cloth, sand paper, or like material comprises a flat plate of metal, wood, or softer material A having secured thereto a handle C and provided near one end with a tapered jaw D adapted to receive a pin or wedge F around which one end of the abrasive strip E has been folded. The strip is bent round the end of the plate and at its other end is engaged by a jaw G similar to the jaw D but movable on the plate. This jaw is attached to two springs H of steel, rubber &c. adapted to be tensioned by a toggle lever J. The plate A may be formed as the arc of a circle; the toggle lever may be replaced by a peg over which the springs are hooked after extension by hand. A strip of soft backing material may beplaced between the plate A and the abrading- sheet and may be held by the grips D, G or by additional grips, or may form a covering for the plate. The sides as well as the ends of the strip may be held by grips; the device may be arranged for operation by power.
Patent GB-628308-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/74
Filed: 1947-06-25
Abstract: 628,308. Luminescent materials. PHILIPS ELECTRICAL, Ltd., (formerly PHILIPS LAMPS, Ltd.), and ROTHSCHILD, S. June 25, 1947, No. 16740. [Class 39 (i)] A luminescent material of high stability in respect of heat and chemical action, and particularly suitable for use as an internal coating material for fluorescent lamps, comprises a matrix consisting of an alkaline earth metal arsenate and an activator. One or more alkaline earth halides may be added to alter the colour of the luminescence, in such quantities that the material exhibits an apatite or wagnerite structure. The arsenate is prepared by precipitation or by heating the dry ingredients and is activated by mixing with manganese arsenate or antimony phosphate or arsenate, or both, and firing at 800‹ C. for half an hour in air. Calcium fluoride or strontium fluoride may also be added. The manganese arsenate may be prepared by dissolving manganese sulphate in boiling water, adding ammonium arsenate in solution, and filtering off the precipitate. Instead of being introduced as arsenates, the activating metals may be introduced as oxides, and the deficiency of arsenious oxide made up by an addition of ammonium arsenates. The activating metals which may include cerium may be incorporated in the materials to start with. Improved results may be obtained by firing in nitrogen instead of in air, provided that after firing the phosphors are allowed to cool to about 300‹ C. before coming into contact with air. Two stages of firing may be necessary to obtain a uniform product.
Patent GB-802432-A (GB)
Title: Selenium rectifier
IPC: H01L21/108
Filed: 1955-06-15
Abstract: 802,432. Selenium rectifiers. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and FRENCH, E. L. May 4, 1956 [June 15, 1955], No. 17191/55. Class 37. In a selenium rectifier an artificial barrier layer consisting of one or more prolamines is provided between the Se and counter electrode. Examples of prolamines given are zein and hordein. A layer of zein may be provided by immersing a base-plate coated with a layer of crystalline Se with its plane vertical for 1 minute in a 1 per cent solution of zein in an alcohol water mixture containing from 80- 90 per cent alcohol. Methyl, ethyl and isopropyl alcohols are suitable. The plate is slowly withdrawn from the solution and dried by radiant heat. A counter electrode is then applied to the barrier layer and the device electroformed.