baber/WOPTO huggingface dataset:
Patent GB-443052-A (GB)
Title: Improvements relating to electric overhead isolating switches
IPC: H01H9/28
Filed: 1934-12-18
Abstract: 443,052. Air-break switches. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and BREEZE, H. W., 132, Wrotham Road, Gravesend. Dec. 18, 1934, No. 36293. [Class 38 (v)] Switches, locking; handles.-An overhead isolating switch has a switch-operating rod or extension having a non-detachable handle for hand operation, which handle passes through an aperture in the rod or extension and is so shaped that in its operative position it lies transversely to the rod or extension and can be drawn through the aperture into an inoperative position substantially parallel to the rod or extension. In the latter position, the handle can be locked to the rod or extension. The operating rod 1 is screwed into an end piece 2 which passes through an aperture 16 in a guiding bracket 17 fixed to the vertical support carrying the fixed switch parts. Notches 19, 20 in the piece 2 co-operate with the edge of aperture 16 to determine the two operative positions of the switch, the engagement being ensured by tension springs 21. The handle is in the form of a circular-section bar 5 having a curved part 6 and enlarged part 7 ; it is passed through an aperture 4 in the piece 2 and arranged so that it can be moved to an operating position shown in full lines as horizontal in Fig. 1, or into a position, shown dotted, substantially parallel with the parts 1, 2. A sleeve 9, located on the handle between a pin 8 and the aperture 4, carries a lug 10 which is apertured at 15 to receive the hasp 13 of a padlock 14 when the handle has been moved to the parallel position and the lug 10 passed through one or other of two slots 11, 12 in the piece 2. In the position shown, the lug 10 is in the -slot 11 and under the bracket 16 and prevents upward movement of rod 1, but in the other position, the lug is inserted in slot 12 above the bracket and prevents downward movement of the rod 1. An eye 18 is provided m the piece 2 for operation by a pole.
Patent GB-1139996-A (GB)
Title: Motor end shield for an electric motor
Inventor: FAUTH JOHN MORGAN
IPC: H02K5/04
Filed: 1967-07-25
Abstract: 1,139,996. Casings for dynamo electric machines. SINGER CO. 25 July, 1967, No. 36427/68. Divided out of 1,139,995. Heading H2A. An electric motor and clutch brake assembly having a resilient end shield member is as described in the parent Specification. The claims relate to the construction of the end shield which includes an annular flange 126 extending axially from a disc-like member 122 and has longitudinal flutes 13 formed on the flange.
Patent GB-364778-A (GB)
Title: Improvements in and relating to the removal of sulphur and sulphur compounds from hydrocarbons and the like
IPC: C10G17/06
Filed: 1930-12-04
Abstract: <PICT:0364778/III/1> Liquid hydrocarbons are desulphurized by treating the liquids with sulphuric acid and alkali, and then washing the vapour with alkali solution.  For example, benzol after acid and soda treatments is fractionally distilled, and the vapours passed down a tube g into alkali solution kept hot by a heating tube h to prevent condensation of the vapours; the vapours then pass through a baffle place i, grids j which carry baffle bodies, and a baffle chamber m to a condenser; spray separated returns by a pipe k.ALSO:<PICT:0364778/IV/1> Liquid hydrocarbons are desulphurized by treating the liquids with sulphuric acid and alkali, and then washing the vapour with alkali solution.  For example, benzol after acid and soda treatments is fractionally distilled, and the vapours passed down a tube g into alkaline solution kept hot by a heating tube h to prevent condensation of the vapours; the vapours then pass through a baffle plate i, grids j which may carry baffle bodies, and a baffle chamber m to a condenser; spray separated returns by a pipe k.
Patent GB-971089-A (GB)
Title: Detonator capsule
IPC: F42B1/04
Filed: 1962-09-27
Abstract: 971,089. Detonators. J. O. BJORKLUND, J. A. D. ELDH, and G. V. GUSTAFSSON. Sept. 27, 1962 [Oct. 17, 1961], No. 36707/62. Heading F3A. A detonator capsule comprises a main ignition charge 5 of metal azide or azides and layers 2, 4 of a secondary ignition charge free from metal azides and separated by a partition 3 of a metal such as zinc or magnesium which reacts with hydrazoic acid without forming explosive compounds. A suitable secondary ignition charge is lead trinitroresorcinate, although the layers 2, 4 may differ in composition. According to the invention hydrazoic acid formed by charge 5 diffuses through layer 4 to react with partition 3. The capsule may have an aluminium casing 6 with either an integral or a separate end plate 8, which latter may be of zinc, and a cover 1 which may be of aluminium foil. The casing 6 and plate 8 may also be of non-metallic substances which do not react with the explosive substances. The metals mentioned above as suitable for partition 3 may be of compressed, preferably sintered, powder form or a relatively thin plate may be overlaid adjacent layer 2 with a harder metal such as iron or its alloys. Specification 756,510 is referred to.
Patent GB-1134841-A (GB)
Title: Improvements relating to fluid control valves
Inventor: BARKER ALFRED WALTER
IPC: F16K5/20
Filed: 1964-09-08
Abstract: 1,134,841. Valves. SANDALL PRECISION CO. Ltd. 7 Dec., 1965 [8 Sept., 1964], No. 36769/64. Heading F2V. A valve comprises a housing 11 with opposed inlet and outlet ports and containing a rotatable member 16 having a passage which aligns with the ports in valve open position. In closed position a closure member 20 carried by the member 16 obturates one of the ports. The member 16 is rotatably coupled, by a lostmotion pin-and-slot connection (30, 32), Fig. 4 (not shown), to a drive disc 26 on an operating shaft 15. This disc carries a cam member 25 engaging a follower pin 22 located in a stub 19 of the closure member. The pin 22 is slidable in slots 23 in an extension 17 of member 16 which, as shown, is lined with a bearing bush. On movement to the closed position, member 16 first engages a stop, and the closure member is then moved outwardly by the cam to sealingly engage the port. The bearing bush is made oval shaped, Fig. 7, so that on retraction of the closure member it can tilt slightly in a vertical plane to break sealing contact and allow the pressures to equalize so that the valve can readily be opened. To facilitate tilting, the face of the closure member is washed away in a shallow chamfer (35), Figs. 5 and 6 (not shown), over the lower segment. The valve may have two similar closure members obturating each of the ports 2, 3.
Patent GB-1436828-A (GB)
Title: Single lens reflex camera
IPC: G03B17/14
Filed: 1974-08-21
Abstract: 1436828 Cameras ASAHI KOGAKU KOGYO KK 21 Aug 1974 [21 Aug 1973] 36783/74 Heading G2A A single lens reflex camera has a zoom lens 2, a semi-transparent mirror 3, an imaging lens 4, a field lens 5 and a prism 6 disposed along the axis of incident light, the mirror 3 reflecting part of the light through a shutter 10, a master lens system 9 and a total reflection mirror 8 to a film in a cassette 7 and the remainder of the light passing through the mirror 3 to an eye-piece 11 via the members 4, 5, 6.
Patent GB-1210300-A (GB)
Title: Novel acridine-type non-cross-linked polymers and their heterocyclic condensation products
IPC: C08G73/06
Filed: 1968-08-01
Abstract: 1,210,300. Linear polymers having polyacridine chains. ALLIED CHEMICAL CORP. 1 Aug., 1968, No. 36787/68. Heading C3R. An acid- and water-soluble polymer having a substantially un-crosslinked chain of acridine units is obtained by reaction of (i) with an aldehyde RCHO or acetal RCH(OR<SP>1</SP>) 2 , in a medium of pH not exceeding 5, or of (ii) with formic acid, a formate or a formamide HCOR<SP>2</SP>, in a medium of pH not exceeding 6, wherein each X is H or a C 1-5  alkyl radical or, in (i) only, Cl; R is H or an alkyl, an unsaturated acyclic hydrocarbon, or a carbocyclic or heterocyclic aromatic radical, optionally substituted by a halogen atom or a hydroxy, alkoxy, amine or nitro group; R<SP>1</SP> is a C 1-10  alkyl radical; and R<SP>2</SP> is OH or OR<SP>3</SP> or NR<SP>4</SP> 2 , R<SP>3</SP> and R<SP>4</SP> being a C 1-5  hydrocarbon radical, or R<SP>4</SP> may be H; with the proviso that R is not H when (i) is 1: 3-benzenediamine. Many suitable aldehydes, acetals, formates and formamides, and acidifying agents and solvents for the reaction are listed. The products are isolated by precipitation with a base, and have antimicrobial properties; on heating with polyphosphoric acid further condensation occurs to give brittle, black, stable, " ladder " structure polymers having semi-conductor and catalytic properties. In examples the components (i) and (ii) used are: 1 : 3-benzenediamine dihydrochloride (Examples 1-11), 2 - chloro - 1 : 3 - benzenediamine dihydrochloride (Example 12), 2-methyl-1: 3-benzenediamine dihydrochloride (Example 13), and bis - (2 :4 - diaminophenyl) - methane or - butane tri- or tetra-hydrochloride (Examples 14-24); the aldehyde and formyl compounds used are: benzaldehyde, vanillin, p-(N : N- dimethylamino)-benzaldehyde, aminoacetaldehyde diethyl acetal, m-chlorobenzaldehyde, pyridine - 3 - aldehyde, m - hydroxybenzaldehyde, acetaldehyde, m - nitrobenzaldehyde, N : N - dimethylaminopropionaldehyde diethyl acetal, 2 : 4 - hexadienal, formaldehyde, diethoxymethane, N : N - dimethylformamide, formamide, N-methylformamide, ethyl formate and formanilide; further condensed products are prepared in Examples 25-29 by heating the above products with pyrophosphoric acid at 290-320‹ C. A reaction scheme for the condensation is shown in Fig. 16
Patent GB-789815-A (GB)
Title: Electric pulse reshaping circuits
IPC: H03K5/02
Filed: 1954-12-20
Abstract: 789,815. Pulse circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Dec. 20, 1954 [Dec. 18, 1953], No. 36843/54. Addition to 726,262. Class 40 (6). An electric discharge-tube circuit comprises a number of AND circuits each of which has an information signal input and a synchronizing signal input the outputs being combined in an OR circuit and applied via a discharge-tube buffer stage to a pulse regenerative amplifier shaping stage which comprises a discharge-tube having a regenerative feed-back loop. Fig. 1 shows a circuit in which three AND, or coincidence, circuits 1, 2, 3 each have at least one information bearing input and at least one synchronizing signal input, an output being obtained from any given AND circuit only when all of its inputs are energized simultaneously. The outputs of each AND circuit are combined in an OR circuit 16 such that if any AND circuit is energized a signal is applied to the buffer amplifier cathode-follower stage 18. The cathode follower output is applied if required via delay network 23 to a pulse-shaping regenerative amplifier tube 24 which operates in a blocking oscillator type circuit, a negative feedback voltage being provided from winding 28 and a positive feedback voltage from winding 26. Positive and negative pulse outputs are obtained respectively at output terminals 30 and 31. Phase displaced synchronizing signals are applied to the inputs 44-47 of an OR circuit 48 the output of which is applied via AND circuit 43 to the grid of tube 24 so that this tube can only conduct when a pulse is present simultaneously at both points 39 and 41. The pulse re-shaping is obtained by virture of the fact that if due to distortion the voltage at point 21 is considerably reduced or disappears tube 24 is maintained conductive due to the feedback voltage from lead 37, the tube only cutting-off when the pulse 41 ceases. In a modification shown in Fig. 2 the OR circuit 48 of Fig. 1 is replaced by four AND circuits 49-52 phase displaced synchronizing pulses, Fig. 3 (not shown), being applied selectively to terminals 44-47 the other terminals being connected to the feedback lead 37 so that the regeneration only takes place when a synchronizing pulse is present at one of the inputs. The outputs from AND circuits 49-52 are combined with the signal at terminal 21 in an OR circuit 54.
Patent GB-967484-A (GB)
Title: Thermocouples
IPC: G01K7/04
Filed: 1962-09-28
Abstract: 967,484. Thermocouples. GENERAL MOTORS CORPORATION. Sept. 28, 1962 [Oct. 2, 1961], No. 36871/62. Heading H1K. A thermocouple comprises a junction between two metal elements, the surfaces only of which are impregnated with boron. One of the elements may be an alloy consisting by weight of 0.1% silicon, 0.08% carbon, 0.8% manganese, 0.3% iron, 9.3% chromium, residue nickel and the other an alloy of 1% silicon, 0.8% carbon, 2% manganese, 2% aluminium, 0.3% iron, residue nickel, though other alloys based on iron, tungsten or rhenium may be used. The elements may be welded together, e.g. by percussion or ultrasonic welding, preferably before treatment with boron and subsequently annealed at 1800 F. for 30 minutes. Alternatively annealing is performed by the boronizing treatment. This may consist of electrolysis in molten sodium tetraborate, exposure to a gaseous mixture of boron triehloride and hydrogen, or heating at 1500-2150 F. in molten sodium tetraborate containing 5-20% by weight boron carbide. A thermocouple formed as above may be mounted as shown in Fig. 1 with the junction protruding from packed magnesium oxide 10 into the apertured lower end 26 of the mounting tube.
Patent GB-1082305-A (GB)
Title: Epoxy resin foams
Inventor: GLUCK DAVID GEORGE
IPC: C08J9/14
Filed: 1964-09-09
Abstract: Foam material is obtained from a solution of an epoxy pre-polymer containing a volatilizable foaming agent by adding a catalyst or a coupling agent whereby sufficient heat is generated to cause foaming. The pre-polymer is the reaction product of an epoxide having one or more epoxy groups and an amount of coupling agent, which may be the same as the agent used to produce the foam, or it may be different, such that the pre-polymer still contains unreacted epoxy groups. Coupling agents are polybasic organic acids, carboxylic acid anhydrides, amines, glycols, carboxyl terminated polyesters and alkyl acid phosphates.  A Lewis acid metal halide is the preferred catalyst and complexes such as ether complexes may be used, other catalysts include strong mineral acids. Halogen substituted alkanes are the preferred blowing agents.  Surfactants which may be incorporated in the foam product include polyoxyethylene sorbitan monolaurate, monopalmitate, monostearate and monooleate, a polyoxyalkylene block copolymer of ethylene and propylene oxides and a polyoxyalkylene alkyl silane copolymer.  Coupling agents which contain chlorine or which are phosphates also act as flame retardants.  Flame retardants specified include triethyl phosphate, tri(beta-chloroethyl) phosphate and chlorinated anhydrides such as chlorendic anhydride.  Other additives include aliphatic polyesters, hydrocarbons with a hydroxy group at each end and hydroxy terminated polyethers.  In the examples a series of prepolymers is prepared from an epoxy resin, being a condensation product of p,p1-isopropylidenediphenol (Bisphenol A) and epichlorhydrin, by using coupling agents such as alkyl acid phosphates, dibasic organic acids, p-toluidine and chlorendic anhydride.  The phosphates used are dibasic acids or mixtures of mono- and dibasic acids.  Dipentene dioxide and 3,4 - epoxy - 6 - methylcyclohexylmethyl 3,4 - epoxy - 6 - methylcyclohexanecarboxylate are also used in the examples to produce prepolymers. A mixture of (a) the propylene oxide adduct of tris(hydroxyphenyl) propane and (b) the propylene oxide adduct of glycerine may be used as a diluent for the catalyst and also serves as a plasticizer.  Uses.-Insulating material.
Patent GB-1512188-A (GB)
Title: Combined winch and boom assembly
IPC: B66C23/687
Filed: 1976-09-07
Abstract: 1512188 Boom and winch assembly BREEZE CORP Inc 7 Sept 1976 [29 March 1976] 37079/76 Heading B8B A boom and winch assembly particularly for a helicopter comprises a boom 21 with a cable pendant and a traction sheave 37 with a swingable cover 48, Fig. 3, at one end and a winch 20 with a readily replaceable drum 29 at the other end. The drum 29 is mounted on a driven output shaft 30 which extends laterally of the boom and has a threaded end to receive a knob 31. The knob is unscrewed to allow drum replacement. The traction sheave 37 includes a driven pulley in a housing 42, Fig. 3, to which the cover 48 is pivoted 50. The housing and cover have holes (54) 55, Fig. 4 (not shown), to receive a pin to hold the cover closed. The cover has a spring-urged roller 51 to press the cable on to the pulley. The cable pendant 65, is pivoted to the cover 48 by a shaft 64 located in elongated slots in the cover. The cable end carries a buffer (78), Fig. 2 (not shown), which displaces the pendant at the end of winding-in to actuate a limit switch 60 and stop the winch motor 28. If the cable breaks or has to be cut it can be replaced quickly and if the assembly is in a helicopter replacement can be performed in-flight. The drum is replaced and the cable is fed along the boom and over the traction pulley with the cover 48 pivoted open. The pendant 65 has a keyhole opening with an insert 74 of low friction material to facilitate rethreading.
Patent GB-1193715-A (GB)
Title: Improvements in and relating to Methods of manufacturing Semiconductor Devices
IPC: H01L21/285
Filed: 1967-08-14
Abstract: 1,193,715. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Aug., 1967 [17 Aug., 1966], No. 37169/67. Heading H1K. In a method of manufacturing a semiconductor device of the type comprising a chalcogenide applied to a substrate, zinc or cadmium vapour is deposited on the surface of the substrate prior to the application of the chalcogenide whilst the substrate is maintained at a temperature sufficient to inhibit the formation of a continuous or visible layer on the insulating portions of the surface. The zinc or cadmium combines with any oxygen which may be present at the surface of the substrate and which would otherwise adversely affect the electrical properties of the chalcogenide. In a preferred embodiment, applied to the manufacture of an insulated gate field effect transistor, a 0À1 Á layer of aluminium is vapour deposited on the surface of a glass substrate 21, Fig. 6, and removed, by etching and under-etching, to leave a pattern 34 a little narrower than the protective pattern 24 of photo-resist. A thin layer of chromium and a 0À1 Á layer 32 of gold containing 1% indium are then deposited through a suitable mask and the photo-resist 24 is dissolved in an ultrasonically vibrated acetone bath so that the part 42 of the layer 32 is removed to leave two parts 40, 41 spaced from the aluminium 34. The aluminium is next subjected to anodic oxidation to form an insulating oxide layer 50, Fig. 10, and the substrate is then masked and placed in a vacuum deposition apparatus (Fig. 12, not shown) where it is heated to between 20‹ C. and 350‹ C., preferably about 170-180‹ C., and exposed first to cadmium vapour alone and then to a mixture of cadmium and cadmium selenide vapour to form a layer 51 of cadmium selenide 0À2 Á thick. The cadmium vapour, as well as improving the substrate, is absorbed by the gold-indium alloy parts 40, 41 which form the source and drain electrodes of the transistor, the insulated gate being formed by the aluminium 39. The invention may be applied to the manufacture of other devices such as diodes and photo-cells.
Patent GB-302593-A (GB)
Title: Improvements relating to files for documents and the like
IPC: B42F21/06
Filed: 1928-12-17
Abstract: 302,593. Nordmann, (nÚe Pamme), K. Dec. 15, 1927, [Convention date]. Indexing.-In filing devices for papers in which the papers are placed in one of a number of covers k having flexible filing prongs d and supported from horizontal rods by means of hooked bars a, in place of index tabs or markers slidable along a looped part b on the cover, the part of the loop corresponding to the required index is cut awav as at i and a flat bar h of distinctive colour is threaded through the loop. The hanger bar a may be utilized for this purpose or a separate bar h is employed, as shown. According to the Specification as open to inspection under Sect. 91 (3) (a) the latter arrangement is used when the contents of the cover increase to book size and a bar a has to be provided at each edge of the back of the cover. This subject-matter does not appear in the Specification as accepted.
Patent GB-933861-A (GB)
Title: Improvements in supports for tunnels
Inventor: MARSDEN ANDREW
IPC: E21D11/15
Filed: 1958-11-19
Abstract: 933,861. Mine roof supports. STEEL PRODUCTS Ltd. Nov. 19, 1959 [Nov. 19, 1958; June 19, 1959], Nos. 37242/58 and 21149/59. Class 85. [Also in Group XXV] Mine roof supports are composed of two parallel sheets of wire mesh 2 held against spacers. The spacers may be metal strips 1 against both edges of each of which the mesh is held by clips 3. This double sheet may be in the form of an arch.
Patent GB-318451-A (GB)
Title: Improvements in and relating to helicopters
IPC: B64C27/26
Filed: 1928-12-18
Abstract: 318,451. Hess, J. E. Dec. 18, 1928. Helicopters; parachutes; propelling; planes and the like, arrangement and construction of. - A helicopter comprises a fuselage 1, two propellers 36, mounted on vertical spindles and driven by bevel gearing from a transverse shaft, front and rear elevators 6 and 7, a rudder 5, a vertical fin 29, a landing carriage 3, and an adjustable tail skid 25. The, propellers 36 consist of a number of blades or planes 40 radially disposed around a central spindle, the leading edge of each blade overlapping the trailing edge of the preceding blade. The complete propeller is concavo-convex in cross section and each blade is concavo-convex in both longitudinal and transverse cross sections. The. blades terminate at some distance from the vertical spindle so as to leave a central aperture; flaps 42, Fig. 7, hinged to the trailing edges of the blades 40 are arranged to close the spaces between the blades when the speed of rotation falls below a predetermined value, thus enabling the propellers to function as a parachute. Steering and balancing.-The elevators 6 and 7, Fig. 5, are operated by control levers 18 and 19; the handles of which may be interlocked to effect simultaneous actuation. The elevators 7 are so disposed that they may be employed to deflect a portion of the propeller slipstream on to the elevators 6, which latter can be set to tilt the aircraft to obtain forward motion. Stopping way.-The tailskid 25 is made adjustable for the purpose of raising or depressing the rear of the fuselage, when on the ground.
Patent GB-994698-A (GB)
Title: Rotary spherical fluid control valves
IPC: F16K5/06
Filed: 1961-10-18
Abstract: 994,698. Valves. HILLS-McCANNA CO. Oct. 18, 1961 [Oct. 26, 1960], No. 37390/61. Heading F2V. The rotary-spherical closure member 24 co-operates with a pair of opposed seats 26, 28 supported upon converging body surfaces 36, 38 around the inner ends of the fluid passages 14, 16, the member 24 being urged on to the seats by a spring 40 around the operating stem 32. Each seat comprises an annular seal 42 of deformable material, e.g. P.T.F.E., embodying a base part, slidably engaging one of the body surfaces 36, 38, and a concave face-part shaped to seal against the member 24; each seal 42 is confined by two L-shaped rings 48, 50, normally prevented from contacting either the adjacent body surface or the closure member 24 by the base and face seat parts which extend beyond the rings 48, 50. Should the seals 42 be destroyed by heat, the spring 40 urges the members 24 down the inclined surfaces 36, 38 until it engages and seals on the conical surface of each ring 48, the opposite faces of which are thereby forced against the surfaces 36, 38. The durability of the seals 42 is enhanced by dispersing an infuzible inorganic material, e.g. alumina, in the P.T.F.E.; a similar material is used for the seal 72 around the stem 32, which seal is contained within a well 74 in the bonnet 20. A metal-asbestos gasket 82 is interposed between the bonnet and the body.