baber/WOPTO huggingface dataset:
Patent GB-644072-A (GB)
Title: Improvements relating to arrangements for selecting different signals in thermionic valve circuits
Inventor: STEPHENSON GEOFFREY HUSON
IPC: G06G7/14
Filed: 1947-10-07
Abstract: 644,072. Calculating-apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 7, 1947, No. 26870. [Class 106 (i)] [Also in Group XL (c)] An analogue electrical calculator for evaluating f(x) using the approximate formula giving the value of f(x) when x=x n +#x as employs the circuit shown in Fig. 1 and comprising voltage sources E1 ... E6 connected to the segments 5, 6, 7 of a rotary switch of the make-before-break type. The output line 2 from the switch is connected through a thermionic amplifier 1 to a load impedance 15. Separate negative feed-back paths through equal resistances 14 are provided from the output side of the amplifier to the switch segments 5, 6, 7. The amplifier thus operates with a low effective input impedance and the voltage E0 across the load 15 when the switch arm is on, e.g. segment 6 in proportional to E2+E3+E4, and when the switch arm bridges two segments 6, 7 is proportional to (E2+E3+ E4+E5+E6)/2. The analogue calculator is shown in Fig. 2 and produces an output E0 proportional to the value of a given function of x as x varies through a given range. The rotary switch 4 is provided with a large number, e.g. 100, segments. The segment Cn, for example, is connected to three voltage sources 19, 20, 21, proportional to the value assumed by f(x), f<SP>1</SP>(x) and f<SP>11</SP>(x) when x=n. The f<SP>1</SP>(x n ) source 20 is applied to the rotary switch 4 through a potentiometer 29 which multiplies the voltage value by #x. The voltage f<SP>11</SP>(x n ) is similarly multiplied by (#x)<SP>2</SP>/2 by a potentiometer 30. The potentiometers 29, 30 are driven by the means 28 which drive the switch 4 so that #x changes from, say -k/2 to +k/2 as the contact 4 moves over the segment Cn. An amplifier 1 with separate negative feedback paths 14 to each switch segment is provided as in Fig. 1. Thus and thus varies approximately as the value of f(x) as x changes over the range x n  - k/2 to x n +k/2. The next segment Cn+1 is similarly connected to sources proportional to f(x n + 1), f<SP>1</SP>(x n +1), f<SP>11</SP>(x n +1), i.e. the values of f(x), f<SP>1</SP>(x) and fll(x) when x=n+1. The difference between xn and x n  +1= k and EO thus changes smoothly as the switch arm rotates. Functions of more than one variable can be evaluated by connecting to each switch segment a corresponding number of voltages sources of appropriate values.
Patent GB-1517564-A (GB)
Title: Process for preparing gel polymer of vinyl compound and gel polymer thereof
IPC: C08F2/10
Filed: 1975-06-25
Abstract: 1517564 Gel polymers; redox catalyst, Fe<3+>,Ce<4+>/SxOy<2-> MITSUBISHI RAYON CO Ltd 25 June 1975 [5 July 1974 11 July 1974] 26886/75 Heading C3P Gel polymers are prepared by aqueous polymerization of a water-soluble or dispersible olefinic monomer using a redox catalyst comprising (a) a Fe<3+> or Ce<4+>-ion producing material, (b) an organic complexing agent therefor which contains an -OH, amino -NR4<+>, -CHO or -SH group (or precursors therefore), and (c) a compound capable of producing the anion SxOy<2->, where x= 1, 2, 3 ... 6 and y = 1, 2, 3 ... 7. In the examples, compound (c) is SO2, sodium, potassium or ammonium sulphite or bisulphite, sodium thiosulphate, sodium dithionite, sodium pyrosulphite, sodium pyrosulphate, sodium tetrathionate, sodium metabisulphite, sodium hydrosulphite, sodium hydrosulphate, sodium benzenesulphinate, sulphuryl chloride, sodium dodecanesulphinate and dimethyl sulphoxide. The monomers employed in the examples are acrylic acid, methacrylic acid, acrylamide, N-butoxymethyl acrylamide, N,N-methylene bisacrylamide, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, 2-(1- arizidinyl)ethyl acrylate, dodecyl methacrylate, tetraethylene glycol dimethacrylate, phthalic acid di-(diethylene glycol methacrylate) dimethylaminoethyl methacrylate, sodium 2- sulphoethyl methacrylate, itaconic acid, disodium itaconate and styrene. Polymerization may occur on the surface of a rusty steel plate to bind the rust.
Patent GB-1017649-A (GB)
Title: Vehicle safety device
IPC: B60J5/04
Filed: 1963-07-09
Abstract: 1,017,649. Vehicle safety devices. L. D. M. DRAPER. June 29, 1964 [July 9, 1963], No. 27032/63. Heading B7H. When the doors of a vehicle are opened or unlatched microswitches in the door jambs operate relays to break the ignition circuit and light an offside or nearside warning lamp Buzzers may be provided to act in conjunction with the warning lamps or a single lamp only may be provided.
Patent GB-1475956-A (GB)
Title: Gear pump or motor
IPC: F04C15/00
Filed: 1975-06-26
Abstract: 1475956 Externally-meshing gear pumps and motors RELIANCE ELECTRIC CO 26 June 1975 [9 Sept 1974] 27132/75 Heading F1F An externally-meshing gear pump or motor has an insert 90 for sealingly engaging an axial end-face of the gears in the region of intermesh, the insert being located in a recess 92 in the associated endplate, with a seal 106 in grooves 108, 110 of the insert engaging the base of recess 92 so as to form two chambers 102, 104 behind the insert which communicate via bores 99, 100 with low and highpressure sides respectively of the end-face of the gears.
Patent GB-297475-A (GB)
Title: Adaptor for detonating fuses or instantaneous matches
IPC: F42D1/04
Filed: 1928-09-21
Abstract: 297,475. Etablissements Davey, Bickford, Smith, et Cie. Sept. 23, 1027, [Convention date]. Blasting fuzes.-Relates to perforated cylinders of explosive adapted to transmit detonation from a primer or detonating fuze cord to one or more detonating fuze cords inserted in the perforations. According to the invention, the perforations extending from opposite ends of the cylinder are arranged in staggered formation and overlap each other, and the cylinder may be enclosed in a casing and the mouth of the holes be protected by washers. As shown in Figs. 3 and 4, the cylinder 1 has an axial hole 2 and three other holes 3 extending irom one end of the cylinder, and three more holes 4 extending from the other end in between the holes 3. The cylinder is enclosed in a metal casing 5 with end plates 6, 7; and the mouths of the holes are covered by washers 9, 10 of paraffin paper, or cloth backed paper, or gummed cloth, which may be easily torn off. Teeth or claws may be provided at the edges of the mouths cf the holes to secure the primer or fuzes inserted therein. The end plates 6, 7 may be soldered to the casing 5 or secured by a Chatterton band.
Patent GB-646326-A (GB)
Title: Improvements in tool holders for lathes
IPC: B23B29/10
Filed: 1948-10-20
Abstract: 646,326. Turning. FATHERS, G. P., and SMITH, C. Oct. 20, 1948, No. 27209. [Class 83 (iii)] A lathe tool holder comprises a tenon 10 or base plate for insertion in, or mounting on, the guide groove 32 of a bed or slide and having projecting upwardly therefrom a post 11 on which is mounted a block 14 having grooves to receive the tool shank 17 which is locked therein by means of screws 18, the block being adjustable vertically on the post by means of a screw 23 which is mounted in a lug 22 of a ring 21 mounted on the post and engages a threaded hole 24 in the block 14, the screw 23 being prevented from moving in an endwise direction. The block 14 is split radially at 19 so as to be adjustable around the axis of the post and is tightened on the post by means of a screw 20.
Patent GB-1424108-A (GB)
Title: Rust inhibiting coating compositions
IPC: C09D191/06
Filed: 1973-06-07
Abstract: 1424108 Bituminous coating composition E MORADIAN 7 June 1973 27216/73 Heading C3N [Also in Divisions C4-C5] A coating composition for metallic surfaces comprises 10-60 wt. per cent microcrystalline wax having a melting point of at least 150‹ F., 2À5-25 wt. per cent of a mixture of naphthenic and paraffinic oils, said mixture comprising 5-95 wt. per cent of a paraffinic oil which has at least 55% paraffinic carbon atoms and 95-5 wt. per cent of a naphthenic oil having 30-45% naphthenic carbon atoms, 0À01-15 wt. per cent of an oil soluble alkali metal sulphonate having a molecular weight of 400-550, 16-50 wt. per cent of a naturally occurring asphaltite, 2-25 wt. per cent of a drying oil, 2-5 wt. per cent of a high molecular weight naphthenic acid having an average molecular weight in the range 290-420, and 3-60 wt. per cent of a solvent for the asphaltite. The drying oil may be boiled linseed oil or process marine oil, and the solvent may be mineral spirit, xylol, toluol or mixtures thereof. The naturally occurring asphaltite may be vintaite. The composition may be modified by adding colouring agents and aluminium paste.
Patent GB-1477844-A (GB)
Title: Electromagnetic switch matrix device
IPC: H03K17/00
Filed: 1974-06-19
Abstract: 1477844 Electromagnetic relays; electric selectors NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP and NIPPON ELECTRIC CO Ltd 19 June 1974 [20 June 1973] 27252/74 Heading H1N A cross-point matrix of rows and columns with an electromagnetic reed relay at each crosspoint has four winding means on each relay, the first and second windings being connected in a row control circuit, the third and fourth windings being connected in a column control circuit and the windings are connected so that on energization the second and third winding flux opposes that of the first and fourth, the second and third windings being capable of being selectively short circuited. The windings 3, 4, 5, 6 may have an equal number of turns and windings 3, 5 surround one reed whilst the windings 4, 6 surround the other. The reeds or part 2 of the relay magnetic circuit are remanent. When a pulse is applied to a row and column such as by closure of switches YS1 and XS1 with a switch S open all relays windings on the row and column are magnetized to produce equal and opposite magnetization, however if the switch S is closed the connection via switch S and diodes DY1 and DX1 short-circuits windings 4 and 5 so that relay X1, Y1 receives a magnetization pulse twice that received by the other X1, and Y1 row and column relays. Individual windings 3, 4, 5, 6 may surround each contact unit or coils 23, 24 (Fig. 10) may be common to the row of relays and coils 25, 26 may be common to a column of relays. The coils may surround remanent cores 41 which extend into a common sealed chamber 40 and form fixed contacts for cooperation with respective spring mounted armature contacts 43.
Patent GB-930141-A (GB)
Title: Apparatus for mixing and agglomerating pulverulent to granular materials
IPC: B01F7/00
Filed: 1959-08-10
Abstract: 930,141. Mixing appliances. F. DIERKS, F. W. DIERKS, and W. DIERKS. Aug. 10, 1959 [Aug. 9, 1958; April 4, 1959], No. 27335/59. Class 86. A batch mixing apparatus especially for agglomerating synthetic plastics has a container 6 with a downwardly curved bottom 7 having a fixed coaxial tapering hub 8 in which is mounted a shaft 5 rotatable in a predetermined direction and detachably carrying three super-imposed sets of blades 9, 10, 11, each set consisting of two or more equally spaced blades. The bottom blades 9 extend downwardly and outwardly close to the hub and the container bottom and are angled to direct material away from their associated surfaces; the middle blades 10 are horizontal and angled so that their inner third directs the materials downwardly and their outer two-thirds, upwardly; the top blades 11 are upwardly inclined and angled to urge the material outwardly. The container has a cover 13 with a tapered depending central portion 14 in the form of a surface of revolution through which may pass an inlet 18 for a liquid additive which may be a plasticizer. A spray device for the liquid may comprise a disc 16 having radial channels formed between ribs 17 and mounted on the blade securing nut 15. There may be a container jacket for a heating or cooling medium.
Patent GB-442561-A (GB)
Title: Improvements in starting means for capacitor type single-phase induction motors
IPC: H02P1/44
Filed: 1934-09-24
Abstract: 442,561. Control of A.C. motors. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and BALL, R. D., and ROBERTS, L., Phoenix Works, Bradford. Sept. 24, 1934, No. 27391. [Class 38 (iii)] The capacity in the starting, winding circuit of a single-phase capacitor type induction motor is reduced, as the motor speeds up, by means comprising a condenser 3 in series with the starting winding 2, a normally open single-pole switch 4 in series with the winding and the condenser, an operating coil 4a connected in circuit with the running winding 1 or both the running and starting windings, which operating coil closes the switch 4 in response to the normal starting current and allows it to open again when the motor current falls below a predetermined value, and a further condenser 5 in parallel with the switch contacts alone or both the switch and the condenser 3, providing an alternative circuit for the starting winding when the switch is open. Discharge resistance 6 may be connected across the condenser 3. In order to protect the motor from continuous excessive starting current in the event that the motor fails to start properly, the coil 4a may operate a further switch which closes after a time interval, and effects the disconnection of the motor from the supply.
Patent GB-756521-A (GB)
Title: Improvements relating to optical mirror systems
IPC: G02B17/08
Filed: 1954-09-22
Abstract: 756,521. Optical systems; photographic cameras. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. Sept. 22, 1954 [Sept. 23, 1953], No. 27425/54. Classes 97 (1) and 98 (1). An image-forming mirror system for use with linear magnification or reduction of less than 1 : 5 comprises a concave spherical mirror axially aligned with at least one correcting element, and a plane mirror perpendicular to that axis, light from the long conjugator focus of the system being reflected first by the outer zone of the plane mirror and then by inter zone of the concave mirror to form an image. The Figure shows the system applied to a camera for indirect X-ray photography in which the image of a fluorescent screen 2 is formed on a film 8 by the optical system. This comprises a negative meniscus lens 3 forming the correcting element which receives the light from the screen 2. After passage through a conical lens 4 the light is reflected by the inter zones of a plane mirror 5 on to the concave mirror 6 which focuses the light upon the film 8. Baffles 12, 13 are provided to prevent direct light from the screen 2 reaching the film. The correcting element may be located between the concave and plane mirrors. Specifications 637,645 and 638,975 are referred to.
Patent GB-769586-A (GB)
Title: Method and means for casting ingots in the presence of exothermic products
Inventor: NOUVEAU HENRY
IPC: B22D7/10
Filed: 1954-09-24
Abstract: 769,586. Ingot-moulds. DOITTAU PRODUCTS METALLURGIE. Sept. 24, 1954, No. 27625/54. Class 83 (1). A method of casting ingots consists in laying along at least part of the wall of the ingot-mould 1 a lining 7 of agglomerated exothermic products, while leaving an at least partly gaspermeable heat-insulating layer 10 between at least part of the exothermic lining and the inner wall of the ingot-mould. The lining is made in four parts and is secured by heat-resisting adhesives to ribs 5 on the top 1. Alternatively, the ribs may be formed on the linings.
Patent GB-281457-A (GB)
Title: Improvements in or relating to tyres for use on motor road and other vehicles
IPC: B60C11/04
Filed: 1926-11-04
Abstract: 281,457. Rapson, F. L. Nov. 4, 1926. Tread bands, pro. jections, and surfaces. -A tyre cover, particularly of the kind described in Specification 229,166, the casing of which has a flattened tread portion b, is formed with a reserve tread e adapted for use when the narrower primary tread f is worn away. The tread f is formed with continuous circumferential ribs i and intermediate ribs k having spaced transverse grooves j. The grooves j extend in to the top tread f only, but the circumferential grooves g extend into the lower tread e. The latter is formed at its extended side portions m with spaced transverse grooves n. Specification 281,453 also is referred to.
Patent GB-279460-A (GB)
Title: Valve arrangement for fluid transmitting plants provided with meters
IPC: F16K1/00
Filed: 1927-10-19
Abstract: 279,460. Siemens & Halske Akt.-Ges. Oct. 20, 1926, [Convention date]. Liquid meters.-A. valve device for use in connection with liquid meters has a valve controlling a branch conduit actuated by the flow of liquid through the main conduit and arranged so that the branch conduit is closed when there is a full flow through the main conduit. In the form shown in the Figure the valve m controlling a conduit n leading to the accumulator or storage tank is connected by a lever o pivoted at p to a spindle carrying a valve a. The valve a seats on the end of the inlet pipe and has a central aperture d so that when the flow is small the valve closes but permits liquid to pass through the aperture d into the casing c and out through the conduit n. In a modification, the two valves are arranged on a common spindle, and in a further modification a third valve closes the entrance to the pipe k leading to the meter when the valve m is open.
Patent GB-192132-A (GB)
Title: Improvements in or relating to talking-machines
IPC: G11B17/00
Filed: 1921-10-20
Abstract: 192,132. Billing, N. Pemberton-. Oct. 20, 1921. Power-storing mechanism; treadle mechanism. - Consists in pedal mechanism, for winding the driving-spring of a gramophone or the like comprising a pedal-moved member connected to the winding-spindle through a free-wheel or equivalent clutch. In the construction shown in Fig. 2, the mechanism comprises a vertically sliding pedal 10 attached' to a chain 15 passing over a sprocket-wheel 16 which is connected by free-wheel mechanism to a larger sprocket 21 geared by a chain 22 to the winding- spindle 24 of the motor. A spring 17 returns the pedal to its initial position. The modification shown in Fig. 3 employs a coarse-pitch screw 44 which is geared to the winding-spindle 24 and is driven by a nut 43 mounted in a vertically sliding cross-piece 42 connected to a pedal 10. The exterior of the nut 43 is coned and fits a correspondingly coned hole in the cross-piece so that during the working stroke of the pedal the nut is prevented from rotating by friction, but during the return stroke it can rotate freely.
Patent GB-362045-A (GB)
Title: Improvements in shutters for photographic cameras
IPC: G03B9/48
Filed: 1930-09-18
Abstract: 362,045. Phatographic shutters. BETTLES, A. E., 71, Sirdar Road, Wood Green, London. Sept. 18, 1930, No. 27913. [Class 98 (i).] A shutter, especially for use with the reflex camera described in Specification 359,656, comprises two shutter members carried by separately pivoted members having their axes parallel to the sensitive surface, the exposure being effected by moving the shutter members to a set position and returning them one in advance of the other. In the form shown the shutter comprises two blades 41, 42 hinged to plates 43, 44 pivoted at 51 and 50 and forming with them a box-like structure open at the front end. The free edges of the blades 41, 42 run in grooves 48 in the camera walls and a lip 49 is provided on the blade 41 to engage the blade 42. The pin 50 bears a lever 59, Fig. 7, carrying a roller 63 and the pin 51 bears a cam plate 62, a disc 54 and a handle 36. To make the exposure the handle 36 is turned, raising the plate 43 and hence the blades 41, 42 into the position shown in Fig. 5. The cam plate 62 engages under the roller 63 and a pin 53 on the disc 54 engages a trigger piece 33. When the trigger 33 is tripped by the release 17, the plate 43 is returned to the lower position, the return of the plate 44 being delayed until the cam plate 62 moves clear of the roller 63. For a time exposure, a catch 40a on a lever 38 is lowered to engage a pin on the lever 59.
Patent GB-323267-A (GB)
Title: Improvements in, and relating to, cutlery and the like
IPC: B26B3/02
Filed: 1928-09-29
Abstract: 323,267. Lees, N. E. Sept. 29, 1928. Table knives.-In a knife wherein the blade a is hollow ground on one face f adjacent the cutting edge c, the hollow d is made deepest at the part mainly used for cutting purposes. In a table knife, which tapers, in thickness both longitudinally and transversely, the hollow gradually increases in depth from near the holster e to the end of the blade, where it is continued partly around the point. The face f may be flat or convex above tre hollow, while the opposite face g its vonvex.
Patent GB-688156-A (GB)
Title: Improvements relating to vehicle body or frame construction
IPC: B62D25/20
Filed: 1950-11-15
Abstract: 688,156. Road vehicle bodies. BARENYI, B. Nov. 15, 1950 [Jan. 22, 1949; Feb. 1, 1949], No. 27992/50. Class 108 (i). [Also in Group XXXI] A base-plate which may form part of a combined body and chassis construction comprises a floor E, arched downwardly, with the ends El, E<2> bent obliquely upwards to form transverse end walls and stiffened by longitudinal open-section girders d<1>, d2 and f secured as by spot-welding to the floor E. The side sills may be stiffened by transverse members d<3> preferably welded at the points of penetration. The central stiffening member f may be on the underside of the floor or the floor may have a channel formed in it closed by a flat plate. A separate floor spaced from the plate E may also be provided.
Patent GB-1047754-A (GB)
Title: Improvements in or relating to thermostatically controlled valves
IPC: G05D23/08
Filed: 1963-07-15
Abstract: 1,047,754. Valves. KLEIN, SCHANZLIN & BECKER A.G. July 15, 1963 [July 21, 1962], No. 27993/63. Addition to 980,926. Heading F2V. [Also in Division F4] A thermostatically-controlled regulating valve for discharging condensate from a high-pressure vapour flow line when the condensate temperature falls below a selected value comprises a valve body 1, Fig. 1, containing a condensate collecting chamber having an inlet bore connectable to the line and an outlet for exhausting condensate from the chamber, a valve seat 4 arranged around the outlet and disposed between it and an outlet duct 7, a valve closure member 3 movable axially inside the duct towards and away from the valve seat during opening and closing of the valve, a thermostat inside the chamber for varying the force with which the closure member is urged towards the seat in accordance with the chamber temperature, and an element 5 disposed in the duct 7 downstream of the closure member and forming one side of a clearance of variable cross-section dependent on the temperature of the discharged condensate, the element being so arranged that the clearance cross-section decreases with increasing condensate temperature and is always such that the cross-section of the clearance is insufficient to result in vaporization of discharged condensate upstream thereof. The element 5 consists of a concave bi-metallic disc having a radius of curvature which varies with temperature. In Fig. 3, the element 5 is replaced by an annular bi-metallic element 10 while in a further modification it consists of a frusto-conical element rigid with and beneath the member 3 to co-operate with a tapered portion of the bore 6.