baber/WOPTO huggingface dataset:
Patent GB-459880-A (GB)
Title: Improvements in and relating to light projectors for stroboscopic and other purposes
IPC: G01P3/40
Filed: 1935-07-17
Abstract: 459,880. Speed indicators. ASHDOWN, A. J., Feltham Avenue, East Molesey, Surrey. July 17, 1935, No. 20352. [Class 106 (iii)] [See also Group XX] Stroboscopic apparatus for observing moving bodies, or for estimating their speed, comprises a source of light with a reflector arranged to produce a beam of light which is concentrated on a concave mirror which is moved relatively to the beam, so that the reflected beam moves over a predetermined path and can be made to give intense intermittent illumination of the object to be observed. In the form shown, a housing 15 containing a source of light and a parabolic reflector is mounted at one end of a tubular casing 13, at the other end of which is a casing 4 containing means for driving at a controlled speed a concave mirror 10 having its optical axis at an angle to its axis of rotation so that the reflected beam passes periodically through an opening 14 of the casing 13. The driving means consists of an electric motor 7 connected by gearing 30, 31 to a stub shaft 32 which is geared to a shaft 44 carrying a slidable splined sleeve 45 to which are secured pinions 47 .... 51. By means of a striker arm 72 any one of these pinions can be engaged with its corresponding pinion 52 .. 56 on a shaft 60, the pinion 56 being geared to the spindle 64 of the mirror 10. The pinion 31 also engages a pinion 34 on a shaft 35 carrying a governor 36 bearing a brake disc 37 adapted for co-operation with a brake block the position of which can be adjusted by rotating a head 40 bearing a speed scale. Specifications 201,656, [Class 97 (i)], and 363,352, [Group XXXVIII], are referred to.
Patent GB-355888-A (GB)
Title: Improvements in or relating to plug couplings for use in combination with electric switches
IPC: H01R13/707
Filed: 1930-07-05
Abstract: 355,888. Plug and two-part couplings. TUCKER, J. B., Kings Road, Tyseley, Birmingham. July 5, 1930, No. 20401. [Class 38 (i).] In a combined switch and plug-coupling the socket a has two slots a<1> through which rollers d project to grip the plug frictionally, the rollers being wedged between the inclined faces b2 on the casing b and the plug f by a spring-pressed plate e. The extended pivot pin of the switch-operating handle h<2> has mounted on it a cam h<3> which, when the switch is in the " off " position, presses the plate e down in order to allow the plug to be inserted or removed. Balls or blocks may be used instead of rollers. A modified form for gripping a flat-blade contact has only one inclined face. Specification 319,058, [Class 38 (i), Electric couplings &c.], is referred to.
Patent GB-200384-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M17/14
Filed: 1922-07-26
Abstract: 200,384. Flower, J. W. July 26, 1922. Spray carburettors.-A suction-actuated hollow piston g open at its lower end and moving in a cylinder f admits air to a jacket space m whence it passes to a tube d to which fuel is admitted by a valve h, i the rod of which traverses the tube and is adjustably connected to the piston valve. The fuel-valve rod is so shaped that it tends to close the fuel passage j as the piston is raised. The piston and the cylinder in which at slides are provided in their walls with m unterlating or V- shaped ports n, k respectively connected by slotlike openings o, k<1>. The edges of the ports @ are bevelled. A heating jacket p connected to the exhaust or cooling water systems may be provided. The head portion i of the fuel valve cuts off the fuel when the piston is in its lowest position. Suction is transmitted to the piston through the tube d and space m and the valve rod may be a slack fit where it passes through the wall of the tube d.
Patent GB-261111-A (GB)
Title: Improvements in electric time switches
IPC: G04C23/22
Filed: 1925-08-15
Abstract: 261,111. Krout, P. Aug. 15, 1925. Clockwork actuation. - A time switch comprises a switch portion, Figs. 1 and 3, located at the bottom of a. cylindrical case a and a clockwork portion, Fig. 4, adapted to be fitted telescopically into the front of the case. The clockwork portion, Fig. 4, consists of an ordinary clock with hands z at the front and at the back a dial F<2> which rotates once in twenty-four hours and carries adjustable tappets H<2>, I<2>. The clock is held in position in the casing a by pins b engaging slots B<2> and by spring-pressed balls K<2> engaging sinkings M<2> and the dials F<2> is further guided by a pin s engaging a hole J<2>. The switch portion comprises a spring l which is wound up by turning the winding square c and which tends to rotate in a clockwise direction a drum i carrying contacts j which engage fixed contacts w. The drum i which is connected by a spring n to a star wheel m, is normally presented from rotating by one of the arms of the star wheel engaging a pallet Q<2> on a lever p pivoted at q. At a predetermined time, one of the tappets H<2>, I<2> engages a pin t on the lever p, which moves to release the arm of the star wheel which is then caught by a second pallet s<2> on the lever p and held until the tappet H<2> or I<2> has left the pin t and the lever p is returned to its original position by a spring. The star wheel m and drum i then rotate through 90‹ till the next arm of the star wheel engages the pallet Q<2>. The spring n during this movement acts as a buffer. A spring u offers resistance to the passage of the arms of the star wheel and so stops the switch in a definite " on " or " off " position when the spring is nearly run down.
Patent GB-597129-A (GB)
Title: Improvements in or relating to the production of a cocoa-sugar composition
IPC: A23G1/56
Filed: 1945-08-10
Abstract: A dry, powdery cocoa-sugar composition is obtained by adding cocoa, preferably heated to about 150 DEG  F., to a sucrose syrup, e.g. of 90-96 DEG  Brix, at a temperature of 250-320 DEG  F. with continuous beating, the weight of cocoa being, e.g. 25 per cent of the weight of sugar, and continuing the beating while allowing the mixture to cool.
Patent GB-1061409-A (GB)
Title: Urea-extended polyurethane foam
Inventor: BELAK STEVEN GEORGE
IPC: C05C9/00
Filed: 1964-05-19
Abstract: A plant feeding composition comprises a polyurethane foam extended with a free urea-containing fertilizer, a major proportion of the fertilizer being leachable from the foam by water.  The foam in the shape of cubes may be cast on the ground near the plants, dug into the soil or alternatively it may be moulded into the shape of a hollow cone which may be elevated over the plant with the base up.ALSO:A process for the preparation of a urea extended polyurethane foam comprises adding 5 to 80 weight per cent of urea or urea containing mixed fertilizer to at least one of the components to be used in the preparation of the polyurethane foam and thereafter carrying out preparation of the foam.  In an example urea is mixed with a prepolymer of a polyether, which is a condensation product of sorbitol with propylene oxide, and toluene diisocyanate and the whole is mixed with another component made by mixing a silicone oil surfactant, triethylene diamine as catalyst, additional polyether and trichloromonofluoromethane as blowing agent to form a foam.  The product may be used as a plant feeding composition, the urea being leached from the foam by water in the soil.
Patent GB-1421816-A (GB)
Title: Margin angle detectors for controlled rectifiers in electric  inverters
IPC: H02M7/162
Filed: 1973-05-01
Abstract: 1421816 Controlling inverters VSESOJUZNY ELEKTROTEKHNICHESKY INSTITUT IMENI V I LENINA 1 May 1973 20621/73 Heading H2F A device for determining the margin angle of a controlled rectifier in an inverter 22 comprises a flip-flop 4 arranged to be set by each control pulse for the controlled rectifier from a source 19 and to be reset by a detector 2, responsive to the change of polarity of the voltage across the controlled rectifier, the output of the flip-flop 4 being fed to an AND gate 5 arranged to pass a pulse from a detector 1, responsive to the passage through zero of the current in the controlled rectifier. As described, the invention is applicable to an inverter 22 feeding a D.C. transmission line. Flip-flop 4 is set by a pulse from source 19 and enables the AND gate 5 to pass a pulse from detector 1 responsive to passage through zero of the controlled rectifier current. This pulse sets a further flip-flop 3 which is reset by the zero voltage detector 2 and thus provides a pulse the duration of which is a function of the required margin angle. A converter 14 provides a voltage which is an analogue of the margin angle which is compared with a reference voltage 18 in an amplifier 16 and fed to the control pulse source 19 so as to change the margin angle towards the desired value supplied by reference 18. Current and voltage sensors 1, 2 from other controlled rectifiers may be fed in as shown in broken lines. In Fig. 2 (not shown), a sensor responsive to the current in the D.C. line is fed to a third input of AND gate 5 so that the system only operates as described when the line current is above a predetermined value. At lower current # is determined.
Patent GB-664877-A (GB)
Title: Means for mounting dynamic electric machines on or in association with internal combustion engines
Inventor: PRIDDLE ALBERT THOMAS CLAUDE
IPC: F16M5/00
Filed: 1949-08-09
Abstract: 664,877. Mounting dynamo-electric machines. C.A.V., Ltd. June 28, 1950 [Aug. 9, 1949], No. 20668/49. Class 35. A dynamo or starting-motor a has a flange c by which it is clamped to an internal combustion engine b by a separately formed clamping ring d which allows angular adjustment of the machine body. The clamping ring is secured by screws e and has recesses i on its inner periphery so that it may be slipped over the bosses h at which the flanged end cover f is secured to the machine body.
Patent GB-733041-A (GB)
Title: Improvements in and relating to woven textile fabrics
Inventor: LENTON AYLMER INGRAM
IPC: D03D1/00
Filed: 1953-07-27
Abstract: 733,041. Bed sheets. HAWORTH & CO. (MANUFACTURING), Ltd., R. Jan. 14,1954 [July 27, 1953], No. 20724/53. Drawings to Specification. Class 142(4). A bed sheet is reinforced by varying the density of the warp ends from a minimum at the edges of the sheet to a maximum at the centre. The variation is stepped, several inches of the width of the sheet having warp ends of a given density and the next few inches a slightly different density of warp ends. Specification 733,042 is referred to.
Patent GB-643650-A (GB)
Title: Improvements in variable condensers
IPC: F16C35/06
Filed: 1946-07-11
Abstract: 643,650. Bearings. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 11, 1946, No. 20737. Convention date, June 11, 1942. [Class 12 (i)] [Also in Group XXXVI] A variable condenser comprises a rotor mounted in two ball bearings at least one of which is a journal ball bearing having as its inner ball race an arcuate groove in the rotor shaft 7 having a radius of curvature which exceeds that of the balls 9 by 5 per cent at the most, and at its outer race a conical cup 4 having an opening angle between 38 and 48 degrees, the conical cup being axially adjustable relative to the rotor shaft, which is held against axial movement by the other of the two ball bearings, and there being no resilient elements to provide axial pressure in the bearings. As shown, the shaft 7 of a rotating plate condenser is supported at each end by cup-and-cone ball bearings adjustably screwed into a rigid cast framing 1 and held in the correct position by lock-nuts 5. The conical surfaces 6 of the bearings 4 are hardened, and inclined at an angle of 22 degrees 30 minutes with respect to the axis of rotation. Arcuate grooves 8 cut in the shaft 7 form the inner races and have a radius of curvature slightly exceeding, for instance by 2.5 per cent, the radius of the bearing balls 9.
Patent GB-183854-A (GB)
Title: Improvements in or relating to gas generators
IPC: C10J3/46
Filed: 1922-07-29
Abstract: 183,854. Babin, J. July 30, 1921, [Convention date]. Generators.-In a tubular gas generator powdered carbonaceous fuel preferably previously moistened with water is delivered by a feeding device 14 into a tube 5 having a portion 6 heated to incandescence. Compressed air from a pipe 4 is preheated by passage between the tube 5 and a jacket 2 and enters the tube 5 together with the fuel, and the gas generated passes down the tube and is sprayed with water from a nozzle 12 being thereby cooled and cleansed of ash and other impurities which collect in a tank 9, the gas being discharged from a pipe 11. A compressed-air motor 20 serves to drive the feeding-device. The jacket 2 may contain a boiler for supplying steam to the air and powdered fuel injected into the generator.
Patent GB-167491-A (GB)
IPC: F16B12/40
Filed: 1921-08-05
Abstract: 167,491. Wedemann, R. Aug. 6, 1920, [Convention date]. Joints.-In a joint for collapsable furniture, of the kind in which a downwardly directed pin c on the bar a engages the bar b, the latter bar having a slot d to accommodate the bar a, the pin c projects downwardly beyond the width of the bar a, thereby forming a hook which engages both a slotted and an unslotted portion of the member b. Fig. 6 shows a member b with two slots d<1>, d<2>, to accommodate the adjacent ends of two horizontal members, while in Fig. 7 the pins c<1>, c<2> are shown projecting upwards also at c<3>,< >c<4>, whereby an additional member b<1> may be connected. The pin c may be made hollow, to surround the bar b, as shown in Fig. 8.
Patent GB-1432537-A (GB)
Title: Packaging system
IPC: B65B7/28
Filed: 1973-08-17
Abstract: 1432537 Filling and closing containers OWENS-ILLINOIS Inc 17 Aug 1973 [22 Aug 1972] 20822/75 Divided out of 1432187 Heading B8C [Also in Division B4] The apparatus of Specification 1,432,187 is modified to produce groups of containers joined together by means of their covers, by the cutter (42) being arranged partly to sever the cover web between the containers so as to form the corner flaps which are then folded downwardly by a modified first folding station (44) and to perforate the web along the remaining connections between adjacent covers so that the containers can be subsequently detached from one another. The perforating portions of the cutter blades are recessed from the cutting portions. The second folding station is omitted.
Patent GB-900082-A (GB)
Title: Improvements in or relating to moulds for applying soles and heels to footwear
Inventor: BARKER GEORGE EDMUND
IPC: B29D35/00
Filed: 1960-06-14
Abstract: 900,082. Moulding soles on to footwear uppers. PIRELLI Ltd. June 14, 1960, No. 20858/60. Class 87(2). A mould for forming soles and/or heels and attaching them to footwear uppers includes a rigid one-piece cavity base plate 1 and a last 9, the cavity wall being provided with a continuous inwardly directed lip, the formation of which is such that it is possible to readily remove an article of footwear completed on the last from the base plate by a straight line movement of the last away from the base plate. The frame 2 which supports the base plate 1 incorporates a vertical cylinder 3 in which slides a piston 4, compressed air or a liquid pressure medium being admitted to or removed from the cylinder by way of a pair of conduits 5, 6. A bracket 8 is mounted at one end of the piston rod 7 and at the other end carries the last 9 to which an upper 10 of a shoe is applied. If the radius of curvature of the side walls of the mould cavity and the material, e.g. rubber or thermoplastic or thermosetting resin, from which the sole and heel portion 11 is to be made are correctly chosen, the vulcanised or cured portion 11 will undergo only a small degree of compression by the lip of the mould cavity and will not consequently be damaged upon withdrawal of the completed footwear. Specification 859,142 is referred to.
Patent GB-923101-A (GB)
Title: Conveyor bands for elevators or conveyors
Inventor: SAVAGE WILLIAM LAWRENCE
IPC: B65G17/06
Filed: 1958-06-30
Abstract: 923,101. Endless conveyers. BLACKSTONE & CO. Ltd. June 24, 1959 [June 30, 1958; Oct. 22, 1958], Nos. 20945/58 and 33858/58. Class 78 (1). A conveyer band for an endless conveyer or elevator comprises a pair of endless chains 1 and a series of transverse troughed carriers 6 attached to brackets 9 on the chains. Each carrier is formed from sheet metal pressed to provide reinforcing ribs 15, apertures 16 for escape of soil &c., and depending flanges 11, 12 of which the trailing flange 11 is deeper than the leading flange 12 so that when traversing an end sprocket the leading flange of one carrier can overlap the trailing flange on the next carrier. Some of the carriers may have upstanding pushers which may be in the form of a rubber strip 10 or a bar 17 secured by bolts 18. The bar 17 may be of flattened V-form in plan.
Patent GB-933619-A (GB)
Title: Improvements in or relating to traffic signal lamps
Inventor: QUILLIAM BARRIE
IPC: G08G1/095
Filed: 1961-06-10
Abstract: 933,619. Traffic signal lamps. FOREST CITY ELECTRIC CO. Ltd. April 16, 1962 [June 10, 1961], No. 21038/61. Classes 75 (2) and 75 (4). In a traffic signal lamp comprising a reflector 10, an electric light bulb 11 and a lens 12, a diffusing screen 13 constructed and arranged to diffuse the light only in a horizontal direction is secured to the lamp. The screen comprises a moulded glass plate bearing on one or both surfaces a series of verticallydisposed ridges of triangular section. Two or more such screens may be mounted in front of one another.
Patent GB-136625-A (GB)
Title: Improvements in Pipe Fittings.
Inventor: HAMILTON JOHN
IPC: E04F11/18
Filed: 1918-12-17
Abstract: 136,625. Hamilton, J., (Jackson, D.). Dec. 17, 1918. Rod couplings; junction-pieces. - Pipes are joined together at various angles to form rails for stair-cases &c. by means of fittings which comprise a spherical-shaped base member 1, which may be bored centrally to fit over one of the pipes of the rail, and which is bored with threaded holes 3 inclined to suit the angle at which a pipe is to be fitted, the pipes as p being secured in position by means of tubular members 4 secured bv countersunk screws 6 fitting the holes 3, and formed with fluted flanges 5 which are threaded to receive a screwed socket on the rail. A number of spherical members 1 may be formed on each upright of the banister, and these uprights may be secured to the floor by means of semi-spherical brackets 7 bored centrally to receive the uprights, and formed, if desired, with holes as 3 for securing an inclined rail by means of fastening-devices as 4, 5, 6. The upper rails may be secured to the wall by means of a sphere connected by a screw to a wall bracket 10. The inner edges of the tubes and the members 4 are preferably cut away slightly to fit the spherical base accurately.
Patent GB-775190-A (GB)
Title: Improvements in and relating to electroluminescent lamps
IPC: H05B33/10
Filed: 1954-07-19
Abstract: 775,190. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. July 19, 1954 [July 21, 1953], No. 21044/54. Class 39(1). An electroluminescent lamp of curved shape for signal lighting, film viewing, &c. is made by heating an assembly of a flat glass plate 1, a conductive coating 2 and a layer 7 comprising electroluminescent and ceramic materials in powder form and bending whilst hot, in a mould. A second layer 13 or further layers of powdered ceramic and luminescent material may be applied and fired in the mould before or after pressing. Prior to firing and moulding, a narrow strip 5 of coating 2 is removed and strips 8, 9 of firing silver ink painted on to the exposed coating 2 and the bared strip 5 respectively. After firing, the glass is cut into portions by means of a silicon carbide cutter, masking tape applied to the edges and to the strip 9, and aluminium or other metal vaporized on to the light producing layer and terminal strip 8. Transparent conductive material may be used and it may be covered with a reflective paint or ceramic layer 7. Additional ceramic layers free of luminescent material may be applied. The surfaces may be concave or convex. Specifications 731,364, 731,367 and 733,260 are referred to.
Patent GB-1015872-A (GB)
Title: Improvements in or relating to expandable polystyrene
IPC: C08J9/00
Filed: 1964-05-21
Abstract: An expandable thermoplastic composition is prepared by passing polystyrene, powdered polyethylene, the quantity of polystyrene used exceeding the quantity of polyethylene used, and a blowing agent boiling below the incipient softening point of the polystyrene through a screw extruder in which the polystyrene and polyethylene become molten, extruding the molten composition at a temperature greater than the softening temperature of the polystyrene and polyethylene before they have had an opportunity to expand, and quenching the extruded mixture to a temperature less than the softening temperature of the polystyrene and polyethylene.  The expandable thermoplastic composition so produced may be pelletized before moulding.  Instead of adding the blowing agent separately to the composition it may be incorporated in the polystyrene prior to mixing in the extruder. Suitable blowing agents are aliphatic hydrocarbons boiling between 20 DEG  C. and 100 DEG  C., e.g. pentane.  In addition pellets of the expandable composition may be coated with a multi-component blowing agent of citric acid monohydrate and sodium bicarbonate prior to the moulding process. The compositions are described as being moulded in the shape of bottles and boards.