baber/WOPTO huggingface dataset:
Patent GB-684218-A (GB)
Title: Improvements in or relating to arch construction
IPC: E04B7/08
Filed: 1951-05-25
Abstract: 684,218. Arches; roofs. DAKIN, E. L. May 25, 1951. No. 12342/51. Class 20 (iv). A catenary arch which may form part of a roof is built up of tiles or blocks which engage each other at the longitudinal joints over their whole thickness and which are subjected to compressive forces additional to those due to the weight of the arch by a series of tensioned straps which are placed at intervals along the arch, the additional forces providing extra stability to resist superimposed forces on the arch. In the form shown in Fig. 1, the arch is constructed from hollow blocks 10 and a number of straps 14, spaced about 4 feet apart, are placed over the arch and tensioned by bolts 17 which draw together flanges 15 which are formed at the strap ends and at the ends of anchor members 19. Fig. 5 shows part of a tiled roof supported by an arch constructed in the above manner. To support the tiles, battens 21 are provided, the battens resting on flanges which project upwardly from the straps 14. The upper part of the roof is extended tangentially from the arch to the ridge to give sufficient fall for drainage.
Patent GB-844104-A (GB)
Title: Improvements in or relating to the preparation of ethylene sulphite
Inventor: GIBSON GEOFFREY MOORHOUSE
IPC: C07D327/10
Filed: 1958-04-18
Abstract: A polymer of ethylene sulphite <FORM:0844104/IV(a)/1> is prepared by maintaining ethylene oxide and sulphur dioxide or the adduct of formula C2H4O,SO2 in contact with an amine catalyst in a medium of ethylene sulphite.  Preferably about equal weights of the ethylene sulphite and the sum of the weights of the reactants, or the adduct, are used at about atmospheric temperature.  Some polymer is preferably present in the initial medium.  The exothermic reaction may be controlled by immersing the reaction vessel in water which is allowed to warm up spontaneously as the reaction proceeds.  The adduct which volatalises during both polymerization and depolymerization may be absorbed in ethylene sulphite and the mixture used in another run.  Diethylaniline and pyridine are specified catalysts.ALSO:Ethylene sulphite <FORM:0844104/IV(b)/1> is prepared by maintaining ethylene oxide and sulphur dioxide or the adduct of formula C2H4O,SO2 in contact with an amine catalyst in a medium of ethylene sulphite to produce a polymer, thereafter heating the mixture to a temperature above 140 DEG C. to produce ethylene sulphite and separating the ethylene sulphite by distillation. Preferably about equal weights of the ethylene sulphite and the sum of the weights of the reactants, or the adduct, are used at about atmospheric temperature.  Some polymer is preferably present in the initial medium.  The exothermic reaction may be controlled by immersing the reaction vessel in water which is allowed to warm up spontaneously as the reaction proceeds.  The adduct which volatalises during both polymerisation and depolymerisation may be absorbed in ethylene sulphite and the mixture used in another run. Diethylaniline and pyridine are specified catalysts.
Patent GB-788186-A (GB)
Title: Improvements in motor vehicle driving unit mountings
IPC: B60K5/12
Filed: 1955-04-29
Abstract: 788,186. Mounting engines. POPELAR, V., and RONNERT, J. April 29, 1955 [June 12, 1954], No. 12461/55. Class 79(3) In a motor vehicle having a self-supporting body a driving unit, which comprises the engine 1, clutch, change-speed gear 2 and differential gear and is connected to the driving road wheels by swinging half axles, is mounted in the body by means of a transverse vertical resilient ring 8 arranged near the centre of gravity T of the unit. As shown the invention is applied to a rear mounted unit and the mounting also comprises a resilient ring 6 disposed at the front end of the unit, the invention being alternatively applicable to a front mounted unit. Each resilient ring is formed by upper and lower halves and is mounted in a casing, the upper part of which is secured to the body and the lower part of which is bolted to the upper part.
Patent GB-124696-A (GB)
IPC: E06C1/00
Abstract: 124,696. Boyd, D. S. Dec. 17, 1918. Ironing boards and tables. - The table shown in Fig. 2 is convertible into the stepladder shown in Fig. 1, the long narrow table top, which is suitable for use as an ironing board, being pivoted to a frame 4, the strut 7 of which forms the bottom step of the ladder and the board 1 the back stay thereof. Within the frame 4 is pivoted at 5 the ladder portion 6, one end of which engages with a stop 10 on the underside of the board 1 when used as a table, and it is provided with hooks 9 which are engaged by a pivoted loop 8 or other support carried by the board 1 to act as a strut cr tie-piece when used as a ladder.
Patent GB-722006-A (GB)
Title: Infra-red transmitting mirror
IPC: G02B5/28
Filed: 1951-05-28
Abstract: 722,006. Mirrors. SCHROEDER, H. May 28, 1951 [Dec. 27, 1948], No. 12470/51. Class 97 (1). A mirror comprises a support and a reflector superimposed on a surface thereof, said reflector consisting of at least one multi-layer interference film having alternate layers of high and low refractive index, each layer having an optical thickness approximately equal to one-quarter of the wavelength 550 mÁ so that minimum reflection occurs in the near infra-red region and amounts to less than 20 per cent while at least 80 per cent of the visible light is reflected. The support may be of glass and each high index layer may be of a material having an absorption coefficient equal to or smaller than 0.25 in the visible spectrum. In one mirror, the high refractive index layers are of antimony sulphide and the low index layers are of cryolite and the surface of the film may be protected by a coating of colourless lacquer or by a coating as of magnesium fluoride about 280 mÁ thick. To increase the reflection in the short wave region below 500 mÁ a substance, such as thallium sulphide, silicon or cadmium telluride, with an absorption coefficient greater than 0.10 in the visible spectrum may be used for the layer contacting the support. The mirror shown comprises a glass support 101 having thereon a film comprising high refractive index layers 14 as of zinc sulphide or thallium iodide and low index layers 15 as of cryolite or magnesium fluoride. Upon this film is deposited a layer 16 as of magnesium fluoride and having an optical thickness of approximately 412 mÁ. A further film is deposited on layer 16, this film having high index layers 17 and low index layers 18, each of these layers having an optical thickness different from the corresponding layer of the first film by at least 10 per cent. The thicknesses and refractive indices of the film may be so chosen that with an angle of incidence of at least 50 degrees on the top layer the intensity of that component of the light which vibrates parallel or perpendicular to the plane of incidence is suppressed after reflection so that substantially linearly polarized light is reflected. Specification 698,058 is referred to.
Patent GB-1162494-A (GB)
Title: Liquid Fuel Injection Pumping Apparatus for Supplying Fuel to Internal Combustion Engines.
Inventor: KEMP KENNETH ALBERT WALTERS
IPC: F02M41/14
Filed: 1966-03-22
Abstract: 1,162,494. Fuel injection pumps. C.A.V. Ltd. March 1, 1967 [March 22, 1966], No. 12494/66. Heading F1A. In a fuel injection pump a shuttle piston 17 is moved in a bore 14 by liquid pressurized by pistons 12, to discharge fuel to an outlet 15 connecting successively with discharge parts 16, each of which may be fitted with a pressure relieving valve 31; alternatively a single relieving valve may be fitted in the bore 14 or outlet 15, flow from a feed pump 13 to the bore at opposite ends of the shuttle is proportioned by a throttle valve 30. The stroke of the shuttle is limited by a stop 19. In the embodiment shown the shuttle has a circumferential port which at a given point communicates with spill ports 20 at which injection ceases; when the shuttle engages the stop 19 pressure in the actuating end of the bore 14 is relieved through a spring-loaded valve 23 to the ports 20. In a further embodiment there is no connection between the injection end of the shuttle and the circumferential port so that injection is terminated when the shuttle engages the stop 19. In a further embodiment the valve 23 may be replaced by a valve mechanically actuated by engagement with the stop 19. The valve 23 may be replaced by a valve communicating directly with the bore 14 or in one of the plungers 12.
Patent GB-142849-A (GB)
Title: Improvements in or relating to kinematographic projection apparatus
IPC: G03B41/10
Filed: 1920-05-05
Abstract: 142,849. Messter, O. E. March 20, 1918, [Convention date]. Kinematograph apparatus.-A continuous-feed kinematograph projector for a single-width film has two or more movable optical compensating devices between the objective and the projection screen, each device transmitting an image in turn and then swinging back to its initial position. Fig. 1 shows a projector having a gate b, film d, objective g, and rocking mirror i, j for optical compensation. A mirror h silvered in strips partly diverts the light beam to the mirror i and partly transmits it to the mirror j which transmits it to a fixed mirror k and the screen. A disk m makes one revolution during the passageof a picture, and has a spiral slot o which properly masks the picture during its projection. A shutter n makes one revolution during the passage of two pictures and has two semicircular slots permitting the mirrors i, j to project alternately. In a modification, the mirror h and shutter n are replaced by a semicircular mirror rotating about an axis perpendicular to its plane and alternately reflecting the beam to the mirror i and allowing it to pass to the mirror j. The mirrors i, j may be rocked by means of arms i<1>, j<1>, Fig. 6, which engage cams i<2>, j<2> on the shaft of the feed sprocket e, the circumference of the sprocket being two, picture lengths.
Patent GB-238511-A (GB)
Title: Improvements relating to speedometers
IPC: G01P3/34
Filed: 1925-05-14
Abstract: 238,511. Sch³rmann, W. Aug. 16, 1924, [Convention date]. Fluid-speed indicators.-In a speed indicator of the fluid-drag type in which the spindle 4 carrying the pointer 5 has a flyer 3 surrounded by a drum 2 on the driven shaft 1, the drum is provided with ribs 7, 8 which are machined to give the desired range of readings with the use of a standard restraining spring 6. Different drums or flyers are used for different indicating ranges.
Patent GB-232796-A (GB)
Title: Improvements in machines for sizing or planking the bodies of felt hats
IPC: D04H17/00
Filed: 1924-05-23
Abstract: 232,796. Turner. A., and Turner, W. E. May 23, 1924. Bodies, felting and planking.-In a planking machine of the "barrel-twisting" type, that is, wherein a number of planking rollers are arranged in a barrel-like container with their axes substantially parallel to each other but inclined to the axis of the barrel, the ends of the rollers are mounted in self-aligning spherical bearings and means are provided for clamping the bearings in the position which they take. As shown, the machine comprises a cylindrical vessel a having at one end a plate e secured by bolts f engaging slots allowing slight rotary movement of the plate on loosening of the bolts. The plate has an inlet opening k for the hat bodies to be treated, and four openings shaped to engage spherical bearings i<1>, Fig. 2, in which the ends of the rollers i rotate. After adjustment of the cover e the spherical outer part i<1> of each bearing may be clamped by a plate j bolted to the cover e. The rollers are arranged in twisted relation, that is, the bearings of one side roller are at the top of one end plate and at the bottom of the other, respectively. The rollers are driven by sprocket wheels and an endless chain. At the outlet end of the apparatus the lower bearings may be constructed as universal points m, o. A pump driven from the power shaft co-operates with inlet and outlet pipes connected to upper and lower parts of the cylinder a to circulate liquid.
Patent GB-182984-A (GB)
Title: Improvements relating to sound producing horns
IPC: G10K9/22
Filed: 1921-05-03
Abstract: 182,984. Lucas, H., and Edwards, W. H. May 3, 1921. Sound magnifying and directing appliances.-A convoluted sound-producing horn comprises two similar parts a, b pressed from shed-metal and formed by soldering or brazing &c. The intersecting portion of the convolution is formed by a tube d laid between the parts a, b, which are provided with recesses e to receive the enlarged end of the tube d and so prevent endwise movement. For mounting the horn on a vehicle, projections h formed on a combined flange g and sleeve f pass through perforations in the horn shell and engage similar perforations in the plate j. A second plate l is provided, the two being arranged to grip between them the portion of the vehicle on which the horn is mounted.
Patent GB-725609-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P5/68
Filed: 1953-05-07
Abstract: 725,609. Exciting electric motors. BROWN, W. H. May 7, 1953, No. 12743/53. Class 35. [Also in Group XXXVII] Parallel-connected motors 10, 11, 12 driving separate traction wheels or like loads, each have a main shunt field winding 19, an accumulative series field winding 16, and a differential series field winding 18. Each winding 16 is connected between one side of its armature and a common point 17, the windings 18 being connected in parallel between this point and one side of the supply. The arrangement is such that the impedances of the several parallel branch circuits are the same. The speeds of the motors are set in common by a rheostat 23 and individually by rheostats 22, and any variation in the relative speeds of the motors is corrected by changes in the value of the line currents and by the setting up of cross-currents between the motors when the relative loading changes; an increase in the armature current of one motor being shared by equal increases in the currents passing through the differential field windings 18. The motors may be of the series traction type, Fig. 2 (not shown), having opposing field windings of unequal number of turns. The system may be used for preventing excessive wheel-slip or sliding in vehicles. Reference is also made to the control of several motors driving a multiple block wire-driving machine, Fig. 3 (not shown). The circuit arrangement may comprise a number of parallel branches each consisting of a pair of motors connected in series, Fig. 8 (not shown).
Patent GB-554531-A (GB)
Title: Improvements relating to the jointing of pipes to tanks and the like
IPC: B64D37/00
Filed: 1941-10-02
Abstract: 554,531. Pipe joints ; valves. PHILLIPS & POWIS AIRCRAFT, Ltd., and SMITH, S. O. Oct. 2, 1941, No. 12745. [Class 99 (i)] [Also in Group XXIX] An outlet sump 1 of a fuel container has an outlet 12 normally closed by a disc valve 11 loaded by a spring 15 and mounted by means of a slidable sleeve 7 in a bearing boss 6. The valve is mounted with play in the sleeve by the pin and slot connection 9, 10. A sleeve 14 slidably mounted in the outlet is actuated by the nipple 13 of the pipe to open the valve when the coupling nut 5 is screwed up.
Patent GB-410196-A (GB)
Title: Improvements in or relating to pipe joints for metal pipes having a protective lining
IPC: F16L13/02
Filed: 1932-11-07
Abstract: 410,196. Pipe joints. MANNESMANN ROHREN-WERKE, 1B, Berger Ufer, D³sseldorf, Germany. Nov. 7, 1932, No. 12781/34. Convention date, Aug. 27, 1932. Divided on 410,120. [Class 99 (i).] In a welded joint for lined pipes the lining is protected from the heat of the welding operation by heat insulating material. In a butt joint the two parts of a sleeve c are secured to the pipes a and are welded together at f, the weld and the joint of the linings b being separated by a space d filled with insulating material. A packing ring g may be inserted between the ends of the pipe and linings, or the linings may abut and be heated and smoothed over to form a joint. Fig. 4 shows a lap joint welded at i, a space o for insulating material being formed by a sleeve n having a lining q which is joined to the pipe linings r by packing rings p.
Patent GB-101474-A (GB)
Title: Improvements in Electrical Measuring Instruments.
IPC: G01R11/36
Filed: 1916-09-11
Abstract: 101,474. British Westinghouse Electric &. Manufacturing Co., (Assignees of Bradshaw, W. M., and Boddie, C. A.). Sept. 10, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Induction motor meters. - A magnet 3, Figs. 1 and 3, shown inverted in Fig. 3, has poles 12, 13 separated by a single air-gap at right-angles to the disk armature 15, and is provided with means such as a pressure winding 19, producing opposite fluxes, and with means, such as a current winding 20, producing like fluxes in the poles. The retarding effect of the current winding at high loads is thus reduced. Enlargements 12a of the poles 12, 13 distribute the flux in the armature. On the opposite side of the armature to the poles 12, 13 is a magnetizable piece 4 separated by insulation 30 from a magnetic frame 2, to which it and the magnet 3 are secured, so that the path of the current-winding flux is of considerable reluctance. Between the armature and the piece 4 is a conductive plate 22 shaped as shown in Fig. 5, and adjustably secured by screws through slotted - ears 24, 25. One ear 25 is also provided with an internal rack, gearing with a pinion 28, Fig. 1. which can be turned by a screwdriver. The light-load starting-torque may thus be adjusted. A figure-of-eight closed winding 21, surrounding the separate poles and passing through the airgap, corrects for changes in power factor. Brake magnets 5, 6 are secured to the magnetic frame 2 by clamps 29. The frame 2 also supports the counting-gear.
Patent GB-1503664-A (GB)
Title: Microwave antenna
IPC: H01Q21/06
Filed: 1975-05-09
Abstract: 1503664 Aerials DECCA Ltd 9 May 1975 [22 March 1974] 12870/74 Heading H4A An antenna comprises a conductive plate having a row of slots (the greater dimension of the slots being perpendicular to the row direction) and two elongate conductors spaced from the plate and forming therewith parts of two transmission lines coupling microwave power with the slots, each line producing an associated radiation pattern. In the antenna shown, used in airborne Doppler navigation equipment for example, each row of slots 10 formed in copper cladding (4, Fig. 2, not shown) on one side of a flat slab of dielectric material is associated with a pair of conductive feeder tracks 6, 7 formed from copper cladding on the other side. The tracks are overlaid by another dielectric slab (12) having a thin copper cladding (13), the arrangement thus forming triplate transmission lines. The feeder tracks 6, 7 are joined at opposite ends to respective connector tracks 9, 8 by transition sections 11 of successively narrower quarter-wave lengths, and to resistive terminations 12 of a triangular plating of chromium. The centre line of each feeder track 6, 7 is off-set from the centre line of the associated slots, the off-set being greater at the ends than at the centre. Alternatively, the tracks could be straight and the slots off-set from the row centre lines. In a modification (Fig. 3, not shown) one feeder track (6a) associated with a row is sinuous and both tracks are joined to connector track at the same end to give the same radiation pattern as the embodiment shown. The layers of the antenna may be secured by conductive rivets positioned to inhibit unwanted modes.
Patent GB-289821-A (GB)
Title: Improvements in or relating to elastic fluid turbines
IPC: F01D5/30
Filed: 1928-05-02
Abstract: 289,821. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). May 2. 1927, [Convention date]. Blades and vanes; fluid, disposing of.- Passages d are formed through the blade roots or blade root spacers c of both the fixed and running blades for conducting away fluid which passes outside the blades. The object is to prevent this leakage fluid from returning into the main system and causing whirls. The passages in the roots or spacers of the rotating blades b may be so shaped that the leakage fluid imparts energy in passing. The dimensions of the passages may be such that the pressure at the outlet of each passage is equal to the pressure in the corresponding blade-gap. The arrangement facilitates the collection of condensation water.
Patent GB-1071323-A (GB)
Title: Fluorination of aromatic compounds
Inventor: FIELDING HAROLD CROSBIE
IPC: C07C17/20
Filed: 1965-03-26
Abstract: Hexafluorobenzene and fluorochlorobenzenes containing 5 or 4 fluorine atoms in the molecule are prepared by heating under reflux a mixture of fluorochlorobenzenes comprising trifluorotrichloro benzene and tetrafluorodichlorobenzene, or a mixture comprising trifluorotrichlorobenzene, tetrafluorodichlorobenzene and pentafluorochlorobenzene, with dry potassium fluoride in dry tetramethylene sulphone at 220-230 DEG  C., the hexafluorobenzene and some of the pentafluorochlorobenzene being distilled out as they are formed and condensed, and fresh quantities of the starting mixture being added intermittently or continuously so that the hexafluorobenzene with some of the pentafluorochlorobenzene distil off without the temperature of the reaction mixture rising above 230 DEG  C. or falling below 215 DEG  C. The other fluorobenzenes are subsequently distilled out, condensed and fractionally distilled.
Patent GB-310802-A (GB)
Title: Process and apparatus for treating foods
IPC: A23L3/28
Filed: 1929-04-26
Abstract: 310,802. Solar Research Corporation, (Assignees of Chesney, J. W. D.). April 30, 1928, [Convention date]. Grant of Patent opposed. L i q u i d lenses; reflectors. - Apparatus is provided for separating the heating rays from sunlight and concentrating the remaining rays, including the ultra-violet rays, for use in treating foodstuffs or constituents thereof which are antirachitically activated by the concentrated ultra-violet rays. In one form, Figs. 1 and 2, concentration is effected by a reflector 10 made of or coated with " Monel metal," magnalium, or other material reflecting ultra-violet rays. The reflector 10, which may be curved or formed of a number of plane reflecting elements, has side walls 11, 12 from which .extend sleeves 13, 14 carried in bear-- ings 15, 16 to support the reflector 10 in the desired position. A thin sheet -of water is distributed over the reflecting surface from perforated or slotted pipes 32 to absorb the heating rays, a draw off pipe 33 being provided. The food receptacle 22 consists of a framework 23 carrying side walls formed by sheets 24 of glass, fused quartz, pyroxylin, rayon, or other material transparent to ultra-violet rays. The reflector 10 can be rotatably adjusted by a handoperated worm 18 engaging a worm wheel 17 secured to sleeve 13. In another form, Figs. 5, 6, a hollow lens 34 is formed by two sheets 34a of material transparent to ultra-violet rays mounted between end plates 35, 36 having tubular trunnions 37, 38 which support the lens 34 rotatably in arms 39, 40 mounted at their other ends in bearings 15, 16. The edges of the sheets 34 are held together by metal strips 45 which are cemented so as to be liquid-tight. The lens is fllled with water or other liquid which is transparent to ultra-violet light rays, and will absorb the heating rays, a continuous circulation of the liquid being obtained through flexible pipes 46, 47 connected to the hollow trunnions 37, 38. The food receptacle 22 is mounted in the bearings 15, 16 substantially at the focus of the lens 34. The lens may be rotated to any desired position around the receptacle 22 by a worm 43 engaging a worm wheel 42a secured to the arm 39, and may then be focussed by means of the trunnions 37, 38.