baber/WOPTO huggingface dataset:
Patent GB-1241135-A (GB)
Title: Wide angle zoom objective
IPC: G02B15/14
Filed: 1969-05-29
Abstract: 1,241,135. Zoom objectives. KONISHIROKU PHOTO INDUSTRY CO. Ltd. May 29, 1969 [June 3, 1968], No.27372/69. Heading G2J. A wide angle zoom objective comprises four lens components C 1 -C 4 , C 1  and C 3  being positive, C 2  negative, these lenses having focal lengths f 1  f 2  f 3  respectively, and C 4  being a fixed relay system, C 2  being movable to vary the focal length and C 3  non-linearly movable to keep the image plane stationary, the following conditions being fulfilled: - where f 5  is the focal length at the maximum field angle; C 1  and C 3  each have more than one positive lens group, at least one of each group having a cemented negatively refractive surface r 2  and r 16 , and C 2  has at least one negative lens group having at least one cemented positively refractive surface r 7  and a positive group, focal length f 2   p , the front surface, r 11 , of which is a distance d 10  to the rear of the negative groups, the following inequalities being fulfilled: - the cemented surfaces in C 1  and C 2  being convex and concave to the front respectively, and the surfaces in C 1  C 2  and C 3  having refractive powers # 1 , # 2  2 and # 3  respectively fulfilling the following conditions: - Optical data for one example is given.
Patent GB-503540-A (GB)
Title: Improvements in and relating to electric flash lamps
IPC: F21K5/08
Filed: 1937-10-08
Abstract: 503,540. Electric flash-lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 8, 1937, No. 27399. Convention date, Oct. 8, 1936. [Class 9 (ii)] A flash-lamp comprises a sealed envelope containing a metallic wire structure wholly or in part coated with a combustible mixture of a metal with an oxygen yielding substance, a separate filament connected to said structure and serving when heated by an electric current to ignite the combustible .material with or without resulting ignition of said structure, the combustion yielding actinic light. In Fig. 1, a transparent bulb 10 contains a loose filling of metal wire 17 and a filament 11 I coated with a fulminating substance. The wire 17 is of aluminium or an aluminium alloy containing 2-5 per cent magnesium and 0-25 per cent chromium, and 4 mil or less in diameter, preferably 1-8 mil. This wire is coated with a mixture of 3 grms. barium oxide, 0-4 grms. aluminium powder, and 1À6 cc. of 3-5 per cent nitrocellulose solution thinned to the desired consistency by the addition of amyl acetate. An alternative coating mixture contains 2 grms. zirconium powder, 3 grms. aluminium powder, 50 grms. barium oxide, and 4 per cent of a binder such as nitrocellulose or a solution of cellulose acetate in amyl acetate. On ignition, the coating and the wire both burn and give off actinic light. In a modification, the wire is mounted zigzag fashion in drum formation as in electric incandescent lamps. In another modification, Fig. 4, a wire mesh screen 21, preferably of aluminium, is mounted in the bulb (not shown) and has a bent upper end 22 through which passes a short rod or tube 23. The lead-in wires 12 are bent as shown and the filament 11 located against the screen, at least a portion of which is coated with a mixture of 1À5 grms. aluminium powder, 3 grms. zirconium, 5 grms. lead peroxide, and 10 cc. of 3À5 per cent nitrocellulose solution in amyl acetate. The filament is coated with the same mixture. The screen may be made of very fine wire so as to participate in the combustion. Specification 434,2,53 is referred to.
Patent GB-1312349-A (GB)
Title: Reinforced concrete ceilings
IPC: E04B5/38
Filed: 1970-06-05
Abstract: 1312349 Moulding reinforced concrete ceiling units H WOLF 5 June 1970 [6 June 1969] 27408/70 Heading B5A [Also in Division E1] A reinforced self-supporting concrete shuttering slab 1 is preformed by moulding a concrete grid of longitudinal and cross members 2a, 2b around a welded metal lattice beam reinforcement 4, the lower longitudinal point of which is embedded in the members and the upper part extending in or above the space between concrete, plastics or cardboard inverted channel forms 3 or 3<SP>1</SP> closed at their ends and either joined at their free lower edges with the longitudinal and cross members to cover the grid apertures or cast in concrete integrally with these members. The reinforcement 4 may extend above the upper level of the forms 3 or 3<SP>1</SP>. A lower passive concrete or plaster panel 15 reinforced with wire mesh 14 may be keyed to the concrete grid by means of projecting wire loops 16a and the forms 3<SP>1</SP> keyed into the panel 15 and the grid by means of alternately upturned and downturned projections of a wire mesh/reinforcement of the forms 3<SP>1</SP> at their free edges. Projecting loops 9<SP>1</SP>b from the top of the forms 3<SP>1</SP> may key with additional concrete reinforcements 17 linking the adjacent forms. Temporary male moulds 11 in conjunction with a female die corresponding to the upper surface of the slab 1 may be used to form the elements 3 integrally on a vibrated moulding table 10. Alternatively concrete may be gunned or troweled over a wire mesh corresponding to the forms 3<SP>1</SP>. Nailing strips 7 may be incorporated in the grid members and the edge members of the grid may be wider than those in the grid body.
Patent GB-407113-A (GB)
Title: Improvements in electric energising apparatus
IPC: H02K7/18
Filed: 1932-10-03
Abstract: 407,113. Supply systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl- Ufer, Berlin.) Oct. 3, 1932, No. 27445. Convention date, Oct. 2, 1931. [Class 38 (iv).] Electrical apparatus having sections subject to different potentials is supplied from a unit comprising a plurality of sources of current in superposed relationship, the sections of the apparatus being connected to the individual sources of current. In the arrangement shown, three transformers 1, 2, 3, connected in cascade, are supplied from generators 4, 5, 6 mounted in superposed relationship and driven by a single motor 7 through insulated shaft connections 8, 9, the insulation being adapted to withstand a voltage corresponding to a potential stage. The capacity loading of the generators is compensated by choke coils 15-17. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which transformers 1<a>-3<a>, Fig. 2 (Cancelled), are fed by generators 4<a>-6<a> through autotransformer connections. The energizing windings 28, 29 of transformers 2<a>, 3<a> are placed adjacent to each other, so that the necessity for insulation between the generators 5<a>, 6<a> is avoided. The insulation 8<a> between the generators 4<a>, 5<a> is suited to the twofold transformer potential. This subject-matter does not appear in the Specification as accepted.
Patent GB-251933-A (GB)
Title: An improved sound box for talking machines and a process for manufacturing it
IPC: H04R7/00
Filed: 1925-11-02
Abstract: 251,933. W³st, A. May 8, 1925, [Convention date]. Sound-box casings.-A gramophone sound-box casing is built up by uniting by means of an adhesive a number of layers of non-metallic, non- fibrous, artificial material such as cellulose esters, or the substances sold under the Registered Trade Marks " Cellon," " Bakelite," " Galalith," and "Trolit." According to one process, layers of materials of the kind specified are stuck together and machined by turning and milling operations to form a body such as is shown in Fig. 4. A further piece is then stuck on to the rear layer, is turned to circular shape, and is then bored to receive a connecting tube 3, Fig. 9. The diaphragm 4 may be held between rubber gaskets 5 in a cavity 6 in the casing, or it may be secured by adhesive in a recess in the front edge of the part 9 of the casing, Fig. 10, after which a ring 8 is attached. Fig. 11 shows a further modification in which the casing consists of a composite back-plate 11 of non-fibrous, non-metallic material, a ring 14 of wood or artificial material, and a surrounding cup-shaped member 12 of cellulose ester or the like, the parts 11, 12, 14 all being stuck together.
Patent GB-198282-A (GB)
Title: Improvements in and relating to confections or sweetmeats
IPC: A23G9/32
Filed: 1922-10-11
Abstract: 198,282. Armstrong, J. D. Oct. 11, 1922. Confectionery or sweet. meats; ice-creams and like preparations.-A confection comprises a hollow, edible body 1, a plastic filling 5 of congealed or frozen material, such as ice-cream, and a tube 7 through which the filling may be sucked. The body may be of candy and is initially left open for the insertion of the filling and is sealed by a thin end well 6 formed by dipping in candy. The tube 7 may be of hard candy, or other suitable material, and serves as a handle. A wrapper is provided. A vent may be made by puncturing the end wall 8 to facilitate the extraction of the filling. The confection may be made in halves which are independently filled with the filling and are then joined in any suitable manner. In a modification, the walls of the body arc hollow and filled with cake or pastry and then sealed by dipping. In another modification, the walls are made of soft candy and are squeezed to eject the filling.
Patent GB-1445282-A (GB)
Title: Liquid-stirrer
IPC: B01F27/96
Filed: 1974-06-21
Abstract: 1445282 Mixing apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 June 1974 [25 June 1973] 27613/74 Heading B1C A stirrer for liquids has coaxial solid and hollow bodies of revolution such as hemispheres 1, 2, having apical openings 4, 9 and joined by radial vanes 10 having deflected upper portions 11; the inner bodies has a filling of e g. polymethylmethacrylate in which there is a bore connecting the opening 4 with a plurality of inclined bores having openings 14 at the root of the shaft 6. In operation the stirrer is rotated with the deflected upper portions 11 of the vanes trailing, whereby liquid enters the opening 9 and is discharged as helical streams within a cone of 120 apex angle and generatrix F', vortexing being discouraged by discharge from the openings 14.
Patent GB-1123735-A (GB)
Title: Improvements to soil samplers, piles, caissons and like elongated objects
IPC: E02D1/02
Filed: 1966-06-21
Abstract: 1,123,735. Boring earth etc; piles and foundations. STICHTING WATERBOUWKUNDIG LABORATORIUM. 21 June, 1966 [23 June, 1965], No. 27641/66. Headings E1F and E1H. A member 2, e.g. pile, caisson or soil sampler, to be driven into the ground, comprises a conical end part incorporating an elastic membrane 4 behind which is a fluidfilled space 6 connected via channel 7 to a pressure source capable of producing periodical volume displacements of the fluid to facilitate movement of the member. These displacements may occur in timed relationship to the driving pulses of member 2. The conical end part may have more than one membrane, and one or more cylindrical membranes may be provided on the cylindrical part of member 2.
Patent GB-174901-A (GB)
Title: Improvements in four stroke cycle explosion engines
IPC: F02B53/00
Filed: 1921-10-18
Abstract: 174,901. Axien, J. H., and J³rgens, J. Jan. 29, 1921, [Convention date]. Four-stroke-cycle engines; driving-gear; cylinders, passages of.-In an engine having pistons reciprocating in annular chambers or with cylinders arranged tangentially to a circle around a central shaft, and in which each explosion acts simultaneously upon a pair of pistons, oppositely-disposed pistons are connected to oscillating arms mounted on a central shaft and constrained by a system of links. The engine shown in Figs. 5 and 6 has two sets of cylinders arranged in planes at right-angles to the shaft x, one set of cylinders only being shown in Fig. 5. Oppositely-disposed pistons are connected in pairs to oscillating arms f and the cylinders rotate with the shaft x, coaxial with which is a crank shaft having pins h, h<1> secured to rods g<2> connected to links g, g<1> mounted on the gudgeons e of the pistons. The rods are anchored to the cylinder casing by links o, o<1>. The distribution of the charges is controlled by cylinder ports (not shown) which register at intervals with inlet and exhaust ports in end plates parallel with the planes of the cylinders. Two exhaust passages are provided in each end plate, a cylinder port first communicating with a passage connected to a silencer and then with a second passage opening directly into the atmosphere. A modified construction of engine is described in which four pistons oscillate in an annular chamber, the combustion spaces being formed between oppositely-moving pistons as in the construction shown in Fig. 5. Adjacent gudgeons are connected by a pair of links to one of two crank arms eccentric to the main shaft, and the movements of the oscillating arms connecting together opposite pairs of pistons are constrained by links anchored to the cylinder casing. Either engine may be modified so that its cylinders remain stationary.
Patent GB-156374-A (GB)
Title: Improvements in water tube boiler superheaters
IPC: F22G7/14
Filed: 1919-11-10
Abstract: 156,374. Marks, E. C. R., (Locomotive Superheater Co.). Nov. 10, 1919. U-tube superheaters. - A unit of a superheater fitted between the spaced rows of tubes of a water-tube boiler consists of pairs of subheaders each of such a width as to extend across a space between adjacent rows of water-tubes, and of tubes connected to the sub-headers and having a diameter considerably less than the width of the space between the rows of water-tubes. Subheaders 19, 20 extend upwards from horizontal headers 16, 17 into the spaces between inclined rows of boiler tubes 5. U-tubes 21 connected to the sub-headers project into the spaces parallel to the water-tubes. In a water-tube boiler having upper and lower drums connected by vertical tubes, the superheater sub-headers extend horizontally between the boiler tubes near the top drum, and the U-tubes depend from the sub headers into the spaces between the tubes. The sub-headers are so connected to the main headers that they may be readily detached.
Patent GB-266257-A (GB)
Title: Improvements in ventilators
IPC: B63J2/10
Filed: 1926-11-05
Abstract: 266,257. Nelson, F. N. Nov. 5, 1926. Ventilating-shaft tops.-A ventilator, more particularly for ships, comprises an air tube 2, Fig. 2, having an out-turned peripheral flange 5 at its upper end, a hood 11 supported above the upper end of the tube, a ring 6 fixed about the tube in spaced relation to the said flange 5, guiderods 8 fixed between the ring 6 and flange 5, and a float 14 encircling the tube and slidable on the guide-rods. The float 14 which is adapted to be lifted so as to abut against the flange 5 and hood 11, consists of a hollow annular ring and the rods 8 pass through openings formed in flanges 15 and ring 16 provided in the float. Gaskets 17, 19, on the hood and float respectively, make contact with a flange 14<1> on the float and flange 5 of the tube. When the ventilator is applied to a ship of small type, a weight in the form of a ring 20, slidable on the rods 8, is provided in order to close the float against the hood should the ship be capsized. A cowl casing consisting of the frusto-conical members 30, 31 surrounds the hood and upper portion of the tube, but such casing may be omitted and the valve is then operated by mechanical means only. The lower part of the casing is provided with a number of parts 32, normally closed by trap doors 33 mounted on hinges 34. The upper and lower edges of the doors overlap respectively the inner and outer faces of the casing so that the doors serve to discharge any large amount of water which may enter through the cowl 24. A drain pipe 38 is also provided in the casing. Mechanical means for lifting the float consists of lazy tongs 53 connected with the float by rods 50 and adapted to be operated by means of handles 58 on a shaft 54 as shown in Fig. 1. The shaft 54 may be operated from the bridge of a vessel by means of a motor and chain or cable. An alternative method of lifting the floats is by pivoted levers engaging the float and operable by chains passing over sprocket wheels or drums. The cowl 24 is adapted to be rotated by suitable gearing 25 - - 27. A pivoted cover plate 41 covers an opening in the tube 2, for the insertion of a fire hose.
Patent GB-819182-A (GB)
Title: Improvements relating to boomerang projecting devices
IPC: A63B65/08
Filed: 1956-09-12
Abstract: 819,182. Boomerang-projecting devices. PAUL, E. A. D. Sept. 4, 1957 [Sept. 12, 1956], No. 27919/56. Class 132(3) A boomerang-projecting device comprises a platform 1 secured on a block 2 carried at one end of a rod 3, the latter being provided with a handle 4. A plate 5 is spaced from the platform by two parts 6, 7. which locate a boomerang inserted between the plate and the platform. The edge 5<SP>1</SP> of the plate preferably extends beyond the corresponding edge 1<SP>1</SP> of the platform to form a lip facilitating insertion of the boomerang, and the plate may be made of a transparent material so that it can be seen when the boomerang is correctly positioned. If the plate is opaque, a viewing hole may be provided in it to enable the location of the tip of an inserted boomerang in relation to the part 7 to be seen. In using the projector, a bobbin 9 slidable on the rod 3 is retracted to compress a spring 10, and on release, the bobbin strikes the heel of the boomerang which leaves the projector with a counter-clockwise spin resulting from a nose portion 7' of the part 7 impeding direct projection of the tip of one leg 8<SP>1</SP> of the boomerang. The underside of the boomerang may be hollowed out as shown in Figs. 4-6 which correspond to sections taken at IV, V and VI respectively, of Fig. 3. The platform 1, the plate 5 and the boomerang may be of plastic; alternatively the boomerang may be of aluminium. A net or other receptacle for receiving a projected boomerang on its return flight may be attached to the device clear of the path of the projection.
Patent GB-279581-A (GB)
Abstract: 279,581. James, R. W., (Holmes Navigating Apparatus Co., Inc.). Aug. 23, 1926. Selective distant control systems.- Relates to a distant control system wherein the transmitter comprises a variable electrolytic resistance. As shown the transmitter is in the form of a compass having magnetically responsive elements 31, 32 mounted in a support 26 which is pivoted in a hermetically sealed bowl / containing an electrolyte 25. T h e support 26 carries conductors 6, 15, the extremities of which co-operate with fixed contacts 4, 16, 7, 14 mounted on the bowl. The compass controls the position of the armature 27 of a relay, the individual coils 10, 21 of which are energized from an alternating current supply 1 in parallel circuits through the electrolyte. The arrangement is such that normally the coils are equally energized to maintain the armature 27 in a neutral position but upon rotation of the support 26, the resistance of one of the circuits is increased to unbalance the forces acting on the armature 27 and thereby cause its movement. This operation is effected by reason of the relative disposition of the stationary and movable conductors and the elongated form of the stationary conductors, which maintain the resistance of one circuit constant while the resistance of the other circuit is increased. The bowl 5 is provided with an annular expansion chamber 36, which allows for expansion of the electrolyte. The chamber 36 is connected to the bowl 5 by a constricted annular passage which prevents the formation of wave motions in the main body of the liquid. The conductors may be formed of platinum and the electrolyte may be acidulated water rendered non-freezing by methyl alcohol.
Patent GB-1067227-A (GB)
Title: Improvements in or relating to sliding clasp fasteners of plastics
Inventor: EDLER ERNST
IPC: A44B19/60
Filed: 1964-07-07
Abstract: 1,067,227. Injection moulding sliding clasp fasteners. KLEINMETALLWARENWERK HEILIGENSTADT VEB. July 7, 1964, No. 27981/64. Heading B5A. A separator (17) (Figs. 4, 5, not shown) for a sliding clasp fastener comprises male and female parts 35, 40 made by injection moulding, the cavity in the female part 40 which receives the male part 35 being formed by the rim 20 of a rotatable disc 19. The rim 20 of the disc 19 is interrupted, at 22, so that it can be removed from the moulded part 40 by turning a handle 24. The journal 27 of the disc 19 has a steep screw thread whereby the part 40 is lifted out of the bottom mould part 4 when the disc 19 is rotated. In operation, the fastener stringers 33 are inserted between guide strips 28 in a crossedover position. A piston (13) (Fig. 1, not shown) compresses the moulding material in a melting cylinder (6) and moves the top mould part (5) downwardly against the action of springs 10, the nozzle (7) being closed by a lever (11). The mould is held closed by pivoted levers (31).
Patent GB-1358537-A (GB)
Title: Mechanical break-up spray nozzles
IPC: B05B1/04
Filed: 1971-08-20
Abstract: 1358537 Break-up spray nozzle R T MACGUIRE-COOPER 20 Aug 1971 [10 June 1970 7 July 1970 17 Aug 1970] 28028/70 32816/70 and 39601/70 Heading B2F A stream of liquid is mechanically broken up into a spray by a nozzle having a cavity with an extension in the form of a passage of small cross-section having a blind end and an orifice between the ends of the passage opening to the exterior of the nozzle. In one embodiment (Fig. 2) injection moulded nozzle body 1 is formed with an inlet cavity 4 in which valve stem 2 having feed passage 3 is inserted. A fine bore groove 5 is formed in the wall of cavity 4 and sealed along most of its edges by engagement between nozzle body 1 and stem 2. The external face of the nozzle has a recess 8 into which opens orifice 9 in the form of a wedge-shaped slot, the upper face 11 of which determines the direction of the fan-shaped spray produced. In a further embodiment (Fig. 6, not shown) grooves are formed in the valve stem wall rather than the cavity wall so that by relative rotation of the nozzle body and the valve stem different spray characteristics may be obtained.
Patent GB-677266-A (GB)
Title: Electric furnaces for the heat treatment of metal or other articles in batches
IPC: C21D9/56
Filed: 1949-11-04
Abstract: 677,266. Heat treatment furnaces. STORDY ENGINEERING, Ltd., and STORDY, J. J. Nov. 13, 1950 (Nov. 4, 1949], No. 28241/49. Class 51 (ii). In a forced convection furnace for the lowtemperature heat treatment of aluminium and other metal articles, a heat insulated chamber 1 containing removable electrical elements 2 is centrally disposed behind the rear wall 3 of the work chamber 4 and is flanked by and connected to two centrifugal fans 5 having their pressure outlets 8 connected to longitudinallydisposed supply ducts 9 extending along the lower side walls of the work chamber. The supply ducts 9 are formed along their inner walls with damper-controlled outlet openings 10 and are interconnected by transverse ducts 12 controlled by dampers 13, said ducts extending through longitudinal parallel walls 14 and opening into the work chamber 4 in the spaces between said walls 14. A return duct 17 provided with damper-controlled exhaust openings 18 in its underside and vertical side walls is suspended from the chamber roof and connected at its rear end to the heater chamber 1. The walls 14 are capped by metal bearer plates 15 on which work is deposited from verticallyadjustable work-supporting members on a carriage running on rails 16 disposed between the walls.