baber/WOPTO huggingface dataset:
Patent GB-625372-A (GB)
Title: Improvements in anti-aircraft projectiles and fuzes for said projectiles
IPC: F42C13/00
Filed: 1947-07-24
Abstract: 625,372. Projectile fuzes. ETABLISSEMENTS E. BRANDT. July 24, 1947, No. 19934. Convention date, July 29, 1946. [Class 9 (i)] An anti-aircraft projectile comprises a hollowmetal body containing an explosive charge, a fuze projecting from the body and comprising a dielectric mass which constitutes the projectile's nose, an electric conducting element of practically no capacity passing through the mass, a primer located at or adjacent the rear end of the conducting element, means for igniting said primer by the action of the flow of an electric current through the element and projectile, as for instance by electrostatical discharge from an aerial target, and a detonator located near the primer. In the construction shown the fuze comprises a body 1, a part 2 of insulating material, a primer 5 which is insensitive to shocks and which is housed in a cup 6, and a holder 9 for the detonating charge 11. Within the part 2 is the conducting element 3 of thread form and made of electrolytic red copper, the rear end of the element being separated from the primer by a distance e, the thickness of the base of the cup 6. The projectile houses an explosive charge 15 and a tracer charge 17. The projectile itself and the perturbation 19 in its wake, which wake becomes ionized and charged with metal particles from the tracer composition, together constitute an escape for the electrostatic charge on the surface 22 of the target when the projectile is within a certain distance of the target. Most of the discharge takes place through the element 3 and the spark across the gap e ignites the primer, whose flash is transmitted through a hole 13 in a cap 12 to the detonator. To prevent the fuze from functioning, during transport, when near electric motors, high tension cables and the like, a thin metal cap normally covers the body 1, this cap being torn off during flight by the action of centrifugal force. The Specification as open to inspection under Sect. 91 describes also an electrode of zig-zag form. This subject-matter does not appear in the Specification as accepted.
Patent GB-221787-A (GB)
Title: An improved method of and apparatus for removing rain drops and moisture from wind screens and the like
IPC: B60S1/54
Filed: 1924-08-23
Abstract: 221,787. Holford, E. T. Sept. 13, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Windows, preventing condensation on.-Rain drops and moisture are removed from windows, wind-screens &c., particularly of trains, motor cars and the like, by means of a jet of air or gases delivered thereon under pressure through jets or nozzles a by a compressor &c. o worked by the engine. The air is delivered to an auxiliary chamber through a restricted orifice which causes a delav in filling and thence to the jet through a pipe i having a foot valve k or a relief valve automatically operated at a certain pressure. The tapered jet a comprises a number of holes c, connecting with the interior of the tube, covered by a plate f adjustably spaced from the nozzle by packing. The jet may be carried by a cranked bracket j or by clips n. Hot gases may be delivered from the engine through the jet by means of a pipe i<2> and valves q in the cylinders or valve caps of the engine. A filter with a removable plug t<1> and a stop valve r are provided, or the pipe i<2> may be connected to the cylinders by means of compression taps, the levers of which are operated by a connecting-rod under the control of the driver.
Patent GB-148118-A (GB)
Title: Improvements in the manufacture of casings for foundry moulds
IPC: B21H1/06
Filed: 1920-07-09
Abstract: 148,118. Schr÷der, G. Aug. 5, 1916, [Convention date]. Drawings to Specification. Flasks.-A circular flask of H cross-section is made from a block of Siemens-Martin steel by flattening, forming a hole therein; forging on the horn of an anvil, and rolling as in the production of wheel tyres.
Patent GB-1500219-A (GB)
Title: Wiper blade for wiper installations in vehicles
IPC: B60S1/38
Filed: 1975-05-13
Abstract: 1500219 Windscreen wipers SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 13 May 1975 [26 July 1974] 20047/75 Heading A4F A wiper blade for a vehicle wiper installation comprises a slightly bent or curved resilient integral plastics yoke 2 having on one longitudinal surface hooked lugs 3, 4 for holding a wiper rubber 22, and a resilient pressure distributing strip 9 is disposed between the rear portion of the wiper rubber 22 and the yoke 2. The strip 9 and the wiper rubber 22 are retained against longitudinal movement in the yoke 2 by the turned down ends 7 of the latter, in each of which is an aperture 8 through which the strip 9 can be withdrawn after appropriate deformation of the assembly. The strip 9 may engage in grooves 15, Fig. 4a (not shown) in the lugs 3, 4 or against projections 33, Fig. 4c (not shown) thereon, or may be of the same width as that of the space between the lugs receiving the head 21 of the wiper rubber 22.
Patent GB-794672-A (GB)
Title: Improvements in or relating to furnace doors
Inventor: DENNISON WILLIAM EDMUND
IPC: F23M7/00
Filed: 1955-07-11
Abstract: 794,672. Doors. IDEAL BOILERS & RADIATORS, Ltd. March 23,1956 [July 11, 1955], No. 20060/55. Class 126 [Also in Group XII] A furnace door applicable to, e.g. a domestic boiler, comprises an outer shell 4, Figs. 1, 4, and an inner plate 10 connected by studs screwed into bosses 8 on the shell, the plate being urged away from the shell and into sealing contact with the edge 3 of the furnace opening by springs 11. The door is mounted on a hinge pin 5 supported in bosses on the furnace by brackets 6 secured to the shell, and held in the closed position by a lever 15 engaging a lug 16 on the shell. A peripheral space 17 permits flow of cooling air between the shell and the plate. An asbestos gasket may be applied to the rim 14 of the plate.
Patent GB-129550-A (GB)
Title: Improvements in Oil Cans.
Inventor: BRYERS PETER
IPC: F16N3/04
Filed: 1918-12-05
Abstract: 129,550. Bryers, P. Dec. 5, 1918. Nozzles with grooved orifices. - To prevent the spout of an oil can from becoming clogged with dirt and fibres, it is fitted with a nozzle consisting of a tapered member B formed with one or more grooves b<2>. The member B fits into the spout A and is secured by a pin a<2> engaging an annular groove. A ball d at the lower end of the spout prevents oil from running back into the can, retaining it in the spout ready for use. A strainer E is fixed to a tube D, into which the spout is screwed.
Patent GB-747972-A (GB)
Title: Improvements in automatic adjusting devices for brakes
IPC: F16D65/54
Filed: 1953-07-21
Abstract: 747,972. Automatic adjusting devices for brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. June 11, 1954 [July 21, 1953], No. 20148/53. Class 103 (1). The invention concerns a modification to the invention described in Specification 738,034 which describes means for automatically adjusting brakes to compensate for wear of the friction members and also of means for moving the friction members a predetermined distance away from the rotatable braking member after each application of the brakes. In place of the solid pins secured at one end to backing plates, as described in the above Specification, elasticallydeformable pins 6 of cross-section illustrated in either Fig. 4 or Fig. 5 are secured at one end to backing plates 4 which each carry a pad of friction material 2 to engage the side surfaces of an annular disc. On each pin 6 is frictionally fitted a cylindrical sleeve 7 provided with an annular flange 8 which is normally seated on the shoulder 12 of the distance piece 11 and is capable of limited movement between the shoulder 12 and the annular member 10 seated on the step of the hole 9 which lies parallel to the cylinder of the fluid-pressure piston and cylinder mechanism. This limited movement represents the clearance of the friction pad 2 from the friction surface of the disc when the braking pressure is removed. Should friction pad wear take place, the braking pressure will cause the pins 6 to slip through the sleeves 7 until full frictional engagement is effected. On removal of the braking pressure, the springs 13 will retract the backing plates 4 and allow the pads 2 to effect the predetermined running clearance. Fig. 3 illustrates a further embodiment of the invention in which a sleeve 18 is located in frictional engagement with each of the elastically deformable pins 6 such that axial movement in one direction is limited by the step formed in the hole 9 and in the other direction by the end of a hollow plug 16 screwed into the end of each hole 9. Thus on application of the braking pressure, the piston of each mechanism moves towards the disc 1 against the tension of the return spring to effect frictional engagement between the pads 2 and the disc 1. If the sleeve 18 abuts the step of the hole 9 before full frictional engagement is effected (due to wear of the pad) then the braking pressure will cause the pins 6 to slip through the sleeves until full frictional engagement is effected. When the braking pressure is removed, the spring 15 will retract the assembly until the sleeves 18 abut the ends of the plugs 16 thereby effecting the predetermined running clearance. The device may be adapted with suitable modification to a drum brake. Specification 688,382 also is referred to.
Patent GB-736088-A (GB)
Title: Improvements in or relating to gas-blast electric circuit-breakers
Inventor: WILD ROBERT WILLIAM
IPC: H01H33/32
Filed: 1952-08-12
Abstract: 736,088. Gas-blast switches. REYROLLE & CO., Ltd., A. Nov. 12, 1953 [Aug. 12, 1952], No. 20255/52. Class 38 (5). A blast valve M for a gas blast circuitbreaker comprises two annular valve elements M<SP>2</SP>, M<SP>3</SP>, having seatings J<SP>2</SP>, K<SP>2</SP> provided in discs J, K interlocked by projections Jl, K<SP>1</SP> and bolted to a flange A<SP>1</SP> of a gas-filled enclosure A, the-valve being supported by a flexible diaphragm M<SP>1</SP> supported by discs J, K. The valve M controls exhaust vents L formed round discs J, K between projections J<SP>1</SP>, K<SP>1</SP>, and on separation of pneumatically-actuated contact E from fixed contact D the valve opens and an arc-extinguishing gas blast is produced through nozzle C. The valve has two concentric cylindrical flanges M<SP>4</SP>, M<SP>5</SP> forming cams which, for opening the valve, are engaged by rollers N<SP>1</SP>, N<SP>2</SP> carried by the rotor N<SP>3</SP> of a pneumatic motor appropriately timed in relation to the operation of contact E. The rotor N3 carries a vane N<SP>4</SP>, Fig. 2, rotatable through 300 degrees in an arcuate cylinder formed by a pair of discs O, O<SP>1</SP> and wall B3. Valves 03, 04 operate alternately to rotate the vane N4 clockwise and anti-clockwise, one valve acting as inlet valve and the other closing to provide a dashpot action. The valve may alternatively be situated on the high-pressure side of the nozzle to act as an inlet valve, or it may control the supply to a number of phases, or the two valve elements may control ports in opposite walls of the valve chamber (Figs. 3-5, not shown).
Patent GB-314997-A (GB)
Title: Brake for bolts and other similar assemblages
IPC: F16B39/10
Filed: 1929-07-02
Abstract: 314,997. Cuggia, E., and Duranton, M. July 6, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Locking nuts.-A washer 1 is provided with a sector or segment 3 partly filling the bolt hole 2 and the bolt 4 has a corresponding cut away portion 5 to engage said projection. When assembled a portion of the washer is bent up along one face of the nut. When the nut is cylindrical its external face is provided with slots into which the bent up portion enters.
Patent GB-185597-A (GB)
Title: Improvements in doffing apparatus for ring spinning and twisting machines
IPC: D01H15/013
Filed: 1921-07-28
Abstract: 185,597. Graf, F. July 28, 1921. Addition to 152,893. Doffing-arrangements.-The cop-holders 19 of the doffing-apparatus described in the parent Specification are provided with spring arms 52, which embrace the rim of the ring or are provided with brushes, so that as the cop-holder is advanced the traveller 51 is engaged by one or the other of them and is moved, together with the yarn, out of the way of the cop-holder.
Patent GB-257267-A (GB)
Title: Improvements in multifocal ophthalmic lenses
IPC: G02C7/06
Filed: 1926-08-17
Abstract: 257,267. American Optical Co., (Assignees of Hill, H. W., and Wheeler, R D.). Aug. 24, 1925, [Convention date]. Spectacle lenses.-Multifocal spectacle lenses having the distance and reading portions with a common optical axis and in which the line or division between the fields is free from a depression or raised shoulder are constructed by taking an ordinary one piece bifocal lens having separated optical axes and grinding thereon a second distance field at such an angle to the first distance field that it has the same optical axis. The various grinding operations are performed as follows :-A glass disc 21 sufficient for two lenses, moulded to the approximate shape of the lens and having on one side a distance portion 18 and a reading portion 20, is ground and polished on the bifocal side with a ring tool to produce the required distance portion 18, and the reading portion is then ground and polished to the radius 3. The disc is then divided into two blanks, each of which is made into a lens according to the invention by placing its bifocal side downwards on a table and centred. The table is then tilted to the angle which will make the distance portion coaxial with the reading portion, when the distance portion is reground. The lens is transferred to a'fresh lens holder, the centre of which is aligned with the centre of the table and the new distance portion 17 is ground and polished from the centre 6'. The finished side of the lens now comprises three surfaces, the new distance portion 17 co-axial with the reading portion 20, and an intermediate portion 18, which is bounded by a horizontal junction line 19 and a downwardly curved line where it joins the reading portion. The prescription side is subsequently ground from the centre 8 so that it is co-axial with the reading portion 20 and the new distance portion 17. If the prescription side is to be a toric surface the meridians are arranged to cross on the line 3, 1. Fig. 3, the common axis of the bifocal portions.
Patent GB-423035-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/04
Filed: 1933-07-18
Abstract: 423,035. Photographic cameras; exposure meters; developing-apparatus. BILLING, N. P., 6, Lower Regent Street, London. July 18, 1933, No. 20322. [Classes 98 (i) and 98 (ii)] The camera has a collapsable, lighttight body comprising two or more telescopic elements, which may be formed of mouldable material, or of metal, preferably die-cast, and which are held in extended position by means brought into operation by a relative rotation of the elements. As shown, the rear element 10 is preferably of square cross-section and is provided with a focusing-screen carrier 15 hinged at 16. The other elements 11, 12 are of circular crosssection, and each has at its rear end screwthread engagement 23 or 26 with the element behind it in order that the elements may be secured when extended. To permit focusing, the engagement at 23 is not directly with the element 10, but with a ring 19 which is prevented from rotation by keyway engagement 20, 21 with the element 10, and has an external screwthread engaging a thread on a ring 17 rotatable in the element 10. This ring serves also to permit assembly of the elements, having a peripheral groove engaged by grub-screws 18 on the element 10. The camera when collapsed is closed by a detachable cover board secured by spring catches 38 ; and when extended may be secured in any manner to a supporting plate 34. As in Specification 423,226, the front element 12 may be formed in several parts 28, 29, 30 carrying the lens, shutter, and stop or filter carriers. The Provisional Specification describes also (1) lens-shutter mechanism comprising a single, pivoted, apertured blade, or twin blades moving in the same direction; (2) stand attachments for panoramic or stereoscopic work, including a slide which may have a hinged, apertured leaf for view-finding ; (3) a carrier for a plate, or a film in an envelope, slidable in grooves in the camera back, or hinged thereto and carrying a pivoted focusing-screen and a mirror which may be set in inclined position for inspecting the image on the screen ; (4) a developing tank comprising a dark chamber, which may be the outermost member of the camera body, and which is closed by a holder for the exposed plate or film, and has in its opposite wall an aperture through which the various liquids canbeintroducedfromreceptacles which may be fitted to the aperture, as by screw-thread connection ; (5) an exposure meter of the density-wedge type with stops and shutter settings, which may be inserted between the lens elements and viewed on the focusing-screen ; and (6) the subject-matter of the Specification 423,226.
Patent GB-1099914-A (GB)
Title: Process for producing hydrogen
IPC: C01B3/40
Filed: 1965-05-13
Abstract: Normally liquid hydrocarbons (B.R. 30 DEG  to 400 DEG  C.) are steam-reformed in the presence of hydrogen over a Pt group metal catalyst at a temperature below 700 DEG  C. until at least 90% conversion is attained, the temperature of the reaction mixture being then raised to 1000 DEG  C., still in the presence of a Pt group metal catalyst. The pressure of the later stage is super atmospheric, e.g. 2 to 50 atmospheres.  The method enables feedstock in the naphtha boiling range (95 DEG  to 150 DEG  C.) to be reformed at steam ratios in the range 1 to 5, but with steam ratios below about 2 the first stage temperature should not exceed 650 DEG  C.  The second temperature stage may be in the same or in additional reactors, and hydrogen may be provided for the first stage by thermally or catalytically partially cracking the feedstock, fresh feed being optionally added to the cracked feed, or H2 containing effluent from the reactor may be recycled. The catalyst may include two or more Pt group metals, and is on a refractory, inorganic oxide support, e.g. alumina with or without silica, magnesium oxide or zirconia.
Patent GB-177749-A (GB)
Title: Improvements in gulley gratings and the like
IPC: E03F5/06
Filed: 1921-07-29
Abstract: 177,749. Leather, C. L. July 29, 1921. Hinges.-In a grating of the kind trunnioned in open sockets in the frame and provided with means for impeding its removal, the open ends of the sockets are closed by removable bolts. Fig. III shows a section through one of the trunnion sockets d, the arms a, b of the socket being perforated at a<1>, b<1> for the reception of a bolt j secured by a nut n. The perforation b<1> may be screw-threaded to secure the bolt, or taper bolts may be driven into perforations shaped to correspond.
Patent GB-187351-A (GB)
Title: An improved fuel
IPC: C10L7/02
Filed: 1921-07-30
Abstract: 187,351. Franklin, H. J., and Pettingall, J. July 30, 1921. Composition fuel which is moulded into block fcrm is made up of 10 parts by weight of asphalt or pitch, 800 parts of fuel oil. 25 parts of shale, and 45 parts of coal or coke, with or without 160 parts of tar, and 20 parts of peat impregnated with fuel oil. The shale and coal are finely ground and stirred in a mixing vessel into which steam is injected. Finely divided peat impregnated with oil may be added. The asphalt and sometimes tar, and fuel oil are heated in a separate vessel and the mixture when liquid is combined with the shale &c., the incorporated mass being moulded on cooling.
Patent GB-714472-A (GB)
Title: Improvements in or connected with toy books
Inventor: ROSENFELDER ERNEST
IPC: A63H5/00
Filed: 1952-08-14
Abstract: 714,472. Toy books. BRIMAX AGENCIES, Ltd. Aug. 13, 1953 [Aug. 14, 1952], No. 20448/52. Class 16 A toy or picture book with front and back covers 1, 3 for pages 2 has one of the covers, the front cover 1, as shown, provided with a backing sheet 1a secured thereto so as to provide a hollow airtight space 4 in which a sound-producing device 5 is secured to communicate with the outside through a hole 6 in the cover, or in the backing sheet, and spring means 7 normally tending to urge the backing sheet 1a away from the cover 1 in the hollow space 4 so as to fill it with air. Protective means 8 are secured either side of the device 5 to prevent damage thereto. The device 5 may be. arranged to produce sounds either on expulsion of air from or drawing in of air into the space 4 or both times.
Patent GB-575267-A (GB)
Title: Improvements in and relating to positioning means for use with optical apparatus, particularly microscopes
IPC: G02B21/32
Filed: 1943-12-07
Abstract: 575,267. Microscopes. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 7, 1943, No. 20449. Convention date, Dec. 11, 1942. [Class 97 (i)] A stage for holding an object in an optical apparatus, such as an electron or other microscope, and providing for independent adjustments of'the object in three directions, comprises a supporting plate 2 carrying vertical slideway members 3, 4 engaged by a vertical traversing member 7 which carries horizontal slideway members 16, 17 engaged by a horizontal traversing member 23, the last named being provided with longitudinal slideway members 28, 29 which are perpendicular to the slideways 19, 20 and are engaged by the member 33 comprising the article carrier 1 ; three mechanisms each comprising actuating means pivoted on an axis fixed in relation to the supporting plate 2, and operable by forces acting perpendicularly to it, control respectively the three traversing members. As shown, the member 7 is adjusted by a lever 39, which rocks a shaft 46 carrying an arm 47 connected by a link 48 to a fixture 49 secured to the slideway 16. A spring 44 urges the member 7 downwardly. The member 23 is adjusted horizontally by a lever 37 which through an arm 41 rocks a vertical shaft 42 carrying a finger 43 engaging a plate 27 carried by the member, which is urged to the left by a C-spring 50 engaging an abutment 51 carried by it. The longitudinal movement of the member 33 is effected against spring action by similar mechanism operated by a third lever 38. The levers may be adjusted and maintained in their adjusted positions against the action of the springs by screwed rods or other devices. The slideways may, as shown, be provided with ball bearings.