baber/WOPTO huggingface dataset:
Patent GB-810256-A (GB)
Title: Improvements in or relating to means for varying the optical nature of a beam emitted by a source of light
Inventor: YU LUEN-WAI
IPC: F21Y101/00
Filed: 1957-05-31
Abstract: 810,256. Controlling light emission. SUNBEAM MANUFACTURING CO. Ltd. May 31, 1957, No. 17323/57. Class 75(4) For varying the light emitted by a source e.g. the bulb 4 of an electric torch, a lens is provided having a central convex portion 9 and an annular plane portion 10, in conjunction with a reflector 11 shaped so as to direct the rays through the annular portion in a concentrated bean and an opaque member 12 movable to cut off the rays from the light source to the reflector. The lens is spaced from the light source so that the convex portion 9 produces a divergent beam. The opaque member may be of frusto-conical or of cylindrical shape and may be formed internally as a reflector The lens may be in one piece or may consist of a sheet of transparent material to which a central lenticular portion is attached. For changing the position of the opaque membr 12, it may be connected to an L-shaped strip 13 provided with a knob 15 movable in a slit in the side of the casing 1 of the torch.
Patent GB-1315454-A (GB)
Title: Lock mechansisms operable by magnetic keys
IPC: E05B47/00
Filed: 1971-05-26
Abstract: 1315454 Locks HUWIL-WERKE HUGO WILLACH & SOHNE 26 May 1971 [12 Nov 1970] 17354/71 Heading E2A A lock mechanism operable by a key with coded magnets comprises two superimposed portions 1, 3 having detent body chambers formed of locking chambers 2 and opposite chambers 4, the number of opposite chambers exceeding by one the number of locking chambers, each detent body chamber receives a spherical, magnetizable detent body 6 and during locking and unlocking of the lock mechanism is displaceable through a channel joining one opposite chamber to the neighbouring opposite chamber. The chambers 2 and 4 are formed respectively in the portions 1 and 3. The portion 1 is integral with a bolt 10 which is engageable with a pin 11. A key 7 with magnets 8 positioned to correspond with the positions of the connecting channels 5 is applied to the portion 1 to move the detent bodies 6 which are made of magnetizable materials into the connecting channels to allow the portion 1 to move the bolt 10 into the locking or unlocking position. To prevent unauthorised release of the lock the walls of the chambers 2 have projections and additionally or alternatively the connecting channels 5a adjacent thereto have projections. A spring loaded ball catch retains the portion 1 in locking or unlocking position. In a modification a bolt 15, Fig. 7 is spring urged to latching position and is locked by a shoulder 14 on the portion 1 engaging a shoulder on the bolt. The bolt is withdrawn by applying the key to move the portion 1 to disengage the shoulder on the bolt and by applying pressure to the bolt handle 19. In a further embodiment the detent body chambers are superimposed and are in rows. In a further embodiment the detent bodies 6 move in chambers in two superimposed plates 20, 21, in a shell 22. The plate 20 is immovable in the shell and the plate 21 is movable against the action of a spring 26 relatively to the plate 20 only when the magnetic key is applied, Fig. 11 shows the plate 20 in locking position engaging a hook 27.
Patent GB-465084-A (GB)
Title: Clock with a rotating advertising disc or drum
IPC: G09F23/16
Filed: 1936-06-22
Abstract: 465,084. Moving signs. STERNBERG, E. June 22, 1936, Nos. 17358 and 17359. Convention dates, July 18, 1935 and Jan. 2, 1936. [Class 3 (i)] An advertising device comprises a disc bearing display matter around its edge, the disc being mounted centrally in front of a clock face and the display matter being located outside the ring of clock numerals. In a modification the disc may form the end of a cylinder which bears on its circumference display matter in lieu of, or in addition to, that on the disc, and which may surround the clock. The disc &c. may be mounted on the hand spindle of the clock and be rotated thereby, or may be driven by an auxiliary device. Two discs, one on each side of the clock may be provided with or without a secondary clock face, and the upper part of the disc may be concealed by a hood covering a light source. The disc, which has a transparent central part to allow the clock face and hands to be seen, may bear a hand and/or numerals around its extreme edge denoting seconds, and the numerals may be viewed through a window in the hood. The whole apparatus may be supported by a suction bowl. The Figure shows a form adapted for large clocks in which the weight of the comparatively heavy disc 7<1> is taken by a ball or other bearing 11, 12 carried by a stationary glass sheet 15, which may open to give access to the disc for charging .and other purposes. The disc 7<1> may be driven through a pin-and-arm aligning connection 19, 20, with spring clutch 22, from the clock spindle 8, or through a friction wheel mounted on a motor 24. A cap 18 covering the bearing 11, 12 may carry advertisements. The disc may be driven at a speed other than that of the clock, or in the opposite direction. When a synchronous clock is employed, a reverse drive may be provided to keep the clock going when the current supply fails, the current when reinstated winding up the reserve drive.
Patent GB-185878-A (GB)
Title: Improvements in high speed disintegrators
IPC: B02C13/00
Filed: 1921-06-25
Abstract: 185,878. Plauson's (Parent Co.), Ltd., (Plauson, H.). June 25, 1921. Mills and apparatus.- In high-speed rotary disintegrators of the kind described in Specification 176,002, one or more baffle-plates are used to check the formation of eddy currents. As shown, a disintegrator 2 mounted eccentrically. in a liquid-tight casing 1 and having rotary beaters 11 co-operating with fixed beaters 9, 10 on the casing and a cylindrical deflection 16 respectively, is provided with cylindrical baffle-plates 26 with orifices 25 through which the liquid passes.
Patent GB-139399-A (GB)
Title: Improvements relating to lubricators
IPC: F16N21/06
Filed: 1919-07-11
Abstract: 139,399. Partridge, R. F. July 11, 1919. Oil-hole closures.-A lubricator for motor-vehicles &c. is provided with a hinged lid lying wholly within the mouth of the oil cup. The lid has two pivot projections d lying in oblique slots c in the edge of the cup, and a stop projection f engaging a notch e from which it may project slightly to enable the lid to be opened. The pivots d are retained by closing over them one side of each slot c. The lid may be of domed sheet metal and may have a flange at its edge.
Patent GB-1105434-A (GB)
Title: Glass-ceramic article and method
IPC: C03C21/00
Filed: 1965-04-26
Abstract: A strengthened glass-ceramic article has an outer portion compressively stressed with respect to the inner portion.  The inner portion contains a parent crystal phase (p) which contains an alkali metal ion (a) and in the outer portion at least a portion of the ion (a) is replaced by an ion (b) of larger diameter.  The phase (p) is b -spondumene, thermally stable b -eucryptite, nepheline, carnegieite or "stuffed" b -quartz. The article is strengthened by contacting the surface with a material containing ion (b), at 200-800 DEG  C.  Ion (a) may be, e.g., Li, Na or K, and ion (b) may be e.g., Na, K or Cs. In a previous step, the article may be exposed to ion-exchange with Li-containing material.
Patent GB-258697-A (GB)
Title: Improvements in adjustable rockers for valve-operating mechanism
IPC: F01L1/20
Filed: 1925-07-08
Abstract: 258,697. Triumph Cycle Co., Ltd., and Parnell, F. G. July 8, 1925. Actuating-mechanism. In valve-operating mechanism, particularly for internal-combustion engines, in which the clearance between the rocker and valve stem is adjusted by means of an eccentric bush 7, the bush is clamped to the rocker in its adjusted position by a. screw 4 engaging a split portion 3 of the rocker. The bush has an enlarged head 9 at one end for receiving a spanner.
Patent GB-571671-A (GB)
Title: Improvements in, or relating to, windows for buildings
IPC: E06B1/12
Filed: 1943-10-26
Abstract: 571,671. Window frames. HILLS PATENT GLAZING CO., Ltd., and HINCHLIFFE, E. D. Oct. 26, 1943, No. 17592. [Class 20 (iii)] A metal window adapted to be built into a window opening has a double rebate on its exterior face to hold glazing or to engage hinged sashes 14, 15. The frame is preferably of channel form one limb of the channel being formed into the rebates 2, 3 of which the outer rebate 2 is secured to plaster &c. When applied to building comprising-stanchions and slabs, lugs &c. 21 secured to the frame are welded or riveted thereto or secured to brackets 24 carried by the stanchions 20, Fig. 4.
Patent GB-578352-A (GB)
Title: Improvements in or relating to apparatus for developing sensitized layers
IPC: G03D7/00
Filed: 1944-09-14
Abstract: 578,352. Photographic developing apparatus. MASON & SONS, Ltd., E. N., MASON, B., NORMAN, D. J., and SOWARD, F. A. Sept. 14, 1944, No. 17600. [Class 98 (ii)] Developing apparatus is provided with a chamber having a perforated surface over which the layer to be developed is moved and in which is located a device for evaporating the developing gas, and the gas, after evaporation is subjected to the action of rotary blades by which it is distributed over the perforated surface and the sensitized layer. The perforations in the surface are preferably countersunk and may be of circular, rectangular, diamond, or hexagonal shape. As shown, the apparatus comprises a casing 1 having a feed opening 2 and a delivery opening 3, the casing being located above a trough into which the developed layers fall. The top of the chamber 4 mounted in the casing 1 is an arched apertured plate 5, and the opening 2 has guides 6, 7 guiding a sensitized layer on to the plate 5. The chamber 4 has a jacket 8 containing an electric or other heater. Inside the chamber 4 is a perforated tube 9, which may be of truncated conical form, of which the opposite ends are rotatably mounted in the casing 1, preferably in ball bearings. The tube 9 carries blades 11 extending the full length thereof. Ammonia or other solution is supplied to one end of the tube 9 from a container. An electric or other heater 13 extends along the entire length of the tube 9. The sensitized layers are moved over and pressed against the plate 5 by an endless blanket 14, e.g. of rubber; passing over rollers 15, 16. One or more guide rollers may be provided for the return run of the blanket 14, and a take-off brush roller 17 is provided. A drainage pipe 18 provided with a U-trap is provided at the bottom of chamber 4. According to the Provisional Specification, a spiral groove may be provided on the inside of the perforated tube, and the heater preferably extends along only half of the perforated tube.
Patent GB-859637-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B57/14
Filed: 1958-06-02
Abstract: 859,637. Sewing machines. MARCHANT, H. J. May 29, 1959 [June 2, 1958], No. 17609/58. Class 112 A device for use with shuttle mechanism including an oscillating shuttle driver comprises a slide adapted for attachment to an oscillating part of the shuttle mechanism so as to ride around the shuttle race with the shuttle to eject from the shuttle housing threads entering between the race and the oscillating parts of the shuttle mechanism. As shown, an arcuate slide 10 is connected by a resilient arm 17 to the shuttle driver 27, the latter oscillating the shuttle body 28 on a race 25.
Patent GB-790101-A (GB)
Title: Improvements relating to sheet metal clips
IPC: F16B21/08
Filed: 1956-06-07
Abstract: 790,101. Clips. TINNERMAN PRODUCTS, Inc. June 7, 1956 [July 26, 1955], No. 17619/56. Class 44 [Also in Groups X and XXXVI] A clip 10 for securing an article to a panel P comprises a sheet metal body defining a base 11, article engaging means integral with the base, a shank comprising a pair of flanges 20 projecting from the underside of the base 11 in substantially parallel and spaced relation, the flanges each having one end provided with a cutout defining an abutment 24 adjacent the base and a hook 22 extending outwardly from the abutment, the flanges being receivable in an opening 1 in the panel with the base at one side of the panel and the hooks extending through and engaging the reverse side of the panel adjacent the opening 1 with the abutment 24 abutting the wall of the opening, one or each flange having its opposite end provided with a co-operating abutment 28 adapted to engage an opposite wall of the panel-opening to retain the flange against lengthwise shifting, and an outwardly projecting shoulder 32 on one or each flange adapted to engage the reverse side of the panel adjacent the panel-opening to lock the flange in position in the panel opening. As shown, the clip is used to secure tubes or cables C to the panel P for which purpose the article engaging means is constituted by an extension 40 of the base 11 in the form of a pair of spring arms 41, 42. The shoulder 32 is formed by a tongue 30 bent out from the flange 20. A lip 13 is also bent out from the base 11 to facilitate assembly of the clip to the panel. In another arrangement Figs. 5 and 6 (not shown) for attaching a channel shaped moulding to a panel, the base of the clip is formed with springing arms on to which the moulding is sprung.
Patent GB-279752-A (GB)
Title: Improvements in steering wheels for automobiles and similar vehicles
IPC: B60R25/022
Filed: 1927-07-02
Abstract: 279,752. Francis, C. T. July 2, 1927. Guarding against unauthorized use.-A locking device consisting of a ring 7 screwed to the shaft 3 and a rotatable bolt 14, 15, is housed in a recess in the hub 2 of the steering wheel. In the position shown the wheel is fastened to the shaft 3. If the bolt is rotated by means of a key through 180� the part 15 is freed from the ring and connection between the wheel and shaft is broken.
Patent GB-975362-A (GB)
Title: Process for the manufacture of electrical insulating compositions
IPC: H01B3/44
Filed: 1961-05-15
Abstract: Vinyl chloride, together with not more than 20 wt. per cent. of a comonomer such as vinylidene chloride or vinyl propionate or acetate, is suspension polymerized in an aqueous medium in the presence of 0.1 to 3 wt. per cent. (of the monomers) of an oxide or hydroxide of a Group IIA metal and the product is separated and dried without removal of the metal oxide. A protective colloid, e.g. part hydrolysed polyvinyl acetate, methyl cellulose, an alginate or tragacanth may also be used. The products are useful in electrical insulating compositions.  In examples vinyl chloride is polymerised in (1) alone and (2) with vinyl acetate. The presence of part hydrolysed polyvinyl alcohol or methyl cellulose and magnesium oxide using lauroyl peroxide as catalyst and the product compounded with (1) octyl phthalate and lead stearate and (2) dioctyl phthalate, lead stearate, tribasic lead sulphate and a proprietary pigment. Specification 455,742 is referred to.
Patent GB-319299-A (GB)
Title: Improvements in or relating to hollow internally reinforced structures or structural units
IPC: B64C3/18
Filed: 1928-06-19
Abstract: 319,299. Bart, B. June 19, 1928. Bodies. - Hollow internally reinforced structures or structural units such as the wings, fuselages &c. of aircraft, and the bodies of motor cars are formed of electrode posited metal components integrally connected in one metallic piece by electrically deposited metal. An aeroplane wing is described, constructed with three tubular spars 14, 15, 16 which may be formed by depositing a thin coating of nickel or copper on celluloid formers. Spiders 22, 23 of radiating oval tubes are formed by depositing metal on wax castings that are subsequently melted out, as also are the upper and lower profile pieces 25, 26 which are of the section shown in Fig. 4. The parts are assembled together and temporarily secured by spot welding, after which the whole framework is put in an electrolyte and copper or nickel deposited to form an integral whole. The fuselage is similarly formed from hollow rings 28 and rectangular tubes 18. The wings, fuselage frame and any struts 13 required are then assembled together, the spaces 33, 34, are filled with wax, which is then covered with graphite or an exceedingly thin film 37 of sprayed silver, and a metallic enclosing coating 37 is deposited to form the coverings of both the wings and fuselage which are thereby connected to. gether substantially without other fastening means.
Patent GB-252565-A (GB)
Title: Improvements in latch bolts
IPC: E05B17/00
Filed: 1925-07-11
Abstract: 252,565. Erebus Manufacturing Co., Ltd., and James, J. E. July 11, 1925. Latches, sliding, of the kind provided with anti-frÝction rollers at their heads, have the rollers mounted on ball bearings. The roller B, Fig. 2, may have balls b between it and the pin C supported in lugs a on the latch-bolt head, or the balls may be mounted in annular recesses f, Fig. 3. Alternatively, the pin C may be integral with or rigidly secured to the roller B and the balls mounted between the pin and the walls of -the recesses in the lugs a, Fig. 4.
Patent GB-497760-A (GB)
Title: Improvements in or relating to electrical oscillators and time base circuits
IPC: H03K4/16
Filed: 1937-06-26
Abstract: 497,760. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEMP, R. J. June 26, 1937, No. 17865. [Class 40 (v)] A valve generator of the blocking-oscillator type for producing peaked impulses or sawtooth waves comprises an auto-transformer back coupling with one end of the coil earthed, the tapping point connected to the valve cathode, and the other end connected through a time-constant combination to the control electrode of the valve. The valve is of the electron beam type comprising a cathode 2, Fig. 5, a cylindrical control electrode 3, a cylindrical anode 4, a flat suppressor electrode 5 and a target electrode 6. Aligned slots are formed in the members 3, 4, and 5 and the target 6 is situated beyond these slots. Back coupling between the anode and control electrode circuits is effected by the autotransformer 7, one end of which is earthed at E, the other end connected to the control electrode 3 through a condenser-shunted resistance 8, 9, and the tap 10 to the cathode 2. The anode 4 is connected to earth through a portion of the battery 12, which is also connected to the target 6 through a resistance 13. When current passes momentarily through the valve it is almost immediately cut off by a negative charge accumulating on the control electrode 3, and the valve is blocked until this charge has leaked away through the resistance 8, or until the grid is rendered positive by an external synchronizing pulse, applied either through the coil 15, or across an impedance in series with the coil 7. The output voltage taken from the target 6 thus comprises short peaked impulses, of the form shown in Fig. 2. If a condenser 16 is connected between the target and earth, the voltage across it assumes a saw-tooth form. When a choke coil is substituted for the resistance 13, Fig. 3 (not shown), the output pulses extend both above and below the mean voltage. The Specification states that a square-topped alternating voltage is produced when the tap 10 is situated near the upper end of the coil 7.
Patent GB-785342-A (GB)
Title: Improvements in and relating to the manufacture of filter elements
IPC: D21J1/00
Filed: 1955-06-21
Abstract: 785,342. Filters; filtering media. GENERAL MOTORS CORPORATION. June 21, 1955 [July 19, 1954], No. 17892/55. Class 46. [Also in Group V] A stack of resin-impregnated fibrous discs 150 are moulded (see Group V) to form a filter. Each disc has a central passage 182, for conducting away filtered fluid, and radial passages 180 which terminate short of the passage 182. A wire bail 174 is held in grooves 170. The end discs 184 are moulded to such a shape as to provide smooth end surfaces.
Patent GB-317176-A (GB)
Title: Improvements in or relating to the manufacture of casks, barrels and like containers
IPC: B27B3/04
Filed: 1928-06-21
Abstract: 317,176. Kaempf, R., and Lankoff, A. June 21, 1928. Lathe and like drivers and carriers. - A wooden block, to be sawn into split conical wooden blanks for making into casks, is held between spiked plates 18 engaged by axles 12, the upper axle being adjustable horizontally whilst the lower axle drives its plate 18 through projections 19 which are unaffected by the adjustment of the axis of the block out of the vertical.
Patent GB-1102575-A (GB)
Title: Polymers prepared from aromatic ethers
Inventor: HARRIS GLYN ISLWYN
IPC: C08G61/00
Filed: 1964-04-30
Abstract: Polymers are obtained by self-condensation of compounds of formula R1(CH2OR)x, where R is an alkyl group, R1 is a divalent or trivalent aromatic residue which is free of oxygen bonded directly to the aromatic nucleus, and x is 2 or 3, whereby aromatic hydrogen atoms in R1 are eliminated by reaction with -OR radicals with the formation of an alcohol.  The aromatic residue may contain nitrogen or sulphur atoms, preferably linking two or more aromatic nuclei. The polymerization may be carried out in the presence of a Friedel-Crafts catalyst, with heating, optionally in a solvent.  In Examples polymers are obtained from p-xylyleneglycol dimethyl ether and from p-xylyleneglycol dibutyl ether.
Patent GB-319078-A (GB)
Title: Improvements relating to weighing scales
IPC: G01G1/00
Filed: 1928-06-22
Abstract: 319,078. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, and Berkel, C. F. M. van. June 22, 1928. Pendulum-weight apparatus; vibration, (preventing and neutralizing.-A weighing-scale of the kind in which a hanging weigh-pan depends from a bulbous casing mounted on a standard and containing automatic counterbalancing and indicating mechanism, is provided, in addition to and separate from the ,counterbalancing mechanism, with means for counterbalancing the pan acting directly on the member by which the pan is suspended. A weigh-pan o is connected through a lever u to a pendulous resistant d and index g, the lever being weighted to counterbalance the pan. The pan has a hook-shaped support p and is removably suspended from a member k depending from the lever u. The lower end k<2> of the member k is connected to the piston s of a dashpot t and carries a spring r that bears upon the underside of the support p to restrain the lateral movements of the pan.
Patent GB-1459083-A (GB)
Title: Strain gauge transducer
IPC: G01L5/16
Filed: 1975-05-01
Abstract: 1459083 Strain gauge transducers FORD MOTOR CO Ltd 1 May 1975 [13 May 1974] 18106/75 Heading G1N A strain gauge transducer comprises a square steel plate 36 Fig. 2 with holes 52 and grooves 56, 58 in which are bonded a plurality of strain gauge rosettes 84 each comprising two resistance strain gauges 62, 64, Fig. 5, at right angles to each other. The plate 36 is extended centrally to form the spindle 38, Fig. 1, of an undriven wheel of a motor vehicle and fixed by bolts 26 to the vehicle suspension system. The resistors are interconnected in five bridge networks arranged to measure the forces along the X, Y, Z axes and the movements about the X and Z axes.