baber/WOPTO huggingface dataset:
Patent GB-1528820-A (GB)
Title: Lockable spring
IPC: B60J5/10
Filed: 1976-03-25
Abstract: 1528820 Gas springs with automatic locking STABILUS GmbH 25 March 1976 [26 March 1975] 12040/76 Heading F2S A pneumatic or hydropneumatic pistoncylinder spring, for opening a vehicle boot or bonnet or a furniture flap as it extends, locks automatically when it has extended to a certain length, owing to closure of a flow path from one side of the piston to the other. In Fig. 1, on extension, a flow path provided by grooves 1 closes when the piston 5 reaches the portion 8, and so the spring is locked in this position unless a pull on the piston-rod 4 moves the piston into a further grooved portion, when extension will resume until the grooves are again closed off. On compression a one-way valve element 12 in the piston opens to render the locking inoperative. In Fig. 2, on extension, a flow path 17 through the piston 5 closes when an enlarged part 15 on a rod 14 fixed to the cylinder base meets a seal 20 in the piston. A pull on the piston-rod will move the seal past the part 15 to remove the locking effect. On compression, fluid flows through passage 17, or passage 18 past valve element 19, which are subject to locking. Alternatively, the valve element 19 is supplied by the passage 18<SP>1</SP> to by-pass the locking effect. Instead of a narrow rod 14 with an enlarged part 15, the rod may (not shown) be of constant diameter with grooves to release the locking. In the embodiment of Fig. 3 (not shown) the locking mechanism is similar to that of Fig. 2 and the one-way valve similar to that of Fig. 1.
Patent GB-886232-A (GB)
Title: Improvements relating to the formation of p-n junctions in semi-conductor material
Inventor: CHICK DOUGLAS RICHARD
IPC: H01L21/00
Filed: 1957-04-12
Abstract: 886,232. Semiconductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 11, 1958 [April 12, 1957], No. 12070/57. Class 37. [Also in Group XL (a)] PN junctions for use in rectifiers and transistors are made by bombarding the surface of a body of material of one conductivity type with protons to transmute some of the atoms of the material in the surface layer to atoms of an impurity characteristic of the opposite conductivity type. For instance a junction may be formed in P-type germanium, preferably <SP>74</SP>Ge, by conversion of some of the <SP>74</SP>Ge in the surface to <SP>75</SP>As. Junctions may also be produced in silicon, in compounds of aluminium, gallium or indium with phosphorus, arsenic or antimony, compounds of bismuth or antimony with selenium or tellurium, and in cadmium sulphide and selenide. In these compounds the surface layer of P-type bodies is converted to N-type by transmuting the higher valency element of the compound into the next element of higher atomic number, and the surface of N-type bodies into P type by transmuting the lower valency element into the next element of lower atomic number. In this way a junction is formed in P-type indium antimonide by transmutation of antimony to tellurium with emission of gamma radiation and in N-type indium antimonide by transmutation of indium to cadmium with the emission of alpha particles. The junctions are formed within a few thousandths of an inch of the surface on account of the short range of protons in the material. The bodies may be annealed after bombardment to remove lattice deformations.
Patent GB-768222-A (GB)
Title: Improvements in and relating to measuring, indicating or recording devices
IPC: G01F1/82
Filed: 1955-04-27
Abstract: 768,222. Rotary meters. GENERAL ELECTRIC CO. April 27, 1955 [April 28, 1954], No. 12177/53. Class 110 (2). [Also in Groups XIX and XXXVIII] A flow meter comprises a fluid-tight casing 1 conducting fluid from left to right, Fig. 1, from an inlet port to an outlet port 2 and houses an upstream impeller 3, rotated at uniform velocity, and a turbine 5 restrained in angular movement about shaft 6 by three springs 9, 10, 11 (see Group XIX) to provide two indications, one over a uniform scale, the other over a two-part scale, contracted at higher values. The angular momentum imparted to the fluid by the impeller 3 is wholly absorbed by the turbine which deflects angularly in proportion to the mass of fluid flow per unit of time.
Patent GB-1383955-A (GB)
Title: Removal of burrs from metal or metal alloy articles
IPC: B23D79/00
Filed: 1972-03-16
Abstract: 1383955 Brazing; making heat exchanges; removing burrs PHILCO-FORD CORP 16 March 1972 [16 March 1971] 12257/72 Headings B3A B3R and B3V [Also in Division C7] In removing burrs on a formed article of a metal or alloy of the metal there is provided in juxtaposition with the burrs an alloy of said metal which has a melting temperature below that of said article, the juxtaposed alloy is heated to a temperature at or above its melting point but below the melting point of the article for a time sufficient to cause the burrs to be dissolved in the melted alloy and the melted alloy is cooled to form a smooth surface free of burrs. A heat exchanger is formed by assembling dished plates 11, port members 23, sinuous fins 12 in an air passage between the plates 11 and fins 13 in refrigerant passages between the plates, each element of aluminium alloy being clad with a fluxless brazing alloy comprising 77% Si, 2-3% Mg, balance aluminium and the assembly is heated to 1130‹ F. in a vacuum furnace to melt the brazing alloy. The fins 13 were fabricated by stamping slits and convoluted sections 14 in staggered array in a thin plate previously coated with the brazing alloy and burrs, 15 resulted. During the heating in the vacuum furnace the brazing alloy clad on the fins 13 melts and forms with the burrs a eutectic alloy, dissolving the burrs and leaving a smooth surface.
Patent GB-454547-A (GB)
Title: Improvements in and relating to electrical contact lugs and wiring installations
IPC: H01R4/02
Filed: 1936-04-30
Abstract: 454,547. Electric couplings. CINCH MANUFACTURING CORPORATION, 2335, West Van Buren Street, Chicago, U.S.A.- (Assignees of Del Camp, S. M.; 1424, South 19th Avenue, Maywood, Illinois, U.S.A.) April 30, 1936, No. 12317. Convention date, May 10, 1935. [Class 38 (i)] A contact lug 5 for use in electric wiring installations comprises a strip of conducting metal in one end of which an eyelet 6 is formed. A T-shaped aperture 7 is punched from the opposite end, and, from part of the displaced material, a projection 8 is formed. A number of lugs are attached to a bar 1 of nonconducting material by means of the eyelets. The projections 8 engage the lower edge of the bar and prevent the lugs from swinging laterally towards each other. The T-shaped slots may receive and hold a bunch of wires A in horizontal or vertical alignment. The lower edge of the lugs may be curved to aid in holding the wires together before soldering them in position. The strip may be attached to a supporting structure by means of brackets 2.
Patent GB-790689-A (GB)
Title: Magnetic separating device
IPC: B03C1/28
Filed: 1955-04-28
Abstract: 790,689. Magnetic separation. HOFF, R. C. April 28, 1955, No. 12334/55. Class 117 A magnetic separator which may be used in floor openings, vertical shoots or hoppers, comprises stainless steel tubes 13 secured to a frame 2-5 and containing permanent magnets 14. A removable protective grid formed of rods 16, 17 is supported above the tubes 13, and wing members 20, 21 may be adjusted to suit the size of the opening or duct in which the separator is to be used.
Patent GB-862277-A (GB)
Title: Improvements in or relating to stretching devices
IPC: A61H1/02
Filed: 1958-04-18
Abstract: 862,277. Tension apparatus. ALDRIDGE, A. E. April 14, 1959 [April 18, 1958], No. 12401/58. Class 81 (2). A surgical tension table 2 has adjustable members 26, 24 to which the patient's head and feet respectively are secured, and these may be moved simultaneously, to vary the distance between them, by right- and left-handed threads on a rod 6, which is rotatable by a handle 50. The drive is transmitted through a worm 16 and worm-wheel 14 and a torque-limiting clutch, of the spring-loaded ball type, is incorporated between the handle and the worm.
Patent GB-661495-A (GB)
Title: Improvements relating to the production of acids of the ascorbic acid type by enolisation from 2-keto-hexonic acids or esters thereof
IPC: C07D307/62
Filed: 1949-05-10
Abstract: An acid of the ascorbic acid type is obtained by enolizing a 2-keto-hexonic acid by heating it in a water-free solvent with an alkali compound of an amphoteric heavy metal to precipitate a heavy metal salt of ascorbic acid, treating this precipitate with hydrogen sulphide or sulphur acid, filtering to obtain a filtrate containing soluble ascorbic acid, concentrating the filtrate in vacuo at a low temperature, and working up the concentrate to pure ascorbic acid. As 2-keto-hexonic acids the examples employ 2-keto-l-idonic acid and 2-keto-d-gluconic acid.
Patent GB-352578-A (GB)
Title: Improvements in apparatus for use in disinfecting water in flushing cisterns
IPC: E03D9/03
Filed: 1930-04-23
Abstract: 352,578. Disinfecting-apparatus for water-waste preventers. PARKER, W., 17, South Royd Park, Pudsey, Yorkshire, and BRACE, L., 89, Greenthorpe Road, Bramley, near Leeds. April 23, 1930, No. 12514. [Class 26.] Disinfecting-apparatus for flushing cisterns, comprises a float-actuated tube 5 which moves on the discharge leg of a siphon 4 communicating with a receptacle 2 and which is provided with an aperture 5b disposed so that the discharge of disinfectant commences when the tube 5 is in its lowest position, an annular member 4d which is adjustable on the siphon leg, serving to control the period of discharge. The apparatus is secured in position by means of a bracket 3 secured to the receptacle 2 and passing over the wall x of the cistern, while a member 5a closes the siphon outlet when the tube 5 is in its highest position.
Patent GB-780952-A (GB)
Title: Improvements relating to mass spectrometers
IPC: H01J49/38
Filed: 1955-04-29
Abstract: 780,952. Mass spectrometers. GENERAL ELECTRIC CO. April 29, 1955 [April 30, 1954], No. 12514/55. Class 39(1). An ion resonance mass spectrometer of the type described in Specification 780,951 is supplied by an R.F. oscillator in which the frequency of the output varies inversely as the movement of a tuning element-variable con-' densers 17, 18. This compensates for the inverse relationship between mass and frequency so that there is obtained a linear relationship between mass and tuning movement. The movable elements of condensers 17, 18 are mechanically coupled to a linear scale mass indicator 25. The oscillator is of the resistancecapacity tuned type. The R.F. field is applied to the spectrometer plates 12 through a cathode follower stage 24. The load resistance includes a variable resistor 26 or a filter for attenuating the signal. By attenuating the signal a linear relationship between resolving power and mass may be obtained ; the attenuator is ganged with the tuning movement. The oscillator has a ratio of at least 10 to 1 between the highest and lowest frequency it can supply.
Patent GB-140646-A (GB)
Title: Improved method of making flexible safety-razor blades with bright letters or signs
IPC: B05D5/06
Filed: 1919-05-19
Abstract: 140,646. Pedersen, H. May 19, 1919. Etching. - Flexible safety-razor blades with bright letters or signs and with a rust-proof galvanic plating on a black-corroded ground that has been deadened by polishing are produced by first putting the letters &c. on the scoured steel blade by means of a wooden stamp, immersing the blade in a solution of selenite of copper to corrode the un-coloured surface black, polishing the blade on a rotary felt-disk with wet pumice powder and thereby removing the colour, and finally providing the blade with a thin galvanic nickel-plating. The solution of copper sedenite is prepared by dissolving copper sulphate in hot water and immediately adding crystalline selenium oxide.
Patent GB-696896-A (GB)
Title: Improvements relating to crystal valves
IPC: H01L23/04
Filed: 1950-05-19
Abstract: 696,896. Semiconductor rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., and NEWMAN, D. J. June 26, 1951 [May 19, 1950; July 26, 1950], Nos. 12626/50 and 18680/50. Drawings to Specification. Class 37. In a crystal valve having a casing of thermoplastic material the leads to the electrodes have the parts extending through the wall of the casing kinked or a length of metal wire or ribbon affixed transversely to them to anchor the leads to the casing and increase their torsional resistance to movement. Reference has been directed by the Comptroller to Specification 632,419.
Patent GB-710034-A (GB)
Title: Improvements in or relating to self sustaining arched diaphragm structure
Inventor: WRIGHT GEORGE WESLEY
IPC: F04B43/00
Filed: 1952-05-19
Abstract: 710,034. Pistons. TOKHEIM OIL TANK & PUMP CO. May 19, 1952, No. 12655/52. Class 122(1) [Also in Group XXVIII] In a diaphragm structure the working annulus is formed as an arched portion which increases in flexibility from the centre of the arch towards the extremities that join the remainder of the diaphragm. As shown in Fig. 4, the arched portion is crescent-shaped and joined to the outer part 7 of the diaphragm by a radius 26 which is greater than the radius 24 joining it to the centre part 6. Fig. 1 shows the diaphragm structure for a pump in which two diaphragms are arranged with the concave sides of the working annuli facing each other and the centre part of the structure clamped between plates 12, 13 on rod 10 and the edge secured between parts 5 of the casing. The space between the working annuli may be filled with gas under pressure.
Patent GB-373374-A (GB)
Title: Improvements relating to folding trestles
IPC: E01F13/02
Filed: 1931-04-30
Abstract: 373,374. Stands; trestles. McDERMID, A. K., 102, Duke Street, Glasgow. April 30, 1931, No. 12725. [Class 52 (v).] A folding tripod stand for supporting a barricade bar &c. comprises three or more legs, two or more-of which can be swung about axes parallel to the general longitudinal direction of the erected stand. The legs may be positively locked in the erected position. In the construction shown two legs 5 terminate in vertical pins 5a rotatably mounted in the flanges of a channel member 10 secured to a third leg 6. The lower parts of the pins 5a are square in section and engage square holes in the lower flange of the member 10 when the stand is erected. The pins have sufficient axial movement in the flanges to disengage the square portions to'fold the stand.
Patent GB-474761-A (GB)
Title: Improvements in and relating to toys
IPC: A63H11/08
Filed: 1936-05-05
Abstract: 474,761. Toys. HOFSTOTTER, F. F. May 5, 1936, No. 12729. [Class 132 (iii)] A toy which performs somersaults by rolling on its periphery comprises sections 1, 2, Fig. 3, pivoted at 3 and connected by a spring 4 accommodated in cavities 5 and 6 in the sections 1 and 2. The front section 1 is heavier than the rear section 2 and is provided with a tongue 15 fitting easily in a groove 16 in the rear section 2. Stops 19, 20, 21 and 22 determine the two extreme positions of the sections 1 and 2. Rubber pads 9 are provided on the front legs to impede sliding movement thereof and the hind legs are provided with smooth rounded ends if the toy is of celluloid or synthetic resin products, or are provided with small wheels or rollers 10 if the toy is of wood, to facilitate their movement over the supporting surface 11. On depressing the back of the toy and releasing, the toy somersaults in the forward direction, the toy rolling on its periphery which is substantially smoothly rounded and provided with a groove 12 and rims 13 and 14, Fig. 2. In a modified construction, Fig. 6, the spring 4 is so located relatively to the pivot 3 that when the spring is in the fully extended position it is just beyond dead centre. In further modified constructions one or more intermediate sections are provided between the sections 1 and 2.
Patent GB-629485-A (GB)
Title: Automatic book marker
IPC: B42D3/14
Filed: 1948-03-11
Abstract: 629,485. Bookmarkers. WHITTLE, H. March 11, 1948, No. 12743/47. [Class 16] An automatic bookmarker comprising a spring clip A for attachment to the book and a spring pressed arm B with an offset end C to engage the pages of the book, has the spring E, for securing the arm B to the clip A, arranged in a tubular part D formed by turning over the edge of one part of the clip A and the inner end of the arm B is bent inwards and tightly embraced by the spring E. A roller or bead G is fitted to reduce friction and damage to a page when turning.
Patent GB-434145-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/50
Filed: 1934-04-27
Abstract: 434,145. Folding cartons. FOX, C. A., 507, West 33rd Street, New York, U.S.A. April 27, 1934, Nos. 12797 and 12798. Convention dates, May 6, 1933 and May 27, 1933. [Class 18] A compartmental folding carton, e.g. for bottles of beer, wine, &c., is made from a blank, e.g. of corrugated board shown in Fig. 1, the section 19 forming the bottom, sections 26, 31, interlocking at 28, 33 forming the compartment bottoms, sections 27, 32 forming the compartment walls and interlocking at 29, 34 with the edge of a recessed top partition 39 apertured at 40 to take the necks of the bottles, the top being constituted by sections 17, 21 and being secured by tuck-in flap 22. An analogous blank for forming a carton with two compartments is shown in Fig. 6, and for one compartment in Fig. 11.
Patent GB-1127086-A (GB)
Title: Method and means for controlling the frequency of a mechanical resonator, and particularly of a tuning fork oscillator in a timepiece
IPC: G04C3/10
Filed: 1967-03-20
Abstract: 1,127,086. Electric timepieces. VOUMARD MACHINES CO. S.A. March 20, 1967 [March 25, 1966], No.12847/67. Heading G3T. The frequency of a mechanical resonator, such as a tuning fork for use as a frequency standard in an electric timepiece, is controlled by subjecting the resonator to a magnetic action which is variable under the effect of gravity in accordance with the orientation of the resonator, to compensate substantially for the effects of gravity on the resonator frequency. A time 1b of a tuning fork in a timepiece carries a permanent magnet 5 co-acting with an eccentric 6 of magnetic material carrying an imbalance 8 which moves the eccentric 6, when the timepiece is angularly displaced, to vary the gap g between the magnet 5 and the eccentric 6. Alternatively the tuning fork carries the element of magnetic material and the permanent magnet is mounted on the timepiece frame. Also both limbs of the tuning fork may be subjected to the magnetic action. In a further embodiment a magnet carried by a tuning fork coacts with a magnetic ball movable in a spherical recess in the timepiece frame when the timepiece is angularly displaced. Another construction comprises a screen of non- magnetic material mounted for movement, as the orientation of the resonator changes, between a magnet and an element of magnetic material, one of which is carried by the resonator and the other being fixed externally of the latter.
Patent GB-730971-A (GB)
Title: Improvements in or relating to carriers for wheeled vehicles
IPC: B66C1/20
Filed: 1952-05-21
Abstract: 730,971. Vehicle stands. BLACKBURN & GENERAL AIRCRAFT, Ltd., BRUMBY, H., and WARBURTON, D. S. May 19, 1953 [May 21, 1952], No. 12879/52. Class 79(3). [Also in Group XXX] Each pair of wheels of a wheeled vehicle is supported from a pair of parallel rails 1, 2 by a carrier provided at each end with rollers 1<SP>1</SP>, 21, Fig. 3, and joined by a stretcher of fabric or similar material in which are formed apertures 4 which permit lashings to be secured to the members 1, 2. As illustrated an adjustable chain or cable lashing 6 passed around the tyres of a vehicle is secured to the members 1, 2 by shackles 7, 8. Further lashings may pass around the vehicle axle. Cable clamps 9 at each end of the frame are adapted to engage a cable by which the vehicle is towed along the rails. The invention may be employed for supporting vehicles from elevated rails extending along each side of the freight compartment of an aircraft as described in Specification 730,969, [Group XXXIII], and for supporting vehicles on the lift for loading aircraft described in Specification 730,970, [Group XXX].
Patent GB-1362945-A (GB)
Title: Plastic buckle or adjuster
IPC: A44B11/12
Filed: 1973-03-16
Abstract: 1362945 Buckles KOHSHOH Ltd 16 March 1973 12889/73 Heading E2B A plastics buckle or adjuster comprises plate members 2, 4 having at opposite ends thereof hinge means 6, 8 to connect the members together, one of the members being provided with clamp means 10 at one side thereof for restraining a belt, band or strap from moving longitudinally and a slot 12 at the other side thereof for passing one end of the belt therethrough to hold it in place. Either or both hinge means comprise a laterally projecting journal 16, Fig. 13, formed integrally with one of the plates 2 at a longer side thereof and provided with a stopper head 15 of larger diameter than the journal, and a bearing 18 formed integrally with the other plate 4 at a position corresponding to that of the journal and provided with a bearing hole 17 in which the journal is adapted to engage; the journal is adapted to fit in the corresponding bearing either from the inside of the buckle to the outside or vice versa. As shown, the buckle includes two journals 14, 16, Fig. 1, and corresponding bearings 18, 20, the stopper heads 13, 15 being hemispherical or, alternatively, frusto-conical, the bearing holes 17, 19 being of corresponding form; the stopper heads, as shown in Figs. 4 are forced through the holes. In modifications, (a) the bearings are provided with journal holding holes 17A, Figs. 6 and 27, of semi-circular shape, (b) the buckle is provided with hinge means comprising a journal 16 and bearing 18 and a flexible hinge strip 120, Fig. 13, (c) both hinge means comprise flexible strips 120, (d) the clamping means are formed by ridges 110, Fig. 17, on the plate 2 and anti-slip means 25 are formed on the plate 4, and (e) interengaging means to lock the two plates together comprise projections 24A, 24B, Fig 21, and recesses 26A, 26B.
Patent GB-266574-A (GB)
Title: Dental impression trays
IPC: A61C9/00
Filed: 1926-05-20
Abstract: 266,574. Harris, P. A. May 20, 1926. Teeth, artificial.-A tray for simultaneous. ly taking impressions of the upper and lower gums and teeth and at the same time obtaining the bite, for use in making dentures to replace one or more missing teeth, comprises two longitudinally curved side plates 10 which are divergent upwardly and downwardly and are connected by a slotted cross-bar 12 through which passes a removable celluloid or like flexible parting plate 14. A slotted handle 16, Fig. 6, may be engaged with a projection 18 on the outer side plate 10. In use, plaster, wax, or other plastic material is placed in the upper and lower parts of the tray and the combined impression and bite taken, the cross-bar 12 coming within the space left by a missing tooth. The tray is then placed in an articulator and plaster is introduced to make a cast from each impression and to secure said casts to the articulator. The articulator is opened after the plaster has set and the tray with its impressions is then removed, leaving the casts in correct occlusal position.