baber/WOPTO huggingface dataset:
Patent GB-1404602-A (GB)
Title: Containers
IPC: B65D17/50
Filed: 1972-05-10
Abstract: 1404602 Container end closures J B HOSKISSON 8 May 1973 [10 May 1972] 21945/72 Heading B8T An end closure assembly for a container has firstly a closure member 1 with rolled edges 2 and an opening in a conical raised part 12 and secondly a flanged plug 6. Initial location is provided by the plug waist 9 in contact with the orifice; pressure inside the container then causes flange 10 to seat against face 11. The container is opened by pressing the plug 6 through into the container. Other embodiments show a plug whose flange profile closely matches the inside face of the conical part 12 and also an arrangement where the annular part around the opening is bellmouthed and the plug is close fitting. The assembly may include two plugged openings diametrically opposed.
Patent GB-257962-A (GB)
Title: Improvements in water-craft
IPC: B63B1/36
Filed: 1926-09-07
Abstract: 257,962. Bechem, H. Sept. 7, 1925, [Convention date]. Disc propellers.-The bottom of the vessel is provided with closed hollow bodies c which are mounted on vertical axes and are rotated from anv suitable source of power thus raising the hull so that the boat rests only on the hollow bodies.
Patent GB-905022-A (GB)
Title: Stapling machine
Inventor: SWAIN ROBERT PADDY
IPC: B25C5/16
Filed: 1960-06-23
Abstract: 905,022. Stapling-machines. STANDARD ENGINEERING CO. Ltd. May 5, 1961 [June 23, 1960], No. 22044/60. Addition to 794,494. Class 89 (3). The machine of the parent Specification is modified for driving staples, by replacing the automatic tack-feeder with one for feeding staples. These are blown into a shoot 33 by compressed-air from at least one nozzle 16. From the shoot, the staples fall on to a raceway 34 beneath a keeper 35. Incorrectly aligned staples are removed from the raceway 34 by a pivoted plate 36 operated by compressed-air from a nozzle 22.
Patent GB-1466882-A (GB)
Title: Segmental die
IPC: B21J13/02
Filed: 1974-05-17
Abstract: 1466882 Segmental extrusion die M W FREEMAN 17 May 1974 22098/74 Heading B5A [Also in Division B3] A segmental die for extruding plastics such as nylons, polyolefins, polyethylenes, polypropylenes, polyurethanes, bakelite, and other phenol formaldehyde or related resins, tungsten carbide alloys in powder form or metal (see Division B3) is composed of a set of die segments 2 whose mating faces contact each other along a curved contour which satisfies the formula r=f(#) where r is the polar radius and # the polar angle of the contour. The contour serves to distribute pressure between the segments. The contour shape is selected to provide a predetermined pressure distribution. The pressure may be the same along the whole length of the contour or greater towards the inner face of the die. The contours may be curved clockwise or anticlockwise and the die opening may be circular or polygonal.
Patent GB-390499-A (GB)
Title: Improvements in or relating to valve gear for steam engines
IPC: F01L31/08
Filed: 1931-08-04
Abstract: 390,499. Engine valve-gear. TUBBS, W. H., Windy Wold, Seaview Road, Drayton, Cosham, Hampshire. Aug. 4, 1931, No. 22118. [Class 122 (ii).] In a reversible steam-engine valve-gear, a valve-actuating lever is connected with a pair of levers, one or the other of which is operative according to the direction of motion and pivots about the same axis as the valve-actuating lever while the other lever of the pair rocks idly. Reversal is effected by moving the fulcrumshaft of the valve-actuating lever so as to function as the fulcrum of one or the other of the pair of levers. In the poppet-valve gear for steam locomotives the inlet valves are operated by pairs of rollers o, p which engage oppositely-rotating, relatively-adjustable cams a, b mounted on a shaft c. The exhaust valves are operated by rotary cams fixed on the driven shaft. The cam a is fixed to the enginedriven shaft c ; the cam b rotates relative to the shaft c. The cams a, b have bevel teeth d, e respectively on their opposed faces engaging bevel pinions g on an intermediate worm plate f which is normally stationary but which may be adjusted by a worm carried by a shaft k mounted in the cam-gear casing and engaging teeth on the periphery of the plate f. The rollers o, p are carried on arms q on a spindle r mounted on a lever s pivoted on a pin t, Fig. 3. The lever s is formed with' an intermediate eye u through which passes an axially slidable, reversing rod v grooved peripherally at w, x. A valve-operating tappet lever y is also pivoted on the pin t and is formed with an intermediate eye z and, on the opposite side of the pin t, is pivoted to a pin 11 to which is pivoted a lever 12 formed with an eye 13. The rod v passes through the eyes z, 13 ; the other end of the lever 12 is pivoted to a pin 14 to which is also pivoted a link 15 connected to the spindle r on the other side of the cam discs. In the position shown in Fig. 3, the movement of the lever s rocks the lever y to move the valve. The movement of the lever 13 by the link 15 is ineffective to move the valve since the lever 12 rocks idly about the pin 11, the eye 13 registering with a groove y in the rod v. When the rod is moved axially to bring the groove w into register with the eye u of the lever s, the lever 12 is effective to operate the left-hand lever y to move the valve, and the lever s rocks idly about the pin t. The cut-off is varied by turning the shaft k. The exhaust valve mechanism comprises a pair of cams 16, 17 angularly displaced and keyed to a driving-shaft 18. Rollers 19, 20 on levers 21, 22 engage the cams. The levers 21, 22 are pivoted to valve-operating levers 23 and are provided with eyes which may pivotally engage, or register with recesses in a longitudinally movable shaft 24. Toothed wheels 27 on the shaft 24 engage a wheel 25 whereby they may be rotated and through screw-and-nut mechanism adjusted.
Patent GB-224640-A (GB)
Title: An improvements in hollow walls
IPC: E04B2/02
Filed: 1923-09-03
Abstract: 224,640. Rammage, A. Sept. 3, 1923. Building blocks, special shapes of.-A hollow wall is formed of Z-shaped blocks, Fig. 2, made of concrete or burnt clay, and having the web at right-angles to the flanges and the inner angles curved; the flanges are tongued and grooved to interlock, and are roughened or scored on the faces to key with plaster and rough cast finishing coat.
Patent GB-662598-A (GB)
Title: Improvements in or relating to fluid pressure control devices
IPC: F02M59/00
Filed: 1949-08-26
Abstract: 662,598. Rotary pumps; centrifugal pumps. BENDIX AVIATION CORPORATION. Aug. 26, 1949 [Sept. 10, 1948], No. 22276/49. Classes 110(i) and 110(ii) [Also in Group XXVII] Regulating means to keep the inlet pressure constant, for a rotary, centrifugal, or reciprocating pump 10, comprises a valve 48 whose opening is controlled by a diaphragm 60. The latter is subjected to inlet pressure on its under-side, by way of passages 64, and spring pressure on its upper side. The pump, which may be a gear, reciprocating, centrifugal or another type, may be used to supply fuel for an internal-combustion engine by direct injection or manifold injection. The byepassed fluid passes through a duct 20, ports 40, 42 in a sleeve 44 and so to a chamber 62 open to the inlet port 12 when the valve 48 is open. When the inlet pressure falls, the pressure in a chamber 66 also falls, the diaphragm lowers and the valve 48 opens wider to allow more fluid to pass from duct 20 to duct 22 to raise the pressure there. A vent 78 leads to atmosphere or to a venturi tube in the induction passage of the engine so that, on an increase in air flow to the engine, the pressure in chamber 76 becomes lower, causing the diaphragm to move in a valve-closing direction.
Patent GB-708449-A (GB)
Title: Improvements in or relating to electrodes for photo-electric devices
IPC: H01J40/06
Filed: 1951-09-24
Abstract: 708,449. Light-detecting devices. VOGT, A. Sept. 24, 1951 [Sept. 23, 1950], No. 22327/51. Class 40 (3). [Also in Group XXXVI] In a photo-electric cell, such as a barrier-layer cell, a surface of the metal electrode arranged to face incident light carries a dielectric layer of such thickness and refractive index that for light of a frequency at the middle of the frequency band to be transmitted or utilized, reflection between the air and the dielectric layer and between the dielectric layer and the electrode are arranged to offset one another by interference. The dielectric layer, which may be an oxide of silicon, a metallic fluoride, phosphide or sulphide, may be applied by evaporation, sputtering or chemical deposition, has a thickness of one quarter (or an odd number of quarters) of the wavelength of the middle frequency light and may comprise more than one dielectric material. The electrode may be of gold, silver, copper or a copper alloy.
Patent GB-145311-A (GB)
Title: Improvements in internal combustion engines
IPC: F02F3/00
Filed: 1919-09-11
Abstract: 145,311. Soulis, W. T. Sept. 11, 1919. Pistons for internal-combustion engines are constructed of a shell of pressed metal, such as steel 7, Fig. 1, carrying an external ring 16 of softer metal, such as cast iron, formed with grooves for holding the usual piston-rings and united to the shell by dip-brazing. Gudgeon-pin bearings and strengthening-pieces may be arranged as shown, the whole being united by ore brazing operation. Fig. 9 shows another form of piston with two outer rings 16, 17 and a modified arrangement of strengthening-pieces.
Patent GB-1278476-A (GB)
Title: Method of analysing defects in pneumatic tyres
IPC: G01B9/021
Filed: 1969-05-13
Abstract: 1278476 Testing tyres GEOPTRONICS Inc 13 May 1969 [13 May 1968] 22434/69 Heading B7C [Also in Division G2] Defects are detected in tyres by inflating a tyre 12 to its normal pressure and forming at least one hologram 30 of at least a section of the tyre on a photographic medium using coherent light, and superimposing the reconstituted image on a second image of the same section, or with that tyre section at the end of a given time interval, so that any creep occurring as a result of a defect in the tyre is revealed as interference fringes 32 in the superimposed images. The second image may be from a second hologram superimposed on the first and formed by double exposure separated by the predetermined interval of time. Alternatively a continuous exposure over the period of time may be made to record any creep in the tyre section. If desired the tyre may be heated between the first exposure and the time of forming the second image, or it may be inflated to a pressure higher than normal.
Patent GB-476704-A (GB)
Title: Improvements in or relating to pipe and like clips
IPC: F16L33/04
Filed: 1936-08-15
Abstract: 476,704. Band clips. HILL, S. D. Aug. 15, 1936, No. 22504. [Class 44] A band clip of the kind in which the ends of the band overlap and the tightening means operates under thrust comprises a band 5 which, as shown, has a central bead slotted to leave a series of abutments 6 as described in Specification 439,140, a tightening screw 13 pivotally mounted by a member 10 on trunnions between cheeks 9 at the extremity of the outer overlapping end of the band, and a member 14 operable by the screw and having a claw-portion 15 adapted to be selectively engaged with one of the abutments 6, on the inner end of the band. The band is slotted from its outer end for a distance sufficient to allow the upraised abutments 6 to pass therethrough for engagement by claw 15. Alternatively, the band may have a series of perforations providing abutments. In another arrangement the inner end of the band may be wider than the outer end and abutments may be provided along its edges, which may have flanges turned over to embrace the outer end. The cheeks 9 are shown as integral with the band, but they may be provided by a separate U-shaped member, the limbs of which are passed up through slots near the end of the band.
Patent GB-303037-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/40
Filed: 1927-08-26
Abstract: 303,037. Smith, W. S., and McLachlan, N. W. Aug. 26, 1927. Vacuum tubes.-In a thermionic valve having an indirectly-heated cathode, interference by electrostatic effects produced by the heating current is prevented by an electrostatic shield pervious to heat, extending between the heater and the cathode, the shield preferably extending beyond the active portions of the cathode and the heater. In the form shown in Fig. 1, the valve includes an internal heating coil 3 wound on an insulating tube 8, an electrostatic shield 6 in the form of an open mesh tube into which the flanged ends of the tube 8 fit, a tubular cathode 2 mounted on insulating rings 9, a coilec wire control grid 4, and a tubular anode 5. These members are concentrically arranged and are stemmed to the valve footstep 7 by supports 2<a> - - 6<a>. In use, the shield is earthed, and a screening grid may be provided between the control grid and the anode and connected to some point of fixed potential, such as a point in the anode battery. In the form shown in Fig. 2, a disc of open wire mesh forming a screening grid 10 is carried by a ring 10<b> and is situated between the disc anode 5 and the control grid 4 formed of a single wire bent backwards between a forked supporting and connecting member 4<a> stemmed to the footstep 7 of the valve; the ring 10<b> in part encloses the anode which, with the part 10, is stemmed to a supplementary footstep 7<1>. The cathode is constituted by a metal plate 2 bent over at the edges to retain a similarly shaped insulating-disc 11 carrying a shield 6 for the heater. Within the shield 6 is carried a flat heating coil 3 enclosed between insulating discs 12, 13. The parts 6, 11, 12 are perforated to facilitate the passage of heat. In the form shown in Fig. 1, the connection to the anode may be brought through the top of the valve casing. In a valve containing a control grid and a screening grid, the connection to the screening grid is taken through the valve envelope at the same end as the anode connection and remote from the grid control connection. In a further modification, the shield is formed of a perforated metal shell, split longitudinally and coated, for example, with platinum black, the shell being insulated from its supports and earthed by a wire led through the side of the valve envelope.
Patent GB-189505-A (GB)
Title: Improvements in apparatus for stereotype plate finishing and cooling
IPC: B41D1/00
Filed: 1921-08-24
Abstract: 189,505. Hoe & Co., Ltd., R., (Hoe & Co., R.). Aug. 24, 1921. Stereotype, cooling and finishing. Relates to stereotype plate finishing and cooling machines of the type in which the plates are cooled while supported within a finishing cylinder and before the finishing operation is performed, and consists chiefly in effecting the contact between the plate and the cooling medium at a point below the level of the finishing cutters. The plate may be dried before being finished and the head of the plate .is preferably removed before the cooling operation. As shown. the hot plate is placed on a stand 5 from which it is fed into a combined cooling and finishing cylinder 10 by a spring pawl 53 carried by a reciprocating rack bar 51, a second pawl 53 simultaneously feeding a finished plate from the cylinder on to a delivery stand. The rotary cylinder 10 is adapted to contain two plates at one time and is provided with side platesupporting bars 13, 14 which are cut away at one point to accommodate plate-clamping tongues 15 carried by members 17 slidable circumferentially on the cylinder and normally pressed by springs 18, Fig. 8, into clamping position. The cylinder is stopped at each half revolution for the removal and insertion of a plate, and the plate is automatically unlocked by a bevelled spring pin 25 mounted in a lever 21 pivoted at 23, and carrying a roller 27 engaging a constantly rotating grooved cam 28 on a shaft 29. As the cylinder rotates, a projection 20 on the member 17 presses back the pin 25 which then snaps behind the projection 20 and by the shaping of the cam 28 presses the member 17 forward against the action of the spring 18 to release the plate. The cylinder 10 is driven by a constantly rotating pinion 33 engaging segment gears 34, 35 between which are gaps 36 allowing the cylinder to remain at rest. Re-engagement of the gears 34, 35 with the pinion 33 is effected by short racks 38 on the cylinder engaging with a pinion 39 meshing with sliding rack 40 connected to a pivoted arm 43 carrying a roller 46 engaging a cam groove 47 on the shaft 29. The cam groove 47 is so shaped as to hold the rack 40 stationary while the plate feed-bar 51 makes a feed stroke, and then to move the rack 40 sufficiently to bring the segment gear into mesh with the pinion 33. Motion is imparted to the feed-bar 51 by gears 58, 60 and a rack 61 reciprocated by a link 64 from a crank disc 65 on the shaft 29. A tail-severing cutter 67 is driven by a belt 69 from the main shaft 66 and the severed tail falls down a shoot. The plate is cooled while in the lower part of the cylinder by water supplied through pipes 72, 73, 74, Fig. 5, and as the cylinder rotates, the plate is carried past a perforated pipe 78 from which air is directed ou to the plate to dry it, and then past the shaving knife 79. The shavings are kept dry by falling into a tray 81 from which they are removed by a scraper 83<1> carried by a slidable bar moved in one direction by a projection on the bar 51 and in the opposite direction by a spring.
Patent GB-153421-A (GB)
Title: Improvements in and connected with electric incandescent lamps
IPC: H01K1/62
Filed: 1919-09-13
Abstract: 153,421. Calvert, G. Sept. 13, 1919. Filaments; caps.-In a metal-filament vacuum lamp, a magnetic fiux is produced in the neighbourhood of the filament to prevent scattering. The flux may be produced by one or more permanent magnets or by a coil in series or parallel with the filament. In the lamp shown, a coil 5 is connected to one end of the filament and to one of the lamp contacts through a hole 9 in the cap. The flux produced is parallel to the filament; no flux is necessary at the bends, the filament being cooled there by the supports. There is preferably no iron in the magnetic circuit; when alternating current is used the current in the coil should be in phase with that in the filament,
Patent GB-1260539-A (GB)
Title: Improvements relating to catalysts, their preparation and their use
Inventor: BURBIDGE BERNARD WHITING
IPC: C07C5/32
Filed: 1969-05-05
Abstract: 1,260,539. Apatite/metal catalyst. BRITISH PETROLEUM CO. Ltd. 17 March, 1970 [5 May, 1969], No. 22777/69. Heading B1E. [Also in Division C5] A catalyst composition comprises apatite Ca 10-x  H 2x  (PO 4 ) 6  (Y) 2 , wherein x=O-2, Y is OH, F or Cl, containing in addition a metal, other than calcium or cobalt, present in ionexchange form, suitably in a quantity of 0.01 to 20% wt. Preferred metals are Group II or Group III metals and/or Group VIII or Group VIa metals. Specified metals are silver, magnesium, aluminium, rare earths, tin, lead, vanadium, arsenic, antimony, bismuth, chromium, molybdenum, tungsten, rhenium, iron, nickel, platinum, palladium, rhodium, iridium and osmium. The composition is preferably prepared by contacting an apatite having a ca/P atomic ratio of 1.75 to 1.30 with a solution of the metal ions, washing to remove any chemically uncombined ions, drying, calcining and reducing.
Patent GB-1481809-A (GB)
Title: Cepham derivatives and preparation thereof
IPC: A61P31/04
Filed: 1974-10-14
Abstract: 1481809 Cephem derivatives PFIZER Inc 14 Oct 1974 [17 Oct 1973] 22872/76 Divided out of 1481807 Heading C2C The invention comprises compounds of the formula and salts thereof, wherein T is a tetrazolyl group which is either wherein R is H or 2,2,2-trichloro- or -bromoethoxycarbonyl, benzyloxycarbonyl or wherein R 3 , R 4  and R 5  are H, Cl, Br, F, CH 3 , CH 3 0 or phenyl; A is H, CH 3 COO, 1-methyl-5 tetrazolylthio or 2-methyl-1,3,4.thiadiazolyl-5- thio; R 1  is H, (C 3 -C 6 )alkanoyloxymethyl, 1-[(C 4 -C 7 )alkanoyloxy]ethyl, methoxymethyl or phthalidyl; and R 11  is the same as R 1  or is selected from groups of the formulµ and wherein R 6  is (C 1 -C 3 )alkyl or phenyl, R 7  is OH, CH 3 0, (C 2 -C 4 ) alkanoyloxy or benzyloxy, R 8  is H, OH, F, Cl, Br, I, CH 3 , CH 3 0, (C 2 -C 4 ). alkanoyloxy, phenyl or benzyloxy, R 9  and R 10  are each H or CH 3  and X is O or S. They may be obtained by reacting a compound of Formula I above except that T is replaced by -CONHR 2  wherein R 2  is selected from groups of Formulµ III and IV above, with a chlorinating agent to produce an imino chloride followed by reaction with an azide to form a tetrazolyl group; optionally replacing the R 2  group by treatment with a mixture of CF 3 COOH and anisole. Compounds in which R 1  or R 11  is other than H may be obtained by alkylating a compound in which R 1  or R 11  is H with a compound of formula to form a compound wherein R 1  is other than H. Compounds in which A is other than hydrogen may be obtained by brominating compounds in which A is H with N-bromosuccinimide and reacting the resulting 3-bromomethyl compound without isolation with an acetate salt or an appropriate mercaptan. Compounds in which R is H are obtained from (a) compounds in which R is the 2,2,2-trihaloethoxycarbonyl group by treatment with Zn dust and acetic acid, (b) compounds in which R is the triphenylmethyl group by treatment with HCOOH, and (c) compounds in which R is benzyloxycarbonyl group by treatment with a mixture of CF 3 COOH/anisole and CF 3 S0 3 H. The products are intermediates useful in the preparation of antibacterial agents.
Patent GB-626597-A (GB)
Title: Packaging
IPC: B65B25/04
Filed: 1947-08-18
Abstract: 626,597. Packing. WINGFOOT CORPORATION. Aug. 18, 1947, No. 22911. Convention date, Aug. 27, 1946. [Class 94(i)] In a process of packaging soft fruits or similar articles, the article 23 is placed between two layers 24, 25 of wrapping material, a frame 22 placed against the outside surface of one layer and the assembly passed between resilient pressure means to press the layers of wrapping, material together around the article and to press at least a portion of the covered article into the frame. The wrapping material which is preferably thermostretchable and heat sealable e.g. rubber hydrochloride film is heated by means of hot rolls 8, 9 and passed between two sponge rubber belts 20, 21 together with single or multiple compartment frames 22. The upper edges of the frame are coated with material to which the film adheres and similar frames 26 placed on top and secured by adhesion to the film or by tapes or rubber bands. The articles are thus resiliently supported by the film and protected by the frames which may be in the form of boxes of wood, boxboard or plastic. The amount of stretching of the two films and therefore their point of union may be varied by heating the lower film more than the upper, by making it thinner or of a different composition or by plasticizing it.