baber/WOPTO huggingface dataset:
Patent GB-818581-A (GB)
Title: Coverings and roofs for flues, particularly boiler flues
IPC: E04C3/29
Filed: 1954-07-29
Abstract: 818,581. Horizontal flues. EDWARDE, L. F. Oct. 28, 1955 [July 29, 1954], No. 22181/54. Class 25 A horizontal flue roof comprises a plurality of contiguous prefabricated composite beam units spanning the flue 4, Fig. 1, and resting upon the side walls 5. The unit shown in Figs. 1, 4, comprises a reinforced concrete part 1 bonded through the members 8 to a heat-insulating part 7 of reinforced exfoliated vermiculite concrete, whilst the unit of Figs. 2, 4, has its parts, 1a, 7a, connected by nuts and bolts 8c, 8a. Both units have a flanged portion 9 and a recessed portion 10 so that in constructing a roof of either unit gas-tightness is ensured by asbestos joints 11, 12, secured to the units by pinning and giving to the horizontal faces 14, 14a, a wash of refractory material. A roof of either unit is bedded on the walls 5 on a crushed clinker and lime mix 13. The spaces 16, Fig. 2, are filled with asbestos yarn and the unit parts 7, 7a, may be made up of several pieces.
Patent GB-650854-A (GB)
Title: Improvements in panel shaping and veneering presses
IPC: B27D1/08
Filed: 1948-08-23
Abstract: 650,854. Panel shaping pressss. SCHUBERT, H. Aug. 23, 1948, No. 22219. [Classes 145(i) and 145(ii)] [Also in Group VIII] A panel shaping and veneering press, of the type comprising a work-supporting table and a dome covering the " blanket ", has the longitudinal margins of the table each provided with a number of stout hooks arranged in pairs backto-back and pivoted on axes at rightangles to the longitudinal axis of the press, the hooks of each pair being interconnected at their ends by toggle links actuated by a cam to swing the hooks into and out of engagement with rollers on the longitudinal margins of the dome. A bracket 18 secured to the work table 13 carries on its lower horizontal limb 19 pairs of hook brackets, one such pair being shown at 20, 21. Each bracket is bifurcated and carries between its arms a'pivoted hook 26, 27 each having an insert bearing strip 37, 38. The hooks :are pivoted at 29, 30 to complementary corners of segmental links 31 and 32, the opposite corners of which are pivoted at 33 to a hydraulic or pneumatic ram 35. An upper bracket 41 attached to the dome carries pairs of depending roller brackets 43, 44, each of which is bifurcated and carries an eccentric roller 39, 40 mounted on a shaft 48 bushed in the bracket. Each shaft carries, on a stub 53, a quadrant plate 54 having a number of holes 55. The holes 55 are alined with holes 52 in an enlarged arcuate-like portion 51 of the brackets 43, 44 by a pin 56. The two sets of holes may have a different pitch to give a fine degree of adjustment. In operation, the hooks 26, 27 are caused to engage the rollers 39, 40 by the admission of fluid to the cylinder 36, the arcuate periphery of each segmented link remaining in rolling contact with the associated hook or roller bracket and so preventing bending of the ram 35. The roller may be turned to take up wear or when a new "blanket" is inserted.
Patent GB-1341296-A (GB)
Title: Stability of hydrocracked lubricating oils to air and light
IPC: C10G67/04
Filed: 1971-04-19
Abstract: 1341296 Lubricating oils ESSO RESEARCH & ENG CO 19 April 1971 [16 March 1970] 22222/71 Heading C5E Lubricating oil is made by subjecting a distillate hydrocarbon fraction or a deasphalted residuum to catalytic hydrocracking, separating a lubricating oil fraction boiling above 650‹ F. from the hydrocracked effluent, and extracting this fraction with N-methyl-2-pyrrolidone to produce a raffinate which is resistant to deterioration upon exposure to light and air. In the example a blend of deasphalted oil and heavy vacuum gas oil is hydrocracked at 780‹ F. and 2500 p.s.i.g. using a catalyst of nickel and molybdenum on a silica-alumina support and separated to provide a SAE 10 lube oil distillate which is then dewaxed and extracted 5 times with N-methyl-2-pyrrolidone; as a comparison using aqueous phenol.
Patent GB-1537443-A (GB)
Title: Manhole covers
IPC: E02D29/14
Filed: 1977-05-26
Abstract: 1537443 Manhole covers A N S KULASINGHE 26 May 1977 22238/77 Heading E1G A manhole cover comprises an edge support frame 2 a membrane 1 of e.g. glass reinforced plastics or metal closing the area defined by the support frame and secured along its edge frame to form a lower convex surface in the shape of a Prandtl shell and filling material 3 filling the space between the membrane and an upper plate member 4 co-planar with the upper surface of the edge frame. The filling material may be of concrete, sand or a liquid. If the filling material is concrete the plate member 4 may be omitted.
Patent GB-883339-A (GB)
Title: Means for providing intimate contact between a surface and tape in tape recorder devices and the like
Filed: 1958-07-11
Abstract: 883,339. Magnetic recording apparatus. SPEIDEL CORPORATION. July 11, 1958 [Aug. 16, 1957], No. 22281/58. Class 40 (2). A capstan 82 for driving magnetic tape immersed in a fluid of equal density as in the magnetic recorder of Specification 855,089, has a rigid profile as in Fig. 12, or a resilient profile 84, sliced at intervals 85 so that in the region of operative contact with the tension roller 46 and the guide roller 56, the profile is distorted as at 85b into the same effectively saw-tooth profile as at 101. Fluid-pressure gradients are set up so that the tape is forced into driven contact with the capstan, the fluid between being squeezed out. Similar arrangements can be used to e.g. maintain contact between the tape and recording heads having an appropriately serrated guide surface.
Patent GB-963189-A (GB)
Title: Improvements in or relating to paper machines
IPC: D21F7/00
Filed: 1963-06-05
Abstract: 963,189. Paper-making apparatus. DOMINION ENGINEERING WORKS Ltd. June 5, 1963 [Aug. 16,1962], No. 22392/63. Heading D2A. A Fourdrinier paper machine has transverse supporting beams 15 supported at one end of fulcrum pad means 16 and at the other end by stools 19, a clearance being provided between each stool and beam when swing bolts 21 are released so that stools 19 can be removed to change the wire.
Patent GB-1286227-A (GB)
Title: Device for monitoring a current flowing through the primary winding of a current transformer
IPC: H02H3/08
Filed: 1971-04-19
Abstract: 1286227 Protective arrangement HARTMANN & BRAUN AG 19 April 1971 [2 March 1970] 22418/71 Heading H2K In an arrangement responsive to current flowing through the primary windings of current transformers W1 ... W3, a bridge rectifier 4 is connected to the secondary windings and energizes a coil 8 in the magnetic field of which there is a magnetic-field-responsive resistor 9. This resistor is connected in series with a constant. current source 11 and a trigger circuit 10 is connected for energization by the difference between the voltage drop across the resistor 9 and that established at a tapping 15 of a potential divider 12, 13 connected across a battery (not shown). When the current in the A.C. circuit R, S, T reaches a predetermined level, the resistance of the resistor 9 is changed sufficiently to cause the circuit 10 to change its state, e.g. to energize a relay (not shown) to effect an indicating or tripping action.
Patent GB-222644-A (GB)
Title: Improvements connected with milk churns and cans
IPC: B67D7/60
Filed: 1924-06-06
Abstract: 222,644. Udall, W. June 6, 1924. Cans; partitions; strainers and filters.- A milk churn or can is divided into two portions by a preferably removable plate 5 through which the upper part of a detachable pump 6 passes, the milk being introduced into the lower compartment through a gauze-covered opening 11 provided with a hinged cover 10. Drainage from the pump can return to the milk compartment through a gauze-covered opening 9. The upper compartment is adapted to hold the milk measures.
Patent GB-947113-A (GB)
Title: A process for the preparation of vinyl chloride polymers and copolymers
IPC: C08F26/12
Filed: 1961-06-21
Abstract: 947,113. Polymerizing vinyl chloride. COMPAGNIE DE SAINT-GOBAIN. June 21, 1961 [June 23, 1960], No. 22500/61. Heading C3P. Vinyl chloride polymers are made by polymerizing vinyl chloride alone, or in admixture with another ethynically unsaturated monomer, in the presence of an ammoniacal complex of a trialkyl boron of the formula [R3#B:#NH3] where R represents an alkyl radical. The other monomer may be vinyl acetate, hexyl acrylate, alkyl chloride, ethylene propylene, or monochlorotrifluoroethylene. The boron compound may be trimethyl or triethyl-boronmonoamine. The polymerization may be effected in bulk, organic solvent solution, or aqueous media.
Patent GB-1010176-A (GB)
Title: A rotary mower
IPC: A01D43/10
Filed: 1962-06-12
Abstract: 1,010,176. Mowing machines. B. C. MATTHEWS. Aug. 2, 1962 [June 12, 1962], No. 22512/62. Heading A1F. A rotary mower comprises blades 27 rotating about a horizontal axis within a casing having a front wall 19 pivoted about the axis 20 whereby the distance between the front wall and the path of the blades may be adjusted so that after the initial cutting the crop is further engaged by the blades but is not chopped. The front wall is made in two parts 30, 31 adjustably secured together by bolts 32 and the lower part 31 carries a crop deflecting roller 40. The blades are pivotally supported on the rotors in diametrically opposed pairs, adjacent pairs being offset through 90 degrees. Baffles 42, 44 guide the cut crop into a windrow.
Patent GB-751736-A (GB)
Title: Improved container for beer or other aerated beverage
Inventor: ANDERSON WILLIAM JOHN
IPC: B65D88/54
Filed: 1953-08-18
Abstract: 751,736. Tanks. DALZELL ELECTRIC WELDING CO., Ltd. Sept. 3, 1954 [Aug. 18, 1953], No. 22705/53. Class 69 (1). A container 1 for beer &c. adapted to be permanently installed in an underground cellar from which the beer is pumped for consumption comprises a thin metal shell 2 lined with corrosion-resistant metal at 3 and provided with a supply inlet 13 by which the container can be filled from motor tanker vehicles and which is normally closed by a, cap 16, a draw-off outlet 18 at the bottom, an air inlet fitting 11 at the top, a quantity indicator 21 and a cleaning opening 19 normally closed by a manhole door 20. A pressure gauge and a pressure relief valve 12 may also be fitted, and a size of 108 gallons is described as advantageous.
Patent GB-204481-A (GB)
Title: Improvements in or connected with flexible diaphragm and similar fluid tight packings or closures for the joints or spaces between relatively moving parts
IPC: F16L27/06
Filed: 1922-08-21
Abstract: 204,481. Tarrant, W. G., and Peress, J. S, Aug. 21, 1922. Fluid - seal joints; swivelling joints.-An improvement in the diaphragm packings f for the parts e, d of a spherical joint for a diving dress &c. of the type described in Specification 166,596, consists in forming grooves or corrugations in the surfaces of smaller diameter, in order to accommodate the surplus material of the diaphragms as they roll from the larger surfaces to the smaller surfaces.
Patent GB-1420875-A (GB)
Title: Gas burner
IPC: F24H9/18
Filed: 1973-08-14
Abstract: 1420875 Air heating apparatus; gas burners AMERICAN AIR FILTER CO Inc 14 Aug 1973 [8 Nov 1972] 22780/75 Divided out of 1420874 Headings F4S and F4T The Specification relates to a gas-fired air heating furnace as described in Specification 1,420,874, but the claims are directed to the gas burner assembly. The assembly comprises a housing 21 defining a combustion air plenum 5 with an air inlet 22 and a fuel gas inlet 23 and enclosing a cylindrical burner chamber 25 of serrated cross-section configuration. Each serration defines a V-shaped pocket to which fuel gas is supplied through apertures 33 in a ring manifold 24 axially aligned with apertures in an end plate 26 and combustion air is supplied through apertures 27 in the flanks of the pockets transversely to the flow of fuel gas. A flexible expansion head 19 is positioned between a burner tube 9 and a corrugated collar 13 to relieve expansion and contraction of the tube 9 and the collar 13 is secured to the burner assembly by bolts 36 passing through apertures 38, 34, 37 respectively in a flange 18 on the inlet to the collar, a tube sheet 14 and burner mounting plate 30 of the assembly.
Patent GB-731546-A (GB)
Title: Improvements in loading machines
Inventor: BERRY JOHN
IPC: B65G65/14
Filed: 1952-09-11
Abstract: 731,546. Jigging conveyers. DISTINGTON ENGINEERING CO., Ltd. Sept. 7, 1953 [Sept. 11, 1952], No. 22830/52. Class 78 (1). A machine for loading coal or other loose material comprises in combination a shaker conveyer 1, Figs. 1 and 2, which includes a shovel 4 and drive mechanism 2 therefor and for steerable propelling means 3, the conveyer being arranged wholly in front of the drive mechanism and being adapted to discharge material through a curved trough 5 at a height less than that of the drive mechanism. The shovel and trough are mounted on a vertical pivot pin 6, Fig. 7, carried by a frarne 7 which is slidable longitudinally of the machine on ball bearings 8 carried by a skid. plate 9. A pin 12, Fig. 9, fixed to the shovel 4, is rotatably mounted in a carriage 13 which travels in guides 14. These guides are secured to a shoe 15, Fig. 8, which is slidable in lateral guides 16 mounted on the skid. The shoe 15 is connected by a link 18, Fig. 3, and a bell-crank lever 19 to the piston rod of a double-acting hydraulic cylinder 17. The frame 7 is pivotally connected to one end of a rod 11, the other end of which is pivotally connected to a lever 32. This lever is connected by a rocker arm 31, coupling rod 30, bell-crank lever 29 and connecting rod 28 to a crank-shaft 27, Fig. 5. The crank-shaft is driven through spur gearing by a shaft 24 which is driven by an electric motor 23. The shaft 24 drives a hydraulic pump 25 which supplies fluid to the cylinder 17 and to two variable speed motors 26 which drive the endless tracks 3. The upper end of the lever 32 is connected by a link 35 to a shaft 36, the ends of which engage balance weights 33 slidably mounted on guides 34.
Patent GB-1457863-A (GB)
Title: Method of manufacturing semiconductor devices
IPC: H01L23/522
Filed: 1974-05-22
Abstract: 1457863 Semiconductor devices HITACHI Ltd 22 May 1974 [12 Oct 1973] 22943/74 Heading H1K A structure comprising an IGFET and a diffused conductive track is formed in a semiconductor substrate by first using a conventional genetic oxide masked diffusion to provide the track, reoxidising to provide an overall oxide layer, forming one aperture over the track smaller than that used in its formation by masked diffusion and another over an area separated therefrom, forming a thinner oxide layer within the apertures, depositing polysilicon overall and patterning it to provide conductive tracks on the thick oxide, and a gate electrode on the thin oxide at the separated area, which electrode is used as a mask in diffusion of source and drain regions. After depositing phosphosilicate glass 15 (Fig. 1f) to cover the apertures, oxide 5, and polysilicon tracks 11, apertures 15a are opened through this to expose the diffused track 3 and source and drain regions 13, 14 in the apertures for contacting by aluminium metallisation 16.
Patent GB-533301-A (GB)
Title: Improvements in or relating to magnetic deflecting systems for cathode ray tubes
IPC: H01J29/76
Filed: 1939-08-09
Abstract: 533,301. Cathode-ray tubes ; television. STANDARD TELEPHONES & CABLES, Ltd., and SMYTH, C. N. Aug. 9, 1939, No. 22979. [Classes 39 (i) and 40 (iii)] A pair of deflecting coils L1, L2, Fig. 2, for a cathode-ray tube intended for example for television receivers is fed in parallel for deflecting the ray in one direction and in series for deflecting the ray in the other direction, at right angles to the first. The feeding circuit may be as shown in Fig. 6, line scanning and frame scanning controls being fed through separate transformers T1, T2 one supplying the coils L1, L2 in parallel and the other in series. Alternatively the coils may be connected to a pair of valves operating in parallel for one control and in push-pull for the other.
Patent GB-277011-A (GB)
Title: Improvements in coal dressing apparatus
IPC: B03B4/02
Filed: 1927-09-01
Abstract: 277,011. Wolinski, K. Sept. 1, 1926, [Convention date]. Pneumatic separating; separating by shaking- apparatus.-Apparatus for treating the fine residue from a coal washing plant so as to separate out the coal comprises a perforated table 1 on to which the materials are fed from a hopper 18 and which is irregularly reciprocated while air is supplied from below. The table is stepped in the direction of movement and is provided with longitudinal bars 4 converging to a central channel 11 in which the dirt is collected, the clean coal being collected at the sides of the table. Deflectors 7 are pivoted at the delivery end of each section to control the amount of dirt passing to the next. The outer sides of the table are made adjustable, and the admission of air to each section may be independently controlled. The Specification as open to inspection under Sect. 91 (3) (a) states that the air is used to dry the material under treatment. This subjectmatter does not appear in the Specification as accepted.
Patent GB-720284-A (GB)
Title: Improvements in and relating to the production of colour photographic images
Inventor: JENNEN JACOB JOSEPH
IPC: G03C7/32
Filed: 1951-10-03
Abstract: 1 : 3-Diacetyl indazolone is prepared by refluxing indazolone and acetic anhydride.  According to the literature, 1 : 2-diacetyl indazolone is obtained.  1 : 3-Diacetyl-4 : 6-dimethyl-5-azaindazolone is similarly prepared.  2 : 3-Dibenzoyl indazolone is prepared by adding benzoyl chloride to indazolone in pyridine and boiling.  According to the literature, the 1 : 2-derivative is obtained.  On boiling 1 : 3-diacetyl indazolone with water, 2-acetyl indazolone (1-acetyl indazolone according to the literature) is obtained and this is converted into 1-acetyl indazolone by melting at 220 DEG  C. for 30 minutes.  2-Propionyl indazolone is prepared by refluxing indazolone and propionyl chloride in benzene. 2-(N-Pyridinium acetyl indazolone) - chloride is obtained by heating 2-chloroacetyl indazolone (see below) and pyridine. 2-Acetyl-4 : 6-dimethyl-5-azaindazolone is prepared by refluxing 4 : 5-dimethyl-5-azaindazolone in benzene with acetyl chloride.  2 - Benzoyl - 1 - acetyl indazolone is prepared by heating o-(beta-benzoyl hydrazino)-benzoic acid in acetic anhydride. Di-(2-carbonyl indazolonyl)-methane is prepared by heating malonyl chloride and indazolone in benzene.  2-Chloroacetyl indazolone is obtained by refluxing chloroacetyl chloride and indazolone in benzene, and 21-chloroquinolyl-41-carbonyl-2-indazolone is obtained similarly from 2-chloroquinoline-4-carboxylic acid chloride.  1 : 3 - Diacetyl - 7 - octadecenyl succinyl amino indazolone is prepared by boiling 7-octadecenyl succinyl amino indazolone with acetic anhydride.  1 : 3-Diacetyl-5-octadecenyl succinyl amino indazolone, and 1 : 3-diacetyl-5-stearoyl amino indazolone are similarly prepared.  1-Acetyl-7-octadecenyl succinyl amino indazolone and 1-acetyl-5-octadecenyl succinyl amino indazolone are prepared by treating the corresponding 1 : 3 - diacetyl compounds with aqueous caustic soda, leaving to stand overnight, filtering and neutralizing the filtrate with aqueous acetic acid. 2-Propionyl-6-octadecenyl-succinyl-amino indazolone is prepared by refluxing 6-octadecenyl-succinyl-amino indazolone with propionyl chloride in benzene.  1-Stearoyl-4-stearoylamino indazolone is prepared by refluxing 4-amino indazolone with stearoyl chloride in pyridine.  Specification 685,061 also is referred to.
Patent GB-531997-A (GB)
Title: Improvements relating to constant pressure gas turbines
IPC: F02C3/36
Filed: 1939-08-10
Abstract: 531,997. Gas turbines; air compressors and blowers. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 10, 1939, No. 23143. Convention date, Aug. 16, 1938. [Classes 110 (i) and 110 (iii)] A constant pressure gas turbine drives a compressor which supplies air to an external user, such as a forge, blast furnace or converter, and also to the combustion chamber of the turbine. Various methods of regulation are described. A compressor 2, Fig. 3, delivers air to a combustion chamber 5 by a pipe A and to an external 'user by a pipe B, A flow meter 7 responsive to the flow of air to the user and acting in opposition to a flow meter 7a measuring the flow of fuel gas from a pump 6 varies the supply of fuel gas to the turbine by controlling a byepass valve 9. When the fuel gas pump is driven by a separate gas turbine, an inlet throttle on that turbine may be controlled by the meter 7. Or, the starting motor 3 may drive the fuel pump and the meter 7 may control the speed of the motor. In Fig. 7, a throttle 14 in the supply to the fuel pump 6 is con'trolled by the meter 7 and also by an emergency speed governor 17. If the user's demands, in limiting the supply of air to the combustion chamber, cause an undue rise in the turbine temperature a device 15 operates a throttle valve 16 in the pipe B. The turbine exhaust may be used to preheat either the whole of the compressed air or only that part supplied to the combustion chamber.
Patent GB-1504074-A (GB)
Title: Hydraulically operated grab
IPC: B66C3/14
Filed: 1976-06-04
Abstract: 1504074 Hydraulically operated grabs H GOTZEN [trading as GOTZEN MASCHINENBAU] 4 June 1976 [6 June 1975] 23151/76 Heading B8H An hydraulically operated grab comprises a distributer head 3 connected via a rotary head 2 to a suspension ring 1, a plurality of claws 5 pivotally mounted on the distributer head and corresponding double acting hydraulic actuators 6 rigid with the distributer and connected via shackles 7 to the claws. Fluid for the actuators is supplied via an annular channel 8 in the distributer head and ducts 10, 11 in the cylinders of the actuators to the outer end of the actuators and via a chamber (12), Fig 3 (not shown), in the distributer head and ducts 13 in the actuators to the inner end of the actuators. The channel 8 and the chamber 12 communicate via ducts (18), Fig. 5 (not shown), in a hydraulically rotatable shaft (15) in the rotary head with ducts (20) connected with inlets (21), Fig. 7 (not shown).
Patent GB-1339167-A (GB)
Title: Optical monitoring apparatus
IPC: G03B27/72
Filed: 1971-04-19
Abstract: 1339167 Photographic apparatus EASTMAN KODAK CO 19 April 1971 [9 March 1970] 23156/71 Heading G2A Optical spot monitoring apparatus used in a photographic projection printer comprises an objective 18 which forms an image of a transparency 12 to be copied at a primary image plane, in which plane a mirror 21 is substantially located. The mirror has a transparent portion 22 which allows light from a first portion of the image to reach a photo-cell 24 which regulates a circuit 25 used to control exposure parameters of the printer, while light from the rest of the image is reflected on to an end 40 of a fibre optic bundle 41, and passed therethrough to an end 42 where it is enlarged. Thus a viewer sees the transparency to be printed with a dark spot appearing on the area being monitored, i.e. the area corresponding to the first portion of the image. The position of the photo-cell 24 and its associated equipment is adjusted until the monitored spot coincides with the principal subject of the film image, which subject thus determines the exposure control and colour balance.