baber/WOPTO huggingface dataset:
Patent GB-624506-A (GB)
Title: Improvements in or relating to window construction
IPC: E06B3/44
Filed: 1946-07-09
Abstract: 624,506. Windows, ventilators. GENERAL BRONZE CORPORATION. July 9, 1946, No. 20458. Convention date, July 10, 1945. [Classes 20(iii) and 137] A window comprises a slidable main sash C with a hopper sash D pivoted adjacent the lower rail 11 thereof, and weather sealing means between the rails of the two sashes including a resilient weather strip carried by the rail of one sash and located between the two sashes, a projection on the rail of the second sash engageable with the strip, and a flange carried by one of the rails and engageable with the other on the outside of the weather strip. As shown the resilient strips 34, 40, 37 are carried respectively by the upper, lower, and side rails of the hopper, and contact projections 33a, 39a, 36a on the corresponding rails of the sash C, and in the closed position the rails of the two sashes make contact at 32 33, 38 39, 35 36. Resilient metallic weather stripping is also arranged between the sliding sashes B, C and the fixed frame A, and between the rails 6 and 10 of the sashes B, C, and flanges 22 24 on the rail 10 of sash C contact the flanges 23 25 on the rail 6 of sash B to seal the joint between the sashes. The gutter 27<SP>1</SP> in the top rail 27 of the hopper is open at both ends and entraps and discharges any water blown between the members 14, 27. The frames are preferably of light metal, and the glazing held by sealing material 18 and resilient members 19. A high sill portion 41 may be provided so that the lower sash may be raised as in Fig. 5 to provide ventilation between the sashes only as shown by the arrows. The ventilation is controlled by opening sash B and/or sash C and adjusting the hopper D in any of these positions.
Patent GB-404371-A (GB)
Title: Improvements in or relating to change trays
IPC: G07D9/02
Filed: 1932-07-20
Abstract: 404,371. Coin trays; advertising. GAUNT, C. F., Warstone Parade Works, Birmingham. July 20, 1932, No. 20475. [Classes 3 (ii) and 116.] A coin tray is formed of an outer shell 4 of relatively light-gauge sheet material supported by a closely-fitting inner shell 8 of heavier sheet metal. Both shells are flanged and dished at the centre and the flange 7 of the outer shell is turned inwardly at 12 to support a relatively heavy base-plate 13 which may be supplemented by weights or lead shot enclosed in the space between the plate 13 and the shell 8. The outer shell is cut away preferably in the annular portion as at 14, in the form of a stencil to provide an advertisement, and the exposed portions of the inner shell are coloured or provided with reflecting surfaces. The outer shell may be of thin sheet metal plated with chromium or of celluloid or of a synthetic resin compound.
Patent GB-638087-A (GB)
Title: Improvements in or relating to catalytic synthesis of hydrocarbons
IPC: C07C1/04
Filed: 1947-07-29
Abstract: Hydrocarbons are produced by passing a mixture of carbon monoxide and hydrogen in a ratio between 1 : 1 and 1 : 2, preheated to synthesis temperature, into a bed of synthesis catalyst with the addition of sufficient water to absorb the reaction heat by evaporation.  A slight excess of liquid water should be present.  With iron catalysts, a temperature of about 240 DEG  C. and partial pressure of synthesis gas of 20-30 atmos. is used; with cobalt, about 200 DEG  C. and 10-15 atmos.  Part of the reaction product is recycled to preheat the synthesis gas to at least 212 DEG  C., and to give a total pressure of 40-50 atmos. with iron catalysts.  Water is mixed with the preheated gas to give a temperature on the catalyst of 240 DEG C.  The reaction products not recycled are cooled to condense hydrocarbons and water, scrubbed to remove carbon dioxide, and passed to a second reactor after preheating by addition of recycled gases. With cobalt catalysts, preheating to at least 176 DEG  C., and a total pressure of about 25 atmos. is used.
Patent GB-1165616-A (GB)
Title: Improvements in or relating to Apparatus for Lifting Floors Prefabricated Round Building Stanchions.
IPC: E04B1/35
Filed: 1967-05-03
Abstract: 1,165,616. Erecting buildings. HOCHTIEF A.G. FUR HOCH-UND TIEFBAUTEN. 3 May, 1967 [4 June, l966], No. 20517/67. Heading E1S. Pre-fabricated floor slabs 1 cast around columns 2 are hoisted into position by a jack 4 connected to cross-members 5 and 6 in conjunction with rods 7 formed in sections 7a-7c and fixed alternately to the member 6 and the member 5 as the member 6 is first raised by the jack and then lowered. The rod sections are stored in trolleys 11 each with a number of cradles 12, which trolleys are moved horizontally on rails 10 via cables 13 and crank mechanism 15. The final section of each rod 7 is fixed to a cable 16 passing round pulley 17 and operated by a manual or electric winch 18. This final section is preferably of a different length in each rod, to facilitate the handling of the rods by a single operator.
Patent GB-418847-A (GB)
Title: Improvements in or relating to apparatus for cleaning boiler tubes
IPC: F28G3/16
Filed: 1933-07-20
Abstract: 418,847. Cleaning boiler tubes &c. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Compagnie des Surchauffeurs, Soc. Anon. ; 3, Rue la B÷etie, Paris.) July 20, 1933, No. 20540. [Class 99 (ii).] The tubes &c. of a boiler are cleaned by a sand gun comprising a body portion 1 which is secured by a bolt 3 to a plate 2 mounted on the back plate 25 of the boiler and is provided with a rotatable nozzle 18 through which sand from a chamber 9 in the body is propelled by steam &c. fed to said chamber through an inlet 15 and Venturi nozzle 13. The sand is supplied to the chamber 9 from an inlet 8 controlled by a loosely-mounted diaphragm 10 having an aperture 11 of predetermined size, and a second Venturi nozzle is located at the outlet from the chamber 9. This second Venturi nozzle, which is divided at its minimum diameter portion 19, comprises also a contracting portion 16 and a divergent portion 17, the portion 16 being fixedly mounted on the body 1 and the portion 17 being integral with the nozzle 18. The forward end of the nozzle 18 projects through a boss 20 on the mounting plate 2 and into a hollow stay tube 27, and its other end is formed as a spigot 21 to engage a socket in the body 1, rotation of the nozzle being effected by a handwheel &c. 22 disposed intermediate its ends. A port or ports 29 may be provided in the body 1 to permit the passage of atmospheric air through the clearance spaces between the nozzle 18 and body 1 and prevent sand entering same, and as shown the bore of the nozzle 18 is obliquely disposed to the axis of the Venturi tube 16, 17. The gun may be provided with a hole normally closed by a screw 24 for clearing the aperture 11. In a modification the gun has forwardly projecting arms secured by screws to a mounting plate which is disposed in a plane at right angles to the axes of the Venturi tubes, a filler ring being located between the mounting plate and the boiler back plate, and the whole of the minimum diameter portion 19 of the larger Venturi tube is made integral with the portion 16.
Patent GB-1181978-A (GB)
Title: Improvements in or relating to Devices for Automatically Locking the Transverse Joints Between Movable Hatchcovers or the like
IPC: B63B19/24
Filed: 1967-05-04
Abstract: 1,181,978. Hatch covers. MAC GREGORCOMARAIN. 4 May, 1967 [5 May, 1966], No. 20702/67. Heading B7S. [Also in Division E2] A self-acting device for automatically locking in the covering position the transverse joint between two adjacent rolling or sliding hatch cover sections 5 and 6, which are movable substantially vertically in the covering position between a fluid-tight lowered position and a raised or lifted travelling position, consists of a clamping element 1.5 carried by cover section 6 and actuated by member 17 which is connected to the clamping element and which strikes a stationary abutment surface. In the embodiment shown the clamping element is a hook-like finger 15 which is one of several on a shaft 13 and each of which engages with its associated stop 16 on cover sections 5 when actuating member 17 strikes coaming ledge 3 and causes shaft 13 and the fingers 15 to rotate. In the embodiment of Figs. 5 and 6 (not shown) the clamping element 15a is adjustable.
Patent GB-1447223-A (GB)
Title: Composition and process for colouring sheet materials
IPC: C14C11/00
Filed: 1972-07-04
Abstract: 1447223 Coated products VINYLIZE SYSTEMS (EUROPE) Ltd 3 Oct 1973 [4 July 1972] 20780/72 Heading B2E [Also in Division C3] The surface of sheet materials, particularly grained sheet materials are coated with compositions comprising ammonium hydroxide, a surfactant, an antifoam agent, silica gel, a monobutyl ether of ethylene glycol, a plasticiser (e.g. tributoxyethyl phosphate), an alkylene glycol (e.g. ethylene glycol), a water-insoluble acrylic polymer, formaldehyde and a pigment. The sheet material may be natural leather or a vinyl chloride homopolymer or copolymer.
Patent GB-1467615-A (GB)
Title: Voltage sensitive trigger circuit
IPC: H03K5/08
Filed: 1975-05-16
Abstract: 1467615 Threshold circuit PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 May 1975 [21 May 1974] 20839/75 Heading H3T A circuit which produces an output pulse in response to an input signal passing (at time t 0 ) through a negative threshold level in a negative going direction, comprises an amplifier 1, 2, 3 with negative feedback 11, a level changer 4, and a monostable threshold circuit 5, 6, and is characterized in the provision of feedback 12 which tends to stabilize the threshold level of the overall circuit against variations caused by both supply voltage variation and temperature variation. The stabilizing action of the feedback operates as follows. In the absence of feedback 12, a rise in temperature by increasing the base-emitter current of T1 reduces the threshold level. However, with feedback 12 present any such increase in the base-emitter current of T1 is reduced because a rise in temperature will also reduce the potential of the base of T6 (which is normally saturated) thereby reducing the base potential of T1. Similarly, in the absence of feedback 12 a rise in supply voltage raises the potential of the base of T4 thereby raising the threshold level. However, with feedback 12 present, the rise in potential of the base of T6, which accompanies a rise in supply voltage, raises the base-emitter current of T1 thereby tending to reduce the threshold level and to compensate for the rise that T4 would otherwise bring about.
Patent GB-688750-A (GB)
Title: Improvements in balances
IPC: G01G1/00
Filed: 1951-09-04
Abstract: 688,750. Weighing-apparatus. GOOI, B..G. M. L. VAN HET. Sept. 4, 1951 [Sept. 4,1950], No. 20855/51. Class 143 In a balance, the jockey weight 32 is moved along a track 30 by a frusto-conical member 28 which, when the beam is lowered on to relieving supports 8, engages a similarly shaped bore in weight 32, and which is movable parallel with the beam by a rack bar 26 and a pinion 22, a weight indicating dial 23 being rotatable with the pinion. In a modification, Fig. 3, the weight 32 fits into a cylinder 33 carried by member 28 and forms an air dash pot.
Patent GB-499408-A (GB)
Title: Improvements in and relating to the treatment of waste liquors
IPC: C02F3/12
Filed: 1937-07-28
Abstract: In order to render it fit for discharge into a stream waste liquid containing thio-carbonates is treated with air in the presence of sulphur-oxidizing bacteria.  The liquid may be passed through a percolating filter containing the bacteria or air may be passed through the liquid after the addition of activated sludge thereto. When liquors from rayon industry processes are treated, the cellulose may be precipitated first by means of a salt solution or by warming. Specifications 729/14, 19916/14, 21976/14, 21985/14, and 22736/14, [all in Class 111], are referred to.
Patent GB-562053-A (GB)
Title: Treament of slag and other smelts
IPC: C04B5/00
Filed: 1942-12-10
Abstract: 562,053. Foaming slag. HILL, L. C., and HOLLAND & HANNEN & CUBITTS, Ltd. Dec. 10, 1942, No. 21045/43. Divided out of 562,040. [Class 22] Slag is foamed by discharging the molten material into shallow water W in a series of buckets 1 formed as an endless travelling chain by pins 6 passing through lugs 5. Each bucket 1 has side flanges 7, a cooling and strengthening rib 10, a renewable central portion, and a lip 8 projecting over a rim 9 of the following bucket. The pins 6 preferably have collars at each end to engage guide rollers as disclosed in Specification 562,040. The wheels about which the bucket chain passes have renewable carbonsteel tooth segments.
Patent GB-804438-A (GB)
Title: Improvements in or relating to rubber or the like spring supports
Inventor: HIRST ARCHIE JOHN
IPC: B61F5/30
Filed: 1955-07-20
Abstract: 804,438. Rubber spring units; springs for railway vehicles. METALASTIK, Ltd. July 12, 1956 [July 20, 1955], No. 21067/55. Classes 103(6) and 108(3) In a spring system comprising a pair of pre-compressed rubber springs A, B arranged in V - formation and with their longitudinal axes in a common plane, so that when loaded they are in combined shear and compression, each spring having considerable length in relation to its width, friction damping means 17 restricting the free movement of the springs A, B, means additional to the friction damping means 17 are provided for controlling the amount of transverse flexibility of the springs to accord with the requirement of a particular installation beyond that with which the friction damping means 17 may deal. As shown, the system is applied to the suspension of a bolster 15 on a railway vehicle bogie frame 14, by a pair of springs A, B at each end of the bolster 15. Each spring A, B comprises a series of rubber blocks 10 and an intermediate rigid plate 12 having extensions 16, which are forced, by the moment due to the two halves of the spring on either side of the plate 12 being out of alignment, into engagement with friction pads 17 rigid with the frame 14. The additional controlling means comprises a rigid tie bar 24 connecting the plate 12 of the spring A with the spring A of the pair of springs at the other side of the bolster 15. A second tie bar 24 similarly connects the plate 12 of the spring B to the corresponding plate at the other end of the bolster. In a modification, in which a degree of transverse flexibility is permitted, the tie bar 24 comprises a joint at its centre, Fig. 4. One half of the tie bar 24 is formed with a slot 27 in which is disposed a pin 25 which is rigid with the other half of the tie bar 24 and carries a rubber buffer 26. In a modification, Fig. 2 (not shown), the joint comprises a pin rigid with one half of the bar 24 which is slidably disposed within an eye carried by the other half, with or without the interposition of a sleeve of rubber. Instead of just the upper ends of the plates 12 being connected by the bar 24 the lower end or both ends of the plate 12 may be so connected. In a modified form of the additional controlling means (not shown) the plate 12 may be connected by a suitable linkage to either the bogie frame or to the bolster, instead of being connected as shown to the plate 12 of the other pair of springs.
Patent GB-394499-A (GB)
Title: Process for the treatment of natural and artificial cellulosic fibres with alkali
IPC: D06M11/38
Filed: 1932-07-26
Abstract: A naphthene and a phenol or a derivative thereof such as cresol, xylenol, or chlorphenol are added to mercerizing-lyes.  A small amount of aliphatic alcohols, aromatic or hydrogenated aromatic compounds that increase the moistening power of the lyes may also be added.  In examples, (1) cresol and naphthene alcohol, (2) cresol, naphthene alcohol, butanol, and methyl cyclohexanol are added to mercerizing lyes.  Specification 361,865 is referred to.  Naphthene alcohols are reduction products of naphthenic acids which are obtained as acid waste products in petroleum refining.
Patent GB-809217-A (GB)
Title: Thread retainer for ornamental stitch sewing machine
IPC: D05B73/00
Filed: 1955-11-24
Abstract: 809,217. Sewing machines. SINGER MANUFACTURING CO. Nov. 24, 1955 [Nov. 29, 1954], No. 21177/57. Divided out of 808,351. Class 112 In a lock-stitch sewing machine having a rotary loop-taker carrying a stationary bobbin case the underside of the throatplate 52 is milled away at 329 to provide a bobbin-thread retaining means in the form of an abutment shoulder 330 for maintaining the work limb of the bobbin thread at the extreme left-hand side of the needle aperture 270. The machine may have a laterally vibrating needle or a single needle which reciprocates vertically only; in the latter case the needle aperture is circular. When two needles are employed the construction prevents the formation of hitch stitches. The bobbin case has a bobbin thread guide disposed eccentrically of the loop-taker axis and at the same side of the needle aperture as the shoulder 330. Specification 328,536 [Class 112] is referred to.
Patent GB-772618-A (GB)
Title: Modulated distribution system
IPC: H01J31/06
Filed: 1954-07-22
Abstract: 772,618. Electron-beam apparatus. BURROUGHS CORPORATION. July 22, 1954 [July 24,1953], No. 21441/54. Class 39(1). [Also in Group XL(b)] Relates to distributer systems employing switching tubes of the general type shown in section in Fig. 3. Surrounding a cathode 25 is a plurality of collectors 20 (or an equivalent arrangement of apertured anode and collectors) to any one of which an electron beam from the cathode may be directed by potentials applied to " spade " electrodes 22. The tube is in a magnetic field due to a solenoid 26. The " spades " are normally all at the same positive potential and the lowering of the potential of one directs the electron beam to an adjacent collector. Reference is also made to tubes of the type described in 'Specification 759,153. In such tubes, modulation of the electron beam current by means of a control grid assembly around the cathode disturbs the field configuration in the tube and renders the beam position unstable. Furthermore, where the beam is locked in position by the use of high value resistors in series with the " spades " modulation of the beam to a value approaching cut-off tends to remove the locking control. In accordance with the invention, modulation is effected by means external to the tube connected in the cathode circuit, and the beam position is stabilised either by additional electrodes or by external circuit means which hold the " spades " at the desired potentials irrespective of the value of the beam current. Fig. 5 shows the first embodiment utilizing additional electrodes 32A, 32B &c. The modulation means comprises a tube 17<1>, in the anode circuit of which is connected the cathode 25 and to the grid of which is applied the modulating signal to be distributed to 'the collector electrodes. The beam is locked in position by high values of " spade " resistors 301, 30<1>A &c., the additional electrodes causing sufficient of the beam to impinge the spade to produce the locking action even when modulation approaching 100 per cent is utilized. The additional electrodes are connected in two sets via leads 37 and 38 to a bistable circuit 34 triggered by regular or random pulses from a source 35 at the desired frequency of stepping from collector to collector. With lead 37 at a high potential and lead 38 at a low potential, the beam is positioned as shown on collecter 20A. When circuit 34 is triggered to reverse the conditions, the beam is diverted towards spade 22B and the resulting fall in potential switches the beam to collector 20B. Fig. 4 (not shown) illustrates the second embodiment utilizing a tube without special electrodes and in which the beam positioning and locking is effected by an external generator producing potentials for the " spade " electrodes which are connected via low value resistors so that their potentials are independent of the beam current. Figs. 6-8 (not shown) illustrate further details of the second embodiment when arranged for regular and random switching of the beam between collectors, reference being made to Specification 763,934 [Group XL(c)]
Patent GB-1264059-A (GB)
Title: Improved dielectric structure for semiconductor device
IPC: H01L21/331
Filed: 1970-05-05
Abstract: 1,264,059. Semi-conductor devices. ITT INDUSTRIES Inc. 5 May, 1970 [14 May, 1969], No. 21494/70. Heading H1K. In a semi-conductor device the surface of active regions (the gate region of an IGFET or the emitter and base regions of a planar transistor) is so covered with dielectric that the surface has a low number of surface states and a low threshold voltage, whereas the surface of remaining regions is so covered with dielectric that the surface has a higher number of surface states and a higher threshold voltage. In one embodiment a silicon IGFET has a thin gate dielectric of silicon oxide produced by heating the semi-conductor in dry oxygen at 1150- 1200‹ C. for 30 mins. and then annealing in dry nitrogen at 1150‹ C. for 1 hour. The previously applied insulation covering the remainder of the surface consists of a first layer of steam oxide formed at 920‹ C. a second layer of silicon nitride deposited by an RF glow method, and a final layer of pyrolytically deposited silica, the nitride being removed near the junction with the gate insulation so that the gate, first, and final silica layers mutually abut (see Fig. 2, not shown). A junction isolated planar epitaxial transistor has the bulk of its surface protected by the three layer structure used with the IGFET and its base and annular emitter region covered with a single layer of oxide. In the case of devices having an external layer of pyrolytic oxide this may be exposed to a phosphorus atmosphere (at high temperature), deglazed with aqueous hydrofluoric acid, and annealed in dry nitrogen to achieve desired characteristics.
Patent GB-898091-A (GB)
Title: Improvements in or relating to a railway points heating device
IPC: E01B7/24
Filed: 1959-06-23
Abstract: 898,091. Heating railway points. MERINEX, C. M. G. Aug. 25, 1960 [June 23, 1959], No. 21516/59. Class 104(1). A railway points heating device comprises the combination with a P-chair 16 of a radiant heater 26 having a cowl 40 and pivotal between a position in which the cowl 40 directs heat on to the P-chair 16 and a position in which the cowl 40 is directed upwards and the cowl 14 and its heater 26 are clear of the bolts 25 securing the chair 16 to the sleeper 17. The heater 26 is of the known porous block of refractory material type and is fed with propane gas from containers 45 through flexible pipes 41, 43, 44. The heater 26 is mounted on the rear of the cowl 40, which is open at the front and bottom, and is protected by a grid 35. The cowl 40 is attached to an arm 27, which may be in the form of a tube to supply gas to the heater, which is pivotally mounted at 28 on a mounting 29 secured to the sleeper 17.
Patent GB-811377-A (GB)
Title: Improvements in spray units for washing machines
Inventor: SUTCLIFFE IVOR WILLIAM
IPC: D06B1/02
Filed: 1956-07-12
Abstract: 811,377. Spray-producers. SMITH & CO. (WHITWORTH) Ltd., F. July 11, 1957 [July 12,1956], No. 21544/56. Class 69 (3). A spray unit for a washing machine, primarily for use in the dyeing and bleaching industry, comprises a box A formed with one or more orifices b in its upper surface B, a centre plate D having portions of reduced width to form gaps d<SP>2</SP> mounted to slide over the orifice b and a deflector plate C of greater width than the box and secured to it by bolts c. The centre plate D has slots d, through which the bolts c pass, and is slidable by operating a knob D<SP>1</SP> extending through a slot c<SP>1</SP> in the deflector plate C. The gaps d<SP>2</SP> of the centre plate D allow liquid to emerge from the orifice b, foreign matter loosened by sliding the centre plate D being removed by the emerging spray. The centre plate D and the deflector plate C may be constructed to direct spray to one or both sides of the box A and where a plurality of orifices b is provided the sprays mingle to form a continuous sheet of liquid.