baber/WOPTO huggingface dataset:
Patent GB-253151-A (GB)
Title: Improvements in boiler furnaces
IPC: B05D7/26
Filed: 1926-06-08
Abstract: 253,151. Chappuis, C. June 8, 1925, [Convention date]. Boiler furnaces; combustion chambers, secondary; baffles; air, supplying.-A furnace supplied with forced draught comprises a charging column 1 disposed above the front part of the mechanical grate 6 and two combustion chambers 3, 4 in the first of which imperfect mixture of the gases with preheated air takes place, admixture with further preheated air and complete combustion taking place in the second combustion chamber 4 which is covered by a conducting arch 19. Air preheated in the jacket 8 is admitted to the top of the charging column 1 and the products of distillation from this column are drawn through the layer of incandescent fuel 10 on the grate 6. Further air preheated in a jacket 7 is admitted through an aperture 9 which is arranged immediately below the roof of the chamber 3. The chamber 4 is made of sufficient size to obtain complete combustion and is provided with baffles, while the roof 19 is corrugated to increase the radiating surface. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification applied to a locomotive boiler in which the fuel is fed directly to the grate, which is extended outwards from the furnace. This subject-matter does not appear in the Specification as accepted.
Patent GB-1535042-A (GB)
Title: Preparation of photographic silver halide emulsions
IPC: G03C1/005
Filed: 1975-04-09
Abstract: 1535042 Silver halide emulsion AGFAGEVAERT 17 March 1976 [9 April 1975] 14586/75 Heading G2C In a method for the preparation of a silver halide emulsion including the step of precipitating silver halide grains in an aqueous solution of a peptizer, before or during precipitation a grain ripener is added to the solution of the peptizer to accelerate grain growth, the grain ripener being added in an amount of from 500 mg. to 30g. per mole of silver halide to be formed and corresponding to the Formula wherein n is an integer from 1 to 5, R' is a C 1  to C 5  alkyl or substituted alkyl group, R<SP>2</SP> is hydrogen or a C 1  to C 5 -alkyl group or a carboxylic acyl group, R<SP>3</SP> is hydrogen or a C 1  to C 5  alkyl or substituted alkyl group and R<SP>4</SP> is hydrogen or C 1  to C 5  alkyl or substituted alkyl group, an aryl group or substituted aryl group or a salt-forming cation. Gelatine is a suitable peptizer, and pH 4 to q and p Ag between 5 and 11 are suitable precipitation conditions. The halide may comprise at least 50 mole %, at leat 5 mole % bromide and from 0 to 5 mole % iodide. The precipertation may be carried out under conditions that give monodisperse silver halide grains.
Patent GB-136860-A (GB)
Title: Improvements in and relating to the Lining of Furnaces.
Inventor: ELY WALTER C
IPC: F27D9/00
Filed: 1918-09-09
Abstract: 136,860. Ely, W. C. Sept. 9, 1918. Linings; casings.- The lining of a furnace is formed by chilling molten material from the interior of the furnace in cells in the walls, which communicate through external openings with the atmosphere. A s shown in connexion with a rotary furnace of square cross-section, the cells are formed in blocks or castings 25, Fig. 2, having dovetailed grooves for engagement with similarly-shaped ribs 27 on the outer casing of the furnace. The cells 38 are in communication with the atmosphere through openings 40, but are initially closed to the interior of the furnace. When a charge of slag &c. is inserted and melted, the dividing-partitions between the furnace and the cells break down, and the slag flows into the compartments formed by the perforated partitions 37 until it solidifies, forming a refractory lining. The end throats of the furnace are formed by hollow blocks 41, into which the molten slag penetrates in a similar manner, and these blocks are further protected by a lining of refractory material 50. The four walls of the furnace are bolted together, and the half of one wall is pivotally mounted to form a door.
Patent GB-973835-A (GB)
Title: Improvements in or relating to the production of phenoplast foam materials
IPC: C08J9/00
Filed: 1962-04-16
Abstract: A method of producing a difficulty inflammable phenoplast foam material suitable as a heat-insulating material comprises incorporating in a liquid or solid phenoplast a foaming agent and a hardening agent and, in addition, one or more boron compounds in a total quantity of from 5 to 40% by weight, calculated as boric acid based on the phenoplast, the boron compound(s) being incorporated in the phenoplast before foaming or curing has commenced. Suitable boron compounds are boric acid, boron trioxide, an ester or salt of boric acid, sodium tetraborate, or organic compounds for example mono- and diphenyl borates.  The phenoplast can be derived from mono- and polyvalent phenols, phenolic tar fractions and low-temperature carbonization oils. In example (1) a cresol/formaldehyde condensate (viscosity 2500 cP.) is mixed with a pentane fraction and there are added powdered orthoboric acid, concentrated hydrochloric acid and alcohol.  The mixture is heated in a mould at 60 DEG C. to give a foamed product. In other examples the reactants used are (2) finely powdered and mixed novolak and hexa, to which ammonium carbonate dissolved in mixed mono- and diphenyl borates is added.  The mixture is plasticized at 105 DEG -115 DEG C. on heated rollers, cooled, and broken to give a granulate, which is foamed at 160 DEG C.; (3) phenol resol, petroleum ether, sodium tetra borate and a mixture of glycerol and hydrochloric acid as hardener are used; (4) resorcinol/ formaldehyde condensate (4000 cP), pentane, paraformaldehyde and boron trioxide are used as reactants.
Patent GB-253550-A (GB)
Title: Improvements in process for the manufacture of titanium oxide
IPC: C22B34/12
Filed: 1926-06-11
Abstract: 253,550. Blumenfeld, J., (Assignee of Fabriques de Produits Chimiques de Thann et de Mulhouse). June 11, 1925, [Convention date]. Titanium oxide and sulphate; iron sulphate.- The solution obtained by treating titanium ore such as ilmenite with sulphuric acid is artificially cooled to below room temperature, for instance to 5‹ to -5‹ C. to separate crystals of ferrous sulphate. The solution is then hydrolyzed without dilution, and on cooling to room temperature no separation of ferrous sulphate occurs. The mother-liquor may be used again after concentration.
Patent GB-262158-A (GB)
Title: Improvements in sound signalling installations
IPC: G10K7/06
Filed: 1925-06-08
Abstract: 262,158. Northey, J. P. June 8, 1925. Masts. - Storage chambers 3<a>, 2<a> for the driving and sound-producing air, respectively, of a siren 6 are formed in the hollow mast 10 of a ship, the chambers being connected through a pipe 4 containing a one-way valve 5.
Patent GB-1532018-A (GB)
Title: Gear testing
IPC: G01B21/20
Filed: 1976-04-12
Abstract: 1532018 Testing gears MAAG GEARWHEEL & MACHINE Co Ltd 12 April 1976 [17 April 1975] 14895/76 Heading G1M In a machine for testing a gear 43, a sensor 69 is constrained to follow an involute profile by a mechanism of the type described in Patent No. 736574. A straight-edge 55 moving in guides 55a and carrying a pin 56 is in rolling contact with a cylinder 46 which rotates with the gear 43. A lever 48 is pivoted about the common axis of the gear 43 and cylinder 46 and also to the pin 56 and to a pin 58 which controls the motion of the sensor 69. The lever 48 is movable longitudinally with respect to its three pivot connections 47, 56, 58 thus permitting the largest possible angular movement within a given space. Longitudinal movement of the lever 48 is effected by a rack 50 and pinion 51 driven by a motor 54 which may be controlled by contacts at the ends of the lever.
Patent GB-580896-A (GB)
Title: An improved bearing for use in electric meters and like instruments
IPC: G01R11/14
Filed: 1944-08-04
Abstract: 580,896. Bearings. SANGAMO WESTON, Ltd., and BUTHERUS, F. R. Aug. 4, 1944, No. 14960. [Class 12 (i)] [Also in Group XXXVI] The weight of the moving system of an ammeter or like instrument is slightly more than or slightly less than counter-balanced by magnetic means, and the bearing which resists the out-ofbalance thrust comprises a V or cup-jewel with one of the co-operating bearing elements resiliently mounted by spring means, while the bearing at the opposite end comprises a ring jewel. As shown in Fig. 1, the spindle 11 of the moving system carries a hub 14 to which is rigidly secured a disc of magnetic material 15. The fixed element of the upper bearing carries a permanent magnet 16 which can be so adjusted by means of a threaded sleeve 17 that the weight of the moving system is slightly more than counterbalanced. A tubular member 21 projects slightly below the end of the sleeve 17 and into the interior of the hub 14. The lower end of this member forms a seating for a cup-jewel 24, which is free to move upwards against a spring 26. A second cup-jewel 28 is mounted inside the hub 14 and a bearing ball 31 between the two jewels completes the bearing. At the lower end of the spindle a pivot pin 32, rigid with the spindle, extends downwards into the aperture of a ring jewel 33. This jewel, with its mounting, is free to move downwards against the action of a light spring 38. A shield cap 42 with an aperture for the entry of the pivot pin surrounds and protects the jewel. In a modification. Fig. 2 (not shown), the cupjewel carried by the upper end of the spindle projects into the bore of the magnetcarrying sleeve and is engaged by a bearing pin which is free to move axially upward against a light spring. The lower bearing consists of a ring jewel, mounted in the lower end of the spindle, which is entered by a pin, slidably mounted in the lower bearing screw and urged upwards by a light spring. If the weight of the moving system is slightly less than counter-balanced by the magnetic means, the position of the cup-jewel bearing and ring bearing are reversed.
Patent GB-988614-A (GB)
Title: Primer charge for propellants
IPC: C06B25/24
Filed: 1961-04-25
Abstract: 988,614. Ammunition primers. RHEINMETALL G.m.b.H. April 25, 1961 [April 27, 1960], No. 14983/61. Heading F3A. A threaded percussion primer suitable for igniting the propellent charge of a 20-40 mm. cartridge has an explosive, smokeless primer charge consisting of porous nitro-cellulose powder and a foil of nitroglycerine powder (double base powder). The foil may serve as a cover plate for the primer.
Patent GB-1149730-A (GB)
Title: A toy assembly
IPC: A63H17/25
Filed: 1968-03-28
Abstract: 1,149,730. Moving toy assembly. TOMY KOGYO CO. Ltd. 28 March, 1968 [17 Nov., 1967], No. 14995/68. Heading A6S. A dismountable toy assembly comprises in combination a power unit 1 having a drive shaft 8, and a moving unit 9 carrying the detachable power unit and having a transmission shaft 10 engageable with said drive shaft. The power unit has a driving mechanism 4 including a motor 6. As shown the power unit is in the form of a spaceman having a body 1 and includes dry cells 2a which operate an electric motor 6. The moving unit is a toy having wheels 12 driven by crown gear 14 and pinion 15 attached to the transmission shaft. The power unit is provided with a socket 20 (Fig. 1, not shown) electrically connected to the dry cells for connection to an electrically operated toy gun.
Patent GB-640447-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1945-06-13
Abstract: 640,447. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 13, 1945, No. 15036. Convention date, June 13, 1944. [Class 40 (iv)] A register REG normally selects a crossbar line selector LV in accordance with the first digit of a called number and operates the selector in accordance with the second and third digits. If a PBX number is dialled the register operates a cross-bar relay device K which marks the individual lines allotted the PBX number. An idle line is selected from the PBX group by means of discharge tubes G5 to GS only one of which can operate at any time. The selecting magnets S20 to S29 in the register are operated in known manner by the impulse train and the three digits are registered successively by the magnets HM, TM, EM. Contact 3 is closed by EM and operates relay R9 to seize the device K. A selector LV is selected in known manner in accordance with the digit registered on HM. Battery on back contacts 31, 33 of relay R3 normally operates the horizontal magnets B11 to B10 and the vertical magnets S 11 to S 10 of a selector LV over bars T1 and E1 of the register. If the number registered represents a PBX group (first digit 2) relay R3 energizes in series with one of the selecting magnets S31-S30 of the device K according to the units digit registered on E2 and one or more of the magnets B31 to B33 operates according to the tens digit registered on T2. The condition of each line of the group such as Nr 100, Nr 122 marked by line relay contacts 2, 1 is tested by relays R5, R6 and discharge tubes G5, G6. Only one tube can operate at one time and the associated relay R5, R6 operates the corresponding magnets of the cross-bar selector LV. If no line is idle, relay R4 operates after a delay and effects a connection to a third line of the group whether idle or not. When the wanted line is connected, the line relay Nr 100 or Nr 122 operates, the connection is held over contact of the operated magnet of the series B11 to B10 and the register and the device then released. Marking circuits over a back contact of relay R3 enable a particular line to be called by a special number.
Patent GB-695071-A (GB)
Title: Improvements in or relating to printing devices
IPC: B41K1/42
Filed: 1951-06-27
Abstract: 695,071. Rolling hand-stamps. SCHNACKEL, H. June 27, 1951, No. 15197/51. Class 100(ii) In a roller hand stamp: (1) the printing roller has hoop rings on its periphery adapted to drive it by contact with the impression-receiving surface; (2) the printing roller actuates spring means which return it to its starting position after an impression has been made in either direction of rolling; (3) the printing roller axle is slidably supported in slots in the housing permitting a short movement perpendicular to the impression-receiving surface, and ink rollers are resiliently pressed against a rubber stereo (text and/or pictorial) on the printing roller, the short movement of the latter into the housing serving by means of resilient transmission members to increase this pressure; and (4) means are provided on the ink rollers to prevent inking on non- printing areas of the rubber stereo and on the hoop rings. The printing roller 9 of the device shown has two dove-tail recesses parallel to its axis which receive corresponding rubber pieces glued to the underside of the rubber stereo 27. (1) The hoop rings 26 are elastic, have teeth projecting beyond the printing surfaces 15 of the rubber stereo 27, and are held on the roller 9 by the edges of end covers 22, 23. (2) A pin 19, fixed in the roller 9, is loaded to return to its position adjacent two yokes 17, 18, fixed in the roller axle 4, whatever its direction of displacement, by two springs 14, 16 the crossed ends of which embrace the pin 19 and yokes 17, 18; flats on the ends of the axle 4 prevent rotation. (3) The ends of the axle 4, slidable in slots in the inner walls 39, 40 of the housing, carry pins 5, 6 each of which passes through a yoke 8 pressed away from the axle by a spring 7; the yokes engage two-armed levers 10, 11, pivoted at 12, 13, the lower ends of which engage the ink roller axles 21 projecting through slots 41, 42. In modifications: (i) the ends of the crossbars of T- shaped members secured to the axle 4 are connected by tension springs to the upper arms of the levers 10, 11; (ii) the axle 4 is urged downwards by two leaf-springs, the ends of one engaging beneath fixed projections on the walls 39, 40, while the ends of the other engage beneath the upper arms of the levers 10, 11. (4) The ink roller axles 21 carry removable cylindrical pads 28 clamped between flanges 29 and (in multi-colour printing) spaced by partition discs 30; the parts 29, 30 protrude beyond the pads 28 to control the position of the latter relative to the printing roller 9, so that the printing surfaces 15 alone are inked.
Patent GB-1242492-A (GB)
Title: Improvements relating to the coating of a substrate by r.f. sputtering
IPC: C23C14/35
Filed: 1969-03-24
Abstract: 1,242,492. R. F. spattering. INTERNATIONAL BUSINESS MACHINES CORP. March 24, 1969 [March 25, 1968], No. 15260/69. Heading C7F. A substrate is coated by R. F. sputtering using a method wherein the substrate is positioned in an ionization chamber so that it is at least partially surrounded by a target electrode, and an R. F. potential is applied between an anode within the chamber and the target electrode whereby material associated with the target electrode or a compound of the material is sputter deposited on said substrate, the size and configuration of the target electrode being such that a single negative glow is formed which surrounds the portion of the substrate upon which the material or compound of material is to be deposited. The substrate may be wire, magnetic tape, or a silicon wafer, and the coating material may be Al, silicon dioxide or another oxide, or a nitride such as silicon nitride, aluminium nitride or boron nitride, applied by reactive sputtering from an oxygen or nitrogen atmosphere as appropriate, or quartz or borosilicate glass or a sulphide sputtered directly. In Fig. 1, an ionization chamber 10 is fed with Ar at 15, evacuated by pump 16, and wires 24 are fed by advancing rollers 29 through the chamber, through air locks 25 and 26, both of which are connected to fast vacuum sources. Electrodes 17 and 18 both bearing target material 22, 23, are placed so that the negative glows of the two plates overlap to form a single negative glow in the region of the substrate. Alternative target configurations are an elongated cylinder, Fig. 4, and elongated members of triangular, rectangular, and other cross-sections, Fig. 7, 6, and 8 (not shown).
Patent GB-626183-A (GB)
Title: Improvements relating to betatrons for generating x-rays
IPC: H05H11/00
Filed: 1947-06-11
Abstract: 626,183. Magnetic induction accelerators. BOSLEY, W., and METROPOLITAN. VICKERS ELECTRICAL CO., Ltd. June 11, 1947, No. 15406. Drawings to Specification. [Class 39 (i)] A betatron for the production of X-rays is provided with two electron injectors to provide electrons circulating in one direction for one acceleration period and in the opposite direction for the next acceleration period, and one orbit is expanded to strike one target and the other orbit contracted to strike another target situated at a different orbital radius, the two targets being so arranged that the X-rays emitted from them impinge on the same objective. The expansion or contraction of the orbits is governed by augmenting or reducing the guiding field by control of current to an auxiliary winding. The two injectors may have a common cathode and respective anodes located on opposite sides of the cathode, and one of the anodes may constitute the target for the beam due to the other injector. Specifications 466,836 and 561,816 are referred to.
Patent GB-769067-A (GB)
Title: Improvements in or relating to monitoring means for reflector type aerials
IPC: G01R29/10
Filed: 1955-05-27
Abstract: 769,067. Testing aerial systems. STANDARD TELEPHONES & CABLES, Ltd. May 27, 1955 [May 28, 1954], No. 15431/55. Class 40(7) A monitoring arrangement for an aerial system having an extended metallic reflector comprises a cavity tunable to be resonant at the radiation frequency of the system disposed behind the reflector and coupled to the radiated energy through a suitable aperture. If the aerial system functions at a number of differing frequencies a plurality of cavities, one tuned to each frequency, may be provided coupled through separate apertures or through a joint aperture. The energy accepted by the or each resonant cavity is detected and applied to a meter or other device to provide an indication that radiation at 'the resonant frequency is. being effected. In the embodiment shown a paraboloidal reflector 2 of sheet metal or .wire mesh is energized by means of a dipole primary .element 8 backed by a disc and fed by means of a co-axial feeder 9. The primary element may be a waveguide horn if desired. The monitoring device comprises a tuned cavity 1 coupled to the radio field by means of aperture 3 and tuned to the correct frequency by plug 7. The energy accepted by the cavity is detected by a crystal rectifier connected to hair-pin lead 5 and feeding a meter. The reflector may form part of the wall of the cavity as shown or the cavity may be coupled to the aperture 3 by means of a tube. If this tube exceeds half an inch in length a loop or probe within the tube improves the coupling. The coupling aperture in the reflector have negligable effect on the radiation pattern as their dimensions are small compared with a wavelength. They may be protected by being filled or covered with dielectric material.
Patent GB-703186-A (GB)
Title: Improvements relating to tractor-driven sweeping brushes
IPC: E01H1/05
Filed: 1951-06-29
Abstract: 703,186. Tractor-driven sweeping brush. FARM MAINTENANCE (WARWICK), Ltd., and HOLLICK, F. W. June 26, 1952 [June 29, 1951], No. 15462/51. Class 107 A sweeping attachment for a tractor having a draw-bar consists of a tubular member 11 with side plates 12, one limb of which carries a rotary brush (not shown) having its longitudinal axis 20 disposed as shown. The brush is driven by a chain 33 from a shaft 29, which is rotated by the power take-off shaft of the tractor through reversing gear in the centre assembly, the direction of rotation being altered by a lever 40. The holes 52 (only one shown) are provided for attachment to the hydraulic lift mechanism of the tractor. The member 23 couples to the tractor draw-bar 14 and by putting pins in the appropriate holes 25, 27 the brush can be set to sweep to either side.
Patent GB-145967-A (GB)
Title: A novel form of gearing
IPC: F16H55/10
Filed: 1919-06-20
Abstract: 145,967. Mackay, A. F. June 20, 1919. Toothed wheels; racks.-A gear-wheel is provided with layers of small rollers A or a shell of radial strips supported on a resilient bed E of rubber &c., and the teeth of an ordinary wheel in engagement with it embed themselves in the rollers or strips. Rollers may be interposed between the resilient bed E and an outer shell of transverse strips, and the rollers or strips may be confined by flanges D or otherwise. Corrugations may be formed inside the flanges D or in the wheel hub B to facilitate displacement of the strips and rollers. A rack may be constructed in a similar manner.