baber/WOPTO huggingface dataset:
Patent GB-485064-A (GB)
Title: Improvements in and relating to photometers
IPC: G01J1/42
Filed: 1937-07-09
Abstract: 485,064. Photo-electric photometers. BRITISH THOMSON-HOUSTON CO., Ltd. July 9, 1937, No. 19106. Convention date, July 14, 1936. [Class 40 (iii)] Relates to photometers of the type comprising a casing containing a current-generating light-sensitive cell, hinged to a casing contain.- ing a measuring instrument to which the cell is electrically connected, and means such as a diaphragm having an adjustable opening to adjust the intensity of the light admitted to the cell. According to the invention, the casing for the cell is provided with a cover having an opening the area of which has a predetermined relation to that of the cover, whereby the amount of light admitted to the cell can be varied by a predetermined factor by opening or closing the cover. The apparatus shown comprises a light-sensitive cell 11 mounted in a casing 6 which is hinged to the top of a casing 1 containing a micro-ammeter 7. The cell is pressed by a spring 25 against a glass plate 22, which may include or be combined with a lightfilter. Connection between the cell and the ammeter is made through the hinges 19 and through springs 17 which are secured to the hinges and to a plate 15 at the top of the main casing 1. The combination of the hinges with the springs enables the casing 6 to be turned so that the plane of the cell is either normal to the dial of the ammeter, Fig. 1, or may be placed in alignment with the dial, the springs exerting a snap action. The casing 6 may also be placed and held in any intermediate position, such as is shown in Fig. 4. On the casing 6 a lid 30 is hinged, the lid having fitted thereto a slidable diaphragm 32, which may cover to an adjustable extent an aperture in the lid. By this means, according to the brightness of the light measured, the quantity of light incident on the cell through the window 22 may be controlled, the appropriate multiplying factor being determined by calibration. Specification 439,774 is referred to,
Patent GB-1113788-A (GB)
Title: Cap with a releasable fastening for fastening together parts of the headband thereof
IPC: A42B1/22
Filed: 1965-05-06
Abstract: A cap, adjustable in girth, comprises a flat circular crown and a depending panel, the ends of which overlap at the rear of the cap and the lower edge of which is hemmed to form a headband, and is secured in adjusted position by means of filamentary hook and loop strips carried by end portions of the headband.  In alternative embodiments, the ends overlap at the side of the cap or are replaced by a pleat or the panel ends do not overlap and the filamentary loop strip is carried by an extension of the headband.  The cap may be waterproofed.
Patent GB-1437866-A (GB)
IPC: H01H1/18
Filed: 1974-05-02
Abstract: 1437866 Push button switches PLESSEY CO Ltd 2 May 1974 [8 May 1973] 19204/74 Heading H1N In a push-button operated electric switch a cam formed by a pair of frusto-conical surfaces (15) 16 Fig. 1, meeting in an annular ridge 17 on the plunger (2) expands a resilient conductive collar 11 until the cam passes through the collar 11 whereupon the collar contracts and bridges a pair of contacts 8. A compression spring 14 retracts the button 1 when released. The collar 11 may comprise a helical spring wrapped around the plunger and having its ends hooked together. The spring may be of steel plated with gold.
Patent GB-921155-A (GB)
Title: Improvements in or relating to feeding devices, for example, for use with packing machines
IPC: B65G37/00
Filed: 1959-06-05
Abstract: 921,155. Endless conveyers. SCHWEIZERISCHE INDUSTRIE-GES. June 5, 1959 [June 20, 1958], No. 19272/59. Class 78 (1). An endless chain conveyer 2, provided with abutments 3 and travelling on a table 1, is fed with packages 18 by an endless belt conveyer 9, which is driven by a spindle 6 pivoted at 19 to the table 1 and connected at its other end, through universal couplings 7, 13, a telescopic shaft 8 and gearing 15, 16 to the drive shaft 17 of the conveyer 2. The angle between the conveyers can be varied between 10 and 60 degrees by varying the length of the shaft 8.
Patent GB-201741-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H05G1/34
Filed: 1922-07-14
Abstract: 201,741. British Thomson-Houston Co., Ltd., (General Electric Co.). July 14, 1922. R÷ntgen-ray and like apparatus.-The heating current for the cathode filament of a R÷ntgenray tube is controlled by means responsive to variations in the supply voltage and in the current through the tube in such a manner that the rays produced are of substantially constant radiographic intensity. As shown, the cathode filament is supplied with current from the low-tension secondary of a transformer 5, the primary of which is connected across the alternating-current mains 6, 7 in series with a fixed contact 11 and a contact 10 carried by the armature 12 of an electromagnet 13, forming a make-and-break switch. The current through the tube is supplied by the high-tension secondary windings 19, 20 of a transformer 2, in series with which is one winding 15 of the electromagnet 13. A second winding 14 is connected, in series with an inductance 16, across the mains 6, 7 and therefore causes the period of break of the switch 12 to lengthen with increasing voltage and thereby reduce the filament current, the winding 15 being responsive to the current through the tube. These windings are so proportioned that the current through the tube varies inversely as the square of the line voltage. The reactance 16 is operated at a point on the saturation curve where the current increases rapidly with increase of voltage. The movement of the armature 12 may insert and cut out resistance in the cathodeheating circuit. Specifications 121,278, [Class 39 (i), Electric lamps, Arc &c.], 166,097, and 170,546 are referred to.
Patent GB-1270392-A (GB)
Title: Land drainage tubes
Inventor: EDNEY GEOFFREY JOHN
IPC: F16L9/127
Filed: 1968-04-25
Abstract: 1,270,392. Plastics pipes. BAKELITE XYLONITE Ltd. 21 April, 1969 [25 April, 1968], No. 19630/68. Heading F2P. A land drainage tube is made of a cellular plastics material, the wall of the tube being provided with a plurality of apertures each of which increases in size from the outside surface of the tube to the inside surface. The tube, made for instance of cellular polystyrene with a density not greater than 4À5 lb./cu. foot, has, as shown, apertures which have a uniform increase of width and which preferably extend, as inverse wedge slits, transversely relative to the axis of the tube. The exterior surface of the tube may be fluted the apertures being provided in the valleys between the flutes. The apertures may be formed by heating a probe 1 to a temperature between 180-500‹ C., and preferably between 250-350‹ C., with the leading edge of the probe hotter than the remainder or, by heating a punch from 75-125‹ C. Alternatively, the apertures may be formed by electric arcing, the tube containing electrically conductive material; by radio frequency discharge; by a diverging infra-red beam; or by a cone or wedge-shaped jet of heated compressed air. The apertures may also be formed by inserting a probe into the tube wall from the outside and either by causing to probe to vibrate or, by pivoting the heated probe about a point immediately above the outer surface of the tube.
Patent GB-280276-A (GB)
Title: Improvements in or relating to disintegrating or mixing apparatus
IPC: B28C5/20
Filed: 1926-08-10
Abstract: 280,276. African Selection Trust, Ltd., Boise, C. W., and Degenhardt, W. R. Aug. 10, 1926. Continuous-discharge apparatus with moving containers.-Apparatus for disintegrating clayey material, or for mixing sand and cement, of the kind comprising a rotating drum through which the materials are passed, comprises sets of blades adjustably attached to the inside of the drum and arranged to give the materials a forward and backward movement as it progresses through the drum. Fig. 4 shows a development of the drum, the blades B giving a forward movement while the blades C, slightly smaller, give a backward movement. The blades are staggered and are mounted on removable liners B<1>, C<1>, being fixed thereto by a bolt B<4>, Fig. 7, and provided with a serrated boss B<3> engaging a similar boss B<2>, Fig. 6, on the liner. The blades C<x> at the input end of the drum are all arranged in the forward direction.
Patent GB-614042-A (GB)
Title: Improvements in or relating to valve push rods for internal combustion engines
IPC: F01L1/245
Filed: 1946-07-02
Abstract: 614,042. Tappets. STEVENS, A. H. (Thompson Products, Inc.). July 2, 1946, No. 19754. [Class 80 (iii)] [Also in Group XXVII] An automaticallyadjusted tappet 18 of an internal-combustion en. gine valve-gear comprises a sliding sleeve 24 having slots 23 co-operating with a pin 22 extending through a rod 19 screwec into a nut 20 fitted in the tappet casing 21, a tor sion spring 30 fixed to a member 29 carried by a rod 28 fixed to the stuc 19 and tending to rotate the nut 20 in a direction to elongate the tappet At the bottom of the stroke the sleeve 24 imparts a blow to pin 22 which screws the rod 19 into the nut 20 to shorten the tappet, the spring 30 unscrewing the rod out of the nut 20 to take up the clearance before the next up-stroke. The pin 22 is maintained in position by a spring- loaded plunger 25 seated in a groove 22a, and the slot 23 is formed vertical at 23a so that on the up-stroke the blow of the sleeve 24 does not rotate the pin 22. The head 31 of the tappet is spring mounted to leave a small clearance C which allows for changes in tappet length too sudden for immediate adjustment by the inertia sleeve. Lubricating oil supplied at 15 to the cam-follower 12 flows through a bore 19d to channels formed between the rod 19 and nut 20. In a modification, the sleeve 24 is disposed inside the tappet casing.
Patent GB-501051-A (GB)
Title: Improvements in or relating to aerial systems for radio receivers
IPC: H04B1/18
Filed: 1937-07-19
Abstract: 501,051. Wireless receiving systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. July 19, 1937, No. 19883. Convention date, July 17, 1936. [Class 40 (v)] An aerial A adapted to receive signals over a wide range of frequencies is coupled to a transmission line L by a matching transformer T resonant at the lower frequency end of the band, the line being terminated, through a high-pass filter S, by a resistance W equal to the surge impedance thereof. The line supplies a plurality of receivers from points a, b. The filter S may be dimensioned so that the terminating resistance W becomes effective at the frequency at which the capacitative reactance of the cable is equal to the characteristic impedance.
Patent GB-147874-A (GB)
Title: Improved method and apparatus for fixing slot-back types upon the type levers of typewriters
IPC: B41J1/00
Filed: 1920-07-09
Abstract: 147,874. Wanderer - Werke vorm. Winklhofer & Jaenicke Akt.-Ges. April 2, 1914, [Convention date]. Types, alining and securing on carriers.-In a method of and apparatus for alining and securing slot-back types on type-levers, each type is placed upon a similarly engraved part of a support, consisting of a revoluble disk or a slide, which is moved to position the type below the type-lever; the type:lever is then firmly held and the support and type-lever are moved relatively to force the type on to the type-lever, the movement being continued until the type is at the correct height. In the apparatus shown in Figs. 1 and 2, the support 22 is revolubly mounted by means of a shaft 23, Fig. 1, and ball-bearings 19 on a plunger 17 which is guided by a standard 1 and can be raised by means of a shaft 4 formed with eccentrics 5 engaging rollers 14. The shaft is operated by a hand-crank 10, or in some cases by a motor. The support is formed with counterpart recesses 25 for the types 26, the recesses being numbered to correspond to the usual numbers on the typelevers. The support is retained, with slight play, in the raised position by a tooth 24a, Fig. 1, which engages recesses 24 in the support. An adjust able pointer 23a on the shaft 23 indicates the type that is being attached. The segment 28 carrying the type-levers 27 is secured by screws 28a to the standard, the free ends of the type-levers being supported by a bracket 30 on the standard. The type-lever that is to receive a type is thrown over on the pivot-wire 28b into engagement with the aliner 29 on the segment and is then clamped by sliding jaws 39, 40, Fig. 2, mounted in bosses 34, 33 on the standard. Sliding rods 35, 36 mounted in the bosses are connected by plates 37, 38, the jaw 39 being secured to the plate 37, and the jaw 40 receiving a left-handed screw 44 which passes into an internally threaded spindle 45 having an external right-handed screw passing through the plate 38. A handle 46 for operating the clamp is secured to the spindle 45. The arrangement prevents the clamp from bending the type-lever, since if one jaw engages the type-lever in advance of the other jaw, the first-mentioned jaw is arrested until the second-mentioned jaw engages the type-lever. In operation, a type is placed in the corresponding recess, the support is turned to position the type beneath the end of the type-lever, the clamp is operated, and the support is raised to force the type on to the type-lever. The type may be inserted in the recesses by automatic feeding and selecting mechanism of the kind employed in typesetting machines.
Patent GB-1139187-A (GB)
Title: Mixing valve for use with hot and cold fluids
IPC: G05D23/13
Filed: 1966-05-05
Abstract: 1,139,187. Valves. A. LINS. 5 May, 1966 [11 May, 1965], No. 19985/66. Heading F2V. A mixing valve has an automatic temperature regulating means 10 disposed in a mixing chamber 2 and provided with a bellows 16 connected by a piston rod 19 and a linkage 30 with a movable valve element 7 controlling the infeed of hot and cold water through inlets 6, 5, the temperature feeler unit being detachably inserted in a housing 9 and moving in a direction parallel to the axial movement of the valve. The unit is provided with a liquid or gaseous control medium 18, is secured in the housing by a nut 11 and an adjusting screw 12 and has a screw threaded connection 19b with the piston rod to permit the controlled temperature to be varied by a knob 40. The connection 19b causes axial adjustment of a sleeve 21 forming an abutment for a loading spring 20 and having a pin 24 to engage a slot 23 in a sleeve 22 to prevent rotation. The linkage 30 is guided in a bifurcated part 31 of the valve housing while the valve element is slidably mounted on a stationary guide 8.
Patent GB-1483974-A (GB)
Title: Feeder dispenser for bulk material
IPC: B65G53/46
Filed: 1975-05-13
Abstract: 1483974 Metering apparatus SPRIBAG AG 13 May 1975 [31 May 1974] 20003/75 Heading B8N A pneumatic feeder-dispenser for bulk material such as mortar, concrete, sand, gravel &c. which may be wet, comprises a rotor 3 provided with a set of chambers 5 each provided with an elastic lining 19 to prevent sticking of the material. The lining may be a tube held by flanged ends 24 by plates 10, 11 to the rotor 3 or may be sprayed on to the wall of the chamber. The chambers are filled sucessively from a hopper 33 and discharged by air from a duct 31 along an outlet 47. The rotor is indexed or continuously rotated. The chambers may be arranged obliquely to the axis of the rotor. Each lining may be conically tapered downwards to aid discharge.
Patent GB-404356-A (GB)
Title: Ornithopter
IPC: B64C33/00
Filed: 1932-07-15
Abstract: 404,356. Ornithopters. MASCOW, H., 5, Hindenburgstrasse, Neisse, Upper Silesia, Germany. July 15, 1932, No. 20062. [Class 4.] In an ornithopter inner oscillatable wings 5 are flexibly secured to outer wings 4 and are connected to the body 2 by springs 8 fastened to their innermost ends in the zone of the greatest amplitude of the pedal force. The wings 4 are flexibly mounted in the outer junctions of struts 1 by rubber buffers 11. The wings 5 may be flexible and may be constructed with shutters opening on the down strokes. Flying machines equipped with propelling mechanism may be similarly constructed.
Patent GB-983442-A (GB)
Title: Speed control of presses
Inventor: FERNBACH HANS RAINER
IPC: B21C23/21
Filed: 1960-06-08
Abstract: 983,442. Extruding. LOEWY ENGINEERING CO. Ltd. June 1, 1961 [June 8, 1960], No. 20114/60. Heading B3P. [Also in Division G4] A speed control circuit (see Division G4) for an hydraulic metal extrusion press includes switches LS120-LS123, Fig. 21, so arranged that as the press stem 3 is moved by a main ram 2 towards the workpiece the switches are closed successively, thus permitting the speed of the stem to be varied at preset points along its path. A concentric piercing mandrel 7 actuated by ram 10 may have a similar speed control arrangement using switches 24. Drawback rams 12, 13 are provided. The billet container 15 is movable axially by ram 16.
Patent GB-130254-A (GB)
Title: Improvements in or relating to Domestic Fire-grates and Air-heating Appliances to be used therewith.
Inventor: SCATTERGOOD GEORGE
IPC: F24B1/188
Filed: 1918-12-05
Abstract: 130,254. Scattergood, G. Dec. 5, 1918. Fuel-economizers; air-heating fittings.-A device of the kind consisting in a hollow body which reduces the fuel space in a grate and supplies heated air to the room is formed with an open bottom and front. Fig. 1 shows a hollow cheek for use in a kitchen range having an open bottom 6 through which air enters and an open front 5 from which it passes, after heating, to the room. The lower part may be set back, as shown at 10, in order not to diminish the flue opening beneath the boiler d, Fig. 4. Figs. 6 and 10 show a hollow jacket extending round the back and sides of a fire-place, preferably furnished with a grate 17 supported on lugs 18 and shoulders 19 above the level of the open bottom of the jacket. Feet or lugs 20 raise the bottom of the jacket above the grate on which it stands to allow air to enter, the heated air passing to the room through the open ends 15. Alternatively, the outer wall may be deeper than the inner, or openings 21 may be made in the lower edge of the inner wall. The jacket may be built in to form part of a range or grate instead of being used on an existing grate.
Patent GB-754790-A (GB)
Title: System for airconditioning and ventilating
Inventor: SIPKES JAN
IPC: F24F3/044
Filed: 1954-07-10
Abstract: 754,790. Ventilating. NAAMLOOZE VENNOOTSCHAP NEDERLANDSE AIRCONDITIONING MIJ GEB. VAN SWAAY. July 10, 1954, No. 20227/54. Class 137. A ventilating and air conditioning arrangement, particularly for use in marine installations, comprises a centrifugal fan 2 installed in a fan. room 1 and having a discharge duct 3, 5 accommodating a heating coil 4 and leading to the rooms to be conditioned, recirculated air from these rooms returning through a duct 6 leading directly to the room 1, or to an enclosed space 10 leading to a supply duct 11 for outside air which is supplied to the room 1, and thus to the fan 2; by an auxiliary unit 15. The latter comprises a filter 12, a cooler 13, and a propeller booster fan 14. An adjustable damper 7 mounted between the space 10 and the duct 6 regulates the distribution of recirculated air passing directly to the fan 2 and to the auxiliary unit 15. If the cooling coil 13 is switched off the fan 14 is likewise put out of operation, the fresh air then passing through the passage 10 to mix with the recirculating air entering the room 1 directly.
Patent GB-919322-A (GB)
Title: Manufacture of aluminous cement
Inventor: CHODAK MIROSLAW EUGENIUSZ
IPC: C04B7/32
Filed: 1960-06-09
Abstract: An improved high alumina cement is obtained by treating a high alumina slag in the molten state with 0,5-10% by weight of carbon to reduce the alkali metal content.  The slag used is usually a phosphorus furnace slag and should not contain more than 10% by weight of silica calculated as SiO2; any fluorine present should not exceed 3,5% when the silica content is less than 5% by weight, and 2,5% when the silica content is 5-10% by weight.  The slag is heated in a furnace to 1500-1800 DEG C., the carbon, preferably powdered anthracite, being added prior to or during the heating.  After reduction the slag is cooled, ground and packaged as a cement. Specification 747,016 is referred to.
Patent GB-422403-A (GB)
Title: Improvements in or relating to the production of rubber thread and apparatus therefor
IPC: B29D99/00
Filed: 1934-07-11
Abstract: 422,403. Rubber threads. INTERN. TIONAL LATEX PROCESSES, Ltd., 1 Lefebvre Street, St. Peter's Port, Guernse July 11, 1934, No. 20324. Convention dat Aug. 24, 1933. [Class 70] Rubber threads are made by depositing rubber from a solution or dispersion on to a travelling wire having a comparatively sharp longitudinal edge, or more than one such edge, dividing the rubber deposit along the edge or edges and stripping from the wire. The rubber may be coagulated by applying a coagulant to the wire before passing it through a rubber dispersion, and the coagulated deposit may be dried before stripping it from the wire. In the apparatus shown, an endless triangular wire is looped a number of times over two rollers 11, 13. Each pass of the wire is led through a coagulating bath 16 and then through a latex bath 18. After leaving the latex bath the wires pass up through a drying chamber 20 and then to a stripping device comprising three take off rollers 26-28, Fig. 1<c>, and thread containers 30. The threads may be stripped from every pass of wire, or if a thicker thread is desired from every second, third or fourth pass and so on. Specification 410,006 is referred to.