baber/WOPTO huggingface dataset:
Patent GB-1427733-A (GB)
Title: Apertured phosphosilicate glass coatings
IPC: H01L21/00
Filed: 1972-05-04
Abstract: 1427733 Phosphosilicate glass coatings MULLARD Ltd 18 July 1973 [4 May 1972] 20760/72 Heading C1M An apertured phosphosilicate glass layer on a substrate is formed by forming a layer 2 comprising a siloxane mixture (defined below) on a substrate 1 (e.g. a silicon slice), irradiating the layer, using an electron beam, in a pattern corresponding to the apertures required (e.g. using a mask 3), washing the layer with a solvent to remove unirradiated areas of the layer, reacting the irradiated portions remaining with phosphorus halide or phosphorus oxyhalide until a phosphosilicate glass layer 4 is formed which contains 1-15 atoms of P per 100 atoms of Si, then heating the glass-coated substrate in wet oxygen at 600-700‹ C., and then in an atmosphere (e.g. dry N 2 ) inert to silicon at 700-850‹ C., and then at 1000-1100‹ C. The siloxane mixture is a mixture of the compounds and some of the units of the latter being replaced by units of the form In the formula* n is 1-6 and R is methyl, ethyl or vinyl. The phosphorus oxyhalide is preferably POCl 3 . The reaction with the phosphorus oxyhalide may be carried out in dry N 2  at 50-150‹ C. An apertured silica layer may be initially provided on the substrate. The electron beam irradiation may be carried out in an O 2 -containing atmosphere, at an electron energy of 3-25 kV., with a charge density of 75-1200 ÁC./cm.<SP>2</SP>. Unirradiated siloxane mixture may be washed off using acetone. The silicon slice may be initially prepared by oxidizing the slice, immersing in hydrofluoric acid and then in a solution comprising concentrated sulphuric acid and hydrogen peroxide, washing with water and drying.
Patent GB-1327861-A (GB)
Title: Apparatus for coupling out and or separating signals on  subscribers line
IPC: H04M3/24
Filed: 1971-04-19
Abstract: 1327861 Automatic exchange systems ZELLWEGER Ltd 19 April 1971 [3 Feb 1970] 20761/71 Heading H4K In order to detect dialling impulses on a subscribers line for general exchange monitoring purposes, at least one line wire is coupled via a low pass filter 2 to a voltage comparator 5 whose output 5c indicates loop or unlooped conditions, the output being connected via another low pass filter 22 for effectively maintaining a loop signal Ub during momentary interruptions due to dialling. The first filter has a cut off above 10 cps whereas the second one cuts off at 1 cps so that it is insensitive to dialling impulses. The comparator output may be taken direct or via a high pass (between 1 and 10 cps) filter to an input of a NAND gate 33 whose output Uw will follow the dialling pulses in the presence of the line held criteria Ub. Alternating-current metering pulses or calling (ringing) pulses may be detected by connecting one line wire via a capacitor 41 to logic 43. The latter distinguishes these two types of pulse in dependence on the presence of Ub viz metering, on its absence viz calling. The low pass filter 2, a transistorized threshold device 3 and comparator 5 are described in Specification 1,327,862.
Patent GB-559774-A (GB)
Title: Improvements in the manufacture of stud-bolts
IPC: B21K1/44
Filed: 1943-12-11
Abstract: 559,774. Making bolts. NEWALL, A. P. Dec. 11, 1943, No. 20793. [Class 83 (ii)] In the manufacture of studs as described in Specification 557,960 the bars are heat treated prior to the cold swaging which may be carried out with inter-stage annealing or other heat treatment.
Patent GB-1470234-A (GB)
Title: Shampoo containing conditioning agent
IPC: A61K8/00
Filed: 1974-05-10
Abstract: 1470234 Shampoo UNION CARBIDE CORP 10 May 1974 [17 May 1973] 20825/74 Heading C5D A homogeneous shampoo composition for cleaning and conditioning hair in a single application comprises in aqueous solution (A) from 0À3 to 5À0% of a substantially water-soluble quaternary nitrogen containing cellulose ether and (B) from 5 to 30% of a polar non-ionic detergent (in which the hydrophilic group contains a semi-polar bond directly between two atoms but the molecule bears no net charge and does not dissociate into ions), an amphoteric detergent or a mixture thereof. The quaternary nitrogen containing cellulose ethers may be derivatives of methylcellulose, ethylcellulose or hydroxyethylcellulose and include those of the general formula wherein R cell  is a residue of an anhydroglucose unit, Y is an integer from 50 to 20,000 and each R is a substituent of the formula where m is 0 or 1 to 10, n is 0 or 1 to 3 and p is 0 or 1 to 10. An organic anionic detergent may also be present.
Patent GB-578074-A (GB)
Title: Improvements in or relating to welding masks
IPC: A61F9/06
Filed: 1944-10-26
Abstract: 578,074. Welding masks. LAUNDER, J. A. Oct. 26, 1944, No. 20861. [Class 97 (i)] [Also in Group XII] A welding mask for wearing on the face is made of insulating material and has an inner lining designed to shield the user from contact with exposed metallic parts of the shield. A front panel 10, carries a top panel 11, side panels 12 and a bottom panel 37. The top panel 11 formed by overlapping halves secured by rivets 18, has the front panel 10 secured to it by rivets 20 and a strip 35 by rivets 36. The bottom panel 37 comprises an extension of the front panel 10 to form the strip 44 secured by rivets 40 to overlapping flaps 39. Secured to an inner lining 22 by rivets 26 is a dished rectangular frame 24 and a flat covering member 25, between which slides a glass panel 28. A screw stud 33 and nut 34 secure the upper flap 32 of the lining 22 and the end of strip 35, the head of the screw being disposed between the overlapping halves of the top panel 11. Similarly, a screw stud 42, disposed in the bottom panel 37 and a nut 43 secure the lower flap 41 of the lining 22 and the end of the strip 44. The edges of the lining 22 are secured to the mask so that the fastenings, if metallic, are not exposed on both sides. Provision is made for securing a head harness through holes 38.
Patent GB-189745-A (GB)
Title: Improvements in the manufacture of portland cement mortars
IPC: C04B40/06
Filed: 1922-07-31
Abstract: 189,745. Jaques, C. A. Dec. 5, 1921,- [Convention. date]. Concretes and mortars.-Portland cement is mixed in predetermined proportions with sand which has been freed from clay, if necessary, by washing with water and kiln-dried, and the mixture is stored in moisture-proof containers.
Patent GB-531346-A (GB)
Title: Improvements relating to drying tumblers for use in laundries
IPC: D06F58/00
Filed: 1939-07-19
Abstract: 531,346. Rotary laundry drier. TULLIS, Ltd.. D. & J., and WILSON, R. July 19, 1939, No. 20941. [Class 34 (ii)] A laundry drying tumbler is fitted with an endless band 4 guided by discs 2 and rollers 5-8 so as to constitute a semi-cylindrical wall. The band carries slats 9 which serve as lifters for the articles to be dried. To enable the latter to be introduced or discharged, the band is allowed to protrude through a doorway 13'to a position B ; for this purpose, the roller 8 is supported by an arm 11 pivoted at 12, and connected to the door 14. A fan and air heater unit 1a are provided in an inlet duct 1b, and an outlet duct 1c allows moist air to escape.
Patent GB-669182-A (GB)
Title: Improvements in or relating to optical projection drawing apparatus
IPC: G03B15/00
Filed: 1947-08-01
Abstract: 669,182. Optical - projection apparatus. RIJNS, M. Aug. 1, 1947 [May 1, 1941], No. 20977/47. Class 97 (i). Optical-projection drawing-apparatus has an object-supporting table displaceable in three mutually perpendicular directions, a lens system displaceable perpendicularly to the object table and mounted in a lighting hood open at its lower end adjacent the object table, and a transparent drawing table, on which an image is formed, displaceable parallel to the plane of the object table and angularly thereto. As shown, the frame 1, on the base 2, has an upper portion 3 supporting the drawing table 4 laterally adjustable by a rack 102 and pinion 101 operated by the hand wheel 10. The table may be inclined by adjustment of supporting screws 9. The projection lens 12, lighting unit 13, hood 6 and curtain 14 are vertically adjustable by the screw 8. The object table 5 is vertically adjustable by the screw 7 and laterally adjustable by rack 112 and pinion 11<SP>1</SP> operated by the hand wheel 11. A backwards and forwards adjustment is provided by another rack-andpinion mechanism, both racks being wide enough for each not to be disengaged from its pinion when the other is operated.
Patent GB-980498-A (GB)
Title: Control valve assembly for advancing hydraulic face roof support structures
IPC: E21D23/26
Filed: 1962-05-31
Abstract: 980,498. Valves. GEWERKSCHAFT EISENHUTTE WESTFALIA. May 31, 1962 [June 9, 1961], No. 21011/62. Heading F2V. In a control valve assembly used to control self-advancing hydraulic face roof support structures a non-return feed valve 2 allows pressure fluid from a pump to flow from inlet 9 to outlets 10 leading to hydraulic props. The valve 2 may be closed by operation of a hand wheel 6 to screw-in the spindle 1 to bring the pressure member 18 down on the valve. The normally closed withdrawal valve 4, may then be opened by rotation of the hand wheel 7 to screw-out the spindle 3 so allowing fluid to flow to the return duct 17. A safety valve 13 interconnects the prop supply ducts to the return line.
Patent GB-360048-A (GB)
Title: Improvements in illuminated signs for traffic guidance, and like purposes
IPC: E01F9/06
Filed: 1930-06-27
Abstract: 360,048. Road surface signs. CROXFORD, G. R., 36, Nightingale Road, Hampton-on-Thames. June 27, 1930, No. 21018/31. Divided on 360,000. [Class 3 (ii).] In traffic-guidance signs of the type comprising a transparent or translucent element located over illuminating means inserted under ground level, the element is formed of two or more layers 4, 5, the upper of which is of phenol formaldehyde resin, cellulose ester, or like resin, cellulose or other material less liable to fracture than ordinary glass. The layers 4, 5 are held in a frame 3 screwed &c. to a casing 2 and secured by a locking pin or screw 8. Thermally or otherwise mouldable cement may be filled in between the element 4 and the frame 3, and between the frame 3 and the road surface 1. The element 4 may have a lenticular, ribbed, or other non-slip top formation, and may have figures, letters, &c. formed in, on, or by itself or its frame 3. A continuous or intermittent raised edge may protect, and a grating &c. may be inserted above, below, or in, the element. The lamp 6 may be of the electric discharge type, and more than one may be provided in each casing 2. The lamps may be of different colours and their lighting may be controlled for signalling purposes. Specifications 346,335, 360,000, and 360,049 are referred to.
Patent GB-918850-A (GB)
Title: An automatic control for a granular bulk material conveyor
IPC: G05D7/06
Filed: 1959-06-18
Abstract: 918,850. Automatic level control for fluent material. YAWATA IRON & STEEL CO. Ltd. June 18, 1959 [June 18, 1958], No. 21038/59. Class 38 (4). In a system for automatically maintaining the depth of granular material on a conveyer between predetermined limits the depth is detected at several points across the width of the conveyer by means which control a rheostat adjusting the speed of a motor driving the conveyer. In Fig. 1 granular material 21 is supplied from a nozzle 67 to a conveyer 24 feeding a sintering-machine (not shown). Five hinged flaps arranged across the conveyer scrape the surface of the material and respectively operate switches 6-10 should the level deviate beyond a predetermined extent in either sense before reaching fixed scraper 23. Actuation of any lower limit switch causes operation of a motor-driven field rheostat to decrease the speed of a motor driving the conveyer and thereby raise the level of the material. Only if no lower limit switch is actuated does actuation of an upper limit switch cause adjustment of the rheostat in the reverse sense to lower the level of the material. Operation of the motor driving the rheostat is made intermittent by time switches which may, however, be set to give continuous control.
Patent GB-685907-A (GB)
Title: Improvements in or relating to power transmission apparatus
IPC: B63H23/08
Filed: 1948-07-05
Abstract: 685,907. Operating reversing-gearing. MATHERS, J. H., (trading as MATHWAY MARINE). July 25, 1949 [July 5, 1948], No. 21076/51. Divided out of 663,078. Drawings to Specification. Class 80 (ii). [Also in Groups XXVII and XXXIII] The Specification describes a marine reversing gear with a single control spindle for the gear and for the engine throttle, the construction being the same as in Specification 663,078, but the claims relate to the operative connection between the spindle and the throttle.
Patent GB-382309-A (GB)
Title: Improvements relating to track braking apparatus
IPC: B61K7/10
Filed: 1931-07-23
Abstract: 382,309. Vehicle brakes. WESTING- HOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. -(Assignees of Grondahl, L. O. ; 7150, Penn Avenue, Pittsburg, U.S.A.) July 23, 1931, No. 21086. Convention date, Sept. 11, 1930. [Class 103 (i).] Eddy current braking apparatus for railway vehicles comprises in one form a transverse bar 2 of magnetizable material, connected to longitudinal bars extending beneath the track rails 1, 1a and provided with a winding 9 which when energized produces a magnetic flux through the bars, the rails, the wheels 6, and axle 7, the resulting eddy currents giving a braking action. In another construction the transverse bar extends between the webs of the rails 1, 1a and longitudinal bars lie alongside and on both sides of the webs. The bars 2 are preferably of higher permeability and lower specific resistance than ordinary track rails. According to the Specification as open to inspection under Sect. 91 (3) (a), the transverse bar 2 may be integral with one track rail and the other track rail is bolted to it, the additional longitudinal bars being dispensed with in this case. This subject-matter does not appear in the Specification as accepted.
Patent GB-783339-A (GB)
Title: Improvements in or relating to rotary air compressors
IPC: F04C29/02
Filed: 1954-07-20
Abstract: 783,339. Rotary compressors. LEAD WOOL CO., Ltd., and BALL, E. F. Sept. 26, 1955 [July 20, 1954; Oct. 25, 1954], Nos. 21198/54 and 30742/54. Class 110 (2). Oil is introduced into an air or like compressor of the outwardly sliding vane type at a pressure lower than the air delivery pressure and in sufficient quantity so as to become entrained in the air to cool it, and also to lubricate and seal the moving parts, the oil being separated from the discharged compressed air and returned to a sump in the compressor for recirculation. Warm oil from the sump 32 passes through pipes 33, 34 and a strainer 36 into a chamber 35 and from a connection 37 to a chamber 66 surrounding the suction side of the compressor, then cooled and passed through a chamber 65 surrounding the discharge side. The oil is delivered to ports 42, in the casing end walls abutting the rotor, which communicate through passages 44 in the rotor and grooves in the vanes with reservoirs in the pockets under the vanes as each vane passes through its fully extended position. Each vane pocket is in communication with an air pocket 28 in front of it through passages 27 so that the oil is forced outwards through end grooves in the blades. Oil is also introduced through jets 50. The compressed air with entrained oil is discharged through ports 25 to an oil separator in which the air is diverted downwards through cylinders 72, outwards through side slots 73 and upwards through a passage 74, most of the oil being thrown out of suspension and falling into the sump 32. Any remaining oil is removed by felt filters 78 and led back to an air inlet chamber 24 which communicates with four air inlet ports 22, 122, 123, 23. A non-return valve 75 prevents discharge of a receiver, connected to an outlet 31, when the compressor is stopped. The pressure of the compressed air on the oil in the sump 32 enables the oil to be circulated without the use of a pump. A port 100 in the separator may contain a fusible plug to prevent damage by overheating if the oil supply is inadequate. End sealing discs rotate with the rotor in bores in the casing end walls. Specification 783,340 is referred to.
Patent GB-594664-A (GB)
Title: Improvements in and relating to frames for windows, doors and the like, and method of making the same
IPC: E06B3/20
Filed: 1944-10-31
Abstract: 594,664. Doors; windows. JABLONSKY, B. Oct. 31, 1944, No. 21234. [Class 20(iii)] [Also in Group V] A moulded window or door frame comprises fibrous material bonded with a cold-setting water resisting adhesive. The fibrous material may be strips of hemp, jute, felt, paper, pulp, &c., in the form of weavings, gauze, wicks, cords, strings or fleece, and after impregnation by spraying with or immersion in the adhesive, the strips may be staked out to dry roughly in the shape of the finished article by means of the posts 10 shown. Subsequent moulding, with the addition of a hardening agent if required, is carried out in dies of metal or bonded fibrous laminae, and heat may be applied electrically or by steam or hot water, or may be generated dielectrically. The corners and junctions of the window frame shown are reinforced by interleaving the fibrous strips or by inserting additional short strips 14. Further reinforcements of wire, wire netting or thin sheet metal (which may serve as a facing) may be used, and loose fibres, waste cotton or wool may also be added. The adhesive may comprise a synthetic resin, e.g., urea formaldehyde and a hardening agent, and powdered adhesive may be placed between the strips of fibrous material in addition to the liquid adhesive. According to the Provisional Specification a thermoplastic or thermosetting resinous adhesive, e.g., in powder form, may be used.
Patent GB-585846-A (GB)
Title: Improvements in or relating to suitcases, trunks and the like
IPC: A45C7/00
Filed: 1944-10-31
Abstract: 585,846. Suitcases; trunks. SALGO-SAYER, Ltd., and GREENWALL, R. E. Oct. 31, 1944, No. 21282. [Class 18] In a collapsable suitcase or trunk the lid is formed of three members, the outer ones 2, 3 of which can telescope withir the central member 1, and a body portion also formed o: three members, the outer ones 6, 7 of which are hinged a 8 to the central member 10. In the form shown, pleated ends 9 of the member 10 are adapted to be pulled out and may be provided with means for securing them to the parts 6, 7. The interior of the body and lid may be subdivided into compartments.
Patent GB-225270-A (GB)
Title: Improvements in wire drawing machines
IPC: B21C1/12
Filed: 1923-08-24
Abstract: 225,270. Western Electric Co., Ltd., (Western Electric Co., Inc.). Aug. 24, 1923. Clutches, friction.-A clutch for a wire-drawing machine comprises a series of annular plates 72 secured to the driven boss 70 by a key 71, the plates being interposed between similar plates 73 secured by a key 71 to the drawing drum 17. The clutch is engaged by an end plate 76 mounted on a rod 77 which is positively driven by the driving shaft, and is moved axially bv a lever 82. A brake 89 splined at 78<1> on the frame of the machine is moved by an internal spring 87 into contact with the face of a wheel 90 secured to the driving drum when the clutch is disengaged.
Patent GB-987428-A (GB)
Title: Decarburization of ferro-alloys
IPC: C21D3/04
Filed: 1961-06-14
Abstract: A ferro-alloy powder having an oxide content at least stoichiometrically equal to its carbon content is decarburized by mixing with an alkali metal compound, such as potassium fluoride or carbonate, and then heating at an absolute pressure of up to 30 mm. Hg. without melting. For example, Fe-Cr (70% Cr, 1% Si, 8.5% C, rest Fe), atomized from the melt to a powder with compressed air so that the C:O ratio by weight was 1 : 1.3, is soaked in a 0.2% w/v solution of KF and then heated to 1300 DEG C. at an absolute pressure of 0.01-30 mm. Hg.  The compound may be added to the alloy, e.g. as powder, to the extent of 0.05-5% by weight of the alloy.
Patent GB-864257-A (GB)
Title: Improvements in or relating to threshing machines
Inventor: BELKOWSKI JERZY
IPC: A01F12/44
Filed: 1956-07-12
Abstract: 864,257. Threshing machines. MASSEY FERGUSON (UNITED KINGDOM) Ltd. June 28, 1957 [July 12, 1956], Nos. 21551/56 and 26070/56. Class 6(3). In a threshing machine the grain-pan 10 and shaker shoe 13 are reciprocated out-ofphase by a driving device which includes a three-armed lever 45, one arm 55 being connected by a pitman 58 to an eccentric 59, a second arm 65 being connected to the grain-pan and the third arm 70 being connected to the shaker-shoe. Both the pan and shoe are suspended by pairs of links 28, 30, 38, 39 from the machine-frame, the lower end of each link being rigid fixed to a cross-tube which passes under the  an or shoe respectively and is similarly fixed to a link on the other side. The pitman 58 comprises two inter-threaded telescopic parts. The shaft 46 carrying the three-armed lever also extends across the machine and carries at its other end a twoarmed lever coupled to suspensory links for the pan and shaker on the other side. The fan 81 which co-operates with the shaker-shoe delivers an air-stream in three parts, the uppermost stream 83 impinging on the stream of material 80 falling from the grain-pan. The main air-blast passes through the chaffer 14 from below to float away the chaff through an exit 24. A small third air-stream 86 passes through the screen 15 to remove small amounts of residual chaff through a second exit 25. The grain falls through both screens and is discharged through an orifice 21.
Patent GB-300931-A (GB)
Title: A new or improved method of and means for inflating the pneumatic tyres of mechanically propelled vehicles
IPC: B60C23/00
Filed: 1927-08-16
Abstract: 300,931. Daneel, R. H. Aug. 16, 1927. Inflating, special methods and accessory device for use in connection with.-Relates to means for inflating pneumatic tyres in which an air line 13, 38 is maintained between the inner tubes and inflating means located on the chassis by means of air passages in the fixed and rotating portions 26, 28 of the hubs of the wheels. According to the invention, the air passages in each hub are connected by a chamber 28<1> which communicates with an air sealing means 30 which is rendered effective by the air pressure in the chamber. The invention is shown in Fig. 8 embodied in a special hub cap for attachment to a stub-axle 26. The stationary portion of the air passage is formed in a nut 21 adjustably fixed to the outer end of the stub axle and having a spigot entering the chamber 28<1> formed in the rotary member 28 which chamber contains a spring 29 pressing on a sealing washer 30. A washer 25 is also provided between the nut and the outer end of the stub axle. The portion 13 of the air line is connected to the inner tube and the portion 38 to the inflating means which may be a pump driven from the crankshaft of the propelling engine. Figs. 1 and 2 show a control nut on the dash board fitted with pressure gauges safety valves and adjustable vents 10 for each tyre. The inflation valves for each tyre are removably mounted in recesses 5 on the control unit to permit of their being transferred to the tyres if necessary.