baber/WOPTO huggingface dataset:
Patent GB-1361196-A (GB)
Title: Electrical switches
IPC: H01H13/02
Filed: 1971-01-22
Abstract: 1361196 Retractive switches JOSEPH LUCAS (INDUSTRIES) Ltd 31 Dec 1971 [22 Jan 1971] 2935/71 Heading H1N A biased-on switch comprises an insulating moulded case 11, a conductive base-plate 12, a sliding contact carrier 15 having a resilient U-shaped contact member 17 secured thereto by tabs 19, and a spring 21 arranged to bias the carrier so as to establish an electrical circuit from the fixed contact 14 via the contact member 17 to the conductive base-plate 12. Apertured wings 23 integral with plate 12 are used to secure the switch by bolting &c. to a conductive support (not shown), which may be earthed, and tabs 24 secure the case 11 to the base-plate 12 by engaging over lugs 25 formed in the case walls. The case may be of an acetal copolymer, the base of steel and the contact strip of phosphor bronze. Depression of the actuating button 16 causes the electric circuit to be broken. An application is in the worming system for a vehicle hand brake.
Patent GB-786007-A (GB)
Title: Thiazolo-pyrimidines
IPC: C07D513/04
Filed: 1956-01-30
Abstract: The invention comprises 7-aminothiazolo (5 : 4 - d)pyrimidine and 5 : 7 - diaminothiazolo (5 : 4 - d) pyrimidine of the general formula: <FORM:0786007/IV (a)/1> where R is amino, or hydrogen.  The compounds are made by treating 4 : 5-diamino-6-mercaptopyrimidine or 2 : 4 : 5-triamino-7-mercaptopyrimidine with concentrated formic acid. Examples are given. Starting material.  4 : 5-Diamino-6-mercaptopyrimidine is made by heating 4-amino-6-chloro - 5 - nitropyrimidine with aqueous potassium hydrosulphide while passing in hydrogen sulphide.
Patent GB-660471-A (GB)
Title: Improvements in buttons
IPC: A44B1/20
Filed: 1949-02-03
Abstract: 660,471. Buttons. EMSIG, S. Feb. 3, 1949 [March 1, 1948], No. 2956/49. Class 43. A button 10 moulded in one piece and having a symmetric web 18 providing thread holes 19 is recessed centrally and symmetrically at 22, 23 on both sides of the button. The button is formed from a moulding compound, e.g. a phenolic resin or filler extended moulding resin, made hard, inflexible and infusible by heat and pressure. The button, which is symmetric axially and also along the line O-O<SP>1</SP>, has a narrow rim 11 which merges into flaring faces 14, 15 of maximum thickness at the circular edges 16, 17 of the recesses 22,.23; the pressure of plates M, M<SP>1</SP>, e.g. of a mangle, is thus applied uniformly to the edges 16, 17 so that the web of the button is not subjected to flexure. The rim 11 is readily gripped by the fingers F, Fig. 5, of a button-sewing machine, and the feed of the buttons to the machine is facilitated in that, due to the symmetry, it is immaterial which face of the button is uppermost.
Patent GB-1244253-A (GB)
Title: Material dispersion-hardened by internal oxidation
IPC: C22F1/00
Filed: 1969-01-20
Abstract: 1,244,253. Dispersion hardening alloys. DEUTSCHE GOLD-UNDSILBER-SCHEIDEANSTALT Jan.20, 1969 [Jan. 20, 1968; Sept.27, 1968], No.3058/69. Headings C7A and C7D. A material consisting of one or more Pt metals and one or more elements having an affinity for oxygen is dispersion hardened by internal oxidation by heating at 800‹ -1, 200‹ C. in a free-oxygen containing atmosphere (e.g. air) for at least 5 hours. If the material is first age-hardened at 300‹ -800‹ C. (e.g. in air), oxidation may be effected at 800‹ -1,400‹ C. The starting material may be in the form of powder (which is then pressed and sintered after oxidation), sheet or wire. Reference is particularly made to starting alloys consisting of Pt-Zr 0À1-5, Pt-Rh 10-Zr1, and Pt-Pd 9À5-Zr1. Other materials mentioned are Pd and alloys thereof, and the incorporation as oxidizable elements of Al, Be, Ti, Hf, Ta and Th.
Patent GB-793734-A (GB)
Title: Improvements in or relating to a sharpening device for hypodermic needles or the like
IPC: B24B19/16
Filed: 1956-01-31
Abstract: 793,734. Grinding. FRANZ, F. Jan. 31, 1956 [Feb. 10, 1955], No. 3090/56. Class 60. A sharpening device for hypodermic needles comprises an abrasive disc 16 rotatably mounted in a frame together with a member 28 which is provided with a needle-supporting chuck 29 disposed eccentric, and directed at an angle, to the axis of rotation of the member 28. The disc 16 is carried by a shaft 14 in a bearing sleeve 13 in a strap 10 for rotation either by a hand crank 15 or by power through a pulley drive. The member 28 is mounted on a shaft 27 which at its lower end is universally carried by means of a ball 32 on a post 33 upstanding from a bracket 11 on the strap 10. In addition to rotating the disc 16, the shaft 14 drives through gearing 17, 24 a shaft 19 which is rotatably mounted between the sleeve 13 and bracket 11 and carries a gear 25 meshing with a gear 25a on the shaft 27. Secured on opposite sides of the gear 25a are two edge cams 37, 38 co-operating, respectively, with followers 44, 45 on the bracket 11 for the purpose of tilting the shaft 27 and member 28 ; a spring 49 connected between the shaft and one of a series of notches in a bracket 51 on the strap 10 urges the cams into engagement with the followers. The upper cam 37 is provided with control surfaces between opposite high and low points so as to traverse the needle outwardly across the face of the disc and then return it, and the cam 38 has opposite high portions between intervening low portions for moving the needle to and from the face of the disc. Grinding occurs as the needle is swung radially outward from the centre of the disc towards its periphery.
Patent GB-539788-A (GB)
Title: Improvements in or relating to the production of artificial threads from viscose
IPC: D01F2/06
Filed: 1940-02-20
Abstract: 539,788. Artificial viscose threads. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Feb. 20, 1940, No. 3216. Convention date, Feb. 23, 1939. [Class 2 (ii)] Artificial threads formed from viscose are passed from the acid spinning bath, maintained at a temperature of 45‹ C., to a stretching bath maintained at a temperature of 45‹ or 50‹ C. and consisting of a dilute solution, containing 5 per cent by weight of one or more of the following substances, hydrochloric, hydrobromic, oxalic or formic acid or urea or glycerine which promote the swelling, or retard the contraction, of the freshly spun thread. Examples are given.
Patent GB-1458853-A (GB)
Title: Coating apparatus and method
IPC: B05C11/04
Filed: 1974-01-24
Abstract: 1458853 Slide/extrusion slot coating hopper EASTMAN KODAK CO 24 Jan 1974 [26 Jan 1973] 3337/74 Heading D1L The slide surface 32 of a slide/extrusion slot hopper, for coating film base with photographic emulsion, is provided with a less inclined lip portion 31 at the lower end thereof. The lip may subtend an angle of Œ5‹ with the horizontal and be chamfered at 39.
Patent GB-236845-A (GB)
Title: Improved means for consuming smoke in furnaces
IPC: F23M3/00
Filed: 1925-02-06
Abstract: 236,845. Talbot, F. J. Feb. 6, 1925. Fire-bridges; air, supplying; baffles.-In a steam boiler furance, of the kind in which heated air is supplied to the flue from one or more chambers behind the bridge, the upper parts of the sides e of each chamber converge, as shown at f, the slot g between them being covered, so as to prevent clogging by ashes, by a bar h which is arranged to leave lateral openings for the passage of air and is made in sections supported by the end walls of the chamber and by intermediate bearers i, j. Air from the ash-pit is admitted to the chamber through a door m operated by a rod r from the front of the furnace, a tray-like baffle o, p, pivoted to the door m and resting on a rod q, being provided to ensure that, when the door m is open, only the hottest air, i.e. that in contact with the underside of the grate c, enters the heating chamber. A stop k on the rear end of the chamber prevents displacement of the bar h by expansion.
Patent GB-489186-A (GB)
Title: Improvements in and relating to systems of illumination
IPC: F21S10/00
Filed: 1937-02-05
Abstract: 489,186. Colour lighting. CLAUDEGENERAL NEON LIGHTS, Ltd., COLLINS, T. L., and HIGGINS, C. Feb. 5, 1937, No. 3488. [Classes 75 (ii) and 75 (iv)] In a system for colour lighting an area, such as the wall 1 of an alcove, by means of a plurality of concealed electric discharge tubes 2 arranged parallel to one another and adapted to emit light of different colours, there are disposed between the tubes 2 and the surface 1 a number of spaced parallel strips or battens of opaque or serni-opaque character. In the form shown in Fig. 1, the strips 4 consist of wooden battens arranged across the top of the housing 3, while Fig. 2 shows a construction in which the battens are assembled in the form of a cylinder rotatable around the tubes 2. Instead of employing battens 4, opaque strips may be painted on a flat sheet of glass or on the surface of a rotatable glass cylinder. In a further construction, a frame formed with a series of slots may be slowly oscillated between the tubes 2 and the surface 1.
Patent GB-883183-A (GB)
Title: Electro-magnetic rotating apparatus
Inventor: JONAS JOHN JOSEPH
IPC: G01B5/00
Filed: 1959-01-30
Abstract: 883,183. Automatic position control systems; induction motors. RANSOME & MARLES BEARING CO. Ltd. Dec. 14, 1959 [Jan. 30, 1959], No. 3492/59. Classes 35 and 38 (4). A generally spherical body is maintained in a constant position vertically by automatic retroactive control of a magnetic support and is also rotated about more than one axis electromagnetically. In Fig. 3 a spherical ball bearing 5 is located between a source of light 7 and a two-cathode photocell 10 so that deviations in the vertical position of the ball are automatically corrected by variation of the energization of a supporting electromagnet 6. Coils 1, 2 and a pair of spaced coils 18 are arranged round the ball with their axes mutually at right angles so that when appropriately energized from a twophase source 20 controlled by a continuously rotating induction regulator (not shown), ball 5 rotates about an axis which is itself rotated. A fixed photo-electric scanning device 14 thus explores the whole surface of the ball and any irregularity causes a change in output at 15 to operate an indicator or faulty ball rejecting device (not shown). The coils, which are wound with wire of rectangular cross-section, are specially shaped where they are close to one another. In one modification, coil 1 is arranged vertically and in another coils 18 are omitted and the axis of intersection of coils 1 and 2 is inclined to the horizontal.
Patent GB-536352-A (GB)
Title: Improvements in sliding windows and doors
IPC: B64C1/14
Filed: 1940-02-26
Abstract: 536,352. Sliding windows. WORCESTER WINDSHIELDS & CASEMENTS, Ltd., and BUSHNELL, F. B. Feb. 26, 1940, No. 3523. [Class 20 (iii)] A sliding window or door, normally flush with the surrounding surface, and more particularly for use in aircraft, comprises a panel which is connected to a slidable carrier bar and is bodily displaced laterally away from its aperture, and then slid behind or over a part adjacent to the aperture. The body 1 of the aeroplane is provided with a sliding door 2 having fixed and slidable windows 4, 5 and lying flush with the body in the closed position. The window 5 is connected by links 12 to top and bottom carrier bars 8 slidable in guide channels formed from metal strips 9, the links being jointed to flanges 13 on the window bars 6. Thus, if the carrier bars 8 are moved in the direction shown by the arrow in Fig. 4, the window 5 is displaced laterally into a plane behind that of the fixed window 4. This is done by Bowden wire control means 18, 19 attached to the carrier bars and operated bv finger piece 15. 17. The window may now be slid behind the fixed window 4 as shown in Fig. 5. The complete door may be arranged to slide into an open position by being mounted at the top and bottom on links 21. 23 hinged together, each link 21 being pivotally connected to a carrier bar 22 slidable in a guide channel 24 fixed to the aeroplane body. The door may be pushed outwards as shown in dotted lines in Fig. 6 when its catch (not shown) is released, and is free to be slid along the guide channels into an open position.
Patent GB-558524-A (GB)
Title: Improvements relating to the handling or conveying of materials
IPC: B07B1/12
Filed: 1942-03-17
Abstract: 558,524. Feeding to conveyers. ROSS, W. March 17, 1942, No. 3529. [Class 78 (i)] Material consisting of a mixture of large and fine particles is fed to a belt conveyer by a shoot d which delivers the material in a direction opposite to that in which the belt carrying surface a is moving. The shoot terminates in a perforated screen so that the larger particles b form the bottom layer in contact with the belt, and the slimes c falling through the screen an upper layer, thus preventing the belt from being clogged up by the slimes when these are of a sticky nature. The shoot surface may be ribbed downwardly to form valleys down which the slimes flow, the larger pieces rolling down along the ridges.
Patent GB-746233-A (GB)
Title: Improvements in plasticizing vinylidene chloride resins
IPC: C08K5/103
Filed: 1954-02-08
Abstract: A synthetic resin composition comprises a crystalline resin comprising a polymer of vinylidene chloride or a copolymer thereof with up to 20 per cent, based on the weight of the copolymer, of other ethylenically unsaturated compounds copolymerizable therewith, and, as plasticizer, from 0.5 to 10.0 per cent, based on the weight of the resin, of glyceryl triacetate, tripropionate or tributyrate. The copolymerizable monomer may be vinyl chloride, fluoride or acetate, styrene, methyl methacrylate, ethyl acrylate, acrylonitrile, methacrylonitrile, methyl vinyl ether, methyl vinyl ketone or methyl isopropenyl ketone.  Other substances which may be incorporated are phenoxy propene oxide or a nuclearly chloro-substituted product thereof and phenyl salicylate or a nuclearly alkylsubstituted product thereof.
Patent GB-1026412-A (GB)
Title: Improvements in distributor worms for bulk material
IPC: B65G33/00
Filed: 1963-01-29
Abstract: 1,026,412. Screw conveyers. FAHRZEUGBAU HALLER, G.m.b.H. Jan. 29, 1963 [Aug. 11, 1962], No. 3613/63. Heading B8A. A screw conveyer for distributing refuse within a refuse vehicle is formed with a large diameter of shaft equal to 180 millimetres or more and carries a worm-thread such that the shaft diameter bears to the thread depth the ratio of 2À5 to 1 or more.
Patent GB-1462362-A (GB)
Title: Mixing valve
IPC: F16K11/078
Filed: 1973-01-24
Abstract: 1462362 Mixing valves H & D E WATTS Ltd 21 Jan 1974 [24 Jan 1973] 3627/73 Heading F2V A mixing valve has a piston 24 movable rotatably and axially in an insert 8 by a lever 25 a body 2 with a base surface 3 for mounting on a horizontal platform such as the side of a sink, washbasin, bath or bidet, conduits, such as 4, for hot and cold water supply pipes and a discharge spout 17, the piston having an annular seal 48 to engage a valving surface 47 as the piston moves to the closed position. Chambers 10 for hot and cold water are separated by ribs (not shown) transverse to the plane of the drawing and communicate through ports 9 and a semi-circular recess 46 in the piston with a mixing chamber 49 which in turn communicates through ports 42, 44 with the spout 17. The piston 24 is rotated to vary the proportions of hot and cold water and is displaced axially to adjust the total volume of flow. The part of the body containing the insert 8 may be inclined to the vertical (Fig. 7) or may be of frusto-conical shape (Fig. 5).
Patent GB-556164-A (GB)
Title: Improvements in or relating to variable discharge plunger pumps
IPC: F02M59/26
Filed: 1942-03-19
Abstract: 556,164. Fuel injection &c. pumps. NEVATT, C. G. March 19, 1942, No. 3687. [Class 102 (i)] In a fuel injection or like reciprocating pump, an adjustable proportion of the liquid is spilled only at the commencement of the discharge stroke, and spring means which effects the delivery stroke augments the kinetic energy of the moving parts to produce a hammer blow on the liquid when the spill is cut off. Either the plunger or the cylinder may reciprocate. As shown, an angularly adjustable plunger 10 reciprocates in a liner 11 for the pump body 12 which has inlet and outlet ports 13, 16. The liner is formed with a helical channel of axial length greater than the stroke of the plunger, and the latter has an axial channel 15 of length less than its stroke. The plunger 10 is resiliently and non-rotatably connected to an upper plunger 19 with a squared spindle 25 slidable in a sleeve 28 which is rotated by a lever 29. The two plungers are reciprocated by a quick-drop cam 30 which engages a roller 34 carried by a two-armed lever 31 which is pivoted at 37 and pivotably carries a forked block 35 which straddles the shank 25 beneath a collar 26 which supports a return spring 38. Lubrication of the plunger 10, and a damping of the delivery stroke, may be effected by the plunger 19 reciprocating in a cylinder 40, drawing in through inlets 41 lubricating oil supplied at 46, and forcing it out through outlets 42 into a recess 43 having a non-return valve 44 leading to a discharge opening. The lift of the valve 44 may be adjusted by a rod 45 which may be moved by hand, or automatically by a cam on the lever 29.
Patent GB-541547-A (GB)
Title: Improvements in or relating to valves for fluid-pressure operated apparatus
IPC: F16K1/00
Filed: 1940-02-28
Abstract: 541,547. Valves. SELF-CHANGING GEAR CO., Ltd., and MILLER, A. A. Feb. 28, 1940, No. 3720. [Class 135] [Also in Group XXXIV ] A quick-release valve for brake cylinders &c. of fluidpressure-operated brakes &c. is first partly opened by reduction of pressure on one side in order to exhaust the piping and space on the reduced pressure side of the valve after which the valve becomes fully opened to exhaust the brake cylinder. As shown for venting a brake cylinder a, the valve d contains a stepped piston o with central and side passages p, q and which has at its lower end a valve x closing an exhaust passage V<SP>1</SP> of the piston casing n. Fluid pressure is supplied to the brake cylinder by controller e, the fluid passing through the passages q. Upon connection by the controller to an exhaust passage l of the supply conduit c between the valve and the controller, the reduction of pressure results in the lifting of piston o sufficiently to connect the space and the conduit above the piston through the passage q to the exhaust passage v<SP>1</SP>; following this, the pressure below the piston causes its further lifting and this connects to the exhaust passage v<SP>1</SP>, the brake cylinder a and its connected piping by reason of the opening of the part of the casing n previously closed by the lower part u of the stepped piston.
Patent GB-539161-A (GB)
Title: Means for timing and controlling the working cycle of hydraulic presses
IPC: B30B15/16
Filed: 1940-02-28
Abstract: 539,161. Hydraulic presses: valves. TURNER TANNING MACHINERY CO., Ltd., and SCHETTLER, G. A. Feb. 28, 1940, No. 3732. [Classes 69 (ii) and 135] The operating lever 2 of a hydraulic press is held in operative position by the engagement of a pawl 7 with a catch 8 arranged at the top of a cylinder 16, and means are provided for automatically releasing the pawl so as to control the time of application of the pressure. The means comprise a spring-controlled piston 34 which is raised by the pressure fluid when the valve is open, the rate of entry of fluid to the cylinder 16 being controlled by a needle valve 27 which controls the entry of fluid from a passage 17 associated with the passage 18 which receives fluid from the reservoir under control of valve mechanism as in Specification 539,159, and is associated with mechanism as in Specification 539,160 for applying a preliminary closing pressure. The fluid enters valve 27 via a port 33, and the piston 34 is fitted with a stem 40 which is received in a guide 38 and ultimately effects the release of the pawl 7. The lever 2 actuates the valve stem 3 by means of a slipping clutch 11 acted upon by a spring 12 which presses the valve stem on its seat. A worm 14 permits angular adjustment of the valve stem. To enable the press to be handcontrolled a screw 10 is provided to adjust the pawl 7 out of the path of the catch 8. The device may be made as an attachment to an existing press. The liquid passes mainly through a spring-pressed return valve 22 when the pressure is released.
Patent GB-792310-A (GB)
Title: Improvements in or relating to wheel suspensions for motor vehicles
IPC: B60G17/08
Filed: 1956-02-07
Abstract: 792,310. Spring suspensions; adjusting body height; hydropneumatic shock absorbers. FORD MOTOR CO., Ltd. Feb. 7, 1956 [Feb. 7, 1955], No. 3753/56. Classes 108(2) and 108(3) An independent suspension for a motor vehicle having a frame 11 and road wheel 12 comprises a spindle support 19 rotatably mounting the road wheel, a suspension arm 13 pivotally connected at one end to the frame and universally connected at its opposite end to the spindle support, a combined telescopic shock absorber and control member 25 secured at its lower end to the spindle support and extending vertically upwardly therefrom, means connecting the upper end of the shock absorber to the frame, a valve body 32 forming part of the shook absorber fixedly supported with respect to the spindle support and slidable within the shock absorber to provide a reservoir chamber 46 above the valve body which varies in volume as the road wheel rises and falls, a cylinder 52 supported upon the vehicle frame, the cylinder having interconnected pistons 56 and 57 slidable in and defining two chambers within the cylinder, a conduit 51 providing communication between the upper end of the reservoir chamber 46 and one of the aforementioned two chambers, the other of the two chambers having means associated therewith to apply pressure upon the piston defining it and hence upon the liquid in the reservoir chamber with the pressure being variable as the road wheel rises and falls. As shown, the suspension arm 13 is connected to the spindle support by a ball joint 18. The combined shock absorber and control member 25 comprises inner and outer tubes 23 and 24, a piston 27 slidable within the outer tube 24 and carried by an upper tube 26 and the valve body 32 slidable in the upper tube 26 and carried by the inner-tube 23. The upper 'tube is attached to the vehicle frame through a resilient mounting 28. Valves 36 and 37 in the valve body 32 are of the form described in Specification 779,597. The reservoir chamber communicates with an annular chamber 47 and with the tube 23 through the valves 36 and 37. Communication between the tubes 23 and 24 is nrovided by an aperture 44 .in tube 23. The conduit 51 communicates with a liquid-filled small diameter portion 53 of the cylinder 54 defined by the piston 56 which is subject to the pressure of compressed air above the piston 57 in a large diameter portion of the cylinder. The riding height of the vehicle is adjustable by means of a hydraulic pump 61 and a valve 63 to admit or return liquid to or from the small diameter portion of the cylinder.