baber/WOPTO huggingface dataset:
Patent GB-864418-A (GB)
Title: Process for the production of light metal pistons
IPC: F16J1/04
Filed: 1958-03-05
Abstract: 864,418. Pistons. MAHLE, E., and MAHLE, H., [trading as MAHLE KOMM.-GES.]. March 5, 1958 [April 4, 1957], No. 7036/58. Class 122 (1). [Also in Group XXII] A light metal piston 1 of the kind having inserts 4 made of sheet-metal for inhibiting expansion is made by pressing a die 10, Fig. 5, with the inserts into a hot solid blank. The piston has gudgeon-pin bosses 3 and longitudinal ribs 6 formed respectively by recesses 13 and longitudinal grooves 16 in the die. The inserts are supported initially in grooves 15 of the die with the ends of the inserts located in the grooves 16 behind longitudinal bars 17. The ends of the inserts are thus embedded in the ribs 6 of the finished piston. Each insert may extend on both sides of the gudgeon pin boss 3, Fig. 2 (not shown), or separate inserts may be provided at each side of the boss.
Patent GB-763721-A (GB)
Title: Improvements in and relating to skull caps
IPC: A61F13/12
Filed: 1951-03-27
Abstract: 763,721. Caps. WEGNER, T. O. Oct. 17, 1952 [March 27, 1951], No. 7104/51. Class 63. [Also in Group VI] A strip of absorbent textile material 2 is secured to the front of the head portion 1 of a surgeon's skull cap. Side portions 3 extend round the head and are secured at the back 4.
Patent GB-1082301-A (GB)
Title: Improvements in or relating to silos
Inventor: KNEE JOHN HEBDEN
IPC: A01F25/20
Filed: 1964-02-20
Abstract: 1,082,301. Screw conveyer discharge for silo. KNEE AGRICULTURAL MACHINERY Ltd. Feb. 12, 1965 [Feb. 20, 1964], No. 7107/64. Heading B8A. Material from silo 1 is discharged at the bottom thereof by screw conveyers 15 which are disposed in casings 3 provided with inlets 5, the screws projecting out of the silo to discharge the material through discharge openings 10 respectively. A single transmission 12 is used to drive each conveyer in turn. Each conveyer screw is made in sections and the screw length is increased progressively by the addition of an extra section so that finally material may be withdrawn from the hole of the respective casing 3. Transmission 12, Fig. 3.-Screw 15 is driven from motor 13 through a transmission which includes a unit comprising shaft 16, bearing 17 and plate 18. Plate 18 is detachable from casing 12 and shaft 16 is detachable at 31 from screw 15 so that transmission and screw may be separated when required. Discharge is at 10 closable by door 27. Operation.-Transmission 12 drives screw 15 as shown in Fig. 1 to withdraw material through holes 5 from silo 1 and discharge it through outlet 10. Tranmission 12 is then detached (see paragraph 2 above) from screw 15 to allow the latter to be withdrawn, an extra screw section to be added and the screw to be reinserted in casing 3 and the transmission 12 to be attached so that more material may be withdrawn from casing 3. This is repeated until the screw is sufficiently long to withdraw materials from all the holes 5 in casing 3. At this stage transmission 12 is detached from the casing shown and the screw and transmission is used in like manner in each of the other casings 3.
Patent GB-1512951-A (GB)
Title: Lighting fittings
IPC: F21Y101/00
Filed: 1975-05-05
Abstract: 1512951 Lamps C M CHURCHOUSE Ltd 5 May 1975 [16 Feb 1974] 7187/74 Heading F4R The housing of a lamp 13 includes a wall 17 in a lower part 11 of light transmitting material and side walls 14 which converge towards the rear of the lamp where there are attachment means 30 for securing the housing in cantilever fashion to a support. In one embodiment, as shown, the side walls 20 of the lower part 11 are also of light transmitting material. The walls 14, 15 define a triangular housing with a sleeve 30 adjacent the rear apex region 21 for reception on a support pole. The top of the housing 16a may be apertured so that the pole extends through the housing. The lower, transmitting part 11 is attached to the upper opaque part 10, e.g. of extruded aluminium, by splayed spring clips 29 engaged in elongate slots in flanges 26. In another embodiment, the side walls are wholly opaque and the bottom wall only is transparent. In another attachment arrangement, the housing rear end is truncated and receives a bolted-on mounting box for attachment to a vertical plane surface (Figs. 5-7, not shown).
Patent GB-371114-A (GB)
Title: Improvements in apparatus for separating dust from air
IPC: B01D46/04
Filed: 1931-03-09
Abstract: 371,114. Air filters. JACKMAN & CO., Ltd., J. W. and NEVILLE, F. W., Vulcan Works, Blackfriars Road, Salford, Lancashire. March 9, 1931, No. 7194. [Class 8 (ii).] A filter unit comprises a flat rectangular bag D on which dust is deposited externally the cleaned air escaping from the interior of the bag by a slotted pipe D<1> leading to a rectangular outlet pipe B<1>. The air enters by a slotted pipe B. The bottoms of the bags are weighted by bars W. A number of bags may be disposed side by side, their bars W being connected by spring-loaded eye-bolts g to a common rail G<1> carried by a lever H which is actuated by a cam to shake the bags. The bags may be stiffened by wires or rods stitched in external pockets. The dust falls into hoppers a<2> and is delivered by hand-operated valves K to bags L.
Patent GB-344226-A (GB)
Title: Improvements in or connected with water leak detectors
IPC: G01H3/00
Filed: 1930-03-05
Abstract: 344,226. Indicating leaks. DAY, H. R., District Council Offices, Axbridge, Somerset, and HAM, BAKER, & CO., Ltd., 70, Victoria Street, London. March 5, 1930, No. 7222. [Class 99 (ii).] In a water leak detector of the type employing a microphone, electric battery, and ear phones, the detector portion comprises a container 2, Figs. 1 and 2, having a flat rigid endplate or diaphragm 2a and containing a microphone 12 yieldably pressed into contact with the diaphragm 2a by a spring 13, the container being connected to a holder 1, or to a flexible electric suspending cable, in a water-tight manner, and being surrounded by a rubber &c. shield or mantle 6 open at the bottom to allow of free access of vibrations to the diaphragm 2a. The holder 1 is secured to a length of flexible tubing 5, which is secured to a rigid tubular staff 7, 8 containing a battery 16 and a switch 11, the upper end being provided with terminals for connection to ear-phones 10. In a modification, the holder is connected in a watertight manner to a length of twin electric cable, which is connected to a portable box fitted with a battery, switch, &c. and with compartments for carrying the detector and ear-phones.
Patent GB-649545-A (GB)
Title: Improvements in the production of photographic emulsions
IPC: G03C1/047
Filed: 1948-03-09
Abstract: A diethyl diacetyl succinate derivative of gelatine is prepared by dissolving gelatine in water, adjusting the pH to 9.5 to 10 with aqueous sodium hydroxide, adding diethyl diacetyl succinate, maintaining the pH at 10 by occasional additions of alkali, and continuing the reaction for 6 hours at 40 DEG  C.  The pH is lowered to 6 to 7 by the addition of dilute sulphuric acid, and the gelatine derivative is chill set, sliced and dried. Specifications 479,239, 568,399, 649,543, 649,544, 649,547 and 649,549 are referred to.
Patent GB-555626-A (GB)
Title: Improvements in pressure gauges
IPC: G01L7/16
Filed: 1942-05-29
Abstract: 555,626. Pressure gauges. FAWCETT, PRESTON & CO., Ltd., and RHODES, A. May 29, 1942, No. 7277. [Class 106 (ii)] Comprises three coaxial and mutually displaceable elements which form a fluid chamber, one element being displaceable in accordance with the pressure in a fluid line, and a second element, having a smaller effective pressure area in the chamber than the first, to give increased movement being connected to an indicator while the third element carries a scale. A cylindrical casing 1 open to the atmosphere at 2 encloses a cylinder 3 having radial perforations 4, the cylinder 3 being open at one end to receive a double piston or ram consisting of outer and inner tubes 5, 6, the tube 5 having a liner 7. A spring 8 is disposed between a collar 9 fixed to the tube 5 and the top end of the cylinder 3, the collar being extended radially to carry an indicating finger 10 sliding through a slot 11 in an outer casing 12 which is adjustably connected by screw and nut means 13 to the inner piston 6. A plug 18 closes the lower end of the cylinder 3 which can be displaced against the influence of the spring 8 by a plunger 14 displaced in a nipple 15. The casing 1 is filled with oil or the same type of fluid as that in the pipe line connected to the nipple 15. In use, pressure from the pipe line acts on the plunger 14 which moves the cylinder 3 against its spring 8 until the perforations 4 are masked by the tube 5 which the rising pressure in the cylinder 3 will be communicated to the hollow piston element 13 driving it upwards in the tube 5 and displacing the sleeve 12 which has a scale which can be read against the index 10.
Patent GB-498281-A (GB)
Title: Improvements in built-up structural members
Inventor: BOYD, GEOFFREY MURRAY
IPC: E04C3/04
Filed: 1938-05-04
Abstract: 498,281. Ship framing. BOYD, G. M. May 4, 1937, Nos. 7370/38, (divided application), 23523/37, and 24182/37. [Classes 113 (i) and 113 (ii)] [Also in Groups XXII and X] In the manufacture of built up structural members from sections of girders &c. severed by cutting along a sinuous line and subsequently welding, an oxyacetylene flame is used for severing at least one of the sections. In Fig. 1 is shown a rolled steel member of I-section severed by a line 5 symmetrical about the axis 8 projecting parts 10 being welded at 11 to form a member with a deeper web than the original and with apertures 12. In using a channel beam one section may be arranged with its flange in a reversed position to the flange of the other section.. By arranging the axis 21 of the line of severance at an angle to the axis of the beam as in Fig. 11 a tapering beam 6, Fig. 12, may be built up after welding at 11. In Figs. 13 and 14 is shown a ship's hatch frame formed from a flanged member 18 and plates 23, 24, the plates being severed along a sinuous line having its axis inclined to the edge of the plates. The section 18 is obtained from an I-beam. Welding takes place at 25 and 11. Flanges 20 also are welded on to the members. In Fig. 15 is shown a ship's hull with double bottom, comprising inner and outer shells 27, 28 spaced apart by transverse plates 29, 291 and longitudinal plates 31. The built up beams are used for hatch beams.
Patent GB-502585-A (GB)
Title: Improvements in sources of light comprising electric discharge lamps
IPC: H01J61/96
Filed: 1938-03-09
Abstract: 502,585. Metal-vapour lamps. GENERAL ELECTRIC CO., Ltd. (Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen) March 9, 1938, No. 7388. [Class 39 (i)] [Also in Group XXXV] A number of high-pressure metal vapour lamps and an incandescent filament are contained in a common envelope, one terminal of each of the lamps and one terminal of the incandescent filament being all connected together and the other terminal of the filament and the lamps being separated from each other, so that the lamps can be supplied with alternating currents displaced in phase relatively to one another, all of which pass through the filament. The common envelope may be coated with phosphorescent material excited by the radiation from the lamps. An arrangement is shown in Fig. 1 comprising an outer envelope 2, coated with phosphorescent material 3 and containing two high-pressure metal vapour lamps 4, 5 inclined in opposite directions at 45‹ to the axis of the envelope and a tungsten filament 6 lying in the axis thereof. The lamps have thermionic electrodes 7 heated by the discharge and starting electrodes 8. The lower end 11 of the filament and the two lower electrodes 7 of the lamps are connected together, while the other electrodes and the other terminal of the filament are connected to separate contacts 10, 12, 13. Fig. 2 shows a circuit arrangement in which the filament contact 10 is connected directly to one terminal of the A.C. supply, the contact 12 of one lamp to the other terminal of the supply through a choke 15 and the contact 13 to the same supply terminal through a condenser 16 and choke 17. The contacts 10 and 12 may be connected through a condenser 18. The impedance of the choke 17 is preferably less, but only slightly less, than the impedance of the condenser 16, and 'the condenser 18 is so adjusted that the discharge through the lamps 4 and 5 are approximately equal. In a modification, the choke 17 may be formed as part of the choke 15. The discharge lamps may have a common discharge envelope.
Patent GB-1151837-A (GB)
Title: Temperature Sensor Assemblies.
IPC: G01K1/14
Filed: 1968-02-15
Abstract: 1,151,837. Thermometers. GENERAL MOTORS CORP. Feb.15, 1968 [May 18, 1967], No.7394/68. Heading G1D. [Also in Division H1] An assembly for measuring the turbine inlet temperature in a gas turbine engine i.e. the gases flowing in a duct 7 towards vanes 5, the duct 7 being surrounded by a space 17 containing cooling air at a pressure in excess of that in the duct 7, comprises a hollow body 15 having an inlet 27 and outlet 29 for gases in the duct 7 so that the gases pass over a thermocouple disposed in the body 15, the body 15 also having a conduit 31 to allow cooling of the body by means of air from the space 17 which enters an inlet 33 and leaves by way of an outlet 34. The thermocouple is of a double type having two junctions 20, ends with two wires 21, 22 supported by a ceramic body 23. The conduit 31 is disposed in the body 15 such that air from the space 17 cools those parts of the body which are directly exposed to the gas stream in the duct 7.
Patent GB-1069199-A (GB)
Title: Improvements in means for starting gas turbine engines
Inventor: SNELL LEONARD STANLEY
IPC: F02C7/27
Filed: 1965-02-20
Abstract: 1,069,199. Gas turbine engines - starting. BRISTOL SIDDELEY ENGINES Ltd. Feb.16, 1966 [Feb. 20, 1965], No.7421/65. Headings F1G and F1T. The invention relates to a means for starting a gas turbine engine by impingement of a jet or jets of fluid on to part of a rotor of the engine so as to produce rotation thereof until the engine becomes self-sustaining in operation. In the embodiment shown the blades 3 of the turbine rotor 2 are provided with tip shrouding 4 and radially-outwardly extending projections 5 are provided on the outer surface of the shrouding. The turbine casing 7 is formed with an annular chamber 12 to which fluid under pressure, for example air is supplied through duct 14. A series of nozzles 10 extend through the casing from the chamber 12 towards the projections 5 on the blade shrouding whereby at starting, jets of air under pressure are caused to impinge on the projections 5 to cause the rotor to rotate. The projections 5 are formed with a concave surface so as to form a fluid impingement surface. The shroud ring may be in the form of separate shroud elements one for each blade or one for a group of blades, or a continuous member for the whole ring of blades.
Patent GB-235118-A (GB)
Title: Improvements in or relating to watch wristlets
IPC: A44C5/22
Filed: 1925-03-19
Abstract: 235,118. Wilsdorf, H. March 19, 1925. Cases, watch. - A watch is attached to the wrist by a wristlet d adapted to be fastened in two different sizes by a fastening member e carried on the free end of the wristlet adapted to engage in two similar members m adjustable along the wristlet.
Patent GB-643808-A (GB)
Title: Improvements in or relating to fluid blast electric circuit interrupters
IPC: C08K5/13
Filed: 1948-03-11
Abstract: 643,808. Fluid-blast switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 11, 1948, No. 7462. Convention date, April 16, 1947. Addition to 600,733. [Class 38(v)] The fluid-blast circuit-breaker of the parent Specification is modified in that the time delay in the operation of the auxiliary fluid-blast producing device is produced by the valve action of movable contacts 9, 45, in orifices 148, 147, respectively. When the conducting bridging member 7 is moved downwards, the operating rod 22, which is screwed to the member 51 bearing on the member 7, moves down under the action of springs 67 to move contact 45 downwards. Owing, however, to a lost. motion connection between the rod 22 and the contact 9, the latter is initially moved downwardly by springs 36 to maintain engagement between contacts 9, 44 until the lower end of a sleeve 30, rigid with the rod 22, engages the head 33 of a pin 32 to which is pivoted a lever 15 forming part of a parallel-motion linkage 12-18, connected to the contact 9. A second parallel-motion linkage 52-55 and 57 interconnects the member 51 and the contact 45, there being a lost-motion between a pin 61 on the linkage and a slot 84 in a sleeve 83 integral with the piston 81, which moves down under the action of springs 89 and then only when interrupting low currents. The blast passes from the piston chamber 82 to a chamber 96 through orifices 95, and then upwardly in passages 117 and radially inwards to the pressuregenerating arc 63 through inlets 116. It then passes through orifices 147 and vents 125 into passages 126, and so to the interrupting arc 48 through inlets 131, exhausting through orifices 148 and vents 137. The piston chamber 82 is provided with a normally-open valve 106 which closes on downward movement of the piston, the time taken to close the valve also providing a delay. Alternatively, a lost-motion between the contact 45 and the piston may be provided, Fig. 10, (not shown), in which case the valve 106 is normally-closed.
Patent GB-354776-A (GB)
Title: Improvements in or relating to devices for removing grease or other spots from clothes or other fabrics
IPC: D06F43/00
Filed: 1930-03-08
Abstract: 354,776. Tubular &c. holders for liquids. GREEN, T. W., 149, High Road, Woodford Green, Essex. March 8, 1930, No. 7635. [Class 19.] A holder .for liquid for medical, toilet, and perfuming purposes, or for removing grease from clothes or fabrics &c., comprises a tubular or other container a against which a felt or other absorbent pad c is pressed by a screw b having threads of smaller diameter than those in the portion a<1> so that on inclining the device and withdrawing the tightly fitting cap e liquid flows to the pad. A groove b<1> across the threads may also be provided to assist the flow. The container may be fitted with 2 outlets and pads, or it may be divided into 2 compartments for different liquids. The pad may be secured by wires to the outer face of the screw head, holes being formed through the head for the passage of the liquid. The cap may be provided with a clip for the pocket. Liquids specified are petrol, benzine, ammonia, and iodine.
Patent GB-1328059-A (GB)
Title: Heat exchangers
IPC: F28D7/16
Filed: 1972-02-18
Abstract: 1328059 Gas coolers SANNE & WENDEL AS 18 Feb 1972 [23 Feb 1971] 7684/72 Heading F4S In a heat exchanger for cooling air incorporating a plurality of cooling sections 1 removably mounted in a housing 2, the sections are connected in pairs 1, 1<SP>1</SP> at one end by return bends 6, each section comprising a plurality of finned tubes extending between tube plates 18 provided with header covers 9. The sections 1 extend between opposed openings 4 and 5 in the housing, these openings being closed in fluid tight manner by means of cover members 7 and 16 which are bolted to the housing through frame members 30. The headers include connector portions 8 which extend through openings 10 and 15 in the cover members in sealing relationship, 0-rings being provided for this purpose. Cooling medium enters and leaves the cooling sections through elbows 22 connected to supply and discharge manifolds 13 and 14 and to the portions 8. The cover member 16 is divided into sections 17 to facilitate easy replacement of individual or pairs of cooling sections which are mounted in the housing so as to have one end axially movable to allow for expansion and contraction.
Patent GB-622415-A (GB)
Title: Improvements in and relating to multi-stage compressors, pumps, turbines, or similar rotary machines or engines
IPC: F04D29/32
Filed: 1947-03-20
Abstract: 622,415. Turbines; compressors. JAKOBSEN, J. K. March 20, 1947, No. 7745. [Classes 110(i) and 110(iii)] In a turbine or compressor, the normal ring of blades, in rotor, or stator, or both, is replaced by two or more rings of blades with the blades of each ring staggered in relation to the blades of the adjacent ring and with no separation between the rings in the general flow direction. The Specification gives a number of desirable relations between blade and flow angles.
Patent GB-485504-A (GB)
Title: Improvements in or relating to insulating materials and apparatus for the manufacture thereof
IPC: C04B28/04
Filed: 1937-03-17
Abstract: 485,504. Moulding plastic compositions containing vermiculite. BRITISH ZONOLITE PRODUCTS, Ltd. (Schundler & Co., Inc., F. E.) March 17, 1937, No. 7848. [Classes 22, 70, and 87 (ii)] Insulating slabs are produced by mixing a cementitions slurry containing granules and laminae of vermiculite and a small percentage of fibre, placing the slurry into a mould having at least one perforated face, separating liquid from the slurry by passing it through the perforations, and finally removing the slab. The fibre constituent is preferably asbestos and the cement may be Portland cement or magnesium oxy-sulphate cement. One example of a suitable mixture comprises 100 parts of vermiculite, 45 parts of Portland cement, and 18 parts of asbestos fibre, all by weight. Another mixture comprises 25 lb. of vermiculite 2 lb. of long fibre asbestos, 4 to 8 1b. of active magnesium oxide and sufficient magnesium sulphate solution to produce a sloppy consistency. The mould 13 has a perforated bottom 14 covered by a screen cloth' 15. The mould is dipped into the slurry and suction is applied through pipe 17 to draw material into the mould and remove liquid. The formed slab is discharged by air pressure through the pipe 18. Trunnions 20 are provided on the mould so that it may be inverted if necessary. In a modification, Fig. 4, the mould 23 stands on a suction box 26 on a gasket 28. After the liquid has been removed the mould 23 is inverted to deliver the slab. Instead of suction, air or mechanical pressure may be applied to dewater the slab. When making pipe coverings the mould is of semi-cylindrical shape. The slab may be finally dried at a temperature of 400 to 600‹ F. preferably after being air cured for 24 to 48 hours. Specification 485,505 is referred to.
Patent GB-1240391-A (GB)
Title: Improvements in or relating to hand grinding machines
IPC: B24B23/02
Filed: 1969-02-13
Abstract: 1,240,391. Grinding. BAHCO A.B. 13 Feb., 1969 [20 Feb., 1968], No. 7897/69. Heading B3D. [Also in Division F1] A hand grinding machine comprises a motor 1 driven by air under pressure and a grinding wheel 5 rotated by the motor and partly surrounded about its periphery by a dust shield 7, the dust shield consisting of outer and inner walls 8, 9 which between them form a chamber 10 connected by one or more supply passages to the air outlet of the motor, and having one or more outlet openings stiuated at the periphery of the grinding wheel and serving to direct outgoing air away from the motor side of the machine substantially parallel to the axis of rotation of the grinding wheel, whereby air leaving the motor is led away via the chamber. The provision of the chamber 10 is stated to reduce noise. Air exhausting from the motor flows through the space 2 between the shaft 3 and casing 4 and then through an opening 11 in the casing 4 and in a connector 12 into the chamber 10. The axially extending part of the inner wall 9 is corrugated to form with the axially extending part of the outer wall 8 outlet passages 14; alternatively a continuous gap extends between the parts.