baber/WOPTO huggingface dataset:
Patent GB-750152-A (GB)
Title: An improved valve for use in controlling human respiration
IPC: A61M16/20
Filed: 1953-03-10
Abstract: 750,152. Respiratory appliances. BLEASE, J. H. March 10, 1954 [March 10, 1953; July 28, 1953], Nos. 6616/53 and 20951/53. Class 81(2). [Also in Group XXIX] A valve device for use when supplying air or gas to a face mask allows air to flow freely to the mask on the application of pressure but, on the cessation of pressure, permits unimpeded exhalation to atmosphere. A flexible diaphragm 6 carries a light flap valve 13 at its centre and, when flexed, engages a resilient annular stop 16 at one side or a rim 8 at the other. When air is supplied under pressure through tube 2, the diaphragm 6 moves to the right against the rim 8, to seal the gap, and valve 13 opens to allow air to pass to the patient through tube 1. On the cessation of pressure the natural resilience of the diaphragm 6 and flap 13 returns the diaphragm to its central position and closes the valve, while, at the same time, a free passage is opened to atmosphere around rim 8 and through apertures 9, 9. In a modified form of the central valve the diaphragm carries a perforated cylinder, the left-hand end of which carries a disc valve, normally closed by a spring accommodated within the cylinder.
Patent GB-512441-A (GB)
Title: Improvements in liquid level gauges
IPC: F24C5/18
Filed: 1938-03-03
Abstract: 512,441. Indicating liquid-levels. AKTIEBOLAGET RADIUS. March 3, 1938, No. 6732. Convention date, March 4, 1937. [Class 123 (i)] In a liquid-level gauge intended particularly for indicating the oil level in a fuel reservoir, a double-armed float lever 3 is pivoted to a lug 6 carried by an indicator disc 5 formed with a slot through which projects the outer end of the float lever. The angular position of the gauge in the supporting collar 2 is determined by a recess formed in the inner surface of the collar to engage the upper portion of the lug 6.
Patent GB-865485-A (GB)
Title: Improvements in or relating to the treatment of slurries
IPC: B03B9/00
Filed: 1959-02-26
Abstract: 865,485. Gravity-separation apparatus. WILSON, J. N. Feb. 26, 1959, No. 6746/59. Class 46. [Also in Group II] Granular material flows from suspension in a liquid in a vessel 1 through an outlet 4 to be re-suspended in a different liquid forced along a conduit 6 by a pump 7. The second liquid is maintained by a valve 9 at such pressure in the conduit 5, 6 as to balance the head of liquid in the vessel 1 and substantially prevent flow of liquid therebetween, whilst permitting discharge of solid material through the outlet 4 for entrainment in the second liquid. Slurry from conduit 6 may be received in a reaction vessel or conditioner 11 from which it overflows at 12 on to a rake classifier 13, concentrated solid being discharged at the upper end whilst liquid overflows at 14 into the sump 8 of the pump 7. In Fig. 2, (not shown), a cylindrical portion is inserted between outlet 4 and cone 1, a washing or other liquid being introduced at the lower end and withdrawn from the upper end of the cylindrical portion. In the bleaching of felspathic sand, a suspension of the sand in dilute sulphuric acid is passed into cone 1, and the sand is discharged into the second circuit 5, 6, 11, 8, 7 along which passes sodium carbonate solution (0.25%). Optionally, it may be washed by water passed through the cylindrical portion of Fig. 2 (not shown) before passing into the second circuit. The pressure in the said cylindrical portion may be regulated so as to permit a controlled flow of liquid into it from vessel 1 or conduit 6 or both, or a similar controlled flow out of it. Sand may be passed from a liquor based on white spirit into a liquid based on water.
Patent GB-873076-A (GB)
Title: Improvements in or relating to curtain pelmets
IPC: A47H5/032
Filed: 1958-03-04
Abstract: 873,076. Suspending curtains. HARRISON, E. DU G. March 4, 1958, No. 6900/58. Class 52(5). A frame 18 detachably secured transversely of an L-section pelmet 10 forms an end-supportbracket for the pelmet and has direction-changing pulleys 24 mounted thereon. Flanges 16 of spaced tray-like frames 18 are secured by wood screws 20 to the pelmet and apertured mounting lugs 12 are pivoted to the flanges 16, pelmet edge being recessed at 19 to allow pivotal movement of the lugs to compensate for inaccuracy in the placing of mounting screws let into the wall 15. The pulleys which project through slots 36 in the frames are mounted on pins journalled in brackets 30 secured to the base 34 of the frame, or in tongues bent up from the base, and wires 38 supporting curtain-carrying rings 40 are rigidly anchored at one side to the frame and are tensioned by engagement of a hook 42 in a threaded bore in the frame at the other end of the pelmet.
Patent GB-757490-A (GB)
Title: Improvements in or relating to electric cables and wave-guides
IPC: H01P3/18
Filed: 1953-03-14
Abstract: 757,490. Waveguides. HYDE, G. A. M. March 2, 1954 [March 14, 1953], No. 7102/53. Class 40 (8). A composite electrical medium for the propagation of electromagnetic waves consists of conducting and dielectric elements arranged to be anisotropic in conductivity so that the medium has a greater conductivity along its length than in a direction perpendicular to its length the electrical constants of the constituents being so chosen that the permeance of the medium is substantially equal to the quotient of its permittence in the direction of its length divided by the square of the conductance in the direction of its length. The permeance and permittance are the so-called permeability and permittivity of the M.K.S. system and are referred to one meter cube of material. The Specification contains a detailed mathematical analysis of the invention and figures are given for the attenuation of a typical cable of which the dimensions and relevant electrical constants are given. The composite anisotropic medium may be placed within a medium having the same impedance and velocity of propagation as the anisotropic medium. The cable may consist of a central dielectric core 4 of e.g. polythene upon which is evaporated a film 3 of bismuth of about 100 Angstroms thickness. A suitable conducting coating may also be obtained by spraying or dipping with a paint mixture containing colloidal graphite, although such a coating will be much thicker than 100 Angstroms. In order to fulfil the necessary criteria as regards permeance and permittance the conductive layer is arranged to have a resistance of <SP>30</SP>/ #2À3  ohms per every a/2 cms. of its length where a is the radius of the core 4 and 2.3 is taken as the dielectric constant of polythene. The conductive layer is surrounded by a layer 2 of material having the same dielectric constant as the core 4 the layer having an outer radius b such that 2 loge b/a = 1. The outer layer 2 is surrounded by a sheath 1 of conductive material. The Specification also gives the relative dimensions of a waveguide according to the invention having several similar conductive layers separated by layers of dielectric of much greater thickness. It is shown also that the same results can be achieved with conductive layers which are of substantial thickness compared to the dielectric layers and an example, with relative dimensions, of such a cable is given in the Specification. Specification 715,359 is referred to.
Patent GB-598559-A (GB)
Title: Improvements in or relating to fluid heater cleaners
IPC: F28G3/16
Filed: 1945-03-21
Abstract: 598,559. Sootblowers. BABCOCK & WILCOX, Ltd., HANDOLL, P. G., and BETTLE, P. R. March 21, 1945, No. 7134. Addition to 570,902. [Class 99 (ii)] A soot-blower according to the parent Specification in which a blower tube 38 has a lateral discharge and is rotated and slewed to traverse the discharge in two directions, the tube being rotatably mounted in a carriage 15 pivoted by trunnions 12 in a bracket 6, is provided with means (a) for setting the carriage relatively to the bracket in any one of a number of positions, (b) for limiting rotation of tube and carriage, and (c) for locking the tube to the carriage by rotatable means operated from the tube manipulating station. Spring-urged plungers 24 are mounted in the side walls 10, 11 of the bracket so as to engage toothed segments 25 on the carriage. The teeth of one segment are staggered in respect to those of the other. For limiting its movement the carriage has a pin 18 engaging an interchangeable slotted. plate 21 secured to the bracket wall 11. For limiting its rotation the blower tube has an arm 47 engaging stops formed by plates 65 secured to the bracket. The plates are so shaped as to reduce the range as the blower nozzle is lowered. The blower tube carries a sleeve 39 having at one end an operating handle 40 and at the other a locking plate 41 and is adapted for transference from one station to another, each station having a bracket and carriage and a sliding door 8. The tube, arm 47 and boss 42 of the locking plate are introduced through an opening 48 in the carriage, and the sleeve is rotated so that chamfered corners 51 of the locking plate engage beneath bars 50 on the carriage. The blower tube is manipulated by a tubular handle 62 which is connected by a hose pipe to the cleaning fluid supply.
Patent GB-1466876-A (GB)
Title: Vibration dampers
IPC: F16F13/08
Filed: 1974-02-18
Abstract: 1466876 Hydraulic dampers A L PINEAU 18 Feb 1974 [19 Feb 1973] 7354/74 Heading F2S An hydraulic damper comprises a hollow cylinder 1, closed by a plate 8, a rod 7 movable with respect to the cylinder, a diaphragm 4 of elastomeric material attached to the rod and also forming a lining for the cylinder, and a viscous liquid in the cylinder, part 5 of the diaphragm being of reduced thickness and spaced from the cylinder wall to form a chamber 6 which compensates for changes in volume of the liquid chamber. A further diaphragm 9 encloses a gas chamber 11. The chambers 6 and 11 may be closed as shown, or open to atmosphere (Fig. 3, not shown). The diaphragm 9 and chamber 11 may be omitted (Fig. 1 not shown) or replaced by a cellular body (9a, Fig. 4, not shown) with closed cells. The chamber 6 may be in a different position (Figs. 5 and 6, not shown).
Patent GB-662176-A (GB)
Title: Improvements in or relating to mechanically operated cartridge feed apparatus for machine guns
Inventor: GREEN SPENCER
IPC: F41A9/29
Filed: 1949-03-17
Abstract: 662,176. Cartridge feed mechanism for machine guns. BRISTOL AEROPLANE CO., Ltd. March 8, 1950. [March 17, 1949] No. 7382/49. Class 92 (ii). Relates to cartridge feed mechanism for machine guns of the type in which ammunition is fed to a main feed apparatus, mounted on the gun for movement in elevation therewith, from a distant supply by an auxiliary feed apparatus which is operated by gun recoil and which, as a whole, does not partake of gun elevation. According to the invention, the auxiliary feed mechanism has one part which moves in elevation with the gun, and the other part being on a fixed structure, the two parts being connected by an element slidable on the trunnion axis of the gun so that the auxiliary feed functions at all angles of gun elevation. In the form shown, the main feed of separated rounds to the gun 5 is bv a chute 6 the entrance to which is on the trunnion axis 8. The actuation is effected through racks 14, 15 by linkage 37, 40 connected to an arm 22 on the gun loading tray moved by gun recoil. The auxiliary feed moves the rounds from a distant supply, such as the lowermost tray 7 of a feed box, on to the supports 10 of an elevator 9 which feeds the entrance to the main chute 6. The transmission from arm 22 is by linkage 23, 24 moving in elevation with the gun, and by linkage 27, 28, 29 unaffected by gun elevation, the two linkages being connected by striker forks 32 enagaging a sleeve 25 slidable on an extension 26 of the gun trunnion. The arrangement is such that during the gun recoil a spring barrel 17 is wound up and during run-out a release mechanism 18 is actuated to permit the spring to drive the shaft 16 of elevator 9. The release mechanism holds the shaft 16 against rotation by the spring until a shaft 20 is rotated. This shaft connects with link 28 and through arm 41. actuates the feed rack 12 of the tray 7. The invention is applicable to feeding belted ammunition.
Patent GB-845716-A (GB)
Title: A machine for assembling veneers
IPC: B27D1/10
Filed: 1957-03-06
Abstract: 845,716. Assembling veneers. FRIZ G.m.b.H., A. March 6, 1957 [April 17, 1956], No. 7382/57. Class 42 (1). In a veneer assembling-machine the veneer sheets are passed in their longitudinal direction between a pressure roll 5 and a driven chain 2 and are joined together by a strip 14 of adhesive paper, the sheets being removed from the machine by a roll 8 which is driven by a chain 7 from the roll 5. Rollers 9, 9<SP>1</SP> mounted on a pivoted arm 91 actuate a switch 10 as the sheets leave the machine to energize a solenoid 11 connected to a pivoted knife 12 for severing the strip 14.
Patent GB-286732-A (GB)
Title: An improved method of producing moulded articles, such as sheets and the like, suitable as insulating material for electro-technical purposes, from filling materials andartificial resin
IPC: C08G14/04
Filed: 1928-03-09
Abstract: 286,732. Schieferwerke Ausdauer Akt.-Ges. March 10, 1927, [Convention date]. Moulding gums and resins.-A process for forming sheets and articles of insulating material consists in cold pressing at a very high pressure a composition comprising a filling material and a viscous artificial resin obtained, as described in Specification 286,731, [Class 2 (iii), Dyes &c.], from a mixture of phenol, paradichlorobenzene and formaldehyde, in the presence of a mixture of common salt, ammonium chloride, and hexamethylene tetramine, by heating to boiling point, separating from the water formed, freeing from volatile vapours, and washing with water. The cold pressed sheets and articles are subsequently hardened by heat. In an example, powdered shale is mixed with one-sixth of its weight of the artificial resin, and the composition is pressed cold in plate moulds at about 500-700 kgs. per sq. cm. pressure. The resulting sheets are fixed in adjustable frames, placed between porous stone slabs, and heated for from two to three hours, the temperature being gradually raised to about 80‹ C.
Patent GB-451520-A (GB)
Title: Improvements in or relating to variable pitch airscrews for aircraft
IPC: B64C11/30
Filed: 1935-03-09
Abstract: 451,520. Screw propellers. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and OWNER, F. M., Filton House, Bristol. March 9, 1935, No. 7438. [Class 114] [See also Group XXXV] In a variable-pitch air screw the control mechanism is actuated automatically in accordance with the engine speed, the controlling means being either an electrical or a centrifugal mechanism which functions also as an engine-speed indicator. The speed-indicator has an armature 10 connected to a generator 13 driven by the aircraft engine and has a resistance 14 included in the circuit so that the deflection of the armature corresponds to the engine speed. There is fitted on the armature spindle 15 a disc 16 carrying two conducting strips 17, 18 cooperating with the brushes 19, 20, in a circuit which is part of the blade actuating mechanism. The disc 16 also carries a pointer 21 movable over a scale 22 indicating engine revolutions per minute and there is a further pointer 24 carried by a sleeve 23. The outer end of the spindle 15 is surrounded by the sleeve 23 which has a knob 25 whereby it may be adjusted so that the tail of the pointer 24 which carries a third brush 26 may also co-operate with the contacts 17, 18, The brushes 19, 20 and 26 are connected to a relay 29 which is on the input side of the battery 30. This relay may operate the piston of a hydraulic control mechanism or where the pitch changing mechanism is electrical will operate a relay. In a modification, a centrifugal governor 31 is driven by the engine and its spindle carries the disc 33 of insulating material, but with a conducting rim 34. The brush 35 is connected by a lead 36 to a source of electric current and mounted adjacent to the governor are a pair of arms 37, 38 carrying conductors 44, 45 in the relay circuit 46. The arms are held under spring restraint 42, 43 upon a rod having a rack-and-pinion gearing with a pointer 51. The pointer is further connected by gearing with a screw and nut mechanism 47, 48 upon the governor spindle. Changes in speed are followed by contact of the rim 34 with the brushes 44, 45 and a subsequent adjustment of the pitch of the blades. Specifications 151,917, and 250,292, [both in Class 114], and 411,601 are referred to.
Patent GB-346120-A (GB)
Title: An improved jig for use in fitting piston rings in the pistons and cylinders of reciprocating engines
IPC: B25B27/12
Filed: 1930-03-07
Abstract: 346,120. Jigs for filing piston rings. BONEHAM, J., Duke Street Engineering Works, Mansfield, Nottinghamshire. March 7, 1930, No. 7440. [Class 83 (iii).] A jig for filing the ends of piston rings to the same angle comprises a m a i n plate A having a gap B forming an inclined surface B<1> which serves as a guide for a file which is used to true the end of a ring J mounted between the plate A and a second plate C which is secured by screws E to the plate A and is provided with a surface C<1> in line with the guide surface B<1>. The device may, as shown, be constructed in duplicate so that the rings may be bevelled in either direction, a second gap K being provided in the main plate for this purpose. The plates are separated by distance pieces having inclined upper surfaces D<1>, and the ring is supported on one of these surfaces and clamped by screws H and clamping plate G. The other end of the ring is supported on an inclined surface F<1> of a member F secured to the plate A. When one end of the ring is completed the ring is reversed in the jig and the opposite end trued up. The device may be fitted with a hexagonal stud N for mounting in a vice.
Patent GB-211724-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/22
Filed: 1923-09-14
Abstract: 211,724. Fairweather, D. K., (Bonar, J.). Sept. 14, 1923. Tobacco pipes.-The stem of a pipe having an inner detachable bowl 2 is fitted with a mouthpiece receiving tube 7 which communicates with the annular space 3 round the inner bowl by means of a vertical tubulure 3. The annular space 3 acts as a moisture trap, the end 8 of the tube 7 being closed.
Patent GB-1028330-A (GB)
Title: Method for forming foundry cores and moulds
IPC: B22C1/18
Filed: 1964-02-24
Abstract: 1,028,330. Mould and core materials. INDUSTRIA CHIMICA CARLO LAVIOSA, S.p.A. Feb. 24, 1964 [Dec. 12, 1963], No. 7534/64. Heading B3F. A self-setting mould or core material comprises sand, sodium silicate, water, and metallic silicon or alloys thereof such as ferro-, calcium- or manganese-silicon.
Patent GB-100593-A (GB)
Title: Improvements in or relating to Radiators for Motor-cars.
Inventor: ANDERSON LOUIS NICOLAS
IPC: F28D1/03
Filed: 1916-05-29
Abstract: 100,593. Anderson, L. N. May 29, 1915, [Convention date]. Plate apparatus. -Motor-car radiators are built up of elements a, b spaced apart to form water channels and provided with a series of lateral right-angled bends with diagonal corners, forming three sides of air spaces c, the fourth sides being constituted by adjacent elements. The plates a, bare connected together at the front and back, as shown in Fig. 3, and adjacent elements are connected together by seamed joints at the top and bottom, as shown in Fig. 1. The diagonal portions may contact only at the ends, so as to form inclined connecting air passages e between the contacting portions, as shown in Fig. 6. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a staggered or diagonal arrangement of the elements in a radiator. This subject-matter does not appear in the Specification as accepted.
Patent GB-418795-A (GB)
Title: Improvements in or relating to hair curlers
IPC: A45D2/24
Filed: 1934-03-09
Abstract: 418,795. Hair-curling appliances. BEDWELL, R. G., 48, Golden Lane, Barbican, London. March 9, 1934, No. 7587. [Class 131.] A hair-curling appliance comprises two perforated sheet metal elements a, b hinged together at c, the one element being of tubular form and the other of partially tubular form, and a loop of elastic cord g provided with a plug h adapted to engage within the open end of the tubular element a. The elements a, bare normally held closed by a spring d, and are provided with finger grips e. In use, the tress is gripped between and then wound around the elements a, b, the wound tress being retained in position by the cord g, which extends along both sides thereof.
Patent GB-372021-A (GB)
Title: Improvements relating to fluid compressors
IPC: F04B39/06
Filed: 1931-03-12
Abstract: 372,021. Cooling compressor valves. TOMLINSON, A. V., 65, Victoria Street, London.-(Westinghouse Air Brake Co. ; Wilmerding, Pennsylvania, U.S.A.) March 12, 1931, No. 7633. [Classes 8 (i) and 102 (ii).] The discharge valves of compressors are cooled by a circulation of liquid outside the compressors. The compressor 11 and its motor 10 are mounted on a tank 1 in which a suitable liquid level is maintained by a valved overflow pipe 8, or a trap &c. Its discharge valve 26 is a thin disc held down by a spring 30, and limited in its lift by an extension 29 of a plug 27. Air is discharged from the valve chamber to the pipe 31 leading into the tank wherein it is provided with a water eduction valve 58 and a loaded byepass valve 60. Water is drawn in through the valve 58 and forced into a chamber 35 in the cylinder head, cooling the valve chamber. A wall 40 separates the water from the air, which passes back to the tank ; the water is forced through passages 41 controlled by a check valve 43 into the discharge valve chamber and back to the pipe 31. The air inlet valve 15 is a sleeve operated by friction of the piston and having a resilient seat 18. A hole 401 in the wall 40 allows water to drain into the tank when the compressor is not working. The byepass valve 60 comes into operation when the tank water is frozen. In modifications, (1) water is supplied to the discharge valve chamber from an external source and is removed from the system by a float-controlled valve; (2) a water pump actuated from the crank shaft circulates the water through the discharge valve chamber and the tank ; (3) several cylinders are arranged with a common head containing valves as shown in Fig. 1, and the discharge from a single one of the cylinders circulates the water through the head around all the valves. In the pipe leading to the tank, (1) an expansion chamber may be provided for the air ; (2) the valves 58, 60 are replaced by simple ports.
Patent GB-357101-A (GB)
Title: Improvements relating to the manufacture of stoppers
IPC: B27J5/00
Filed: 1930-03-10
Abstract: 357,101. Cutting cork stoppers. SOC. FRANÃAISE DE LA MACHINE A FABRIQUER LES BOUCHONS CONIQUES ET CYLINDRIQUES, 33, Rue d'Ingres, Montauban, Tarn-et-Garonne, France. March 10, 1930, No. 7686. Convention date, March 13, 1929. Void [Published under Sect. 91 of the Acts]. [Class 83 (iii).] Drilling-machines; cutters.-An expanding annular cutter for producing tapered or cylindrical cork stoppers comprises a tapered tubular guide 1 attached to a rotary spindle 2 and provided with axial slots 5, 6 for slidably receiving guide pins 7, 8 attached to hollow semiconical cutters 3, 4. A disc 11, slidable on splines 12 on the spindle 2, is connected by pivoted rods 10 to the guide pins to cause the cutters to be fed axially within the guide 1 to cut tapered stoppers. The cutters are also guided by pins 14 and an ejector plug la attached to the end of the spindle ejects the finished stopper as the cutters are withdrawn into the guide. For cutting cylindrical stoppers the plug is replaced by a slotted sleeve having a conical exterior to fit the guide 1 and a cylindrical interior to guide cylindrical cutters. The disc 11 may be controlled by a bifurcated lever and a pedal, and the cutter may be adapted to different diameters by the use of tapered liners of graduated thicknesses inserted within the guide 1.