baber/WOPTO huggingface dataset:
Patent GB-1495911-A (GB)
Title: Breathing apparatus in particular for aircraft crew
IPC: A62B7/04
Filed: 1976-01-23
Abstract: 1495911 Breathing apparatus BENDIX CORP 23 Jan 1976 [19 Feb 1975] 02700/76 Heading A5T [Also in Divisions F2 and G3] An open-cycle respiratory apparatus comprises an exhalation valve 92 that includes a diaphragm 140 responsive to the breathing gas pressure in mask 14 via chamber 134 and the pressure in control chamber 142. A control valve 106 connects the mask pressure to the control chamber 142 via lines 84, 98, 96 during inhalation to maintain exhalation valve vent ports 136 closed by the diaphragm 140. During exhalation the control valve 106 opens to vent the control chamber 142 via a side port of chamber 88 and cause the diaphragm 140 to rise and allow the mask to be vented via ports 136. A main spring biassed diaphragm 18 controls the overall gas flow from cylinder 10. Respiratory gas is passed from the cylinder 10 to duct 52, 68 to cause diaphragm 50 to rise and admit the gas to the mask via ducts 70. filter 72 and tubing 74. The gas also acts upon the upper surface of the diaphragm 50 via restriction 60 and eventually causes it to close against duct 68. The mask is then placed on the face. During inhalation pressure is reduced in housing chamber 24 via tubing 84 and the main diaphragm 18 moves to cause knob 42 to pivot lever 44 and valve 82 away from duct 62. The reduced pressure in duct 62 then allows diaphragm 50 to open and gas to be inhaled. The increased pressure in the mask acts upon the control chamber 142 to maintain diaphragm 140 closed and eventually causes main diaphragm 18 to move back and allow valve 82 to close. Gas supply is then cut off by descent of diaphragm 50. If the mask pressure rises unduly valve 106 opens against its bias to vent via chamber 88. During exhalation the increased pressure resulting in chamber 24 causes knob 42 to actuate linkage 118, 102 to open valve 106 to vent the control chamber 142 and thus the mask. The pressure in chamber is thus reduced and valve 106 is re-seated.
Patent GB-1178056-A (GB)
Title: Improvements in or relating to Rosin Size Compositions
IPC: C08F8/44
Filed: 1967-01-18
Abstract: 1,178,056. Rosin sizes containing olefin copolymers. TENNECO CHEMICALS, Inc. 18 Jan., 1967 [19 Jan., 1966], No. 2758/67. Headings C3P and C3R. [Also in Divisions C4 and D2] A rosin size composition comprises (a) a rosin salt component comprising an alkali metal salt of a rosin acid and up to 30%, based on the weight of the rosin acid originally present in the rosin, of a free rosin acid, and (b) from 0-1 to 15%, based on the weight of the rosin salt component, of a copolymer which contains (i) units having the structure (ii) units having the structure and (iii) units having the structure -C n H 2n -, wherein R represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, M represents an alkali metal atom or an ammonium group, and n represents an integer in the range of 2 to 6, said copolymer containing from 2 to 20 of said units (i) and from 2 to 20 of said units (ii) and a total of not more than 25 of said units (i) and (ii) per 100 of said units (iii). Specified rosin salts include those of fortified rosins obtained by reacting a rosin with formaldehyde, acrylic acid, maleic anhydride or fumaric, itaconic or citraconic acid. The copolymer may be a terpolymer of an olefin, an acrylic acid or ester, and an acrylamide which has been reacted with an alkali metal or ammonium hydroxide or carbonate, or a copolymer of an olefin and an acrylic ester, which has been reacted with ammonia or an amide prior to hydrolysis. In Example 1, a solution of tall oil resin fortified by reaction with formaldehyde and fumaric acid prior to being treated with NaCI, KOH and NaOH is mixed with an emulsion of an ethylene-acrylic acid-acrylamide terpolymer treated with NaOH and the mixture is treated with KOH. The sizes prepared in Examples 2 and 3 contain the said terpolymer and the sodium salt of tall oil pitch or of a mixture of rosin fortified with formaldehyde and a wood resin fraction, or a salt of an unfortified tall oil resin. The sizes are used in paper-making (see Division D1/D2).
Patent GB-923536-A (GB)
Title: Improvements in or relating to magnetic amplifiers
Inventor: PERCIVAL NIGEL PORTER
IPC: H03F9/04
Filed: 1961-01-24
Abstract: 923,536. Magnetic amplifiers. ENGLISH ELECTRIC CO. Ltd. Jan. 16, 1962 [Jan. 24, 1961], No. 2770/61. Class 40 (9). An auto-self-excited bridge rectifying transductor comprising main windings 5 and rectifiers 22-25 controls a relay 27 in accordance with the frequency of the energizing A.C. supply at terminals 20, 21 and the rate of change of such frequency. The transductor has a positive feed-back winding 4 to give a bi-stable operating characteristic, and is biased in the opposite sense by a constant current in a winding 2, the bias circuit including a bridge rectifier 7, a smoothing network 8-11 and a choke 6 which serves to maintain the bias current constant. A circuit 13, 14 tuned to the rated frequency provides the energizing current for an input winding 1, the input circuit including a bridge rectifier 16 and a smoothing network 17 and 18. A further input winding 3 is adjustably supplied from the same source over a differentiating capacitor 12. Both input windings 1, 3 act in the same positive sense, and are respectively energized by currents which are a function of frequency and the rate of change of such frequency.
Patent GB-736148-A (GB)
Title: Ceramic materials
Inventor: ALDRED FRANCIS HENRY
IPC: C04B33/02
Filed: 1952-02-01
Abstract: A fired ceramic comprises a sintered matrix of fine crystals of refractory and 10 to 40 per cent by volume of a coarse additive embedded in the matrix, the ceramic being free of glass or a reaction product of the matrix with the additive.  Specified for both the matrix and additive are alumina, fused silica, mullite, stabilized zirconia, molochite, and cyanite, singly or in admixture.  Preferably the matrix material all passes 300 B.S.S., whilst the coarse additive varies between 22 and 300 B.S.S. Specifications 632,247 and 716,894 are referred to.
Patent GB-756321-A (GB)
Title: Improvements relating to copying cameras
Inventor: COOPER ARTHUR HARRY
IPC: G03B27/38
Filed: 1952-02-01
Abstract: 756,321. Photographic copying cameras. LITTLEJOHN & CO., Ltd., S. R. Jan. 30, 1953 [Feb. 1, 1952], No. 2811/52. Class 98 (1). Simultaneous movement of the copyholder and sensitive material holder, or of the copyholder and lens holder, is actuated by a rotatable screw cam of varying pitch and a rotatable member which have constant rotational speed ratio, whereby the camera is maintained constantly in focus. In a single Figure the negative holder 3 of a reflecting camera with lens 4 is moved by engagement of a pin 21 in varying pitch helical cam groove 20 of a cylinder 16 on rotation of a spindle 15, and simultaneously a worm-wheel 18 on the spindle 15 drives a wormwheel 19 and hence a chain 10 connected to counterweighted copyholder 6, to maintain focus. A camera with a horizontally-disposed lens and copyholder in front of and below the lens, having a downwardly disposed spindle provided with a varying pitch cam groove cylinder for moving the sensitive material holder, and a lower part of the spindle with a thread or cam groove of constant pitch for moving the copyholder, is briefly described. Details concerning movement of the lens holder are not provided.
Patent GB-251351-A (GB)
Title: Stands and supports for displaying articles
IPC: A47F7/00
Filed: 1925-01-31
Abstract: 251,351. Sayer, J. Jan. 31, 1925. Backstands; racks for light articles.-A support for displaying articles comprises vertical members A, provided with perforations E to receive holders F for the articles, slidably arranged between transverse fixed members D. The device may be secured to a wall or provided with end standards to form a stand. Specification 21471/08 is referred to.
Patent GB-360756-A (GB)
Title: Improvements relating to gully traps
IPC: E03F5/04
Filed: 1931-01-29
Abstract: 360,756. Sanitary traps. KANE, W. H., Larne Foundry, Larne, Co. Antrim, Ireland. Jan. 29, 1931, No. 2885. [Class 33.] In sanitary traps of the type comprising a pit 1 and a removable door 3a above a 'water seal disposed in an outlet from the pit, the member 3a is horizontal and hermetically-sealed, and is disposed in a pocket 5a which communicates with the pit through an aperture 2. The dip-plate 6 is arranged at an angle from the side of the pit and the cover 3a is supported by a circular flange 3c provided with a groove 4 to receive the sealing material, i.e. water, grease, oil or clay.
Patent GB-575946-A (GB)
Title: Improvements in and relating to methods of and apparatus for basing glass envelopes for electric lamps and similar electric devices
IPC: H01J9/34
Filed: 1944-02-17
Abstract: 575,946. Sealing metal to ceramic materials. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 17, 1944, No. 2945. Convention date, Feb. 20, 1943. [Class 36] [Also in Groups XI and XXII] An apparatus for fixing bases to electric lamps or similar devices comprises a turret 17 fitted with a plurality of peripheral heads 16 supported by a central column 20. The heads 16 comprise vertically limited reciprocatable slide rods 33 provided with upper and lower bulb holders 34 and 35 arranged to open and close in unison, and a base holder 44 underneath bulb holder 35 to support lamp and base 11 containing a ring of cement. The setting of the cement is performed by heating the holder 44 between stations D and E by gas jets 79 after a soldering operation at station C. The work cools between station E and loading station A.
Patent GB-1170701-A (GB)
Title: Incinerator
IPC: F23G5/24
Filed: 1968-01-19
Abstract: 1,170,701. Incinerators. WASTE COMBUSTION CORP. 19 Jan., 1968 [31 Jan., 1967], No. 3086/68. Headings F4B and F4W. A refractory lined incinerator 10, comprising a main combustion chamber C, has a vertical gas exhaust passageway 30 at its top end which is connected to an offset exhaust stack 60 by an inclined refractory lined conduit 40. An oil or gas pressure burner 62 fires into the lower end of conduit 40 to form a secondary combustion chamber for consuming smoke and noxious products. Secondary combustion air is delivered to a manifold chamber 50 defined within the conduit 40 by an apertured stainless steel wall 48, through a duct 66 which leads from a plenum chamber 68 containing a blower 70. From plenum box 68, air is also supplied to pressure burner 62 through duct 80, and to a similar main pressure burner 90 through duct 92. Slide valves regulate the air flows through the ducts. Air under pressure from plenum box 68 is also supplied through duct 100, manifold 104 and air holes 108 into main combustion chamber C below the downwardly directed flame from burner 90. Air manifold 104 is defined by an annular plate 110 welded within the bottom end of incinerator casing 12 before a castable material to form refractory lining 16 is applied. Removable pegs (P, Fig. 5, not shown) define the air holes 108, during the formation of the lining 16 which is retained in position by angle plates 120. A charging door 34 and ash removal door 20 are also provided.
Patent GB-353891-A (GB)
Title: Process for manufacturing aluminium alloys
IPC: C22C21/00
Filed: 1930-01-29
Abstract: Self-improving aluminium alloys containing 5-20 per cent of copper, 1-3 per cent each of chromium, manganese and tungsten, 0,1-3 per cent of nickel and 0,1-2 per cent of alkali or alkaline earth metals viz. lithium, sodium, potassium, beryllum, magnesium, calcium, strontium, and barium, are made by adding alloys of copper, chromium, manganese, tungsten, and nickel, with aluminium to molten aluminium and then adding to the melt the alkali or alkaline-earth metals in their elementary form or in the form of alloys.  Up to 5 per cent of silver, up to 10 per cent of cadmium, and up to 3 per cent of cobalt, molybdenum and vanadium may also be incorporated in the alloy by adding alloys of these metals with aluminium to the melt before the addition of the alkali &c. metals.  Aluminium alloys containing 20 per cent of tungsten or 10 per cent of manganese or 50 per cent of copper or 20 per cent of chromium or 20 per cent of cobalt and a nickel magnesium alloy containing 50 per cent of nickel are used as additions to the molten aluminium to form the final alloy.
Patent GB-1171062-A (GB)
Title: Liquid Dispensing Apparatus.
IPC: B65D83/14
Filed: 1968-01-19
Abstract: 1,171,62. Dispensing liquids by gaseous pressure. MILES LABORATORIES Inc. Jan.19, 1968 [Aug. 31, 1967], No.3095/68. Heading F1R. Apparatus for dispensing liquid under gaseous pressure comprises a container having a filling opening with a depending tube 24 to prevent over filling and including cross webs 32, 34 for supporting a gas generating tablet 35, the opening being closed by a plug 42 having a seal 52 which is broken before threads 30, 44 disengage. An outlet tube 43 is attached to an outlet 94 formed in a plug 80 screwed into the bottom of the container and having a seal 92. The tube 43 passes into dispensing valve means 96 supported in a recess 15 and including spring lever means 99 having an end 85 for compressing the tube against a face 87. The tube is connected to a nozzle arrangement 81 adapted to receive inter-changeable nozzles 61.
Patent GB-1212737-A (GB)
Title: Improvements in ventilators
Inventor: HARRISON THOMAS JOHN
IPC: E04D13/17
Filed: 1968-01-22
Abstract: 1,212,737. Roofing ventilator. VAL DE TRAVERS ASPHALTE Ltd. 22 Jan, 1968, No. 3181/68. Addition to 1,129,953. Heading E1W. [Also in Division F4] In a roof ventilator as described in Specification 1,129,953, a collar 8 is provided surrounding and covering a ledge 11 of the base 1 to prevent ingress of the impermeable roof covering 3, 4 to the radial channels 1a. The collar 8 has a central hole with slits or notches extending therefrom to enable it to be passed over cowl 5, and may be made of sheet paper.
Patent GB-751774-A (GB)
Title: Improvements relating to record card sorting machines
Inventor: KOLM ULRICH
Filed: 1954-02-03
Abstract: 751,774. Statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 3, 1954, No. 3212/54. Class 106 ( 1 ). A record card sorting machine comprises means for feeding cards bearing data representative marks, means for sensing the cards, means for selectively distributing the cards in accordance with the data recorded thereon and means adapted to detect the destination of cards after they have passed the distributing means. The detecting means being adapted to co-operate with the sensing means to control a plurality of destination indicator devices so that whenever a card is distributed to a destination other than that sensed from the data representation an appropriate one of the devices is operated to indicate the actual destination of the card. The invention is described with reference to the card posting machine described in Specification 688,383. For the purpose of indicating the pocket into which a card is mis-sorted there is provided a group of indicator lights L1 to L9, L0, L11, L12, corresponding to the pockets. A thirteenth light LD is also provided for indicating duplicate perforations. The indicator lamps are controlled by a series of relays RK1 to RK9, RK0, RK11, RK12, and a series of impulse emitters K1 to K4, Fig. 4. These latter are shown in the positions which they occupy when a " 7 " perforation is sensed. All emitters have twelve segments numbered according to the card column and each emitter has a brush 23, 24, 32, 35, traversing its segments from 9-12 in sequence. If a card is, for example, late, as shown in Fig. 2, relay RF closes its contacts RFa and establishes a circuit as follows :-line wire W1, contacts RZa, relay RX, contact RFa, the brush of emitter K3 and the " 8 " segment thereof, relay RK8, wire W4, relay StR and release key contacts KT, to line wire W2. Relay RK8 closes its contacts RK8a and establishes a holding circuit from line wire W1 through the contacts RK8a, relay RK8, wire W4, relay StR, and contacts KT to line wire W2. The lamp L8 in parallel with relay RK8 is illuminated and the .relays RK8 and StR remain energized continuously. The relay StR opens its contacts StRa and deenergizes the motor control relay MKR and motor relay MR causing the sorting machine to stop. The card which caused the energization of relay RK8 will be guided to the " 8 " pocket and the lamp L8 being associated with the " 8 " pocket will indicate to the operator where to find the card which mis-sorted. The same effect is produced whether the card, say a " 7 " punching, is mis-sorted into the " 8 " pocket or if an " 8 " punched card is correctly sorted into the " 8 " pocket but the associated circuits operate incorrectly causing the card to be treated as if sorted in error.
Patent GB-792698-A (GB)
Title: Improvements relating to engine-cooling arrangements in motor vehicles
IPC: B60K11/04
Filed: 1956-02-01
Abstract: 792,698. Motor vehicles. DAIMLERBENZ AKT.-GES. Feb. 1, 1956 [Feb. 1, 1955], No. 3218/56. Class 79(3) In a motor vehicle a front-mounted liquid-cooled engine 12 is arranged in advance of the driver's seat and radiators 18, 19 are disposed one on each side of the front portion of the enginewith their cooling surfaces extending transversely of the vehicle, a blower or fan 24, 25 disposed in front of each radiator. As shewn the invention is applied to a commercial vehicle having a front engine 12 driving either or both the front and rear wheels. The fans 24, 25 are driven through a common drive, for example a chair or belt 22 from an engine-driven sprocket or pulley 23.
Patent GB-676688-A (GB)
Title: Improvements in and relating to power units
IPC: F16H9/04
Filed: 1949-02-05
Abstract: 676,688. Change speed gearing. PRETTY &; SON, Ltd., H. C., and PRETTY, I. C. Jan. 16, 1950 [Feb. 5, 1949], No. 3243/49. Class 80 (ii)- In a power unit which is particularly applicable to fly spinning frames, a base plate 1 is pivoted on a support 3, is adjusted angularly with respect thereto by a bolt 4, and carries an electric motor 9, a first lay-shaft 10 and a second lay-shaft 20. The bolt 4 is pivotally mounted on the support 3 and is surrounded by a compression spring 6. The first lay-shaft 10, belt driven by the motor 9, has fast upon it V-grooved pulleys 15, 16. On the second lay-shaft 20 are smooth faced loose pulleys 17, 18, each of which is coupled respectively to a V-grooved pulley 21, 22 also loose upon the shaft. V-belts 23, 24 connect the pulley-pairs 16, 22 and 15, 21 respectively, the sizes of these pulley-pairs being so chosen that the pulleys 17, 18 rotate at different speeds. A flat driving belt 25 may engage with either of the two pulleys 17, 18 and is maintained under tension by the spring 6 and pivotal mounting of the base plate 1; a shifting device for moving the belt from one pulley to the other may be provided. The tension of the other belts can also be adjusted. The belt drives between the motor 9, shaft 10 and shaft 20 may be replaced by chain and sprocket connections.
Patent GB-681786-A (GB)
Title: Pyrophoric lighter
IPC: F23Q2/42
Filed: 1951-02-09
Abstract: 681,786. Pyrophoric lighters. RACEK, A., and RAGANITSCH, J. Feb. 9, 1951 [Feb. 16, 1950], No. 3259/51. Class 75(iii) In a pyrophoric lighter in which a fuel tank is movable within and can be locked in at least two positions of use in the lighter casing the fuel tank is subjected to the pressure of a spring between the tank and casing bottom and has at least one e locking member transversely spring-urged into engagement therewith. The fuel tank 4, slidable within a space 3 in the lighter casing and held in the lowermost locking position by a projection 8 engaging a recess 16 in its side, is moved, on depression of a button 10, by a conical spring 5 to the uppermost locking position in which a shoulder 23 on the tank 4 engages a flange 20 of another locking member 18. The member 18 on being pivoted outwardly about lugs 19 releases the tank 4 which is urged upwardly by the spring 5 to enable the tank 4 to be withdrawn by hand from the casing 1. The member 18 is held in the locking position by lugs 22 overlying a leafspring 17 which spring at its top end bears against the inside of the lighter casing wall and at its lower end bears against an arm 9 of a lever 7, 9 to hold the projection 8, when the tank 4 is on the lowermost position, in locking engagement with the recess 16.
Patent GB-365342-A (GB)
Title: Improvements in or relating to spraying apparatus
IPC: B05B5/04
Filed: 1931-02-02
Abstract: 365,342. Spray-producers. REAVELL, J. A., 5, Grosvenor Gardens, London. Feb. 2, 1931, No. 3310. [Class 69 (iii).] A sprayer comprises a rotary element 2 having an outwardly flared portion to the under surface of which liquid is supplied through passages between the members 4, 6 the area and configuration of which may be varied. This variation may be effected by the use of interchangeable washers which may be placed beneath collars 8 on the bolts 7 by which the members 4, 6 are connected. The outwardly flared part 2 may be surmounted by a cup-like portion 3 into which liquid is fed and from which it passes radially to the under surface of the portion 2. Specifications 284,049 and 306,009, [both in Class 69 (iii), Sprayproducers &c.], are referred to.
Patent GB-1161728-A (GB)
Title: Flagpole Assembly
IPC: G09F17/00
Filed: 1968-01-22
Abstract: 1,161,728. Flags. ELECTRONIC FLAG POLES Inc. 22 Jan., 1968 [23 Jan., 1967], No. 3315/68. Heading G5X. A flagpole and apparatus for raising and lowering the flag has a hollow tubular staff 11 within which the flag is stored, a truck assembly 13 containing guiding wheels for an endless halyard 15 which may be driven by a motor system 17 contained in base 12, and a furling and guiding means 14 which has an opening through which the halyard 15 passes in order to take the attached flag 18 into the interior of the flagpole. Details are given of devices to prevent the flag from fouling, as it is raised and lowered, and of a control system which raises and lowers the flag in response to rainfall, wind strength and/or light intensity.
Patent GB-545541-A (GB)
Title: Improvements in or relating to travelling cranes and the like
IPC: B66C7/14
Filed: 1941-03-11
Abstract: 545,541. Gantry cranes. KING, Ltd., G. W., and KING, D. M. March 11, 1941, No. 3332. [Class 78 (iv)] In gantry cranes having cross beams which are adapted to be brought into alignment with one or more other movable beams, or with stationary runways, for the purpose of transferring the load-carrying trolley from one beam to another, stop devices are provided which come into position when the beams are not in alignment to prevent the trolley from running off the beam end. The stop devices consist of arms 16, 17 pivoted respectively at 14, 15 to frames 12, 13 on the beams 10, 11. The arms 16, 17 are forked to take over the vertical rib of the I-section beam, and are raised manually when the beams are aligned, a catch automatically permitting this to be done only during alignment. The mechanism consists of a lever 40 rockable from the ground by chains 41 and operating through a cam 38 and roller 37 to raise a finger 27 pivoted at 19. This finger, when the beams are aligned, lifts a gapped member 20 pivoted at 18 on the opposite beam, and through toothed sectors 25, 26 swings the arm 16 upward out of the way of the trolley wheels. Simultaneously the lower fork 23 of the member 20 in rising strikes against another finger 28 also pivoted at 19 and through toothed sectors 42, 43 swings the arm 17 upward. The safety catch 34 abuts against a shoulder 35 on the finger 27 to prevent this being lifted by the chains 41 when the beams are out of alignment. When in alignment, however, a lever 32 pivoted at 33 and unitary with the catch 34 is raised by cams 30 on the frame 12 to lower the catch 34 out of the way of the shoulder 35. Positive downward movement is imparted to the finger 27 to lower the arms 16, 17 by a tail 44 turned by the lever 40 to bear on the top of finger 27. Switches may be combined with the member 20 and finger 28 respectively to cut off the current from the crane motor and the beam motor till the arms 16, 17 are down. Limit switches may also control the movement of the trolley along the gantry.