baber/WOPTO huggingface dataset:
Patent GB-1284858-A (GB)
Title: Gas turbine engine constructions
IPC: F02C7/18
Filed: 1971-04-19
Abstract: 1284858 Gas turbine engines - cooling UNITED AIRCRAFT CORP 19 April 1971 [28 April 1970] 26584/71 Heading F1G The invention relates to a gas turbine engine and to means for supplying coolant air-flow to the turbine rotor blades. The engine shown comprises a compressor outlet diffuser 2, combustion equipment 4 comprising a series of flame tubes 6 disposed within an annular air space formed by walls 8, 14, turbine inlet nozzle guide vanes 18 and a two-stage turbine comprising rotor discs 40, 60 having hollow blades 42, 62 mounted thereon. A portion of air from the diffuser 2 passes into an annular manifold 100 and thence through struts 104 to an annular space 17 defined between the inner air casing walls 14, 15, the air passing to a space defined between fixed wall members 28, 30. The air passes from this space into an annular passage 26 defined between fixed wall members 24, 30, a series of inclined guide vanes 27 being located in the passage 26 whereby the cooling air is given a swirl in the same direction as the rotation of the rotor disc 40. The passage assembly 26 extends into a rotating annular passage assembly defined by wall members 48, 49 secured to the upstream face of the turbine rotor disc 40, air passing from the annular passage through openings 52, 54 formed in the rotor disc, the air passing through opening 52 passing into a space defined by side plates 44, 46 thence through openings and into the hollow interiors of the rotor blades 42, the air finally discharged through openings 56 along the trailing edges of the blades into the working fluid passage. The air passing through the openings 54 in the rotor disc 40 enters the chamber 70 formed between the rotor discs 40, 60, the air passing through openings 72 into the space defined between side plates 66, 68 of the second rotor disc 60, the air then passing into the hollow rotor blades 62 of the turbine disc 60, finally discharging through openings at the blade tips. Seal means are provided at 22, 32. Some air leaking through the seal 32 flows as indicated by arrows through openings 94 in the rotor shaft 41 to cool the downstream face of the disc 60.
Patent GB-928046-A (GB)
Title: Improvements relating to suction cleaning apparatus
IPC: A47L5/24
Filed: 1959-08-04
Abstract: 928,046. Floor cleaning appliances. HOOVER Ltd. Aug. 4, 1959 [Aug. 8, 1958 (2)], No. 26628/59. Addition to 882,020. Class 138 (1). A scrubbing and liquid pick-up suction appliance includes a combined scrubbing and water pick-up nozzle 10, a separator 18 connected by suction tubes 11, 15 to the nozzle, a fan 47 for applying suction to the separator to draw air or dirty liquid into it, and a tank 14, the open top of which fits into a recess 33 in the separator with the flange 31 of a supporting ring 30 forming a sealing gasket between the upper edge of the tank 14 and the lower edge of the separator 18 so that the tank 14 may receive the dirty liquid from the separator 18 and also be readily removable from the appliance. As shown in Fig. 2 the tank 14 includes an outer casing 28 to contain clean detergent liquid and an inner impervious flexible bag 29 to contain dirty liquid, the mouth of the bag 29 being secured to the supporting ring 30. The detergent is discharged from the tank 14 by the opening of a leaf spring mounted valve 36 on actuation of a control rod 41 downwardly against the action of a spring 48. The tank 14 is held in position by means of a face cam which exerts an upward pressure on the tank bottom when in its locking position. Specification 928,048 also is referred to.
Patent GB-444483-A (GB)
Title: Improvements relating to movable seats for vehicles and the like
IPC: B60N2/06
Filed: 1934-09-17
Abstract: 444,483. Vehicle seats. CHAPMAN, A. W., 115, Howard's Lane, Putney, London. Sept. 17, 1934, No. 26671. [Class 52 (ii)] A vehicle seat is provided at the rear with a link 10 anchoring it to the floor or to a base, while the front is so held as to prevent transverse and vertical movement but to allow the sliding and pivoting movement necessary. For instance, a sliding member 5, pivotally attached to a fixed base 9, Fig. 1, or to the seat 3, Fig. 3, may slide in guides 6 on the seat or on the base respectively. The links 10 and slides 6, Fig. 3, may be attached to members 14 which slide on fixed guides 15. Specification 181,046, [Class 52 (ii)], is referred to.
Patent GB-1002275-A (GB)
Title: Carbon monoxide determination
IPC: G01N31/22
Filed: 1964-06-29
Abstract: 1,002,275. Gas analysis. MINE SAFETY APPLIANCES CO. June 29, 1964 [July 5, 1963], No. 26723/64. Heading G1B. A transparent sealed detector tube 2 for the determination of carbon monoxide comprises an elongate bed of calorimetric indicator for carbon monoxide 8 disposed between layers 10, 12 of a protective composition consisting of a mixture of 97 to 99.75% granular absorbent for interfering gases. e.g. silica or alumina gel and 0. 25 to 3% granular absorbent for carbon monoxide. The calorimetric indicator and the granular absorbent for carbon monoxide may be the same composition and may incorporate an alkali metal pallodo sulphite or palladium sulphate-ammonium molybdate complex. Specifications 581,618 and 656,257 are referred to.
Patent GB-627054-A (GB)
Title: Improvements in or relating to flexible tubing, conduits or the like
IPC: F16L11/118
Filed: 1946-09-05
Abstract: 627,054. Hose pipes &c. BELL'S ASBESTOS & ENGINEERING, Ltd., WOOD, L. J. C., and HEALD, J. E. Sept. 5, 1946, No. 26725. [Class 99(ii)] A flexible hose adapted to withstand internal and external heat comprises a layer of impervious, fluid-tight material 3, such as synthetic rubber, a chemically inert plastic, or copper or aluminium foil, covered externally with and lined internally with a single-ply or multi-ply layer of cellular heat-insulative material 2, such as asbestos or glass wool. Internal and etxernal, stainless-steel, helical wires 1, 5 may be provided, one wire being disposed between the coils of the other so as to crimp the hose together; alternatively, the outer reinforcement may consist of asbestos cord or plastic film. Specification 591,560 is referred to.
Patent GB-1033789-A (GB)
Title: Fog density measurement by photon scattering
IPC: G01N23/201
Filed: 1964-06-29
Abstract: 1,033,789. Electronic analogue calculating. ATOMIC ENERGY OF CANADA. June 29, 1964 No. 26747/64 Heading G4G. [Also in Division G1] In apparatus to measure the specific gravity of water fog by the scattering of gamma-rays (see Division G1), an analogue circuit is used to obtain a value of the steam quality Q (percentage weight of water vapour). The apparatus is used to obtain two series of pulses, one series produced, at a rate F, by detecting gamma-rays scattered by the fog and occupying one particular energy range, and another at a rate B, by detecting gamma-rays forming a background radiation in an adjacent energy range, the specific gravity of the fog being proportional to the difference F-B. The steam quality Q depends on the specific gravities of gas and liquid in the fog, and of the mixture itself, and on the relative velocity of the two phases; a simplified equation for Q also involving the rates F, B can be developed: Q (0À685 F-B) = (1-Q) 0À3435 (B-0À0601 F). In the analogue circuit pulses at rates F and B are fed into two circuit branches, the unprimed branch including an amplifier A to produce a voltage representing (0À685 F-B) and the primed having an ampli- 0À3435 fier A1, a voltage representing - (B-0À0601 F). Pulses F, for example, of unit weight, charge capacitor C1 and are passed by the diode pump to capacitor C3 to develop a current C1F1 a fraction f of which, controlled by the setting of the potentiometer K1, passes to amplifier A. The total output voltage of amplifier A as a result of the F and B pulse signals and the effect of feedback through potentiometer R4 set at a ratio r, in order to provide a temperature compensation factor, and through resistor R3, is (fFC1-bBC2)R3/r. Thus fC1R3 is arranged to equal 0À685, bC2R3 equal to 1 and r to 0À3435. The circuit components of the primed circuit are similarly computed to provide the factor (B-0À0601 F). The meter M measures the ratio, equal to (1/Q - 1), of the currents obtained from the two branches, or a servo-type recorder 80 may be used, with a resistor 45, to read Q directly.
Patent GB-199307-A (GB)
Title: Improvements in or relating to casements
IPC: E06B3/16
Filed: 1922-10-04
Abstract: 199,307. Hopkins, C. Y., and Cartland Metallique du Sud-Est, and Jalliffier, G. Oct. 4, 1922. Casements; window frames; sills and lintels.- The tubular frame of a casement window is formed by bending hoop irons to the required profile and uniting them bv double-bent engaged ends as shown. The grooved member of the groove- and-tongue meeting edges mav be formed in a piece of hard wood f' in which are engaged the bent ends f<6>, f<7> of the tubular frame f<9>. The glass may be secured by pins l before puttying. The sill has two grooves and holes communicating with a gargoyle to carry away water from the inside and outside of the window.
Patent GB-685909-A (GB)
Title: Improvements in single spindle automatic lathes
IPC: B23B7/02
Filed: 1950-09-14
Abstract: 685,909. Lathes. CONE AUTOMATIC MACHINE CO., Inc. Sept. 14, 1950 [Sept. 15, 1949], No. 26840/51. Divided out of 685,881. Drawings to Specification. Class 83 (iii). A single-spindle automatic lathe comprises a main tool-carrier, a secondary tool-carrier mounted for motion with and relative to said main carrier, and means for adjusting the direction of motion of the secondary carrier with respect to the spindle. Specifications 685,881, 685,882 and 685,910 are referred to, the machine described being identical with that of the first Specification.
Patent GB-968034-A (GB)
Title: Improvements in the detection of bodies having magnetic properties
Inventor: ELLSON PETER BRIAN
IPC: G01V3/08
Filed: 1961-07-25
Abstract: 968,034. Magnetic tests. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 31, 1962 [July 25, 1961], No. 26842/61. Heading G1N. [Also in Division G4] Delays or incipient stoppages in the passage of bodies along a predetermined path, are detected by the distortion they produce in an ambient magnetic field such as that of the earth, this distortion producing in a magneto-electric transducer, such as a Hall plate 1 energized from an oscillator 2, a signal which is passed to discriminating means such as a Schmitt trigger 13 feeding a trigger circuit 14 which, in the "on" direction, responds only to signals persisting for a predetermined time, but which is restored instantaneously, thus discriminating between distortions of brief and persistent duration. The Hall plate 1, of indium antimonide, is fed with a signal in the range 1-2 kc./s. and has its sensitivity increased by high permeability field concentrating rods 8. A resistor Rv reduces signals due to an unbalance between the soldered plate connections; and a Wagner earth W enables the potential at O1 or O2 to be set at earth level. Output signals from the detector 1 may contain a small constant frequency component due to non-linearities introduced by the soldered connections and this is eliminated from the output of an amplifier 5 by a frequency selective negative feedback network 11. The amplifier output is fed through a diode amplitude detector 12. The Specification discusses the detection of moving or stationary vehicles, the counting of moving vehicles and the detection of traffic congestion.
Patent GB-464198-A (GB)
Title: Improvements in water tube steam boilers
IPC: F22B37/40
Filed: 1936-10-03
Abstract: 464,198. Water-tube steam boilers. BABCOCK & WILCOX, Ltd. Oct. 3, 1936, No. 26880. Convention date, Oct. 3, 1935. [Class 123 (ii)] A two-drum water-tube. boiler with a watercooled furnace 30 wholly at one side of the main tube bank 18 has a baffle system 40, 43, 46 forming a series of superposed gas passes 50, 51, 52, and burners 31 discharging fuel transversely of the tube bank so that the furnace gases enter the lowermost pass throughout its length. A looped-tube superheater 63 is arranged to receive radiant heat through spaces between tubes 18<1> forming the innermost row of the tube bank. In a modification having a furnace bottom in which molten slag is collected alternate tubes of the two innermost rows are bent inwardly to provide a slag screen. A further embodiment has a relatively wide furnace with an upwardly directed burner in the floor and in another the tube bank is inclined and the shortened furnace roof comprises the tubes of the side wall 10, header 23 being eliminated and an economizer or air heater provided in the enlarged space beyond the last gas pass 52.
Patent GB-362911-A (GB)
Title: Improvements in or relating to the manufacture of sugar or similar products
IPC: C13B30/06
Filed: 1930-09-09
Abstract: Sugar crystals separated from massecuites are freed from the film of material remaining thereon after centrifuging by treating the crystals in the centrifuge with a small proportion of sulphur dioxide, dissolved in water or diluted with a gas or vapour such as steam.  The concentration of the sulphur dioxide is so selected that the run-off, or the mixture of the mother liquor and the run-off, has a pH value not lower than that permissible in its subsequent working up.  If the treatment with sulphur dioxide would lower the pH value of the expelled liquids below the desired limit, the crystals are first treated with an alkaline substance such as a solution of lime or sodium carbonate.  The treatment with sulphur dioxide may be followed by washing with a suitable liquid, or with a suitable gas or vapour, preferably supplied under pressure.  A sulphite, bisulphite, carbonate or carbon dioxide may be used instead of sulphur dioxide.
Patent GB-663185-A (GB)
Title: Improvements in saw-benches for circular saws
IPC: B27B5/24
Filed: 1948-10-15
Abstract: 663,185. Circular saws. KINE ENGINEERING CO., Ltd., and MELDRUM, E. C. Oct. 17, 1949 [Oct. 15, 1948], No. 26922/48. Class 145 (ii) In a saw bench having a fixed table top and a circular saw carried by a pivotially mounted arm, the drive to the saw 1 is effected by a single belt 13 passing over a pulley 15 coaxial with the pivot 4 of the saw-carrying arm 3, a pulley 14 fast on the saw shaft, a spring loaded jockey pulley 19 and a motor pulley 16, and the saw is adjusted by a screw device operated by a hand wheel 12. A screw clamping device 26 may maintain the saw in its adjusted position. A riving knife 27 mounted on an extension 28 of the arm 3 moves with the saw. The prime mover may be an electric motor, as shown, or an internal-combustion engine.
Patent GB-1199895-A (GB)
Title: Bis-(Hydroxyaroxy)-Dihalobenzenes
Inventor: DARSOW GERHARD
IPC: C08K5/13
Filed: 1969-05-28
Abstract: 1,199,895. Bis - (hydroxyaroxy) - dihalobenzenes. FARBENFABRIKEN BAYER A.G. 28 May, 1969 [1 June, 1968], No. 26940/69. Heading C2C. The invention comprises bis-(hydroxyaroxy)- dihalobenzenes of the formula in which R<SP>1</SP> and R<SP>2</SP> individually denote a hydrogen atom or an alkyl or alkoxy radical having 1-4 carbon atoms; each Hal is individually selected from chlorine, fluorine and bromine; and Ar is a phenylene, naphthylene, diphenylene or a polynuclear aromatic radical of the formula where Z is a bivalent aliphatic, cycloaliphatic or araliphatic radical with 1-8 carbon atoms or -O-, -S-, -SO-, -SO 2 - or -CO-, and the aromatic nucleus or nuclei of Ar may be substituted by 1-4 alkyl or alkoxy groups with 1-4 carbon atoms or halogen atoms. These compounds are prepared by reacting 1 mol. of a tetrahalobenzene of the formula with 2 mols. of dialkali metal salt of a diphenol, said salt having the formula MO-Ar.OM, in which M denotes an alkali metal, in a polar organic solvent at a temperature of from 60‹ to 180‹ C., and acidifying the reaction mixture. The dialkali metal salt of a diphenol may be prepared in situ. The examples describe the preparation of following compounds: 1,4-bis- [4 - (4 - hydroxyphenyl - isopropyl) - phenoxy]- 2,5 - dichlorobenzene; 1,3 - bis - [4 - (4 - hydroxyphenyl - isopropyl) - phenoxy] - 2,4  dichlorobenzene; 1,4 - bis - [4 - (4 - hydroxyphenyl - isopropyl) - phenoxy] - 2,5 - dibromobenzene; 1,3 - bis - [4 - (4 - hydroxyphenylsulphone) - phenoxy] - 2,4 - dichlorobenzene; 1,4 - bis - [4 - (4 - hydroxy) - diphenoxy] - 2,5 - dichlorobenzene.
Patent GB-602411-A (GB)
Title: Improvements in or relating to supercharger control systems
IPC: B64D13/04
Filed: 1945-10-15
Abstract: 602,411. Variable-speed gears. BENDIX AVIATION CORPORATION. Oct. 15, 1945, No. 26941. Convention date, July 18, 1944. [Class 80 (ii)] [Also in Group XXIX] The speed of a blower 11 suitable for supercharging an aircraft cabin is controlled by the air flow which causes a variable pressure to act on the pilot valve 21 of a servomotor 29, the liquid pressure acting on the latter also acting on a diaphragm 34 to re-centre the pilot valve, and the piston 29 is connected to the control valve 47 of a further liquid pressure servomotor 8 whose movement throttles the flow of liquid from the outlet of a pump 7 driven from gearing 2 from which the blower is also driven, the arrangement being such that the variable load imposed on the pump by the action of the throttle 8 acts through the gearing to vary the speed imparted to the blower from the engine shaft 1 ; and, also, the outlet pressure of the pump is applied through a conduit 40 to a piston 44 which varies the position of a sleeve valve 44a constituting a seat for control valve 47, whereby the latter is restored to neutral by the consequential variation in the output pressure of the pump. Restrictions 27 and 36 situated, respectively, in the control conduit leading to servomotor 29 and in the conduit leading this control pressure to followup diaphragm 34, stabilize these two controls. The air flow from the supercharger is led through a venturi 13 and the ensuing differential pressures act on a diaphragm 17 which has a variable spring loading 18 and is in contact with the spindle of pilot valve 21. Eccentric studs 53, 54 limit the movement of servomotor 29, and the spindle of the latter has a pin-andslot connection with sleeve valve 44a. The gearing interposed in the drive between the engine shaft and the blower and pump comprises a ring gear driven by shaft 1 and driving planet gear 4 carried by a spider which drives the pump. The planet gears also engage with a sun gear 3 which drives the blower.
Patent GB-158350-A (GB)
Title: Improvements in or relating to economising valves
IPC: F16K39/02
Filed: 1919-11-03
Abstract: 158,350. Hook, W. S. Nov. 3, 1919. Economizer valves and valve-gear.-A balanced lift economizer valve e<1> is made in one with a piston a, and is loosely mounted upon a spindle f to permit slight longitudinal play. The spindle f has a valve seat f<1> to supply steam to the balance cylinder b<2>. The spindle f has adjustably secured thereto a slotted cross-head through which the actuating-shaft passes, and upon which bears an adjustable spring l. The shaft j carries an arm i provided with rollers k which engage the arms h on the cross-head and raise the valve during each direction of rotation. An arcuate baffle e<1> is arranged around the valve-seat to prevent erosion by the passing steam.
Patent GB-1279565-A (GB)
Title: Improved refuse compactor
IPC: B30B9/30
Filed: 1970-06-04
Abstract: 1279565 Baling presses WHIRLPOOL CORP 4 June 1970 [5 Nov 1969] 27091/70 Heading B5F [Also in Division B8] In a refuse compactor comprising a cabinet housing a ram 16 for compacting refuse in a drawer 11, the ram 16 is controlled so that it is retracted on reaching a predetermined compaction force and so that compaction is terminated if the drawer is incorrectly positioned. The ram 16 is driven by threaded shafts 18 rotated by a motor 17 having a start winding 22 and a main winding 20 which is in series with a relay 31 having contacts 32 in series with the start winding 21. The direction of energisation of the start winding 21 is determined by a switch 23 which is biased to cause retraction of the ram 16 but which is changed over when the ram 16 is in the retracted position. In operation, a start switch 26 is closed to energize the relay 31 and close the contact 32, thus starting the motor 17 to cause the ram 16 to descend and allow the switch 33 to change over. When the motor 17 is running the relay 31 is deenergized, and the descending ram closes a switch 25 which, with a switch 27, by-passes the start switch 26. When the resistance to movement of the ram 16 increases, due either to maximum compaction or abutment with resilient stops 41, the relay 31 is re-energized to close the contacts 23 and thus re-energize the start winding to withdraw the ram 16. Should the drawer 11 move during the compaction process, as by the jamming of some article by the ram 16, the switch 27 is opened to de-energize the motor and the switch 26 can then be depressed to retract the ram 16. Should the displacement of the drawer 11 exceed a certain limit a switch 24 is opened to de-energize the compactor.
Patent GB-1284958-A (GB)
Title: Die retaining devices
Inventor: WHISTLER LAURENCE V SR
IPC: B21D28/34
Filed: 1970-06-04
Abstract: 1284958 Mounting dies S B WHISTLER & SONS Inc 4 June 1970 27118/70 Heading B3W A retainer 30 for a die 72 supports a dielocating flat annular member 56 of relatively rigid resilient material having cut outs 64 in its inner edge to form a plurality of resilient portions 66, the inner edges of which define a central opening of slightly smaller dimensions than the die 72 and a retainer ring 60 the member 56 being supported between a face of the retainer 30 and the retainer ring 60 on one of which is a relieved edge portion to enable the inner portions 66 of the member 56 to flex in one direction only to snugly receive and hold the die 72. As shown, Fig. 3, the ring 60 has a bevelled edge 70. In other embodiments, Figs. 19 and 20 (not shown), the bevelled edge (160) is on the die retainer. The die is aligned in the aperture 56 in the die retainer 30 by engagement of a flat 90 on one side of the die with a flat 91 on a pin 92 disposed in a transverse recess 94 in the die retainer. A forked tool 100 can be engaged in a groove 98 for removing the die. The groove may alternatively receive a snap ring for locating the die relative to a template. Described but not claimed is a punch 190 (Fig. 7) held in a retainer 180 by engagement of a tapered end of a pin 210 in a recess 220 in the punch head. A spring plate 232 on the retainer snaps into a groove in the pin and urges it inwardly. A screw 242 engaging in a hole 252 in the pin allows the pin to be forced towards the punch or the punch to be released. A tapered retaining pin 198 engages a flat 196 on the punch head. Alternatively a pin (270), Fig. 10 (not shown), is held in place with an end flat against the flat 196 by having epoxy resin moulded about it. In another embodiment, Fig. 12, the punch is held in the retainer by a threaded split collar 320 which has a gripping element (330), Fig. 17 (not shown), of plastics material which wedges in the threads.