baber/WOPTO huggingface dataset:
Patent GB-2462166-A (GB)
Title: Centrifugal fan extraction system for a lavatory unit
Inventor: PORTER PATRICK
IPC: E03D9/052
Filed: 2009-06-24
Abstract: The invention relates to an extraction system for lavatory units i.e. a urinal or a toilet bowl 15, with a receptacle for human liquid or solid waste, and an outlet 19 for such waste. The extraction system extracts odours from a region upstream of the outlet and comprises a shallow housing 1 with front (3 fig 9), rear (4 fig 9) and side walls (9 fig 9). The depth of the housing from the front to the rear wall is substantially less than distances across the front and rear walls from one side to the other. The housing mounts a centrifugal fan 2 with its axis perpendicular to the rear wall. The fan has an axial air inlet 6 located centrally of the front wall and an air outlet (11 fig 2) generally tangential to the fan in a side wall of the housing. The housing has a ducting 20 provided for airflow for odour-laden air from a region of the lavatory unit upstream of the receptacle outlet to the air inlet. The air outlet is coupled to discharge air from the air outlet so as to remove the odour from the vicinity of the lavatory unit. Where the lavatory unit has a water trap 18, the air outlet may be provided with ducting 21 coupling the outlet to the lavatory unit downstream.
Patent GB-2474292-A (GB)
Title: Planar arrangement of solar cell elements with luminescent concentrator elements
Inventor: MARKVART TOMAS
IPC: H01L31/055
Filed: 2009-10-09
Abstract: A solar cell assembly has one or more solar cell elements 21, 31 and light collector elements 15, 17, 33, the collector arranged adjacent at least one edge of the solar cell element. The solar cell adjacent edge may be an edge that does not form a plane surface perpendicular to a growth direction of the cell element. The adjacent edge may also or instead be a relatively smaller side edge of a substantially planar element. The light collector is preferably a luminescent light concentrator absorbing and re-emitting light. A mirror 27 may be provided on a rear of the assembly, and a photonic mirror 25, reflecting re-emitted light from the collector, may be provided on a light collecting front of the assembly. The assembly may comprise multiple layers of alternating solar cell elements 31a,31b and collector elements 33a,33b,33c, the layers staggered so a cell in one layer overlaps a collector in the other layer. The elements may for a 2-D pattern of lines or a chequered pattern. A further alternative arrangement (see fig 5) has recesses (45) formed in the light receiving surface of a solar cell into which one or more light collector elements (46) may be placed.
Patent GB-743797-A (GB)
Title: Improvements in or relating to electron discharge tubes
Inventor: BRADLEY EDWARD MICHAEL
IPC: H01J17/04
Filed: 1953-04-13
Abstract: 743,797. High-frequency discharge apparatus. ELLIOTT BROS. (LONDON), Ltd. April 13, 1954 [April 13, 1953], No. 10066/53. Class 39 (1). The cathode and anode of a gas-filled discharge tube for modulating or attenuating electromagnetic waves propagated in a waveguide system are each constituted by at least a part of the respective wall of a pair of opposed walls of a waveguide section of rectangular cross-section. In the embodiment shown, the anode-cathode structure 3, Fig. 1, is in the form of a section of rectangular waveguide of which the broad faces constitute the anode 4 and cathode 5 and are insulated from the side walls 6 by sheets 7 of insulating material such as mica. The anode 4, cathode 5 and side walls 6 are flanged at 4a, 5a and 6a respectively for ease of assembly and the side walls 6 are formed with recesses 8 which act as chokes to prevent the radiation of power from the gaps between the walls of the structure. The anode-cathode structure 3 is mounted between two waveguide sections 9a and 9b, Fig. 3, and insulated therefrom by mica sheets 10, chokes 11 being provided to prevent the radiation of radio-frequency power from the gaps between the walls of the parts 9a and 9b and the anode-cathode structure 3. The whole assembly is supported by annular members 14 in an envelope 12 the end walls 12a of which are provided with slots 13 sealed by mica windows 13a communicating with the main waveguide system 2. The envelope 12 is filled with a gas such as argon, helium or neon at a pressure of the order of 4 mm. of mercury. The cathode 5 may be cold and coated with magnesium or may be heated in any suitable manner.
Patent GB-562365-A (GB)
Title: Improvements in or relating to air brakes for aircraft
IPC: B64C9/32
Filed: 1941-08-08
Abstract: 562,365. Air brakes for aircraft. FAIREY AVIATION CO., Ltd., and YOUNGMAN, R. T. Aug. 8, 1941, No. 10099. [Class 4] An air brake comprising a flap which can be projected into the airstream by the extension of a bellows device, has the bellows connected by a single conduit to the throat of a venturitube in the airstream, the tube having a butterfly or other valve so that the bellows can be subjected to pressure or suction irrespective of the attitude of the aircraft. In one form, a collapsable bellows formed of three plates a, b, c, hinged together and provided with flexible side pieces j, k, is secured within a recess g beneath a wing. A flexible partition m limits the extension of the bellows. A conduit n connects the interior of the bellows to the throat of a venturi-tube beneath the fuselage, the tube being provided with a butterfly valve q or a diaphragm valve. Opening of the valve q causes collapse of the bellows, and closing of the valve causes the bellows to open. A trimmer flap on the tail plane operated from the same pressure or suction source may be provided to counteract the change of trim or the trimmer may be independently actuated. Intermediate positions of the valve q result in partial projection of the brake flap a. Specification 517,895 is referred to.
Patent GB-147988-A (GB)
Title: Improvements in electric furnaces
IPC: F27D11/04
Filed: 1919-04-23
Abstract: 147,988. Teixeira, A. M. April 23, 1919. Shaft furnaces; combined electric and combustion heated furnaces.-A group of electric refining-furnaces surrounds the base of a shaft furnace for smelting, so that the hearths of the electric furnaces extend into the hearth of the shaft furnace. Adjacent electric furnaces may also be connected through direct passages external to the hearth. In one construction, three electric furnaces F<2>, Fig. 1, are arranged within an outer wall G forming a triangle with rounded corners. The shaft rests on a refractory slab D supported by three partition blocks E between which are the passages from the shaft furnace hearth to the deeper hearths of the electric furnaces. The passages f<1> directly connecting the electric furnaces are at a higher level than the normal surface of the metal in the furnaces, and are used when the passage from the shaft to one electric furnace is blocked. The electric furnaces and lateral passages f<1> have removable roofs. Holes in the roofs of the passages provided with covers k, allow of charging coke, charcoal, oil, refining reagents, alloying metals, &c. into the furnaces. If necessary, the roofs may be cooled by oil or by gases from the top of the shaft. Gases from the electric furnaces rise up the shaft and assist in heating the charge. Each electric furnace can be tapped separately. When one furnace is tapped, the metal from the others runs through the charge at the bottom of the shaft and is stated to be refined thereby. In a modification, the three electric furnaces and the channel sections Q, Fig. 4, connecting them are separately removable, being provided with metal casings having flanges to bolt together. Air spaces R are thus formed between the furnaces. The arrangement is suitable for the production of iron and steel.
Patent GB-375877-A (GB)
Title: Improvements in the rear suspension of motor vehicles
IPC: B60G21/05
Filed: 1931-04-07
Abstract: 375,877. Vehicle suspension systems. ROVER CO., Ltd. and SEARLE, F., Meteor Works, Coventry. April 7, 1931, Nos. 10148 and 30526. [Classes 108 (ii) and 108 (iii).] In a rear suspension system for motor vehicles in which differential shafts are mounted in a casing c carried by the vehicle frame and are connected with the road wheels by means of universally jointed driving axles a each rear wheel h with its universally jointed axle a is carried by an independently mounted frame j free to rise and fall relatively to the vehicle frame, about an axis passing through, or approximately through, the centre of the universal joint, against the action of a spring i or rubber buffer arranged between the outer end of the axle and the end of a transverse beam l pivoted at its centre m about a longitudinal axis of the vehicle. The springs and transverse beam may be replaced by a transversely disposed longitudinal spring pivoted at its centre. As shown, the casing i is secured to the longitudinal frame members e by bearers f and to a transverse plate g. The apex of each frame j carries the outer bearings for the axles a, and the springs i are interposed between the frames j and the beam l. The pivots for the frame may include conical sockets j<1> formed on each frame arm and held in contact with coned bosses on the plate g and the engine casing by means of a yoke j<2> making a central single point contact with the outside of the socket by means of a ball. A conical metal washer lined on the inside with rubber or fibre may be introduced between the bearing surfaces.
Patent GB-112587-A (GB)
Title: Improvements relating to Sewing Machines.
Inventor: FAIRWEATHER WALALCE
IPC: D05B75/02
Filed: 1917-07-13
Abstract: 112,587. Fairweather, W., (Singer Manu facturing Co). July 13, 1917. Sewing-machines; stands. - Sewing- machines 9 are supported on lugs 7 on the bottom of a drip-part 3 arranged within an opening 2 in the bench 1 and having flanges 4 which overlie the edges of the opening and are secured to the bench. The bottom of the pan is strengthened by ribs and the openings through which pass the driving-belt and the chain connecting the knee-shift to the required machine parts have raised edges. The knee-shift 19 and powertransmitter 20 are carried by a head 15 adjustably secured to the underside of the pan. An auxiliary cloth-plate 23 is hinged to the bench at 22 and is provided with a recess adapted to embrace the cloth-plate 25 of the machine on three sides. A chain 26 holds the cloth-plate 23 in raised position as shown in dotted lines.
Patent GB-564377-A (GB)
Title: A method for the production of dried potatoes
IPC: A23B7/03
Filed: 1942-09-29
Abstract: Potatoes are washed and cut into slices, dice, strips or other pieces, which are treated with a diluted, preferably 2 per cent, solution of hydrochloric or phosphoric acid for about 30 minutes so that the pH value in the surface layers is below 5 and then dried at a lower pressure than atmospheric, preferably below .5 kg/cm2, and at a temperature which is held below the temperature of gelatinisation of the starch at each stage of the drying.  The product may be ground to flour.  The potatoes may be peeled and the treated pieces may be rinsed with water before drying.  The Specification as open to inspection under Sect. 91 comprises also the drying of other vegetable foodstuffs including fruit and the treatment with a solution of an acid salt or other acid-reacting medium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-626778-A (GB)
Title: Improvements in or relating to the preparation of rubber hydrochloride
IPC: C08C19/16
Filed: 1947-04-17
Abstract: Rubber hydrochloride is prepared by passing gaseous hydrogen chloride into a solution of rubber, the solvent being preferably toluene or a mixture of toluene and benzene, at a temperature below -10 DEG  C., preferably between -30 DEG  C. and -10 DEG  C., and continuing the reaction whilst raising the temperature to a value not exceeding 5 DEG  C. and controlling the rise in temperature of the reaction mixture so that gelation is avoided and so that completion of combination of the desired amount of hydrogen chloride is attained and the reaction terminated when the temperature of the reaction mixture is between -5 DEG  C. and +5 DEG  C., preferably between 0 DEG  C. and +5 DEG  C.  The reaction mixture may be maintained at the initial temperature until all or most of the hydrogen chloride has been introduced, the reaction being allowed to proceed at temperatures above the initial temperature, the supply of hydrogen chloride being cut off before the reaction is terminated.  Excess hydrogen chloride present at the termination of the reaction may be eliminated by heating, by steam distillation, by entrainment with an inert gas or by neutralisation by adding an alkaline material.  The reaction may be carried out under superatmospheric pressure, preferably of 0 - 45 lb. per sq. in. gauge pressure, and the pressure gradually reduced to atmospheric as the reaction proceeds.  The rubber hydrochloride may be precipitated by the addition of a non-solvent therefor.  Specifications 437,304 and 474,841 are referred to.
Patent GB-476218-A (GB)
Title: Improvements in or relating to radio receivers and the like
IPC: H03G11/00
Filed: 1937-04-09
Abstract: 476,218. Reproducing music &c. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 9, 1937, No. 10208. Convention date, April 9, 1936. [Class 40 (iv)] [Also in Group XL] To minimize disturbances due to atmospherics, in a radio receiver, the upper low frequencies are separated and subjected to amplitude limitation and then combined with the other low-frequency energy. The final low-frequency valve E, Fig. 3, feeds into two transformers Tl, T2. The choke D and condenser C1 cause T2 to pass the higher and T1 the lower frequencies. T2 has a voltage step-up and T3 a corresponding step-down, the secondaries of T1 and T3 feeding the reproducer L1 in series. Condenser C2 suppresses any highfrequencies passed by T1 and C3 may attenuate frequencies above 8500 c.p.s. or be adjustable as a tone control. The amplitude limiter which consists of a glow discharge tube G is connected across the secondary of transformer T2 and the level at which limitation occurs is adjustable by means of tappings on the secondary of T2 and the primary of T3. A choke (not shown) may be provided across the secondary of T3 to prevent low-frequencies reaching the discharge lamp. Fig. 4 shows a modification in which the amplitude limiter consists of two negatively biassed, reversely connected rectifiers G1, G2. The bias from the batteries B1 B2 is adjustable by means of S, and the two channels feed separate reproducers. Figs. 5, 6 (not shown) are arrangements in which the frequency discrimination takes place at the penultimate stage of the receiver. Fig. 7 (not shown) is an arrangement in which the bias on the amplitude limiter rectifiers is controlled in dependence upon carrier level by voltage derived by rectification of the H.F. signals. Voltage derived by rectification of the L.F. signals may be similarly employed for control. Fig. 8 (not shown) is a simple arrangement for amplitude limitation of the higher frequencies. The resistancecondenser element in the intervalve coupling passes the low-frequencies, while the choke and condenser associated with an amplitude limiter pass the higher frequencies.
Patent GB-208973-A (GB)
Title: New or improved cartons
IPC: B65D5/00
Filed: 1923-04-14
Abstract: 208,973. Foster, A. W. April 14, 1923. Specially - shaped folding boxes.-A carton adapted to receive a net bag filled with dried peas is formed in the shape of a pea pod. The carton, which is formed from a single cardboard blank, comprises two segmental panels a, a<1> hinged together along a short distance of their curved edges and secured together by tongues c engaging slits d. A flap f having locking tongues g is provided to close the carton.
Patent GB-796558-A (GB)
Title: Improved leaf turner
IPC: B42D9/08
Filed: 1956-04-04
Abstract: 796,558. Leaf turners. BLEZ, B., and SAPIR, A. S. April 4, 1956, No. 10233/56. Class 52(3) A leaf turner has a radial arm 3 carrying a permanent magnet 6 mounted at the bottom of a music rack and pedal-operated, through a cable 38, to swing through 180 degrees against a return spring. Depression of the pedal displaces a rack 29 to the left and rotates a gear wheel 24 concentric with a disc 18 having a crank pin and connecting rod 16 coupling it to a second rack 13 which is geared to the hub 4 of the radial arm 3. A ratchet is interposed between the gear wheel 24 and disc 18 whereby the latter is rotated only on the return stroke of the rack 29 produced by the spring 30 as the pedal is released. As the disc 18 rotates the first half-revolution moves the rack 13 to the right and swings the arm 3 to the right, so that the magnet 6 can engage a tab 11 on the leaf to be turned, while the next half-revolution returns the racks and arm 3 to normal position, the leaf being carried over by the magnet until the latter moves clear of the leaf, the spine of which is laterally displaced in relation to the axis of the arm 3. A dashpot 35 controls the action of the parts. In a modification the radial arm 3 is permitted to carry out its left-to-right swing as the pedal reaches its fully depressed position and is maintained in that position until the pedal is released.
Patent GB-1531935-A (GB)
Title: Haymaking machines
IPC: A01D57/28
Filed: 1976-03-15
Abstract: 1531935 Hay makers C VAN DER LELY NV 15 March 1976 [20 March 1975] 10334/76 Heading A1F Two power driven contra-rotating rake members 3, 4 have a crop guide member 28 located to direct crop between the rake members. The crop guide is supported on the hitch frame 5 by two arms 25 pivotally attached at 26 to the front of the guide, the rear of the guide being deflectably and adjustably supported by a chain 31. The leading portion 29 of the guide is shaped to ride over crop on to which the guide is biased by torsion springs 32 mounted around the pivots 26. The minimum dimension of the guide measured laterally perpendicular to the direction of travel is 5 centimetres and it can have a lateral dimension equal to the distance between the axes of rotation of the rake members. The guide can have a surface which is flat, arcuately curved or of saddleback configuration. Alternatively the guide surface is formed by rods made from spring steel or synthetic plastics or by areas of mesh formation. The rods are adjustably fixed to the arms 25 to be rigidly secured at their forward ends although a biasing spring 32 and pivot may be employed. The chain 31 may be attached to an extension of the upper tractor link so that the guide is deflected upwardly in the transport position. The rake members comprise pivoted arms 16 supporting tine groups 17 and have swath formers 20 shown in the inoperative position.
Patent GB-1504735-A (GB)
Title: Fire protection of structural members
IPC: E04C3/04
Filed: 1975-03-12
Abstract: 1504735 Fire protection of structural members AVCO CORP 12 March 1975 [25 March 1974 13 June 1974] 10341/75 Heading E1K A method of protecting a flanged structural member 12 against fire comprises securing a strip of insulating material 22 to a flange edge, by mounting a wire mesh 18 to extend around the strip and frictionally engage opposed sides of the flange, and applying a fire proofing coating so as to encapsulate the wire mesh 18, strip 22, and structural member 12. The wire mesh 18 may be embedded in an edge member 24 of steel or concrete, Fig. 3.
Patent GB-541915-A (GB)
Title: Improvements in electric-acoustic transducers, particularly of the moving coil type
IPC: H04R9/02
Filed: 1940-06-14
Abstract: 541,915. Sound recording and reproducing instruments. JONES, H. H. June 14, 1940, No. 10349. [Class 40 (iv)] In a moving-coil transducer, e.g. a pick-up, the magnetic path is completed through a moving magnetic member not subject to appreciable flux variation, e.g. by designing the magnetic member so that it is magnetically saturated. The magnetic member 4 may be a short tube (with a solid end) carrying a coil 5 and mounted on a tensioned strip 8. By proportioning the size and mass of the member 4 and the stylus holder 9, the whole moving system may be balanced about the axis of the strip 8, and by adjusting the tension of the strip 8 the natural resonance of the system can be controlled. The constancy of the flux can be further improved by making the exterior of the wall of the tube spherical and of a height greater than the vertical thickness of the poletips. In a modification, Fig. 1 (not shown), the moving magnetic member is shaped to form a stylus, which may be mechanically linked to the bridge of a violin or the lip or reed of a wind instrument. Specification 256,280, [Class 40 (iv)], is referred to. Further slight modifications are described in the Provisional Specification.
Patent GB-955956-A (GB)
Title: Joining materials in sheet form
Inventor: TARNOWSKI JOSEPH
IPC: B21D39/03
Filed: 1963-03-15
Abstract: 955,956. Sheet metal joints soldering. STANDARD TELEPHONES & CABLES Ltd. March 15, 1963, No. 10366/63. Headings B3J and B3R. [Also in Division B5] A method of joining together two sheet metal members, e.g. a screen to a metal chassis in the construction of electronic apparatus, comprises forming a dimple 5 in one of the members 2, slotting the dimple at 4, inserting from the convex side of the dimple into the slot an edge 3 of the other member 1 and securing that part of the edge which appears on the concave side of the dimple. The portion of the member 1 which protrudes into the concave side of the dimple is distorted, e.g. by slitting and bending, soldered thereto or the dimple depressed from the convex side to retain the member 1 in the member 2. A pair of intersecting members 1 or a rectangularshaped member are similarly attached by producing two slots at right angles or an L-shaped slot in the dimple respectively. The width of the slot is preferably equal to the thickness of the inserted member. Synthetic plastic sheet members, e.g. partitions in containers, may be assembled using the method.
Patent GB-200577-A (GB)
Title: Process of manufacture of porous bodies, diaphragms, filters and the like of ebonite
IPC: C08L21/00
Filed: 1922-04-12
Abstract: 200,577. Wilderman, M. April 12, 1922. Filtering-media.-Porous bodies are made from powder, shavings &c. of partly vulcanized ebonite or of completely vulcanized ebonite covered with a thin layer of unvulcanized or partially vulcanized' ebonite, by bringing the powder &c. into a volume larger than it would occupy under pressure and vulcanizing. According to a modification, the ebonite powder &c. is mixed with a substance such as salt which does not combine with the ebonite, and which can be removed by solution or other means after vulcanizing. Diaphragms &c. capable of resisting alkalies, acids and chlorine may be made from the composition described in Specification 18269/08, [Class 70, India-rubber &c.]. The ebonite may be combined with metal &c. during manufacture, or plates &c. may be made with strengthening ribs, strips &c. of non-porous ebonite. The porosity may be modified by filling the capillaries more or less with substances such as barium sulphate, cement, colloids, or the plates may be employed as supports for other filtering media.
Patent GB-270276-A (GB)
Title: Improvements in and relating to folding or sectional doors
IPC: E06B3/48
Filed: 1927-04-19
Abstract: 270,276. Balland, M. M. J. April 30, 1926, [Convention date.]. Sliding doors.-Folding sliding doors and like closures comprise an odd number of panel sections A hinged together and supported in pairs by jambs B carried by ball-bearing flanged rollers C on grooved rails. The jambs are guided at their upper ends by horizontal rollers D and flanged rails. An overlapping plate or angle-iron protects the joint between adjacent panels. In closing the door, the panels are extended and all but the last one bolted in the closed position. The end panel is finally closed and bolted.