baber/WOPTO huggingface dataset:
Patent GB-1174955-A (GB)
Title: Rotatable Aerofoil Assembly
IPC: B64C27/473
Filed: 1967-04-05
Abstract: 1,174,955. Helicopter rotor blades. PARSONS CORP. 5 April, 1967 [8 April, 1966], No. 15529/67. Heading B7W. A helicopter rotor blade comprises a H-section spar, the web 12 and flanges 14, 15 of which increase progressively in thickness from tip portion, Fig. 12, to the root portion, Fig. 8, terminating at the root in a solid fitting which is formed with rotor head attachment plates 21, 22. At the tip the web 12 is cut away to accommodate a mass balance weight 42 secured to the flanges by attachments 43, and at intermediate points along the span the web is thickened locally (Figs. 9 and 11, not shown). The outer surfaces of the spar flanges are rebated for a shaped stainless steel leading edge member 17 and trailing edge skins 16 which are adhesively secured to a honeycomb core 38.
Patent GB-112758-A (GB)
Title: Improvements in or relating to Printing Presses.
IPC: B41F27/10
Filed: 1917-10-25
Abstract: 112,758. Goss Printing Press Co., (Goss Printing Press Co.). Oct. 25, 1917. Stopping and starting arrangements; printing- surfaces.-A printing-press of the kind in which the printing-plates are secured on the printing- cylinder by clamps movable longitudinally of the cylinder, is provided with means for preventing operation of the press when a plate is on the cylinder, if the clamps are not in clamping pcsition, while permitting the operation of the press if a plate is not in position on the cylinder, irrespective of the position of the plate clamps. Fig. 2 shows a plate 20 in position on the cylinder 10 but unclamped. The clamps 19, Figs. 2 and 3, are adjustably mounted on screws 18 carried by a head 13, which is movable in known manner longitudinally of the cylinder to clamp and release the plate 20, by means of an eccentric 15 operated by a tool inserted in the socket 17. A curved guard member 23 pivoted to a fixed bracket 24 is adapted to overlie the socket 17 and is provided with a part 26 extending across the outer face of the head 13, and with an arm 27 carrying an insulated spring-pressed switch contact 29 adapted to make and break contact between two terminals 31, 32 in the circuit controlling the operation of the press. A spring 35 normally holds the guard 23 in such position that the switch is closed so that the press may be operated. A bell-crank lever 41 mounted in a recess in the cylinder 10 so as to be engaged by a plate 20 is connected to a sliding rod 38 passing through one arm of a lever 36 pivoted to the head 13, the other arm of this lever being adapted to engage the part 26 of the guard 23. When a plate 20 is in position on the cylinder, as shown, the rod 38 is moved to the right, and, unless the head 13 is in plate-clamping position and the tool removed from the socket 17, the upper arm of the lever 36 turns the guard 23 against the action of the spring 35 and opens the switch. If, however, the plate 20 is not in position on the cylinder, the rod 38 is free to move to the left to permit the closing of the switch bv the spring 35 irrespective of the position of the clamps 19.
Patent GB-539735-A (GB)
Title: Improvements in ventilated food storage receptacles
IPC: F25D25/00
Filed: 1940-10-23
Abstract: 539,735. Ventilating food receptacles. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1940, No. 15578. Convention date, Oct. 26, 1939. [Class 137] A slide 13 with apertures 14 is arranged on the side 12 of a food container, corresponding apertures 11 being formed in the side so that on movement of the slide the area of the ventilating openings may be varied. The slide 13 is supported at one end by a stud 16 which engages a slot 15 in the slide, and is caused to move by rotation of a cam 17 fitting within an opening 18 in the slide and rotating about an eccentric pivot 29. The opening 18 is so shaped with enlargements 31, 32, 33 that when the knob 19 is turned to an appropriate position the portions 20, 21, 22 register with the openings, and the slide 13 may be moved outwards over the cam and knob and withdrawn from the stud 16.
Patent GB-1094143-A (GB)
Title: Improvements in and relating to catamenial garments
IPC: A61L15/16
Filed: 1965-04-13
Abstract: 1,094,143. Support for catamenial pad. T. SAIJO. April 13, 1965, No. 15757/65. Heading A5R. A garment for supporting a catamenial pad comprises a substantially rectangular band of stretchable material 1, in Fig. 1, with the edge portions 2 at the centre of the band being folded inwardly and stitched together at 3 to form a sleeve for retaining the pad, there being a strip of elastic absorbent material 5 fastened along each folded edge, and a piece of non- permeable material located but not fixed within the sleeve; to each end of the band is fastened a portion 6 of an elastic waist belt, one portion having at least two fastening members 7 which attach to the ends of the other portion to bring the band into the assembled form of a garment, in Fig. 3. The fastening device may be an open ended slot 8 at each end of the one portion which engages with corresponding plural ribs 9 on the ends of the other portion.
Patent GB-1431763-A (GB)
Title: Fluid bed apparatus with baffle load-carrying bodies
IPC: B01J8/44
Filed: 1972-04-06
Abstract: 1431763 Fluidised bed distributors and boiler apparatus PLESSEY CO LTD 23 March 1973 [6 April 1972] 15793/72 Heading B1F [Also in Division F4] Fluidised bed boiler apparatus comprises a water container e.g. jacket 64A and the upper row of pipes 70, for water to be heated by the fluidised bed, and a bed support with baffles e.g. the upper baffles 68, which prevent particles of the fluidised bed from falling through the spaces between the lower baffles. A gas burner may be provided in trough 78. The bed support may alternatively be as shown in Fig. 2 with single curved baffles or the baffles may be conical. The bed particles may be silicon carbide, silicon nitride, sand or metallic.
Patent GB-959319-A (GB)
Title: Turbine power plant
IPC: F01K23/06
Filed: 1961-05-02
Abstract: 959,319. Gas and steam turbine plant. SOC. RATEAU, and R. ANXIONNAZ. May 2, 1961 [May 2, 1960], No. 15871/61. Headings F1G and F1T. A combined steam and gas turbine power plant comprises a steam cycle including a boiler turbine at a condenser and a gas cycle including a gas turbine coupled to the steam turbine to drive a load, a combustion supplying hot gas to the gas turbine, an air compressor supplying air to the combustion chamber and boiler in parallel and a second gas turbine fed with hot gases from the boiler driving the compressor. The turbine plant, Fig. 3, comprises a compressor 2 supplying combustion air to combustion chambers 3, 3a. The combustion chamber 3a feeds a useful output gas turbine 5a driving an alternator 10 and the combustion chamber 3 a gas turbine 5 mounted on the shaft of the compressor 2. The combustion chamber 3 contains a tube vapourisation bank 8 which feeds a steam turbine 9 on the shaft of the turbine 5. The throttle control of the turbine 9 is connected to the control 4a of the fuel to the combustion chamber 3a. The combustion chamber 3a may contain a superheater or reheating tube bank. In a modification, Fig. 5 (not shown), the compression is in two stages with an interstage cooler cooled by the feed water. In this arrangement a valve controlled by-pass is provided around the combustion chamber 3 to regulate the rate of steam generation. The combustion chamber 3a, which is used to superheat and reheat the steam, also has a valve controlled by-pass. A valve is also provided to control the distribution of air flow between the two combustion chamber 3, 3a. A valve is also provided to control a by-pass containing a desuperheater between the steam inlet to the turbine and the condenser.
Patent GB-1216125-A (GB)
Title: Bulk oscillators
Inventor: SWARTZ GEORGE ALLAN
IPC: H03B9/12
Filed: 1968-04-02
Abstract: 1,216,125. Semi-conductor oscillators. RCA CORPORATION. 2 April, 1968 [5 July, 1967], No. 15877/68. Heading H3T. [Also in Division H1] Electrical microwave oscillations are generated by a semi-conductor device having an irregularity such as a transverse groove 10 in a surface of its body 12, an electric field E being applied by contacts 13, 14 to cause hole and electron flow. The body is formed of P-type semi-conductor material such as indium antimonide, indium arsenide or gallium phosphide and the contacts are a gallium-indium-tellurium alloy applied by alloying, vapour deposition or transport growth. The frequency of oscillation is determined primarily by the width of the groove, and the device can be tuned over a range of frequencies allowed by the width of the groove by the variation of an applied magnetic field having a component parallel to the groove. The oscillator may be coupled at its groove to a circuit by means of a strip line, Fig. 3 (not shown), formed from a layer (20) of good conductivity material on an insulating support layer (21) having on its other side a conducting earthed layer (22).
Patent GB-1337536-A (GB)
Title: Wheel and process for the production of same
IPC: B60B3/08
Filed: 1972-04-06
Abstract: 1337536 Making wheels; spinning; Jointing; welding by fusion DR-ING hcF PORSCHE KG 6 April 1972 [27 April 1971] 15947/72 Headings B3A B3J B3V and B3R [Also in Division B7] A method of making a wheel having a wheel centre 1<SP>1</SP> and a rim (23), Fig. 3 (not shown), comprises forming a centre having a hub 2<SP>1</SP> and disc-shaped webs 3<SP>1</SP>, 4<SP>1</SP> from a blank by non- cutting deformation, bringing the outer peripheries of the webs together by further non- cutting deformation, joining the web peripheries and securing the rim on the pan. The wheel centre is forged from aluminium or aluminium alloy and the webs (3), (4) are initially parallel, Fig. 1 (not shown). Apertures (16), (17) are formed in the webs during the forging operation. The web peripheries are brought together by a pair of rollers 18 to form a joint 19 and welded together by an electron beam gun as the wheel centre 1<SP>1</SP> rotates. The edges 5<SP>1</SP>, 6<SP>1</SP> of the webs are machined concentric with the axis of rotation X-X. A rim 23, Fig. 3 (not shown), is forged from titanium and while still hot from the forging operation or after subsequent heating is placed over the centre to be shrink fitted on it. The rim is provided with fins (28), (29), Fig. 3 (not shown), to locate the centre, the periphery of which is coated with a heathardenable adhesive 30. In alternative constructions, the web portions may be joined by riveting, screwing, upsetting or swaging and the adhesive may be omitted when securing the rim.
Patent GB-497065-A (GB)
Title: Supporting and adjustable mechanism for pivoted-sliding sashes and the like
IPC: E05D15/00
Filed: 1937-06-09
Abstract: 497,065. Flexible members adapted to form struts. CURTIS, G. L., CURTIS, E. J., and ARMSTRONG, C. A. June 9, 1937, No. 16025. [Class 80 (iii)] [Also in Group X] A regulator for a pivoted-sliding casement window comprises a chain member C<1>, Fig. 5, which is flexible in one direction only, and is attached at one end to the sash and is projected from and retracted into a guideway 34 in the fixed frame by means of a worm 62 operated by a handle 90 on the inside of the window. A curved guideway 40 is provided in continuation of the vertical guideway 34 to deflect the chain through. an angle of 90‹ into the horizontal position. As shown in Figs. 4, 8, and 9, the chain comprises tension links 48, Fig. 9, connected by pins 52, and enclosed by inverted U -shaped members A, Fig. 8. The ends of the members A abut to prevent sagging of the chain in its extended position, and recesses 64 are provided for the reception of the pins 52. Bending of the chain during its passage through the guideway 40 is provided for by inclining those portions 66 of the ends of the members A which are below the recesses 64. The web portions 54 of the members A are formed with inclined grooves 58 which are engaged by the thread of the worm 62.
Patent GB-497066-A (GB)
Title: Improvements in and relating to low-and medium-temperature carbonisation processes and apparatus
IPC: C10B37/04
Filed: 1937-06-09
Abstract: 497,066. Coke ovens. PUENING, F. June 9, 1937, No. 16032. [Class 55 (i)] In a narrow coking chamber for low or medium temperature coking, the charge is consolidated by compacting screws which are lowered into the chamber which is then substantially filled, the screws being then rotated to effect a downward pressure as they are withdrawn upwardly. Coking chambers 13, 14 are disposed between heated walls 10, 11, 12 which can be moved apart to facilitate discharge, and which may have vertical ribs to divide the chambers into vertical compartments. Coal is fed from a jig feeder 30 and is tamped down into the coking chambers by compacting screws 23 carried by rods 35 suspended from a platform 34, the rods being rotated by gearing 36 and passing through bearings 41 mounted on a platform 42 suspended by chains 43 from platform 34. The rods may have fins 40 to feed the charge downwardly. In operation, the platform 34 is lowered by motor 45, gearing 51, and cables 48, until the guiding platform 42 rests on the oven, after which the platform 34 above is lowered, the suspension chains being wound up on self-winding drums 46 rotated by helical springs until the screws reach the chamber bottom. The chambers are then filled with coal up to the girders 15, and the screws rotated by motor 38, the platform 34 being gradually raised, and the coal being tamped down. After discharge, any coke adhering to the chamber walls may be removed by chisels 54 suspended from beam 55, these chisels being described in Specification 497,067. Specification 385,038 also is referred to.
Patent GB-654460-A (GB)
Title: Improvements in or relating to collapsible bags and like containers
IPC: B65D33/02
Filed: 1948-06-15
Abstract: 654,460. Paper and like bags. RANDALL, J. W., and DICKENSON & CO.. Ltd., J. June 15, 1948, No. 16035. [Class 94(ii)] In manufacturing reinforced flat-bottomed collapsable bags, a web W, Fig. 1, of flexible material, which may be transparent, is mechanically fed to bag-tube forming mechanism 16, 19, while webs R, R<SP>1</SP> of comparatively stiff material are formed, in mechanisms 15 and 18 respectively, into respective pieces 3 and 4 which are suitably creased or otherwise weakened for subsequent folding, and the said pieces are then brought into face-to-face relation with each bag-tube length of the flexible material so as to become united with the latter in the formation of the bag-tube. Finally, one end of the formed bag-tube and the corresponding parts of the reinforcing pieces are folded and sealed by mechanism 21 to complete a bottom for the bag, so that when the latter is opened the said pieces reinforce the bottom and the opposed longitudinal walls of the bag. The reinforcing pieces are secured to the web by strips a, b, c, d, Fig. 2, applied to the web by means 13, Fig. 1, so as to extend in two transverse rows across the bottom end of each bag length. The piece 3 is imposed on the strip a, when a first gusset-folding in the means 16 brings the strips b face upwards above the piece 3 and turns the strips c downwards to contact the piece 3. The piece 4 is then laid upon the upturned strips b, when the second gusset-folding in the means 19 turns the strips d downwards to contact the piece 4 and brings the longitudinal edges of the tube into overlapping mutually adhering relation. The completed bag, of the plain satchel type, is shown in Fig. 3. In a modification, a single piece of stiff material is used for reinforcing the bottom and one longitudinal side of the bag. The Specification also describes various modifications of the method as applied to the manufacture of block-bottom bags having both gusseted and plain side walls. The reinforcing pieces are shown incorporated either in the front and back walls, or in the side walls whether gusseted or plain. When the front and rear walls of block-bottom bags are reinforced, an additional reinforcing patch is inserted in the bottom of each bag, but this patch may be omitted when the side walls are reinforced. The flexible and reinforcing materials may be secured together by heatsealing adhesive. For carrying the bags, apertures may be cut in the extended reinforcing strips.
Patent GB-693696-A (GB)
Title: Improvements in heavy current electric circuit breakers for aircraft
Inventor: WELCH DOUGLAS FRANCIS
IPC: H01H33/14
Filed: 1950-06-27
Abstract: 693,696. Automatic circuit-breakers; air-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., WELCH, D. F., and GRIEVE, A. June 15, 1951 [June 27, 1950], No. 16037/50. Class 38 (v) A circuit-breaker which is capable of breaking, in air currents, of at least 2000 amps, at not more than 500 v. comprises a plurality of series breaks, the number of breaks being such that the voltage per break is not greater than 40 v., the breaks being simultaneously operable and arranged to be bridged by one or more extraneous bridging contact pairs which open before and close after the series breaks. In the form shown, an automatic circuit-breaker has six series connected breaks 3, 3a-8, 8a between conductors 1, 2 which are also bridged by a contact 14. Contacts 3-8 are arranged at the corners of a polygon and contacts 3a-8a are arranged on three cross-bars 9-11, which together with contact 14 are supported by an insulating plate 24 urged downwards by four springs 27 arranged between a fixed plate 29 and the plate 24. The latter is prevented from moving down under the bias of these springs because contact 14 is urged upwards by a stronger spring 30 compressed between the plate 29 and a U-shaped member 34a to which is pivoted at 35 a lever 36 having a fixed pivot 37. A lever 38b, pivoted at 38a to a plunger 31 which is secured to contact 14, is also connected by a spindle 39a to the lever 36. Depression of a lever 48 about a pivot 49 through a flexible diaphragm 18 pushes the knee 44a of a toggle 42, 43 to the right to straighten the toggle. The upper end of lever 43 is pivoted at 44 to a latch lever 46 pivoted at 47 and the lower end of lever 42 is pivoted to the spindle 39a so that straightening of the toggle causes the lever 46 to rotate clockwise until its free end is restrained by a catch 50 on a latch plate 22 pivoted at 23 and urged to latching position by a spring 51. Thereafter, the spindle 39a is pushed down so that lever 38b pivots about a point 16a on the frame 16. The plunger 31 is therefore depressed and the series contacts close, the contact 14 being closed later by a further pivoting of lever 38b about pivot 16a against the action of a spring 38c. The latch plate 22 may be moved counter-clockwise about its pivot, to release the lever 46 to open the contacts under the action of spring 30 and springs 40 connected to spindle 39a, in several ways. (1) on unbalance, a coil 53 attracts an armature 56 to release a pawl 58 so that a lever 57 is moved clockwise by a spring 59 about a pivot 57a to trip the plate 22. (2) A distant trip mechanism has a coil 61 which when energised attracts an armature 62 to deflect the plate 22. In addition the plate may be deflected on the occurrence of reverse currents or by a bimetal overload release.
Patent GB-212509-A (GB)
Title: Improvements relating to means for cooling the air to be extracted from "surface condensers"
IPC: F28B1/02
Filed: 1923-06-20
Abstract: 212,509. Soc. des Condenseurs Delas. March 9, 1923, [Convention date]. Surface condensers.-In order to cool the air withdrawn from a surface condenser it passes through a chamber in the lower part of the condenser shell traversed by some of the condenser tubes and provided with baffles so arranged that the air flows in a zig-zag course passing over the tubes at right-angles thereto. In the arrangement shown the chamber extends from one end of the condenser to a central portion H therein situated above the condensate outlet J. The air passes through an opening M in the partition H and between the baffles m, m<1>, m<2>, n<1>, n<2> to the outlet K.
Patent GB-481278-A (GB)
Title: Upright, continuously operating chamber ovens and process for the production of various gas mixtures, e.g. town gas or synthesis gas, and coke from solid bituminous fuels
IPC: C10B1/04
Filed: 1936-06-08
Abstract: 481,278. Coke ovens ; coking processes. TRIGGS, W. W. (Braunkohlenund Brikett- Industrie Akt.-Ges. Bubiag) June 8, 1936, No. 16050. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 8, 1936.] [Class 55 (i)] A continuously operating chamber oven is adapted for the production of town gas, synthesis gas, water gas and coke from bituminous coal, the distillates formed in the upper part of the chamber passing downwardly with the coke, the water gas obtained by the admission of steam to the lower part of the chamber reacting if required with the distillates from the upper part. The composition of the gas is controlled by regulating the proportion of the heating surface of the upper part to that of the lower part by regulable gas withdrawal in combination with regulable heating of the pre-distillation zone, distillation zone, and gasefication zone, and steam introduction at various levels. Gases may be drawn off through openings in the sides of the oven or through ducts arranged in the charge. The oven comprises a drying zone, a distillation zone 17, a cracking zone 18, and a gasefying zone 19, a coke cooling extension 29 being provided. Steam is introduced through openings 31a in a septum 31.. Within the structure at the ends of the chamber are shafts 32 having slot-like openings 35 through the chamber wall through which gas may be withdrawn, at any desired level. Any desired slot may be closed by stoppers 36 inserted through corresponding openings 37 in the outer wall 38. Gas withdrawal pipes 42 are arranged at various levels, and to enable different gases to be withdrawn simultaneously separate superposed gas collecting spaces may be formed by inserting slide plates 44 through slots 45. Forwithdrawing the distillates from the interior and colder part of the charge, gas withdrawal pipes 47 leading from internal chambers 48 are provided having slots in their side walls. The heating of the charge may be assisted by circulating gas withdrawn from the charge being heated and returned to the charge. In Fig. 2a, the gas is withdrawn through a central tube 20, steam being admitted through regulable openings 21 and 22 in the inner and outer walls at various levels. Steam may be admitted at higher levels to decompose hydrocarbons or to generate water gas in the hotter marginal parts of the charge.
Patent GB-430543-A (GB)
Title: Flexible pipe couplings
IPC: F16L17/04
Filed: 1934-05-30
Abstract: 430,543. Pipe joints. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Hayes, J. H. ; 30, Rockefeller Plaza, New York, U.S.A.) May 30, 1934, No. 16097. [Class 99 (i)] In a pipe joint in which a sealing ring 1 has a series of separate annular sealing projections 5 embracing the end of each pipe and pressed against the pipes by reason of fluid pressure in a groove 6, the inner faces are perpendicular to, and the outer faces inclined to the axis of the ring. The edges 3<a> of the ring are normally of greater diameter than the pipes but are compressed thereon by the clamp 8. The ring may have an annular cavity 2.