baber/WOPTO huggingface dataset:
Patent GB-683189-A (GB)
Title: Improvements in brake systems
IPC: B64D35/00
Filed: 1951-03-21
Abstract: 683,189. Aircraft propeller brakes. GENERAL MOTORS CORPORATION. March 21, 1951. [April 1., 1950 ; July 1, 1950] No. 6729/51. Class 4. [Also in Group XXXIV] A brake system for a prime mover drive comprises a brake which is applied when the prime mover is inoperative, and a prime moverdriven pump and an auxiliary pump, the fluid pressure from one or the other of which (dependent upon the speed condition of the prime mover) can be applied to release the brake. The invention is described with reference to an aircraft propeller drive. In the form shown in Figs. 1 and 2 the propeller C is driven by a gas turbine A through reduction gearing, one pinion 24 of which is geared to the brake 50 comprising interengaging cone elements 66, 67, which are held engaged when the engine is inoperative by compression springs 73, 74. The element 67 is connected to a pinion 52 meshing with the reducing-gear pinion 24. At starting the springs 73, 74 are over-ridden to disengage the brake by compressed air delivered through a pipe 38 from the starter 31 and acting on a piston 110. When the engine is running normally, oil from an engine-driven pump 41 is supplied through a pipe 48 and tube 96 to a space 84 between a piston 62 and disc 68 to maintain the brake disengaged. Owing to the high speed of the brake, a centrifugal head is generated in the oil in the space 84 to assist in maintaining disengagement of the brake elements. If the propeller tends to reverse due to over-feathering the inclined faces of cams 151, 152 engage and move the element 66, and thus the element 67 and shaft 69, to the right, thus further compressing the springs 73, 74 to give a self-energizing effect. The brake elements are cooled when engaged by oil from the pump 41, which passes through radial openings 128, 130, 132 which are aligned when the elements are engaged, but are out of alignment under other conditions. Fig. 5 shows an alternative arrangement for contra-rotating propellers, the brake elements 310, 326 being disengaged against the action of compression springs 338 by oil supplied through an opening 344 to a chamber 342 from an auxiliary pump connection 386 at starting, or the main pump connection 382 when the engine is running normally. Oil for cooling the brake elements passes through radial openings 352, 354 which are in line when the elements are engaged. A self-energizing action is obtained by cams 318, 320 as in the former arrangement. Specification 685,340 is referred to.
Patent GB-1003940-A (GB)
Title: Propellers, and convertiplanes equipped therewith
IPC: B64C27/28
Filed: 1964-02-18
Abstract: 1,003,940. Variable pitch and variable diameter propellers; convertible aircraft. A. M. YOUNG. Feb. 18, 1964, No. 6777/64. Headings B7V and B7W. A variable diameter screw propeller blade has an inboard section 20 (Figs. 3 and 5) mounted in a hub 18 and driven by a shaft 17, an outboard section 24 telescopically mounted in the inboard section and connected to a retracting mechanism to which torque is imparted by the drive shaft 17 to tend to retract the outboard section in opposition to centrifugal force. Relative movement of the sections may be prevented by a locking device. As shown in Fig. 3, cables 21, 22 attached to the outboard section are wound round a drum 25 mounted in bearings 29 on the hub and having a gear 36 meshing with a gear 35 attached to the planet wheels 31 of an epicyclic gear of which the ring gear 32 is fixed to the hub and the sun wheel 30 is fixed to the shaft 17. In another embodiment (Fig. 5) the shaft 17 drives by bevel gears 40, 41 a lead screw 37 on which is threaded a nut 38 fixed to the outer section. Alternatively (Fig. 6, not shown), the drive shaft terminates in a lead screw engaging a nut connected to the outer section by a cable passing over a pulley and splined to engage a hollow shaft depending from the hub. Two such propellers, each mounted on an engine nacelle, may drive a convertible aircraft (Fig. 7), being mounted on freely tiltable wings, or being freely tiltable relative to fixed wings (Fig. 9, not shown), or a single propeller may be freely tiltably mounted between the fuselages of a twin fuselage aircraft (Fig. 10, not shown). Tilting, and control in the helicopter mode, is effected by cyclic and collective pitch variations by rods 58, 51 respectively (Fig. 2) through a swash-plate 55. Specification 885,652 is referred to.
Patent GB-949529-A (GB)
Title: Grids for vapor-liquid contact apparatus
IPC: F28F25/08
Filed: 1962-02-21
Abstract: 949,529. Gas-liquid contact columns. FRITZ W. GLITSCH & SONS Inc. Feb. 21, 1962 [March 3, 1961], No. 6809/62. Heading B1R. A grid element for vapour-liquid contact apparatus comprises a structural member including a horizontal portion, formed with a plurality of spaced openings therein constituting upright passages, characterized in that the member is provided with a plurality of spaced reinforcing ribs extending from the horizontal portion, and the openings in the horizontal portion extend into the ribs and thus form horizontal passages therethrough of smaller area than the upright passages. The ribs alternately extend in opposite directions from the horizontal portion. Preferably the horizontal passages are more than one-tenth and less than one-half of the combined area of the upright passages. Fig. 5 shows a grid section 14 formed initially from a flat sheet having a multiplicity of relatively large openings 15 of any desired configuration formed in closely spaced relationship. The section is bent longitudinally upon itself to form a plurality of upright, reinforcing, parallel ribs 16 and 17 which are connected by horizontal elements or webs 18. The openings are of such size that opposed portions or segments 19 and 20 extend into the legs 16 and 17 forming horizontal passages. Each grid section may be constructed of a plurality of elongate narrow members 21, or may be a one-piece construction. The angles between adjacent layers may be 30 degrees, 45 degrees, 60 degrees, or 90 degrees.
Patent GB-1174351-A (GB)
Title: Multi-Shaft Chimney Stone or Brick
Inventor: SCHIEDEL FRITZ
IPC: E04F17/02
Filed: 1967-02-13
Abstract: 1,174,351. Chimneys. F. SCHIEDEL. 13 Feb., 1967 [25 June, 1966], No. 6846/67. Heading F4J. A chimney brick 1 contains a plurality of round shafts overlapping each other, such that round chamotte pipes 2 located in the shafts leave an air gap between the inner surface of said shafts and the outer surface of the pipes 2 corresponding to the gap between the pipes at the connection zone 3. A twist of rock wool 5 is wound round the inner pipes 2 and crosses over between the inner pipes.
Patent GB-1034437-A (GB)
Title: Preparation of microcapsules
IPC: B01J13/08
Filed: 1963-02-20
Abstract: 1,034,437. Microcapsules. GEVAERT PHOTO-PRODUCTEN N.V. Feb. 20, 1963 [Feb. 20, 1962], No. 6860/63. Heading B8C. Solid particles and liquid droplets of a sparingly water-soluble or water-insoluble material are encapsulated in a mantle of a gelatine derivative which is insoluble in acid aqueous medium but soluble in medium of a higher pH by one of the following methods: (i) The material to be encapsulated is dispersed in an aqueous solution of a gelatine derivative of the said type and the dispersion is acidified to cause the gelatin derivative to coacervate and encapsulate the dispersion particles in a mantle which may be subsequently gelled, e.g. by cooling, and, if desired, hardened, e.g. by treatment with chrome alum. (ii) The material is dispersed in an aqueous solution of gelatin to which a reagent is subsequently added to react with the gelatin to form a derivative of the abovementioned type and which is caused to coacervate by acidification and encapsulate the dispersion, subsequent treatment being as in (i) above. (iii) The material is dispersed in an aqueous dispersion of the gelatin derivative which is already coacervated but not gelled whereby encapsulation of the particles occurs and subsequent treatment being as in (i) above. Suitable gelatine derivatives include the products of the reaction of gelatin with aliphatic and aromatic carboxylic acid anhydrides, compounds containing a reactive halogen atom, e.g. sulphonyl chlorides, sulphonyl fluorides, carbonyl chlorides, carbonyl bromides, chloroformates and other types of compound containing reactive halogen atoms, isocyanates and N-arylvinyl sulphonamides numerous specific examples of such compounds being given. Materials which may be encapsulated include those suitable for use in photography, e.g. N- hex - decyl - 1 - hydroxy - 2 - naphthamide (colour coupler) encapsulated in a gelatinesilver halide emulsion. Other specific examples relate to the encapsulation of paraffin oil, toluene and carbon tetrachloride.
Patent GB-657727-A (GB)
Title: Method of cold working hollow metal objects
IPC: C21D7/12
Filed: 1949-03-14
Abstract: 657,727. Altering physical structure. AKTIEBOLAGET BOFORS. March 14, 1949, No. 6913. Convention date, March 30, 1948. [Class 83 (iv)] Hollow objects capable of being cold workhardened, have their elastic limit raised and may also be altered in shape by expanding with high explosives whilst the ends of the object are open. A steel ring 4 is immersed in a water filled container 1 and supported on wooden blocks 3 in such a manner that an immersed explosive charge 5 projects beyond both its ends. The charge may have varying diameter along its length proportioned to the varying diameters of the ring and may be detonated centrally for producing barrelshaped deformation or may be detonated at one end 6 for producing conical deformations. Where a cylindrical ring is. required to retain its cylindrical shape the charge may have circumferential grooves in line with the ends of the ring. T.N.T., hexyl, penthrite and nitrolite are referred to as suitable explosives.
Patent GB-542028-A (GB)
Title: Improvements relating to cowling inspection plate or like fasteners
IPC: B62D25/12
Filed: 1940-04-17
Abstract: 542,028. Fastenings. JOYNT, J. C., and HIGGS, G. W. April 17, 1940, No. 6932. [Class 44] In a fastening for aeroplane cowlings and like uses, a stud A rotatably carried by the cowling A<1> has mutilated or segmental screw threads or ribs adapted to engage with corresponding segmental threads or ribs. in a socket B fixedly mounted on the supporting structure B'. The stud is inserted to the requisite extent and then rotated through 90 degrees to effect engagement this rotation also giving a tightening action when screw. threads are used. The stud is held against accidental release by a cross bar 6 slidable in slots 7 in socket B and engaging a transverse notch in the end of the stud under action of a compression spring 4. The stud shown is rotated by screwdriver or other implement inserted in a crossslot in the stud head, and release of member 6 is automatically affected on application of the implement by means of a plunger 9 slidable on a bore in the stud, the upper end normally projecting into the cross-slot when its lower end bears against bar 6. When the cowling &c. is detached, the stud is held against accidental rotation from the position in which it can be entered into the socket by a U-spring 11 embracing a fixed thimble 10 and projecting through slots therein into engagement with flats on the stud. The attachment flange of the thimble may have index marks such as depressions or projections A' to indicate, in conjunction with the cross-slot in the stud head, whether the stud is in locked or unlocked position. The head of the stud may project above the flange of the thimble as in full lines Fig. 1 or may lie flush in a cupped part C of the thimble as shown dotted. A modification is described in which the stud is detachable and the outer end of the plunger lies within the bore so that it can only be operated by the use of a specially shaped key passed through a corresponding keyhole in the stud head and also used for rotating the stud.
Patent GB-231160-A (GB)
Title: Improvements in calculating apparatus
IPC: G06G3/00
Filed: 1925-03-16
Abstract: 231,160. Fagerholm, P. E. March 22, 1924, [Convention date]. Logarithmic calculators.-The summation of the setting movements is effected by toothed gearing including epicyclic pinions the translational motions of which are due solely to the movements of their respective setting members while the rotary motions convey the movements of the other setting members to the result indicator. As shown in Fig. 1, the setting pointers 26, 27, 28 are loosely mounted on a shaft 19 and are provided with rotary spindles 29 carrying pinions 30, 31 in gear as shown with internal and external gear wheels 24, 25 secured to discs 20 - - 23. A setting pointer 36 is fixed to the lowermost wheels 20. The results are shown by a stationary index 39 and graduations on the dial 23. The Specification as open to inspection under Sect. 91 (3) (a) also describes another arrangement, shown in Fig. 1 (Cancelled), wherein the spring-controlled results dial 16 is connected by a cord 10 with three setting pointers 4, 5, 6 movable along scales 1, 2, 3 the cord being fixed at 11 and passing over pulleys 12, 13, 14 and around pulleys 7, 8, 9 carrying the pointers. This subject-matter does not appear in the Specification as accepted.
Patent GB-141176-A (GB)
Title: Improvements in catches or fasteners for bedsteads, sofas, chairs, and other furniture and the like
IPC: F16B12/54
Filed: 1919-03-21
Abstract: 141,176. Coleman & Co., D. W., and Jones, W. March 21, 1919. Stud-and-socket fastenings.-Relates to catches of the type in which a headed or grooved stud on one part to be fastened is adapted to be pressed into a female member on the other part, and secured therein by a spring-pressed perforated bolt engaging with the neck of the headed stud, and comprises improved catches of this character for wooden or like parts of bedsteads, sofas, chairs, or other articles of furniture, &c. The female member, as shown in Fig. 3, comprises a sliding bolt 6 of circular section let into a recess in the woodwork 8, the bolt being flattened and cut away at 7 to engage, under the influence of a spring 11, with the reduced neck 3 of the stud member 1. The stud member may be provided with a screw shank 4 and with perforations 5 for driving it into the woodwork 9 by the aid of a small tommy-bar. The sliding bolt has a projecting part so that it may be depressed by hand to release the catch, the projecting part being shouldered at 13 and encircled by a plate 12 serving as a stop. In the modification shown in Fig. 4, the sliding bolt is located in an aperture passing completely through the woodwork 8, and is retained in position by a plate spring 15 bifurcated at the end to engage a reduced neck on the end 14 of the bolt. Fig. 6 shows the catch applied to the dropside rail of a cot. By depressing the sliding bolt 6 and raising the frame 18, the frame 18 may be lowered on its pivot 19.
Patent GB-1524841-A (GB)
Title: Methods of printing cellulosic fabrics
IPC: D06M15/423
Filed: 1976-05-20
Abstract: 1524841 Transper printing of cellulosic materials TOOTAL Ltd 20 May 1976 [20 Feb 1975] 7113/75 Heading D1B Cellulosic textile fabrics (containing at least 33% cellulosic fibres) are transfer printed by impregnating the fabric with an aqueous solution of crease-resisting agent as defined, and whilst the fabric is wet printing with a reactive dye as defined, by a wet transfer printing process under heat and pressure, and subsequently heating the fabric to a temperature sufficient to bring about fixation of the dye and insolubilisation of the creaseresisting agent. The wet fabric preferably contains 50% to 200% by weight of moisture and heat and pressure are effected for 15 seconds to 2 minutes. Alternatively the crease resisting agent and catalyst therefore are applied to the transfer paper printed with reactive dye and the paper is then placed in contact with the wet cellulosic fabric, at 150‹-210‹C for 3 minutes to 30 seconds to fix the dye and cross link the crease resist agent.
Patent GB-792917-A (GB)
Title: Improvements relating to collapsible bunkers for the storage of coal, coke or the like concrete materials
IPC: B65D6/16
Filed: 1955-03-11
Abstract: 792,917. Coal &c. bunkers. LAMB, HINGLEY & CO., Ltd., and LAMB E. G. June 11, 1956 [March 11, 1955], No. 7140/54. Class 20(1) A collapsible coal &c. bunker is in separate panels assembled by pushing the ends of the U shaped rod 15 in a roll-over 11c of the front panel 11, Fig. 3, resting on a bottom 21. into a roll-over 9a of each side panel 9 and the similar rod ends of the back panel 14 are similarly pushed into the other ends of the roll-over 9a, the assembly then being secured together through bolts in the various holes and locked by nuts. The back panel 14 Fig. 4 is provided with a lid 10 secured on lugs 17. A baffle plate 18 with a roll-over to accommodate a locking rod 19 also secures the side panels together and to the front panel. A gap 11a, is closable by a sliding up door 12 which stays up or down by frictional tapers in the inturns 13b at top and bottom position.
Patent GB-976083-A (GB)
Title: Gas purification means
IPC: C10K1/20
Filed: 1961-02-27
Abstract: A sulphur-containing iron ore, e.g. pyrites, is desulphurized to render it suitable for use as a gas purification agent by roasting it for between 10 seconds and 6 minutes at a temperature between 550 DEG and 850 DEG  C. under oxidizing conditions, the time of roasting being so chosen that substantially no shrinking of the ore takes place.  "Shrinking" is defined as cohesion of the oxide formed to a slag-like form.  The roasting can be carried out between 550 DEG  and 600 DEG  C. in a rotary furnace or between 750 DEG  and 850 DEG  C. in a fluidizing furnace.  If the gas to be purified contains hydrogen cyanide the oxide is treated with water or an aqueous solution of a base, preferably an alkali metal hydroxide, carbonate or bicarbonate or ammonia and the water or aqueous solution removed by filtration. After roasting and any further treatment the ore may be granulated with a binding agent, e.g. sulphite lye, and/or a filler, e.g. saw dust and/or lime slurry. German Specification 818,545 is referred to.
Patent GB-904672-A (GB)
Title: Metal forming
IPC: B21D26/08
Filed: 1960-03-01
Abstract: 904,672. Stamping. OLIN MATHIESON CHEMICAL CORPORATION. March 1, 1960 [March 23, 1959], No.-7228/60. Class 83 (4). A method of working metal with an explosive is characterized by transmitting the force of an explosive charge to said metal through an elastomeric medium. In an embodiment a stainles steel tube 1 is filled with elastomeric plugs 2, 3 and 4 of natural, vulcanized or synthetic rubber, e.g. vinyl chloride resin. The plug 3 is provided with an internal chamber 5 for the explosive capsule 6, containing, e.g. 80% by weight nitro cellulose and 20% by weight nitroglycerin. The assembly is placed within a split die 9 provided with die cavities 12 and annular grooves 15 for receiving steelsealing inserts 16. The die assembly is placed within an hydraulic press capable of exerting a pressure of e.g. 100 tons on the die assembly and the charge is ignited to form the required bulge 19 in the tube. The pressure generated by the explosion is gradually released by slowly relieving the clamping pressure or by providing bleeding means in the die portions or seals. In another embodiment a sheet metal blank 30 is cupped by placing it in front of a die 28 mounted against a sealing insert 23 in a die-holder 20 having a combustion chamber 21, Fig. 6, containing an elastomeric plug 31. A cartridge 27 and an elastomeric plug 32 are placed in a chamber extension 24. In a further embodiment wooden inserts 33 are placed on each side of the elastomeric plug 3 containing the explosive capsule 6, Fig. 7, and hard rubber inserts 34 are placed between the wooden inserts 33 and the sealing inserts 16.
Patent GB-1167468-A (GB)
Title: Sheet Panel Wall Assembly and Method of Making
Inventor: GREGOIRE RESTA SULLIVAN
IPC: E04B2/72
Filed: 1968-02-14
Abstract: 1,167,468. Making fasteners; bending. GREGOIRE ENG. & DEVELOPMENT CO. 14 Feb., 1968, No. 7275/68. Headings B3A and B3E. [Also in Division E1] In a break-forming method of manufacturing a metal channel of triangular cross-section, the base 26 of the partly formed channel, which may be of W-section as in Fig. 7, is outwardly deformed by a tool 30 so as to close the margins of the sides 28 towards each other as in Fig. 8, the thickness of the tool 30 being no greater than the width of the desired gap. By this method the desired gap can be less than the spring back from the closed gap position of the sides of a similar channel made by a conventional breakforming method.
Patent GB-1432741-A (GB)
Title: Metering apparatus
IPC: G01F11/04
Filed: 1974-02-18
Abstract: 1432741 Dispensing measured volumes of liquid ALFA LAVAL AB 18 Feb 1974 [19 Feb 1973] 7358/74 Heading B8N [Also in Division B1] Metering apparatus comprises a pair of metering chambers 3, 4 in which a piston 2 is reciprocable between two end positions, each of the chambers 3, 4 having a fluid inlet 5, 7 and a fluid outlet 6, 8 controlled by respective shut off valves 13, 14, 15, 16, sensing means 24, 25 for sensing when the piston is adjacent each of its end positions and for initiating adjustment of the valves to return the piston to its opposite end position, and delay means 27, 28 connected to the sensing means for delaying the adjustment of the valves for a predetermined period of time commencing with the sensing of the piston by one of the sensing means. As described the piston carries a magnet 26 which causes a movable member, e.g. 30, in the sensing means to contact a fixed member 29 when the piston approaches and thus to complete an electrical circuit. The circuit includes a delay device, e.g. 27, comprising an electronic tiner 33 and an AND circuit 34, and connects with a valve control unit 21. In operation with valves 13, 16 open and valves 14, 15 closed fluid is delivered by centrifugal pump 11 via conduits 9 and 5 to the chamber 1 and fluid is ejected by the piston from chamber 4 via conduit 8 and outlet 12. When the means 25 senses the piston the electrical circuit is closed, and after a predetermined delay controlled by the device 28 a signal reaches the control unit 21 causing it to close valves 13 and 16. A short time later valves 14, 15 are opened and chamber 4 fills as chamber 3 is emptied. In a second embodiment two pairs of measuring chambers are provided for different liquids and of different lengths. The corresponding sensing means of the measuring chambers are connected in series with a common delay means so that accurately measured volumes of the liquids can be delivered to a common outlet where they mix together.