baber/WOPTO huggingface dataset:
Patent GB-880616-A (GB)
Title: Improvements in or relating to aircraft breathing systems
Inventor: YOUNG DAVID HERBERT
IPC: A61M16/00
Filed: 1959-02-18
Abstract: 880,616. Respiratory appliances. KIDDE CO. Ltd., WALTER. Feb. 12, 1960 [Feb. 18, 1959], No. 5671/59. Class 81 (2). [Also in Group XXIX] A pressure control system for use in high-altitude aircraft has means for rapidly changing the regulated pressure from one valve to another. The pressure control valve 15 is opened by a member 20 which is supported on two diaphragms 18, 19, of which the lower one is of smaller area than the upper one. This member is urged downwards by a spring 17, to tend to open the valve 15, and the valve is closed when the outlet pressure, acting on the diaphragms, is sufficient to overcome the spring pressure. If the space between the diaphragms is vented to atmosphere, only the lower diaphragm 19 is effective, and the outlet pressure is at a high value, but if the space is connected to the outlet pipe 23, the lower diaphragm becomes ineffective and the gas is delivered at a lower pressure owing to the greater area of the diaphragm 18. The control of the above operation is performed by a master control valve assembly 6, which is connected to the space between the diaphragms 18, 19 and to the outlet pipe 23 by pipes 62, 63 respectively. A double-ended valve member 60 is so placed that when it is raised, by a spring, communication is established between pipes 62, 63, and the regulating valve supplies gas at the lower pressure. When the ambient pressure falls, however, a bellows 57 expands until it snaps over a spring 58 and, by means of a rod 61, presses the valve 60 down to its lower position, in which the pipe 62 is vented to atmosphere through a port 64. In this embodiment it is also possible to effect the changeover manually by actuating a handle 67 which moves the rod 61 through a lever 65. In each case, however, the effect is to bring the lower diaphragm 19 into use to cause the supply of gas at the higher pressure. In a further embodiment, the position of the two diaphragms is interchanged so that the outlet pressure is at its lower value when the space between the diaphragms is vented and, in this case, the master control valve is modified to act in a corresponding manner. A third embodiment is generally similar to that described above but it has an additional control member which, after a predetermined time interval, dependent on the passage of gas through a choke tube into a chamber, resets the master control unless further decrease of ambient pressure has occurred. Specification 828,362 is referred to.
Patent GB-664847-A (GB)
Title: Improvements in closures for containers such as jars, bottles, collapsible tubes, or the like
IPC: B65D35/42
Filed: 1949-03-02
Abstract: 664,847. Closures for collapsable tubes &c. UNIVERSAL METAL PRODUCTS, Ltd., and BIDDULPH, M. Feb. 20, 1950. [March 2, 1949] No. 5685/49. Classes 66 and 125(iii). A nozzle extension d screws on to the end of a collapsable tube, or a jar or bottle, and is integral with a strap f and a cap e which is thus held captive, and which fits on the extension d, which may hold a sealing disc c in place, or the outlet may be sealed by a metal diaphragm which may be perforated to open the tube. Alternatively, the tube may be closed by a screw stopper, and a cap, captive to the neck of the tube may fit both the outer end of the stopper and the outer end of the neck when the stopper has been removed. Specification 649,559 is referred to.
Patent GB-307019-A (GB)
Title: Improvements relating to drive chains
IPC: F16G13/04
Filed: 1929-02-22
Abstract: 307,019. Morse Chain Co., (Assignees of Morse, F. L.). March 1, 1928, [Convention date]. Driving-chains with separate joint pins.-The joint pin 3 of a driving-chain is made of segmental cross-section, the curved surface bearing against a corresponding surface in the following link. In the form shown in Fig. 2 the segment is rather less than a semicircle. The chord of the segment bears on a flat face on the leading link and the necessary clearance is provided in the following link. The segment may be rather more than a semicircle. Forms are also described in which the flat face is formed in the following link and in which a wear-resisting bushing is arranged about the round side of the pin. The pintle may be arranged so that the amounts of metal on each side of it are approximately the same, the centre of the rotation being correspondingly displaced from the median line of the tooth.
Patent GB-1393493-A (GB)
Title: Sanitary towels and tampons for feminine hygiene
IPC: A61L15/18
Filed: 1973-02-06
Abstract: 1393493 Sanitary towels; tampons L'OREAL 6 Feb 1973 [7 Feb 1972] 5898/73 Heading A5R A deodorant sanitary towel or tampon, pad napkin or bandage comprises absorbent material having periodic acid absorbed therein over at least a part of the surface of the material adapted to contact the vaginal mucous membranes.
Patent GB-542500-A (GB)
Title: Improvements relating to the production of cyclic hydrocarbons
IPC: C07C5/41
Filed: 1940-04-02
Abstract: 542,500. Naphthenic hydrocarbons. ANGLOIRANIAN OIL CO., Ltd., FAWCETT, E. W. M., and STEINER, H. M. E. April 2, 1940, No. 5945. [Class 2 (iii)] Paraffin hydrocarbons containing 5 or more carbon atoms in the molecule are converted into naphthenic hydrocarbons by a two-stage continuous process which comprises a first stage in which the paraffin hydrocarbons are contacted with chromic oxide or molybdic oxide or other known dehydrogenating catalyst of Sub-group A of Group III of the Periodic Table at a temperature within the range 400‹-700‹ C. under a pressure in the range 1-100 atmospheres, to produce a re-action product comprising aromatic hydrocarbons and hydrogen, and a second stage in which the re-action product is contacted with a hydrogenating catalyst under conditions of -temperature and pressure favourable to the conversion of the re-action product into naphthenic 'hydrocarbons. If desired additional hydrogen may be added after the first stage and before the re-actants are passed to the second stage. The second stage is preferably carried out at a temperatures of 100‹-400‹ C. and a pressure of 1-100 atmospheres. ' The catalysts used for this second stage are of two types (1) a metal such as finely divided nickel or copper which may be supported on a porous carrier such as kieselguhr or alumina gel in which case the treatment is carried out at 100‹-300‹ C. and at pressures of 1-50 atmospheres. (2) A sulphurresistant metallic oxide or sulphide such as molybdic oxide or molybdenum disulphide, or mixtures such as mixed nickel or tungsten sulphides in which case the treatment is carried out at 200‹-500‹ C. and at pressures of 10-500 atmospheres. The catalysts may either be used in the form of pellets or incorporated with porous carriers such as active carbon. In an example, paraffin hydrocarbons or materials containing paraffin hydrocarbons are passed through a re-action vessel containing chromic oxide gel at a temperature within the range 400‹-700‹ C. under a pressure in the range 1-100 atmospheres. The re-action product comprising aromatic hydrocarbons and hydrogen is passed over a hydrogenation catalyst to yield the required naphthenic hydrocarbons. The Provisional Specification describes also conditions of operation of the second stage of the process whereby a product is obtained which does not consist wholly of naphthenic hydrocarbons but contains aromatic hydrocarbons.
Patent GB-549902-A (GB)
Title: Improvements in or relating to hose pipes manufactured from composite rubber fabrics
IPC: B29C48/91
Filed: 1941-05-07
Abstract: 549,902. Hose pipes. SABNER,M. May 7, 1941, Nos. 5959/41 and 1243/42. [Class 99 (ii)] [Also in Group VIII] A hose pipe is made by wrapping about a former a compound sheet material formed from an open-work fabric of ramie, linen, flax or cotton having.a layer of rubber on each face, the layers having been squeezed together so that they unite through the interstices of the fabric. The composite fabric may be formed so that a marginal portion of fabric extends beyond the rubber layers. The weft yarns of the fabric may be stronger than the warp yarns. In a modification the fabric may be close-woven and provided with holes. As shown in Fig. 7, the fabric 7, covered on one side with a layer 6 of closely woven fabric or paper, is wrapped round a former 8 and a marginally extending layer 4 of uncoated fabric is folded round the outside, the raw edge being covered by rubber tape 11 and the whole is vulcanized, for example in a circular section pipe-like former by means of steam. The composite fabric may be made by passing a fabric 12 between a lower roll 14 and an adjustable heated upper roll 13 at which rubber 15 is supplied from a hopper 16 to form a layer 19. After passing round a drum 20 a layer 21 of rubber is similarly applied to the other side of the fabric by roll 13<SP>1</SP>, the pressure of rolls 131, 141 causing the layers 19, 21 of rubber to unite. Specifications 533,912, [Group VIII], 533,922 and 533,949, [both in Group IV]. are referred to.
Patent GB-1208081-A (GB)
Title: An electrostatic generator
IPC: H02N1/12
Filed: 1969-02-04
Abstract: 1,208,081. Electrostatic generators. MOONSTAR RUBBER Ltd. and A. ISOYA. 4 Feb., 1969 [21 March, 1968; 2 Aug., 1968], No. 5963/69. Heading H2A. The charge carrier of a Van de Graaff type generator comprises a flexible cord of dielectric material surrounded by a cover of natural or synthetic rubber formed with spaced, annular ribs 2 carrying conductive rings 4 which are longer than the ribs so that oppositely-extending cavities 5 are formed in each ring. As shown in Fig. 1, polyester or rayon fibres 1 are embedded in the material 3 of the cover. Alternatively, Fig. 4, a bundle of fibres I<SP>1</SP>, or a knitted cord of fibres embedded in and coated with rubber, is surrounded by a series of rubber sleeves 3<SP>1</SP> formed with flanges 2<SP>1</SP>. The sleeves may be pushed into the rings 4 so as to engage the flanges 2<SP>1</SP> in annular grooves therein or the sleeves may be cast in the rings. Again, the rings may each be formed in two semi-cylindrical halves which are placed round a flange 2<SP>1</SP> and spot-welded along the joints. Fig. 6, shows a generator in which a charge-carrier 12 as above runs over a motor-driven pulley 13, a tensioning pulley 14, guide pulleys 16, 17 and earthed pulleys 18, 18<SP>1</SP>, all the pulleys having peripheral rubber rings thereon. Located opposite the pulleys 18, 18<SP>1</SP> are charge-inducing and removing electrodes 11, 11<SP>1</SP>, each in the form of a pulley with a deep groove 19, Fig. 8, which embraces but does not contact the charge carrier. These electrodes are rotated slowly against sponge-rubber cleaning pads 20. The generator casing b is filled with gas, such as Freon, under pressure and may house more than one charge-carrier.
Patent GB-401551-A (GB)
Title: Apparatus for automatically interrupting the feed of the material for spinning, twisting and similar textile machines
IPC: D01H13/18
Filed: 1933-02-27
Abstract: 401,551. Delivery-stopping apparatus for spinning, twisting, and like machines. BENZ, E., STUTZ-, Landsberg Warthe, Germany. Feb. 27, 1933, No. 5975. Convention date, Feb. 25, 1932. [Class 120 (ii).] In apparatus for stopping delivery of the roving when a yarn breaks in spinning, twisting, and like machines, a feeler 9, in unstable equilibrium, is arranged so that upon breakage, either immediately it falls or after its fall has become accelerated, it draws a lever 13, in stable equilibrium and connected to the rollerengaging and roving-gripping lever 18, into the path of a driving-member, for example a pin 22 on the pressure roller 4, whereby it is positively actuated. The lever 13 may be connected to the feeler by a slotted connecting- piece 12. A projection 24, Fig. 3, may be formed on the lever 13 so that, when the feeler is raised by hand after piecing, it is engaged by the pin 22 and with the lever 18 is thereby positively returned to the normal position, or the connecting-piece 12 may engage a stop during the returning movement so that it is guided thereby and the parts returned to the normal position.
Patent GB-990748-A (GB)
Title: Manufacture of olefin hydrocarbons
Inventor: PEARSON TILLMON HENRY
IPC: C07C2/30
Filed: 1962-02-16
Abstract: Liquid alpha-olefins predominating in normal olefins are obtained by polymerizing ethylene in the liquid phase in the presence of a hydrocarbon compound of a Group IIIA (non-transitional) metal at above 140 DEG  C. and above 700 p.s.i. or P, whichever is the greater, where P, the pressure in p.s.i., is expressed by P= 33.5 T - 5,400, where T is the temperature in degrees C., recovering desired alpha-olefins and recycling undesired mono-olefins containing a vinyl group and, if desired, unreacted ethylene. Preferably, the pressure is below 4000 p.s.i. or P, whichever is lower, where P=60 T - 7700, and the temperature is 140-250 DEG  C.  An inert hydrocarbon, e.g. benzene, toluene or undecane, may be added in an amount of up to 14 litres per gram mol. of catalyst, preferably 0.1-5 litres and preferably the sum of the volume of diluent and half the volume of recycled vinyl olefins is at least 5 litres per gram mol. of catalyst. Preferably vinylidene olefins of the same molecular weight range as the desired product are added in amounts of 4-45 litres per gram mol. of catalysts, such olefins preferably being obtained from the product and recycled in a constant amount, any excess being discarded. Residence times of 0.25-10 hours are used.  The product may be C12-C16 or C18-C24 and lower products are recycled.
Patent GB-688616-A (GB)
Title: Improvements relating to servo control systems
Inventor: WATSON CYRIL DANIEL
IPC: B64C13/24
Filed: 1949-03-04
Abstract: 688,616. Fluid-pressure servomotor-control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 1, 1950 [March 4, 1949], No. 6036/49. Class 135. In a servo or servo-assisted control system of the kind comprising controlling and controlled members interconnected by power means and provided with a follow-up system whereby, on attainment of the desired displacement by the controlled member, the power means is rendered inoperative, and wherein an exaggerated actuation of the controlling member or an excessive load on the controlled member would adjust the follow-up system to give a dangerous movement of the controlled member, spring means is provided which yields and automatically adjusts the follow-up system to prevent initiation of the dangerous movement of the controlled member, the spring means being operatively connected by direct and positive means, in itself not yieldable, to the controlling member, the controlled member, and the follow-up system. In an embodiment, the input signal is applied through a member 1 and a floating lever 3, Fig. 1, to actuate a piston valve 5. The latter controls the supply and exhaust of pressure fluid to a jack 7 which comprises a fixed piston and a movable cylinder coupled at 16 to the controlled member. The cylinder carries the casing or seat for the valve 5 so as to give a follow-up effect. The pressures applied to the two sides of the jack are also applied to a spring-centred subsidiary piston 11 coupled to the floating lever 3 so that, should the centering spring 12 yield owing to an abnormal operation, a connecting movement is applied to the floating lever 3 and valve 5. In a second embodiment, the input signal is applied through a member 23, Fig. 2, floating lever 24, link 30, a second floating lever 31, and a thrust rod 32 to an eccentric ring controlling a variable delivery pump 21. The output from the latter is applied to a jack 20 with a movable piston which actuates the controlled member 26 through a floating lever 25. The piston is also connected to floating lever 24 to provide for re-centering or follow-up. Overshooting by the controlled member will cause pivoting of a lever 35 about its pivot 36, and spring device 38 will yield to adjust the position of the fulcrum of lever 31. A lever 40 carrying a spring centering device 41 is connected to member 23 to provide the operator with feel.
Patent GB-727354-A (GB)
Title: Cupola furnace
IPC: F27B1/16
Filed: 1953-03-04
Abstract: 727,354. Cupola furnaces. BUDERUS'- SCHE EISENWERKE. March 4, 1953 [March 7, 1952], No. 6040/53. Class 51 (2). In a cupola furnace of the type in which the lining is cooled in the region of the tuyeres, the lining 4 in this region is considerably reduced in thickness by the insertion of a number of open box-like castings 1, made from alloy cast iron or steel, cooled by water sprays 10, and formed with tuyere openings 2 at different heights in different castings. The castings are also formed with a lower lip 11 over which the water flows on to a plate 12 directing it on to the lower part of the cupola shell 6 from which it collects in a trough 14. The thin section of the lining is made from neutral or basic material, e.g. stabilized dolomite, and the castings are detachably secured to the cupola shell 6 by angle irons 5. The tuyeres 3 of known water-cooled type may be horizontally disposed or downwardly inclined and may project slightly through the lining. In the former case the inner face of the tuyere is inclined downwardly and outwardly of the lining.
Patent GB-267139-A (GB)
Title: Method of and means for regulating the condition of movement of winding engines, vehicles and the like
IPC: G05D13/00
Filed: 1927-03-04
Abstract: 267,139. Fono, A. March 8, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Differential governors.-A speed regulator for winding engines &c. comprises a rotating casing 32 driven by the engine through gearing 38, 39 and containing a liquid such as mercury. The casing is divided by walls 34, 35 into an outer annular chamber and two inner chambers communicating by ports 54, 55. The inner chambers are connected by pipes 40, 41 to chambers 42, 43 containing pistons 53. The chambers 51, 52 on the other sides of the pistons are connected by pipes to chambers 47, 48 supplied with pressure fluid by a pump 30, the liquid passing from chamber 47 to chamber 48 through a restricted opening 46 controlled by a path or depth indicator. If the speed of the engine varies, the differential pressures acting on the pistons 53 move the pistons and operate the air regulator of a brake &c. to control the engine. In another form a centrifugal governor driven by the engine raises or lowers a rotating cylinder against which a rotatable arm is pressed. A pin on this arm engages another arm controlled by a path or depth indicator so that differential movement of the two arms due to a variation of engine speed operates an element controlling the engine.
Patent GB-162144-A (GB)
Title: Improvements in means for heating beverages, foods, and the like
IPC: F24C15/00
Filed: 1920-03-01
Abstract: 162,144. Price, A. L. March 1, 1920. No Patent granted (Sealing fee not paid). Supports and containers for articles to be heated. -A support for a cup or other liquid containing vessel for fitting above a gas burner or other illuminating lamp has a locating ring A for fitting within or outside the chimney, and a hood portion B for preventing overflowing liquid from entering the chimney and is pierced with holes C for the escape of the products of combustion. An additional hood may be provided as at D, E or F. Modifications are shown in Figs. 3 and 5, the latter of which has a gutter H for catching any overflow. The holes C May be omitted at one point to prevent overheating of the handle of the cup. Reference has been directed by the Comptroller to Specifications 9477/85, 12863/88 and 13298/01.
Patent GB-836292-A (GB)
Title: Improvements in moving staircases
IPC: B66B23/02
Filed: 1958-01-15
Abstract: 836,292. Escalators. RHEINSTAHL HAMBURG, STAHLBAU EGGERS & F. KEHRHAHN G.m.b.H. Feb. 26, 1958 [May 24, 1957], No. 6199/58. Class 78 (1). A moving staircase of the kind comprising endless chains between which are mounted a succession of steps has a framework composed principally of tubular members. As shown, the framework comprises two side structures each composed of longitudinal tubular members 1a, 2a and bracing tubular members 9, the side structures being connected by horizontal tubular members 5. Rails 3 for supporting the chains are secured to the members 5 by connector sleeves 4 which are either split or in two halves so that they may be clamped in place by removable bolts. Rails 6 for supporting the lower runs of the chains are similarly clamped to the bracing members 9 by sleeves 8, while further connector sleeves 14, 15 secure outer and inner panels 10, 12 respectively to the members 9. The hand rails 17 are supported on guides 16 which are secured to the members 1a, 2a by connector sleeves 18.
Patent GB-125224-A (GB)
Title: Improvements in or relating to Furnaces.
Inventor: SMALLWOOD ALFRED
IPC: C21D9/00
Filed: 1918-04-12
Abstract: 125,224. Smallwood, A. April 12, 1918. Metal-heating furnaces.-A furnace for heating metal articles which are arranged to project into it is constructed with a number of compartments arranged in line, one only being shown at a in Fig. 2, and supplied with gas or furnace gases and heated air through ports g and i, respectively. A gas-producer or fire-box is arranged within the furnace structure at one end and delivers into a longitudinal flue or heat-distributing chamber e, from which the ports g open out. Air is preheated in a recuperator arranged as shown in the lower part of the furnace and passes to a longitudinal hot-air chamber or flue h, whence it issues through the ports i. The waste gases escape through regulable ports l to a longitudinal flue k, whence they pass through the heating flues of the recuperator. The ports g and i may be individually regulable by means of dampers adapted to be operated through openings j. Slag may be. tapped at n from the flue k.
Patent GB-1036031-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F7/04
Filed: 1964-02-14
Abstract: 1,036,031. Vibration dampers. ANDRE CITROEN S.A. Feb. 14. 1964 [Feb. 18, 1963]. No. 6272/64. Heading F2S. In a friction shock-absorber comprising a plate 3 enclosed between two discs 1, 2 with friction linings 4, 5 therebetween the two discs 1, 2 are connected to each other by means of a flexible diaphragm 6 the periphery of which is secured to the disc 1 and the central part of which is cut out to form circumferentiallyspaced laminµ 6a, Fig. 2 (not shown), which are secured to the disc 2. The plate 3 carries the friction linings 4, 5 and is fixed by means of pins 15, a block 16, and a centring washer 17, to an axle tube 13 which rotatably supports, on roller bearings 14, a wheel-supporting arm 12. Bolts 7 clamp together the outer edge of the diaphragm 6, the disc 1, the wheel-supporting arm 12 and also a casing 8, a spring 11 being constrained between a cap 10 screwed into the casing 8 and the disc 2, and the discs 1, 2 being urged against the friction linings with a force which is determined by the setting of the screw-cap 10. Ribs 6b on the diaphragm allow elongation of the  laminµ when the disc 2 moves horizontally.
Patent GB-100409-A (GB)
IPC: A47L9/02
Filed: 1916-05-03
Abstract: 100,409. Hugro Manufacturing Co., (Assignees of Boyer, C. A.) April 29, 1915, [Convention date]. Vacuum cleaning-apparatus. - In a vacuum cleaner having a nozzle pivotally attached to the casing, a lever is pivoted at each side of the nozzle on a resilient support, and is formed with a slot having a cam-like surface adapted to engage a lug on each side of the casing, in order to enable the nozzle to be turned out of the way and the filter bag removed and replaced. As shown, the nozzle B is provided with lugs 1 pivoted or hinged to the casing, and with slotted latch-levers 3 pivoted to L-shaped pieces C secured to the nozzle, the parts 10 of these pieces being out of contact with the nozzle so that they may yield resiliently when the cam-slots 4 of the levers are turned down over lugs 5 formed on side plates secured to the casing. Finger-pieces 7 are provided on the levers, whereby they may be operated.