baber/WOPTO huggingface dataset:
Patent GB-587934-A (GB)
Title: Improvements in gas analyzers
IPC: G01N27/16
Filed: 1944-04-06
Abstract: <PICT:0587934/III/1> In gas analysis apparatus of the kind wherein combustion of a constituent of the gas with an added gaseous reagent is effected by a heated catalyst connected in a Wheatstone bridge, a switch is provided for changing the sensitivity of the galvanometer to suit gases of various compositions and simultaneously for altering the proportion of reagent gas added.  The illustrated apparatus has two combustion cells 13, 95 determining respectively the oxygen and the combustible content of a furnace or exhaust gas. The catalytic filaments 22, 96 of the cells are connected respectively in Wheatstone bridges 36, 35 which are connected in series with one another and supplied with current from rectifier 32.  Also included in the circuit is electrolytic cell 15 supplying hydrogen as a reagent to cell 13, while gas to be tested is supplied by pump 9. When testing gases of low oxygen content the multiple switch 42 is in the position shown, connecting the galvanometer 41 in series with calibrating resistance 75.  A resistance 76 is connected in parallel with the cell 15, reducing its output.  For gases of higher oxygen content switch 42 is turned to the left, recalibrating the galvanometer by substituting resistance 79 for 75, and increasing the hydrogen supply by cutting out resistance 76.  Also the rotation of cam 45 drops a perforated shield 25 over the catalyst 22 restricting the access of gas to it.  The third position of switch 42 connects the galvanometer to a thermo-couple 82 for measuring the temperature of the gas to be tested in conduit 1.  Cell 95 for estimating combustible content is supplied by pump 87 with a mixture of air p drawn through passage 91 and gas drawn from pump 9.  The ratio can be changed by turning valve 86 connected to switch 101 which places one or other of the calibrating resistances 116, 119 in series with the galvanometer 100 of Wheatstone bridge 35.
Patent GB-683905-A (GB)
Title: Improvements in the preparation of organo-siloxanes and compositions containing them
Inventor: HIRSCH ALFRED
IPC: C08G77/06
Filed: 1950-03-15
Abstract: A mouldable, resinous mono-organo-substituted polysiloxane of high heat resistance and extended transient thermoplastic range is made by hydrolysing a mixture of phenyl silicon trihalide and ethyl silicon trihalide, the latter being present in amount of 10 to 30 mol. per cent, and isolating a partially condensed co-hydrolysate of the two organo-silicon halides.  The co-hydrolysates may be used alone or with inert fillers such as barium sulphate, serpentine, alkaline earth metal oxides, magnesia, titania, zirconia, carbon black, antimony trisulphide, glass wool or powder, rock wool, silicates, pigments, talc and mica, and with or without curing catalysts such as lead and lithium naphthenates.  The co-hydrolysates may be cured by heating e.g. by infra-red radiations to 200-400 DEG  C.  In examples: (a) ethyl and phenyl silicon trichlorides are mixed in isopropyl ether and the resulting solution added to ice-cold water, the ether layer being subsequently separated and the solvent removed; (b) the resin from (a), still containing some solvent, is mixed with lead naphthenate, heated and the resulting solid is then comminuted; (c) the resin of (b) is pressure moulded. Specifications 609,609, 683,912 and 683,914 are referred to.
Patent GB-1456535-A (GB)
Title: Spray cleaning systems
IPC: B08B9/093
Filed: 1974-02-13
Abstract: 1456535 Spray cleaning SYBRON CORP 13 Feb 1974 [9 March 1973] 6565/74 Heading A4F [Also in Divisions B2 and B8]  A vessel, e.g. for chemicals, food or beverage, is spray cleaned by apparatus comprising a hydraulic cylinder 40 having an inlet at one end 42 for receiving cleaning fluid and a cleaning fluid supply tube 45 that extends sealingly out through the other end of the cylinder 40 and has mounted thereon a spray cleaning head 46. An annular piston is provided on the tube 45 and defines with the tube 45 and cylinder 40 a chamber 53 that varies in volume with fluid-pressure. Thus the pressure of fluid in the supply tube serves to move the tube 45, and consequently the cleaning head, to the extended position, the tube 45 and head 46 being returned to the retracted position, shown by fluid supplied under pressure to the chamber 53. In the embodiment shown, the head 46 in the retracted position is positioned within a casing 70 that is closed by a pivotable lid 71. Closing of the lid 71 may be achieved either by sliding a curved portion 75 thereof over lip 72 or, in an alternative embodiment, Fig. 4 (not shown) by means of a spring-biased rod (95) mounted on the head which abuts a cam (97) on the lid. A single pump may supply fluid to both the tube 45 and chamber 53 or, as shown, two pumps 60, 63 may be employed. The fluid may be supplied to and drained from the chamber 53 via a multi-way valve 65 which connects the chamber 53 to pump 63, which is of smaller capacity than pump 60, or to a drain.
Patent GB-525771-A (GB)
Title: Improvements in and relating to switches for light railways
IPC: B61L5/02
Filed: 1939-02-28
Abstract: 525,771. Railway switches. BISCHOFF, G., and NIEBERDING, F. Feb. 28, 1939, No. 6591. Convention date, Feb. 28, 1938. [Class 104 (i)] A switch for light railways comprises a bar 5 connecting the tongues 3, 4 and having at one end an extension provided with a handle 6. The bar is connected to the tongue 3 by a bolt 8 permitting relative vertical movement of the bar against the action of a spring 10 carried by the bar and engaging the tongue. A cam 12a with a curved top engages one or other edge of the stock rail 1 according to the' setting of the switch, and its curved top allows the points to be trailed through. It may be angularly adjusted to suit the throw of the tongue 3.
Patent GB-1033136-A (GB)
Title: Improvements in or relating to the cooling of laminated electromagnetic cores
IPC: H02K9/00
Filed: 1964-02-18
Abstract: 1,033,136. Transformers. GENERAL ELECTRIC CO. Feb. 18, 1964 [Feb. 25, 1963], No. 6718/64. Heading H1T. [Also in Division H2] The core laminations of a transformer each have a hole, these holes being aligned on stacking to allow the passage of cooling liquid or gas. Irregularities in these cooling passages are accommodated by lining them with electrically insulating pipes which are sufficiently flexible to conform to the irregularities. The pipes may be of P.T.F.E. coated with thermo-setting resin and pressurized to fit the passages. Alternatively, oversize pipes may be drawn in.
Patent GB-566513-A (GB)
Title: Improvements relating to front forks for cycles and like vehicles
IPC: B62K25/16
Filed: 1943-04-29
Abstract: 566,513. Spring forks for cycles &c. FITZPATRICK, H., and ROBERTS, R. April 29, 1943, No. 6757. [Class 136 (iii)] A front fork 1 for cycles and like vehicles is connected with the steering column 2 by means of two rubber or like sleeves 3, 3A, the sleeve 3 being confined within a tube 13 arranged at right-angles to and at the upper end of the steering column while the sleeve 3A is compressed between a cup 6 at the bottom of the column and a cup 5 projecting rearwardly from the fork crown 4. The sleeve 3, which may be fitted on an inner metal tube 14, is compressed by a bolt 15 between the flattened top ends of the fork or plates fixed thereto. The upper end of the steering column is split so that when the stem of the handle-bar is inserted, it may be fixed in position by tightening a bolt connecting two rearwardly-extending lugs, on a clip of which the tube 13 forms part. The sleeve 3A is compressed between the cups 5, 6 by a squaresection bolt 7 and nut 7A, the clamping surfaces of which and of the co-operating parts preferably form part-spherical joints 9.
Patent GB-453132-A (GB)
Title: Improvements in water resistant dextrine paste
IPC: C09J103/02
Filed: 1935-03-04
Abstract: The water-resistance of dextrin pastes is increased by mixing a finely-divided vegetable protein, e.g. gluten with the dextrin. The paste is then made by adding water and cooking The protein may be added in the form of a mixture of corn starch and corn gluten which has been gelatinized by passage between heated rolls. Specification 332,680, [Class 121], is referred to.
Patent GB-449104-A (GB)
Title: Improvements relating to dust filters
IPC: B01D46/02
Filed: 1935-03-04
Abstract: 449,104. Gas - filters. PYRENE CO., Ltd., and BEDFORD, H. E., Great West Road, Brentford, Middlesex. March 4, 1935, No. 6782. [Class 8 (ii)] In a filter, which is especially applicable for rock drills, the dust-laden air is entrained through a hose 7 and a tube 9 by means of an injector 8, supplied with compressed air by a pipe 10. A baffle 13, at the lower end of the tube 9, causes the deposit of heavy particles and of moisture, which are caught in a tray 14 containing a paper bag 15. The tray is hinged at 2 to the upper part 1 of the filter and is secured by a wing nut 3, The air escapes to the exterior through the walls and open upper ends of filter bags 4, which are secured in a plate 6 and are distended by springs 5. The cover 16 of the casing 1 is spaced from the walls of the casing to permit the escape of air. Specification 441,351, [Group XXIII], is referred to.
Patent GB-291881-A (GB)
Title: Improvements in and connected with conditioning and drying grain
IPC: F26B17/14
Filed: 1927-03-11
Abstract: 291,881. Robinson & Son, Ltd., T., and Robinson, C. J. March 11, 1927. Conditioning and drying grain &c.-The closed air circuit in apparatus as described in Specificaton 238,375 for supplying air to grain and comprising ducts b, c, conditioning column a, return conduit d, mixing box e, fan g, and air heater h is provided with a cyclone dust collector f to remove beeswing or fine dust. The mixing box e is also connected to a pipe i through which cold air traversing the lower part of the column a is drawn by a fan j, such air being discharged through a conduit k and a dust collector l. A pair of interconnected valves n, o, actuated by a hand-lever, controls the flow of air and permits fresh air to be introduced into the normal closed circuit or used air to be withdrawn therefrom. Fresh air may also be introduced through a valve g. The inlet and outlet ducts on the conditioning column may be reversely tapered to ensure an even flow of air at all parts of the column. In the Provisional Specification it is stated that the gases may be moistened by injecting steam into the hot air.
Patent GB-480403-A (GB)
Title: Improvements in or relating to steam plant
IPC: F22D3/00
Filed: 1937-03-08
Abstract: 480,403. Heating water. RUTHS ARCA ACCUMULATORS, Ltd., and RITCHIE, E. G. March 8, 1937, No. 6813. [Class 64 (i)] Cold water sprayed from a pipe 8 into a chamber 6 is heated simultaneously by exhaust and live steam supplied through pipes 4, 9, and by steam given off by condensate supplied through a pipe 5. Raschig rings, balls or the like 7 are placed in the chamber, the lower part of which forms a hot well 12. Steam from a boiler 1 passes by a pipe 2 to a turbine 3, whence exhaust steam enters pipe 4 and the condensate is returned by pipe 5. Temperature or pressure in the chamber 6 controls a valve 11 in the cold water pipe 8 and a valve 10 in the live steam pipe 9, which latter is also opened by excess pressure in the live steam pipe 2. The valve 11 may be controlled by the water level in the chamber 6. A pump 13 moves water from the wall 12 to an accumulator tank 15 through a pipe 16 with a valve 14 controlled by water level in the chamber, which has a safety valve 18. The accumulator has a level gauge 17, and the boiler firing is increased when this is low. If the exhaust steam from the turbine 3 is oily, an indirect contact heater supplied with cold water from the pipe 8 may be arranged in the pipe 4.
Patent GB-869386-A (GB)
Title: Improvements in or relating to flues for heating apparatus
Inventor: SHERWEN THEO
IPC: F23L17/16
Filed: 1959-02-27
Abstract: 869,386. Stoves. HORSTMANN & SHERWEN Ltd. Dec. 3, 1959 [Feb. 27, 1959], No. 6944/59. Class 126. [Also in Group X] The flue 1 of a domestic boiler has a draught inducing device comprising an electrically-driven blower 3 which has a delivery nozzle 7 passing through a cover plate 2 and extending axially up the flue for a short distance. The electric power for the motor 5 of the blower is automatically con-: trolled by a thermostatic switch 6 which is influenced either by flue temperature or the differential between flue temperature and: room or ambient temperature. In a modification the blower, nozzle, motor and switch are mounted on a flue fitment comprising a flue pipe section connectible by insertion into a bell end in the normal flue piping. A draught responsive control means which may replace; the thermostatic switch comprises a counterweighted flap pivotally mounted in a wall of a smoke box connecting the boiler outlet to the flue pipe, which flap operates a roller switch connected to the motor circuit of the blower.
Patent GB-1158112-A (GB)
Title: Surgical Stapling Instruments
IPC: A61B17/072
Filed: 1966-07-06
Abstract: 1,158,112. Surgical stapling instruments. UNITED STATES SURGICAL CORP. 6 July, 1966 [6 July, 1965], No. 7079/69. Divided out of 1158111. Heading A5R. [Also in Division B4] The subject matter of this Specification is substantially identical with that described with reference to Figures 1 to 17 in Specification 1158111, but the claims are concerned with a surgical stapling instrument for use with a precharged disposable staple magazine, the instrument comprising a C-shaped jaw having a forward leg for receiving an anvil, an elongated body connected to the rear of the jaw, a carrier for a staple magazine movable toward and away from the forward leg within the mouth of the jaw and a pusher head with a flat forward face movable within the carrier member for ejecting staples simultaneously from the magazine when mounted in the instrument.
Patent GB-300849-A (GB)
Title: A loud speaker for radio-telephonic purposes
IPC: H04R1/26
Filed: 1928-03-07
Abstract: 300,849. Radiophon Co. Jan. 27, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Loud - speakers ; magnetic instruments. - A loudspeaker comprises two separate telephone systems, one 1 of which is secured to a wall 3 resonant to low notes and the other 2 to a rigid support 4 opposite the wall. The telephones are placed so that diaphragms 6, 7, which are connected to the respective vibrating armatures, overlap one another. The armatures are adjusted by spindles 8, 9 coupled together and operated by a single knob 11.
Patent GB-891333-A (GB)
Title: Improvements in or relating to control circuit arrangements for electron-optical devices
IPC: H04N5/58
Filed: 1958-03-06
Abstract: 891,333. Television. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 6, 1958 [March 9, 1957], No. 7251/58. Class 40(3). In a television receiver an exponential brightness characteristic is maintained for all settings of the brightness control potentiometer 16 by mechanically coupling the latter (the characteristic of which is altered by the parallel connected resistor 19) to a gamma control arrangement comprising a further potentiometer 12 connected in a circuit including equal value resistors 8, 9 and a non- linear device 11, the arrangement being such that, for a given adjustment of the contrast control 5, any increase of the brightness control potentiometer 16 (slider moving towards right hand side) is accompanied by an increase in the degree of non-linearity introduced by the gamma control arrangement. An exponential brightness characteristic is thus maintained (when, e.g. the brightness is adjusted to compensate for ambient lighting changes) and the viewer consequently retains the impression of a linear brightness characteristic. If desired, the synchronizing pulses may be suppressed by means of diode 21, a resistor 22 then being included as a load for the D.C. re-inserting diode 7. The gamma control circuit may be modified as shown in Fig. 5 and it is stated that since the linearity of the latter is determined by the voltage applied to diode 28 such voltage may be derived with suitable modification from the brightness control thus enabling a single potentiometer to effect both controls.
Patent GB-574008-A (GB)
Title: Improvements in or relating to the recovery of glycerol from fermented liquors
IPC: C12P7/20
Filed: 1941-06-09
Abstract: 574,008. Fertilizers. WALMESLEY, R. A, and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 9, 1941, No. 7255. [Class 111] [Also in Group III] The solid residues from the extraction of glycerol from still residues of carbohydrate fermentation by means of lime or other alkaline earth, metal oxide, or hydroxide and alcohol may be used as a fertilizer. The material is a non-hygroscopic granular solid which does not become sticky when heated.
Patent GB-1371004-A (GB)
Title: Hydraulic backlash adjuster and meter means
IPC: F01L1/24
Filed: 1973-02-14
Abstract: 1371004 Cam mechanisms; IC engine valve gear JOHNSON PRODUCTS Inc 14 Feb 1973 [24 Oct 1972] 7304/73 Heading F1B [Also in Division F2] In an hydraulic automatic back-lash adjuster pillar 100 for an overhead cam-shaft I. C. engine valve operating mechanism of the type in which a rocker arm 108 has one end 114 pivotally mounted on the fulcrum head 150 of a plunger assembly 134 extending from the adjuster pillar body 120, the other end engaging a valve stem 102, and a portion of its upper surface between its ends engaging a cam 110, the flow of lubricating oil to the I. C. engine valve gear, e.g. cam 110, through a duct 115 in the rocker arm 108 is metered by its passage from an inlet 158 through the adjuster pillar 100. As shown, the oil reaches a reservoir 126 inside the lower plunger 122 via an annular recess 146 and a groove 142 in one of the engaging faces of an intermediate seat member 138 and the lower plunger 122, oil reaching an outlet duct 156 in the upper plunger 136 via an annular gap 148 around seat member 138 and a further groove 140 in one of the engaging faces of the seat member 138 and the upper plunger 136, either the annular gap 148 or one or other of the grooves 140, 142 performing the metering function. In an alternative arrangement, Fig.4 (not shown) the slot 142 is replaced by an arrangement of radial grooves formed in the upper end of the lower plunger 122 for freer oil access to the reservoir 126, the annular gap 148 or slot 140 metering the flow. The upper plunger 136 and seat member 138 may be heat sintered from metal powder.
Patent GB-1300149-A (GB)
Title: Improvements in or relating to dissolving apparatus
IPC: B01J49/75
Filed: 1970-02-16
Abstract: 1300149 Regeneration of water softeners HOLZER PATENT AG 16 Feb 1970 [19 Feb 1969] 7310/70 Heading B1J Water for producing a regenerant brine solution enters container 1 at 5 and passes through a lip valve 11 and apertured support 9 to a salt bed 12. The brine solution thereby formed passes to an outlet 4 via a filter plate 2 and proceeds to the exhausted softener of a washing machine.
Patent GB-1497142-A (GB)
Title: Process and apparatus for the production of photopolymer printing plates
IPC: G03C1/74
Filed: 1975-02-21
Abstract: 1497142 Printing apparatus BASF AG 21 Feb 1975 [23 Feb 1974] 7310/75 Heading G2A Photopolymer printing plates are produced by introducing a predetermined quantity of fluid photopolymerizable resin material under pressure into a mould comprising a glass plate 8 and a support 10 which subsequently form part of the printing plate, the glass plate 8 being covered with an image-bearing transparency, exposing said material to actinic light from a source 11 through the glass plate and the transparency to photopolymerize selected parts of said material and bonding these parts to the support 10 by means of an adhesive layer on the support, the support being adjusted and maintained at a uniform distance from the glass plate 8 during exposure to produce a plate of uniform thickness. The glass plate 8 is mounted on a member 7 supported on a stand 6 and the support 10 is mounted on a member 9 which is hinged to the member 7 and is movable relative to the member 7, e.g. by pneumatic or hydraulic cylinders, between an open position shown and a closed position in which it can be locked, e.g. by hooks 20 engaging pins 22. Plastics film 14 from a roll 12 extends over an ionization device 13 for freeing the film of static electricity, a guide 15 and a slot 16 for facilitating cutting the film with a knife, to cover the glass plate 8 and protect it from contact with the photopolymerizable material. The glass plate 8 rests on ledges 23 of the member 7 and is sealed by an elastomer 25. Spacers 26, 27, 28a, 28b, e.g. of spring steel fixed on the glass plate 8 by adhesives, magnets or double-sided adhesive tape, determine the thickness of the fluid material, and small gaps provided between the spacers permit air to escape during flowing of the material into the mould. A sealing strip 29 is provided adjacent a feed channel 31 for the fluid material, the channel having at its mouth a seal which opens under the pressure of the fluid material. The member 9 has vacuum channels 36 or magnets for holding the support 10 and spring-loaded locating pins 37 for engaging bores in the member 7, and it is heated electrically or is fed with a heating medium through a line 39 to reduce the viscosity of the photopolymerizable material. Due to the pressure of the fluid material the glass plate 8 bends and to maintain the support 10 at a uniform distance from the plate 8 the member 9 is similarly bent, e.g. by pressurizing the medium fed through the line 39. The member 9 and the support 10 are made from steel, aluminium or plastics material. Vacuum grooves 24, 46 hold the film 14 in position. Strain gauges may be used to measure the bending of the glass plate 8 whereby the pressure applied to bend the support 10 may be suitably controlled. Alternatively, a photo-cell may be used to measure the bending of the glass plate. A thermocouple may be used to measure the temperature of the glass plate and it may be used to control means for heating the plate.
Patent GB-263659-A (GB)
Title: Improvements in apparatus for the destructive distillation of bones and the like
IPC: F23G1/00
Filed: 1926-03-17
Abstract: 263,659. Shearman, C. H. March 17, 1926. Carbonizing apparatus. - Apparatus for destructively distilling bones &c. comprises a vertical chamber 1 supported on a ring of brickwork 4 having equally spaced holes 5. A perforated firebrick partition 6 extends across the base of the chamber and is supported at its centre by a short tube 7 with an extension 8, both perforated. Horizontal rows of apertures, which are each the size of a firebrick, are provided in the chamber and are staggered with respect to one another. These apertures are sealed with bricks and the spaces beneath the partition 6 and above it to the first row of apertures are filled with wood, the chamber then being charged thorugh a door 15, and the wood lighted. As the charge burns through, a brick being removed for inspection, successive rows of apertures are opened until red heat shows at the top row, whereupon a fan 18 is operated to cool the charge. Specification 22214/11 is referred to.