baber/WOPTO huggingface dataset:
Patent GB-780646-A (GB)
Title: An improved method of superheating vapour and improvements in tubulous steam generating and superheating units
IPC: F23C3/00
Filed: 1956-03-14
Abstract: 780,646. Steam superheaters. BABCOCK & WILCOX, Ltd. March 14, 1956 [March 16, 1955], No. 7927/56. Class 123(3) A water-tube steam boiler comprises a cyclone furnace 10 of the form described in Specification 598,141 having a throat 24 in the front wall 26 of the unit, the wall 26 being lined with steam generating tubes 30 which are bent inwardly above the throat to form an arch 32 the nose of which has openings for recirculated flue gas formed by offsetting some of the tubes. Opposite the arch 32 the rear wall lining tubes 52 are bent to provide a similar arch 33 also having recirculated gas openings. Above the arches 32, 33 is a gas cooling chamber 130 from which a lateral pass locating secondary and primary superheaters 132, 134 extends to a gas turning space 140. From the latter a downpass 142 in which is disposed an economizer 144...146 conveys the furnace gases to an air heater 148, 154. To enable high superheat temperatures to be attained when firing slagforming fuels, platens 72, 74, 76, 78 of refractory-covered, studded, superheater tubes are disposed to form the target wall of a secondary furnace 84, the gases from the furnace 10 carrying fused slag particles impinging on the wall, the molten slag collecting thereon running into a chamber 90 and thence into a slag pit 96. Behind the target wall similar refractory-covered superheater tube platens 100...103 extend at right angles, these platens being widelyspaced across the unit. Molten slag collecting on the platens 100...103 also runs into the pit 96. The gases leaving the radiantly-heated superheater platens are tempered by admixture with cool flue gas in the chamber 130 to solidify the slag particles remaining therein before the gases contact the superheaters 132, 134. Fouling of the tubes of the latter by sticky slag particles is thus avoided. Flue gas for recirculation is withdrawn from the bottom of the pass 142 by a fan 200 and delivered through damper-controlled ducting 208, 210, 214 to the openings in the arches 32, 33. The rate of gas recirculation may be varied to control the superheat temperature. Specification 526,825 also is referred to.
Patent GB-1500113-A (GB)
Title: Control valve for a brake booster
IPC: B60T13/57
Filed: 1975-02-26
Abstract: 1500113 Vacuum brake boosters; valves ALFRED TEVES 26 Feb 1975 [26 Feb 1974] 8062/75 Headings F2F and F2V A valve assembly for a brake booster comprises a resiliently urged closing member 9, a valve body 7 movable by an actuating rod 5, and a displacement augmenting arrangement 10 provided to move the valve body 7 away from the closing member 9 at a greater rate than the rod 5 moves. The arrangement 10 comprises a cup spring 11 with radial fingers which each abut from the outside to the inside a shoulder 12 of the casing 1, a bead 15 of the closing member 9, an actuating sleeve 13, movable by a disc 14 on the rod 5, and the valve body 7. In the suspended vacuum booster shown two chambers are connected by passages 2, 3 aud the closing member 9 is engageable with a seat 4 on the casing and a seat 8 on the valve body On moving the actuating rod 5, the closing member 9 first engages the seat 4 isolating the passages 2, 3 and then lifts from the seat 8 to connect the passage 2 through the valve body with the outside air.
Patent GB-289848-A (GB)
Title: Improvements in or relating to flotation processes for the treatment of ores, coal and the like
IPC: B03D1/002
Filed: 1928-03-16
Abstract: 289,848. Schõfer, W., and Erz-und Kohle-Flotation Ges. May 4, 1927, [Convention date]. Flotation processes for the treatment of ores, coal, graphite, &c. are carried out in the presence of polythionates or other derivatives of polythionic acids, particularly polythionates of polyvalent metals. There may also be present substances such as acids or alkalies which yield or produce hydrogen ions or hydroxyl ions in the pulp, and such substances may be applied successively for effecting differential flotation of constituents or groups of constituents present.
Patent GB-263006-A (GB)
Title: Improved stand for the display of coats, costumes and the like
IPC: A47F7/24
Filed: 1926-03-24
Abstract: 263,006. Whitbys, Ltd., and Shipway, S. P. March 24, 1926. Garment stands.-A display stand for coats &c. is composed of a U-shaped frame a, of metal tubing, supported in an upright position by legs b and carrying a readily removable horizontally disposed frame d also of metal tubing. The frame a may be provided with arms m to give additional support to the frame d. The tubing is preferably of oval section.
Patent GB-214063-A (GB)
Title: Improvements in circular knitting frames
IPC: D04B15/38
Filed: 1923-03-21
Abstract: 214,063. Carpmael, W., (Officina Meccanica Industria Maglieria). March 21, 1923. Circular machines.-A thread-changing device for making striped work in two colours, for use particularly with frames having loop wheels placed obliquely to the needles, comprises two pairs of shears one of which brings the inoperative thread to the needles and retires while the other cuts the operative thread and retains it, the respective functions of the shears being reversed on the next change of thread. The shears 1, 2 are carried by spring-pressed rods mounted to slide in bushes 3, 4 connected together by a yoke and consist each of two parallel fixed blades such as 2b, 2<c> and a pivoted blade 2<a>. The thread is cut by the blades 2<a>, 2<c> and gripped between the blades 2<a>, 2b. The blades 1<a>, 2<a> carry extensions 1<e>, 2e with pins thereon which engage fixed stops 8, 16 to cause the shears to open and close, and release or cut and grip the threads. The bushes 3, 4 are mounted to revolve around the shaft 9 whereby pins on the shear rods are operated by the edge of a cylindrical helical cam 10. The contour of the cam and the arrangement of the stops 8, 16 are such that the shears carrying the thread are moved forward independently of and in advance of the open shears, which when the end of the thread held by the closed shears has been taken by the loopwheel sinkers, move forward and suddenlv close to cut and grip the thread to be put out of action. The two pairs of shears are returned simultaneously. The rotary movement of the bushes 3. 4 is performed by a spring in a spring drum 15 connected bv gearing 19 - - 22 to the shaft 9. This spring is wound up by a Geneva device 23 on a shaft 18, which also causes the shears to exchange positions at regular intervals. The shaft 18 is provided with projections 24, 26 in the paths of which lie a stop 25 and a rod 27 pivoted at 29 on the supporting bracket 30. The arrangement is such that at the required times the projection 26 will move the rod 27 out of contact with one or other end 28 of the yoke connecting the bushes 3, 4 and allow the spring drum 15 to rotate the apparatus carrying the shears &c. The two threads A, B pass through holes 35 in a bracket 36 which is radially reciprocated to bring one or other thread between the toothed thread furnishing wheels 37, 38. The threads also pass through holes in the lower ends of rods 39, 40 which are pivoted near their upper ends. The shears 1, 2 carry fingers 41, 42 which on the forward thread-cutting movement engage the rods 39, 40 respectively and thus remove the thread not required to be cut out of the path of the shear blades.
Patent GB-837627-A (GB)
Title: Improvements relating to filters for fluids liquid or gaseous
IPC: B01D46/40
Filed: 1957-03-12
Abstract: 837,627. Filters. STEVENS, R. J. March 12, 1957 [March 12, 1956], No. 8129/57. Class 46. [Also in Group XXVIII] An edge filter comprises a stack of centrally apertured circular metal discs 1, Fig. 1, clamped by a bolt 5 and nut 6 between plates 2, 3 having concentric rings of outlet bores 18, 19, 20 and inlet bores 21, 22, 23 respectively the outlet bores being arcuately offset from the inlet bores, and each plate 1 has concentric rings of slots, e.g. radial slots 8, 9, 10, Fig. 2, between which and on one side of the plate only are provided striated areas 15 effected by electrolytic etching ; the slots of all the plates 1 being in register and being so spaced that alternate lanes B, C, Fig. 4, so formed open into the bores 21, 22, 23 and bores 18, 19, 20 respectively and are connected by the striated portions 15 by which filtration is effected. In a modification the slots in the plates 1 extend arcuately in concentric rings and the striations are located between the slots. Specification 721,592 is referred to.
Patent GB-180463-A (GB)
Title: Improvements in fuel vaporizing and economizing apparatus for use in connection with internal combustion engines
IPC: F02M1/00
Filed: 1921-03-15
Abstract: 180,463. 'Varvel, S. Le F., and Rofe, T. E. March 15, 1921. Heating by electricity. - An electric heating element placed within a perforated metal or gauze cylinder provided with suitable gauze diffusers, is disposed in the induction pipe of an internal combustion engine to vaporize the charge. A resistance coil 18 carrying the current is surrounded by a perforated metal tube 14, which carries a gauze liner 27 and/or a gauze screen 28, extending right across the induction pipe. An outer gauze sleeve may be fitted to the tube 14 instead of, or in addition to the liner 27. Provision may be made for the admission of air or water vapour the supply being controlled by a tubular valve (not shown) in the casing 12. Other forms are described in which the tube 14 is dispensed with, the induction pipe and the resistance coil, which is surrounded by a circular gauze screen, are coaxial, and in which several transverse gauze screens are used, the whole being mounted on a ring adapted to be clamped between the induction pipe and carburettor. The coil may be wound on the outside of a thin tube, which may be fitted with a gauze liner.
Patent GB-802490-A (GB)
Title: Rotary piston engines
IPC: F04C29/12
Filed: 1957-03-12
Abstract: 802,490. Rotary engines and pumps. KRUPP MOTORENUND KRAFTWAGENFABRIKEN G.m.b.H., F. March 12, 1957 [March 13, 1956], No. 8144/57. Class 110 (2). In a rotary pump or motor of the rotary abutment type comprising a number of pistons 2 mounted on a common shaft and a corresponding number of abutments 3 mounted on a common shaft in a partitioned casing, see Fig. 3 (not shown), the inlet duct of each unit consists of two passages 5, 9 controlled by a valve 7 and the outlet duct thereof consists of two passages 6, 10 controlled by a valve 8. The valves 7, 8 are actuated manually or automatically by hydraulic or electrical means to permit the device to function as a pump or a motor.
Patent GB-678675-A (GB)
Title: Improvements in or relating to pliers with insulated handgrips
IPC: B25G1/12
Filed: 1951-04-09
Abstract: 678,675. Pliers; insulated handles. BLUM, J. April 9, 1951, No. 8149/51. Class 61 (ii). Handles of pliers are insulated by providing them with tubular coverings in the upper end of each of which is inserted one arm of an angle shaped slip guard. The sleeves 1 are drawn onto the handles and fastened thereto either by drawing them on in warm condition with applied cooling or in cold condition with applied heating. Each guard 3 is composed of insulating material or metal with an insulating covering the leg 4 being secured to the handle by the sleeve 1. The legs 4 may be channel shaped to engage the handle on three sides. In a modification, the two guards are formed by a single piece of flexible material having a central opening through which the jaws 5 of the pliers are inserted on assembling the parts.
Patent GB-933663-A (GB)
Title: Hydrofining catalyst and process
IPC: C10G45/08
Filed: 1961-03-07
Abstract: Gas oils boiling in the range 600 DEG -1100 DEG F. and hydrogen are passed to a reaction zone containing a fixed bed of a hydrofining catalyst, the hydrofining conditions in the zone being a temperature of 500 DEG -1000 DEG F. and a pressure of 50 p.s.i.g.-3,000 p.s.i.g. The hydrogen rate is 50-10,000 SCF/Bbl and the feed rate is 0,1-5 V./V./Hr.  The catalyst comprises 1,15%-5,5% by weight of cobalt expressed as cobalt oxide and 8,5%-16,5% by weight of molybdenum expressed as molybdena on a gamma type alumina, said alumina having a surface area of 200 m2/gm.-240 m2/gm. and an average pore diameter of 70-100 , having been prepared by calcining at 1050 DEG -1250 DEG F. under such conditions, including time, that the desired surface area and pore diameter are obtained.  The catalyst is essentially free of other elements.
Patent GB-965520-A (GB)
Title: Phosphorus-containing heterocyclic esters
IPC: C07F9/6539
Filed: 1963-03-01
Abstract: The invention comprises organophosphorus compounds of the general formula: <FORM:0965520/C1/1> wherein R1 and R2 which may be the same or different are alkyl or alkoxy radicals and X is an oxygen or sulphur atom. They may be obtained by reacting 2-chloromethyl-5-methylthiazole at elevated temperature with a phosphorus acid of the general formula (R1) (R2)P(X)SH in the presence of an acid-binding agent or with an alkali metal or ammonium salt of the phosphorus acid. The reaction is preferably carried out in the presence of a solvent, e.g. acetonitrile, propionitrile, formamide, dimethyl formamide or a ketone such as acetone, methyl ethyl ketone or methyl isobutyl ketone. Suitable reaction temperatures are 50-80 DEG C. The compounds have pesticidal properties (see Division A5).  2-Chloromethyl-5-methyl-thiazole may be obtained by reacting chloroacetic acid thioamide with chloroacetone.ALSO:An insecticidal composition comprises a compound of the general formula <FORM:0965520/A5-A6/1> wherein R1 and R2 which may be the same or different are alkyl or alkoxy radicals and X is an oxygen or sulphur atom (see Division C2) in admixture with a solid or liquid carrier or diluent.  Specified carriers or diluents are talc, chalk, bentonite, clay, water (if necessary with emulsifiers, alcohols, ketones, liquid hydrocarbons, and dimethyl formamide).
Patent GB-333144-A (GB)
Title: Improvements relating to the associated working of kinematographs and gramophones
IPC: G03B31/00
Filed: 1930-03-15
Abstract: 333,144. Roberts, J. H. T. March 15, 1930. Sound recording or reproducing apparatus associated with kinematographs. - In the associated working of a kinematograph and a gramophone, a flexible or jointed shaft c connecting the two machines is supported from the kinematograph by a bracket f which is mounted on the kinematograph and is adjustable in position or form whereby the terminal member of the shaft c may be brought into and held in the desired position relative to the kinematograph. In one construction, a bracket f, which is attached to the casing of the flexible shaft c, extends below the casing of the kinematograph as shown in Fig. 1, and is secured by a clamping-screw h. The shaft c is secured to the driving pulley b of the kinematograph. In an alternative construction, a bracket f, Fig. 2, is hollow and receives a rotatable and slidable rod q adapted to be secured by a screw r. The casing of the shaft c is adapted to slide in a collar m provided on the rod q and to be retained by a screw n. Another form of bracket is provided with slots whereby it may be adjustably mounted by means of the existing screws or bolts of the kinematograph.
Patent GB-1416254-A (GB)
Title: Magnetic disc housing
IPC: G11B17/03
Filed: 1973-02-21
Abstract: 1416254 Magnetic disc record cartridges BADISCHE ANILIN- & SODA-FABRIK AG 21 Feb 1973 [22 Feb 1972] 8477/73 Heading G5R A magnetic disc 3, Fig. 1, is restrained from striking the walls of a cartridge 1 by three or more spring elements 15 symmetrically disposed on the top cover 2 of the cartridge. As shown, Fig. 2, each spring element comprises a spring- loaded piston 22 mounted in a sleeve 21 secured in a cylindrical projection 19 which, together with a central pin 20, is moulded integrally with a portion 18 of the top cover 2. A hub 10, Fig. 1, carries an annular plate 6 which cooperates with magnets 5 on the bottom cover 4 or with a magnet in a recording or playback unit when the bottom cover 4 is removed.
Patent GB-1373653-A (GB)
Title: Power supply circuits
IPC: G05F1/573
Filed: 1972-06-12
Abstract: 1373653 Automatic control of current and voltage JOSEPH LUCAS (INDUSTRIES) Ltd 12 June 1972 [1 April 1971 27 Nov 1971] 8487/71 and 55177/71 Heading G3R A power supply circuit comprises a series regulating transistor and current sensor. The average current in the transistor is limited but an arrangement is provided for allowing higher current to flow for short periods of time. In the arrangement shown in Fig.1, a variable D.C. supply at input terminals 11, 12 normally turns on series transistor 15 through resistor 16 to provide an output at terminals 13, 14. Excessive output voltage causes a Zener diode 24 to break down and turn on a transistor 26 which removes sufficient base current from transistor 15 to maintain a desired output voltage. A resistor 17 senses the transistor current, and when a certain level is reached tends to turn on a further transistor 21 to reduce the drive to series transistor 15. The inclusion of a capacitor 22 allows the maximum current level to be exceeded for short periods by effectively supplying to transistor 21 a signal representing the average current in resistor 17. To prevent damage to transistor 15 by large transient currents, a diode 23 is  connected so as to break down under such conditions and turn on transistor 21 independently of the average sensed current. In modifications, Figs.3, 4 (not shown) a chain of resistors is connected across the series transistor, and the current-averaging capacitor and transientlimiting diode are connected to points on the chain, so that the current limit levels are voltage dependent. In a further embodiment, Fig.6, the bias on series transistor 35 can be reduced by a transistor 42 whose,base-emitter path is connected across resistors 36, 38. Resistor 36 is sensitive to the current in transistor 35, while resistor 38 forms part of a potential divider 37, 38 connected across the transistor, thus rendering the control additionally dependent on the voltage across the transistor. An R.C. circuit 40, 39 connected across resistors 36, 38 allows a given power level to be exceeded for short periods. A further resistor may be included in the potential divider 37, 38 Fig.7 (not shown) in order to achieve more rapid response to voltage changes across the series transistor caused by a shortcircuit of the output terminals.
Patent GB-1535583-A (GB)
Title: Dual rate liquid suspension strut
IPC: B60G11/26
Filed: 1976-03-03
Abstract: 1535583 Fluid springs ATO Inc 3 March 1976 08567/76 Heading F2S A vehicle suspension unit comprises two piston-cylinder liquid or compressive solid springs of different rates arranged end-to-end. As shown the springs have a common cylinder 24a, 24b subdivided by a fixed (Fig. 3, not shown) or floating partition 58. The piston rods 26a, 26b are of different diameters to achieve the different spring rates, and their projecting ends 56a, 56b are connected one to the body and one to the wheel or chassis of the vehicle. The cylinder of one spring may be of different diameter or length from that of the other spring. The fluid pressure in each spring may be the same or different. In the unloaded state of the vehicle, the smaller diameter piston rod 26a will move into its cylinder 24a to provide a first spring force, but the other spring will remain out of action. When the vehicle is loaded the second spring will become operative to assist in supporting the load. The springs also function as dampers.
Patent GB-763487-A (GB)
Title: Improvements in or relating to time-lag devices for electric relays
Inventor: GEESON CHARLES THEODORE
IPC: G04F3/00
Filed: 1954-03-24
Abstract: 763,487. Electromagnetic relays; retarding action. REYROLLE & CO., Ltd., A. March 21, 1955 [March 24, 1954], No. 8601/54. Class 38(5) The contact-operating movement of a relay moves a rod D to turn a lever C from the position shown through an angle L, the lever being pivoted on the axis of a gear wheel B which drives a retarding device through a gear A. A pinion E pivoted.on the lever C co-operates with the gear B and is solid with a ratchet wheel F normally locked by a pawl G biased by a spring H. On energization of the relay the pawl prevents rotation of the pinion E and ratchet F about their own axis so that the gear B is driven and a time delay is imparted to the relay until the pawl is arrested by an adjustable stop J, whereupon the pinion is freed and the remainder of the switching action is completed quickly. When the relay is de-energized the parts are quickly restored', the pawl G riding over the teeth of the ratchet F.
Patent GB-115933-A (GB)
Title: Improvements in and connected with Apparatus for Aerating Sewage and other Foul Liquids.
Inventor: AMES RICHARD
IPC: B01F27/91
Filed: 1917-06-19
Abstract: 115,933. Ames, R. June 19, 1917. Aerating.-In apparatus for aerating sewage by rotary or travelling air-diffusers of the kind described in Specifications 104,361, 107,937, and 110,197, the sewage is supplied to the tanks through vertical tubes 17 carried by a travelling or rotary carriage and provided with bell-mouthed lower ends 13 containing rotary propellers 26, which draw air into the sewage through hollow shafts 16 and through pipes 33 open at the top to the atmosphere and leading to the bellmouthed bases. Troughs 5 on the carriage, which receive sewage, in the case of a travelling carriage, by siphon pipes dipping into a longitudinal trough at the side of the sewage tank and, in the case of rotary apparatus, by means such as described in Specification 110,197, communicate by tubes 12 with the vertical tubes 17. To enable the rotary propellers 26 to be withdrawn from the tubes 17, the blades are hinged and are normally held in horizontal position by lugs 29 on their inner ends pressed by a spring-pressed plate 30.
Patent GB-1369301-A (GB)
Title: Loom weft stop motion
IPC: D03D51/36
Filed: 1972-02-25
Abstract: 1369301 Centre weft fork stop motions WEEFAUTOMATEN PICANOL NV 25 Feb 1972 [3 March 1971] 8830/72 Heading DIE . Failure of weft allows a centre weft fork 16 to pivot and operate a proximity switch 25 to stop the loom. A lever 18 is pivoted on the sley 1 and is attached to a cam 17 and a link 20 that is slidable on the loom frame 4 against the action of a spring 26 and carries a member 23 operating the proximity switch 25. As the sley beats-up, the cam 17 is oscillated by the members 18, 20 and operates the weft fork 16. In the event of weft failure the excess movement of the weft fork 16 stops the oscillation of the cam 17 causing the link 20 to slide on the frame and operate the proximity swich 15.