baber/WOPTO huggingface dataset:
Patent GB-1032077-A (GB)
Title: Apparatus for controlling furnaces
IPC: F23N5/20
Filed: 1964-08-14
Abstract: 1,032,077. Safety control of burners. LANDIS & GYR A.G. Aug. 14, 1964 [Aug. 21, 1963], No. 33352/64. Heading F4T. [Also in Division G1] A flame safety control apparatus for a furnace burner comprising a photo-electric monitor 6, a thermal delay safety relay 7, a power switching relay 15 and a thermal relay 20 provides a scavenging period before fuel is supplied to the burner and an ignition period which extends for a time after the flame monitor has responded to the presence of a flame. In operation, when a thermostatic switch 11 closes, a burner motor 33 is energized and conveys air to the furnace, an ignition transformer 26 and the thermal relay 20 are energized and after 20 seconds the relay switches over the two-way contact 21 to energize the safety relay 7 and the power switching relay 15. The power switching relay 15 closes a contact 19 to open a by-pass fuel valve 31 which supplies a small flow of fuel to the burner. If ignition occurs, the flame monitor 6 opens contacts 23, but the ignition transformer continues to be energized through a parallel path including a contact 17 closed by the power switching relay 15 and a contact 29 closed by the thermal relay 20. The flame monitor also operates a two-way switch 22 to short-circuit the safety relay 7. A holding contact 16 keeps the power switching relay 15 energized. The thermal relay 20 opens its own energizing circuit at the two-way contact 21 and cools in twenty seconds and returns to its initial position de-energizing the ignition transformer and energizing a main fuel valve 37 through a two-way contact 18 of the power switching relay 15; the contact 18 also prevents re-energization of the thermal relay 20. The contacts 23 operated by the photo-cell to control the ignition transformer may be omitted and in consequence the ignition transformer is not energized until the by-pass fuel valve opens.
Patent GB-1190897-A (GB)
Title: Thermostable Resins and their production
Inventor: BALME MAURICE
IPC: C08G8/00
Filed: 1968-07-12
Abstract: 1,190,897. Resin-impregnated glass fibre laminates. RHONE-POULENC S.A. 12 July, 1968 [13 July, 1967], No. 33458/68. Heading B5N. [Also in Division C3] Laminates are made by compressing at elevated temperature several sheets of glass fibre cloth which has been treated with an ammoniacal solution of a polymer of a monohydric or polyhydric phenol with a dianhydride of formula where R is a benzene nucleus or a radical containing a benzene nucleus. It is believed that the heating causes formation of a polyimide.
Patent GB-870932-A (GB)
Title: Device for preplasticization in injection presses
IPC: B29C45/53
Filed: 1959-10-02
Abstract: 870,932. Injection-moulding machines. LECAT, P. Oct. 2, 1959 [Oct. 8, 1958], No. 33474/59. Class 87(2). In an injection moulding machine the return movement of the injection piston causes feed piston means to force material from feed chamber means into the injection chamber in front of the piston. Cold powdered material is fed from a hopper at the rear of an axial cylinder 5 spaced by ducts 3, 4 from a heating cylinder 2, and is fed along these ducts through orifices 10, 11 and into a chamber 9 by the rearward movement of a piston 7, having a rod 6 extending along cylinder 5. Forward movement of said piston causes its head 8 to force the plasticised material through orifice 12 into mould 13. In other embodiments (not shown) the feed ducts may be in the body of the piston and the heated cylinder may reciprocate over a stationary piston. Specification 564,279 is referred to.
Patent GB-429598-A (GB)
Title: Improvements in or relating to apparatus for handling granular or lumpy material
IPC: B65G69/00
Filed: 1933-11-29
Abstract: 429,598. Shoots; trimming and spreading apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and MARSHALL, C. H., c/o Fraser & Chalmers Engineering Works, Erith, Kent. Nov. 29, 1933, No. 33480. [Classes 78 (i) and 78 (iv)] In apparatus for delivering and heaping coal comprising a chamber 1, Fig. 1, from which extend outwards shoots 3, 4, each shoot is inclined at an angle which is less than the angle of repose of the coal and has only one side wall 6, Fig. 3. The coal rolls over the open side of each shoot on to the heap, and so causes rotation of the chamber and even distribution of the material. The chamber 1 is rotatably mounted on bearings 7 at the bottom of a telescopic shoot 2, and may have provision for delivering a portion of the coal through its bottom. One shoot is hinged at 8 to the chamber in order that it can be turned upwards clear of the heap. The coal may be forced to slide along the shoots by pistons 9 reciprocated together by a crank 10. In a modification the chamber is rotated by an electric motor and has only one shoot attached to it. This shoot may be turned into a vertical position for passage through a hatch, and is provided with toggle mechanism for retaining it in working position.
Patent GB-1085979-A (GB)
Title: Improvements in or relating to jacks
Inventor: GRANGER BERTRAM DONALD
IPC: B66F3/08
Filed: 1965-08-05
Abstract: 1,085,979. Screw jacks. METALLIFACTURE Ltd. July 29, 1966 [Aug. 5, 1965], No. 33481/65. Heading B8J. As shown in Fig. 1, a screw-threaded loadlifting member 1 is housed in a U-channel casing 2 and supported on a foot 6. In Fig. 2 a ball- and-socket mounting is provided on a foot plate 10 and the member 1 is not protected. In both constructions a bush 8 threaded on the member 1 carries a load-engaing spigot 5 through a yoke 4 and pivot pins 11. A spring member 7 held by a pin 12 extends across the yoke 4. If the spigot 5 is moved upwardly the spring 7 contacts the outer surface of the casing 2 or rides on the threads of the member 1 to prevent jamming of the screw.
Patent GB-429816-A (GB)
Title: Improvements in or relating to a method of and apparatus for the evaporation, distillation or concentration of aqueous hydrochloric acid solutions
IPC: C01B7/00
Filed: 1934-11-22
Abstract: Aqueous hydrochloric acid is evaporated in steam heated copper vessels in the presence of phosphoric acid to inhibit corrosion of the vessels.  Phosphoric acid of 60 to 80 per cent concentration may be used and soluble alkaline earth salts such as barium or calcium chloride may be added with the phosphoric acid to precipitate traces of sulphuric acid, the deposits being removed periodically or continuously.  Parts of the apparatus not in contact with the phosphoric acid are separately heated to a temperature above that of the boiling point of hydrochloric acid to prevent condensation of the vapour.
Patent GB-1013198-A (GB)
Title: Improvements in drum brakes
IPC: F16D65/09
Filed: 1963-08-26
Abstract: 1,013,198. Internal shoe drum brakes. BENDIX CORPORATION. Aug. 26, 1963 [Aug. 27, 1962], No. 33638/63. Heading F2E. A brake has a pair of shoes 20<SP>1</SP>, 22<SP>1</SP> mounted on a fixed support with one pair of their adjacent ends co-operating with an anchorage mechanism (Fig. 1, not shown) whilst the other pair of ends are inter-connected by a strut engaged by a member 62<SP>1</SP> which is movable on a bracket 54<SP>1</SP> mounted frictionally on a fixed support and is resiliently urged against an abutment 66<SP>1</SP> on the bracket. The strut comprises a socket 48<SP>1</SP> with a flange 50<SP>1</SP>, against which the member 62<SP>1</SP> bears, and an adjusting screw 46<SP>1</SP>. The adjusting screw may be turned automatically by a device described in Specification 833,729, as shown attached to the shoe 20 and to the return-spring 39<SP>1</SP> in Fig. 3. Alternatively the automatic device may be omitted and the screw 46<SP>1</SP> adjusted manually (Figs. 1 and 4, not shown). The member 62<SP>1</SP> is a spring retained on the bracket 54<SP>1</SP> by projections 64<SP>1</SP> and limited in movement between abutments 66<SP>1</SP> and 67<SP>1</SP>. The plate 54<SP>1</SP> is pivoted on the fixed back-plate of the brake at 56<SP>1</SP> and is urged into frictional contact with it by a spring 581. When the brake is released after application the trailing shoe 22<SP>1</SP> tends to remain in contact with the brake drum. This effect is counteracted by the member 62<SP>1</SP> which resiliently bears on the flange 50<SP>1</SP> and moves it until stopped by the abutment 66<SP>1</SP>. If the travel of the shoe 22<SP>1</SP> towards the drum is excessive, due to wear, when the brake is applied the flange 50<SP>1</SP> will try to carry the member 62<SP>1</SP> beyond the abutment 67<SP>1</SP> thereby turning the bracket 54<SP>1</SP> on its pivot. The force of the return spring 39<SP>1</SP> being less than the force required to turn the bracket on its pivot against friction, the bracket will remain in its new position when the brake is released. Other forms of the member 62<SP>1</SP> are illustrated in Figs. 1 and 4 (not shown).
Patent GB-1346537-A (GB)
Title: Electrically-powered multi-purpose tools usable as rotary-percussive  drills
IPC: B25D11/10
Filed: 1972-07-19
Abstract: 1346537 Drilling machines METABOWERKE KG CLOSS RAUCH & SCHNIZLER 19 July 1972 [9 Aug 1971] 33703/72 Heading B3C [Also in Division B4] A tool for use as a drill, or a screwdriver, comprises a spindle 2 rotatable by an electric motor (not shown) in one sense or the reverse sense depending on the condition of an electric switch (not shown). With sleeve 8 cammed to the illustrated position by eccentric 10 on a rotatable shaft 11, a toothed ring 5 fast with the spindle will be prevented from being moved rearwardly into engagement with a second toothed ring 6 secured in the housing 1 upon the tool being pressed against a workpiece. The teeth on the rings have the form illustrated in Fig. 3, and the angle a is not greater than 65 degrees, and preferably 45 degrees. Thus with the tool conditioned as shown and used as a drill (i.e. with a drill bit attached to the spindle and with the spindle rotated in the one sense), it will perform pure rotary drilling. Rotating knob 14 through 180 degrees will allow the rings to engage when the spindle is forced rearwardly into the housing 1 against the force of spring 20; thus in this condition the tool with a drill bit will perform rotary percussive drilling and the flanks 31 of the teeth on the rotary ring 5 will be the leading flanks and will ride up flanks 31 of the teeth on the stationary ring 6. When used for screwing in and unscrewing, the spindle is rotated in the one sense and the reverse sense respectively, and the rings 5, 6 are prevented from engaging. Should the rings engage during unscrewing, jamming will not occur since the teeth will ride over each other due to the inclination of the flanks 32.
Patent GB-1444397-A (GB)
Title: Fluid pressure control valve
IPC: B60T8/26
Filed: 1973-07-16
Abstract: 1444397 Dual circuit control valves GIRLING Ltd 24 June 1974 [16 July 1973 26 July 1973] 33821/73 and 35735/73 Heading F2F A dual circuit control valve assembly comprises two valves each having a stem movable in response to inlet pressure to close the valve against a preload supplied by a common means comprising a tension spring responsive to vehicle loading and force transmitting means acting on the stems to transmit the spring force thereto. Fig. 1 shows a valve assembly with two circuit inlets 2, 2A and brake line outlets 3, 3A. Upon pressure build-up in both circuits, pressure acts on the cross-sectional difference between right- and left-hand diameters of the stem 5 of one valve 8, 9, and on the right-hand end of a stem and closure member assembly 17, 19, to eventually overcome the bias of the spring 25 to close the valves. Upon pressure failure in either circuit, the pressure build-up in the other circuit to close its valve is doubled. Fig. 2 shows valves 38 operating as the valve 8 in Fig. 1, whereby if a failure occurs in one circuit a plate 47 is pivoted about the stem of the non-operative valve for movement of the other valve. The valves can act alternatively as pressure reducing valves.
Patent GB-801617-A (GB)
Title: Improvements in or relating to electrical heating unit and method of making the same
Inventor: ROSS EDWARD JOSEPH
IPC: H05B3/48
Filed: 1956-11-06
Abstract: 801,617. Sheathed electric heaters. TUTTLE & KIFT, Inc. Nov. 6, 1956, No. 33902/56. Class 39(3) [Also in Group XXII] A tubular sheathed heating element comprising one or more heating resistors e.g. helical wires embedded in compacted insulation material e.g. powdered or granular magnesium oxide 18 in a tubular sheath 17 has a local enlargement 14 at one or more selected places between the ends of the sheath formed by an abrupt annular outward bulge within which the insulation is densely compacted. The bulge or outward corrugation 14 may be adjacent one or both ends and is formed by placing clamps 22, 23 closely around the metallic sheath and spaced slightly apart,. the clamps then being forced together in the direction of the length of the sheath to compress the sheath and to enlarge it locally at 14 and to increase the density of the insulation in the interior of the bulge. The insulation at the point of the bulge may be a plug of plastic material e.g. silicone rubber, which is on compression deformed to enter the bulge and forms a moisture-proof seal. A straight tubular element formed with a bulge near one end may be inserted through openings in the end wall of a reflector until the bulge forms a stop bearing against theouter end wall of the reflector; and a fastener e.g. a cupped washer with a central opening from which extend radial slits is slid over the other end of the element so as to bear on the outer side of the other end wall of the reflector. The clamps are in two halves 24, 25 hinged together at 28 and tightened on the tube 17 by a clamping bolt 29. Semi-cylindrical recesses 30, 31 formed in the halves of the clamp fit tightly over the tube 17. These recesses may be of short length for the end clamp 22, so that end walls 34, 35 of the recesses abut against the end of the sheath to maintain the insulation in place, grooves 36, 37 in the clamp 24 allowing passage for the terminal pin 21 extending out through the end of the tube. The other clamp 23 may extend over a short length of the tube or may extend to engage the further end of the tube. Two bulges may be formed to serve as stops at the end of a bearing, and bulges may be formed at the ends of spirally formed tubular hot-plates.
Patent GB-385098-A (GB)
Title: Appliances for playing a board game simulating golf
IPC: A63F3/00
Filed: 1931-12-08
Abstract: 385,098. Board games. BURGESS, L., School House, Chesterfield Road, Mansfield, Nottinghamshire. Dec. 8, 1931, No. 33954. [Class 132 (ii).] Appliances for playing a board game simulating golf comprise a board, Fig. 1, having depicted thereon a number of golf " holes " in plain view, each " hole " comprising a central fairway section b and " pull " and " slice " sections c, d in the respective sides thereof, each " hole " being circumscribed by a boundary line and subdivided by transverse lines into distinctively marked or coloured sections, a schedule correspondingly marked or coloured to indicate the club to be used in playing from a given space, and a plurality of discs, Fig. 2, representing the different clubs referred to in the schedule, each disc being provided with a rotatable pointer g a plurality of circumferentially spaced sections, numerals in the sections indicating moves to be made when the pointer stops thereat, and indications h, j in the sections of some of the discs that the moves resulting therefrom must be made into the " pull " or " slice " sections of the " holes." The pieces for moving over the board may take the form of figures, pegs or balls.
Patent GB-1049749-A (GB)
Title: Flameless reaction of liquid hydrocarbons to form carbon monoxide and hydrogen
Inventor: BUSCHMANN KARL
IPC: C01B3/38
Filed: 1963-08-28
Abstract: A process for making a mixture of hydrogen and carbon monoxide comprises reacting vaporizable liquid hydrocarbons with amounts of oxygen insufficient for complete combustion over a platinum catalyst in a first stage and completing the reformation of the hydrocarbons by reaction with steam and carbon dioxide over a nickel catalyst in a second stage, the reaction mixture, prior to contacting the platinum catalyst, being passed through a layer of an inert granular material of poor thermal conductivity which is free from heavy metals and heavy metal compounds.  Granular materials mentioned are ceramics, highly pored alumina, aluminium silicate, or blocks of porous magnesium oxide.  The process is carried out in an apparatus similar to that described in Specification 834,595.  Steam and/or carbon dioxide may be reacted in the first stage, e.g. after mixing with the hydrocarbons, e.g. light naphthas, and with the oxygen, and after the mixtures have been preheated, e.g. to 200 DEG  to 400 DEG  C.  The steam and carbon dioxide required for the second stage are provided by the reaction in the first state.ALSO:A process for making a mixture of hydrogen and carbon monoxide comprises reacting vaporizable liquid hydrocarbons with amounts of oxygen insufficient for complete combustion over a platinum catalyst in a first stage and completing the reformation of the hydrocarbons by reaction with steam and carbon dioxide over a nickel catalyst in a second stage, the reaction mixture, prior to contacting the platinum catalyst, being passed through a layer of an inert granular material of poor thermal conductivity which is free from heavy metals and heavy metal compounds.  Granular materials mentioned are ceramics, highly pored alumina, aluminium silicate, or blocks of porous magnesium oxide. The process is carried out in an apparatus similar to that described in Specification 834,595.  Steam and/or carbon dioxide may be reacted in the first stage, e.g. after mixing with the hydrocarbons (e.g. light naphthas), and with the oxygen, and after the initial materials have been preheated, e.g. to 200 DEG  to 400 DEG  C. The steam and carbon dioxide required for the second stage are provided by the reaction in the first stage.
Patent GB-1014200-A (GB)
Title: Improvements in or relating to electron beam guns
IPC: H01J37/305
Filed: 1962-09-05
Abstract: 1,014,200. Electron beam apparatus. W. C. HERAEUS G.m.b.H. Sept. 5, 1962 [Sept. 5, 1961], No. 34054/62. Heading H1D. An electron gun for an electron beam melting furnace has a single cathode filament 1, e.g. annular, as shown, or linear, a focusing electrode 3 and an anode 4 provided with adjacent apertures, not necessarily identical, to form a plurality of individually focused beams, magnetic electronoptical focusing and/or deflection means only, e.g. magnetic coils 6, being provided beyond the anode. The coils have a ferromagnetic core 7 secured to the anode and preferably all coils have the same number of turns and are fed with equal currents, but some of the coils may have a higher number of ampere turns. The cathode may be effectively emissive only in the regions overlying the apertures in the focusing electrode and anode, e.g. by varying the thickness or the emissivity of the cathode around its periphery. The chamber above the anode may be separately pumped from the remainder of the apparatus. The magnetic deflection system constitutes an ion trap.
Patent GB-427342-A (GB)
Title: Improvements in or relating to road sweeping machines
IPC: E01H1/02
Filed: 1933-12-05
Abstract: 427,342. Brushes. LEWIN, W. J., Sunnydale, Barwick Road, Scholes, near Leeds. Dec. 5, 1933, No. 34121. [Class 19] [See also Group X] In road-sweeping machines of the kind comprising a rotary brush 1, the shaft 5 of which is divided transversely into sections which are jointed together, the brush sections are resiliently suspended to afford flexibility to the brush as a whole in a vertical direction. In the construction shown, the brush is carried by a beam 3 having a spring-controlled arm 3y which is pivoted at 3x to a bracket 10 mounted on the brush casing 4. The beam is connected to the brush shaft by two-armed links 6, the vertical arms of which are resiliently connected to the beam by springs 8. The horizontal arms 6x of the links constitute stops for preventing the brush from fouling the casing. The two shaft sections shown are jointed together by a coupling sleeve 7 which permits of a certain amount of relative angular movement between the sections. The sleeve is mounted in ball bearings carried by the centre link 6.
Patent GB-507165-A (GB)
Title: Improvements in or relating to cinematographic apparatus
IPC: G03B41/04
Filed: 1937-12-10
Abstract: 507,165. Kinematograph apparatus. BAIRD TELEVISION, Ltd., and BAIRD, J. L. Dec. 10, 1937, No. 34199. [Class 97 (i)] In apparatus in which a continuously or intermittently moving film is continuously projected or exposed by means of two optical systems alternately brought into use, a mirror which moves into the optical path between one of these systems and a third system continuously in use, has a strip adjoining its leading edge rendered non-reflecting, so that it does not begin to reflect light to one system until it also cuts off light from the other system. As shown, the image 1 on an intermittentlyfed film in a two-image gate is projected, while the film is stationary, by a fixed lens 4 and a, fixed lens 3. While the film is being fed upwardly, the image 2 on the film is projected by a moving, compensating lens 5 and the lens 3, light being reflected between the lenses by a fixed reflector 6 and a mirror 7 which moves into ,position, prior to the film movement, from a position 8. The part 9, 10 of the mirror is blackened, to prevent reflection of the beam from the image 2 until the edge 10 of the mirror begins to cut off the beam from the image 1.
Patent GB-339085-A (GB)
Title: Improvements in or relating to cots
IPC: A47D7/04
Filed: 1929-11-09
Abstract: 339,085. Court, P. G., and Bentham, H. M:. Nov. 9, 1929. Bedsteads combined with cots; folding and telescopic bedsteads.-A folding cot, of the kind adapted for attachment to a bedstead and consisting of a base member 7 with hinged side member 2, end members 3 hinged to the side member and hinged legs 4, is attached to the bedstead by clamps k each selectively engaging one of a series of holes provided in an angle bracket e hinged to the base member 7. According to the Provisional Specification the longitudinal members of the base 7 and side 2 may be telescopic.
Patent GB-837216-A (GB)
Title: Process for the production of optically active amino acids
Inventor: WATSON JAMES
Filed: 1956-11-09
Abstract: Optically-active amino acids having the general formula NH2.C(R).COOH, R being a hydrogen atom or an alkyl, aryl or aralkyl group, which may be substituted or unsubstituted, are obtained by adding an optically active acid to a mixture of the D and L forms of a basic compound of the formula NH2.C(R).X, where X is a group which is a functional derivative of a carboxylic group and is transformable to the carboxylic group on hydrolysis, thereby forming a mixture of D-base : optically active acid and L-base : optically active acid components, separating these two components by fractional crystallization, treating at least one of these separated components with an acid ion-exchange resin whereby the resin combines with the base and liberates the optically active acid, and hydrolysing the optically active base with acid to the corresponding optically active amino acid.  The optically active amino acid products may be subsequently reacted with phosgene to provide optically active anhydrocarboxyamino acids of the formula <FORM:0837216/IV (b)/1> The group X may be cyano, amide or carboxylic ester.  The acid used for resolution is preferably L(+)-tartaric acid.  Exemplified products are diastereoisomers of leucine, norleucine, valine, norvaline, phenylalanine and a -amino-n-butyric acid.