baber/WOPTO huggingface dataset:
Patent GB-423564-A (GB)
Title: Liner for type-bar-making machines
IPC: B41B11/52
Filed: 1934-07-17
Abstract: 423,564. Type-bar-making machines. HEMLIN, J. W., 34B, Malmskillnadsgatan, Stockholm, and ANDERSSON, C. A., 11, Nygatan, Sundsvall, both in Sweden. July 17, 1934, No. 20892. Convention date, July 17, 1933. [Class 100 (iii)] Moulds.-An adjustable mouldliner, which is adapted to be locked in position by the metal of the first cast, is formed with a recess which is open at the front side for co-operation with a tool for adjusting the liner. The liner 1, Figs. 1 and 3, is formed with a recess 5, which extends from front to back, and is bounded at one side by flanges 6. A spring 2 serves to hold the liner frictionally in position. The adjusting-tool comprises a graduated bar 10, Fig. 7, carrying a sliding member 11, which is held in adjusted position by a detent 12 engaging with a rack 13. The member 11 carries a tongue 15 which is inserted in the recess 5 in the liner, and the bar 10 is moved along until a projection 16 thereon encounters the fixed mould-liner 21. The metal that fills the recess 5 enters one of the usual grooves 8 in the mould wall, so that the liner is held in position. The liner is also engaged with the slug that is formed between it and the left-hand fixed liner 22.
Patent GB-839813-A (GB)
Title: Catalytic conversion of hydrocarbons
IPC: C07C5/333
Filed: 1958-06-30
Abstract: A dehydrogenation catalyst comprises alumina (precipitated from an aluminium salt solution by means of an alkaline agent) and supported thereon, 0.025-3% by weight of K, Li or Rb oxide (or mixture thereof) and 3-4% by weight of Cr or Mo oxide (or mixture thereof), the catalyst having a surface-area of 30-100 M2/g.  The catalyst is prepared by impregnating the alumina with a heat-decomposable compound of K, Li or Rb, calcining at above 1400 DEG  F., impregnating with a heat-decomposable compound of Cr or Mo and calcining at above 1300 DEG  F.  Preferably the initial calcination brings the surface-area to 80-150 M2/g.; particularly, the final calcination is effected at 1600-1700 DEG  F. for 4-6 hours and brings the final surface-area to 50-80 M2/g.  The catalyst is stated to be used for the conversion of hydrocarbons (e.g. butane to butadiene) by cyclic adiabatic processes.
Patent GB-460278-A (GB)
Title: Improved machines for manufacturing artificial stone specially applicable for the manufacture of concrete tiles
IPC: B28B3/12
Filed: 1935-07-24
Abstract: 460,278. Conveyers. ABRAHAM, R.A. July 24, 1935, No. 20986. [Class 78 (i)] [Also in Group V] Relates to machines for making concrete roofing-tiles in which a succession of opentopped moulds is fed to charging means and then to moulding means where the mixture is consolidated by multiple rollers having relative reciprocating movement with the moulds as described in Specifications 313,295, [Class 87 (ii)], and 359,928, [Group V]. The moulds 10 are fed in contact with one another by fingers 39 on endless chains beneath a hopper 12 containing concrete, and, if desired, beneath a further hopper 13 containing sand. Rollers adjacent the outlets of the hoppers 12, 13 are driven to rotate respectively with and against the motion of the moulds. The filled moulds then pass on to a conveyer 14, and, on emerging, operate a switch 23a for driving an electric motor whereby the speed of the conveyer 14 and of further conveyers 15, 19 is accelerated. The conveyer 15 is mounted on a frame 16 that is raised to bring the mould carried thereby into pressure engagement with an intermittently-advanced web 123 of fabric passing beneath a frame provided with a series of rollers 113 that are reciprocated by a connecting-rod 117. The frame 16 is then lowered, and the mould containing the compacted material passes to the conveyer 19 and thence to a conveyer 20, where the moulds are moved forwardly with the same speed as that of the feeding fingers 39, each mould acting on the rear of the one in front of it. The tiles in the moulds may be divided by a device 138 and they may be finished with sand. The finished tiles are removed together with a loose bottom plate of concrete or steel of the mould, and the empty mould then resting on a pivoted frame 142 is lowered on to a roller conveyer 27, by which it is fed to the feeding end of the machine. At the feeding end of the machine, a pivoted roller frame 143 raises an empty mould simultaneously with the lowering of the empty mould at the finishing end of the machine.
Patent GB-366869-A (GB)
Title: Improvements in and relating to terminals
IPC: H01R9/26
Filed: 1931-07-23
Abstract: 366,869. Binding-posts. KNœMANN, H., 9, Moltkeplatz, Essen, Germany. July 23, 1931, No. 21078. Convention date, July 28, 1930. [Class 38 (i).] A double-ended binding post consists of a tubular body b having a tapered space a at the bottom to receive a wire d at each end, each being clamped by a block e actuated by a screw f. The block is attached to the screw by a pin g entering an annular groove h, and the nose i is flattened or grooved. Locking-nuts o are provided. At the centre of the body b a partition may be fixed, and a screw may be provided for attaching a strip for connecting together two terminals, a washer having resilient teeth on both sides being interposed.
Patent GB-1222363-A (GB)
Title: Improvements in or relating to information retrieval systems
IPC: G06K17/00
Filed: 1967-05-05
Abstract: 1,222,363. Cassette players. MOLINS MACHINE CO. Ltd. and R. H. G. RAINE. 3 May, 1968 [5 May, 1967], No. 21110/67. Heading G5R. A selected tape cassette is ejected from a random, toroidal store, transferred to a tapetensioning and rewind station then to a playing station and after use back to the first station, then reinserted into the store. In Fig. 1, the store 10 is rotated by rollers 11 until the desired cassette 12 is detected by " head " 18, each cassette being coded by magnetic or other blocks to actuate reed relays or microswitches respectively in the head 18. A plunger 19a ejects the cassette to a carrier 23 which then transfers the cassette from position B to A where the tape is tensioned at 21 by counterrotating spindles. The carrier retracts and the device 22 rotates about axis 26 to position the cassette at C whereupon the carrier moves the cassette to position D where it is transduced by a playing device 20. During this time, the cassette which was at D is now at A and is rewound at station 21 and reloaded into the store 10 by plunger 19b. The cassettes have ribs 16 to permit loading and handling. The store stops after one revolution and a lamp is lit if the selected cassette is not available. In a modification (Fig. 3, not shown), the cassette carriers 24, 25 are merely rotatable while the player 20 and winding device 21 are movable to engage and disengage with the cassettes. The store consists of grooved rollerdriven bevel wheels carried on a subframe 208 (Fig. 4) removable on castors 210 from the main enclosure 205. The cassettes are detected by " head " 220, while microswitches 221, 222 engage in detents 216 to ensure correct identification and that the store stops with the desired cassette opposite the ejection plunger 237. The plunger is operated by a chain 232 driven by a sprocket on the shaft of motor 230. A reversible motor 243 rotates a shaft 242 carrying face cams 240, 241 operating followers A, C to shift the tape winding device 202 and player 201 while a follower B on cam 241 locks the player in its operational position. Two cam and link devices 256 on the shaft 242 rotate the cassette carriers to bring them into operative association with the player 201 and winding device 202. Closure of an outer door 207 operates microswitches to give a " stand by" signal and to lock the subframe 208 against vibration &c.
Patent GB-1122208-A (GB)
Title: A method of treating an electrically conductive workpiece to give it a harder exterior
Inventor: STRINGER JACK ELDON CRAWFORD
IPC: B23K11/00
Filed: 1966-03-22
Abstract: An electrically conductive metal is coated with Nb, V, Zr, and Hf by the spark discharge coating apparatus described in Specification 1,122,207.
Patent GB-463850-A (GB)
Title: Improvements in or relating to silencers for internal combustion engines
IPC: F01N1/00
Filed: 1936-07-31
Abstract: 463,850. Exhaust-silencers. HAWLE, J. July 31, 1936, No. 21316. Convention date, Aug. 1, 1935. [Class 7 (ii)] A silencer comprises a series of chambers b arranged within a casing a with closed pointed ends directed towards the inlet end of the casing, and with their other ends open, so that the gases passing along the annular space surrounding the chambers b exert a suction action upon the open ends of the chambers. A sieve-like tube f may be fitted into the last chamber and connected to the outlet d.
Patent GB-1162206-A (GB)
Title: Improvements in Overcurrent Relays
Inventor: SIMPSON MICHAEL CHARLES STEPHE
IPC: H02H1/04
Filed: 1966-05-13
Abstract: 1,162,206. Protective systems. ENGLISH ELECTRIC CO. Ltd. 11 May, 1967 [13 May, 1966], No. 21322/66. Heading H2K. A relay capable of operating substantially instantaneously in response to overcurrents above a predetermined magnitude is prevented from incorrect operation due to D.C. offset such as produced by a reactive source when sudden changes in current level occur. A rectified voltage proportional to the magnitude of the A.C. current I flowing through a protected equipment is derived from a transformer T1, resistor R1 and rectifier B1 and applied across a potential divider comprising capacitors Cl, C2, the capacitor C1 being shunted by a resistor R2. The voltage across the capacitor C2 is arranged to be initially half of the rectified voltage, but the charging of this capacitor C2 through the resistor has the effect of adding a further voltage which increases with time in dependence on the decay time constant of the mean value of the A.C. current. This results in the total voltage across the capacitor C2 being representative of the steady state A.C. current at any time, but introduces a time delay for overload currents below the predetermined magnitude. The voltage across capacitor C2 is applied to a level detector LD comprising transistors TR1 . . . TR3 with positive feed-back circuit R7, D1. The output of the level detector may be applied to a thyristor TH1 or to an electromagnetic relay RL1 in a protective or alarm circuit.
Patent GB-831138-A (GB)
Title: Improvements relating to the insulation of electric windings
Inventor: BOWLES BRIAN FREDERICK
IPC: H01F41/12
Filed: 1957-07-05
Abstract: 831,138. Electric coils. BRITISH THOMSON-HOUSTON CO. Ltd. July 4, 1958 [July 5, 1957], No. 21373/57. Class 35. A coil is provided with high-temperature inter-turn insulation by insulating the unwound conductor with glass fibre; impregnating the subsequently wound coil with a suspension, in a liquid vehicle, of a powdered glass having a softening temperature lower than that of the glass fibres; then heating the impregnated coil until the vehicle is removed and the powdered glass softens and bonds to the glass fibres to form a protective coating. A suitable vehicle is a solution of nitro-cellulose in amylacetate; suitable glasses are a boro-silicate glass for the fibres and a lead-borate glass for the powder. Specification 625,466 is referred to.
Patent GB-228959-A (GB)
Title: Improvements in the manufacture and production of oxygenated organic compounds
IPC: C07C29/151
Filed: 1923-08-23
Abstract: In the production of methanol and other oxygenated organic compounds by the catalytic interaction of carbon oxides and hydrogen under pressure, the gas mixture is preliminarily subjected to an exhaustive purification treatment to remove in particular organic sulphur compounds and volatile iron compounds. The organic sulphur compounds such as carbon oxysulphide are absorbed or decomposed, after unsaturated and aromatic hydrocarbons have been eliminated, by passage over active carbon, soda-lime, potashlime, or a hot mass containing caustic alkali; or by mixing the gas with steam and passing it over a catalyst such as iron oxide to liberate hydrogen in sufficient quantity to decompose the organic sulphur compounds to hydrogen sulphide, which is then removed.  The gas is freed from volatile iron compounds such as iron carbonyl by passage over active carbon or a copper-containing mass such as metallic copper or copper salts, mounted, if desired, on a carrier; or the gas may be passed over a methanol-producing catalyst itself, provided that a temperature below 300 DEG  C. is employed so as to avoid the formation of methane.  The purification treatment may be effected under pressure.  Specification 20488/13 is referred to.
Patent GB-463404-A (GB)
Title: Improvements in steel hatch covers
IPC: B63B19/26
Filed: 1935-07-29
Abstract: 463,404. Hatches. WILLIAMSON, D., and MACGREGOR, J. July 29, 1935, No. 21448. [Class 113 (i)] In ships' hatches a hatch section is constructed to make an external metal-to-metal joint and an internal resilient packing joint with an adjacent section or the hatch coaming, clamping means being provided for compressing the surfaces together. In Fig. 1, the hatch sections A, B are provided with metal strips 9, 10 along their abutting surfaces and the packing strip 11 carried by the section B is pressed against the angle section carried by the section A. The sections are clamped by a draw bolt 16 and wedge 17. As shown in Fig. 2, the side plate 7 of section 13 makes a metal-to-metal joint with the angle section 18 carried by the coaming, whilst the interior parking strip 21 bears on the edge of the coaming 19. The screw clamp 23 is operated by a tommy-bar inserted in the hole 26.
Patent GB-946952-A (GB)
Title: Improvements relating to voice-frequency signal receivers as used in telephone systems
Inventor: DRAKE BERNARD
IPC: H04Q1/446
Filed: 1961-06-14
Abstract: 946,952. Voice-frequency receivers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 30, 1962 [June 14, 1961], No. 21484/61. Headings H4K and H4R. A voice-frequency signal receiver in a telephone system includes a limiter which comprises an input circuit coupled through transformer T1 (or T4, Fig. 2) to a preceding voice-frequency circuit of the signal receiver, an output potential divider R41, R9, L, R10 (Fig. 1), or R29, R30, R31 (Fig. 2), connected across direct current supply leads SL1, SL2, or SL3, SL4 (Fig. 2), and having an intermediate point connected or coupled to a succeeding voice-frequency circuit of the signal receiver, and a limitation-producing transistor TR2, or TR7 (Fig. 2), operating as an emitter-follower and having its base connected directly or indirectly to the input circuit and its collector-emitter path connected across part of the output potential divider. The operation of the limiter in response to pure signal current of the signalling voice frequency received at the receiver, this current being of material magnitude, is such that excursions of one sign of the received signal current give rise to excursions of the potential of the base of the limitation-producing transistor that bring this transistor to a fully-conducting (bottomed) condition whereas excursions of opposite sign of the received signal current give rise to excursions of the base potential that bring the transistor to a substantially non-conducting (cut-off) condition. The receiver shown in Fig. 1 includes a guard circuit, which is omitted from the simpler form of receiver shown in Fig. 2.
Patent GB-859610-A (GB)
Title: Improvements in or relating to chill moulds for continuous casting
IPC: B22D11/041
Filed: 1958-07-04
Abstract: 859,610. Continuous - - casting machines. MANNESMANN A.G. July 4, 1958 [Aug. 8, 1957], No. 21501/58. Class 83 (1). A continuous-casting chill-mould comprises adjustable-elements A clamping together mouldwall parts 4, 6, 8, 10, by engagement with the parts at opposite central positions, and further elements B having engagement with the walls at positions staggered with respect to the former positions. The clamping-elements have projections 22, 22a and 34, 34a engaging lugs on the tongued-and-grooved wall-parts, and are adjustably clamped together by turn-buckles 16, 16a and 28, 28a. The clamps A, B are connected by lugs 38, Fig. 3, engaging screws in projections 40, 40a so as to allow axial movement only, or may be connected by a rod 56, Fig. 4, passing through slots in each part. The clamping- elements may bear merely on ridges 54, Fig. 5, of the mould. The clamps may have more than two parts, and the mould may comprise more than four wall-parts, and be hexagonal or octagonal. In use, one of the clamps is secured to a casting-table.
Patent GB-500261-A (GB)
Title: Improvements in and relating to electric arc lamps
IPC: H05B31/00
Filed: 1937-08-04
Abstract: 500,261. Arc lamps. KORTING & MATHIESON AKT.-GES. Aug. 4, 1937, No. 21534. Convention date, Aug. 7, 1936. [Class 39 (i)] In an arc lamp the electrodes of which are fed by one or more motors in parallel with the arc, one of which is controlled for changes of voltage in the arc by a relay connected across the are and the motor, means are provided for regulating the action of the relay to suit carbons of different sizes, the terminal voltage across at least one of the motors being at the same time kept constant. In the arrangement shown the motor 9 is controlled by the relay 4 and feeds the electrode 1 and the motor 6 feeds the electrode 2 at a constant rate. To allow for the use of carbons of different sizes resistances 5, 7 are provided in the circuit of the relay 4 and the motor 6 respectively and regulated by arms 8, 81 connected together. The relation of the arms 8, 8<1> can be adjusted initially to compensate for differences in the motors.
Patent GB-615723-A (GB)
Title: Resin emulsions
IPC: C09D131/04
Filed: 1945-08-23
Abstract: A stable polyvinyl acetate emulsion is obtained by polymerising vinyl acetate in an aqueous medium containing a hydrophilic colloidal emulsifier to obtain an emulsion in which x (the average size of polyvinyl acetate particle in microns) and y (the percentage emulsifier by weight of the polyvinyl acetate) are equal to or less than those which satisfy the equation x(y-0.5) = 9, x not being greater than 5 and y being not greater than 10, and adding to this emulsion with stirring 3-25 per cent (of weight of emulsion) of a conditioning agent which is one or more solvents or plasticisers for polyvinyl acetate having a solubility in water of not more than 10 per cent.  The combination of solvents and/or plasticisers may have as a whole the required solubility. Conditioners specified are benzene, toluene, xylene, ethyl and butyl acetates, cyclohexanone, glycol esters and ethers, dibutyl or di-ethyl phthalate, butyl b -hydroxy butyrate, ethanol ethyl ether, triethylene glycol-2-ethyl butyrate and hexoate, liquid copolymers of vinyl acetate with butyl or octyl crotonate. Pigments such as titanium dioxide, iron oxides, mineral black, ultramarine blue, bone black, venetian red, and fillers such as bentonite and diatomaceous earth, and dyes, resins, and oils may be added.  Water may be added to the solvent or plasticiser and the mixture added to the resin emulsion, which may be polymerised according to Specification 568,884, using two emulsifiers such as hydrolysed polyvinyl acetate, gum arabic and gum tragacanth, while the sodium salt of the sulphonic acid of dioctyl succinic ester may be added as a surface depressant.  The emulsions may be used to coat paper, wood, metals, textiles and regenerated cellulose.
Patent GB-1340123-A (GB)
Title: Liquid metal heat exchanger
IPC: F28D7/16
Filed: 1971-04-19
Abstract: 1340123 Tubular heat exchangers FOSTER WHEELER CORP 19 April 1971 [4 Feb 1970] 21574/71 Heading F4S In a tubular heat exchanger 10 comprising an outer cylindrical shell 12, a central cylindrical tube 22 is surrounded by an annular tube bundle 36 extending between curved tube sheets 24, 26. A first liquid, e.g. molten sodium, enters at 32, flows through the tubes and then leaves through outlet 16. The tube 22 functions as an inlet for a second liquid metal and terminates in a flow guide assembly 22a comprising a plurality of guides 42. The tube bundle 36, which includes an expansion loop in the region designated by double arrow A, is supported by an arrangement of annular baffles 44 which constrain the second liquid metal to follow a tortuous upward path over the tubes before leaving through an outlet 34. The circumferential spacing between adjacent tubes decreases with increasing radius in the tube bundle (see Fig. 2).
Patent GB-1047002-A (GB)
Title: An apparatus for use as a vibrator, crusher, pulverizer or material mixer
IPC: B06B1/18
Filed: 1964-05-25
Abstract: 1,047,002. Vibratory mechanisms. E. R. SARTOR and E. W. SARTOR. May 25, 1964, No. 21597/64. Heading F2X. [Also in Division B2] A vibrator, which may be used as a mixer, crusher or pulverizer comprises a cylindrical housing 1 with end walls 3, 5, Fig. 2 (not shown), forming a rotor chamber 7, and an annular rotor 2 which is rotated around the inner surface 8 of the housing 1 by fluid, e.g. compressed air, reaction jets issuing from a ring of passages 15 in the rotor side wall and having inlets in a rotor end face 13 which successively register with a flared housing inlet 9, exhaust fluid leaving the rotor chamber 7 by a ring of housing end ports 10. The housing is recessed at 11 adjacent the exhaust ports 10. The rotor has one or more different sized starting reaction jet passages 17 fed from a chamber 14 in the rotor and constantly in communication with inlet 9. Fluid escaping past the rotor ends from chamber 14 suspends the rotor endwise. In a modification, Fig. 4 (not shown), water injected by a nozzle 33 into the rotor chamber 14 is vaporized by a gas burner 31 under the housing and fed over the rotor end to the reaction passages 15. In a further modification the housing may have a two- or three-lobed inner surface to provide predetermined major directions of vibration. When used as a crusher, Fig. 9 (not shown), solid, liquid or a mixture thereof fed from a side shoot 36 is crushed between the rotor and inner surface 8 and ejected with the driving fluid from the exhaust ports.
Patent GB-828481-A (GB)
Title: A method and means for converting slotted work beds into suction beds
Inventor: MENELAUS FREDERICK ANDREW
IPC: B25B11/00
Filed: 1957-07-09
Abstract: 828,481. Vacuum work-holders. SHORT BROS. & HARLAND Ltd. July 7, 1958 [July 9, 1957], No. 21715/57. Class 60. [July 9, A method of converting the slotted workbeds 21 of machine tools into section beds comprises sealing off a length of a slot 22 in the workbed from its open ends and connecting the sealed-off length to suction means. The ends of the slots are closed by blocks 16, 23 of inverted T-section clamped in position in the slots by screws 16. Bonded to the outer faces of the blocks are cup-washers 17 which are of soft rubber or like flexible material and have flanges 17a extending substantially parallel but slightly proud of the blocks so that when a vacuum is connected by leads 19 passing through one or both of the blocks, the flanges are pressed against the side of the slot and a workpiece on the table 21 to act as seals. In an alternative embodiment, the block 10, Fig. 1, has end walls 10a, 10b of fairly thick hard rubber or synthetic resinous material joined together by struts 11. The side walls of the block are comparatively thin to enable the block to expand and engage the sides of the slot and workpiece when the inside of the block is connected by a pipe 12, in which is a spring-loaded valve 13, to a source of compressed air, vacuum being connected to a space between a pair of blocks by a conduit 20 passing through the block.