baber/WOPTO huggingface dataset:
Patent GB-1446071-A (GB)
Title: Furnaces for solid fuel
IPC: F23H13/08
Filed: 1973-04-17
Abstract: 1446071 Solid fuel furnace C O A EKMAN 17 April 1973 [17 April 1972] 18561/73 Heading F4B In a solid fuel fired furnace of the kind having an inlet shaft in which coal is degassed and which communicates with a main combustion chamber above a grate through a restricted opening below a wall of the shaft, a duct leads the gases from the lower part of the shaft to the combustion chamber, and the shaft wall nearest the combustion chamber is inclined downwards and outwards to allow the coal to swell. Coal is fed to a shaft 11 through a rotary feeder valve 63, and the coal passes down the shaft 11 below the lower edge of a rearwardly inclined wall 16 to the grate 13. A dead plate 12 extends rearwardly only as far as the upper edge 16b of the wall 16, and gases from the shaft 11 pass through ducts 40 to partition 20 in the ash pit for distribution below the grate. In normal operation, combustion air enters through front louvres 25, but for standby operation these louvres are closed and a normally closed flap 92 is opened to pass air directly to the combustion chamber. The flap 92 is held closed by a solenoid against spring pressure so that this flap is opened when the electricity supply fails. Ash from the forward part of the grate falls to a pit 77, and two pocketed rotary valves 72, Fig. 2, feed ash to a screw conveyer 26 below the rear part of the grate. The grate is formed of bars 27 with a slight rearward inclination and three abutments 28, 30, 29 to form two regions having gaps for the passage of air and gases through the grate. Alternate bars 27 are drawn forwardly by the action of lugs 43 on cam surfaces 44 at the end of each bar, all the bars being returned together by a bar 52 linking the two outermost grate bars. In a modification, alternate bars are linked to form two sets, each set having a cam surface at either side, the links between the bars of each set being such that both sets are returned to the rearmost position together.
Patent GB-1152567-A (GB)
Title: Device for Determining Optical Losses.
Inventor: BRANDLI HANSPETER
IPC: G01N21/59
Filed: 1968-04-19
Abstract: 1,152,567. Measuring optical losses photoelectrically. TURLABOR A.G. April 19, 1968, No.18575/68. Heading G1A. [Also in Division H1]  A laser oscillator is used for the determination of optical losses through a test object placed in the optical cavity. A helium-neon gas discharge tube 3 pumped by a current-stabilized supply unit 4 is disposed in optical cavity 1, 2 together with a control unit 9, the latter comprising two glass plates 10 pivotally mounted at 13 so that the angle α of the inclination of the plates 10 to the light path S can be altered simultaneously by micrometer 17 being moved axially. In order to determine the optical losses in object 7 i.e. a glass plate, the test object is removed from the optical cavity and glass plates 10 are adjusted so that the losses due to reflection from the plates are at a minimum i.e. angle α = angle α # , Brewster's angle, α #  being the angle of the ends 21 of the discharge tube 3. The test object 7 is introduced into the optical cavity and the intensity of the ray S 2  determined by photo-multiplier 5 and meter 6. The object 7 is again removed and the glass plates 10 adjusted so that the same reading as before is obtained on the meter 6. The optical loss in the test object then equals the difference in known reflection losses of glass plates 10 at the angle α o  and at the given angle determined from micrometer 17. In an alternative arrangement the pumping source 4 is adjusted after adjusting plates 10 for zero loss and moving the test object 7 into the light path so that the laser just oscillates at its threshold. The test object 7 is removed and plates 10 adjusted so that the laser again just produces an output 52, the reading of the micrometer again indicating the reflection losses in object 7. In this arrangement no photo-multiplier 5 and meter 6 are required. Other laser elements may be used and when such elements do not generate linearly polarized light a linear polarizer can be suitably disposed in the oscillator.
Patent GB-1192203-A (GB)
Title: Improvements in or relating to Fluid Operated Devices.
Inventor: STEPTOE BRIAN JOHN
IPC: F15C1/08
Filed: 1967-04-22
Abstract: 1,192,203. Fluidic switching devices. INTERNATIONAL COMPUTERS Ltd. 16 April, 1968 [22 April, 1967], No. 18613/67. Heading G4P. A fluid monostable switching device with an inlet passage 2, outlet passages 6, 7 and control passage 13 meeting in a chamber 5 is characterized in that one planar surface of the chamber has an interruption which may be in the form of a depression 16, which depression may comprise a step (21) deepening in the downstream direction (Fig. 5, not shown), or a projection (20) (Figs. 3, 6, not shown), the purpose of which is to substantially reduce the hysteresis effect so that the pressure at which a reducing control pressure signal allows switching back of an input power stream to its preferred outlet passage 6 is substantially the same as that required to cause switching to the outlet 7 in the first place. In a modification (Fig. 3, not shown), an additional control passage (18) is provided downstream of the passage 13. The fluid passages are recessed in a suitable material and covered with a face plate 15, there being appropriate channels through the material for connecting the input and control passages to fluid sources.
Patent GB-1073207-A (GB)
Title: Forming electrical connections
Inventor: HENTLEY EDWARD LEONARD
IPC: H01F6/06
Filed: 1966-04-28
Abstract: 1,073,207. Superconductors. MULLARD Ltd. April 28, 1966, No. 18669/66. Heading H1K. [Also in Division H2] To establish a persistent-current loop in a superconductive (cryogenic) circuit (Fig. 1), the coil or set of coils M are energized by an external source connected across terminals 1 while an auxiliary coil A is heated by a heater winding H in close proximity. When a desired current is flowing in the coils M, coil A is allowed to cool until it becomes superconducting then the supply to coils M is disconnected and the persistent current loop is thereby established. A flux pump FP is provided for fine control of the current and the connecting wires G are of niobium-zirconium alloy. The niobium-zirconium wires G are connected together at C by twisting them together, enclosing them in an envelope (P) (Fig. 2, not shown) and crimping the assembly. The envelope (P) may be of copper or silver and may either be in the form of a tube or a strip of foil wrapped around the twisted wires. A normal conductor such as J may be soldered to the outside of the envelope (P), and the assembly may be supported in a stainless-steel clamp (Fig. 4, not shown) attached to the apparatus.
Patent GB-613339-A (GB)
Title: Improvements in frames or structures including two connected pillars, posts or the like
IPC: A47C11/00
Filed: 1946-06-21
Abstract: 613,339. Leg frames. WELLINGTON TUBE WORKS, Ltd., and ROWAN, H. C. June 21, 1946. No. 18673. [Class 52 (ii)] [Also in Group I] A structure for use as a bench-end or gate frame (see Group I) consists of two tubular or other legs 1, connected together by two tubular or other cross members 3 which are splayed outwardly to each side of the plane containing the legs to provide an efficient anchorage for the bench top. The legs are of square section at their upper ends 4 to facilitate the welding of the cross members thereto, and an additional cross tube 7 may be provided intermediate their ends.
Patent GB-1008925-A (GB)
Title: Swivel mechanism for a caster and a method of forming the caster
Inventor: BLACK JOHN WILLIAM
IPC: H03K3/282
Filed: 1964-05-05
Abstract: 1,008,925. Castors. PEMCO WHEEL CO. May 5, 1964, No. 18721/64. Heading A4U. A castor comprises upper and lower ball bearing retainers 26, 38, spaced apart on opposite sides of the centrally apertured swivel plate portion 18 of the wheel fork 12 by integral abutting sleeve-like flanges 28, 42, a plurality of bearing balls 23, 36 disposed between the retainers 26, 38 on opposite sides of the swivel plate 18 and a swivel pin 33 having a central portion disposed within the sleeves 28, 42 and being provided at one end with a frustoconical flange 44 engaging a corresponding surface 39 on the lower retainer 38 and near the other end with an upper flange 63 which engages and retains the upper ball retainers 26. The upper flange 63 is formed on assembly (Fig. 4) by upsetting the upper part of the central portion of the swivel pin between upper and lower die members 56, 57 of a press, the upper member 56 slidingly receiving the threaded end 46 of the swivel pin 33 to engage a shoulder 47 on the pin and compress the pin material into a recess 29 in the upper retainer 26. The upper disc member 56 may be grooved on opposite sides of its central recess 59 whereby portions of the shoulder 47 will be undisturbed in the pressing operation to provide diametrically opposite keys which prevent rotation of the swivel pin 33 when engaged in keyways in an apertured mounting plate 67. The swivel pin 33 is secured to the mounting plate 67 by a nut 68 or alternatively (Fig. 8, not shown) by upsetting the unthreaded head of the pin over the mounting plate. The bearings are lubricated through a channel 52, 53 in the pin which is aligned with a groove 41 formed in one of the retaining ring sleeves 28, 42. Sealing rings may be provided between the swivel plate 17 and the outer edges of the ball retainers 26,38.
Patent GB-134366-A (GB)
Title: Improvements in Spring Mattresses.
Inventor: MARSHALL JOHN EDMUND
IPC: A47C27/07
Filed: 1918-11-15
Abstract: 134,366. Marshall, J. E. Nov. 15, 1918. Mattresses.-In a spring mattress composed of springs placed close together in straight longitudinal and transverse rows, the ends of the springs A are connected by coils B each disposed so as to form hinged joints between pairs of springs in the longitudinal rows a and the transverse rows b alternately, so that the mattress can be rolled up either longitudinally or transversely without bending the connecting-coils.
Patent GB-486173-A (GB)
Title: Improvements in or relating to fire extinguishing equipment
IPC: A62C99/00
Filed: 1937-07-06
Abstract: 486,173. Fire-extinguishing; storing gases under pressure. WALLACE, R. E., and WEST, A. C. F. July 6, 1937, No. 18755. [Class 47 (ii)] [Also in Group XXVIII] A closure for a pressure fluid container in fire-extinguishing equipment has a weakened portion adapted to be ruptured by torsional stress applied to the closure. As shown, a pipe 2 connected at one end to a gas cylinder is connected to the closure member 11. The latter comprises a bore 14, a weakening groove 15, and a reduced stem 16, and is secured in a bore 8 in a body member 3 which is formed with a passage 7 connected to a pipe 6 leading to nozzles or distributers. The stem 16 is keyed to a lever 19. A pulley wheel 20 freely rotatable on the member 3 has secured to it a cable 21 carrying a weight 22, and is held from rotation by an arm 25 normally locked by an electromagnetic catch 26. When the latter is released, the weight rotates the wheel, so that a lug 23 engages the lever 19 and so breaks off the closed end of the closure 11. This end is then forced, by the gas pressure, into a space 8<1> of the bore 8, and the gas is discharged to the pipe 6. A closure suitable for direct application to a gas cylinder, and permitting ready charging thereof, comprises a body member 27, Fig. 4, screwing at 28 into the neck of the cylinder and formed with a passage 29, a chamber 30, and a valve seat 31. A closure member 34, Fig. 8, has a bore 39, notches 35, a weakening groove 38, a reduced part 36, and a squared, reduced part 37, and is adapted to be screwed into the chamber 30 to engage and seal the seat 31. For charging the cylinder through the passage 32, the member 34 occupies the position shown in Fig. 4. After charging, it is screwed down on to the seat 31 by a tool 45, which has teeth to engage the notches 35. The tool 45 is then replaced by a tool having a squared bore to engage the part 37 of the closure. Rotation of this tool acts to rupture the closure at the groove 38, permitting escape of the gas. A safety seal is provided at 55.
Patent GB-664300-A (GB)
Title: Means for fixing and interconnecting curtain supporting tubing
IPC: A47H1/022
Filed: 1949-07-16
Abstract: 664,300. Curtain rods. CLAY, A., CLAY, A. T., and HOLMES, W. A. July 14, 1950. [July 16, 1949] No. 18766/49. Class 52 (v). [Also in Group XXV] Curtain rods for cubicles are connected by a knuckle jointed hinge which is connected by a pivoted link to a fixing plate. As shown, each rod is attached to a connector A, B or C each having a socket 1 the connector A having a projecting lug 2 and connector B having a pair of lugs 3 which embrace the lug 2 and connector C having two lugs 4 which engage the exteriors of the lugs 3. The lugs 2, 3, 4 are connected by a pivot pin 6 the head of which is pivotally jointed to a tubular link member 9 the other end of which is pivoted to the fixing plate 13.
Patent GB-1489788-A (GB)
Title: Inlet orifice device for controlling the throughput flow of fluid in a pressure regulator
IPC: F16K31/165
Filed: 1974-11-01
Abstract: 1489788 Valves SINGER CO 1 Nov 1974 [19 Dec 1973] 18828/77 Divided out of 1489787 Heading F2V The description is similar to that in parent Specification No. 1,489,787 but the claims relate to the inlet pressure-responsive flow regulator.
Patent GB-1171566-A (GB)
Title: Improvements in or relating to Data Transmission Apparatus
IPC: H04L29/08
Filed: 1968-04-22
Abstract: 1,171,566. Digital transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 22 April, 1968 [24 April, 1967], No. 18863/68. Heading H4P. Digital data is transmitted from one location to another location at a character rate compatible with the receiver, the rate being controlled in accordance with the address of the receiver. The data is sent at constant bit rate but variable character rate, spaces between characters being filled by non-significant signals. There is a plurality of transmitters and receivers at each location. The transmitter input data is fed to a register from which it is passed to a gating unit which pulses on detecting an address signal identifying a receiving location. This pulse enables a second gating circuit so that the next character fed to the register is examined. This character indicates the receiver to which the data is to be sent, and determines the rate of character transmission by a clock pulse unit which controls the transmission. The receiver within a receiving location may be changed during transmission to that location by transmitting an " escape " command followed by the address of new receiver, this address causing corresponding change in transmission rate. In a second embodiment, when the receiver has been selected it returns to the transmitter a signal indicating the required transmission rate. This signal is detected and controls the clock unit appropriately.
Patent GB-939399-A (GB)
Title: An installation for heating a medium passing through heater tubes
IPC: C10G9/20
Filed: 1962-05-16
Abstract: 939,399. Vertical steam boilers; liquid heaters. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 16, 1962 [May 18, 1961], No. 18896/62. Classes 64 (1) and 123 (2). In an installation for heating a medium, e.g. a liquid hydrocarbon, or water for steam generation, the medium is passed through vertical heater tubes located within a rectangular section heating chamber lined with the tubes and subdivided into a plurality of rectangular radiant heating sections by double rows of the tubes, each section being provided with at least one vertical burner and the tubes in each double row being arranged in back-to-back pairs and spaced so that the distance between the centre lines of paired tubes is approximately twice the distance between the centre line of a lining tube and the adjacent side wall. In the form shown, the heating chamber has side walls 1 lined with a refractory material 2. A single row of vertical heater tubes 3 is arranged near the refractory lining on each side wall and two sets of double row heater tubes 4, 5 and 4<SP>1</SP>, 5<SP>1</SP> are arranged within the heating chamber to divide it into sections 6 ... 9 provided with respective burners 10 ... 13 which may be situated at either the top or bottom of the heating chamber. Specification 882,745 is referred to.
Patent GB-112272-A (GB)
Title: Improvements in Bearings.
IPC: F16C17/06
Filed: 1917-12-20
Abstract: 112,272. Akt.-Ges. Brown, Boveri, et Cie. Dec. 20, 1916, [Convention date]. Thrust and cylindrical journal bearings ; yielding supports.-In a combined journal and thrust bearing, the thrust-bearing surfaces are placed at one or both ends of the journal bearing and are divided into a number of segments B supported by studs C. To equalize the pressure on the segments, the journal bearing A may be mounted in a spherical seating so as to be free to rotate as a whole, The segments B may be mounted on a series of balls, Fig. 6, which can yield locally to distribute the pressure.
Patent GB-1488732-A (GB)
Title: Integrated circuit devices and to their manufacture
IPC: H01L21/761
Filed: 1976-05-07
Abstract: 1488732 Semi-conductor device FERRANTI Ltd 7 March 1976 [31 May 1975] 18979/76 Divided out of 1488731 Heading H1K In an integrated circuit comprising a bipolar transistor a buried resistor 17 has a higher sheet resistivity value, typically 500 ohms per square, as compared to that of a buried collector region 12 of the transistor, the buried collector region 12 being buried at one portion of an interface between a first conductivity type substrate 11 and the same conductivity tape epitaxial layer 10, whereas the buried resistor being provided at another portion of the interface. Heavily doped N-type regions 18 provide electrical connections to the buried resistor. The buried regions are formed in two different processing steps involving diffusion and/or implantation. A collector insulation region 14 and the region 18 are provided in a single ionimplantation step, preferably followed by redistribution of the doped impurity or in two different diffusion steps.
Patent GB-974983-A (GB)
Title: New sulphonamides
IPC: C07D303/34
Filed: 1961-05-25
Abstract: The invention comprises compounds of the general formula <FORM:0974983/C1/1> (wherein R represents an unsubstituted amino group, an amino group mono- or di-substituted by a lower aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or arylaliphatic hydrocarbon group, an alkyleneimino group or an acylamino group, R1 represents a hydrogen atom, a lower alkyl group or an aryl group, R2 and R3 each represents a hydrogen atom or together represent an epoxy group and n represents 1 or 2) and physiologically tolerable alkali metal salts of those compounds which have at least one hydrogen atom at the sulphonamide nitrogen atom, their preparation by (a) in cases where R2 and R3 each represents a hydrogen atom-reacting a compound of the formula <FORM:0974983/C1/2> (wherein Hal represents a halogen atom) with a compound of the formula RH, (b) in cases where R2 and R3 each represents a hydrogen atom-hydrogenating in the presence of a catalyst a compound of the formula <FORM:0974983/C1/3> or (c) in cases where R2 and R3 together represent an epoxy group-epoxylating by reaction with monoperphthalic acid a compound of the formula <FORM:0974983/C1/4> optionally followed in each case (where appropriate) by N-alkylation or -acylation and/or salt formation, a mixture of isomers (if obtained) optionally being separated into its constituents at any stage, and pharmaceutical preparations containing a compound of the invention in admixture or conjunction with a carrier.  The term "lower" indicates that the groups concerned each contain not more than seven carbon atoms.  The sulphonyl halide starting materials are prepared by reacting cyclopentadiene or D 1,3-cyclohexadiene with an appropriate a :b -unsaturated organic sulphonyl halide (e.g. a fluoride or chloride), and hydrogenating the double bond in the product.  1,4-Endomethylene - cyclohexane -2- sulphonyl chloride is prepared from norbornene via norbornyl thioacetate or sodium norbornyl -2- sulphonate.  1,4-Endomethylene -D 5- cyclohexene -2- sulphonyl-dimethylamide and -diethylamide are prepared by reacting cyclopentadiene with vinylsulphonyl-dimethylamide or -diethylamide, respectively.  The compounds of the invention have an exciting effect on the central nervous system, and may be administered enterally, parenterally or locally in the form of pharmaceutical or veterinary preparations (e.g. tablets, dragees, powders, ointments, creams, suppositories, solutions, suspensions and emulsions) containing them in admixture or conjunction with a carrier, with or without other (unspecified) therapeutically active substances.  Specification 935,860 is referred to.
Patent GB-1302468-A (GB)
IPC: G01F1/22
Filed: 1971-06-04
Abstract: 1302468 Measuring fluid-flow SULZER BROS Ltd 4 June 1971 [18 June 1970] 19076/71 Heading G1R [Also in Division H1] In a fluid-flow indicating device in which an electrically conductive magnetizable float 3 movable in a duct 2 co-operates with electrical contacts 8 situated in the ducts, a nozzle 11 is provided to urge the floats away from the contacts as soon as the fluid flows through the nozzle. The bore 12 of the nozzle may be tapered, Fig.4 (not shown), and may have a cross-sectional area no more than 0À6 times that of the ducts. The nozzle is of a non-magnetizable material such as plastics or brass. An alarm device is operated through an electrical conductor 10.
Patent GB-1148247-A (GB)
Title: Process for the production of metadioxanes
IPC: C07D319/06
Filed: 1967-04-26
Abstract: 1,148,247. 1,3-Dioxanes. PERSTORP A.B. 26 April, 1967 [27 April, 1966], No. 19169/67. Heading C2C. Metadioxanes are prepared by reacting a ketone or an aldehyde having an activated methylene group with formaldehyde or an oligomer of formaldehyde in the presence of a Lewis acid catalyst. Aldehydes or ketones which may be used are represented by the formula wherein R B  is hydrogen, an alkyl, aryl, or heterocyclic group and R A  is hydrogen, an alkyl, aryl, acyl, alkoxycarbonyl or heterocyclic group, or R A  and R B  together with the carbonyl group adjacent to R B  may form part of a ring.
Patent GB-1271471-A (GB)
Title: Boot trees
IPC: A43D3/14
Filed: 1970-04-22
Abstract: 1,271,471. Boot tree. L'ACCESSOIRE PARISIEN S.A.R.L. 22 April, 1970 [23 Oct., 1969], No. 19229/70. Heading A3B. A boot tree consists of a pair of members E 1 , E 2  which bear against the inner face of the boot upper and which are forced apart to stretch the upper by a pair of stay tubes R 1 , R 2  made of resilient material and containing a gas. Preferably the members E 1 , E 2  are hollow and are interconnected by the tubes R 1 , R 2 , the boot-tree being made in one piece from plastics material by a blow moulding operation. The walls of the tubes R 1 , R 2  may consist of moulded rings or a screw form as shown and the gas may be air atmospheric or higher pressure. A pulling tab T may be provided on the upper tube R 1  to enable the tree to be easily pulled out of the boot.