baber/WOPTO huggingface dataset:
Patent GB-1191709-A (GB)
Title: Improvements in and relating to Glasshouses and other Glass Roofed Buildings
Inventor: MINETT JAMES ERNEST
IPC: A01G9/14
Filed: 1967-09-22
Abstract: 1,191,709. Glazing roofs and walls of glasshouses &c. ALUMIN CONSTRUCTION & ENG. Ltd. 20 Sept., 1968 [22 Sept., 1967; 19 Feb., 1968], Nos. 43358/67 and 7988/68. Heading E1R. A roof or wall structure of the kind com- "prising a plurality of sheets or 'panes of glass &c. which overlap at their upper and lower edges and are supported on aluminium alloy glazing bars 7, 8, 9, 10, 12 has the opposite side edges of the panes 1 supported by frame members 20 detachably mounted in endwise abutting relationship on the inverted T-shaped galzing bars 7, 8, 9, 10, 12, each frame member 20 including an upper channel section portion 21 receiving one side of the pane 1 and a lower longitudinally tapering glazing bar-engaging portion 18 (Fig. 5), maintained in the glazing bar channel 17 formed by ribs 16 by spring clips 19 having the end of one arm disposed 'under a lip 15 on web 10 of the glazing bar and the free end of the other arm 19 pressing on the top of the frame member 20, the said upper and dower portions being so dimensioned that when the frame members are placed end to end on the glazing bar, the overlapping portions of the panes &c. are minimally spaced from each other and from the adjacent lower and upper ends of the frame members.
Patent GB-622549-A (GB)
Title: An improved coupler for scaffold tubes
IPC: E04G7/18
Filed: 1947-03-24
Abstract: 622,549. Scaffold clamps. SCAFFOLDING (GREAT BRITAIN), Ltd., BARTON, P. C., and BENNETT, W. T. March 24, 1947, No. 8001. [Class 20(ii)] In a scaffold clamp of the type which incorporates a U-shaped band to receive the scaffolding members to be coupled and a screw for clamping them together against part of the band the tightening operation is in two stages, first the rotation of a cam 14 housed in a recess 102 in the band 10 so that when turned its lobe bears against one of the scaffolding members 11, and second the tightening of a clamping screw 13 threaded through the cam, the scaffolding members being tightened together against hook-like parts 100, 101 of the arms of the band 10. The end of the screw 13 serves as a handle to rotate the cam, the limits of the movement of which are set by a slot 15 in the recess 102 so that the cam, when in the clamping position, is just beyond the dead centre of the line of thrust. The clamping screw and cam may be mounted in a bridge plate spanning the ends of the limbs of the U-shaped band and suitably bored and slotted.
Patent GB-477083-A (GB)
Title: Improvements in or relating to the desulphurization of pig iron
IPC: C21C1/02
Filed: 1936-03-18
Abstract: Pig iron is produced in a coke blast furnace and the molten iron is treated under strict reducing conditions in a desulphurizing vessel, free from substantial additions of oxidizing substances and without substantial application of heat, with a basic desulphurizing slag containing not more than 55 per cent of lime, and silica and fluorspar in a total amount of 25 per cent or more, the remainder of the slag if any, (in addition to sulphur compounds, being basic such as alumina or soda, the treatment being carried out in the presence of carbon and a reducing atmosphere containing carbon monoxide and at a temperature of 1400 DEG  C. or below.  The slag is separated from the pig iron after treatment and revivified outside the desulphurizing vessel, the slag then being suitable for further desulphurizing of additional quantities of pig iron.  The desulphurizing vessel may be lined with carbon or carbon may be introduced into the slag, and the reducing atmosphere may be under superatmospheric pressure.  In an example, a slag contains 30-55 per cent of lime, 20-50 of fluorspar and 5-25 of silica to which 5 of alumina may be added, and may contain other alkaline earth oxides such as barium or strontium oxide.  Other reducing agents besides carbon, such as calcium carbide, ferro-silicon or other ferro-alloys such as ferro-manganese may be added to the slag. The reducing atmosphere may consist of carbon monoxide or a mixture of carbon monoxide, carbon dioxide and nitrogen, the proportion of carbon monoxide being large compared with that of the carbon dioxide.  The desulphurizing vessel consists of a ladle lined with carbon and mounted on wheels, which run on rails and provided with means for rocking and agitating charge.  The charging opening of the ladle, after the pig iron charge has been run in, is tightly closed by a cover, and carbon monoxide or a gas containing the latter is introduced into the space above the slag. The ladle may also be provided with electrodes for the purpose of heating the charge if the temperature of the latter is too low. The slag removed after treatment may be revivified by treating with water and carbon dioxide, or with an oxidizing gas or by maintaining it in contact with a molten matte-forming metal such as copper.  The revivified slag may be dried and calcined and then charged into the ladle at an elevated temperature.  The pig iron may be treated with slags of progressively decreasing sulphur content, each slag being revivified when its sulphur content becomes too high to prevent efficient desulphurization.
Patent GB-1092533-A (GB)
Title: Improvements relating to pump casings
Inventor: CAMAC GEORGE
IPC: F04D29/22
Filed: 1964-02-27
Abstract: 1,092,533. Mechanical seals. SPEEDWELL RESEARCH Ltd. Feb, 16, 1965 [Feb. 27, 1964], No. 8186/64. Heading F2B. [Also in Group F1] In a centrifugal pump (see Division F1) the shaft seal is substantially the same as the one described in Specification 1,062,946 except that the rubber sealing ring of U-shaped crosssection encloses a coil spring which forces the walls of the sealing ring against the graphite ring and the pump shaft.
Patent GB-535926-A (GB)
Title: Improvement in mounting for panels
IPC: E06B3/62
Filed: 1940-05-07
Abstract: 535,926. Glazing window frames. HUNTER SASH CO.. Inc. May 7, 1940, No. 8187. Convention date, June 8, 1939. [Class 20 (iii)] A pane 1 is held, in a frame 3 against a backing 4 by a rubber strip 2 having a head 9 which is compresed between the pane and a rim 20 of the frame, the strip being secured by making its lower part wider than the frame recess or by providing it with one or more projections 15 to engage in grooves in a side of the recess. The backing 4, of rubber or felt, engages with a shoulder 6 on the frame and with a rim 8.
Patent GB-866853-A (GB)
Title: Improvements in or relating to centrifugal dryers
IPC: B04B3/04
Filed: 1959-03-10
Abstract: 866,853. Centrifugal strainer separators. CONSTRUCTIONS GUINARD. March 10, 1959 [March 14, 1958], No. 8208/59. Class 46. [Also in Group XIII] In a centrifuge for separating solid particles from a liquid in which they are held in suspension, a zone or zones is/are provided in which the particles are made to pass through sheet-like ejections of washing liquid. As shown, a centrifuge comprised a rotatable frusto-conical member 3, 4, Fig. 1, having two series of helical ribs 6, 7, an apertured basket 1 disposed around said member and rotatable in the same direction but at a different speed, and an annular gutter member 9 clamped between the frustum parts 3, 4 from which washing liquid is adapted to discharge into the annular zone between the ribs 6, 7. The liquid is supplied from a central source through borings 16 to an annular chamber 15, whence it is flung outwardly through radial borings 20 on the underside of a part 10 of the member 9 to a space 23 before issuing as a horizontal sheet 24. In a modified machine two sheets 34, 35, Fig. 2, of washing liquid issue from a gutter member 25. In a centrifuge having three series of vertically spaced ribs and, therefore, two zones, washing liquid, supplied from a common source within the frusto-conical member, issues from a member such as 25 located in each zone.
Patent GB-418435-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: C09B3/00
Filed: 1933-03-17
Abstract: 418,435. Valve amplifying circuits; thermionic valves. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. March 17, 1933, Nos. 8213, 8214, 8215, and 8216. Convention dates, March 18, 1932, Oct. 27, 1932, Oct. 29, 1932, and Oct. 31, 1932. [Classes 39 (i) and 40 (v).] In an amplifier for use in multiplex or other telegraph or telephone systems, distortion due to curvature of the anode-current, grid-voltage characteristic or to iron-cored coils or other causes is counteracted by equal and opposite distortion due to negative gradient of the characteristic connecting the amplification factor Á with the grid volts Vg ; i.e. by employing such conditions that dÁ-<1>/d(-Vg) is negative. For a very limited range of conditions this result can be achieved with known valves ; but preferably "countercontrol" valves, which exhibit the peculiarity in question over an extended range of conditions, are employed. The range of variation of external load over which compensation is attainable is limited, but can be extended by combination with reaction circuits in which the anode circuit of the counter-control valve is coupled to the grid circuit by a resistance inside or outside the valve and in series with the load (Figs. 12, 15, not shown), or a tapped resistance in shunt therewith (Fig. 13, not shown), or a transformer in the output circuit connected to a differential transformer in the input circuit (Fig. 15, not shown). Thermionic valves. In order that dÁ/dVg, and therefore dÁ-<1>/d(-Vg), may be negative over an extended range of conditions, the cathode is located between the anode and the control electrode, which may be a plate or cylinder while the cathode is a flat or spiral wire, (Figs. 3, 4, not shown). The control electrode G, Fig. 6 may be corrugated in relation to the grid-like cathode K, to secure a large measure of the effect described and to secure at the same time a high mutual conductance. In a further modification the control electrode G, Fig. 10, is a cylinder embedded in insulation J. Inside the insulation is a heating-coil H and outside it is a spiral tape of emissive material forming the cathode K, the whole being surrounded by the cylindrical anode A. The result aimed at may be enhanced by the addition of a suitable screening-grid. The heater and control electrode may be enclosed in insulating material which has an emissive layer on its surface to act as cathode.
Patent GB-122111-A (GB)
Title: Improvements in Castors.
Inventor: COHEN ALEXANDER
IPC: B60B33/00
Filed: 1918-05-16
Abstract: 122,111. Cohen, A. May 16, 1918. Castors. - A castor comprises a pivot B projecting from a bearing plate and engaging the hub F of the castor horn H. The bearing plate has a central spherical portion C, an off-set portion E, and a flat but downwardly inclined outer ring D, and the hub and outer portion of the castor horn are formed to correspond.
Patent GB-790174-A (GB)
Title: Improvements relating to lifting cradles
IPC: B66C1/64
Filed: 1956-03-16
Abstract: 790,174. Slings for hoisting loads. MOYMASCHINEN-ANSTALT. March 16, 1956 [March 16, 1955], No. 8245/56. Class 78 (4). A lifting cradle comprises runners 12, Fig. 1, for passing e.g. under a stack of sawn timber, and suspended from ropes 1 ... 4, separated by spreaders 6, 9, through securing devices 10 which include means for preventing relative movement between the securing devices 10 and the runners 12. Each device 10 may comprise a member formed with a T-section cut-out 11, Fig. 2, for engaging over an I-section runner 12 to which it is secured by a U-section member 17 pivoted at 19 to the member 10 and biased by its own weight and by a spring 22 so that a nose 16 engages a hole 15 in the web 14 of the runner. In an alternative construction (Fig. 3, not shown), the member 17 engages a notch in an angle iron secured on one side of the web 14. Each securing device 10, Fig. 1, may alternatively comprise a pair of jaws 26, 27, Fig. 4, pivoted together at 28 and connected by a toggle linkage 31, 35 which is shown in an over-centre position so that the jaws 26, 27 can only be separated for disengagement from the runner 12 by pulling a handle 34. Sliding movement of the jaws 26, 27 relatively to the runner 12 is prevented by an end plate 39 welded to the end of each runner and a stop 40 welded to the flanges or to the web of the runner 12. The jaw 27 is shown as formed by two spaced plates 27<SP>1</SP>, 27<SP>11</SP> between which the jaw 26 and the toggle linkage 31, 35 are embraced. Each runner 12 may be reinforced by a tight loop of wire rope (Fig. 3, not shown) passing through holes in opposite ends of the web near the neutral plane; the rope also serves to support the load if the runner breaks.
Patent GB-505941-A (GB)
Title: Improvements in or relating to devices for filling and emptying cartridge belts
IPC: F42B39/10
Filed: 1938-03-17
Abstract: 505,941. Loading and unloading cartridge belts. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. March 17, 1938, No. 8273. Convention date, March 18, 1937. [Class 92 (ii)] Relates to machines for filling and emptying cartridge belts of the kind having a cartridge hopper 30, a displaceable pusher 14 for the cartridges operated by a rotary crank pin 8 and actuating the belt feed drum 20; and a shaking device 36 for the cartridges in the hopper. According to the invention, the cartridges in the hopper, above those fed by the pusher, are retained by a device 46 movable transversely to the pushing direction under the control of the pushed-out cartridges. In the form shown, the pin 8 of the crank handle 5 engages a slot 11 in member carrying pushers 14, 14<1> for two cartridges, the member rotating the drumfeed shaft 17 by a pin lo engaging a groove 16. The retainer 46 hinged at 45 is rocked.when the cartridges are pushed out and its rear bifurcated arms rise to support the next two cartridges in the hopper until the pushers 14, 14<1> have returned. The spring-controlled arms 34, 35 of the shaker are moved apart by a wedge 13<1> on the slide 10. For unloading belt, the stroke of the pushers islengthened by engaging the pin 8 in a groove 12 after operating a catch 63 to open the bridge 10<1>, this being only possible when the slide occupies a position such that the arm 67 of the catch can engage a recess 68 in the shaft 17.
Patent GB-1428653-A (GB)
Title: Fracture fixing device
IPC: A61B17/72
Filed: 1972-02-23
Abstract: 1428653 Fracture fixing device NATIONAL RESEARCH DEVELOPMENT CORP 19 Feb 1973 [23 Feb 1972] 8350/72 Heading A5R A fracture fixing device comprises an elongated intramedullary member 1 and a separable cap 3 recessed to receive one end of said member and adapted for securement to bone. As shown in Fig. 1, the member comprises a cylindrical rod 1 with an enlarged head 2 having a rounded end which is inserted along the medullary canal of a bone through an incision made in one end. The rod is then cut off level with the incision. The cap comprises an externally-threaded sleeve 4 of which the internal diameter is a sliding fit on the rod I and the outer diameter, apart from the thread, is not greater than that of the head 2. The cap is closed by a head of larger diameter than the sleeve. To secure the fracture, the bone incision is tapped to receive the cap which is then screwed in so that the rod I is received within the sleeve 4. When the fracture has united, the device can be removed. In a modification (Fig. 3 not shown), a major portion of the rod is of the same diameter as the head 2 in Fig. 1, but the other end is of reduced diameter for insertion into the sleeve 4.
Patent GB-374539-A (GB)
Title: Improvements in and relating to speed regulators
IPC: H02P7/06
Filed: 1931-03-18
Abstract: 374,539. Speed governors. INTERNATIONAL GENERAL ELECTRIC CO., 120, Broadway, New York, U.S.A.-[Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 18, 1931, No. 8356. Convention date, March 19, 1930. [Class 57.] In a centrifugal governor of the type wherein a contact carried by a member 15 opens and closes at each revolution under the combined influence of spring, gravity and centrifugal force, the loading is supplemented by an electromagnet 18 the force of attraction being varied upon the motor 1 getting out of phase with a master clock. A pointer 5 carried by a shaft geared with the motor 1 acts in conjunction with pointers 8 carried by the clock spindle 7. Out of phase movement of the pointers causes current to flow to a reversible motor 12 to vary the resistance 13 in the circuit of the electromagnet. The governor contacts short circuit a resistance in the motor field.
Patent GB-970889-A (GB)
Title: Roller wiping device
IPC: C23C2/22
Filed: 1962-03-05
Abstract: <PICT:0970889/C6-C7/1> A device for removing excess liquid metal from the working rollers 1, 2 during the coating of steel sheet and strip, e.g. tinning, consists of wiper bars pressed against the rollers by fluid pressure, and comprising a removable wiping insert 8 carried in a slot mounted in rib 7 mounted on a cross-bar 6.  The wiping insert is of D.T.F.E., and the whole assembly is mounted in the bearings of the rollers, whereby the casing of the bearing forms a guide in which the cross-bar 6 can slide.  Uniform fluid pressure is applied to a space 15, using a vegetable oil or gas circulated by a pump.  The rollers 2 are movable radially to accommodate coated sheets of different thickness.
Patent GB-708099-A (GB)
Title: Improvements in lubricating systems for gear-boxes
IPC: F01M11/06
Filed: 1952-04-02
Abstract: 708,099. Lubricating. AIR-EQUIPEMENT April 2, 1952 [April 6, 1951], No. 8456/52. Class 12(3) A lubricating system, for use in a gearbox for accessories on aircraft, is intended to ensure lubrication when the aircraft is in inverted flight, and comprises a lubricating pump fed from an oil tank in the upper part of the gearbox casing, the tank being normally supplied with oil by a drainage pump which takes the oil from the bottom of the casing, the arrangement being such that in the inverted flight position the tank is fed by gravity while the drainage pump runs idly, the intake of the lubricating pump always remaining submerged in the oil in the tank whatever may be the position of the gearbox. As shown, the drainage pump 22b, Fig. 2, withdraws oil through a passage 23 from the bottom of the casing 1 and supplies it through a passage 24 to the bottom of a tank 2. An opening 3 provides communication between the top of the tank and the inside of the casing. The lubricating pump 22a, Fig. 3, withdraws oil from the tank 2 through an outlet 25 and supplies it through pipes 26, 27 to points to be lubricated. Excess lubricant passes by a valve 28 to a pipe 29 opening into the bottom of the tank 2. The outlet 25 remains submerged when the aircraft is inverted so that the pump 22a can still function.
Patent GB-858148-A (GB)
Title: Improvements relating to hydroforming
Inventor: PORTER FREDERICK WILLIAM BERTR
IPC: C10G59/02
Filed: 1958-03-18
Abstract: A naphtha or gasoline is upgraded by contacting with hydrogen in a first stage with a platinum reforming catalyst to give a product of increased octane member under conditions such that catalyst regeneration is not required (i.e. a catalyst life of at least 40 barrels of feed processed per pound of catalyst) and contacting the product with hydrogen and a platinum catalyst in an amount of 25%-75% by volume of that used in the first stage under conditions such that catalyst regeneration is required to give a product of still further increased octane number.  The first stage may use two or more reactors, the temperature in the last reactor being slightly higher, preferably three reactors are used, the last containing as much catalyst as the first two together. Conditions of 900 DEG -975 DEG C., 300-500 p.s.i.g., 0,5-2 vol./vol./hr. and hydrogen to hydrocarbon molar ratio of 6-12 : 1 may be used and the catalyst may contain a halogen.  The product from this stage preferably has a research octane member (clear) of 85-95.  The second stage may use two reactors in parallel or a fluidised catalyst for ease in regeneration.  The catalyst may contain 0,5-1,5% platinum on etaalumina and 0,5 lb. of platinum per cubic foot of reactor and is preferably halogen free. The conditions may be 975 DEG F.-1,025 DEG F. using the same pressure and hydrogen to hydrocarbon ratio as in the first stage, the space velocity being higher due to the smaller amount of catalyst.  The hydrogen recycle may be overall or separate in the two stages; in the latter case excess hydrogen from the first stage may be added to the second.  The product preferably has a Research octane number (clear) above 100 and a volatility of 40-60 volume per cent. recovered at 100 DEG C.
Patent GB-657889-A (GB)
Title: Improvements in roof structures
IPC: E04B7/02
Filed: 1949-03-30
Abstract: 657,889. Roofs and ceilings. BERGMAN, G. H., and ARGARDEN, C. G. March 30, 1949, No. 8644. Convention date, March 31, 1948. [Class 20(iv)] A roof structure comprises a ceiling and an inclined roof formed from a number of sections each comprising sheets 6, of compressed fibrous wood, plywood or sheet metal, having inwardly directed battens or beams 1, 2, the battens of the sheets of the roof being connected to those of the ceiling by struts 3, 4 in tension and compression respectively. The framework may be completed by a collar-beam 5, transverse battens 7, 8 and diagonal bonds 9. The strutting 3, 4 may be formed as a unit, Fig. 3. with mounting members 11, 12.
Patent GB-584379-A (GB)
Title: Improvements in or relating to tubular containers for electrical condensers or otherapparatus
IPC: H01G2/10
Filed: 1944-05-08
Abstract: 584,379. Container closures. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. May 8, 1944, No. 8678. [Class 125 (iii)] [Also in Group XXXVI] A tubular container 3 for an. electrical condenser &c. 1 is closed at its open end or ends by inserting a resilient bung 5 of neoprene &c. and spinning over the edge to bear on and compress the bung, as at 6, to provide an air-tight seal. The degree of insertion of each bung is determined by the width of a strip of wrapping 2. Specifications 479,303 and 583,997, [both in Group XXXVI], are referred to.
Patent GB-647666-A (GB)
Title: Improvements in liquid packaging machines
Inventor: KAYAT ELIAS
IPC: B65B57/08
Filed: 1948-03-24
Abstract: 647,666. Reciprocating-pumps. PERGA CONTAINERS. Ltd. March 24, 1948, No. 8685. [Class 102(i)] '[Also in Groups XVII and XXX] Apparatus for delivering measured quantities of liquid from a tank 120 to cartons which are advanced step-by-step beneath filling-nozzles 133, comprises two measuring-cylinders 121 in which work pistons 145 the strokes of which are synchronized with the rotary movements of a pair of valves 134, whereby on the inward strokes of the pistons measured quantities of liquid are drawn into the cylinders through pipes 144 and on the return strokes are discharged through the nozzles. The piston rods 146 are interconnected by a yoke member which is mounted on a slide,147 and coupled by a link 164 to a lever 154 formed with a slot 155 for the reception of a slide block 153 pivoted on a pin 152, the lower end of the lever being pivoted to an arm 156 mounted at its lower end on a fixed pivot 157. The pivot pin 162 interconnecting the lever and arm carries a roller engaging a cam groove 160 in one face of a cam 159 mounted on a drive shaft 9 which also operates the carton-feeding mechanism. The pin 152 is carried by a block 151 which is adjustable in a vertical slot 150 to vary the stroke of the piston and hence the quantity of liquid measured. The valves 134 are interconnected by movement in unison and are oscillated through 90 degrees by linkage operated by a lever arm 174 mounted on a shaft 171 carrying a lever arm 172 on which is mounted a roller 173 engaging a groove 161 in the opposite face of the cam 159.