baber/WOPTO huggingface dataset:
Patent GB-212601-A (GB)
Title: Improvements relating to electric motor starters
IPC: H02K17/30
Filed: 1922-11-08
Abstract: 212,601. Hirst, J. A., and Brook, Hirst, & Co., Ltd. Nov. 8, 1922. Controllers with overload relense.-In a motor starter operated by an intermittently advancing shaft and ratchet or like handle gear, and provided with overload release control, the sensitiveness of the overload device, during the starting period, is reduced by means mechanically connected to the shaft, which is arranged so that the condition of reduced sensitiveness cannot persist if the handle is prematurely released. A slight further movement beyond the full running position of the shaft is required in order that the apparatus can be left in the condition of normal sensitiveness. The reduction of sensitiveness may be brought about, as shown in Fig. 1A, by applying the force of a spring s<3> to assist in holding down the core o<20> of an overload magnet o, the spring pressure being taken off when a cam W attached to the starting handle gear reaches its final position. In an alternative construction, Fig. 1c, the core of the. overload magnet is lowered while the cam W is passing through the starting positions and is raised again when the cam reaches the final position. In order to ,prevent the mechanism from being accidentally left in the condition of reduced sensitiveness, the release of the starting handle before it has reached its final position effects the tripping open of a main circuit breaker which cannot be reset except by returning the handle to its initial position, the mechanism being similar to that described in Specification 207,232. Specification 166,084 is referred to in one of the Provisional Specifications.
Patent GB-312567-A (GB)
Title: Improvements in hose supporters
IPC: A41F11/12
Filed: 1928-10-22
Abstract: 312,567. Roth, I., and Benjamin & Johnes. Oct. 22, 1928. Stocking suspenders.-A suspender strap depending from corsets or the like and supporting the stockings presents no buckle or adjusting means at the front. A broad strap 4 at the front is attached at its upper end to a wire loop 3 and passes through a loop 12. Its end 6 is attached to a narrower strap 7 which in turn passes through a loop 8, which is attached to the end 5 of the broad strap. The end 9 of the strap 7 passes round the central bar of a friction slide 10. The slide and narrow strap are completely masked by the outer strap 4.
Patent GB-851775-A (GB)
Title: Improvements in or relating to steam boilers, particularly for locomotives
IPC: F28F19/04
Filed: 1958-09-25
Abstract: 851,775. Preventing corrosion. SALMEN, H. Sept. 25, 1958 [Oct. 16, 1957], No. 30620/58. Class 123(1) The steam or water side of the fire-tubes 3 and fire-box 2 of a locomotive boiler 1 are provided with an anti-corrosion coating of thermo-setting synthetic material 6. The coating is applied, by dipping or spraying after the metal has been cleaned, to a thickness up to, but not exceeding, 200 microns. The fire-tubes 3 are expanded into tube plates which may also be coated in a similar way. A suitable coating consists of plastified hardenable phenolic resins dissolved in alcohol optionally containing additions of silicones compatible with the phenolic resins and pigments with, or replaceable by, thiseotropic agents.
Patent GB-1371579-A (GB)
Title: Switching circuit for solenoid valves
IPC: F02D41/20
Filed: 1972-06-30
Abstract: 1371579 Solenoid energizing circuits ROBERT BOSCH GmbH 30 June 1972 [1 July 1971] 30657/72 Heading H3T [Also in Division F1] A circuit for rapidly operating and holding a solenoid valve comprises a feed-back arrangement responsive to the voltage across the solenoid for maintaining the voltage constant during build-up of current and a further feedback arrangement responsive to the attainment of a given current to reduce the current to the minimum holding value. In Fig. 2, rendering transistor 12 conducting causes transistors 21 and 22 to conduct and operates solenoid valve 70. When the voltage across the solenoid reaches the maximum allowable value a Zener diode 32 conducts to render conducting a transistor 33 connected to the input of transistors 21 and 22 so as to maintain the voltage across the solenoid constant. The current rises until the voltage across resistor 41 applied to a comparator 51- 56 exceeds the reference voltage across 53 and 55 whereupon the control exercised by transistor 56 on transistor 33 reduces the current to a minimum holding level, transistor 61 being cross-coupled with transistor 56 to assist holding at this level. Diodes 31 and 55 provide temperature compensation and, during the switchoff, the back E.M.F. of the coil is dissipated in transistor 22 and resistor 41. Diodes 26 and 44 serving to protect the rest of the circuit.
Patent GB-159353-A (GB)
Title: Improved means for fastening stair rods
IPC: A47G27/06
Filed: 1919-12-08
Abstract: 159,353. Hudson, W. A. Dec. 8, 1919. Stair-rod fastenings. - A stair-rod fastening comprises a bracket 1 carrying two spring jaws 4, 5 of identical form, bent inwards towards one another. Each spring jaw may terminate in a roll, and the bracket may be provided with an end plate 7. The fastening is particularly applicable to stair-rods of triangular section.
Patent GB-1073069-A (GB)
Title: Process for producing a superconductor
IPC: H01B3/30
Filed: 1965-07-19
Abstract: A superconductor, e.g. a cryotron, is formed by vapour depositing a metal film of e.g. tin on a substrate of e.g. glass, removing parts of the film, forming an insulating film over some of the remaining metal, cleaning the exposed metal by a glow discharge in argon, nitrogen, hydrogen or steam, and then vapour depositing a further layer of metal e.g. lead without breaking the vacuum. Parts of both metal films may be removed by a photo-resist-etch process. Alternatively tin may be deposited on lead.
Patent GB-933698-A (GB)
Title: Purification of alcohols
IPC: C07F5/06
Filed: 1961-08-25
Abstract: Higher alkanols, which may be obtained as a residue after distillation of the lower alkanols in a process wherein an alkyl aluminium has been allowed to react with a low molecular weight olefin, the growth product has been oxidised and subsequently hydrolysed, are purified and separated from accompanying aldehydes, esters, olefins and paraffins by reaction of the residue with a low molecular weight, preferably C1 to C5, trialkyl aluminium or a low molecular weight, preferably C1 to C5, aluminium alkoxide, such that the resulting paraffin or alkanol may be readily distilled off and the higher alkanols thereby converted to substantially non-volatile aluminium alkoxides which are then hydrolysed to recover the alkanols.  The removal of the impurities from the substantially non-volatile aluminium alkoxides is preferably effected at 100-200 DEG C. below 20 microns mercury pressure.  Aluminium isopropoxide and triethyl aluminium are preferred reactants; although C1-C5 are preferred, C5 to less than C20 may be employed.  Examples also include aluminium ethoxide, n-butoxide, triisopropyl aluminium and tri-n-pentylaluminium.  The reaction of the alkyl or alkoxide with the higher alkanol preferably employs stoichiometric or excess of reactants at optionally 0-150 DEG C.; when using a lower aluminium alkoxide as reagent it is preferable to remove the lower alkanol continuously as it is formed.  Specification 804,335 is referred to.
Patent GB-1075242-A (GB)
Title: A method of and apparatus for moulding a pattern on the periphery of a ring
IPC: B29C37/00
Filed: 1964-08-04
Abstract: 1,075,242. Tyre moulding. PIRELLI S.p.A. Aug. 4, 1964 [July 27, 1963], No. 30735/64. Heading B5A. In apparatus for moulding and vulcanizing tread rings the ring is located on an expandable core 25 which is then brought into a segmented mould 14 movable into ring 20 and covered by a cover 80. The segments of the core are connected by links to piston actuated reciprocable member 45 and the segments of the mould are carried by a plate 13 mounted on a reciprocable cylinder 4. Interengaging inclined surfaces on the mould segments and ring member 20 effect radially inward movements of said segments. The cover 80 is opened and closed by a reversible motor 99 which drives gears 85 having eccentric pins 84 to which are connected levers 83 which extend from a beam 81 to which the lid is fastened. The cover 80 carries the top mould closure member and with the housing 2 defines the fluid chamber to which heated fluid is supplied to effect vulcanization.
Patent GB-227591-A (GB)
Title: Improvements in and relating to pens and enclosures for cattle
IPC: A01K3/00
Filed: 1923-12-06
Abstract: 227,591. Willis, P. R. J., (Wieler, J.). Dec. 6, 1923. No Patent granted (Sealing fee not paid). Gates and gate posts; handles; rail and verticalbar fencing.-A pen or enclosure for cattle comprises a centrally disposed enclosure having a main entrance and gateways leading to enclosed and separate parts of the pen. The pen may consist of four contiguous enclosures separated by partitions 23 and a small central enclosure 2 separated from the main enclosures by four gates 3, 4 on four posts 1. One or all of the gates may be made to swing both inwards and outwards. For this purpose both ends of a gate may be provided with downwardly projecting hinge-pins 12, Fig. 2, to enter sockets or openings in lugs 13 on the posts. The parts of the pen may be made detachable by providing the posts with lugs between which hurdles can be secured by pins passing through the lugs and through projections from the ends of the hurdles. The hurdles may be replaced by bars having hooks at their ends to engage the lugs on the posts, and the posts may be connected at both ends by detachable bars.
Patent GB-1139875-A (GB)
Title: Horizontal-type vacuum film evaporator for highly viscous solutions
IPC: B01D1/22
Filed: 1967-07-04
Abstract: 1,139,875. Evaporators, film-type. SUMITOMO CHEMICAL CO. Ltd. 4 July, 1967 [5 July, 1966], No. 30794/67. Heading B1B. A viscous liquid is concentrated in a film evaporator comprising horizontal drum 1 surrounded heating jacket 3; the liquid is introduced through inlet 2 and is distributed as a film on the hot inner wall of the drum by rotating vanes 4, the concentrated liquid being discharged from the drum into a wider section 5 which converges downwardly to a discharge port 6, and is provided with a warming jacket 7. The vapour flows on into section 9 which has an upper discharge port 12 surrounded by cooling jacket 11 so that part of the vapour condenses thereby removing entrained mist of concentrate from the vapour leaving port 12. This remaining vapour is condensed in an external condenser. The condensate in section 9 is discharged through port 10. Suitable heat-exchange media are circulated independently through jackets 3, 7 and 11. The evaporator may be operated under vacuum.
Patent GB-1243878-A (GB)
Title: Production of the temperature-stable iron-manganese oxide black pigment
Inventor: HOLZNAGEL WILHELM
IPC: C09C1/24
Filed: 1969-06-18
Abstract: 1,243,878. Black iron oxide-manganese oxide pigments. FARBENFABRIKEN BAYER A.G. 18 June, 1969 [26 June, 1968], No. 30816/69. Heading C4A. Black pigments consisting of mixed oxides of iron and manganese are obtained by intimately mixing finely-divided iron and manganese oxides or precursors thereof in a weight ratio of 25-90 parts Mn 2 O 3  to, correspondingly, 75-10 parts Fe 2 O 3 , optionally in the presence of a mineralizer, and calcining the mixture at 800-920‹ C. in an atmosphere containing 7-20% by vol. oxygen. The first calcination may be followed by a second at 800-700‹ C. The mineralizer may be a boron oxide or an alkali metal, preferably Na, chloride, nitrate, phosphate, sulphate or carbonate in an amount 0À5-2À5% by wt. of the pigment product. The iron may be provided as Fe 3 O 4 , Fe(OH) 3 , FeOOH or Fe 2 O 3  of particle size <1Á, and the manganese as MnCO 3 , Mn 2 O 3 , MnOOH or MnO 2  (pyrolusite) of <5Á.
Patent GB-1514997-A (GB)
Title: Educational punched-card/tape game playing device
IPC: A63F3/02
Filed: 1975-07-23
Abstract: 1514997 Game playing devices; punched card machines G R A CAHN-HIDALGO E CASTANON-PASQUEL and J D R ROLDAN 23 July 1975 [18 Oct 1974] 30858/75 Heading A6H A device for playing board games, such as chess, has a top plate 2 marked with game positions 3, 4 which are selectively illumined by an array of light cells 6, one for each position, which are energised sequentially according to a predetermined programme recorded as punched information bits 17 on a card or tape 20. The punched holes are sensed by a linear array of resilient contact fingers 16 and a contact backing plate 15 (Fig. 6), as the card is manually advanced, in either direction, beneath the fingers. Plungers 11, 12 actuate card driving sprockets engaging perforations 18.
Patent GB-1119792-A (GB)
Title: Improvements in electrostatic methods and apparatus for applying toner to a substrate
IPC: B41M1/12
Filed: 1965-07-21
Abstract: 1,119,792. Electrostatic printing. CONTINENTAL CAN CO. Inc. 21 July, 1965 [30 July, 1964], No. 30919/65. Heading B6C. In an electrostatic printing process wherein electrically charged particles are caused to pass through a stencil on to a surface to be printed, the particles comprise carrier particles of conductive material with non-conductive, toner particles, adhering thereto by triboelectric force. The conductive carrier particles may be charcoal, metal shot made of steel, aluminium or copper or preferably iron filings. The smaller toner particles consist of pigmented or dyed particles of a mixture of n-butyl methacrylate and polystyrene. In one form of apparatus for carrying out the process, an inclined base electrode 15 is mounted on an insulated support 35. Spaced from the electrode 15 but parallel thereto are a conductive screen 30 with parts blocked out to form a stencil, and a sheet 19 to be printed backed by an electrode 16. The electrode 15 is connected to the negative side of a high-voltage source 20 and the electrode 16 is connected to the positive side. A mixture of the particles is fed from a hopper 10 over the electrode 15. The carrier particles are charged by conduction from the electrode 15 and are expelled therefrom towards the sheet 19 with toner particles adhering thereto. However, the size of the particles is such that only the toner particles can pass through the mesh of the screen 30 so as to form the pattern on the sheet 19, and these particles can be fixed on the sheet by heat or a solvent, particularly if they are of materials of low melting point. Surplus particles fall into a receptacle 41 at the bottom of the electrode 15. To avoid the effect of build-up of particles on the underside of the screen 30 which would cause a repulsive force to be exerted on particles leaving the electrode 15, a suitable voltage is applied to the screen of opposite polarity to that applied to the electrode 15. In other constructions, the parts 15, 16, 19, 30 are in horizontal planes, and an ordinary stencil is employed together with a separate screen to prevent the passage of the carrier particles. The screen may in some cases be omitted. Surfaces of irregular contour may be printed by the process.
Patent GB-1010729-A (GB)
Title: Improvements in or relating to the production of staple fibre from continuous filaments
Inventor: MEDLYCOTT LIONEL SHEFFIELD
IPC: D01G1/04
Filed: 1963-08-06
Abstract: 1,010,729. Stapling filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 17, 1964 [Aug 6, 1963], No. 30975/63. Heading D1F. Apparatus for the production of staple fibres from continuous filaments comprises cutting means 21 associated with a filament supporting former 1 of substantially round section at one end 2 with its surface altering gradually along its length to a substantially horizontal flat section at the other end 3. Pulleys 16-18 are rotated about the end 2 by shafts to lay the tow around the former. A plurality of pegs 10 are mounted on a canded non- rotating ring 9. Fig. 1 (not shown), also mounted on shaft 5 to reciprocate the pegs in slots 11 to advance the tow to belt 19 which feeds the tow to the cutting blade and the staple fibres to end 3. One of the pegs 10 has bearings moving in guides so as to prevent the other pegs from contacting the sides of the slots.
Patent GB-603066-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B29D5/02
Filed: 1945-11-19
Abstract: 603,066. Sliding-clasp fasteners. CORNER, G. H.C., FLETCHER, O. E., and LIGHTNING FASTENERS, Ltd. Nov. 19, 1945, No. 30988. [Class 44] The fastener members of sliding clasp fasteners are formed of non-metallic mouldable material having a softening temperature sufficiently high that no deformation of the members occurs on exposure to temperatures of the order of 100‹ C., and the members are cast or otherwise secured by the application of heat and pressure on a tape of which at least the beaded edge is formed from a glass fabric of such mesh that the material of the members will key therewith. The members may be applied to the tape in finished or partly-finished condition, and may be of thermoplastic or thermohardening synthetic material, or of glass. The tape and/or its beaded edge may incorporate a metal reinforcing member, and the glass fabric tape may be an auxiliary band subsequently secured to an ordinary fabric tape.
Patent GB-210053-A (GB)
Title: Improved means for supplying current to rare gas electric discharge tubes
IPC: H05B41/232
Filed: 1923-12-10
Abstract: 210,053. Claude, G., and Beaufort, J. M. E. de. Jan. 22, 1923, [Convention date]. Lighting systems.-A neon or other rare gas tube for use as a lamp or for advertising is supplied through a leaky transformer having a characteristic exactly the reverse of that of the tube; by this means the drop across the transformer is increased after stating. The tube may be connected with the high tension winding of the transformer directly or through a condenser compensating for the wattless current; or the condenser may be connected in parallel with the tube so that high frequency current is produced which modifies the colour of the light, as by intensifying the green lines of the spectrum of neon at the expense of the red lines.
Patent GB-506889-A (GB)
Title: Process for extracting sugar from molasses by dialysis
IPC: C13B35/08
Filed: 1938-10-28
Abstract: 506,889. Sugar. SYLVANIA INDUSTRIAL CORPORATION. Oct. 28, 1938, No. 31192. Convention date, Oct. 28, 1937. [Class 127] [Also in Group III] Sugar is extracted from molasses by dialysis through a membrane of water-swelling non- fibrous cellulose, preferably regenerated from Viscose or a cellulose ester.
Patent GB-410131-A (GB)
Title: Improvements in or relating to means applicable to vehicles for jacking up or like purposes
IPC: B60S11/00
Filed: 1932-11-05
Abstract: 410,131. Jack seatings on vehicles. LAKE & ELLIOT Ltd., Albion Works, and LAKE, W. B., Mount Place, both in Braintree, and RUBURY, J. M., Little East, Bocking, both in Essex. Nov. 5, 1932, No. 31306. [Class 78 (iii).] To enable a lifting-jack to be placed in position and operated from the side of a vehicle, a seating for the head thereof is provided on the underside of a beam, lever or arm member pivotally connected to the wheel axle or spring, the seating preferably being located at a horizontal distance from the axle which is slightly less than the wheel radius. The beam or lever 1 may be pivoted to a lug 2 associated with the usual clamping means 3, 8 for securing the spring 5 to the axle 6, the lug being above or below or to one side of the spring and the beam or lever 1 in alignment with ortransversely inclined to the spring as desired ; the beam or lever may, further, be straight, Fig. 3, or bent, Fig. 4. The pivotal connection may be to the outer end 20 of the spring, as shown in Fig. 6, the beam 1 in this form, being troughshaped and partially enclosing the spring. In the above cases, the beam or lever is yieldingly held up to the spring 5 by a U-shaped member 15 with supporting springs 16 on the threaded ends 17 thereof. In another form, the beam is pivotally connected at one end to the axle and at the other end to the outer end of the vehicle spring. Specifications 410,145 and 410,146 are referred to.
Patent GB-1075657-A (GB)
Title: Improvements relating to band conveyors
Inventor: BEKTIN JEAN HENRI
IPC: B65G15/60
Filed: 1964-08-04
Abstract: 1,075,657. Endless conveyers. BERTIN & CIE. Aug. 4, 1964 [Aug. 1, 1963], N . 31314/64. Heading B8A. An endless conveyer band, particularly for human passengers has its upper load conveying run passing over a plurality of tanks 5, the upper walls 5b of which have apertures therein, and pressurized fluid supplied from conduits 8 is passed via valves 6 to the apertures to reduce friction between the band 1 and the walls 5b the valves 6 being controlled by the local loading on the band 1. As an area of the band 1 is loaded, the underlying tank 5 is displaced downwardly relative to a clack 6a which is secured to the frame 11 via a stem 6d and excess fluid passes from the tank into a sump for recirculation. In the unladen condition the clack 6a engages the valve seat 6b which has bleed passages 6c to allow a minimum circulation of fluid. The tanks 5 are flexibly connected across the band 1 to the frame 11 and to each other along the band, by rubber blocks 10a. Each tank is flexibly coupled to the conduit 8 by a fingerstall diaphragm 7 anchored between a guide on the tank and a clamp on the upper end of the conduit, the downward motion of the guide being limited by a stop on the conduit. The band 1 comprises a metallic band 1a sheathed in layers of rubber 1b 1c, the inner layer 1b incorporating fluid deflecting edges 1e along its sides. The band 1 is supported by side rollers 16, bottom rollers 4 and flanges on the end wheels (2), Fig. 1 (not shown). The band is driven in unison with a handrail 12. A flexible skirt 18 extends between the handrail wall and the band 1 and a passenger platform 17 is provided along the remote side of the band. In a further embodiment, Fig. 6 (not shown), a spring-loaded flap valve is provided between the tank and the conduit and is operated by the pressure differential between the two. In another embodiment, Fig. 7 (not shown), a roller sensing deflection of the band causes, through a spring-returned pivoted lever arrangement, a fluid inlet into the tank to be variably opened. This pivotal action may be transferred to adjacent tank levers by an elastic coupling shaft. Another embodiment, Fig. 8 (not shown), utilizes a tube engaging the band due to buoyancy and fluid pressure is retained in a housing extending up from the conduit, the tube and housing forming the valve. In a final embodiment, Fig. 9 (not shown), the tanks are inclined to each other across the belt to effect a troughing of the belt and the valve is replaced by a calibrated Venturi through which a compressible fluid is supplied.
Patent GB-343429-A (GB)
Title: Improvements in or relating to the process of producing cellulosic pulp
IPC: D21C3/22
Filed: 1929-10-15
Abstract: 343,429. Cellulose pulp. CORNSTALK PRODUCTS CO., Inc., 10, East 40th Street, New York, U.S.A.-(Assignees of Darling, E. R. ; P.O. Box 88, Danville, Illinois, U.S.A.) Oct. 15, 1929, No. 31321. Convention date, Dec. 13, 1928. [Class 96.] In the digestion of cellulose material, particularly of plants of annual growth, such as cornstalks, the initial strength of the digesting liquor is maintained constant during the operation. Digestion may be effected by caustic soda or calcium bisulphite, or by caustic soda and sodium sulphite. In the use of caustic soda a strength of one per cent solution is maintained, and, in consequence, the time of digestion is reduced by one quarter and the pressure by one half; for example, in digesting cornstalks the time for digestion is one and a half hours and the pressure two and a half atmospheres, corresponding to a temperature of 137 C. Concentrated or weak solutions, or solid alkali may be introduced, to an amount determined by a curve plotted to show the normal degradation, by means, for example, of an injector or pump. The liquor, separated subsequently by a centrifuge, may, by reason of the refortification be used again up to six times.