baber/WOPTO huggingface dataset:
Patent GB-189332-A (GB)
Title: New or improved apparatus for manifolding shop bills, receipts and the like
IPC: B41L3/14
Filed: 1921-11-08
Abstract: 189,332. Southby, E. Nov. 8, 1921. Sheet holders; carbon papers, means for manipulating; memorandum appliances.-Manifolding apparatus for shop bills, receipts and the like, consists of a base a carrying a container b for the bills &c., the bills being in the form of folded superposed continuous strips c which pass out of the container and are interleaved with a corresponding number of carbon sheets e clamped to the base. The strips c are perforated transversely at intervals and pass under the roller d and a clamping device f, the latter being provided with a spring m causing the edge f<1> to grip the strips which are released by depressing the trigger f<2>. The carbon sheets e are secured to the base by two clamping strips g, each of which is held in place by a socket h at one end and a key-hole slot g<1> and nut i at the other end. A metal plate or other smooth writing surface j is secured to the base, the carbon sheets being secured above it. The end j' of this plate, projects beyond the base so as to provide a sharp edge for detaching the bills &c. Two detachable division walls n engaging slots on the container, allow of the adjustment of the opening b<1> in the wall of the container for various sizes of strips.
Patent GB-768731-A (GB)
Title: Improvements in junction type semiconductor electrical devices
IPC: H01L21/60
Filed: 1954-10-15
Abstract: 768,731. Semi-conductor devices. GENERAL ELECTRIC CO. Oct. 15, 1954 [Oct. 16, 1953], No. 29773/54. Class 37. A method of making a PN junction device comprises fusing to a surface of a semi-conductor body of one conductivity type a blob of material characteristic of the opposite type to form a PN junction, applying insulating material at least to the surface surrounding the blob and applying pressure to the blob to flatten it out over the insulating material so giving improved heat conductivity between the body and blob. A slice 1 of monocrystalline N type Ge cut from an ingot grown by seed crystal withdrawal from a donor doped melt is soldered to a fernico base 2 by a donor-containing solder 3, e.g. tinarsenic alloy as described in Specification 748,845 in a non-oxidizing or reducing atmosphere. A blob 5 of ductile acceptor, e.g. thallium, aluminium, zinc, but preferably indium, is fused to the opposite face of the body, preferably in a separate heating at 500-600‹ C. The body is then etched electrolytically, or chemically using, e.g. 80 per cent nitric, 15 per cent hydrofluoric, 3 per cent acetic acids mixed with 2 per cent bromine for circa 5-10 seconds to remove the surface portion of the junction and washed. The body is then dipped in an insulating varnish or resin and cured or a solution, e.g. of oleophenolic, epoxymelamine, acrylic, vinyl, polystyrene, polyethylene or phenolformaldehyde resin is sprayed or brushed all over the surface or just around the blob and the blob deformed by pressure to extend over the insulating layer so formed. Alternatively, insulating layers of alumina, silica, germanium oxide or titanium oxide or a sheet of mica or one of the above resins closely fitting around the electrode may be used. Si may be used instead of Ge and the body may alternatively be P type in which case the blob contains donor material, e.g. Sb, P, As. A graphite block 11 (Fig. 5) pressed against the flattened blob 10 by spring 12 may be used with the device to further improve the heat dissipation.
Patent GB-1330922-A (GB)
Title: Method of manufacturing diamonds
IPC: C01B31/06
Filed: 1971-06-24
Abstract: 1330922 Diamond TELEDYNE Inc 24 June 1971 [13 Aug 1970] 29778/71 Heading C1A Diamonds are prepared by placing a mixture of non-diamond carbon and a carbon solvent in a cylindrical reaction chamber, inserting a piston into said reaction chamber, applying pressure to said chamber by applying force to the piston, and heating the reacting chamber until the conditions in the chamber are above the m.p. of the solvent and above the diamond-graphite equilibrium of the carbon phase diagram, the pressure and temperature being maintained for a time sufficient to convert at least a portion of the graphite into diamond, the piston being advanced further into the chamber as the graphitediamond conversion occurs, so as to reduce the volume of the reaction chamber and compensate for the density difference between diamond and graphite whilst simultaneously ensuring that the pressure in the chamber remains above said diamond graphite equilibrium line. The carbon charge may be placed in a vessel 80, which is placed in the cylindrical reaction chamber 44, into which chamber the cylindrical piston 46 is inserted. The pressure is applied via load plate 48 and pressure plate 42, and the container may be heated by insulating one from the other with insulating layer 86 and applying a potential between the piston pusher 52 and the load plate. Preferably, the pressure in the chamber is maintained substantially constant by the advance of the piston by appropriate amounts. A pressure may be applied to the chamber which is no greater than 0À1 kilobar above the diamond-graphite equilibrium line, and such pressure is then maintained for a period of time sufficient to form diamond.
Patent GB-851977-A (GB)
Title: A molecular sieve adsorption process
IPC: C10G25/03
Filed: 1958-09-18
Abstract: In the separation of hydrocarbons using a molecular sieve by the process of the parent Specification wherein adsorbed hydrocarbons are desorbed by an olefine, a relatively constant ratio between feed residence time and mass transfer time is maintained as the sieve increases in age; this is achieved by (a) increasing the adsorption temperature, (b) increasing the length of feed cycle without increasing the amount fed or (c) increasing the length of desorption cycle while maintaining the feed rate of desorbing material constant, or by a combination of such methods. At intervals the sieve is regenerated by heating to 650-850 DEG F. while purging with an inert gas or reducing the pressure to below 100 mm.  At longer intervals the sieve is further regenerated by heating to 500-1000 DEG F. in the presence of an oxygen-containing gas; this is preferably done in three stages, first heating and purging with a hot inert gas secondly treating with a gas containing 0,2-10% oxygen and lastly with air. Specifications 820,225 and 821,020 are referred to.
Patent GB-770337-A (GB)
Title: Improvements in or relating to conveyors
Inventor: SEED ERNEST CARL
IPC: B65G19/28
Filed: 1954-10-18
Abstract: 770,337. Endless-chain conveyers. COWLISHAW, WALKER & CO., Ltd. May 13, 1955 [Oct. 18, 1954], No. 29960/54. Addition to 666,751. Class 78 (1). The conveyer of the parent Specification is modified by making adjacent ends 32, 33 of consecutive upper units 5 dissimilar and arranging them to overlap. Transverse bars 9 are welded to the flat bottom 6 of each upper unit. The middle of each bar is covered by a deflector plate 31, the ends of which are welded to the bar and to the bottom.
Patent GB-1424832-A (GB)
Title: Apparatus for the production of moulded bodies in a double walled mould
IPC: B29C41/52
Filed: 1973-03-29
Abstract: 1424832 Heating and cooling moulds THERMOVOX GmbH KUNSTSTOFFMASCHINEN 29 March 1973 [13 June 1972] 29982/75 Divided out of 1424831 Addition to 1241064 Heading B5A [Also in Divisions F3- F4] The apparatus is similar to that described in the parent Specification 1,241,064, but the fluid containers are additionally mounted above the mould, to aid fluid flow from the containers to the mould.
Patent GB-1089141-A (GB)
Title: Improvements in or relating to electric motor control circuits
IPC: H02P7/288
Filed: 1966-07-04
Abstract: 1,089,141. Control of D.C. motors. MICROMEGA S.A. July 4, 1966 [July 6, 1965], No. 30032/66. Divided out of 1,059,612. Heading H2J. The motor control circuit described in Specification 1,059,612 is modified to provide for limitation of the current on starting, to provide protection for the motor when the polarity of the supply is reversed to change the direction of rotation, and to ensure rapid stopping of the motor when the supply is switched off. Starting current is limited by supplying the control circuit by way of a transistor having an R.C. circuit associated with its base, so that when the supply is switched on the transistor is not rendered fully conductive until the elapse of a period of time determined by the time constant of the R.C. circuit. Protection during reversal is afforded by a time-delay relay actuated when the polarity of the supply is charged. Lastly, when the supply is switched off the motor is arranged to act as a generator feeding into a resistor, whereby rapid braking is effected. A suitable circuit arrangement embodying the three protective features 'is described with reference to Fig. 2 (not shown).
Patent GB-874830-A (GB)
Title: Devices for controlling the mechanism of a multiple-level lift
IPC: B66B1/52
Filed: 1958-09-19
Abstract: 874,830. Lifts. SOC. DES FORGES ET ATELIERS DU CREUSOT. Sept. 19, 1958 [Oct. 18, 1957], No. 30043/58. Class 78 (3). A floor selector for a lift system comprises cams 9a-9e which are simultaneously moved axially and rotatively, in the directions of arrows F and f, as the car is raised in the shaft, and which successively engage a lever 6 arranged to raise wedges 5a-5e which thereby successively operate switches 1a-1e, each corresponding with one landing. The cams are carried by a sleeve 10 which engages threads on a stationary screw 11 and is splined to a hollow shaft 13 driven through a bevel pinion 16 by movement of the car in the shaft. The cams are angularly adjusted to compensate for wear in the grooves of the hoisting pulleys by pinions 17a-17e meshing with pinions 18a-18e on a shaft 19 which is rotatable through an irreversible worm drive 22, 23 by a hand wheel 24. Shims (not shown) may be inserted between the cams and the adjacent pinions 17 to adjust the selector for unequal distances between floors. Switches 1a-1e can control either an electric or a fluid pressure lift system.
Patent GB-283835-A (GB)
Title: Improvements relating to machines for breaking coal or other friable material
IPC: B02C1/12
Filed: 1927-11-09
Abstract: 283,835. Norton, B. Nov. 9, 1927. Reciprocating picks.-A machine for breaking coal &c. is provided with two sets of picks which are lowered simultaneously to strike the coal carried on a conveyer, the first set consisting of rows spaced widely apart while those of the second set are closer together, and the distance between the sets, in the direction of movement of the conveyer, is greater than the distance between adjacent rows in the first set. As shown, the coal moves from right to left on a conveyer 1 intermittently operated by a silent pawl 5 and connection 7 from the main shaft 8. Resiliently-supported anvils 19 are provided as in Specification 276,943. The sets of picks 17, 18 are mounted on a lever 12 rocked about a pivot 13 by crank mechanism, and the distance between the sets is greater than that between the rows of the first set 17. In another form the pivot 13 is constrained to move horizontally as the lever rocks whereby a substantially vertical movement is given to the picks; or, the picks may be mounted on links forming part of a parallel motion for this purpose. In a further form the sets of picks are mounted on a cross head sliding in vertical guides and reciprocated from the main crank shaft.
Patent GB-173648-A (GB)
Title: Improvements relating to electric relays
IPC: H01H50/54
Filed: 1920-10-25
Abstract: 173,648. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., and Pearce, W. A. Oct. 25, 1920. Electromagnetic switches; contacts. - In an electric relay, more particularly of the kind used in track circuit signalling systems, two windings are mounted on a U-shaped core having vertical limbs secured to a base plate at their lower end and cross-connected by a yoke at their upper end. In Fig. 2, the cylindrical cores are shown cut away to afford a plane surface against which abut the back straps 3, which are held in position by bolts 34. This construction secures a good magnetic joint, and the reluctance of the magnetic circuit may be reduced by increasing the vertical width of the back straps 3. The cores need not be of circular cross-section. The lower end of each core 2, Fig. 1, is provided with a pole-piece 6 and an armature 7 is pivoted at 8 on brackets carried by the base 1. On de-energizing the winding 4, the armature returns to its unattracted position under gravity. Resilient contact members 9 are secured to the underside of the armature, one end of which is connected by a flexible lead 10 to a terminal 11, the other end being fitted with forked contacts 12, 13 to engage fixed contacts 14, 15. The contact 14 has an upper element of which 16 is a squared portion and 17 is cylindrical. The squared portion 16 is fitted with a screw-threaded pin or stud 18 carrying terminal nuts 19. The squared portion 16 fits into a similar recess in the base, the lower portion of the recess being cylindrical to accommodate the portion 17. The contact 14 is provided at its lower end with a squared portion 20 and a cylindrical portion 21 fitting into a recess in the underside of the base similar to that accommodating the parts 16, 17. The two contact elements, on being inserted into the base from above and below in their corresponding recesses, are secured together by a screw 22. The squared portion 20 is fitted with a carbon block 23 secured in position by a screw 24. The contact 15 has a squared portion 25 and a cylindrical portion 26, the portion 25 being fitted with a stud 27 and terminal nuts 28. The squared portion 25 fits into a square recess in the base and is secured to it by a bolt 29 screwed into portion 26 and held by a nut 30. The lower end of bolt 29 carries nuts 31 which support a resilient contact 32 engaged by the contact 13 when the relay is de-energized.
Patent GB-500823-A (GB)
Title: Improvements relating to the manufacture of twine, thread, cord and the like from long fibre material
IPC: D01H7/92
Filed: 1937-11-04
Abstract: 500,823. Spinning yarn from slivers. LINEN THREAD CO., Inc. Nov. 4, 1937, No. 30222. Convention date, Jan. 21. [Classes 120 (ii) and 120 (iii)] Slivers of long fibre material such as bast fibres of jute, hemp, flax and the like are drawn from cans through twist apparatus 10 arranged at a point approximately at the upper end of the upwardly - directed course of the sliver and are spun directly into yarns. The twist apparatus 10 comprises hubs with axial bores and extending arms 11, Fig. 3, carrying sliver guides 12, whereby the twist imparted during the upward travel is removed, and the sliver is subjected to intermittent pulls which facilitate its removal from the cans. The hubs are carried in brackets 8a and are driven by gearing 16 from a shaft 17. The sliver may be drawn by gills or as shown by rollers 3, 4 with false twist apparatus 19. Specification 407,690 is referred to.
Patent GB-770220-A (GB)
Title: Apparatus for effecting mixing of liquid or plastic materials
Inventor: DIBDIN THOMAS JAMES RIMBAULT
IPC: B01F27/73
Filed: 1955-08-11
Abstract: 770,220. Mixing-machines. DUNLOP RUBBER CO., Ltd. Aug. 11, 1955 [Oct. 21, 1954], No. 30294/54. Class 86 Mixing apparatus comprises a cylindrical container 14, a shaft 13 adapted to rotate in the chamber 14, and perforated plate-like members 17a, 17b mounted on the shaft in a swash-plate manner so that they obturate the bore of the cylinder. The plates 17a, 17b are elliptical and are perforated with holes 18 arranged in staggered relationship. In mixing dispersions with foamed rubber latex, the latter is pumped through an inlet 21 and zinc oxide dispersion and a dispersion of silicofluoride gelling agent injected through inlets 22, 23 respectively. The cylinder 14 has an outlet port 15.
Patent GB-1061090-A (GB)
Title: Rotary drilling bit
Inventor: FEENSTRA ROBIJN
IPC: E21B10/18
Filed: 1965-07-16
Abstract: 1,061,090. Boring earth &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. July 16, 1965, No. 30319/65. Addition to 1,049,843. Heading E1F. In a roller bit according to the parent Specification the lower parts 12 of the projecting nozzles 10 are formed with parts 13 to prevent junk wedging between the lower parts and the face of the hole. The lower parts may also have projections 19 (Fig. 4, not shown) which prevent junk wedging between the adjacent rollers and the lower parts.
Patent GB-319521-A (GB)
Title: Improvements in apparatus for moulding bricks, blocks or the like of plastic material
IPC: B28B7/00
Filed: 1928-10-20
Abstract: 319,521. Bate & Son, Ltd., J. J., and Bate, W. N. Oct. 20, 1928. Moulds.-A mould, particularly for roundfaced bricks having ornamental patterns, comprises a rigid frame 4 divided into one or more compartments 5 each fitted with a detachable liner composed of two L-shaped members 12, 13 hinged together at 14. The liner is ejected with the moulded brick and separated laterally therefrom. Projections 15 on the members 12, 13 facilitate separation. The mould compartments are recessed to acommodate the parts 14, 15.
Patent GB-1505028-A (GB)
Title: Preparation of gamma-pyrones
IPC: A23L27/20
Filed: 1976-07-21
Abstract: gamma -Pyrones, for example maltol which can be used as a perfumery agent, are obtained by a rearrangement reaction of epoxybeta -pyrones of formula II, in which R and R' have the meaning given in Claim 1, with an acid. It is possible to synthesise the compound of formula II by reaction of a compound of formula III (which can be obtained from furfural) with an acid anhydride having a pKa of </= 4, and subsequent epoxidation. <IMAGE>
Patent GB-934415-A (GB)
Title: Improvements in electronic vacuum pumps
IPC: H01J41/20
Filed: 1960-09-05
Abstract: 934,415. Ion-getter pumps. ULTEK CORPORATION. Sept. 5, 1960 [Sept. 25, 1959], No. 30550/60. Class 39 (1). An electric vacuum pump comprises a plurality of anode elements, a plurality of cathode elements, a vacuum pump enclosure therefor, and an inlet communicating with the interior of the enclosure in which means are provided for causing a multiple cold cathode discharge between the anode and cathode elements within the enclosure and means are provided within the enclosure for independently depositing additional reactive material therewithin. The anode elements 11, Fig. 2, are formed in units, each consisting of two groups of four with cathode plates 17 shaped as in Fig. 3, mechanically joined to the anodes by insulators 19, a number of units, for example eight, being joined together to form a cartridge. The cathode shafts 15 are joined together at each end of the cartridge by plates. A plurality of side tubes are connected to the apparatus to be evacuated. An evaporator is located in another side tube, Fig. 6 (not shown), and comprises a refractory supporting filament with a wire or strip of Ti wound around it with no spaces between turns, the wire or strip being spot-welded to the filament at each turn. The cartridge is insulated from the envelope by insulators 19 and others. A magnet with polepieces sets up an axial field. The pump is used in the degassing of oxide-coated cathodes.
Patent GB-1279623-A (GB)
Title: Bearing and method of manufacturing the bearing
Inventor: BAKER ALAN ANTHONY
IPC: C25D15/00
Filed: 1968-06-27
Abstract: 1279623 Bearings ROLLS-ROYCE Ltd 23 June 1969 [27 June 1968] 30658/68 Heading F2A [Also in Division C7] Bearings or bearing elements are produced by winding a reinforcing fibre on to a former and simultaneously electro-coating the fibre being wound; the coating being of metal with either a lubricant material or pores for carrying lubricant dispersed therein. The electrolyte may contain a fine dispersion of particles for co-deposition; the particles being of solid lubricant, e.g. molybdenum disulphide, tungsten disulphide or PTFE; or metal which is subsequently diffused into the matrix by heat treatment to form an alloy. The filament used may be of steel, carbon or ceramic and may be of flat tape form. The matrix material may be of platinum, copper, silver, nickel, lead, copper/tin, lead/tin or copper/  platinum. As shown electrolyte containing dispersed particles is circulated through cell 10 by means of pump 14, entering the cell via pipe 15; the cell including a filter 12, counter-electrode 22 and means for rotating a former 17 and for winding a filament thereabout during electrodeposition. The bearing elements may be journal bearings or cages or other parts of rolling bearings. Reference has been directed by the Comptroller to Specification 1,139,817.
Patent GB-629760-A (GB)
Title: An improved rotary compressor
IPC: F04C18/344
Filed: 1947-11-19
Abstract: 629,760. Rotary compressors. ENGLISH RACING AUTOMOBILES, Ltd., and BARRATT, A. Nov. 19, 1947, No. 30660. [Class 110(ii)] Sliding vanes 26, connected in pairs, have U-shaped members 28, at their ends, the inner parts of which engage flats 17 on cams 16 which are rotatable on bearings 31. The length of each flat is at least equal to twice the eccentricity of the drum 19 in its casing 22. The members 28 embrace vane-tips 27. The side edges of the vanes are recessed so that connecting portions 34 are axially displaced from one another, being reinforced by strips 35 riveted at 45. Phosphor-bronze plates 38 are secured by screws 39 to the sides of the vane slots in the drum. The drum is built up of four sectors 40 carried through screws 44, by a spider 41 secured to a boss 42 on the driving shaft 43. The drum has an axially-projecting periphery 33 which makes sealing contact with stator end plates 32 and encloses cams 16.
Patent GB-1464700-A (GB)
Title: Solenoid operated 3-way 2-position directional control valve
Inventor: BELART JUAN
IPC: F16K11/07
Filed: 1975-07-22
Abstract: 1464700 Valves ALFRED TEVES GmbH 22 July 1975 [24 July 1974] 30675/75 Heading F2V In a solenoid-operated 3-way 2-position directional control valve for an anti-skid system a valve spool 10, which connects an outlet 18 to an inlet 7 or an exhaust 8, is biased downwards by inlet pressure and upwards by outlet pressure and is moved upwards against the loading of a spring 34 when the solenoid 20 is energized. The outlet pressure when the solenoid is energized is thus a function of the current therein. The spool is formed with annular grooves 13, 25 respectively in permanent communication with the inlet 7 and the exhaust 8, and recesses 15, 27 in the respective end positions of the spool interconnects the respective groove with the respective end chamber 19, 23, which chambers are interconnected by channel 22 and communicate with the outlet.