baber/WOPTO huggingface dataset:
Patent GB-339183-A (GB)
IPC: E03B3/06
Filed: 1930-01-29
Abstract: 339,183. Henry, C. A. Jan. 29, 1929, [Convention date]. Addition to 305,191. Rail joints, scarf, welded, and with tread fishplates.- The rail joints of the parent Specification are modified in several ways. The transverse plates are in two parts þ, c<1>, Fig. 21, each combined with an integral fishplate portion l which may be welded to the rails at m. The rails may be cut obliquely with the plates oblique to the fishplates. The transverse plates may be integral and tied by a bolt or a clip q, Fig. 24. The plates may be reinforced by a support riveted or bolted beneath the rails. The plates may be formed with members n, Fig. 8, supporting the rail bases and carried by a transverse member embedded in the ballast. The plates may extend laterally as well as vertically, or may be connected to lateral members E<1>, Fig. 16, by a bar S. The joint may be applied to girders or arch members.
Patent GB-549098-A (GB)
Title: Improvements in street lighting devices
IPC: E01F9/615
Filed: 1942-03-10
Abstract: 549,098. Street lighting lamps; road signs. CONCRETE UTILITIES, Ltd., and MARQUES, C. A. March 10, 1942, No. 3118. [Class 75 (iv)] [Also in Group XVIII] A street-lighting device comprises a hollow shroud a of concrete, reinforced concrete, brickwork, brickwork and cement or other plastic material, open at its top or base or both top and base and formed with openings m through which the light can penetrate from a permanent or portable lamp placed inside it. In the construction shown in Fig. 2 the shroud fits over a base plate r and has a flanged top e to receive a removable cap c formed with ventilation holes v. The openings m may be fitted with metal or glass panels having indications thereon or the openings may be in the shape of the desired indications. Drainage apertures u are provided at the bottom of the shroud. A passage p for electric cables may be provided in the base plate r. Fig. 11 shows a road pylon formed with an opening x having an inclined face for directing light on the roadway in addition to the openings m. An inspection panel may be provided at the rear of the pylon.
Patent GB-763262-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C13/20
Filed: 1954-02-02
Abstract: 763,262. Impact mills., KELLER, B., and BERNCASTLE, E. J. M. DE. Feb. 2, 1954 [Feb. 10, 1953], No. 31.22/54. Class 59 [Also in Group XXX] A grinding mill comprises a pair of bladed rotors 21, 26 disposed in chambers 14, 16 defining therebetween an interconnecting space 24a, 28a which is bounded by walls having projections 24b, 28b, the rotors being driven by motors 35 in the same direction and at substantially the same speed, and the rotor blades 24, 28 being so arranged that at a predetermined instant adjacent blades of both rotors will further bound the space 24a, 28a, and at a further instant adjacent blades of the rotors will be oppositely disposed in substantial alignment. Each motor is contained in a shell 36, Fig. 4, provided with vents 37 through which, on rotation of the rotors, cooling air is drawn, the air being expelled partly through vents 38 at the rear end of the shell 36, and the remaining air, after being drawn through a discharge opening 42 in a wall 43 at the rear of the mill housing and through passages 45a in the mill housing, being discharged through outlets 45 and 44. The ground material passes through screens 25, 34. The chambers 14, 16 are closed by a removable cover plate 30 to which are attached two branches 13, 15 of a feed conduit 50, the flow of material to the chambers being controlled by means of an angularly adjustable gate 17. Each chamber is provided with internal projections 14b, 16b. The chambers may be slightly oblong or ovate. In a modification. Fig. 5 (not shown), the rotor shafts are adjustable towards or away from each other. In a further modification, Fig. 6 (not shown), the rotor blades are angularly adjustable.
Patent GB-923062-A (GB)
Title: Purification of sulphur chloride pentafluoride
Inventor: RAY NEIL HUNTER
IPC: C01B17/46
Filed: 1960-01-28
Abstract: Sulphur chloride pentafluoride is isolated from a mixture containing other sulphur/halogen compounds, e.g. SF4, SF6, SOF2, halogen, e.g. fluorine or chlorine, and interhalogen compounds, e.g. CIF, CIF3, by washing with fresh water, drying the separated vapour phase and removing any SF6 therefrom by gas chromatography, e.g. using a column of polychlorofluorocarbon (CF2. CFCl)n and dry nitrogen as carrier gas.  Washing may be countercurrent in an absorption tower at 15-25 DEG C. and under pressure from 1-5 Atms.  Drying may be effected with anhydrous CaSO4 in a second tower. Specifications 875,209, 877,458 and 883,673 are referred to.
Patent GB-142081-A (GB)
Title: Process for the production of solid basic magnesium hypochlorite
IPC: C25B1/26
Filed: 1920-02-02
Abstract: When chlorine is passed into an aqueous suspension of magnesium oxide, basic magnesium hypochlorite is precipitated, provided that for every molecule of normal hypochlorite produced, more than 2 (preferably 5 to 6) molecules of magnesia remain unattacked. The most favourable temperature for the process is 20-22 DEG  C. Practically the whole of the available chlorine is absorbed by the precipitate, without any appreciable production of chlorate, if, after the introduction of the chlorine, the reacting mixture be allowed to stand for a considerable time, or be heated to 80 DEG  C. and kept at that temperature for from 6 to 8 hours, in the dark.  The precipitate, after well washing with hot water, is dried with exclusion of carbon dioxide.
Patent GB-260460-A (GB)
Title: Improvements in or relating to photographic processes
IPC: G03F7/038
Filed: 1926-02-04
Abstract: 260,460. Wade, H., (Wadsworth Watch Case Co.). Feb. 4, 1926. Phenol-methylene condensation products. - Synthetic resins are produced by condensing a phenol with an active methylene body such as formaldehyde or hexamethylenetetramine. Examples are described in which phenol or cresol is condensed with formaldehyde in the presence of sodium acetate or acetic acid. Specification 203,285, [Class 98 (ii), Photographic processes &c.], is referred to.
Patent GB-805250-A (GB)
Title: Improvements in or relating to digitally operable electric selecting switches
IPC: H04M9/00
Filed: 1957-01-30
Abstract: 805,250. Mechanical switches without quickaction. TELEFONAKTIEBOLAGET L. M. ERICSSON. Jan. 30, 1957 [Jan. 30, 1956], No. 3343/57. Class 38 (5). A telephone selector has a dial plate 2 rotatable in either direction with a shaft 8 which carries a disc 3 with wiping contacts 6, 7, movable over contacts 13... 16 on a fixed disc 4. The ends 6b, 7b of contacts 6, 7 ride respectively on rings 16, 15 and ends 6a, 7a on rings 14, 13 which consist of alternate insulating and contact segments. A finger stop 11 is carried by an arm which is frictionally mounted on the shaft 8 and which projects through a slot 17 in a cover 10. The length of the slot 17 is such that the stop 11 can move angularly to an extent equal to half of the angular pitch of the holes 2a in the plate 2, and the angular pitch of the contacts in rings 13, 14 is also half of that of the holes 2a. Each hole 2a is associated with two numbers, viz. one in the series 1-12, and one in the series 13-24, in such a way that numbers 1-12 are selected by counter-clockwise rotation, and numbers 13- 24 by clockwise rotation, of plate 2, alternate contacts in rings 13, 14 being allocated to one series, with the intervening contacts allocated to the other. To select, for example, number 7 (with the plate set to number 8), the finger is inserted in the corresponding hole 2a and the plate rotated counter-clockwise until the finger abuts stop 11. This moves contact 7a from contact 138 to the next-but-one contact 137. To select number 17 (when set to 8), the finger is placed in the appropriate hole 2a and the plate 2 rotated clockwise. The stop 11 is also rotated clockwise by one half of the angular pitch (until stopped by end 17a of slot 17) by the frictional drive or by direct pressure from the finger. The plate 2 thus rotates through one half of the angular pitch so that contact 7a moves from contact 138 to contact 137. An arm 18 secured to stop 11 carries red and black spots 21, 20 respectively, which can be viewed through a window 19 in cover 10 so as to indicate the last direction of movement.
Patent GB-489509-A (GB)
Title: Improvements in and relating to pipe joints
IPC: F16L5/12
Filed: 1937-02-04
Abstract: 489,509. Pipe joints. LARSEN, K. A. F. Feb. 4, 1937, No. 3355. [Class 99 (i)] In a joint of the kind in which a sleeve 10 of bituminous material or the like which becomes plastic when subjected to heat is mounted in the socket and heat is applied after the spigot is introduced, the sleeve is cylindrical and extends the whole depth of the socket which is without internal grooves or recesses. The socket and sleeve may each be in two parts. In a connection for a pipe 5 passing through a floor 6, the two-part socket 9 is applied round a tube 7 fixed in an opening in the floor. The reduced extension 11 of the socket is clamped on to the pipe. A groove 12 contains packing.
Patent GB-722275-A (GB)
Title: Process for preparing polymers or copolymers of acrylonitrile
IPC: C08F20/44
Filed: 1952-02-08
Abstract: Polymers of acrylonitrile having a predetermined substantially uniform degree of polymerization are prepared by the aqueous solution polymerization of acrylonitrile, or mixtures thereof with up to 20 per cent of other polymerizable compounds such as vinyl acetate, vinyl pyrrole, and methacrylic compounds, by placing an aqueous solution containing a minor proportion of a water-soluble polymerization catalyst, such as ammonium persulphate, in a closed reaction zone, dissolving in the solution an amount of acrylonitrile which produces a predetermined overpressure by its vapour pressure, and then effecting polymerization at constant temperature, adding additional acrylonitrile as the reaction proceeds sufficient to maintain the overpressure within a range extending over at most 50 mm. Hg., until the reaction is substantially completed.  The molecular weight of the polymeric product is a function of the overpressure of the acrylonitrile monomer, higher pressures producing polymers of higher molecular weights.  The aqueous reaction medium may be acidified to a pH of 4 with nitric acid.
Patent GB-977125-A (GB)
Title: Electric bridges
IPC: G01F23/26
Filed: 1963-01-28
Abstract: 977,125. Electric bridge circuits; determining liquid level. BENDIX CORPORATION. Jan. 28, 1963 [Feb. 2, 1962; Feb. 23, 1962], No. 3487/63. Headings G1N and G1U. [Also in Division H3] An impedance bridge which is excited from an A.C. source 28 includes in one of its legs a device 22 such as a liquid quantity guage which has a varying capacitive reactance which may unbalance the bridge; the unbalance output of the bridge is amplified (in the amplifier 40) and rectified (in the rectifier 42) and coupled back to a semiconductor diode 12 included in a second leg of the bridge, in such a way that the capacitance of this diode alters so as to automatically rebalance the bridge. The diode 12 is operated below its conduction level. An output may be obtained from the bridge by using the rectified unbalance voltage to control a Pierce type oscillator 14 which includes a transistor 16 and a crystal 50. The varying unbalance voltage from the bridge acts so as to alter the collector-base capacitance of the transistor 16 and thus the output frequency of the oscillator, which is measured at the terminals XX. Changes in frequency are thus representative of changes in liquid quantity in the vessel 24.
Patent GB-1281840-A (GB)
Title: Electrical signalling apparatus
IPC: G01S17/32
Filed: 1970-09-17
Abstract: 1281840 Automatic phase control HEWLETT PACKARD CO 17 Sept 1970 [24 Nov 1969] 3487/72 Divided out of 1281828 Heading H3A  In the distance measuring equipment of Specification 1,281,838 the sequential phase switched IF signal is fed to a phase detector 67 the output of which, with switch 69 in the shown position, is fed via an integrator 71 to the control input of a phase shifter 75. The reference signal FR, frequency halved at 83 is phase shifted by 75 and then returned to frequency FR in multiplier 85. Antiphase outputs are selected at switch 109 and fed, via switch 97 in the shown position to the second input of phase detector 67. The phase locked loop so formed gives a continuous output H3-4 on line 63 at frequency FR and in phase with the reference signal part of the IF signal. Switches 69 and 97 are switched by the chopper signal, so that the channel 73, 77, 87, 91, 95 gives a continuous output I3-4 on line 61 at frequency FR and in phase with the reflected part of the IF signal.
Patent GB-471518-A (GB)
Title: Improvements in or relating to methods for making spring lock nuts
IPC: F16B39/286
Filed: 1936-02-05
Abstract: 471,518. Making lock-nuts. RENCHTITE SPRING NUT CO. Feb. 5, 1936, No. 3516. Convention date, May 27, 1935. [Class 83 (ii)] A spring lock-nut, comprising a stepped slot 12 and an inclined base portion 11 which engages the work to close the slot in use, is formed by hot or cold forging, punching, or rolling a bar of steel containing 0À4 to 0À6 per cent of carbon to the form of the nut, cutting, broaching, or milling the slot 12, tapping the bore 13 and hardening by heating, quenching and reheating to a hardness of 255 to 302 or higher on the Brinnell scale. The Specification as open to inspection under Sect. 91 comprises also slotting the blank after tapping or hardening. This subjectmatter does not appear in the Specification as accepted.
Patent GB-620985-A (GB)
Title: Improvements relating to horizontal boring and facing machines
IPC: B23B29/034
Filed: 1947-02-06
Abstract: 620,985. Boring and facing &c. machines. RICHARDS & CO., Ltd., G., and ARDERN, S. O. Feb. 6, 1947, No. 3593. [Class 83 (iii)] Attachments for turning.-An attachment for a horizontal boring and facing machine of the type having a vertically adjustable head on a column adjustable at right angles to the facing head axis, enabling the machine to deal with large workpieces, comprises an auxiliary column a secured to the table b, a rotor c journalled in the top of the column and having at one side an internal gear-wheel d driven by a gearwheel f secured to the facing head of the machine and at the other side a face plate e carrying one or more arms j equipped with radially-movable toolholders m. The pinion f for driving the attachment gear d is bolted to the facing head of the machine and adjusted into mesh by the normal vertical and horizontal machine adjustments. The slides k on the arms carrying toolholders m are fed radially by star-wheels n and a tappet o operating screw-and-nut mechanism. The tool-holder m, Fig. 4, may also be provided with screw-and-nut adjusting means r, s, for movement parallel to the main spindle axis by a hand wheel on a worm-shaft p engaging a worm-wheel q secured to the screw r.
Patent GB-725431-A (GB)
Title: Improvements in or relating to prime movers utilizing hydrostatic thrust
IPC: F04B9/10
Filed: 1953-02-09
Abstract: 725,431. Buoyancy motors. HOVEN, A. VAN. Feb. 9, 1953 [Feb. 22, 1952], No. 3644/53. Class 69 (1). A buoyancy motor consists of an outer cylinder 1, the open bottom of which penetrates into a liquid with substantially constant level, an inner cylinder 5 which is closed at the bottom and which slides in a fluid-tight aperture in the top of the outer cylinder, and means for raising and lowering the level of the liquid in the space 9 between the two cylinders. The means for altering the liquid level may be a source of vacuum connected to the top of the cylinder 1 or a source of liquid under pressure applied to the bottom of the cylinder which is momentarily isolated from the constant-level liquid. The sliding joint between the inner and outer cylinders may be replaced by a bellows and the inner cylinders of several motors may be connected by cranks to a common crankshaft.
Patent GB-197384-A (GB)
Title: Improvements in rotary contact devices for timing and distributing the sparking for electric ignition in internal combustion engines
IPC: F02P7/00
Filed: 1922-02-08
Abstract: 197,384. George, S., (George, J. H.]. Feb. 8, 1922. Rotary distributors; contacts.-A rotary distributor has a metal casing E within which are disposed relatively fixed roller contacts H with their axes radially disposed to the distributor shaft A. The contacts H are mounted within recesses g<1>, in an insulating annulus G and are journaled on pins with enlarged heads d<1>, these pins passing through and being insulated from the periphery of the casing E, their outer ends forming terminal connections D. The rotary contact maker C is pivotally mounted between lugs b<2> of a sleeve B secured to the shaft A. A spring c<2> on the pivot pin b<1> presses the contact member C against the fixed rollers H. Alternatively, a flat spring may be used for this purpose. The contact C may be arranged to rub over the intermediate portion of the ring G while passing between adjacent rollers, the surface of this ring being slightly below the common tangent plane of the rollers, or. alternatively, a stop c<3> may be provided on the member C in order that it shall clear this surface during its rotation. The casing E is provided with a timing lever e<2> and a retaining spring f<2>.
Patent GB-1379002-A (GB)
Title: Method of purification of laurolactam
IPC: C07D201/16
Filed: 1973-01-24
Abstract: 1379002 Purification of laurolactam POLYMER CORP 24 Jan 1973 [24 Jan 1972] 3689/73 Heading C2C [Also in Division C3] A process for purifying laurolactam comprises crystallizing the lactam from an organic solvent having the general formula wherein X is a (C 1 -C 18 ) alkyl group, an alkoxyalkyl group having from 1 to 18 carbon atoms in the alkyl group, or an alkoxyalkylene group having from 1 to 18 carbon atoms in the alkyl group and from 1 to 6 carbon atoms in the alkyiene group, or wherein X together with Y, forms a heterocyclic ring having 5 or 6 ring carbon atoms, and Y has either the same meaning as X, or, if X is alkyl, then Y may represent an aryl group with 1 or 2 benzene nuclei or a hydroxyalkyl group. The process is preferably carried out under an inert gas atmosphere. Suitable specified solvents include 1,2-dimethoxyethane, ethylene glycol monoethyl ether, diethyleneglycol diethyl ether, diethyleneglycol dibutyl ether, ethyleneglycol monobenzylether, triethyleneglycol dimethylether, tetramethyleneglycol dimethylether, tetrahydrofuran, anisole, dibutyl ether, methoxyethyl butyrate, venatrol, homoveratrol and dioxane.
Patent GB-106272-A (GB)
Title: Improvements in Apparatus for Making and Applying Caps to Bottles and the like.
Inventor: NORDSTROM ELOF
IPC: B67B3/064
Filed: 1916-08-30
Abstract: 106,272. Nordstrom, E. Aug. 31, 1915, [Convention date]. ' Crown corks,' applying.-Relates to apparatus for feeding cork inserts to bottle-caps in a machine in which the caps are made and applied to bottles, &c. The apparatus is of the kind in which a stationary hopper contains a rotary plate which feeds the corks by centrifugal action into a tangential outlet passage communicating with a shoot, and is described as applied to the machines described in Specifications 101,351 and 106,273. An annular plate 195, Figs. 2 and 3, spaced from the rotary plate 179 is rotatable on an axis inclined to the axis 178 of the plate 179. The plate 195 is supported at a slight inclination to the feed-plate 179 by a stud 196, and has apertures engaged by pins 194 on a yoke 193 carried by the vertical shaft 178. The plate 195 permits only a single layer of corks to be carried round the hopper by the plate 179. The corks pass into the tangential passage 180, and are fed down a shoot 151 by a plunger 184, Fig. 5. The bent end of a slide or agitator 192, which extends along one side of the passage 180 and serves to aline the corks as they pass into the passage, engages a recess in a block 190 on a shaft 182 rocked by an arm 186 and rod' 187 from an eccentric on the shaft 178. A leaf spring 183 on the shaft 182 supports at its end the plunger 184. The shaft 178 is driven by bevel-gearing from a shaft 199 which is driven by sprocket gearing from a shaft of the capping-machine.
Patent GB-1496450-A (GB)
Title: Farming machines intended for preparing the soil
IPC: A01B33/08
Filed: 1976-01-30
Abstract: 1496450 Soil preparing machines E LE GULENNEC 30 Jan 1976 [13 Feb 1975] 03780/76 Heading A1B A bladed rotor 10 is arranged to be rotated at high and low speeds but always in the same direction in relation to its support frame 1 so that the same cutting edges of the blades are employed, by providing two pairs of hitch pins 7, 7 and 8, 8 to permit the machine to be pulled from either end in order that the rotor 10 may turn at high speed (1,000 r.p.m.) in a direction counter to natural rolling (Fig. 1) for chopping mulch, stubble or grass, or, at low speed (250 r.p.m.) in the direction of natural rolling for mixing the chopped material into the soil. The high speed is obtained (Figs. 1 and 2) by connecting the tractor power take off via a cardan shaft 24 to the end 23 of a shaft 19 which drives half-shafts 15, 16 by means of bevel gears 17, and pinions 21, 22, shaft 20 and bevel gears 18. Each half-shaft 15, 16 has a toothed wheel 14 releasably fastened to it, the wheel 14 meshing with a pinion 13 rigid with a pinion 12 meshing with a pinion at the corresponding end of the rotor 10. The low speed is obtained by connecting the cardan shaft 24 to a stub shaft 27, and by interchanging toothed wheels 14 and 13 so that the pinions 11 are driven by pinions (not shown) rigid with the toothed wheels 14.
Patent GB-624669-A (GB)
Title: Improvements relating to indicating instruments
IPC: G01C17/08
Filed: 1947-02-10
Abstract: 624,669. Indicating-apparatus. LIQUIDOMETER CORPORATION. Feb. 10, 1947, No. 3823. Convention date, July 20, 1946. [Class 106 (iv)] An indicating instrument comprises a rotatable system supported in a housing below the level of liquid contained therein, the system comprising a float secured to a rotatable shaft mounted in bearings in a stationary supporting frame, a plurality of arms rigid with and extending radially from the shaft, and weights on said arms adjustable individually to balance the shaft in its bearings, the weights being selected as to size to adjust the buoyancy of the float. A spindle 19 is mounted in conical bearings 17, 18 in top and bottom parts 15, 14 of a frame 13 contained in a housing 11 with transparent cover 12. A pointer 16 is formed on the frame which also carries on brackets 22, three disc-like coils 23, 24 and one not shown. The coils move between two magnets 26, 27, fixed to the spindle 19, to which is also fixed a float 32, preferably of thin light metal, hermetically sealed and containing air. The housing 11 is filled with fluid, preferably oil, and three adjustable, screw-threaded weights 36 are carried on a spider on the spindle 19 and serve to balance the movement, can be varied to adjust the buoyancy of the float and due to the resistance of the fluid serve to damp oscillations of the shaft 19. The weight of the moving parts is thus taken off the bearings and so reduces friction. A scale may be marked on the float or on a band of soft iron secured thereto, when it will also have a shielding effect to eliminate errors due to hysteresis. The invention is shown applied to a toroidal transmitter, comprising a resistance element 39, wherein one end of each coil 23, 24, 25 is joined to a tap 41, 44, 48 while their other ends are joined together, and diametrically opposed wiper arms 53, 54, connected to the resistance element 39, to vary the voltage distribution across the coils 23, 24, 25, the resultant field co-operating with the magnets 26, 27 to turn the shaft 19 so that the scale 38 co-operates with the pointer 16 to indicate the position of the wipers 53, 54. The whole of the housing or only a part thereof may be transparent.