baber/WOPTO huggingface dataset:
Patent GB-1088556-A (GB)
Title: Liquid valve
IPC: E03D1/32
Filed: 1964-10-02
Abstract: 1,088,556. Spray-producers. ARMATURFABRIKEN TRIO A.B. Oct. 2, 1964 [Oct. 11, 1963], No. 40278/64. Heading B2F. [Also in Division F2] A float operated valve controlling the supply to a cistern includes (Fig. 1), a conical closure member 8 actuated by float 6 via rocker 7. The valve is positioned such that the envelope of water emerging therefrom is reduced to droplet form before it strikes the sides ofthe cistern or the surface of the water. This reduces the noise level of the filling operation. In Fig. 2, the supply passage 1 defines seat 10 and the recessed closure member 8 diverts the water outwardly past ribs (13). These ribs have a negligible effect on the emerging flow pattern.
Patent GB-1360357-A (GB)
Title: Electrical apparatus particularly electric current collection apparatus
IPC: H01R39/46
Filed: 1972-08-31
Abstract: 1360357 Current collecting GENERAL ELECTRIC CO 31 Aug 1972 [1 Sept 1971] 40326/72 Heading H2A Sparking at a brush/commutator contact is reduced by metal oxide varistor material, the material providing a low resistance current path at the moment a brush and commutator segment part contact, but rapidly increasing its resistance as the current level falls. In the embodiment of Fig. 2, the material is incorporated directly into a carbon brush 10 at its trailing edge 12, but in Fig. 3 (not shown) the material is independent (21) and separately spring loaded (22) to counteract differing wear rates. In the embodiment of Fig. 4, the entire brush holder 15 is formed of such material, and is maintained in contact with the commutator by a spring 17. In Figs. 5, 6 (not shown), the material forms only part of the holder (15a), or is separately attached to a holder (15b). The varistor material is a polycrystalline ceramic, e.g. zinc oxide with the addition of bismuth, aluminium, iron, magnesium or calcium oxides.
Patent GB-1120782-A (GB)
Title: Circuit arrangement for restoring multiple-armature magnetic latching relays
IPC: H01H63/42
Filed: 1965-09-22
Abstract: 1,120,782. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 22 Sept., 1965 [22 Sept., 1964], No. 40385/65. Heading H4K. In an exchange utilizing multi-armature relay selectors arranged in groups and wherein actuation of a particular cross-point involves the simultaneous operation of an X-co-ordinate and a Y-co-ordinate transistor pair, selecting for use and resetting after use of a particular cross-point is effected under the control of respective gates connected to each relay's C- wire. Fig. 2 depicts the case of a single relay having a plurality of armature operating windings KS 1 -KS 12  and a common resetting winding RS. Each group of such relays has an individual testing transistor A which, through its connection to the C-wires of each relay in the group, can determine, when its base is pulsed, whether or not there is a free relay in the group. The terminals Z 1 , Z 2  of each selecting gate K 1  (D 1 , D 2 , T 1 ) in the group are pulsed, whereby on coincidence of negative pulses on these terminals for a relay that is free (C-wire not at earth potential) transistor T 1  conducts and supplies a signal at its output a. The relevant X and Y transistors are then triggeredon so as to energize particular armature windings of the selected relay. (Two X transistors, one from each group X 1 -X 10  and X 11 , X 12 , are in fact operated for every cross-point selection.) The actuation of a cross-point causes a pair of contacts k 1 -k 10  and k 11 , k 12  to close so as to connect this relay's C-wire to the fault detecting gate circuit K 2 . If both contacts close a success signal appears at terminal b. If only one contact closes fault signals appear at a and b. If neither contact closes a fault signal appears at a only. Provided the test is successful, busying contact VS closes. At the end of the call, VS opens so that when A is next pulsed-on and Z 1 , Z 2  are pulsed simultaneously, an end-of-call signal appears at b. Transistor Y is then switched-on with A so as to apply a reset pulse to the relay's common release winding RS. The relays are of the type described in Specification 891,873.
Patent GB-1470140-A (GB)
Title: Sheet-pressing devices
IPC: B65B49/02
Filed: 1975-10-02
Abstract: 1470140 Laminates; folding edges FMC EUROPE SA 2 Oct 1975 [12 Nov 1974] 40407/75 Headings B5N and B5K A device 10 for pressing a thin sheet S to selected edges of a relatively thicker board B subsequent to projecting edge portions of the sheet being folded over opposed edges L.E. of the board and being secured to the board, comprises means 44, rollingly engageable with the opposed edges and a trailing transverse edge T.E. of the board during movement of the board relativeto the device for establishing pressure engagement with the edges and means 12 responsive to the presence or absence of the board adjacent the pressure-engaging means for moving the pressure-engaging means into or out of contact with the board edges. When conveyed on a conveyer to the device the leading flap and side flaps of the sheet may have been folded over and attached to the back side of the board with the trailing flap still in its extended position. Positioning means 12 may comprise a doubleacting actuator 14 operated by pressurized air fixed to Z-shaped bracket 16 and including projecting rod 18 fixed to block 20 having a cable 24 attached thereto by fastener 22. Cable 24 directed over idler pulleys 26 and 28 is wrapped around and clamped to post 36 mounted on lever 38 pivoted at 40 and rotatably mounting a stud 42 a PTFE roller 44 which makes rolling pressure engagement with longitudinal edges L.E. and trailing edge T.E. and which is adjusted by manipulation of nuts 46 to an elevation such that it does not wrinkle or distort the trailing flap. Roller 44 is urged into pressure engagement with longitudinal edges L.E. of the board by spring 58 having one end loop extending through a hole in lever 38 and the other extending through a hole in stud 60 which extends through a hole in the downwardly extending leg of bracket 16 and is provided with lock-nuts 61 so that the tension of the spring may be adjusted. When a sheet and board are present at the trucking station is sensed by a detecting device which is a limit switch 62 mounted by support 64 on to bracket 16 and comprises a roller 66 carried by bifurcated rod 68 which when reciprocated opens and closes the limit switch which is connected to an electrical circuit including a relay for energizing a solenoid operated valve for controlling operation of actuator 14. Extending rod 18 pays-out cable 24 so that the tension of spring 58 pivots lever 38 toward the edge L.E. of the board until the roller 44 comes into engagement therewith. As the trailing edge passes the roller, the roller is forced around the rear corner of the board to tuck the sheet against trailing edge T.E. When the board moves out of contact with limit switch 62 actuator 14 is operated to retract rod 18 and lever 38.
Patent GB-1003359-A (GB)
Title: A device for hauling excavators or like working machines
IPC: E02F9/00
Filed: 1963-10-14
Abstract: 1,003,359. Supporting excavators &c. for towing purposes. BERGMAN BORR A.B. Oct. 14, 1963 [May 20, 1963], No. 40410/63. Heading B7D. A carriage 17 for facilitating the towing of excavators &c. having endless-tracks, comprises one or more wheeled axles 20, two arms 18 extending at right angles from the axle 20 for engagement by means of hooks 19 with a stub-shaft 15 secured to the excavator frame, and a transverse beam 21 for supporting the excavator from below. A second stub-shaft 16 on the excavator carries a bracket 26 for attachment of a draw-bar 25 extending from a towing vehicle 24. In the case of the excavator shown, which includes a bucket 11 carried by arms 7 displaceable by hydraulic rams 8, the bucket 11 may be placed on the ground and the rams 8 utilized to raise one end of the excavator for insertion of the carriage 17. The bucket 11 may then be placed on the towing vehicle to raise the other end of the excavator, and may be locked in position during transmit by a rod 27 or hydraulic means extending between brackets 13, 14.
Patent GB-1087464-A (GB)
Title: Improvements in fasteners
Inventor: TURNBULL ALBERT EDWARD
IPC: F16B21/08
Filed: 1963-10-14
Abstract: 1,087,464. Stud and socket fastenings. ITW Ltd. Oct. 12, 1964 [Oct. 14, 1963], No. 40449/ 63. Heading E2B. A fastener comprises a shank, 2 to engage in a hole in a support panel 16, Fig. 6, and a head to engage in a hole in a second panel 28 to secure the second panel to the support panel, the head comprising a flange 4 of which the edge is notched at 24, Fig. 2, so that the head can be engaged with the hole in the second panel by inclining the head, inserting through the hole in the second panel one of the two corners at the notch and twisting the flange through the hole with a screwing action. As shown, the notch is V-shaped and has bevelled edges 4' to facilitate the screwing action. The shank 2 has oblique shoulders which engage with the edges of the hole in the panel 16, and a flange 18 surrounding the shank which seals said hole. In other embodiments only one of the notch edges is bevelled, or one edge is rounded, and the shank' consists of two or more prongs with their free ends spaced from one another. The notch may be formed as a segment as though by making a straight cut through the flange.
Patent GB-891649-A (GB)
Title: Herbicidal compositions
IPC: A01N47/20
Filed: 1960-11-25
Abstract: A herbicidal composition in the form of a finely divided water wettable powder comprises 70 to 95% by weight of isopropyl N-phenylcarbamate and finely divided precipitated siliceous pigment. There may also be included finely grounded clay e.g. attapulgites, kaolinites and montmorilloids, a wetting agent and a dispersing agent.  The pigment preferably has an average ultimate particle size below one micron preferably below 0.03 microns and has a surface area of 60-250 square metres per gramme.  The pigments contain at least 50% by weight of silica and the balance comprises one or more metal oxides such as aluminium, iron, calcium or other metal oxide in the form of precipitated hydrated finely divided calcium silicates, calcium potassium silicates, aluminium silicates, aluminium calcium silicates.
Patent GB-868984-A (GB)
Title: Improvements in or relating to devices for grinding substantially flat work-pieces, for example the slideways of machine tools
IPC: B24B7/14
Filed: 1958-12-17
Abstract: 868,984. Grinding. GESELLSCHAFT DER L. VON ROLL'SCHEN EISENWERKE A.G. Dec. 17,1958 [Dec. 17, 1957], No. 40757/58. Addition to 809,288. Class 60. A device for grinding substantially flat workpieces, for example the slideways of machine tools, so as to provide a curved surface thereon comprises a rectilinearly reciprocating work table for supporting a workpiece to be ground, a grinding wheel rotatably carried by a displaceable support, a reversible electric motor the direction of rotation of which is dependent upon the direction of displacement of the work-table, a cam adapted on operation of said motor to be moved in one direction or the other depending upon the direction of rotation of the latter and follower means adapted to co-operate with said cam and effective to control the displacement of said support, the arrangement being such that on operation of the device the grinding wheel will be caused to form a curved surface on the workpiece. The workpiece 2 on a reciprocating work table 1 is ground by a grinding wheel 18 carried by a support 17 mounted in a bracket 16 by an eccentric shaft 15. An electric motor 6 which reciprocates the work table also drives a generator 7 which supplies a motor 8 driving, through gears 9, 10, 11, 12, a cam 13 followed by a roller 23 on an arm 14 attached to one end of the shaft 15. An eccentric 19 can be operated to hold the roller 23 clear of the cam 13 and simultaneously to render the motor 8 inoperative. In a modification, Fig. 5, the support 17 has a screw 30 engaging a nut 29 which is rotated by the arm 14 having a roller 23 following the cam 13. Setting-up is done by a handwheel 31 on the screw 30. In a further modification, Fig. 4, a reciprocating cam 32 is used, this being reciprocated by the motor 8 through gearing 34 and a screw 33.
Patent GB-1006523-A (GB)
Title: Process for measuring high frequency constants of materials
IPC: G01N22/00
Filed: 1963-10-16
Abstract: 1,006,523. Electrical measurements. ELTRO-G.m.b.H. Oct. 16,1963 [Nov. 16,1962], No. 40799/63. Headings G1N and G1U. An apparatus for measuring high frequency constants of a material by means of a resonance measurement, such constants being the permeability, dielectric constant and loss of the material in a particular range of measuring frequencies, comprises an open ended waveguide 3, 4 whose cross section is such that the cut-off frequency for wave propagation is higher than the required range of measuring frequencies and into which the material 1 under test is introduced. A source of high frequency oscillation 2 is coupled to the conductor through the probe 7 and the resonances set up in the locality of the introduced material are detected at a receiver 9. The material is introduced as a sheet or film between the flanges 5 which are designed to be several wavelengths long to prevent loss of energy, and the apparatus permits of the carrying out of continuous measurement. The width of the gap between the parts 3 and 4 may be adjusted.
Patent GB-1513139-A (GB)
Title: Material handling apparatus
IPC: E02F3/96
Filed: 1974-09-19
Abstract: 1513139 Shovelling machines MASSEYFERGUSON - PERKINS Ltd 27 Aug 1975 [19 Sept 1974] 40828/74 Heading B8H A shovel-mounting U-shaped frame that can be detachably secured to a vehicle, e.g. a tractor, to extend around the front of the vehicle and, when supported on a ground surface by the shovel and a stand, of detachment of the frame from the vehicle when the vehicle is backed out of the frame has on each side of the frame attachment means of appropriate design to allow such operations being carried out. Each said attachment means comprises a pair of laterally spaced elements, e.g. rods 62, and apertured means, e.g. plate 72 defining sockets 73, for receiving said elements. The rods are mounted on the frame and the apertured means on the vehicle. Associated with at least one of the attachment means is a guide structure 88 for guiding the rod elements of that attachment means into the sockets of the associated apertured means when the vehicle is advanced into the ground-supported frame. Preferably a further rod and socket attachment means 52, 56 is provided between the frame and the vehicle on each side thereof ahead of the attachment means 62, 73. The rods 52, 62 may have tapered ends and the or each guide structure 88 may have flanges providing of both vertical and lateral guidance of the associated rods 62 into the complementary sockets 73. At least one of the rod members 62 is apertured as at 64 for receiving a locking pin.
Patent GB-875840-A (GB)
Title: Copolymers of methacrolein and their production
IPC: C08F20/62
Filed: 1958-12-18
Abstract: Substantially linear, high molecular weight copolymers of methacrolein which are soluble in organic solvents are produced by polymerizing a mixture of methacrolein, in an amount of more than 15% by weight, and a comonomer having vinylic unsaturation or having a , b -alkendioic unsaturation in an aqueous medium in which the monomers are soluble but in which the polymer is not soluble in the presence of a polymerization catalyst soluble in the polymerization medium. The comonomer may be methyl, ethyl, ethoxyethyl, propyl, butyl, hexyl, benzyl, octyl, iso-octyl or dodecyl acrylate or methacrylate, dimethyl, diethyl, methylethyl, dipropyl, propylmethyl or propylethyl fumarate or maleate, or a nitrile of one of the above acids.  The catalyst is preferably a redox catalyst formed by the reaction of soluble mutivalent salts in their higher valence states, e.g. by the use of a cobalt oxidecupric oxide mixture in a medium acidified with acetic acid, or of oxidizing agents wich as hydrogen peroxide and potassium persulphate with an alkali metal or ammonium hypophosphite, thiosulphate, sulphite, bisulphite or hyposulphite.  The reducing agent may also be used alone.  The polymerization is preferably carried out in the presence of a finely divided solid such as silica, titania, zirconia and alumina.  The reaction medium preferably comprises water and an organic solvent such as methanol, ethanol, a butanol or isopropanol, and the polymerization is preferably carried out in a slightly acid medium, e.g. at pH 4,4.  The polymers are obtained in aqueous dispersion which is then coagulated, and have an inherent viscosity, as determined on a 0,5% solution in pyridine at 35 DEG C., of 0,3 io 3,0.
Patent GB-1074504-A (GB)
Title: A column for greatly accelerated caromatographic processes
IPC: G01N30/60
Filed: 1964-10-07
Abstract: 1,074,504. Lower end fitting for chromatography column. CESKOSLOVENSKA AKADEMIE VED. Oct. 7, 1964 [Oct. 8, 1963] No. 40884/64. Heading B1X. [Also in Division E2] A chromatography column 1 has its inner space terminated at its lower end by a piece of porous material 2, for example sintered glass or porous polytetrafluoroethylene, an elastic disc 4, arranged beneath the porous material, having an axially extending capillary hole in its centre and grooves or scratches on its upper surface. The porous material 2 and disc 4 are placed in a sleeve 3 of elastic material, for example silicone rubber, which is compressed under controlled pressure in casing 5 by the column 1, the column being mounted in a lower clip and an adjustable upper arranged on a rod (20). Another liquid, or gas bubbles may be introduced into the eluate by means of capillary inlets in casing 5 (Fig. 2 not shown). The upper clip is divided into an upper part which may be tightened on the rod (20) and a lower part having a movable jaw (26) which holds the column, the jaw and the stationary part of the clip being joined by bridges (281 or 291) which function substantially as a jointed link between the jaw and the stationary part of the clip. Above the upper clip on rod (20) may be placed a third clip (33) to hold the top closure 32 of the column in position (Figs. 6 and 7 not shown). The thermostatting jacket 13 may be used to support a long thin column by the use of inserts across the annular space between the column and the jacket.
Patent GB-1160606-A (GB)
Title: Improvements in Overhead Conveyors
Inventor: MILBURN-BATHGATE CHARLES
IPC: F16G13/14
Filed: 1967-09-07
Abstract: 1,160,606. Endless chain conveyers. C. M. BATHGATE. 27 Aug., 1968 [7 Sept., 1967], No. 41001/67. Heading B8A. In a chain assembly for use in an overhead conveyer, and comprising a plurality of interconnected substantially closed links 9, and support members 15 from which articles to be conveyed may be suspended, at least one of the support members passes through, and is flash welded to, an inner surface of one of the links 9. As shown, axles 11 supporting the members 15 are fused to inner surfaces of the links 9 and have rollers 12 at their extremities for running along a track 3. Alternate axles 11 are vertical and horizontal . After welding, the links are elongated to the dot-dash line shape (Fig. 3) so that the weld is held firm between opposite parts of the link.
Patent GB-1079601-A (GB)
Title: Signal repeating device
IPC: G08B13/24
Filed: 1964-10-08
Abstract: 1,079,601. Piezo-electric filters; reflectors. GENERAL ELECTRIC CO. Oct. 8, 1964 [Oct. 30, 1963], No. 41143/64. Headings H3U and H4A. A device for repeating received signals which sweep over a band of frequencies comprises a plurality of piezo-electric elements (not shown) connected in parallel in a cross-piece 5 to an encircling receiver antenna 7, the resonant frequencies of the elements being approximately 10 kc/s. apart. The antenna 7 consists of several turns of insulating copper wire wound about a metal ring 9, this assembly being encapsulated, the cross-piece 5 being of high impact polymer and having recesses for receiving the piezo-electric elements. Each piezo-electric element has an equivalent series resonant circuit, Fig. 2, comprising L1, C1 and R, the L to C ratio being very large. The antenna 7 comprises an inductance L2 in common with each equivalent series resonant circuit. The capacitance Co of two silver electrodes deposited on both faces of the piezoelectric element is in parallel with the circuit L1, C1, R, and provides an anti-resonant circuit. The circuit consisting of L1, C1, R, Co and L2 has a low impedance resonance at a frequency determined by the piezo-electric element and a correspondingly high impedance anti-resonance at a frequency determined by the inductances L1, L2 and the capacitance Co, the resonant and anti-resonant frequencies of each element being separated by 2 kc/s. Such small separation results in a discrete switching action from one piezo-electric element to the next one as the variable signal sweeps through the band of frequencies.
Patent GB-1480697-A (GB)
Title: Process for the preparation of concentrated azo dyestuff solutions
IPC: D21H21/28
Filed: 1975-10-08
Abstract: 1480697 Concentrated azo dyestuff solutions BAYER AG 8 Oct 1975 [29 Oct 1974] 41245/75 Heading C4P 10-50% aqueous or aqueous-organic solutions of an azo dyestuff containing an ionic group, substantially free from electrolyte, are prepared by a process in which during the diazotization and/or coupling reaction the ions which do not belong to the dyestuff salt and which lower the solubility of the dyestuff are precipitated from the reaction mixture as a sparingly soluble salt and separated off. In a preferred process, a nitrate is used the cation of which forms a sparingly water-soluble salt with the anion of the acid used to liberate the nitrous acid; also agents which improve the solubility of the dyestuff are added to the solution obtained. Examples given are sulphuric acid as acid with the sulphate precipitated with Ca(OH) 2 , also sulphuric acid with Ca(NO 2 ) 2 , also hexafluosilic acid with NaNO 2 . The solutions are used for dyeing natural and synthetic fibres, such as wool, silk, leather, polyamides, acid modified polyesters and polyacrylonitrile, and cellulose, especially paper.
Patent GB-1429169-A (GB)
Title: Manufacture of organic nitriles
IPC: C07C253/00
Filed: 1972-09-07
Abstract: 1429169 Nitriles by catalytic hydrocyanation of olefins IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Aug 1973 [7 Sept 1972] 41487/72 Heading C2C A process for the manufacture of organic nitriles comprises reacting an olefin with hydrogen cyanide in the presence of a catalytic amount of a Group IB metal salt and an organic acid. The metal salt is suitably a copper, silver or gold sulphate, phosphate, halide or organic acid salt. The organic acid is suitably acetic, chloroacetic, trichloroacetic or benzoic and is preferably used in stoichiometric amount in relation to the metal salt. The process is suitably carried out at a temperature of from 50 to 120 C. in the presence of a nitrile or hydrocarbon solvent using a molar ratio of olefin to HCN of from 2 : 1 to 1 : 4. Examples describe the conversion of butadiene to 3-pentenenitrile.