baber/WOPTO huggingface dataset:
Patent GB-1237836-A (GB)
Title: A method and apparatus for lamination stacking
IPC: H02K15/02
Filed: 1969-05-27
Abstract: 1,237,836. Stacking thin sheets of material. MASCHINENFABRIK OERLIKON. 27 May, 1969 [31 May, 1968], No. 26632/69. Heading B8C. In an apparatus for stacking horizontal laminations 11, such as are used in electrical machinery and transformer cores, individual laminations are fed by a conveyer belt, not shown, between guide plates 1, I<SP>1</SP> in a feed head and into the nip between driving rollers 2, 2<SP>1</SP> which drive the laminations forward past a guide piece 5 and above three air discharge nozzles 3 which partially float the laminations towards a stack assembly 11 where they are successively trapped by a brake 8, 9 pivoted to the head. When the forward edge of a lamination passes over the guide piece 5, .a limit switch 4 is actuated to close the contact 4a of a relay 15, Fig. 2, which opens contact 15a to de-energize a time delay 16 and which closes a contact 15b which maintains the circuit to a pair of relays 17, 18 as the contact 16a for the time delay 16 subsequently opens. Maintaining the circuit to the relays 17, 18 causes a pair of associated valves 6, 6<SP>1</SP> of a piston and cylinder unit 7, which controls the raising and lowering of the brake lever 8, to retain the latter in its raised position. When the trailing edge of the lamination leaves the switch 4, the contact 15b is opened to break the circuit to the valve relays 17, 18 so that the unit operates in an opposite direction and pushes a shoe 9 on the brake lever 8 down on to the upper surface of the discharged lamination. The contact 16a of the time-lag relay 16, which is now energized; closes after the elapse of a predetermined time to remake the circuit to the relays 17, 18 so that the brake lever 8 is raised out of the path of the next discharged lamination. Should the brake lever 8 fail to return to its uppermost position, a safety switch 10 operates to arrest the feed of laminations to the head 1. When a stack is complete the plate 12 is removed by a crane which holds the plate 14 by trunnions 13, 13<SP>1</SP>.
Patent GB-843728-A (GB)
Title: Improvements in polarised electromagnetic relays
IPC: H01H51/22
Filed: 1958-08-19
Abstract: 843,728. Electromagnetic relays. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 19, 1958 [Aug. 22, 1957], No. 26638/58. Class 38 (5). A bi-stable polarized relay has an armature assembly 7 with two fixed soft-iron strips 9, 10 clamped between two similarly polarized non- conducting permanent magnets 5, 6 which separate them from the ends 3, 4 of two yoke members 1, 2. Paper tape 20 which has been impregnated with a synthetic resin, is wound tightly around these parts and the resin is then hardened. The armature assembly is completed by a phosphor bronze strip 8 soldered to the strips 9, 10 and carrying the movable armature formed by soft iron strips 13, 14. The yoke members 1, 2 retain the operating coil 17 in position and their ends 11, 12 are held by a block 19 of insulating material for alternative engagement of contact surfaces 21, 22 thereon by the armature. The ends 15, 16 of the strips 9, 10 are arranged adjacent to the strips 13, 14 so as to form a low resistance flux path along the armature assembly 7. The contact surfaces of the armature and yoke may be covered with a layer of rhodium or silver. The assembly 7 and the separate yoke members 1, 2 are each connected to a respective terminal 27 and the relay is sealed in a glass tube 29 which may be evacuated or filled with an inert gas.
Patent GB-797865-A (GB)
Title: Alkyl aryl sulphite diesters and insecticidal compositions thereof
IPC: A01N41/02
Filed: 1956-08-31
Abstract: The invention comprises alkyl aryl sulphite diesters in which the alkyl esterifying group has 10 to 16 carbon atoms and the aryl esterifying group has a single benzene nucleus.  The esters may be prepared by first reacting the selected alcohol with thionyl chloride to form the alkyl chlorosulphinate and then reacting this with the selected phenol.  The first reaction is preferably carried out at low temperatures and with long standing.  The second reaction is preferably carried out in the presence of a base such as pyridine or dimethyl aniline and in a solvent such as benzene, xylene or solvent naphtha.  In an example tridecyl alcohol was reacted with thionyl chloride to give tridecyl chlorosulphinate which was reacted with p-tert.-butylphenol in solvent naphtha and in the presence of pyridine to give tridecyl p-tert.-butylphenyl sulphite.  Further, compounds specified are n-decyl phenyl or o-, m- or p-tolyl or p-isopropylphenyl or p-chlorophenyl sulphite, decyl (m.i.) m-tolyl or isopropylphenyl (m.i.) sulphite, tridecyl (m.i.) o-, m- or p-tolyl or tolyl (m.i.) or p-isopropylphenyl or isopropylphenyl (m.i.) or p-tert.-butylphenyl or hexylphenyl (m.i.) or p-methoxyphenyl or p-chlorophenyl sulphite, n-tetradecyl o-tolyl sulphite, n-hexadecyl isopropylphenyl (m.i.) sulphite, decyl nonylphenyl or dodecylphenyl or 2-chloro-4-methylphenyl sulphite, dodecyl 2 : 4-dichlorophenyl or 4-butoxyphenyl or 2-bromo-4-dodecyloxyphenyl or 4 - chloromethylphenyl or 4 - (21 - chloroethyl)-phenyl sulphite, and tridecyl 2 : 4 : 5-trichlorophenyl or pentachlorophenyl or 2 : 6-dichloro-4-tert.-butylphenyl sulphite. The suffix (m.i.) appearing after certain radicals in the compounds specified above indicates that a mixture of isomers was used in the preparation.ALSO:Alkyl aryl sulphite diesters in which the alkyl esterifying group has 10 to 16 carbon atoms and the aryl esterifying group has a single benzene nucleus (see Group IV (b)) may be used in insecticidal compositions. They may be applied as dusts or in liquid form as a solution, suspension or emulsion.  Specified diluents are, for dusts, mineral silicates, e.g. mica, talc, pyrophyllite and clays, and for suspensions, water.  In examples, the following compounds were dispersed in water with the aid of the reaction product of castor oil and ethylene oxide as dispersing agent and the resulting dispersions used as sprays for the control of spider mites and pea aphids: n-decyl phenyl or o-, m-, or p-tolyl, or p-isopropylphenyl or p-chlorophenyl sulphite, decyl (m.i.) o-, m- or p-tolyl or tolyl (m.i.) or p-isopropylphenyl or isopropylphenyl (m.i.) or p-tert.-butylphenyl or hexylphenyl (m.i.) or p-methoxyphenyl or p-chlorophenyl sulphite, n-tetradecyl o-tolyl sulphite and n-hexadecyl isopropylphenyl (m.i.) sulphite.  The suffix (m.i.) used in defining certain radicals in the compounds indicates that mixed isomers were used in their preparation.
Patent GB-396954-A (GB)
Title: Improvements in and relating to the frequency transformation of three-phase current
IPC: H02M5/00
Filed: 1932-09-26
Abstract: 396,954. Frequency changing. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Sept. 26, 1932, No. 26718. Convention date, Sept. 25, 1931. [Class 38 (ii).] Means for supplying power from a polyphase network N1 to a polyphase network N2 operating at a lower frequency comprises a transformer T1 having n star-connected groups of polyphase secondary windings a, b, c (n being the number of phases of the network N2 to be fed), each group being associated with a group of anodes in a rectifier G, Fig. 1, or with the anodes of n multianode rectifiers Ga, Gb, Gc, Fig. 2 (Cancelled), and a transformer T2 the primary phases of which are connected between the cathode of the rectifier or rectifiers and the star points of the n groups of secondaries of the transformer T1. The necessary sequence of operation of the various anodes is determined by grid control effected either through a commutator switching arrangement or by A.C. potentials. The phase voltages of the secondary windings of the transformer T1 may be made of such relative magnitudes that an approximately sinusoidal voltage wave is produced in the low frequency network N2. The Specification as open to public inspection under Sect. 91 suggested that the frequency could remain invariable during transformation. Reference has been directed by the Comptroller to Specification 388,711, (as open to inspection under Sect. 91 of the Acts.)
Patent GB-239075-A (GB)
Title: Improvements relating to perambulators, baby carriages and like vehicles
IPC: B62B9/18
Filed: 1924-11-08
Abstract: 239,075. Lines, W. Nov. 8, 1924. Springs, arrangement of; guiding vertical play; frame construction.-The body of a perambulator &c. is supported on the axle by means of equal and parallel links hinged to the body and to the wheel axles. As shown, the body 8 is connected to the axles 3 by two pairs of links 5 comprising metal strips hinged to plates 6 secured to the body and bent to surround the axles. Movement of the body is controlled by one or more springs 9, 9<a>, one or more snubbing strips 10 being provided. The springs, which may be coil or leaf springs, may be arranged between the body and upstanding handle member as shown, or, between the body and part 1 of the frame, or, coiled torsion springe may be embodied in the hinged connection between the links and axles. In the arrangement shown in Fig. 7, the link 5 is connected by a tension spring 19 to a projection rigid with the rail 1, or by a compression spring 20 to the rail 1. The axles 3 are passed through ears 4<b> of split lugs 4, Fig. 2, secured on the rails 1 by nuts 4<d> which clamp the ears 4<b> against shoulders formed by reducing the ends of the axles. The snubbing strips may be replaced by springs acting in opposition to the springs 9, 9<a>.
Patent GB-1105707-A (GB)
Title: Improvements relating to methods of and apparatus for the purification of gases and the making healthier of polluted air by ionisation
IPC: F24F3/16
Filed: 1965-06-24
Abstract: 1,105,707. Electrostatic precipitators. P. EBERT. 24 June, 1965, No. 26763/65. Heading B2J. [Also in in Division H1] Gases to be cleaned are passed through a conduit 56 containing a discharge electrode 42 which is arranged to revolve under the reaction of its discharge. As shown, three discharge electrodes 42 are mounted for rotation on bearings on a shaft 43 and supplied with current through a fluid filled cable 46 (see Division H1); alternatively, the electrodes can be mounted on a rotatable shaft. A washing device 57 supplies liquid to the walls 56 of the conduit for flushing deposits out through an outlet 58; the liquid may be water or a liquid capable of absorbing or combining with harmful gases. The discharge electrodes may take various forms. In Figs. 4, 7, 8 and 9 (not shown), the electrodes are provided with arms having discharge points. In Figs. 5 and 7 (not shown), the electrodes are in the form of propellers. The rotation of the electrodes may be assisted by a motor or compressed air supplied from a compressor 47, the air being discharged as jets, Fig. 13 (not shown), from orifices 51 provided on the arms of the electrode, discharged as blast-jets, Fig. 14 (not shown), from the shaft 43 or supplied to a turbine 54 Fig. 15 (not shown); the air serves to clean the electrodes. In Fig. 1 (not shown), the conduit is provided with an adjustable outlet 2 to increase the pressure of gases under treatment. In Fig. 10 (not shown), fans 30 pass air to be purified into the conduit 31 which is provided with discharge electrodes 31 and a metal lining 33 which can be removed for cleaning. Ionisation and separation may be assisted by vapours given off under high temperature; if the temperature in the conduit is insufficient for this purpose the flushing liquid may be preheated.
Patent GB-986156-A (GB)
Title: Control system for impact devices
IPC: B30B15/26
Filed: 1962-07-12
Abstract: 986,156. Drop hammers. CHAMBERSBURG ENGINEERING CO. July 12, 1962, No. 26802/62. Heading B3H. A control system for preselecting a sequence of strokes in an impact device, particularly a drop hammer, having means 25, 26, 35 for determining the stroke lengths, comprises means for counting strokes of one length and means operable after a predetermined number of these strokes for initiating a series of strokes of another length. A drop hammer of the kind described in Specification 671,886, has its tup 7 raised by elastic pressure fluid admitted to cylinder 4 below piston 5 under the control of a valve 10 actuated when the tup strikes a dog 25. During its upstroke the tup strikes a second dog 26 which exhausts the cylinder 4 causing the tup to fall. A further intermediate dog 35 may be selectively placed in the path of the rising tup for giving short strokes. The tup is held in its raised position by a clamp controlled by cylinder 32, when a treadle 34 is released. The tup may be set to perform a long stroke, followed by a predetermined number of short strokes and then a predetermined number of long strokes. During each upstroke a pressure switch 67, Fig. 2, is operated and this energizes a stepping relay ISR for moving a contact arm ISRO through one step. When contact ISRO reaches a position such as ISR3, which has been pre-set by an adjustable contact arm 70, a relay ICR is energized which opens contact ICR3 and de-energizes solenoid 68 whereby the short stroke dog 35 is spring retracted into an inoperative position. Stepping relay 2SR then continues to operate contact S2RO for a predetermined number of long strokes as set by contact arm 80. Finally realy SCR is energized whereby contacts 2CR4 are opened to deenergized solenoid 66 for actuating clamp cylinder 32 to retain the tup in its raised position. If a manual switch 87 has been closed, contact 2CR3 will cause the tup movement to terminate with a final short stroke. Another control circuit is described, Fig. 4 (not shown), giving a series of three different stroke lengths in any predetermined sequence.
Patent GB-431134-A (GB)
Title: Production of finely divided substances, dispersions and emulsions
IPC: B01F3/08
Filed: 1933-09-29
Abstract: 431,134. Emulsions and dispersions. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Sept. 29, 1933, No. 26858. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 3, 1934]. [Class 1 (i)] Emulsions and colloidal dispersions are made by passing the material to be dispersed and the dispersion medium through a tube at a velocity greater than the critical velocity and, if desired, under pressure. The tube may have a length of 3 inches to 6 feet and a diameter of 0À06 to 0À375 inches. Solid materials are preferably treated at a temperature above the melting-point, which may be reduced by the addition of other substances. The resulting colloidal dispersion should be rapidly cooled. Protective agents may be employed and numerous examples are specified, including glyptal resins, gall acids and their derivatives, methyl cellulose, sodium cellulose phthalate, calcium saccharate, sodium cellulose glycollate, derivatives of cholesterin, phosphatides, gelloses, and natural and artificial waxes, such as wool waxes. According to one example of procedure, two gallons of light engine oil and two gallons of a 5 per cent aqueous solution of sodium oleate are roughly mixed and forced under 300 lb. air pressure through a tube 40 ft. long and # inch diameter. Other examples relate to the treatment of melted paraffin and melted sulphur. The invention may also be applied to the production of water dispersions of ethyl-#-naphthylamine, chloro-2-butadiene-1: 3, phenyl-#-naphthylamine and butyraldehydeaniline condensation products, dispersions of mercury compounds and copper compounds in oil, and of sulphur in oil or glycerine.
Patent GB-907656-A (GB)
Title: Tunnel diode logic circuit
IPC: H03K19/10
Filed: 1961-07-25
Abstract: 907,656. Tunnel diode logic circuits. OLIVETTI & C. S.p.A. ING., C. July 25, 1961 [July 29, 1960], No. 26895/61. Class 40 (6). A logic circuit comprises an output tunnel diode to which may be fed an excitation current and a signal current, the latter being fed through a second tunnel diode of higher peak current, the conductive state of which is determined by the magnitude of the signal and which in turn determines the conductive state of the output diode. The circuit shown operates in a 3-phase cycle. During the first phase F 1  (Fig. 5) a current is applied at A and a signal current may be applied at one of the input terminals 2, 3 and 4. Assuming no signals are present, the current at A is insufficient to switch a tunnel diode T 2  to its high-voltage state so that during the second phase F 2  when a current is applied at B the current through T 2  and through resistor 12 is sufficient to switch a higher peak-voltage tunnel diode T 1  to its high voltage state and so produce an output at 1. During the third phase, all the currents are zero so that the output voltage returns to zero. If a signal is applied during the first phase, diode T 2  switches to its high voltage state and remains so during the second phase when the signal is removed. However, as the voltage at point 10 is now higher, part of the current from A is diverted through resistors 2, 3 and 4 so that the current at B in the second phase is insufficient to switch diode T 1  to its high voltage state and a lowvoltage or " zero " signal is applied to the output terminal 1. The circuit thus operates as a " NOR " element although other logical functions can be obtained by arranging for diode T 2  to be switched only in reponse to combinations of input signals. Diodes may be inserted in all the input signal connections if a shunt input resistor is provided or otherwise in series with all but one connection (Figs. 4 and 3, not shown). Similar circuits may be connected in cascade (Fig. 6, not shown), suitable delay being introduced into the voltages at A and B (as at A<SP>1</SP> and B<SP>1</SP> in Fig. 5) to allow for the delay in each circuit.
Patent GB-1462926-A (GB)
Title: Device  for chamfering the end faces of round tubes
IPC: B23B5/16
Filed: 1974-06-18
Abstract: 1462926 Chamfering tube ends P SOMMER 18 June 1974 27000/74 Heading B3T A device for chamfering the end faces of tubes of circular cross-section comprises a block having one or more circular parallel sided slots and a chamfering tool whose axis is parallel to the axis of the slot(s) and which is located at a position tangential to the slot or at the common tangent to the slots. In the embodiment described the block 1 is provided with two chamfering tools 5, 10 each located at the common tangent to a respective plurality circular parallel sided slots 2, 3 and 4 and 12, 13 and 14. The tools 5, 10 are adjustable axially parallel to the axes of the slots so as to control the size of the chamfer produced and may also be turned through 180 degrees to facilitate internal and external chamfers. The tools are clamped by respective screws 7, 11. The block may be provided with a handle 17 or means for mounting the block to a stationary part, the work being rotated in a respective slot to produce a chamfer.
Patent GB-779344-A (GB)
Title: Improvements in or relating to root crop elevators
IPC: A01D17/10
Filed: 1952-10-28
Abstract: 779,344. Root crop elevators. POLLOCK, W. B. Feb. 24, 1954 [Oct. 28, 1952], No. 27040/52. Class 78 (1). In apparatus for freeing root crops such as potatoes from foreign material such as stones and earth and loading them on to carts, the potatoes are fed to an endless belt 10 by which they are discharged on to a belt 11 and thence to a belt 12 provided with slats 23, finally falling down a shoot 28 to a cart. The belts 10, 11 tilted laterally to induce the separation of stones and earth from the potatoes, have slats 23 extending half-way across their width, whilst the belt 10 has baffle-plates 24, 25 and the belt 12 baffle-plates 26, 27. The whole apparatus is mounted on a framework having two off-side wheels 31 pivotable about shafts 32, and a near side wheel 34 mounted on a shaft 36 and provided with means whereby it may be locked in a position parallel to the wheels 31. The framework supporting the belts 10, 11 is adjustably supported on the main frame supporting the belt 12, whereby the angle of lateral tilt of the belts 10, 11 may be adjusted. The device is usually towed by a digger and driven from the digger through a flexible shaft (not shown) coupled to the shaft 51 leading to a gear-box 52 to which the belt driving shafts are coupled. Belt tensioning.-The adjacent terminal drums of the belts 10, 11 are mounted on shafts 46, 47, Fig. 8, carried by plates 45 supported on a shaft 44 rotatably mounted in a bracket 43 on a frame member 20. Tensioning of these belts is effected by pivoting the plates 45 about the shaft 44 to a suitable position and securing the plates by tightening nuts 50 on pins 49 on the plates extending through arcuate slots in the bracket 43. The shaft of the lower terminal drum of the belt 12 is supported by members 40 secured to collars 39 mounted on threaded rods 42 which may be rotated manually to adjust the position of the collars and effect tensioning or loosening of the belt 12.
Patent GB-600431-A (GB)
Title: Improvements in clamps for scaffolding tubes and like members
IPC: E04G7/16
Filed: 1945-10-16
Abstract: 600,431. Scaffolding clamps. ACROW (ENGINEERS), Ltd., and HOBBS, A. A. Oct. 16, 1945, No. 27072. [Class 20(ii)] In a swivel coupler for scaffolding, the members a, b, connected together by a pivot pin c, are each formed with a recess for receiving a scaffold tube, the part of the recess adjacent to the pivot being curved to the radius of the tube while the part remote from the pivot is more or less flattened. The axes of clamping screws e are offset to the outside of the axes of the scaffolding tubes so that they tend to force the tubes securely. into the recess. The members a, b may be formed as open-backed castings or pressings, each having outer ribs a<1> or b<1> and an intermediate rib a<2> or b<2>.
Patent GB-727073-A (GB)
Title: Improvements relating to guards for power presses
Inventor: JESSHOPE ARTHUR PORTER
IPC: F16P3/04
Filed: 1952-10-29
Abstract: 727,073. Machinery guards. JESSHOPE, Ltd. Oct. 26, 1953 [Oct. 29, 1952], No. 27142/52. Class 80 (4). A box-like guard structure b<SP>1</SP> adapted to surround the dies c of a power press or like machine is operated by a lever e pivoted at a<SP>2</SP> for moving to and from the closed position. When the guard is in the closed position, the lever e closes a switch f in the circuit of an electro-magnetic clutch (not shown) for operating the press. This clutch circuit is also under the control of the normal manual operating mechanism. Thus the guard must be closed before the press can be operated and raising of the guard stops the press.
Patent GB-1530228-A (GB)
Title: Apparatus for use in the production of a concrete rammed pile
IPC: E02D5/66
Filed: 1977-06-30
Abstract: 1530228 Casting piles L MULLER. 30 June 1977 27357/77 Heading E1H A concrete pile is produced by a ram rod 1, Fig. 1, which is surrounded by a sleeve 4 and both the rod and sleeve rest on a pile foot 3 of greater diameter than the sleeve, the sleeve being connected to the ram rod by shock absorbing means 9. The latter may be a spring or a wooden liner. An impact plate 2 and a gaiter 6 are provided. Hardenable material is introduced into a space 11 surrounding the sleeve through a tube 7, after which the ram rod and sleeve are withdrawn and concrete is poured into the central hole.
Patent GB-463444-A (GB)
Title: Improved method for depositing catalyst metals on metallic supports for effecting catalytic hydrogenation
IPC: B01J23/70
Filed: 1935-10-04
Abstract: Hydrogenation catalysts are prepared by passing the vapour of a metallo-organic compound over a metallic support heated to such a temperature that the catalytic metal is deposited on the support. Nickel, cobalt, and iron carbonyls and lead tetramethyl are mentioned as suitable compounds.  The support may be in the form of rolls of gauze or concentric wire coils arranged in a metallic tube.  The Specification as open to inspection under Sect. 91 describes also a method in which a superficially oxidized metallic support is coated with a paste of nickel hydroxide, to which small quantities of catalysts such as silver, vanadium, cobalt and cadmium have been added.  This subject-matter does not appear in the Specification as accepted.