baber/WOPTO huggingface dataset:
Patent GB-892242-A (GB)
Title: Grinding machines
Inventor: HUTCHINSON HENRY MALCOLM
IPC: B02C17/10
Filed: 1959-07-08
Abstract: 892,242. Tube mills. DISTILLERS CO. Ltd. June 13, 1960 [July 8, 1959; July 29, 1959], Nos. 23414/59 and 25936/59. Class 59. In a tube mill in which grinding occurs between at least one internal grinding member and the mill, the grinding member is made of magnetic or magnetisable material and is attracted towards the mill by means of a magnetic field which acts vertically downwards. The grinding member may be a magnet. The magnetic field may be supplied by a permanent magnet or by an electromagnet. As shown, a soft iron rod 5 fused into a silica jacket 6 is disposed within a cylindrical heatresisting glass tube 1 rotatable about its longitudinal axis and the rod 5 is attracted vertically downwards by means of a magnet 7 so as to cause it to bear heavily on the inner lower surface of the tube 1. The tube, which has a stopper 2, may be exhausted or filled with an inert gas e.g. nitrogen, if a readily oxidisable metal is to be ground. The tube may, alternatively, be made of plastics, fused silica, ceramic, or metal.
Patent GB-942056-A (GB)
Title: Improvements in or relating to forage harvesting units
IPC: A01D43/08
Filed: 1960-07-05
Abstract: 942,056. Forage harvesters. C. H. CHRISTIANSEN. July 5, 1960 [July 6, 1959], No. 23424/60. Heading A1F, A forage harvester is mounted on the side of a tractor and comprises rotating flails 5 in a housing 1 feeding cut crops up a shoot 2, 3 and into a container 31. The harvester is mounted on the rear axle 14 of the tractor by an arm 13 having a laterally extending member 13a to which is slidably attached a bar 15 from which the cutter assembly is suspended by chains 16a. These chains are attached to one arm 17 of a bell crank lever 19, the end of arm 17 being pivotally attached to the housing 1 whereby movement of the lever 19 along the ratchet 20 adjusts the height of cut. Bracing bars 21, 22 are incorporated, the bar 22 being adjustable by bell-crank lever 26 to adjust the tension in the chain drive from the power take-off of the tractor to the flails. The harvester can be adjusted laterally for distance from the tractor by sliding bar 15 along arm 13a and sideways tilt can be adjusted by the setscrew 15a acting to pivot bar 15. A spring 19a counterbalances the harvester to help movement of lever 19. The container 31 is carried on the lift links of the tractor and incorporates a manually operated catch whereby the bottom and rear of the container may be pivoted to an open position to discharge its contents.
Patent GB-1291689-A (GB)
Title: Method of producing 3-substituted or unsubstituted-2,2'-spirobis-(benzo f chromen)
IPC: C07D311/92
Filed: 1971-04-19
Abstract: 1291689 Production of 3-substituted or unsubstituted 2,2<SP>1</SP>-spirobis(benzo(f)chromen) FUJI PHOTO FILM CO Ltd and SANKYO CHEMICAL CO Ltd 19 April 1971 [4 March 1970] 23433/71 Heading C2C 2,2<SP>1</SP>- Spirobis - (benzo(f)chromen) or 3- methyl - 2,2<SP>1</SP>- spirobis - (benzo(f)chromen) is prepared by condensing 2-hydroxy-1-naphthaldehyde with acetone or methyl ethyl ketone in an aliphatic alcohol having 1-4 carbon atoms and in the presence of hydrochloric acid and or sulphuric acid as condensing agent; and effecting ring-closure of the resultant product by neutralization with a base.
Patent GB-626280-A (GB)
Title: Improvements in or relating to retractable undercarriages for aircraft
IPC: B64C25/14
Filed: 1947-08-25
Abstract: 626,280. Stud-and-socket fastenings. ELECTROHYDRAULICS, Ltd., and LAWSON, D. T. Aug. 25, 1947, No. 23464. [Class 44] [Also in Group'XXXIII] In a retractable aircraft undercarriage the folding strut comprises a drag link 7 and radius rod 8, connected by a pivotal joint 9 carrying a locking member 15 which engages with a recess 12 in the undercarriage leg when the latter is lowered, so that the link 7 may absorb the landing loads. The member 15 consists of a short cylinder with opposed flats 16, 17 and is connected by a crank arm 18 to the lower end of the rod 20 of an auxiliary jack 21, pivoted at 23 to the link 7, the piston 22 of the jack being loaded by a spring 24. Near the end of the lowering movement the flat 16 engages a projection 14, thus rotating the member 15 against the spring 24 to allow its entry into the recess 12, after which the spring 24 returns it to the engaging position shown in Fig. 2. To release the catch, pressure is applied to the top of the piston 22 through a connection 25, to compress the spring 24 and rotate the member 15 to allow of its withdrawal from the recess 12, Fig. 4.
Patent GB-1009231-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/02
Filed: 1963-12-11
Abstract: 1,009,231. Gas turbine plant; combustion chambers. N. TCHEN. Dec. 11, 1963, No. 23487/62. Headings FIG and F1L. An internal combustion engine comprises a casing 2 containing an intake chamber 9, a compression chamber 12, a combustion chamber 15, a reciprocating piston 5 for compressing a comburant alone or mixed with liquid fuel, ignition or fuel injection means 20, a turbine 31 and a duct 13, closed by a valve 14, interconnecting the compression chamber 12 and the combustion chamber 15. When piston 5 is moved to the right a comburant or mixture of comburant and liquid fuel is drawn through duct 10 and non-return valve 11 into intake chamber 9, whilst the gases drawn previously into compression chamber 12 are compressed until valve 17 opens at a predetermined pressure to admit the gases into combustion chamber 15. The mixture in combustion chamber 15 is ignited by igniter 20 or fuel is injected and the burnt gases open valve 19 at a predetermined pressure and pass through duct 18 to a turbine 31 which drives shaft 6 through a pulley and belt arrangement. Ring 24 rotates with shaft 6, screw 25 and groove 26 co-operate to reciprocate the piston 5, rotation of the piston being prevented by studs 30 which slide in casing 2. In a modification fuel is drawn past one-way valve 22 into chamber 32, where it is compressed by the flange 7 of piston 5 and passed through a duct controlled by one-way valve 23 into combustion chamber 15. The base 8 is provided with internal cooling water passages which co-operate with apertures in the hollow shaft 6 and with a connection in the casing 1.
Patent GB-870255-A (GB)
Title: Internal combustion engine
Inventor: MULLER KLAUS
IPC: F02B3/00
Filed: 1957-07-25
Abstract: 870,255. Fuel injection engines. HANOMAG A.G. July 25, 1957, No. 23542/57. Class 7(3). In a reverse-loop scavenged two-stroke engine with a precombustion chamber 7, Fig. 1, containing the fuel injector 9 and spark plug 10, of a volume sufficient to contain the volume of mixture necessary to meet idling requirements, the main fuel jet is directed through the precombustion chamber throat 8 into the rising scavenging air and an abutment in the precombustion chamber retains a portion of the injected fuel for forming an ignitable mixture near the spark plug. In Fig. 1 an inner part of the jet sprays through the neck 8 while an outer part sprays on to the inner wall of the neck 8 forming the abutment. The nozzle may alternatively be a multi-jet nozzle with a central bore to form the main jet and secondary bores directed towards the abutment. In Fig. 2 the spark plug is situated in a pocket below which is formed an abutment 14 on to which a secondary jet 13 is directed. As the amount of fuel injected is reduced, the proportion sprayed through the jet 13 increases.
Patent GB-402896-A (GB)
Title: A new or improved chimney-cowl
IPC: F23L17/02
Filed: 1932-08-23
Abstract: 402,896. Chimney and like shaft tops. MAYNER, E. W., 20, Bargates, Christchurch, Hampshire. Aug. 23, 1932, No. 23601. [Class 25.] A chimney or like cowl comprises a vertical shaft 1 around which is disposed a number of equally spaced tubular members 2 having open and upwardly and outwardly splayed ends 3 and 4, and a conical deflector 9 and wind shield 10 surmounting and partly enclosing the shaft and tubular members. The members 2 are attached to the shaft at their upper ends by means of a ring 5 having semi-circular recesses 6 and lugs 7 and at their lower ends by means of a corrugated ring 8 having the inner corrugations attached to the shaft and the outer to the members 2. An annular gauze 12 may be fixed between the upper rim of the shaft and the upper rim of the wind shield 10.
Patent GB-926976-A (GB)
Title: A vehicle-actuated track device
IPC: B61L1/10
Filed: 1961-06-29
Abstract: 926,976. Controlled non-linear inductors. SIEMENS & HALSKE A.G. June 29, 1961 [June 29, 1960], No. 23619/61. Class 40 (9). [Also in Groups XXX and XXXVI] A phase-sensitive transductor, for use in a railway signalling system (see Group XXX) comprises a pair of saturable toroidal transformers 116, 117 and a transfluxor 124 which supplies an output at terminals 13 when a signal applied at terminals 8 is in phase with a reference signal applied at terminals 14 and no output when the applied signals are in antiphase. The reference current J14, in phase with the reference voltage, is applied to the primary of transformer 117. This produces brief positive pulses 151 which are applied via rectifier 118 to a blocking winding 125 of the transfluxor and brief negative pulses 152 which are applied via rectifier 119 to a transmission winding 127. The current J8 produced by the signal at terminal 8 lags the signal voltage by 90 degrees, by virtue of the inductor 17, and produces brief positive and negative pulses 161, 162, respectively, in the secondary of transformer 116 which are applied to the transfluxor conrtol winding 126. When the applied signals are in phase the brief pulses are applied to the transfiuxor in the order 151, 161, 152 and 162 during each cycle and during this period the direction of magnetization of limb 128b changes twice. These changes produce two output pulses in output winding 128 which are lengthened in unit 129 and applied to output terminals 13. When the signals are in antiphase the brief pulses are applied in the order 151, 162, 152, and 161 and during each cycle of operation no change occurs in the direction of magnetization of limb 128b and no output is applied to terminal 13.
Patent GB-1173686-A (GB)
Title: Spark Gap.
IPC: H02B11/26
Filed: 1967-05-22
Abstract: 1,173,686. Surge diverters. OHIO BRASS CO. 22 May, 1967 [1 Dec., 1966], No. 23642/67. Heading H2H. The various stages of a surge diverter, whose circuit connections and method of operation are generally similar to those disclosed in Specification 1,173,685, are constructed in pairs comprising ceramic end plates 62, 63, each carrying a pair of main gap electrodes 72, 73 and having ridges and recesses which co-operate with corresponding ones in the faces of a ceramic centre plate 65 to form arcing chambers and chambers for the reception of the other components. Electrodes 73, 98 of each stage are electrically connected by a pin 107 which may be riveted over to hold the three plates together while their peripheral ridges and recesses are bonded and sealed by an epoxy resin. Alternatively, the plates may be held in a jig while the resin is cured, after which heads are formed on the pin 107 to make an electrical or an electrical and mechanical connection between the electrodes 73, 98. The chambers and components of the two stages are staggered by 180 degrees, each stage further comprising electrodes 79, 80 which constitute a pre-ionizer for the main gap and are formed of cylindrical bodies of resistive material to act as series resistors connected, with the electrodes 79, 80, across the main gap. A grading resistor 55 (or a capacitor) is also connected in parallel with the main gap and is housed with the electrodes 79, 80. Interior surfaces 93, 94 define an arc extinguishing chamber forming a continuation of the arc elongation chamber defined by the co-operating recesses in adjacent plates. Members 55, 79, 80 are carried by a ceramic member 77 resin-bonded to the end plate 63, which is identical in shape and construction to the other end plate 62. A four-stage unit is described, Fig. 3 (not shown), and comprises a magnetic blow-out coil sandwiched between two pairs of stages constructed as described above. Two such units are combined with non-linear resistors and further grading resistors, all of which are housed in a sealed insulator to form a surge diverter, Fig. 1 (not shown).
Patent GB-1371850-A (GB)
Title: Attachment device for straps or webbing
IPC: F16B2/22
Filed: 1973-05-21
Abstract: 1371850 Strap &c fastenings SEAGEE DESIGNS Ltd 21 May 1973 [19 May 1972] 23664/72 Heading E2A A device for attaching a strap or webbing to a support 20 comprises a generally rectangular plate 11 formed with a transverse slot or slots 12 through which may be rove and secured the end 13 of a strap or webbing 14, and provided with two, opposed, circularly curved, co-axial hook members 15, 16 the opposed inner faces of which are spaced apart by a distance equal to or slightly less than the internal diameter of the hook members. The device is offered up to the support as shown to engage the latter in the slot 17 whereafter the device is twisted to snap-fit the hooks on to the support.
Patent GB-633058-A (GB)
Title: Improvements in automatic weighing machines
IPC: G01G13/00
Filed: 1945-09-14
Abstract: 633,058. Automatic feed weighers. SIMON, W. G., and SIMON, F. R. Sept. 14, 1945, No. 23700. [Class 143] A n automatic feed weigher has a gravity main feed from the hopper to the pan, a supplementary electrically vibrated dribble feed conveyer for feeding from the hopper to the pan. and automatic means for inter. rupting said feeds upon predetermined successive descents o f the pan, the hopper comprising main feed and dribble feed compartments such t h a t the former is filled by overflow from the latter. Beet or other root crop is fed to a hopper 5 having a base 5c dividing it into a main feed compartment 5a and a dribble feed compartment 5b which fills first. The beam 1, comprising spaced arms and a sliding weight 9, operates contacts a, b and thereby a thruster 13 which opens a main cut-off valve 12 when the beam rises after a weighing, and shuts it when the beam again falls to a predetermined level. Simultaneously with the shutting, a dribble feed conveyor 7, constructed as in Specification 565,729 with a tray 14 reciprocating 2000-3000 times per minute with an amplitude of 1/32nd inch, is set working through contacts b, c. After a further predetermined fall of the beam, contacts d, e open to stop the conveyor and open a discharge gate 19 against the weight 21 through a link 22 connected to a quadrant 23 pivoted at 24. A notched lever 26 engages the quadrant to hold the gate 19 closed. A rod connecting the spaced arms of the beam 1 rocks a bell crank to move the spring arm contact b between fixed contacts a and c. A lever 39 carries a truck 39a resting on a bracket of the weigh pan 4 so that descent of the latter deflects a lever to rock shaft 37 and separate contacts d, e while rising of the empty pan resets the contacts. This resetting cannot be effective until closure of the gate 19 when quadrant 23 has rotated to the latched position and has retracted a bolt 47 from beneath the lever 43 on shaft 37. The rear arm 43<SP>1</SP> of lever 43 may be depressed as pan 4 descends, lever 39 then releasing the latch 26 of the quadrant.
Patent GB-1195202-A (GB)
Title: Device for Conveying Granular Material.
Inventor: LACEY GERALD JOHN
IPC: B65D88/72
Filed: 1966-06-13
Abstract: 1,195,202. Pneumatic conveyers. G. J. LACEY. 31 Aug., 1967 [13 June, 1966], No. 23714/69. Divided out of 1,195,201. Heading B8A. [Also in Division F2] Granular material is conveyed along the floor of a container towards a discharge opening, Figs. 1, 2 (not shown), by means of air flowing through openings in the walls of ducts laid on the floor of the container. The openings in the walls of each duct are in the form of inclined louvres 14 whereby the air flow is directed downwardly and towards the end of the duct.
Patent GB-282869-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/32
Filed: 1926-09-27
Abstract: 282,869. Fitzpatrick, H. D., (U.S. Slicing Machine Co.). Sept. 27, 1926. Cutting slices in succession. - In a slicing- machine, the slice-receiver comprises, in combination, a slice-receiving member adapted to oscillate about an upright axis and an inclined slice support movable across said member and oscillatable therewith, said receiving member having a peripheral flange for holding the slices on their support against the action of centrifugal force. As shown in plan in Fig. 1, the slicereceiving table 19 has an arcuate edge 20 whereby, when the table oscillates on its pivot 16, the table remains in close proximity to the reciprocating table 11. The table 19 is connected to the table 11 by a connecting-rod 24 and has an upturned flange which prevents the slices from being displaced by centrifugal force. The support 27 against which the slices are stacked is supported in an inclined position by a bracket 28 and is of partial-cone shape. Ridges 22 are provided parallel to the direction of movement of the support 27 to minimize the friction between the slices and the table 19. The slice deflector 33 is carried by a post 35 and is inclined, the top overhanging the bottom, to correspond with the slope of the support 27. The deflector has substantially horizontal ribs on its surface, and is flattened at its forward edge to nest closely against the knife edge. The lower portion of the deflector is curved to correspond with the arcuate edge of the table 19. A skin support 30, which extends on both sides of the cutting edge, is carried by a bracket on the machine base. In operation, the first slice is impaled on prongs carried by the support 27, the front edge of the slice falling down and resting against the flange of the table 19. The second slice is laid against the first, the edge resting against the flange. The support 27 is slid backwards over the table 19 by the pressure of the meat on the table and the action of the slice deflector.
Patent GB-388743-A (GB)
Title: Improvements in and relating to axle bearings for rail vehicles
IPC: B61F15/06
Filed: 1931-08-25
Abstract: 388,743. Vehicle-axle brasses. MATTHEWS, E. F., Elm Cottage, Watford Road, Wembley, Middlesex. Aug. 25, 1931, No. 23901. Convention date, Sept. 1, 1930. [Class 12 (i).] In a vehicle-axle bearing which is lubricated by lubricant which drips from edges 5 on to the journal 4, the bearing brass 2 is made of a copper alloy which rests directly on the journal. The brass 2 has an iron or steel strengthening shell 1, the adjacent faces of the brass and shell having interengaging grooves or tongues. Specifications 331,872, [Class 12 (i), Bearings &c.], and 384,367, [Group XXII], are referred to.
Patent GB-590498-A (GB)
Title: Process for producing dried milk powder
IPC: A23C1/00
Filed: 1944-11-30
Abstract: 590,498. Drying milk. GOLDEN STATE CO., Ltd. Nov. 30, 1944, No. 23967. Convention date, Nov. 25, 1943. [Class 49] In making dried milk powder, whole or skim milk is first converted by heating to powder having a moisture content above that required in the final product, and is then subjected, without substantial loss of heat, to a pressure belowthe vapour pressure of the moisture 'remaining in the powder in order to reduce the moisture content further and cool the powder. Whole milk, preliminarily de-aerated in the chamber 11 and concentrated in the evaporator 12 to 40-55 per cent. solids, heated in the heater 13 to 180‹-230‹F, and converted to powder of 3.5-5 per cent. moisture content in the spray drier 14 which is supplied through the conduit 16 with air at 175‹-185‹F ; this powder is separated from air in the centrifugal separator 19 and passed into the hopper 21 ; from the hopper the powder, at a temperature of 170‹-180‹F, is introduced into the chamber 24 which is then evacuated to a pressure of 0.25-0.10in. Hg, the powder being agitated by the stirrers 27 on the rotating rod 26; and a powder of 1.5-2 per cent. moisture content at a temperature of 110‹F. is subsequently discharged through the pipe 29.
Patent GB-277373-A (GB)
Title: Process for the drying of mixings of latex and filling materials
IPC: B29B13/06
Filed: 1927-09-12
Abstract: 277,373. K. D. P., Ltd. Sept. 10, 1926, [Convention date]. Latex, coagulating, treating and collecting.- Natural, preserved, concentrated, vulcanized &c. latex, or latex substitutes, with fillers, is dried without coagulation by continuously exposing new surfaces while heating the mass. For example latex paste is introduced between a pair of heated rollers or treated in the apparatus described in Specifications 243,016, 244,727, or 255,014. Specification 277,374 also is referred to. The Specification, as open to inspection under Sect. 91 (3) (a), mentions also the use of fluted rolls, slitting knives, oscillating plates, travelling bands, and the like for exposing fresh surfaces. This subject-matter does not appear in the Specification, as accepted, except insofar as it is covered by the Specifications referred to.
Patent GB-825897-A (GB)
Title: Apparatus for producing flattened tubular film of thermoplastic organic polymeric material
IPC: B29C48/10
Filed: 1957-07-30
Abstract: In film-making apparatus of the type comprising an annular die through which heated thermoplastic organic material is extruded to form a tubular air-inflated film and a pair of coacting driven rolls through the nip of which <PICT:0825897/IV (a)/1> the tubular film is passed and thereby flattened, the distance between the face of the annular die and the axis of the rolls is at least and preferably more than five times the width of the flattened film, the rolls are of hard material, the periphery of one or of each of the rolls is sheathed with resilient material, and the sheathed rolls are of an equal diameter which is greater than the width of the flattened film. As shown, the resilient sheath of each roll 3, 4 is built up of two separate layers, namely an inner coating 5a and 6a respectively of continuous homogeneous natural or synthetic rubber free from voids and an outer coating 5b and 6b respectively of aerated or foamed polythene.  The nip S between the cores of the rolls is made so narrow that the sheaths become powerfully compressed and reduced to less than half their original thickness.  At the same time, the easily-compressible outer coatings 5b, 6b transmit the resulting deformation pressure to the relatively incompressible inner coatings 5a, 6a, which yield to this pressure sideways in the direction of the double arrow P and thereby draw the flattened tubular film 2 tight in the direction of its width.  By this combined action, the film is laid completely flat free from wrinkles and folds.
Patent GB-477635-A (GB)
Title: Improvements relating to the electric heating of wash boilers and the like
IPC: D06F39/04
Filed: 1936-09-03
Abstract: 477,635. Electric water heaters. WHITE, H. A. N., and WHITE, M. E., (trading as NOLOS DISTRIBUTING CO.), WILLIAMS, W. G., and LLOYD, A. M. Sept. 3, 1936, Nos. 24114 and 26184. [Class 39 (iii)] [Also in Group XIII] Beneath a hole in the bottom of an externally heated washing-boiler is secured a sump-like vessel a carrying water-circulating means o extending from the boiler into the vessel, so that cool water passes centrally down into the latter and heated water rises adjacent to the heated side walls to be diverted sideways into the bottom of the boiler. Mica-insulated metalsheathed electric heating elements g are clamped to the sides of the polygonal vessel a by screwed studs h projecting through outer metal bands i. The water is circulated by a vertical central tube o with holes p, q adjacent its closed ends, and two perforated mushroom heads r, s at its upper portion. The lower vessel may be gasheated and has a funnel-shaped part surrounding it and extending out beneath the bottom of the boiler.