baber/WOPTO huggingface dataset:
Patent GB-1502090-A (GB)
Title: Means for discharging sponge iron from retorts
IPC: F27B1/21
Filed: 1976-04-15
Abstract: 1502090 Screw conveyers KINGLOR METOR SpA 15 April 1976 [28 April 1975] 15733/76 Heading B8A [Also in Division F4] Apparatus 10 for discharging sponge iron from an externally heated retort comprises a water cooled casing having an inlet 11 at one side disposed below the outlet of the retort, an outlet 12 disposed below and offset horizontally with respect to the inlet 11, and at least three parallel internally cooled worm screw conveyers extending between the inlet and outlet, each of said screw conveyers having a first tapered section of its length positioned below the inlet and a second cylindrical section of its length extending above the outlet. The tapered section of each worm screw is either frusto-conical or paraboloid. The ratio between the maximum width of the inlet 11 measured at right angles to the axes of the worm screws to the maximum diameter of each worm screw lies in the range 4À5 : 1 and 7 : 1. The screw conveyers are rotated by means of a fluid operated cylinder (29, Fig. 3, not shown) via a ratchet and pawl arrangement (24, 25, 26), gear-wheels (22) and chains (23). Not all the screw conveyers need be rotated in the same direction (see Figs. 4 and 5, not shown).
Patent GB-1118395-A (GB)
Title: Multi-level boat harbour
IPC: B63B9/00
Filed: 1967-04-05
Abstract: 1,118,395. Multi-level boat harbour. R. L. TOBEN. 5 April, 1967 [18 April, 1966], No. 15739/67. Heading B7S. [Also in Division E1] A multi-level boat harbour comprises an upper level or upper levels 16, 17 containing water, means for supporting the upper, level(s) above the water 24 in the harbour area, and elevating means by which a floating vessel can be transferred from the harbour water 24 to the water of an upper level. The elevator means comprises a shaft 19, the wall 20 of which has openings 26, 50, 52 for the passage of said vessel, which openings are closed by hydraulically operated sliding gates. Raising of the vessel is effected by pumping water into the shaft 20 (Fig. 6, not shown), or by means of a watercontaining cab 22 mounted on reciprocating'y driven members 28 for lifting and lowering the cab.
Patent GB-1045861-A (GB)
Title: Improvements relating to heat-treatment apparatus
Inventor: KEMP WILLIAM GEORGE
IPC: F23D14/00
Filed: 1964-04-16
Abstract: 1,045,861. Waste heat recuperators; indirect heating and cooling. WELLMAN INCANDESCENT FURNACE CO. Ltd. April 5, 1965 [April 16, 1964], No. 15741/64. Headings F4B and F4S. A spiral recuperator for a heat treatment furnace 10 comprises a central combustion air tube 18 surrounded in counter-flow heat exchange relation by two exhaust gas passages 20 and 21, the adjacent portions of said passages in the spiral being separated by heat insulation 24, 25 respectively, preheated air in passage 18 passing either to the frusto -conical burner 14 wherein fuel from pipe 13 and air are intimately mixed prior to combustion, or to exhaust gas frusto-cone 16, the exact proportion being controlled by flap valve 19. The combustion exhaust gas/air mixture burns round air entry tube 18 in block 12 thus utilizing the sensible heat in the gas to pre-heat the incoming combustion air which is blown by blower 22 from the centre of the spiral, the exhaust gas being extracted therefrom by extractor 23 connected to the ends of passages 20 and 21.
Patent GB-570024-A (GB)
Title: Improvements in and relating to the machining of oil grooves in the bearings of crankshafts
IPC: B23B29/02
Filed: 1943-09-27
Abstract: 570,024. Boring bars and heads. ALLARD, W. E. Sept. 27, 1943, No. 15786. [Class 83 (iii)] In a device for cutting oil grooves in crankshaft bearings,' a body 10, Fig. 2, has an arcuate portion 11 for attaching to a boring bar by means of a screw and a tapped hole 12 and carries a pivot 14 for a tool-holder 13 in which a cutter 15 is secured by a screw 16. A tail 17 on the holder lies within a U-shaped portion 10<1> of the body and is acted upon by a hand-adjusted screw 18 to cause the point of the cutter to bear on the work. In a modification, suitable for use on a power-driven boring bar, the body 10, Figs. 4 and 6, has a dovetailed guide for the tool-holder 13 which is pressed outwardly by one or more spring or like plungers 20 in the body, the depth of cut being limited by the head of a screw 24 adjustable in the body. The holder has holes 23 in any of which the cutter may be' mounted and a central plunger 26 in the holder has corresponding holes and serves to clamp the cutter when a nut 22 thereon is tightened. This nut also secures a plate 21 on the end of the holder to receive the pressure of the plungers 20. The Provisional Specification states that in the form shown in Figs. 4 and 6 a feed screw in the body may engage a half nut on the tool holder so that hand rotation of the screw will feed the cutter into contact with the work whereupon the connection between the screw and body 10 is released and a spring may act on the screw to feed the cutter into the work.
Patent GB-658585-A (GB)
Title: Recovery of organic compounds
IPC: C07C49/10
Filed: 1949-06-14
Abstract: Organic compounds, e.g. methyl ethyl ketone and tetrahydrofurane, are recovered from admixture with formals, acetals, and cyclic oxides difficult to separate therefrom by extraction and distillation operations, by a process comprising treatment with methanol in presence of an inorganic acid-reacting p  substance so as to hydrolyse the oxides and effect methanolysis of formals and acetals, removing the products of hydrolysis and methanolysis, and recovering the organic compounds from the residue.  The acid substance may be sulphuric acid, and the temperature may be 50-85 DEG  C. at atmospheric pressure, or 80-120 DEG  C. at 10-75 p.s.i. above atmospheric.  In an example, a fraction of the products of the vapour-phase air-oxidation of butane consisting mainly of tetrahydrofurane and its 2-methyl derivative, methyl ethyl ketone, and various formals, acetals, and oxides in solution in pentane is fractionated, the fraction boiling up to 75 DEG  C. is reacted with methanol in presence of sulphuric acid and neutralized with caustic soda.  The lower boiling ingredients are then stripped, the overhead product comprising methyl ethyl ketone, tetrahydrofurane and its 2-methyl derivative, acetone and methanol is mixed with water and extracted with pentane, the lower aqueous layer is withdrawn from the extractor, and the upper layer consisting of pentane, tetrahydrofurane, and methyl ethyl ketone is fractionally distilled. An apparatus of conventional type is described.
Patent GB-1217043-A (GB)
Title: Bearing combination comprising a spiral groove bearing and a rolling bearing
IPC: F16C21/00
Filed: 1968-04-02
Abstract: 1,217,043. Hydrodynamic and rolling bearing combination. SVENSKA KULLAGERFABRIKEN A.B. 2 April, 1968 [4 April, 1967], No. 15808/68. Heading F2A. A bearing comprises a spiral groove fluid bearing and a rolling bearing mounted so that each can take thrust, in which the distribution of thrust between the two bearings is determined by the pressure in the lubricant of the fluid bearing. In Fig. 1, a shaft 3 is supported by a ball bearing 5 and a spiral groove bearing composed of two flat bearing members, 1 and 2. The member 2 is mounted in a bearing housing 6 and has a pattern of shallow spiral grooves 11 (Fig. 2, not shown) extending from the outer periphery of the member to an opening 12 at its centre. Member 2 is axially displaceable in the housing 6 to an extent limited by the screw 8. When the shaft is at rest the entire thrust load will be borne by the ball bearing 5 with the lower member of the spiral groove bearing held in light contact with the upper member by the spring 13. On rotation of the shaft lubricant is pumped through the grooves 11 from chamber 15 to chamber 12. The lubricant continues through opening 10 to chamber 14, and also through passages 16, 17 and 18 and hole 21 to the chamber 15. When the speed of rotation of the shaft reaches a given value, the centrifugal force on the piston 20 will overcome action of the spring 19, and the piston will be thrown outwards, thereby preventing the passage of lubricant through the hole 21. Lubricant will then be forced from the chamber 12 to chamber 14 causing member 2 and also the shaft to rise to the extent limited by the screw 8. Lubricant is prevented from leaking out of the chamber 14 by an 0-ring 4. When the shaft rises the outer race of the ball bearing is shifted a corresponding amount in the housing. When the speed of the shaft drops so that the centrifugal forces on the piston are no longer sufficient to keep hole 21 closed, lubricant passes from chamber 14 via hole 10 and chamber 12 back to chamber 15, and the bearings resume their starting positions. In Fig. 3 is illustrated an assembly in which the shaft is guided radially by means of a roller bearing 23 which permit axial displacement of the shaft, and the initial thrust forces are borne by ball bearings 22. When the shaft is raised in the manner described above the inner race ring 24 is lifted out of contact with the balls. In Fig. 4 (not shown), the initial thrust is borne by a roller bearing adapted to accept thrust. Fig. 8 (not shown) illustrates an embodiment in which the spiral grooves are provided on both sides of a member attached to the rotating shaft, thereby allowing the bearing to function when rotating in either direction.
Patent GB-386219-A (GB)
Title: Improvements in metal pins for connecting holed metal members
IPC: F16B19/02
Filed: 1932-06-04
Abstract: 386,219. Rivets ; dowel-pins. WERNHARDT, K., 24, Waldstrasse, Berlin. June 4, 1932, No. 15833. [Classes 89 (i) and 89 (ii).] Metal plates a are connected by metal pins b which are provided with barbs d on their outer surfaces which are pressed up from the material of the pin body. In a modification each end of the pin may be formed with barbs of different sizes.
Patent GB-349300-A (GB)
Title: Improvements in joint boxes for electrical cables
IPC: H02G15/10
Filed: 1930-05-23
Abstract: 349,300. Cable couplings. BESTWOOD COAL & IRON CO., Ltd. and DRURY, H., 3, St. Albans Road, both in Bestwood, near Nottingham. May 23, 1930, No. 15865. [Class 38 (i).] The ends of cables 4 are joined in a box carrying on an insulating plate 9 terminals 11 to which the stripped cable ends 6 are attached. The armouring 8 is held between coned male and female members of glands outside the box which are tightened up by screws 12. Reference has been directed by the Comptroller to Specifications 276,117 and 314,046, [both in Class 38 (i), Electric couplings &c.].
Patent GB-1453019-A (GB)
Title: Flat cable
IPC: H05K1/02
Filed: 1974-04-10
Abstract: 1453019 Flat cable AMP Inc 10 April 1974 [23 April 1973] 15926/74 Addition to 1315907 Heading H1A A flat cable 10, comprises spaced parallel signal conductors 12, lying in the same plane, parallel to but spaced from a flat electrically conductive shield member 16, by a transparent dielectric 13 (e.g. polyethylene terephthalate), the shield member having elongate slots 18 arranged in rows and columns, the rows being opposite to and parallel to the length of the signal conductors, and the material of the shield member between adjacent columns defining shunt conductors 22. The width of the slots 18 can be altered to vary the capacitance between the conductors 12 and the shield 16. The shield member has a transversely extending aperture 24, Fig. 3, at one end of the cable tofacilitate connection between a connector and the contact pads (11), Fig. 1 (not shown), of the signal conductors 12. The width W of the shunt conductors is chosen so that its resistance is #0À1# and its length L is such that W/L#0À1, e.g. W= 20 mils, L = 250 mils for an upper frequency limit of 14À8 GHz (10<SP>9</SP> Hz). The cable can be used for CW or pulsed microwave power.
Patent GB-1422695-A (GB)
Title: Heat exchanger tube supports
IPC: F22B1/16
Filed: 1973-04-04
Abstract: 1422695 Heat exchange tube supports FOSTER WHEELER CORP 4 April 1973 [1 May 1972] 16071/73 Heading F4S A support structure, for a bundle of parallel spaced apart tubes 34 extending between annular tube sheets 30, 32 in a shell and tube heat exchanger 10, incorporates a plurality of segmental tube supports 55-58 each comprising a plurality of circumferential bars 60 supported on a plurality of radially extending bars 70, each bar 60 being on the circumference of one of a plurality of concentric circles and each having a plurality of recesses 72 spaced along the sides thereof so that facing recesses on adjacent bars 60 can grasp a tube therebetween. The circumferential bars 60, including the outermost bar 62, are securely fastened to the radial bars 70 by pins 80 which are welded into aligned holes 74, 76 in the bars 60 and 70, respectively. Inner and outer tie-rods 90 and 96 bolted to the tube sheet 30 extend through holes 73 at the ends of the radial bars 70 and are surrounded by vertical sleeves 94 and 100 in the region between adjacent tube supports. The uppermost tube supports 51-54 comprise solid plates formed with holes through which the tubes and tie-rods can pass. As shown, shell side fluid entering through inlet 16 flows upwardly over the top of an annular shroud 18 and then downwardly over the tubes 34 to finally leave through a bottom outlet 24. A seal 22 is provided between the shell 12 and the shroud 18. The lower portion of the tubes 34 are bent (not shown) to accommodate thermal expansion and contraction. Tube side fluid is fed through a central conduit 36 to a lower header chamber 78 containing an annular perforated distribution ring 40.
Patent GB-840888-A (GB)
Title: A new or improved device for automatically applying the stylus point of a gramophonepick-up into the first groove of a record
IPC: G11B3/38
Filed: 1956-05-24
Abstract: 840,888. Gramophones. THORENS S.A. May 24, 1956 [June 3, 1955], No. 16102/56. Class 40 (2). A device for positioning the stylus point 4 in the starting groove of a record comprises rollers 7, 14, carried by pivoted arms 6, 13, which have a co-operating pin and recess 17, 18, forming a locking device holding the rollers in the position shown in Fig. 2 so that when the pick-up 2 is first lowered manually or automatically on to the record the roller 7 holds the stylus point 4 off the record and, due to its inclination, causes outward movement of the pick-up arm 2 until the roller 7 drops over the edge of the record when the roller 14 engages the record to cause inward movement of the pick-up arm, the weight of which tilts lever 13 to release the locking device 17, 18, so that the stylus point is lowered gently into the starting groove, a spring 16 attached to lever 6 causing the rollers 7, 14 to be raised to a retracted, inoperative position. The rollers 7, 14 are returned to their operative position at the end of the record by pressing the end 22 of lever 6 upwardly, manually or automatically, to cause the locking-pin 17 on lever 6 to engage in the recess 18 of lever 13, the return of the parts to their inoperative position after release of the locking device being slowed down by the inclined surface 21 over which the pin 17 slides. A dash-pot device may also be provided to brake the return movement of levers 6, 13.
Patent GB-1020921-A (GB)
Title: Film strip feeding mechanism
IPC: G03B1/18
Filed: 1961-05-03
Abstract: 1,020,921. Gearing elements &c. J. J. RIGBY. May 2, 1962 [May 3, 1961], No. 16109/61. Heading F2Q. [Also in Division G2] Film-strip feeding mechanism for use in projection apparatus comprises a drive spindle having a disc mounted thereon carrying a series of circumferentially spaced pins and a solenoid operated ratchet arm for driving said spindle in stepwise manner. Two solenoid operated ratchet arms may be provided for driving the spindle in opposite directions. As shown, the core 6 of a solenoid 4 is pivotally attached to a ratchet arm 8 having a claw 9 for engagement in turn with pins 10 and a disc 12<SP>1</SP> for driving a spindle 13. The ratchet arm is returned under spring loading. The disc is resiliently held against unintentional movement by a spring detent device 22, 23. A second solenoid operated ratchet device 5, 6<SP>1</SP>, 9<SP>1</SP> is provided.. The spindle 13 is connected to film transport sprockets by way of a friction clutch whereby, with the disc 12<SP>1</SP> locked (as shown) by the notch 25, film at the picture gate may be framed by manual rotation of a knob on the end of the spindle 13.
Patent GB-434839-A (GB)
Title: Improvements in or relating to vaporisers for internal combustion engines
IPC: F02M21/10
Filed: 1934-06-01
Abstract: 434,839. Vaporizers. WILSON, N., General Garage & Motor Works, Elizabeth Street, Elland, Yorkshire. June 1, 1934, No. 16332. [Class 7 (iii)] In a casing a, divided into two parts by a partition a<3>, exhaust gases entering at a<1> pass through tubes a<6>, a<7> to heat mixture on its way to the inlet manifold f and from the casing a the gases pass to a second casing b where, in traversing a corrugated tube b<1> they heat air entering through a hit-and-miss valve b<4>. As shown, a valve c<1> may admit cold air directly to the carburetter d when a two-way valve e is supplying it with light fuel, but separate carburetters may be used for light and heavy fuels. In a modification, the partition a<3> is omitted and in the second casing the exhaust gases flow around tubes through which the air is drawn. The change-over from light to heavy fuel may be controlled thermostatically. Specification 5125/08, [Class 7], is referred to.
Patent GB-630227-A (GB)
Title: Improvements in assembling devices and applications thereof
IPC: F16B4/00
Filed: 1947-06-21
Abstract: 630,227. Rivets ; dowelling. PEUGEOT FRERES, LES FILS DE. June 21, 1947, No. 16465. Convention date, July 25, 1946. [Classes 65 (ii), 89 (i) and 89 (ii)] [Also in Groups XXII and XXIII] A two part rivet for the jaws of pliers &c. comprises a main part 15 the shank of which is drilled to receive the shank of the part 16 also drilled to house an element 7 of non- resilient, incompressible but deformable material. Axial pressure applied to the parts of the rivet acts through a steel plug 8 to upset the metal 7 and expand the shank of the part 16 to joint with that of the part 15. The element 7 may be of soft alloy, aluminium, copper, or lead, &c. In a modification the rivet has the second head applied as a separate part, and the end of the shank is reduced forming a shoulder against which a washer 21 seats. The reduced end is grooved at 25 and the head 24 is chambered out at 26. Axial pressure is applied through the washer 21 to the element 23, which upsets and fills the groove and undercut securing the head in place.
Patent GB-110958-A (GB)
Title: Improvements in Two-way Master Switches for Actuating Sets of Contractor-switches for Reversing Motors of Planning Machines and other Reciprocating Machines.
Inventor: STIRK GREENWOOD
IPC: B23D7/00
Filed: 1916-11-20
Abstract: 110,958. Stirk, G., Stirk, E., Stirk, R., and Stirk, J. G. Nov. 20, 1916. Systems for obtaining reciprocating motion.- In systems employing electric motor drives for planing and other reciprocating machines, the casing containing the reversing switch controlling cross-connected contactors, also contains a safety switch operated when the planer bed overruns its normal limits of travel. The reversing-switch arm A is keyed to the spindle 1 which carries the lever 2 provided with rollers 3, 4 to engage the dogs on the planer bed. The arm carries a contact N which bridges the contacts B<2>, D for one direction of travel and a contact O which bridges the contacts B<1>, D' for the reverse direction. When the switch has been operated, it is held closed by the poles R of an electro-magnet C. The circuit also includes the contacts P, P<1> normally bridged by the contact N' on the arm A<1> of the safety switch but opened if one of the dogs on the planer bed engages the roller 7 on the arm 6. The arm 6 is hinged at the point 8 and the position of the roller 7 can be adjusted by the screw 9. The reversing-contactors g, h, j, k are operated by coils E, E<1>, F, F<1> respectively and interlocking-switches L, M are operated by the contactors. When the arm A is moved to the position shown in Fig. 4, with the main switch S closed, the coils E E' are energized and contactors g, h are closed to supply the motor. With the arm A in its other position the contactors g, h are opened and the contactors j, k are closed to reverse the supply to the motor. When the arm A' of the safety switch is operated all the contactors are opened.
Patent GB-1139719-A (GB)
Title: Diaphragm spring friction clutches
IPC: F16D13/71
Filed: 1967-04-11
Abstract: 1,139,719. Friction clutches. SOC. ANON. FRANCAISE DU FERODO. 11 April, 1967 [9 Nov., 1966], No. 16591/67. Heading F2C. In a diaphragm spring clutch the cover-plate is formed with three circumferential series of axially staggered areas 25, 26, 27 for respectively fastening the reaction plate, for fastening the tangential straps holding the pressure plate, and for securing the diaphragm, the areas being arranged symmetrically in the order 25, 26, 27, 26, 25 ... As shown each of the areas 25 is provided with holes for the reception of bolts 15 securing the cover-plate to the flywheel (10), Fig. 2 (not shown). The areas 26 have equally spaced holes 29 for anchoring members 32 at one end of the straps 13, the other ends of which are attached to the pressure plate by members 31 in alignment with access openings 33 in the areas 27. The arrangement permits a reverse circumferential disposition of the straps 13. The areas 27 are coplanar with an inwardly extending domed portion 28 carrying the members 19 holding the diaphragm spring (18). An appreciable cooling gap (36) is provided between the peripheral edge of the cover plate and the flywheel.
Patent GB-1182123-A (GB)
Title: Improvements in or relating to combine harvesters.
IPC: A01F11/08
Filed: 1967-04-11
Abstract: 1,182,123. Combine harvesters. LELY DECHENTREITER MASCHINENFABRIK G.m.b.H. 11 April, 1967 [9 May, 1966], No. 16638/67. Heading A1F. A congestion-alarm is a self-propelled combine-harvester comprises a switch 25 mounted near the outlet of the cleangrain elevator operable to produce a visible or audible warning adjacent to the driving seat. The elevator 1 of the endless paddle type and has inspection-covers 13, 15 mounted at various points above both elevator-runs. The switch 25 is actuated by a spring-loaded pivoted plate 21 mounted between the upper elevator-pulley 8 and the auger 18 feeding crop into the graintank.