baber/WOPTO huggingface dataset:
Patent GB-1422087-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02B53/04
Filed: 1974-03-19
Abstract: 1422087 Rotary internal combustion engines AUDI NSU AUTO UNION AG and WANKEL GmbH 19 March 1974 [22 March 1973] 12083/74 Heading F1F A twin-rotored internal combustion engine of the trochoidal type includes lubricating means for each cavity 5, the lubricating means comprising a lubricant passage 14 which leads into a passage 10 which communicates with the atmosphere and leads into a bore 12 for a tie-rod 4 and thence to a trough 13 in the end and intermediate plates 2, 3 which open into cavity 5 at a point where each chamber undergoes the induction phase, flow through passage 10 being controlled by a rotary throttling valve 19, Fig. 4, connected to the spindle 20 of a throttle valve in the induction line 24. Valve 19 is located between an air inlet 25 leading from the air inlet line of the carburetter and an outlet 26 leading to passage 10. For light running, only aperture 27, Fig. 5, registers with passage 26 and then as engine speed increases and valve 20a opens up, opening 28 co-operates with passage 26 to give a progressively increasing air-flow. Air sucked in through passage 10 to the cavity 5 draws lubricant along the passage walls therewith. The troughs 13 can be shaped to direct the lubricant  against the peripheral wall 9 of cavity 5 Fig. 2, (not shown), and an alternative throttling means to valve 19 also described Figs. 6 and 7, (not shown).
Patent GB-741108-A (GB)
Title: A new or improved process for the recovery and separation of metals
Inventor: VANDERVELL CHARLES ANTHONY
IPC: C22B7/00
Filed: 1953-05-01
Abstract: Copper or copper-base alloy is recovered from mixed or composite scrap containing also ferrous metal by dissolving the copper-base material in a molten metal consisting wholly or mainly of tin, aluminium or zinc at a temperature below the melting point of the copper-base material.  Where the solvent is also a constituent of the copper-base alloy to be recovered the resulting solution may be adjusted to bring it back to the composition of the original copper-base alloy.  The Provisional Specification describes also the use of lead as a solvent for the copper-base material.  Specification 671,187 is referred to.
Patent GB-1115575-A (GB)
Title: Power transmission systems for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: B60K17/34
Filed: 1966-03-18
Abstract: 1,115,575. Transmission arrangement. VAUXHALL MOTORS Ltd. 9 March, 1967 [18 March, 1966, 11 Nov., 1966], Nos. 12176/66 and 50714/66. Heading B7H. [Also in Divisions F1 and F2] A motor vehicle transmission arrangement comprises an engine (not shown) located adjacent a final drive unit 10 for driving a pair of road wheels, transfer gearing 16, 20 located between an engine driven clutch 12 and change-speed gearing 24, the gearing 24 driving the final drive unit 10 directly or through an interaxle differential 52 via a first output drive shaft 60. A second output drive shaft 64 from the differential may drive a second pair of road wheels through a second final drive unit. The axes of the transfer gearing 16, 20 are convergent away from the clutch. The gearing 24 is of the constant mesh type with double-ended synchromesh or dog-tooth clutches 38 and an idler gear 40 of a reverse gear train. In an alternative embodiment the second final drive unit may be on the side of the transfer gearing remote from the clutch and driven by the second output drive shaft which passes through a hollow main shaft of the gearing 24. Alternatively the first final drive unit may be located in space between the gearing 24 and the differential. All the component parts of the transmission are in a common casing 48.
Patent GB-489402-A (GB)
Title: Process for the treatment of cellulosic textile materials
IPC: D06M11/60
Filed: 1937-04-30
Abstract: Cellulose material is treated with a cuprammonium salt in aqueous ammonia, and subsequently treated with an agent for activating the previous solution, e.g. caustic soda.  The activating treatment is preferably effected below room temperature.  Pattern effects may be produced by resist - printing before the cuprammonium is applied, the resist treatment may be combined with a dyeing treatment; the fabric is soured and washed and may be finally overprinted with a dye. Suitable copper salts are the chloride, nitrate, cyanide, chlorate, bichromate, formate, acetate, oxalate or citrate.  In an example, cotton goods are fed under slight tension into a solution comprising copper sulphate and ammonia, lightly squeezed, then passed into caustic soda solution of 50 DEG  Tw. preferably at 38 DEG  F., squeezed, stretched, soured and washed.  The cloth is immersed in each bath for 3-8 secs.
Patent GB-860864-A (GB)
Title: Torque operated variable reference switch for disabling the altitude controller of an aircraft
IPC: G05D1/04
Filed: 1959-04-13
Abstract: 860,864. Automatic control systems for aircraft. COLLINS RADIO CO. April 13, 1959 [July 31, 1958], No. 12473/59. Class 38 (4). In an aircraft altitude automatic control system, variation of an input signal to the elevator servo system is effected through epicyclic gearing and consequential slight movement of a planet-wheel against the resistance to movement of an additional gear with which it engages disables the control system which normally maintains constant altitude. As shown, signals from the pitch pick-off of a gyro-vertical 26 and signals from a pick-off 34 associated with an altitude-responsive bellows 31 normally control an elevator servo-system 25 to maintain an aircraft in level flight at a constant altitude. When it is desired to change altitude a pitch control knob 2 is operated to adjust, through gearing 5, 10, 11, a potentiometer 12 which then applies a reference signal to the elevator servo system to produce climb or dive. Under these conditions, resistance to movement of a gear 13 causes a gear 6 to act as a planet and rock an arm 7, on which it is mounted, against one of two stops 9, thereby opening a switch 3 to disengage an electromagnetic clutch 32 so that pick-off 34 returns to its neutral position, eliminating automatic altitude control. When the new desired altitude is reached a pushbutton 24 associated with a self-holding relay 21 is operated to re-engage automatic altitude control. Long-term altitude errors are effective to adjust potentiometer 12 through a servo-system 41 and gear 13. When the automatic pilot is completely disengaged by means not shown, a switch 40 is changed over so that servo-system 41 maintains potentiometer 12 in a position corresponding to aircraft attitude in readiness for re-engagement of the automatic pilot.
Patent GB-557827-A (GB)
Title: An improvement in or relating to wire-drawing machines
IPC: B21C3/14
Filed: 1942-09-04
Abstract: 557,827. Drawing wire. BARRON, C. A., and BARRON, H. D. Sept. 4, 1942, No. 12497. [Class 83 (iv)] Relates to wire drawing machines of the type in which a die is traversed in a circular path about a stationary drum from which it passes continuously to a receiving member and consists in means for leading in the wire and in cooling means for the parts. Wire b passes through a fixed tube a acting as a soap box and having a plate c with restricted opening c<SP>1</SP> through which the wire passes over a bell d to an opening e<SP>1</SP>, in a drum e<SP>2</SP> rotatable on the plate c, and thence over pulleys i<SP>1</SP>, i2, carried by an arm is from the flange i of a drum i<SP>4</SP> fitted with a driven toothed wheel j, to a die m carried by a holder on the flange i. From the die the wire passes to and is wound round a fixed drum f. When enough turns have accumulated to reach the wire b issuing from the opening e<SP>1</SP>, the free end of the wire is passed to the other side of the issuing wire which then passes off one turn each revolution on to the collector p. The arm i<SP>3</SP> may carry a curved tubular extension entering the hole e<SP>1</SP> to form a positive drive for the drum e<SP>3</SP>. The wire in this case passes through the tubular extension. A fixed sleeve g surrounds the tube a forming an annular space through which coolant flows from a reservoir in the frame t by holes t<SP>2</SP> and also passes by holes g<SP>2</SP> to the interior of the drum f. The drum i' is also hollow to serve as a reservoir for coolant and a rib on it causes the coolant to circulate in a passage round the die holder as the drum rotates.
Patent GB-415856-A (GB)
Title: Improvements in radio receiving apparatus
IPC: H01F21/04
Filed: 1933-04-29
Abstract: 415,856. Inductances. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea, and BRADFIELD, G., 161, Hainault Avenue, Westcliff-on-Sea. April 29, 1933, No. 12507. [Class 37.] A coil assembly adapted to be used as the preselector band pass coils of a radio-receiver comprises a long wave primary coil LP, two long wave secondary coils LS1, LS2, a medium wave primary coil SP, and two medium wave secondary coils SS1 and SS2, one of the long wave secondary coils LS2 being situated between the medium wave secondary coils SS1, SS2. When the coil assembly is used for medium wave reception, the long wave coils are short-circuited, the coil LS2 then serving as a screen to reduce the mutual inductance between the coils SS1, SS2, thereby reducing the overall length of the assembly. In an alternative arrangement the long wave primary coil LP may be substituted in part at least by a portion of the long wave secondary coil LS1.
Patent GB-1108304-A (GB)
Title: Improvements in ophthalmometers
IPC: A61B3/10
Filed: 1965-03-24
Abstract: 1,108,304. Ophthalmometers. GUILBERT ROUTIT & CIE. March 24, 1965 [March 25, 1964], No. 12513/65. Heading G2J. An ophthalmometer includes a set of two targets which are arranged to be projected on to the cornea of a patient's eye, the first target comprising a rectangular window 3 in which is traced a reference line 4 at right angles to a baseline 5 formed by one edge of the window, and the second target comprising a rectangular window 13 in which is traced a dioptric scale 14 along a base-line 15 formed by one edge of the window 13, the targets being mounted so that the image received through the ophthalmometer eyepiece after reflection at the cornea, appears as the continuous base-line with the reference line 4 registering with the scale 14. Each target further comprises two fiducial lines, 7, 9 or 21, 18 parallel to and equally spaced from the base-line 5 or 15 respectively. The apparatus is rotatable about its optical axis so that a reading may be taken with the ophthalmometer in each of two mutually perpendicular positions. Any difference between the two readings indicates the degree of astigmatism of the eye under examination.
Patent GB-234481-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B1/12
Filed: 1925-05-14
Abstract: 234,481. Schneebeli, H. May 22, 1924, [Convention date]. Two- and four-strokecycle engines. - Clearance spaces 6, 7 of differing volumes are provided in adjacent cylinders 1, 2, such spaces being in permanent communication by a passage 8 of capillary section, and, for the great part of the piston strokes, by way of ports 10. Spontaneous combustion takes place in the smaller space 7 and effects ignition in the larger space 6. Either cylinders or pistons of differing length may be used to produce the differing clearances.
Patent GB-1145604-A (GB)
Title: Safety valve for hydraulic systems
IPC: F15B13/02
Filed: 1967-03-17
Abstract: 1,145,604. Power steering. DANFOSS A/S. 17 March, 1967 [26 March, 1966], No. 12722/67. Heading B7H. [Also in Division F2] A power steering circuit includes an hydraulic actuator 9, 10, 11, connected to the steered wheels, a control unit 4 connected with a steering wheel, a pump 3 driven by a motor 2, a reservoir 1, and a safety valve 18, see Division P2, to relieve fluid pressure from either one of conduits 16 and, 17 leading to the actuator, when an external force acts upon the steered wheels, e.g. if they strike an obstacle. The valve has a single ball closure (23), Fig. 2 (not shown), loaded by a spring (24), and is arranged, when a pressure builds up in one conduit, to relieve to the other or to the reservoir 1.
Patent GB-592145-A (GB)
Title: Improvements in and relating to water-cooled fire grates
IPC: F23H3/02
Filed: 1945-05-22
Abstract: 592,145. Hot-water boilers. BAUER, F. W. May 22, 1945, No. 12776. [Class 64 (i)] [Also in Group XI] An open fireplace grate is formed partly of water tube bars running substantially from front to back of the grate, and partly of solid bars, both of which support the fuel, in which the water tube bars being all connected to a front header and continued vertically up the rear wall of the fireplace, terminate in a rear header to which an outlet is connected. In a construction for a coal burning fire, the grate is formed of mild steel tubes comprising a rear header d, side tubes a' following the contours of the fireplace to form a front header a and tubes b extending backwards and upwards to connect the front header a and rear header d. Cold water connections f in the front header and an outlet g in the rear header are provided. Sealing plugs may be provided in the front header, at its extremities and opposite the ends of the tubes b.
Patent GB-879896-A (GB)
Title: Grease compositions
IPC: C10M169/00
Filed: 1960-04-11
Abstract: A lubricating grease consists of a lubricating oil gelled with an inorganic colloidal gelling agent bearing on the surfaces thereof at least 25% by weight of asphaltenes (based on the gelling agent) which are defined as the non-mineral constituents of petroleum residues remaining insoluble in petroleum naphtha. The asphaltenes may be dissolved in an organic solvent and added to an aqueous gel of the gelling agent or dispersed in the base oil before or preferably after addition of the gelling agent; the asphaltenes may be oxidised.  The lubricating oil may be mineral oil, esters, including polyesters and complex esters, ethers or silicone fluids; mineral bright stocks and polyphenyl ethers are preferred.  The inorganic gelling agent may be clay e.g. montmorillonites such as bentonite or hectorite, silica, magnesia, magnesia-silica, or silica-alumina.  Examples illustrate the stability of the greases to ionising radiation, as compared with greases using amino amide hydrophobing agents instead of the asphaltenes.
Patent GB-1146466-A (GB)
Title: Anode adjustment of mercury-cathode electrolytic cells
Inventor: SELWA TADEUSZ RYSZARD
IPC: C25B15/04
Filed: 1966-03-23
Abstract: 1,146,466. Programmed adjustment of electrolytic cells. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 2, 1967 [March 23, 1966], No.12854/66. Addition to 1,088,162 Heading G3N. [Also in Division C7] The anodes of the mercury-cathode cell of the parent Specification are set sequentially to obtain a predetermined conductance of the electrolyte gap by means of an adjusting tool which is automatically moved to a position above an anode-adjusting nut, lowered to engage the nut, adjusted by a servomotor drive system controlled by a circuit including conductance-measuring apparatus generally similar to that described in Specification 1,088,163, raised to disengage the nut and moved to a position above the next nut for the above cycle to be repeated. Movement of the tool along the anodes of a row and from one row to the next is determined by a sequential controller comprising a combination of logic circuits, interval timing circuits, micro-switches and limit switches programmed to ensure that no one operation can begin until the previous operation in the sequence has been completed. The sequential controller may comprise a digital computer with associated mechanical switching devices. In the described embodiment the tool is moved along the row by a carriage which runs along a crane movable laterally from one row to the next, the various movable members and measuring circuits being controlled by multi-gang, multi-position switches, servosystems and tapped potentiometers, Figs. 1 to 6 (not shown). In a preferred method of operation the equipment is manually controlled to position the tool above the "first" anode of a cell and plugs and sockets are manually engaged to connect cables from the crane to conductance data and to a control room printer, after which the equipment is set to "first anode" position and finally switched to automatic control for sequential adjustment of the anodes of the cell. If during this operation an anode or wiring system is found to be faulty, the printer will print out the relevant fault data, the faulty anode will not be adjusted and the tool will be moved to the next anode. Other faults may sound an alarm for investigation and changeover to manual control. The whole operation may be made more or fully automatic by appropriate alteration of the system, e.g. motorized engagement of the plugs and sockets. In another envisaged modification the carriage may carry several tools for simultaneous adjustment of several anodes, e.g. an anode in each row may be simultaneously adjusted and the control system correspondingly simplified. The conductance between each anode and cathode may be uniform or may be varied in a predetermined manner. The system may be extended to adjust the anodes of two or more cells.
Patent GB-216532-A (GB)
IPC: D21B1/00
Filed: 1924-05-26
Abstract: 216,532. Ges. f³r Mechanische Zellulose, (Assignees of Gõhler, J. J.). May 25, 1923, [Convention date]. Pulp, preparation of.-In the manufacture of paper, cardboard, and the like from dry grasses. reed grass, the straw of cereals, legumens, potatoes and similar plants, the materials are cut into chaff, moistened, introduced into a boiler, and steamed for 2-4 hours at 5-6 atmospheres pressure. The steamed material is then reduced in a rag engine, edge mill, or similar apparatus, and is worked into unbleached paper, the natural glutens and vegetable glues present rendering the addition of size and fillers unnecessary, or it may be boiled with suitable chemicals and then bleached for the production of bleached paper and cellulose. The steamed material may be pressed into bales or cakes so that it may be charged into a boiler without further treatment. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the addition of a sterilizing agent to prevent rotting during storage or transport. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 179,885.
Patent GB-118620-A (GB)
Title: Improved Magneto-electric Machine.
Inventor: WOLKOFF BASIL
IPC: H02K21/32
Filed: 1918-08-09
Abstract: 118,620. Wolkoff, B., (known as Wolkhoff, W.) Aug. 9, 1917, [Convention date]. Magneto-electric machines.-A single magnet 2 is fitted within grooves provided in side plates 1, 3; the plate 1 which also supports the interrupter is integral with the base. The rotating disk 12 of the interrupter is secured by a screw 11 to the armature end-plate 10 and is made in one piece with a bracket 13 carrying a compression spring 14. Another spring 15 on the bracket 13 limits the movement of the interrupter lever 16, which has its widest portion opposite a stop 17 formed on the disk 12. An earthing-contact 18 bears against the head of the screw 11, the contact being supported by a screw 19, washer 20, and nut 21. The distributor pinion 4 is mounted in ball bearings secured by a clamping-ring 6 in which a felt pad 7 is fitted. The rotary distributor brush 24 is set obliquely in the holder 23 and supplies current to stationary terminals 26; an auxiliary contact 27 is provided for use with a starting-magneto. A lubricating-tube 30 is closed by a lid 31. According to the Specification as open to inspection under Sect. 91 (3) (a), the plate 3 carries a safety spark-gap and a carbon contact for connexion to earth (the frame of the machine). This subject-matter does not appear in the Specification as accepted.
Patent GB-729620-A (GB)
Title: An acoustic device with an inverted horn having a throat vented to the atmosphere
IPC: H04R1/28
Filed: 1953-05-09
Abstract: 729,620. Loud-speakers. HEIDRICH, S. L. May 9, 1953, No. 12976/53. Class 40 (4). [Also in Group XXXVIII] The front and back respectively of the diaphragm 8 of a moving coil loud-speaker communicate with the atmosphere through a tube 5 and through a chamber 7 and a reversed annular inwardly re-entrant horn 6. The tube 5, integral cup member 4 and casing members 1, 3 which together define the horn 6 and the chamber 7 are made of cast aluminium, sheetmetal stampings or moulded plastic. Spacers 17, Fig. 3, are inserted at intervals to locate the tubular portion 2 of the casing member 1 and the member 4, 5. Metallic wool may be inserted in the throat of the re-entrant horn.
Patent GB-829995-A (GB)
Title: Improvements relating to intermediate electric switches
IPC: H01H23/16
Filed: 1955-05-05
Abstract: 829,995. Tumbler switches. M. K. ELECTRIC Ltd., ARNOLD, C. L., DOWSETT, R. W., and SHARMAN, A. V. May 4, 1956 [May 5, 1955], No. 13112/55. Class 38 (5). One pair of resilient contact blades 11, 13 of an intermediate switch are connected to an input terminal 9 and a second pair 12, 14 are connected to an input terminal 10, the blades respectively co-operating with fixed contact pairs 25, 28 and 29, 26. Contacts 25, 26 are connected by a plate 22 to an output terminal 19, and contacts 28, 29 by a plate 27 to an output terminal 20. A bifurcated dolly 30, pivoted at 32, 33, has cams 39, 41 and 40, 42 co-operating respectively with followers 43, 45 and 44, 46 on the blades 11, 13 and 12, 14. In one dolly-position, blades 11, 12 engage contacts 25, 29 and blades 13, 14 retain the dolly in that position. In the other dolly-position, blades 13, 14 engage contacts 28, 26 and blades 11, 12 retain the dolly. The blades are also acted on by springs, as 47 in Fig. 4.
Patent GB-229240-A (GB)
IPC: H02P25/18
Filed: 1924-05-28
Abstract: 229,240. Banneitz, F. Feb. 14, 1924, [Convention date]. Systems for maintaining constant speed.-In a centrifugal governor of the kind described in Specification 216,885, a mass is mounted on a resilient bracket and is arranged so that its centre of gravity can be set at any desired distance from the axis of rotation. A weight 5 concentric with the shaft 1 is mounted on a flexible arm 4 secured to the disc 2 and has rods 6, 7 on which are adjustably mounted weights 8, 9. A coiled spring 15 adjustable by a screw 16 connects the weight 5 and disc 2, and movement is limited by a pin on the arm 4 engaging in a slot in the arm 12. The weight has a face 10 inclined to a plane normal to the axis of rotation and completes an electric circuit during a part of each revolution dependent on the speed through an eccentric adjustable contact 17.
Patent GB-587469-A (GB)
Title: A device for covering and protecting cycle saddles
IPC: B62J1/18
Filed: 1942-05-18
Abstract: 587,469. Cycle saddle covers. CHEW, Y. L. May 18, 1942, No. 13152/41. [Class 136 (iii)] A cover is made of rubber or other material capable of being moulded with relatively rigid and flexible zones and comprises a one-piece moulding having three rigid portions 10, 11, 12, Fig. 3, and intermediate zones 17 of a more flexible nature which permit folding to the collapsed position shown in Fig. 4. The side edges 14, 15 of the zones 17 diverge as shown. Ribs 18 of heat insulating material are provided on the underside of the parts 10, 12 to keep them out of contact with the saddle top. .The section 12 is provided with lugs 19 to receive straps which are threaded through the usual slots formed in the back of the saddle. A lug 20 for manipulation is provided on the part 10. When the cover is collapsed an eyelet 21 on the part 10 is engaged with a stud 22 on the part 12.
Patent GB-455592-A (GB)
Title: Improvements relating to bituminous macadam surfacings for roads and the like
IPC: C08L95/00
Filed: 1936-05-11
Abstract: In the manufacture of bituminous macadam road surfaces and the like, unrefined gasworks tar which has been dehydrated at about 250 DEG  F. is used as the fluxing agent for the bitumen.  Suitable proportions are 1 part of tar to 2 parts of bitumen.