baber/WOPTO huggingface dataset:
Patent GB-1011068-A (GB)
Title: Improvements in or relating to astronomical telescopes
IPC: G02B23/16
Filed: 1962-07-03
Abstract: 1, 011, 068. Astronomical telescopes. CARL ZEISS-STIFTUNG [trading as CARL ZEISS]. July 3, 1962 [July 6, 1961], No. 25481/62. Heading G2J. In an astronomical telescope wherein the optical axis of the objective and the polar axis are inclined and have a plane minor at their point of intersection such that light from the objective is reflected into the polar axis, the optical system as a whole is rotatable about the polar axis and the objective is rotatable about a further axis # which is perpendicular to the axis of declination and passes through the point of intersection of the objective and polar axes. This enables the instrument to be sealed effectively against weather conditions. The housing may be constructed of double walls which are connected with one another only by the base plate so as to give protection from wind forces. As shown in Fig. 1, light from the objective 3 is reflected by mirror 1 into the polar axis α about which the whole instrument is rotatable. The polar axis tube 4 carries a housing 5 on which the housing 6<SP>1</SP>, which carries the objective tube, is mounted by means of ball bearings 7 so that the objective may rotate round the axis # which is perpendicular to the axis α. Such rotation not only causes a change in the angle of declination but also an angular change about the polar axis α. Fig. 2 shows a telescope having double wall construction. The objective tube 8 and housing 9 rotate on ball races 19 on the inner housing 11 about the axis #<SP>1</SP> which is the plane of the mirror 1. The inner housing 11 carries the polar axis tube 10 which rotates on bearings 21 and is supported only by member 12 on the inner part of the base 13. The outer housing comprises parts 14, 15 also mounted on bearings 19 on the parts 17, 16<SP>1</SP> which in turn rotate on bearings 20 about member 16 which is attached by member 18 to the outer part of the base 13. In a further embodiment, the axis # is perpendicular to the objective axis #. A device comprising gears for transmitting readings of the angular movements is described.
Patent GB-1034739-A (GB)
Title: Steering differential for towed or self-propelled vehicles
IPC: B62D7/02
Filed: 1963-06-26
Abstract: 1,034,739. Linkwork. GLAVERBEL. June 26, 1963 [July 13, 1962], No. 25500/63. Heading F2K. [Also in Division B7] Steering mechanism comprises a casing 25 containing pairs of cranks 18, 19, 26, 27, the cranks 18, 26 being secured to an input shaft 23, cranks 19, 27 being secured to output shafts 24, 34 respectively, cranks 18, 19 being connected by a link 20 and cranks 26, 27 being connected by a link 28. Input shaft 23 is driven from a steering shaft 33 through worm 32 and wormwheel 31, and output shafts 24, 34 are connected to pivots 8 of vertical forks 7 carrying steerable wheels 1, 2. Links 20, 28 are located on opposite sides of a central plane whereby differential rotation of output shafts 24, 34 is obtained so as to place the planes of the steerable wheels substantially perpendicular to straight lines passing through the centres of the wheels and the centre of the turning circle of the vehicle. For vehicles whose end wheels on each side of the longitudinal central axis of the vehicle have the same wheel base, all the cranks are of the same length, which is identical to the length of the links 20, 28, and output shafts 24, 34 are offset the same distance from input shaft 23. For vehicles whose end wheels on each side of the longitudinal central axis of the vehicle have different wheel bases, the lengths of the pairs of cranks and the links are made proportional to the wheel bases and the output shafts 24, 34 are offset at different distances from the input shaft 23, these distances being proportional to the wheel bases. In a modification, shown in Fig. 14, the output shafts 24, 34 are located on opposite sides of the axis of shaft 23 and the links 20, 28 are located on the same side of the central plane. If the links 20, 28 are located on opposite sides of the central plane, identical movements of output shafts 24, 34 are obtained. For reverse rotation of any pivot 8, a sleeve 15, Fig. 1, rotating with a shaft 14 carries bevel gears 13, 13<SP>1</SP> either of which may be meshed with a bevel gear 12, carried by pivot 8, by axial movement of sleeve 15, by means of links 16, 17. In another modification, the shaft 23 is carried in a slider, represented in Fig. 17 by a slot 47, so that the shaft 23 may be brought into line with shaft 24, 34 when identical movement of the shafts is required. Chain gearing 48, 49 having a slack chain 52 connects shafts 24 to their respective pivots to allow the lateral movement of the shaft 23, the chain 52 being engaged by a slide 54 controlled by a pivoted lever 56. Figs. 18 and 19 show an embodiment in which the cranks are incorporated in gear-wheels 61, 62, 63 and 64. In the embodiment shown in Fig. 20, three pairs of cranks are used, pair 75, 76 or pair 26, 27 being clutchable to output shaft 34.
Patent GB-1468329-A (GB)
Title: Clutch sleeve assembly
IPC: F16D23/02
Filed: 1975-06-16
Abstract: 1468329 Positive clutches W H BIBBENS 16 June 1975 [8 July 1974] 25550/75 Heading F2C An axially slidable shift sleeve for a positive clutch comprises an internally toothed metal sleeve 12 surrounded by a collar 16 of moulded organic polymeric material, the collar having a circumferential groove 18 which receives a shift fork and having means 24 which prevent axial movement of the collar 16 relative to the sleeve 12. As shown radially inward circumferential projections 24 engage grooves 26 to prevent axial movement between the collar 16 and sleeve 12. As shown clearances may be provided between the projections and grooves to permit the collar 16 to rotate relative to the sleeve 12. In Fig. 3 (not shown) the projections and grooves are a tight fit to prevent relative rotation between the collar and sleeve. In Fig. 4 (not shown) the collar is secured to the sleeve by adhesive strips (30). Lubricating grooves 28 may be provided in the shift fork groove 18. The collar 16 may be made of nylon or polypropylene.
Patent GB-1441370-A (GB)
Title: Toner release oil transfer pad
IPC: G03G15/20
Filed: 1974-06-10
Abstract: 1441370 Heat fixing XEROX CORP 10 June 1974 [11 June 1973] 25729/74 Heading G2H Silicone oil 51 is continuously applied to the heated roll 16 of a toner image fusing apparatus by a permeable pad 62 the working surface of which is made of silicone rubber. The pad 62 may be formed of silicone rubber sponge, may have an embossed or rippled surface and may be reinforced internally with a fibre layer. The silicone rubber may overlie a layer of other heat stable oil permeable material.
Patent GB-765862-A (GB)
Title: Improvements in bag supports for cycles
Inventor: KIRBY ALFRED THOMAS
IPC: B62J7/02
Filed: 1954-09-06
Abstract: 765,862. Luggage-carriers. ASHBY & SONS, Ltd., F. July 26, 1955 [Sept. 6, 1954], No. 25734/54. Class 136(1). In a cycle bag support of the kind comprising a frame 1 adapted to engage the underside of a bag and having side members 3 formed of wire and carrying clamping parts for securing the device to the rear forks 2 of a cycle frame, the clamping parts are formed by extensions of the wire which forms the sides of the device by bending an extension 4 of each side so as to provide upper and lower portions 5, 6 adapted to engage a member of the rear forks of the cycle at two vertically-spaced points, and so as to provide also an integral loop 8 through which a clamping bolt 9 may be passed for the purpose of drawing the clamping parts at the two sides of the device towards one another and into engagement with the rear fork members of the cycle.
Patent GB-760698-A (GB)
Title: Preparation of novolak resins
Inventor: FRASER DONALD ALEXANDER
IPC: C08L61/06
Filed: 1953-09-18
Abstract: In making a novolak resin by condensing a molar excess of phenolic compounds containing phenol, meta-cresol or meta-ethyl phenol with formaldehyde, the reaction is effected at a pH of 4 to 7 in the presence of an oxide or hydroxide of divalent lead, manganese or cobalt as condensation catalyst.  Other phenols may be used in conjunction with at least one of the aforementioned phenols, e.g. commercial xylenols.  The preferred starting material is pure phenol or an isomeric mixture of cresols containing mcresol.  The molar ratio of phenol(s) to formaldehyde is preferably from 1.3:1 to 2.0:1. The reaction is effected by mixing the phenol(s) and formaldehyde (as formalin or paraformaldhyde), adding the catalyst thereto and heating gently until reaction occurs, volatile compounds being allowed to distil off until the temperature reaches 150 DEG  to 160 DEG C.  When the desired degree of condensation has been reached, residual volatile compounds, e.g. unreacted phenols, may then be removed either by vacuum distillation or by adding further formaldehyde with further heating.  Examples are given.
Patent GB-440220-A (GB)
Title: Improvements in the manufacture of wilton and brussels carpets, floor rugs and mats
IPC: D03D27/12
Filed: 1934-09-07
Abstract: 440,220. Carpets &c. MACKAY & CO., Ltd., H., and MACKAY, L. H., Durham Carpet Factory,. Walker Gate, Durham. Sept. 7, 1934, No. 25808. [Classes 142 (i), 142 (ii), and 142 (iv)] A Wilton or Brussels carpet, rug, or mat has a felling e<1> Figs. 4 and 6, consisting wholly or mainly of ground warp and weft threads b, c, folded beneath and secured directly to the thicker pile portion e of the fabric, the pile &c. threads c not required being floated behind the fabric during the weaving operation and subsequently removed. The drive for the comber board, which is rendered inoperative during the weaving of the felling, comprises a constantly reciprocating rod &c. g, Fig. 7, which is detachably connected to a rod f or a sleeve associated with the comber board by a removable pin h.
Patent GB-254574-A (GB)
Title: Improvements relating to hub caps for motor vehicle wheels
IPC: B60B27/00
Filed: 1925-10-15
Abstract: 254,574. Briscoe & Co., Ltd., W. H., and Briscoe, E. C. Oct. 15, 1925. Hubs.-A hub cap comprises a thin metal closure a formed with a flange or shoulder b against which the flange plate c is secured by turning over the open end of the part a.
Patent GB-170472-A (GB)
Title: Improvements in electric switching systems for charging batteries
IPC: H01M10/46
Filed: 1920-09-08
Abstract: 170,472. Atkins, J, Sept. 8, 1920. Systems of charging and discharging galvanic batteries.-Both terminals of a battery e, Fig. 1, are connected to and disconnected from a lighting system d by means of two double-pole switches a, a<1> the movable members of which are connected by a bar b. In a modification the switch a is replaced by a single-pole switch and the position lead is connected direct to the left-hand upper terminal of the switch a<1>. In the further modification shown in Fig. 3, the tumbler switches shown in Fig. 1 are replaced by two mechanically connected rotary-arm switches f, f<1>. In a further modification, the arms of the switches f, f<1> are concentrically mounted.
Patent GB-1511844-A (GB)
Title: Gas pressure regulators
IPC: G05D16/10
Filed: 1975-05-15
Abstract: 1511844 Valves F X KAY 15 May 1975 [11 June 1974] 25928/74 Heading F2V A combined gas pressure reducing and relief valve assembly comprises a housing 1 having one or more inlet ports 4 and an outlet port 5 between which flow is controlled by a closure member 16 urged in the opening diection by spring 19 acting above piston 18 (or diaphragm 24, Fig. 3, not shown) and in the closing direction by outlet pressure acting below the latter. Should the outlet pressure exceed its set value piston 18 is forced upwardly until valve stem portion 17a fully disengages seal 21 whereupon outlet pressure is vented via passage 20 and port 7. The length of portion 17a determines the relief pressure. The closure member 16 and its seat 12 are formed as a unit which is screwed into housing 1 for easy replacement. The loading of spring 19 can be adjusted by a screw 8.
Patent GB-174116-A (GB)
Title: Improvements in filters or strainers and sifting surfaces
IPC: B01D29/11
Filed: 1920-09-09
Abstract: 174,116. Hurrell, G. C. Sept. 9, 1920. Wire that is to be coiled on a drum or framework to form a filtering, sieving, or screening surface is formed with recurrent waved or indented portions. In the form shown in Fig. 2 the wire is indented at A<2> to leave narrow portions A<3> having the original width of the wire. In a modification the wire is indented in a plane at right-angles to that shown in Fig. 2, to form sections A<3> wider than the original width of the wire. A further modification is shown in Fig. 2<a>.
Patent GB-673051-A (GB)
Title: Improvements in or relating to rotary elastic-fluid operated motors
IPC: F01C1/344
Filed: 1950-10-25
Abstract: 673,051. Rotary engines. WILLIAMS, G. H. T. Oct. 25, 1950, No. 25993/50. Class 110(ii) The supply of working- fluid for an inlet chamber 21 divides, one stream. through a port 23, entering the working chamber to drive blades 6, the second stream, by way of passages 24, 26 forcing the blades outwards. The chamber bore at 28 is sharply increased in radius to allow a blade to move outwards rapidly. Exhaust ports 27 are provided. The blades may be of light metal alloy or of a non-metallic material such as fibre. The working-fluid may be compressed air, steam or other gas. The engine may be used to drive a tool. Specification 605,336 is referred to.
Patent GB-1157178-A (GB)
Title: Musical Instrument Assembly with Continuously Variable Tone Control
IPC: G10H1/02
Filed: 1967-06-06
Abstract: 1,157,178. Musical instruments. WARWICK ELECTRONICS Inc. 6 June, 1967 [24 Feb., 1967], No. 26027/67. Heading G5J. [Also in Division H3] A variable frequency resonator circuit is included between the output of an electric guitar and its amplifier, variation of the resonant frequency introducing " wow-wow " into the output. The circuit comprises an inductance 38 and a capacitance formed by the effective input capacitance of feedback amplifier 24, 34. The effective capacitance and hence the resonant frequency is varied by a potentiometer 28 which may be ganged with a switch 41 included to switch the circuit in or out. The switch and potentiometer may be foot operated, Figs. 4, 5 (not shown).
Patent GB-1222605-A (GB)
Title: Improved smoker's pipe
Inventor: GOURY ANDRE
IPC: A24F1/22
Filed: 1968-05-30
Abstract: 1,222,605. Tobacco pipe. A. GOURY. 30 May, 1968 [31 May, 1967], No. 26028/68. Heading A2M. A tobacco pipe comprises an outer bowl 2, an inner bowl 1 secured thereto by a locking ring 3, and a filter ring 4 sited within a smoke chamber c between smoke outlet holes a in the bowl 1 and the stem 13 of the pipe. The inner bowl 1 can be of clay. The ring 3 may be secured by screw threads or by a bayonet pin and slot joint.
Patent GB-496081-A (GB)
Title: Improvements in and relating to fuzes for hand grenades
IPC: F42C14/02
Filed: 1937-09-27
Abstract: 496,081. Grenades; fuzes. VECSEI, Z. Sept. 27, 1937, No. 26167. [Class 9 (i)] A striker 22 is pivoted in a grenade and is normally held laterally of the percussion cap 34 by means of a delay element which is displaced by centrifugal force after the grenade is thrown to allow the striker point 22<1> to come in line with the percussion cap to fire the grenade on impact. The grenade comprises an outer casing in two parts 1, 30 screwed together, and an inner casing also in two parts 31, 32 connected together by friction. The lower part 32 contains an explosive charge B, a priming charge 35, and the percussion cap 34. In the upper part 31 there is a slidable casing 33 closed by a lid 25 and containing an explosive charge A. The two-part inner casing is pressed towards a conical seat 37 in the base of the outer casing by a spring 9 situated above the slidable casing 33. The inner wall of the casing 33 forms a flattish inner casing 28 in which the striker 22 is mounted by means of an elongated slot 39 on a pivot pin 23 fixed to the casing. In the unarmed position, Fig. 1, the upper end of the striker abuts against a screw 19 screwed into a threaded hole 26 in the end wall 27 of the flat casing 28, which end wall has also a slot for the end of the striker. The outer casing is closed by a cap 12 attached thereto by a bayonet-joint 7, 18. A central tube 21 in the cap embraces the screw 19, which has a head 19<1> larger than the hole in the inner end 20 of the cap through which the screw passes. When the grenade is to be thrown, the bayonetjoint of the cap is unfastened, after which the grenade is thrown with a rotary motion. Centrifugal force causes the separation of the casing 33 from the casing 32 and the outward movement of the cap. The cap continuing this movement brings the wall 20 up to the head 19<1> of the screw 19 and unscrews this from the threaded hole 26, whereupon the striker lever 22 is released and swung by a spring 41 to bring the striker point 22<1> in line with the percussion cap 34 in readiness to fire the grenade on impact in any direction, the impact causing the casings 32, 33 again to approach each other. For safety in case of a misfire, a second lever 43 is pivoted on the pin 23 and is engaged with a pin 44 on the striker so as to rotate with the striker during the arming operation. On impact the end 43<1> of the lever 43 is wedged aside by the percussion cap 34, thereby disengaging the lever 43 from the pin 44. If there is a misfire, the spring 41 can now lift the striker and a projection 40 on the striker will then enter a hole 45 in the casing 28 and lock the striker out of action. The end of the striker now projects out at the top of the casing 28, thereby indicating the misfire.
Patent GB-860537-A (GB)
Title: An electrical switchgear
IPC: H01H19/64
Filed: 1957-08-19
Abstract: 860,537. Switch cases. NAIMER, H. L. Aug. 19, 1957 [Aug. 28, 1956], No. 26175/57. Class 38 (5). A cam-operated switch, or assembly of such switches 1, is secured to a plate 6 attached to a switchboard 8 by bayonet fittings. The plate 6 has wedge-shaped projections 10 which cooperate with tapered slots 12 in projections 5 formed integrally with a plate 3 which may, as shown, be attached to the switches by bolts 2, or by similar bayonet fittings. The plates 3 and 6, and the casings of switches 1 are made of a thermoplastic material, e.g. a superpolyamide, as may a pin 13 for locking the parts against reverse rotation.
Patent GB-897202-A (GB)
Title: Improvements relating to rectifier/inverter equipment
Inventor: KEMP HENRY
IPC: H02H7/12
Filed: 1959-07-30
Abstract: 897,202. Protective cut-out arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 24, 1960 [July 30, 1959], No.26197/59. Class 38 (5). [Also in Group XXXV]  In a rectifier/inverter equipment having polyphase voltage transforming means PT in combination with a plurality of gridcontrolled gaseous - conduction valves V1 . . . V6, switching means are arranged for operation in accordance with a quantity derived from the current in at least one anode-cathode path of the equipment reaching a predetermined value signifying a " breakthrough " fault during inverter operation, and means are provided for reducing or nullifying the quantity which would otherwise be derived in accordance with the anode-cathode current when the equipment is rectifying. In the Figure, the multi-anode mercury arc valves are arranged in two groups and the common cathode path C of each group provides a D.C. control conductor for a saturable core reactance device RD having A.C. windings AC1, AC2 supplied from a transformer T in series with a bridge rectifier RF connected to the trip coil TC of a circuit-breaker XB. This series-circuit also includes the A.C. windings AC3, AC4 of a further saturable core reactance device RD1 having D.C. control windings DC1, DC2 and opposing D.C. biasing windings B1, B2. When the equipment is rectifying, the current in the windings DC1, DC2 is of the same order as that in the windings B1, B2, so that the windings AC3, AC4 will have high impedances and prevent the effective energization of the trip coil TC. In the changeover from rectifier operation to inverter operation, the current in the control windings DC1, DC2 is reduced so that the biasing windings B1, B2 reduce the impedances of the windings AC3, AC4. If a " breakthrough " fault occurs, the increase in the current in the cathode path C causes the impedance of the A.C. windings AC1, AC2 to be reduced. The coil TC is now sufficiently energized to trip the circuit-breaker XB. Protection against " backfires " when rectifying may be provided by means of a conventional direct - acting reverse current trip operable to release the circuit-breaker XB. Electronic valves or transistors may be used in place of the reactance devices RD1.
Patent GB-285339-A (GB)
Title: Novel or improved means for carrying and adjusting the wick of an oil lamp or stove
IPC: F23D3/00
Filed: 1927-10-05
Abstract: 285,339. Jones, S. Oct. 5, 1927. Wick-operating devices.-The wick 4 of an oil lamp or stove is raised and lowered by means of a perforated carrier A formed with projections C engaging holes d in spring arms D attached to a bracket E which is movable vertically by rotating a screw F operated by a knob G. The projections C are formed by slitting the metal of the carrier A at two adjacent points and rolling the tongue between upwards and outwards. The carrier A is provided with internal pointed projections B engaging the wick.
Patent GB-1183975-A (GB)
Title: Method and apparatus for Continuous Galvanising
IPC: C23C2/06
Filed: 1967-06-07
Abstract: 1,183,975. Galvanizing steel sheets &c. METALLURGIQUE D'ESPERANCE-LONGDOZ S.A. June 7, 1967 [June 7, 1966], No.26344/67. Heading C7F. A cold rolled coil 2, with the turns not touching, is annealed in a furnace 3 at 650 to 750‹C. in an atmosphere of wet hydrogen to decarburize or decarburize and denitride the steel, cooled, uncoiled, reheated, in a furnace 5, to 450 to 520‹C. in a protective atmosphere rich in hydrogen, e.g. cracked ammonia, and whilst in this atmosphere, is passed through a zinc bath 16 at 445 to 465‹C., which bath may contain aluminium. The thickness of zinc deposited is controlled by rollers 18, and the coating is cooled by a water spray 17.
Patent GB-1262194-A (GB)
Title: Low expansion devitrifying glass frit
IPC: C03C10/00
Filed: 1969-05-23
Abstract: 1,262,194. Thermal regenerators. CORNING GLASS WORKS. 23 May, 1969 [31 May, 1968], No. 26347/69. Heading F4K. [Also in Division C1] A regenerative honeycomb heat exchanger body for use with gas turbines consists of a crystalline glass ceramic having a thermal expansion coefficient of 0-15 Î 10<SP>-7</SP>/ C. (0- 1000 C.) and a crystal content of at least 90% by weight. Such a body may be prepared by (a) preparing a glass frit consisting essentially of, to an extent of at least 98% by weight, Li 2 O 3À5- 7À5, Al 2 O 3  15-30 and SiO 2  65-80, where the molar ratio Al 2 O 3  : Li 2 O is 1À0-1À5; (b) mixing the frit with, e.g., ethyl acetate and acrylic resin as binder and applying to an organic carrier, e.g. tea bag paper, and drying; (c) crimping the coated carrier, and forming a roll or stack of the coated paper; and (d) firing the roll or stack at 1000-1350 C. for 1-24 hours to sinter the glass, remove the organic carrier and cause crystallization of the glass.