baber/WOPTO huggingface dataset:
Patent GB-588534-A (GB)
Title: Improvements relating to power units for cycles
IPC: B62M7/12
Filed: 1945-02-27
Abstract: 588,534. Motor attachments for cycles. JONES, G. H. Feb. 27, 1945, No. 4914. [Class 79 (iii)] An internal combustion engine and transmission mechanism for imparting positive motion to a cycle wheel is provided with a supporting lug whereby it can be rigidly secured to one end of one of the road wheel axles so that it is situated wholly above the axle, and is provided also with means for direct attachment to the cycle frame. As shown a small petrol engine a provided with chains and sprockets for power transmission is provided with a lug o by which it may be bolted to the road wheel axle i. The engine is further braced to the cycle frame by means of brackets t, u. Instead of the lug o a separately formed lug mounted on the spindle may be bolted to the engine crankcase.
Patent GB-297635-A (GB)
Title: Improvements in fluxes for use in melting aluminium or other non-ferrous metals
IPC: C22B21/06
Filed: 1928-02-17
Abstract: 297,635. Wardle, G. W. Feb. 17, 1928. Dry processes of refining metals. - A flux for use in the melting of aluminium and other non- ferrous metals comprises cryolite which is crushed, heated sufficiently to fuse the particles, and formed into blocks, preferably of spherical or substantially spherical form by casting in moulds.
Patent GB-1445825-A (GB)
Title: Apparatus and method for the production of a surface coated sheet of glass
IPC: C03C17/25
Filed: 1974-02-04
Abstract: 1445825 Coating sheet glass SAINT-GOBAIN INDUSTRIES 4 Feb 1974 [6 Feb 1973] 05012/74 Heading C1M In a method of producing surface coated sheet glass by passing the glass into a spray chamber 9, waste gas is removed from the chamber, passed through a heat exchanger 3, 3<SP>1</SP> where it is heated by combustion gases in the flue 4, 4<SP>1</SP> of the glass melting furnace 2 and finally passed into the furnace. Molten glass from the furnace is formed into a sheet using a float tank 8 before being conveyed into the spray chamber 9. The spray chamber 9 is of the type described in U.K. Specification 1,428,248.
Patent GB-1512081-A (GB)
Title: Gaskets
IPC: F16J15/12
Filed: 1975-02-06
Abstract: 1512081 Gaskets ENGINEERING COMPONENTS Ltd 22 Jan 1976 [6 Feb 1975] 5043/75 Heading F2B A gasket, e.g. for an I.C. engine cylinder head, comprises a body defining an aperture 2, and a loading device in the form of a ring 4a disposed at least in part within and contiguous with the periphery of the aperture 2 and enclosed within an eyelet 3, the ring 4a having a cross-section which, prior to compression in a joint, has a greater overall dimension z in the plane of the ring 4a than in the diection y normal to that plane. The eyelet 3, of, e.g. stainless steel, may also enclose a second ring 4<SP>1</SP>, Fig. 3 (not shown) of circular section, or a shim 6, Fig. 6 (not shown) of, e.g. steel. The eyelet may also include grooves on one or both sides, 5, 5<SP>1</SP>, Figs. 4 and 5 respectively (not shown); these are said to increase the unit loading on the eyelet. The ring 4a may be hollow, elliptical in crosssection, and/or of low carbon steel or non- metallic material, e.g. ceramic, asbestos, graphite or a composite of these. The body of the gasket may be of asbestos, rubber, or graphite, possibly laminated with metal.
Patent GB-397504-A (GB)
Title: Improvements in and relating to boxes or crates for fish and like perishable goods
IPC: B65D85/34
Filed: 1932-02-19
Abstract: 397,504. Boxes for wet fish &c. GEORGE, D., Lyndal, Sketty Road, Swansea. Feb. 19, 1932, No. 5044. [Class 18.] A box or crate for wet fish or other merchandise comprises an outer member which may be of the size and capacity of the usual oblong fish box and which is formed mainly of galvanized hoop iron or other metal laths 10, 11, 16, Fig. 2, secured to one another and to angle members 12 .. 15 by riveting or by spot welding, triangular gusset plates being provided at the corners of the bottom to resist deformation and top edge members 17 .. 20 of inverted U-section being arranged to embrace the upper ends of the laths 16. These V- section members may enclose strengthening wires and may be constituted by a single strip. The corners are constituted by angle-pieces 21 . : 24 and the sides and ends may contain horizontal laths (not shown). Wood battens may be secured at the sides and so connected at the bottom as to prevent sliding of the box or crate on the ground. An inner lining 25, Fig. 3, e.g. a collapsable structure of cardboard waterproofed with paraffin wax, ozokerite, &c., orTa multi-ply paper sack is held, in place by a lid comprising elements 29, 30, Fig. 2, hinged at the upper ends of the box or crate, so that they can turn down inside the crate when empty or can be secured together over the lining by a soft iron tongue 32 passing through a slot in the member 29 or by other means. A binding wire and seal may be used on the tongue 32. An alternative closure is shown in Fig. 5 in which the container mouth frame 17 .. 20 carries drop handle 31 and a frame 36, 37 hooks at 38 over the hinge section of one handle and is secured at the other end to short hinged strips 42 by rotatable T-headed fasteners 40. When the closure members are inside the body the containers may be nested. A slightly modified form of body is also described.
Patent GB-1193501-A (GB)
Title: Improvements in or relating to Positioning Apparatus
IPC: G02B21/26
Filed: 1967-02-02
Abstract: 1,193,501. Microscope stages. W. WATSON & SONS Ltd. and K.F. HALL. Feb. 1, 1968 [Feb. 2, 1967], No. 5045/67. Heading G2J. A microscope stage has jaw members 25a, 25b which are urged together to grip a member 12 between them, a first position adjuster 24 to effect movement of the jaws in a first direction along the line of action of the jaws and second and third position adjusters 35, 36 to effect movement of the two jaw members respectively and separately in a second direction perpendicular to the first direction, the jaw members being adapted to permit limited rotation of the member when either the second or the third position adjuster is operated independently of the other. The abutment faces of the jaws are made of resilient material. Leaf springs 23, 26a, 26b support a movable frame 20 from a fixed frame 14 and the jaws from the movable frame. The device is used to accurately align and mount a photographic plate 12 upon a mounting frame 13. Reference marks are provided upon the photographic plate and these are brought within the field of view of the microscope using known information by adjustment of verniers 44, 45, 51, 52 which move the whole assembly in two perpendicular directions. The plates when aligned are cemented to frame 13 and used in a photographic step and repeat camera.
Patent GB-546200-A (GB)
Title: Thermionic amplifiers employing negative feedback
IPC: H04B3/08
Filed: 1941-04-18
Abstract: 546,200. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. April 18, 1941, No. 5050. Convention date, April 20, 1940. [Class 40 (v)] In a negative feedback amplifier having conditional or Nyquist stability as disclosed in Specification 374,130 instability produced by decrease in valve conductance, overload or varying power supply voltage is prevented by means responsive to change in the unidirectional space current in the amplifier which controls the feedback. A relay may be included in the space current path to reduce the feedback and return to normal feedback when the operating condition returns to normal. The Figure shows a 12 ... 60 kc. amplifier comprising valves 151, 152, 153 with transformer coupling and a circuit 188 resonant at 15 Kc while th network 190 with the stray capacity resonants at 60 Kc. The network 190<SP>1</SP> has resonance frequencies differing somewhat from those of the preceding coupling. The outer feedback path f includes a deviation equalizer 200 while network 205 increases the loss in the feedback path and resistance condenser combination 207, 211 improves the phase shift at high frequencies. Transformer 215 improves the longitudinal balance of the system and permits connection to balanced or unbalanced circuits. Marginal relay 301 is operated by the increase in plate current of the valve 153 when oscillation occurs and controls relay 302 which successively short circuits the input and feedback paths leaving the inner feedback path 155 operative. The relays 301, 302 release if oscillation ceases and relay 30 is of the slow release type and so removes the short-circuit of the feedback path before that across the input to prevent hunting. Network 303 is provided so that the open or short-circuiting of the input will ensure that adequate impedance is connected across transformer 5 to ensure stability.
Patent GB-603576-A (GB)
Title: Improvements in panoramic radio receiving systems
IPC: H03J7/32
Filed: 1945-02-28
Abstract: 603,576. Cathode-ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd. Feb. 28, 1945, No. 5067. Convention date, July 17, 1941. [Class 37] [Also in Groups XIX, XL (a) and XL (s)] A panoramic radio receiver employing a cathode-ray tube, of the kind in which a circular time sweep is produced by quadrature excitation of pairs of deflecting plates, is arranged to indicate received signals by applying them to separate deflecting electrodes which produce a radial beam deflection. Signals picked up by the antenna are passed through a coupling circuit 10 and fed to a receiver 13 which rectifies them so as to produce a D.C. voltage across a resistance 14 and across deflecting cones 26, 27 of a cathode-ray tube 23. The receiver 13 is continuously tuned over one (or more) wave-bands by a motor-driven rotating condenser 15. Coupled to the motor 16 is a two-phase alternator 18 whose outputs are fed to the deflecting plates 19, 20 ; 21, 22 so that a circular trace is produced on the screen 28 when no signal is received. When a signal is received, it has the effect of reducing the normally fixed voltage on the cones 26, 27 so producing an inward deflection in the trace. An image of a circular frequency scale 29 is reflected by a thin film 30 on to the screen, and the frequency of all signals received may be read directly. A single-phase alternator may replace alternator 18, one set of plates being connected through a 90 degrees phaseshifting circuit and the other set directly to its output. When one wave-band at a time is swept, half of the screen may be obscured by a shutter 33. Alternatively, thebeam may be blacked out for alternate half revolutions of the condenser 15, by the switch 35, causing defocusing of the beam; or the time-base may have twice the frequency of the condenser. When two wave-bands are covered, one in each half revolution of the condenser 15, switch 35 acts as the wave-change switch. The direction of a received signal may be obtained by manually rotating a search coil 8, of a Bellini- Tosi goniometer array 1, 2, 4, 5, 6, 7, connected to the coupling circuit 10, until the trace of the signal fades out. Unwanted signals may be annulled or decreased by the goniometer. Specifications 525,393 and 527,937, [both in Group XL], are referred to. The Specification as open to inspection under Sect. 91 describes a modification in which the alternator 18 and the deflecting electrodes are omitted, and the circular trace is produced by a motor rotating a pair of deflector coils about the neck of the tube 23. Output from the receiver is arranged to change the current through the coils. This subject-matter does not appear in the Specification as accepted.
Patent GB-829366-A (GB)
Title: Improvements in and relating to hobbing machines
Inventor: MILLS JOHN ALFRED
IPC: B23F5/22
Filed: 1957-02-15
Abstract: 829,366. Gear-cutting. CHURCHILL GEAR MACHINES Ltd. Feb. 12, 1958 [Feb. 15, 1957], No. 5264/57. Class 83 (3). A hobbing-machine comprises a vertically and angularly-movable transfer member 50 for transferring a workpiece between a conveyer and a work-table. The blanks are fed along one side of the machine by a chain having transverse rods 14 which engage the blanks. The rods 14 are also engaged in succession by a spring- loaded pawl on an hydraulic ram 16, which is reciprocated to advance the chain. The transfer member comprises two pivoted jaws 52, 53 slotted to engage pins 49 carried by an hydraulic piston 34. The piston is carried on a vertically-movable hydraulic piston 26 which carries, at its lower end, a vane 42, oscillatable between fixed stops by hydraulic pressure. In operation, with the conveyer loaded with blanks, the piston 34 is operated to close the jaws on a workpiece, and fluidpressure is supplied in succession against the piston 26 and vane 42 to raise the blank and swing it to a position above the work-holder. As the piston rotates, a dog actuates a switch to lower the piston and the blank is then released by the jaws. After the blank has been hobbed, the gear is gripped, raised and swung-back over the conveyer. It is then lowered and released, the release movement of the jaws actuating a switch to reciprocate the piston 16 and bring another blank into position. Finished gears fall down a shoot 23.
Patent GB-1525045-A (GB)
Title: Computer stores
IPC: G06F17/30
Filed: 1976-02-11
Abstract: 1525045 Data storage system NATIONAL RESEARCH DEVELOPMENT CORP 3 Feb 1977 [11 Feb 1976] 05286/76 Heading G4A A memory includes a number of sequentially numbered locations 1-20 and is accessed by upper and lower pointers 32, 34. The arrangement allows a sequence of contiguous data items accessible at its two ends to be stored, e.g. on a first-in-first-out or last-in-first-out basis. For a write operation the upper pointer is incremented and data is written into the newly identified location or the lower pointer is decremented and the data written into the newly identified location. For a read operation a data item is read and the appropriate pointer is decremented if it is the upper pointer and incremented if it is the lower pointer. In both cases incrementing beyond the uppermost location causes the pointer to point to the lowest location and decrementing beyond the lowermost location causes the pointer to point to the uppermost location. When the memory is empty and full the upper pointer points to a location one below the lower pointer. Depending on whether this situation arises following a write or read operation the memory is full and empty respectively and a marker denoting this can be stored, an error being signalled when an attempt is made to write into a full memory and read from an empty memory and the read or write operation inhibited. Two counters can be used for the two pointers or where more than one memory is provided two counters for each memory. Alternatively where more than one memory is provided a single counter can be used in conjunction with a fast access store with two locations for each memory, the location being accessed and loaded into the counter as appropriate for each access.
Patent GB-710162-A (GB)
Title: Improvements in the manufacture of cycle frames
Inventor: WATSON TOM
IPC: B62K19/02
Filed: 1952-02-29
Abstract: 710,162. Cycle frames. WALTON & BROWN, Ltd. Dec. 22, 1952 [Feb. 29, 1952], No. 5326/52. Class 136(3) [Also in Group XXII] Cycle frame components comprising a pair of integral frame tube parts such as the top bar 7, Fig. 40, and the steering head-tube 10a are made in pairs by pressing up blanks to form a main central channel 1a, Fig. 2, with channel branches 2a, 3a, welding a pair of such blanks together along adjoining edges 5, Fig. 3, and severing the central tubular portion. 6 as at 9 forming two components each comprising tubular portions 7 and channel portions of the tube 6 which are drawn out to form parts of adjoining frame members. For the steering head tube parts 10a or 13a the channel portions are rounded and the abutting edges are welded together but in forming integral top tube and saddle tube components 21, 28, Fig. 25, semi-circular section members 24 with ears 30 for the gripping bolts are welded to components with a channel portion 23 formed to semi-circular section. In making bottom bracket members 41, 42, Fig. '39, pressed up blanks 35, Fig. 32, are welded together at their abutting edges 39 and severed at staggered cutting lines 40a. The halves are then rotated and welded together with the tube portions 41, 42, at the required angle to form the sleeve portions 43. One of the blanks 35 has projections 38 which are subsequently formed into sockets 38a for the chain stays. Other examples are described in which four components may be made from pairs of pressed up blanks having four tubes 49-52, Fig. 43, projecting from a central portion 55 which is severed longitudinally and transversely along cutting lines 54. In all cases the blanks may be formed with ridges 4, 18, 27 during the pressing out operation to give the appearance of conventional sockets. After formation of the components the tubes are " drawn out" to the required lengths and are assembled as shown in Fig. 40, the abutting ends of the tubes being welded together as by flash-butt welding.
Patent GB-555825-A (GB)
Title: Improvements in high frequency apparatus embodying electron discharge tubes
IPC: H01J25/52
Filed: 1941-04-25
Abstract: 555,825. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 25, 1941, No. 5344. Convention date, April 25, 1940. [Classes 39 (i) and 40 (v)] A transmission line 23, 24, Fig. 1, is partly formed by the electrodes 30, 32 of a discharge tube 29. The magnetic field of coil 39 causes electrons emitted from cathode 32 to rotate within the anode 30. It is shown that this rotating but non-oscillating space charge reduces the effective dielectric constant between the electrodes and thus alters the wave-propagating characteristics of of this section of the line ; by varying the current through coil 39 or the voltage of anode 30 the wave-propagating characteristics of the line may be altered. The line may be a short length terminated by a magnetron 10 and its resonant frequency may be altered by tube 29, the resultant frequency being taken off by loop 45 and line 46, 47. If the effective dielectric constant is reduced to zero, the effect of a short-circuiting piston is simulated. Alternatively, the tube may be placed between a source of oscillations, such as a generator or antenna, and a line to enable the coupling between them to be adjusted, or varied for amplitude modulation. The electrodes may be two wires or plates forming part of a Lecher line. The rotating space charge may be formed by a helically moving beam of electrons. In this case the outer cylinder 94, Fig. 5, is provided with a recess at one end within which is housed the cathode 97 and a modulating ring 107 which are maintained at negative potential relative to the earthed electrode 94 so as to direct a beam through aperture 103. A plate electrode, not shown, gives the beam an axial component, so that it travels in a helical path around an extension of the central line conductor ; or the beam may move round one wire of a Lecher line. In a modification, the resonant wave-length of a hollow resonator 153, Fig. 10, is varied by varying the capacity of a tube 137 placed in an extension 136 of the resonator. If the resonator is coupled to a source of oscillations, it enables the frequency generated to be modulated ; or the coupling between an ingoing line 150 and an outgoing line 151 and hence the amplitude of the transmitted frequency may be modulated. Specification 465,650 is referred to.
Patent GB-155152-A (GB)
Title: Improvements in cigar and cigarette holders
IPC: A24F13/10
Filed: 1920-02-23
Abstract: 155,152. Dietrich, A. H. Feb. 23, 1920. Cigar and cigarette holders.-Relates to a holder with a screwed plunger for ejecting the fag end, and consists in a combination of (1) a mouthpiece A having an internal screw-thread and a slotted extension B with a collar C arranged to rotate in a groove in the holder I, (2) an ejecting screwed plunger E arranged to slide but not rotate within the holder and screw into the mouthpiece and provided with a recess to receive absorbent material M held in place by a screwed sleeve D, and (3) a holder I, all arranged as shown.
Patent GB-1032932-A (GB)
Title: Improvements relating to material washing apparatus
IPC: A47J43/24
Filed: 1962-02-13
Abstract: 1,032,932. Washing fruit and vegetables. W. CUTLER. May 13, 1963 [Feb. 13, 1962], No. 5396/62. Heading A4C. [Also in Divisions A2 and B2] An apparatus for washing fish, fruit or vegetables comprises a screen or grid of bars 24 which is oscillated to cause material fed down a ramp 21 to pass along to the discharge end 26 of the apparatus and is immersed in a washing liquid contained within a trough 15 which is also oscillated. The trough, having side walls 16, 17, 18 is resiliently supported on a base 11 by flexible wooden slats 19 and oscillated through a rod 14a and eccentric 14 by a motor 13. The grid 24 is resiliently suspended in an inclined position by adjustable straps 29 pivotally mounted on flexible wooden slats 31 which are connected at their lower ends to the base of the trough. The supply of water in the trough is replenished through pipe connections 34 in channels 33 disposed one each end of the trough.
Patent GB-1030232-A (GB)
Title: Improvements in and relating to the manufacture of refractory fibres
IPC: C04B35/622
Filed: 1963-02-11
Abstract: Refractory fibres are prepared by a process comprising preparing a concentrated viscous solution containing between 40% and 48% by weight (based on the refractory metallic oxide) of refractory metallic oxide-yielding material, forming fibres from the material and substantially eliminating constituents of the refractory metallic oxide-yielding material other than the metallic oxide by firing at successively higher temperature below the fusion temperature of the metallic oxide.  Oxides referred to are zirconia, zircon, magnesia, thoria, hafnia, ythia and alumina. Zirconia fibres may contain up to 10% by weight of another metallic oxide and crystal structure stabilizer.  Examples relate to production of (a) zirconia fibres from zirconium acetate with calcium acetate as stabilizer, (b) zircon fibres from zirconium acetate and colloidal silica, (c) zirconia fibres from ammonium zirconium lactate, (d) zirconia fibres from trioxodizirconium chloride.  The fibres may be formed by spinning, drawing, extruding, blowing, or combinations of these processes.
Patent GB-1011199-A (GB)
Title: Improvements in rail spikes
Inventor: JEFFREY WALTER JOHN WILLIAM
IPC: E01B9/08
Filed: 1964-02-10
Abstract: 1,011,199. Securing rails to sleepers. COLONIAL SUGAR REFINING CO., Ltd. Feb. 10, 1964, No. 5478/64. Heading E1G. [Also in Division F2] The head of a rail spike comprises a member 6 for engaging the upper sloping surface of a rail bottom flange and a shorter member 7 for engaging the flange edge. The members 6, 7 are the ends of a folded, spring steel spike the legs 2, 3 of which are normally bowed. The ends 6, 7 are each of rectangular section but the main parts of the legs may each be rectangular or semi-circular in section. The spike may be galvanized.
Patent GB-729202-A (GB)
Title: Manufacture of silicone lacquers
IPC: C08G77/06
Filed: 1950-03-03
Abstract: A silicone lacquer is made by mixing one or more silicon halides with a proportion of an alcohol (e.g. ethyl alcohol) which is insufficient for or does not lead to complete reaction, hydrolysing the product with a proportion of water or an aqueous solution of hydrochloric acid which is insufficient for complete hydrolysis, taking up the product with a solvent immiscible or only slightly miscible with water (e.g. toluene), completing the hydrolysis, and heating the product to the desired degree of condensation.  In an example, the starting material is a mixture of methyl trichlorosilane and dimethyl dichlorosilane and the final heating is performed at 140-150 DEG  C. in presence of quinoline.