baber/WOPTO huggingface dataset:
Patent GB-310294-A (GB)
Title: Improvements in and connected with the manufacture and production of stone asphalt roadways
IPC: E01C7/18
Filed: 1927-10-14
Abstract: 310,294. Johnson, J. Y., (Amiesite Asphalt Co. of America). Oct. 14, 1927. Right to Patent relinquished. Macadamized roads are formed by first laying and compacting a void-containing first course of bitumen-coated stone, then laying and compacting a similar second course of bitumen-coated stone graded to a smaller size, and finally sealing and waterproofing the compacted mass by a top course of sand or stone screenings laid between and around the stones at the upper surface of the second course without overlaying the exposed stone surface. Reference has been directed by the Comptroller to Specifications 275,280, 276,538 and 276,866.
Patent GB-918358-A (GB)
Title: Method of making tin plate
IPC: C25D7/06
Filed: 1961-07-27
Abstract: 918,358. Tin-plate. UNITED STATES STEEL CORPORATION. July 27, 1961 [Aug. 5, 1960], No. 27303/61. Class 41. The tin coating of electro-tinned low-carbon steel strip is reflowed, to improve the coating corrosion resistance, by heating the strip, substantially isothermally, above the melting-point of tin, 450 F., but not above 475 F., to " reflow " or brighten its surface; it is heated to this temperature in 0.3 to 0.4 seconds and maintained at temperature for from 1 to 3 seconds. Low-carbon steel strip 10, electrolytically coated with tin passes forward round guide rolls 12, 13, 17 and 18. An induction heating unit 14 raises the temperature rapidly to from 450 to 475 F., and the strip passes between rolls 12 and 17 receiving supplementary heating by electrical connections 19 to compensate for atmospheric cooling; muffle 20 serves to reduce heat losses and may supply supplemental heat from electric resistors or fuel-fired radiant tubes. Supplementary heating of the strip maintains its temperature substantially constant. The strip may be further heated in a unit 15 to a slightly higher temperature, to, say, 470 F., to ensure thorough fusion of the tin coating prior to entering water tank 16 where the temperature drops to 212 F. With unit 15 in use isothermal heating is restricted to 1 to 2 seconds to overcome excessive alloy formation.
Patent GB-1042079-A (GB)
Title: Improvements in or relating to the means of checking shuttles in looms
Inventor: LORD PETER REEVES
IPC: D03D49/52
Filed: 1964-07-02
Abstract: The cam-operated picking stick remains at the selvedge after picking and is moved with, but at a slower speed, to check the arriving shuttle.  The picker is also moved slowly towards the shuttle to contact it prior to picking.
Patent GB-487567-A (GB)
Title: Improvements in and relating to an arm chair
IPC: A47C5/06
Filed: 1937-10-08
Abstract: 487,567. Knock-down seats. AKSE, H. Oct. 8, 1937, No. 27362. Convention date, Oct. 14, 1936. [Class 52 (ii)] A knock-down arm-chair comprises separate side frames with arm rests, and a separate seat portion 3, the front of the seat having pegs 7 engaging in sockets in the side frames and the rear of the seat resting on lateral projections 6 of the' frames, while pegs 8 on a separate back-rest 4 engage in sockets 10 on the side frames. The side frame may comprise parts 1 forming the back leg and foot, merging into parts 2 forming the front leg and arm rest, with a stiffening member 5, the top of the front limb of which forms the socket for the front peg on the seat. The seat and back-rest may be of woven cane &c. on a metal framework, or of wood or metal.
Patent GB-1263657-A (GB)
Title: Improvements relating to irradiation surveillance apparatus for nuclear reactors
IPC: G21K5/08
Filed: 1970-06-05
Abstract: 1,263,657. Reactors. COMBUSTION ENG. Inc. 5 June, 1970 [6 June, 1969], No. 27369/70. Heading G6C. To effect radiation testing of material samples in a nuclear reactor, the samples are contained in capsules placed end to end in a container. A compressive force is applied to the capsules to eliminate vibration during reactor operation. The capsules 20 are coupled together, to form the assembly 10, and are placed in a rectangular section container for insertion in the reactor. The end caps 20a and 20b have complementary angled surfaces which permit relative lateral displacement of the capsules when a longitudinal compressive force is applied at 12. The lateral displacement brings the capsules into engagement with the container inner surfaces. The end caps 20a and 20b are joined by the loosely fitting member 36 retained by the pin 52, the bore 48 having a larger diameter than 36.
Patent GB-353757-A (GB)
Title: Improvements in and relating to multi-pole automatic circuit breakers
IPC: H01H71/00
Filed: 1930-09-15
Abstract: 353,757. Automatic circuit-breakers; FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. Sept. 15, 1930, No. 27472. Convention date, June 23. [Class 38 (v).] Electrically-released switches ; latching and unlatching.-A multi-pole automatic circuit-breaker in which the phase switches may be switched on and released independently of one another, is provided with means to prevent the phase switches being closed when the switch in the neutral wire is open, and to ensure that the phase switches open when the neutral switch is opened. When the neutral switch f opens, a lever o is moved to depress a lever p against the action of a spring r to withdraw a detent s from a notch k and allow a spring l to move a shaft i to open the phase switches c, d, e. They cannot be closed until the neutral switch f is closed to allow the lever p to rise and engage the notch k. The neutral switch contact is constituted to make circuit before the other switches, and to break it afterwards. Specification 336,401, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-426645-A (GB)
Title: Improvements in or relating to the destructive distillation of mixtures of coal and oil
IPC: C10B55/02
Filed: 1933-10-06
Abstract: A coherent coke and light oils are obtained by destructively distilling a mixture of oil and finely powdered coal in an inclined rotary retort, the coal being blended from coking coal having a carbon content of 80--91 per cent and oxygen content 5--14 per cent and noncoking coal having carbon and oxygen content outside this range in such proportions that the carbon and oxygen content of the fluid is within the above range.  The process is preferably carried out according to the conditions described in Specifications 393,601 and 393,602.  One part of coking coal is mixed with two parts of non-coking coal and the mixture is ground for two hours in a rod mill with three parts of an oil obtained in the distillation of a coal oil mixture.  The mixture is then treated in a rotary retort at 450 DEG C. and a small lump coke is obtained which does not adhere to the walls of the retort.
Patent GB-723502-A (GB)
Title: Improvements in or relating to process of producing fume from a refractory material
IPC: C01B33/18
Filed: 1952-11-03
Abstract: Silica in the form of a fume is obtained by admixing 85 per cent thereof with 15 per cent of a coking carbon, extruding as an electrode, maintaining an arc in air with such electrode as anode at a current density at the anode face in excess of the transition point where the tail flame of luminous vapour, projected from the anode, appears and the resistance characteristic of the arc changes from negative to positive, condensing the vapour and collecting the fume.ALSO:Refractories and cements are obtained as a fume by admixing 85 per cent thereof with 15 per cent of a coking carbon and making an electrode therefrom, maintaining an arc in air with such electrode as anode at a current density at the anode face in excess of the transition point where the tail flame of luminous vapour, projected from the anode, appears and the resistance characteristic of the arc changes from negative to positive, condensing the vapour and collecting the fume.  A temporary binder is added to the mixture from which the electrode is extruded.  Specifically, silica fume, for use as a reinforcing agent in rubber, is produced.
Patent GB-427864-A (GB)
Title: A process for the production of thick coatings of nitro derivatives of cellulose on metal foils
IPC: C09D101/18
Filed: 1934-09-26
Abstract: A coating for metal foil may consist of collodion wool 18 per cent, a softener, for example, dibutyl phthalate or tricresyl phosphate 4 per cent, spirit, for example, a mixture of ethyl alcohol and methyl alcohol 18 per cent, acetone 36 per cent, and butyl acetate 24 per cent.ALSO:A method of coating metal foil, for example, aluminium foil, with a coating wholly or partly of nitro-cellulose having a thickness of ,004 mm. or more, consists in spraying or pouring the nitro-cellulose on the metal foil in the form of a solution or emulsion in a liquid or pasty state, and drying the coating at a temperature exceeding 90 DEG  C.  Preferably the temperature during drying is gradually raised to 130 DEG  C. and gradually reduced.  The coating may consist of collodion wool 18 per cent, a softener, for example, dibutyl phthalate or tricresyl phosphate 4 per cent, spirit, for example, a mixture of ethyl alcohol and methyl alcohol 18 per cent, acetone 36 per cent and butyl acetate 24 per cent.
Patent GB-223751-A (GB)
Title: Improvements in machines for boring and facing railway wheels
IPC: B23B5/28
Filed: 1923-11-03
Abstract: 223,751. Clements, A. B. Nov. 3, 1923. Lathes.-A machine for boring and facing railway wheels comprises a non-rotary chuck 1 provided with jaws to grip the rim of the wheel and adapted to be moved transversely of the machine bed, a headstock 6 fitted with a tool-box 7 and rotatably mounted on a hollow spindle accommodating a boring-bar 10, and a second headstock 14 fitted with a tool-box 17 and having a hollow spindle adapted to support the boring-bar. The tool-box 7 carries a tool 12 adapted to be used on the face of the hub 13 simultaneously with the operation of the boring-cutter 11. The tool-box 17 carries a tool 18 which protrudes through an aperture in the chuck 1 and operates on the back face of the hub. A reamer 20 mav be associated with the boring-cutter.
Patent GB-244570-A (GB)
Title: Improved anti-dazzle device for the lamps of road vehicles and the like
IPC: B60Q1/14
Filed: 1925-09-21
Abstract: 244,570. Edwards, J. L. Sept. 21, 1925. No Patent granted (Sealing fee not paid). Lantern gratings. - -An anti-glare device for vehicle or like lamps comprises an external attachment carrier 1 provided with a glass or other transparent front cover 7 and containing a series of superimposed flat or transversely bowed, metallic plates 2 arranged substantially horizontally from front to back across the front of the lamp, the whole or the lower portion of the front edges of the plates being inversely stepped so that the front of one plate extends slightly beyond the adjacent plate below and the back edges being in close proximity to the lamp glass 11. The carrier 1 is secured to the lamp body 6 by means of links 9 jointedly connected to a split band 8 provided with a screwed or like contracting means 10, the cupped edge 4 of the carrier engaging with the bezel 5 of the lamp.
Patent GB-468678-A (GB)
Title: Improvements in sensitive photographic elements
IPC: G03C1/76
Filed: 1935-10-09
Abstract: 468,678. Photographic sensitive materials. KODAK, Ltd. Oct. 9, 1935, No. 27874. Convention date, Nov. 1, 1934. Drawings to Specification. [Class 98 (ii)] A gelatino silver halide emulsion has a wax dispersed in the emulsion or in a protein layer unitary therewith before coating on the support. Carnauba wax, natural waxes such as beeswax, Montan and cantol wax, mineral waxes, such as paraffin wax, and synthetic waxes such as chlorinated naphthalene and chlorinated diphenyls may be used. The wax dispersion in water is added to the emulsion along with a dispersing agent, e.g. triethanolamine oleate, the temperature being maintained at 40‹ C. “-25 parts by weight of wax to 100 parts of gelatine may be used. In a modification, a composite layer comprises an inner gelatine silver-halide layer over which is a layer of gelatine or casein with the wax dispersed therein.
Patent GB-316470-A (GB)
Title: Improvement in locking device for pneumatic percussive tools
IPC: B25D17/04
Filed: 1928-09-28
Abstract: 316,470. Marks, Sir G. C., (Ingersoll- Rand Co.). Sept. 28, 1928. Percussive tools.-The head 0 of a percussive tool such as a sand rammer is locked to the barrel by means of a toothed key U which engages undercut teeth on the head and is pulled bv a spring W anchored to the band. A sleeve Z may be arranged round the key, forming also a baffle for the exhaust escaping through ports (not shown) in the cylinder wall.
Patent GB-1332624-A (GB)
Title: Threading die head
IPC: B23G5/12
Filed: 1972-06-14
Abstract: 1332624 Threading die head GEORG FISCHER AG 14 June 1972 [14 June 1971] 27890/72 Heading B3N  A threading die head comprises an annular die carrier 1, dies 2 mounted in radial slots in the die head, a slide bushing 6 threadedly connected to a flange 5 to which holding rods 4 are attached, cams 3 for controlling movement of the dies and a sensing pin 7 with an annular groove 10 therein; the slide bushing 6 has balls 11 mounted in slots 11a, the balls shown engaging in recesses 13 in the die carrier 1, springs 14 bias the flange 5 outwardly. In operation the die head is mounted in a thread cutting device by cams 22. When a thread has been cut the workpiece 8 engages an end surfaee 9 of the sensing: pin 7. The pin is thus moved relative to the slide bushing until balls 11 can move into groove 10. This releases the slide bushing such that springs 14 move flange 5 and thus rods 4 and cams 3 outwardly, the cams moving the dies into a disengaged position. Resetting is achieved by pushing pin 7 inwardly. Outward movement of the flange can be limited by screws that extend through the flange into die carrier 1, the head of the screw being offset axially relative to the flange when the parts are positioned as shown. Screw 15 prevents relative rotation between slide bushing 6 and flange 5. Spring biased ball 16 prevents accidental movement of sensing pin 7. Fig. 3 shows a modification wherein die carrier 1 includes a screw threadedly adjustable bushing 28 in which slide bushing 6<SP>1</SP> is mounted. A shoulder 33 on bushing 28 coacts with collar 34 to limit movement of pin 7<SP>1</SP>. Axial adjustment of bushing 28 controls the length of thread machined on a workpiece. A device 30 prevents rotation of bushing 28.
Patent GB-655740-A (GB)
Title: Improved brake for road vehicles
Inventor: STOCKS HARRY RONALD
IPC: F16D65/46
Filed: 1948-10-27
Abstract: 655,740. Internally - expanding brakes. VAUXHALL MOTORS, Ltd. Oct. 27, 1948, No. 27891. [Class 103 (i)] Adjustment of the shoe clearance in an internally expanding brake is carried out by rotation with a suitable spanner of the hexagonal end 8 of a two-part screwed member, of which the other forked end 9 is pivoted to the end of the leading shoe 5, the end 8 being rounded and pivoting in a spherical cavity in a part 3 pressed out of a bracket 2 secured to the backplate 1. Adjustment of the length of the two-part member 8, 9 is transmitted to the actuator, which may be of any known type and is capable of limited displacement by its mounting in the slots 7, so that the movement is also transmitted to the trailing shoe 6 which pivots about a fixed abutment adjacent to the mounting of the member 8, 9.
Patent GB-638180-A (GB)
Title: Improvements in or relating to motion picture sound film scanning apparatus
IPC: G11B7/00
Filed: 1947-10-17
Abstract: 638,180. Sound film apparatus. KODAK, Ltd. Oct. 17, 1947, No. 27892. Convention date, Oct. 19, 1946. [Class 40 (ii)] [Also in Group XL (b)] In sound film scanning apparatus, the light beam is interrupted by a vibrating reed 14 to compensate for variations in the brightness of the exciter lamp 10 which is fed with alternating current. The light from lamp 10 is focused through cylindrical lenses 18, 19 and 22 and stops 20 and 21, on to the sound track of a film 12, through which the beam passes to photo-electric cell 13 to provide the sound output. The reed 14 which projects into the light beam, is vibrated by means of an electromagnet 15 which is fed with current from the same source as lamp 10. The amplitude and phase of the reed vibrations are adjusted, respectively, by means of core 31, and a resistance connected in series with the magnet winding, so that the effect on the light beam compensates for the changes in brightness of the lamp 10 due to the A.C. supply. The position of the reed may also be adjusted by means of screw 28. The resonant frequency of the reed is made slightly different from twice the value of the supply frequency. A channel 27 is provided to effect air damping of the reed to prevent microphony.
Patent GB-1059267-A (GB)
Title: Improvements relating to pivoted windows, ventilators and the like
Inventor: MARCHBANK JOHN
IPC: E06B3/34
Filed: 1964-07-07
Abstract: 1,059,267. Reversible windows. BULL'S METAL & MARINE, Ltd. May 20, 1965 [July 7, 1964], No. 27988/64. Heading E1J. In a reversible window in which the horizontal pivots 16 of the sash 10 are concealed and extend between uninterrupted vertical bars 1, 9 at least one viz 1, of the bars being provided with resilient sealing strips 8 coacting with a continuous flat surface 9 of the opposing bar, the strips 8 are carried by an elongated member 6 extending parallel to the bar 1 and is adjustable by means of screw and bolt (12) (not shown) towards or away from the bar 9. The horizontal sash bars are also provided with double weather seals against the horizontal frame bars. A stop in the form of an adjustable latch or turnbuckle is concealed in the hollow frame bar 10.
Patent GB-387762-A (GB)
Title: Improvements in and relating to transformers for use at high potentials
IPC: H01F30/10
Filed: 1931-10-08
Abstract: 387,762. Transformers. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 8, 1931, No. 28008. Convention date, Oct. 21, 1930. [Class 38 (ii).] A transformer for use in circuits in which a high initial potential is applied to the secondary winding, such as a voltage-doubling rectifier circuit or a system of transformers having their secondary windings connected in series, has the side walls 1 of its container made of insulating material and of a height sufficient to insulate against the initial potential. The end V of the winding 8 is connected to the core 4 which is attached to the cover 3, the other terminal U being insulated therefrom by a bushing 9. The lower end of the core is supported on insulating struts 5, 6 and is screened by a metal hood 10 and insulating shields 11, 12. If the cover is of insulating material the bush 9 may be dispensed with, the terminal V, connected to the core, projecting through the insulating side wall of the casing. The winding 8 may be divided into sections and after insulating each section, two sections are brought together and wound with insulating paper strip. Another section is added and the whole again wound with insulation and so on, so that the section at the highest potential has the greatest number of layers of insulation.
Patent GB-304373-A (GB)
Title: Improvements in hydraulic packing
IPC: F16J15/32
Filed: 1927-10-21
Abstract: 304,373. English Electric Co., Ltd., and Seewer, P. W. Oct. 21, 1927. Piston packing.-Hydraulic piston packing comprises an endless ring 3 of india-rubber &c. having a shallow recess 6 at the back to which pressure fluid is admitted through passages 7. The pressure may be partially balanced by fluid admitted to a groove in the working surface through perforations from the space 6. The depth of the ring is such that, in the absence of fluid pressure, only a small clearance exists at the working surface. Specification 186,233 is referred to.
Patent GB-1007180-A (GB)
Title: Doppler radio navigation equipment
Inventor: EARP CHARLES WILLIAM
IPC: H01Q3/24
Filed: 1962-07-20
Abstract: 1,007,180. Doppler navigation. STANDARD TELEPHONES & CABLES Ltd. July 20, 1962, No. 28061/62. Heading H4D. In Doppler radio navigation equipment including a generally circular arrangement of antennas, the antennas are coupled, two at a time, in repeated sequences, to respective first and second channels in the equipment, the arrangement and the coupling sequences being such that the thereby simulated movement of the antenna coupled to the first channel relative to that coupled to the second channel is around a circle of diameter less than the general crosssection of the antenna arrangement. The invention is part described as applied to a radio beacon, wherein the allowed greater extent of the antenna arrangement may enable an aircraft etc. to land inside the arrangement, and to a direction finding arrangement. In the case of a radio beacon the reference signal, generated in synchronism with the coupling sequence is applied as A.M. to one of the channels for detection at the aircraft etc. 1. Radio beacon, Fig. 3.-In this arrangement the pairs of antennas are spaced #/2 apart   and the general diameter of the arrangement is as large as is practicable. The two channels are connected to the antennas in the following sequence:- producing at an aircraft etc. the equivalent of two frequency sources rotating, relative to each other, around a circle of #/2 radius, each switching step producing a relative rotation ## # of - or about   -. The altitude of the air- 10 3 craft may be found by comparing the magnitude of the Doppler beat frequency at the aircraft, with that obtainable at ground level. Suitable aircraft may also be guided down on the axis of the arrangement, where the said amplitude is zero. 2. Direction finder, Figs. 4A, 4B.-In this arrangement the V.H.F. signal is picked up by the seven antennas and switched to the two channels, by means of the rotating capacitive pick off devices 14 and 15, in the following sequence:- producing an equivalent relative rotation between the two channels of 2#/14 per step. The   outputs from devices 14 and 15 are coupled through slip rings to a beat detector 16, a frequency shift of 9960 c./s. being introduced into the output from device 14 by a frequency changer 17. The resulting 9960 c./s. beat signal having a superimposed Doppler F.M. signal is then passed to an F.M. discriminator where the Doppler signal is extracted. This is then compared in phase with a reference signal fed over wire 20 generated in sync. with the rotation of the pick-off devices, to give the required direction information.
Patent GB-254944-A (GB)
Title: Improvements in and relating to processes and devices for concentrating solutions, even those liable to incrust to a great extent and corrosive
IPC: B01D1/26
Filed: 1925-11-07
Abstract: 254,944. Bringhenti, P. Nov. 7, 1925. Evaporating by contact with hot liquid; separate heater and evaporator apparatus; progressive evaporators. - In concentrating liquids such as acid or alkaline solutions, which are corrosive or tend to form incrustation, the liquid is heated by passage through it of a heat-ed immiscible liquid such as melted paraffin wax, and the heated liquid is passed into a vapour separating chamber. The liquid supplied to a vessel R through an inlet J is heated by paraffin wax forced through a perforated pipe s, by a pump P<1> from a vessel C in which it is heated by steam or hot gases passed through from a perforated pipe F. The paraffin rises through the vessel R and passes into a separating vessel S, from which it returns to the vessel C by a pipe M while solution carried over by it is returned to the vessel R by a pipe m. The heated solution passes from the base of the vessel R through a pipe T terminating in a perforated nozzle which sprays it into a vessel V. Vapours pass away by a pipe A and the solution is returned by a pump p<2> to the vessel R. The vessel V may be placed above the vessel R. In an apparatus comprising a series of evaporators through which the liquid passes in succession, the vapours from one evaporator are used to heat paraffin wax for use in the next evaporator. The vapours pass upwards through a vertical chamber down which the paraffin passes in the form of a rain. These chambers and the final evaporator are connected to a jet condenser.