baber/WOPTO huggingface dataset:
Patent GB-785274-A (GB)
Title: Artillery cartridge-cases and their manufacture
IPC: B21D51/54
Filed: 1956-03-21
Abstract: 785,274. Cartridge cases. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. March 21, 1956 [May 3, 1955], No. 8840/56. Class 9(1) [Also in Group XXII] An artillery cartridge case comprising a cylindrical or frusto-conical tube 1 and a steel base 2 is assembled and held together by a washer 3 pressed against the inturned end 4 of tube 1 and secured by expanding a crown 5a of the base against the bevelled inner edge of the washer 3. The washer is inserted before turning in the end 4 of tube 1 and a hollow punch 6 is used to hold the washer against the end 4 until the crown 5a has been deformed by a punch 7.
Patent GB-108842-A (GB)
Title: Improvements relating to Spindle Driving Arrangements of Spinning, Doubling and Twisting Machines for Yarns and Threads of Fibrous Substances.
IPC: D01H1/241
Filed: 1916-07-13
Abstract: 108,842. Renshaw & Fallows, and Fallows, J. H. July 13, 1916. Driving-arrangements.-In spinning, doubling, and twisting machines of the kind in which the spindle C and carrier A<2> on which the ring and traveller are mounted, are driven by separate cylinders c<1>, a<17>, the former of which partakes in the rising and falling movements of the lifter rail. a flexible driving connexion f passes over a wheel a<18> on the shaft of the cylinder a", under a wheel c<2> on the shaft of the cylinder c', over a wheel d' situated above and to one side of the wheel c<2> and rigidly connected therewith, and finally over a fixed wheel F.
Patent GB-254030-A (GB)
Title: Improvements in electromagnetic separators for the separation or concentration of minerals
IPC: B03C1/253
Filed: 1925-04-03
Abstract: 254,030. Koizumi; M. April 3, 1925. Magnetic separators.-In an electromagnetic separator for separating or concentrating minerals of the kind in which the separation &c. is effected by a rotary or shifting field created by a polyphase alternating current, the mineral mixed with water is fed into a chamber 1 divided into an upper hopper part 2, a separating chamber 3 and a lower part subdivided into a tailings chamber 4, a middlings chamber 5 and a concentrates chamber 6. The mineral passes from the hopper 2 through an adjustable opening 9 between a fixed bottom 7 and a movable bottom 8 into the chamber 3 where it is forced by water sprayed from a perfotated pipe 11 on to a bottomless dish 12. Below the dish 12 are separators 14 in the shape of bottomless dishes in the inner circumference of which are thin plates or vanes 15 which extend downwardly and towards the wall of the vessel 1. The material coming into contact with the vanes 15 is given a rotary motion and is then acted upon by the magnetic field produced by a magnet 17 surrounding the vessel 1, the particles of pure mineral being caused to move up the surfaces of the dishes 14 into a passage 13 from whence they pass into the chamber 6. The middlings or next purest concentrates fall into the chamber 5 and the impurities fall from the inner edges of the dishes 14 into the chamber 4. A cylinder 16 supported by the bottom 8 is inserted in the space between the vanes 15 to assist the separation. In a modification, the tailings are led to a second series of dishes 14, an additional water spraying; pipe being used, and the magnet may be mounted inside the chamber 1. In a further modification in which a shifting field is used the field is produced by a flat magnet mounted on each side of the container 1.
Patent GB-306735-A (GB)
Title: Improvements in thermostatically operated valve devices
IPC: F23N5/04
Filed: 1928-03-24
Abstract: 306,735. Keith & Blackman Co., Ltd., J., and Keith, G. March 24, 1928. Thermostats.-A thermostat having an annular lift valve member 12 actuated by the differential expansion of a concentric rod 15 and tube 16 has the valve member mounted on the screw threaded part of a non-rotary spindle 14 and connected to a toothed wheel 24 engaging a pinion on a shaft 26 projecting through the cover 7. The valve member has a contacting face 13 adapted to engage a ridge 8 provided with an arcuate port 10 leading to a chamber 5 provided with alternative threaded inlet openings 2. The outlet 3 is connected to the space within the inner seat and through ports in the valve member with the chamber 6 above the valve member. The valve spindle 14 has a key way 14<1> engaging a key 14<11> and rests at its lower end on a collar 15<1> secured to the rod 15 which is pointed at its lower end to engage a recess in a block 18 secured to the tube 16. The valve member has a pin 31 engaging a slot 32 in the toothed wheel 24 which is rotatably mounted on the boss 22 housing the loading spring 20. The adjusting spindle 26 which is normally enclosed in a cap 29 is acted on by a spring washer 27 so as to hold a cross pin 25" in a recess in the lower face of the pinion whereby it may be rotated until excessive resistance is encountered. The toothed wheel is supported by the heads of screws 35.
Patent GB-1060924-A (GB)
Title: A wall element for prefabricated buildings
IPC: E04C2/52
Filed: 1965-03-02
Abstract: 1,060,924. Laminates. G. LœTZE. March 2, 1965 [March 12, 1964], No. 8954/65. Heading B5N. [Also in Division E1] A wall panel (see Division E1) comprises a frame 12 having an impervious metal (e.g. aluminium) outer casing 10, a pervious inner facing panel 14, and a pervious foamed plastics filling 13 incorporating vertical passages 15a through which air can circulate to remove water vapour penetrating from a room 19. The passages 15a may be provided by cardboard tubes embedded in the plastics 13 while it is foamed in situ, or (Fig. 1b not shown) by channels formed in the face of a plastics block inserted in the casing 10. Alternatively the channels may be provided by corrugating the casing 10 and covering the troughs thereof with a pervious sheet before moulding the foamed plastics.
Patent GB-292285-A (GB)
Title: Improved construction of hinge for artificial limbs
IPC: A61F2/58
Filed: 1927-04-01
Abstract: 292,285. Steeper, H., and Hoare, C. G. April 1, 1927. Limbs, artificial. - A joint for artificial limbs having movement in two directions from one pivotal joint comprises a bifurcated hinge-piece H pivoted to a ring member 13 which is rotatably mounted on a stud D on the complemental part A. The ring B may be carried in a groove E formed by bearing blocks C, and is provided with oppositely projecting pivot pins G carrying the piece H. A ball bearing may be located between the parts B, C.
Patent GB-1531730-A (GB)
Title: Liquid crystal devices
IPC: G02F1/1337
Filed: 1976-03-03
Abstract: 1531730 Controlling light DEFENCE SECRETARY OF STATE FOR 3 March 1976 [4 March 1975] 9032/75 Heading G2F In a cell of the type comprising a layer of liquid crystal material between two electrode bearing substrates, the liquid crystal material has a small negative dielectric anisotropy and a large positive conductivity anisotropy, and the substrates are treated so that the liquid crystal director in the interior of the layer, in the absence of an electric field, is somewhat inclined to the substrate surface normals, whereby when a voltage is applied between the electrodes the liquid crystal molecules tend to reorientate parallel to the plane of the layer in a single sense. If the director was at 90 degrees to the substrate the molecules could tip either clockwise or anti-clockwise, and it is said that this gives rise to local positive and negative space charge regions which move in the field to give Williams domains, and eventually a dynamic turbulence at higher fields. The characteristics of the liquid crystal material are such as to cause rapid realignment at a first threshold voltage, the original alignment being re-attached only when the voltage is reduced below a second threshold lower than the first, i.e. a hystersis effect. As described the cell exhibits variable birefringence and is disposed between polarizers, either without or with one or more interposed birefringent layers, or the liquid crystal material incorporates a dye for variable absorption, with or without a polarizer. Both the substrates may be treated with lecithin, at least one being uni-directionally rubbed to effect the inclined orientation. Rubbing of the second substrate should be parallel and opposite to that of the first. Alternatively at least one substrate has a coating of MgF2 or SiO oblique evaporated at about 5 degrees to its surface. The angle between the substrate normals and the director in the interior of the layer is preferably 1-2 degrees. The electrodes may be shaped or provide an X-Y coincidence addressed matrix.
Patent GB-566334-A (GB)
Title: Improvements in or connected with diamond polishing tools or devices
IPC: B24B9/16
Filed: 1943-06-07
Abstract: 566,334. Polishing diamonds. SCHON, L. June 7, 1943, No. 9070. [Class 60] A tool for polishing diamonds comprises a bar 1 having a widened part 1a at one end carrying two adjustable screws 2 and a rearwardly projecting rod 3, the other end of the rod having therein a hole receiving a plug 4 adjustable axially by a screw 5 and prevented from rotation by a pin 6 engaging a slot in the plug. At the lower end the plug has an annular groove 7 engaged by a screw 9 in a ring 8 which has thereon two projecting plates 10, 11 having therein holes to receive the trunnions 13, 14 of a trunnion member 12 forming the actual dop. In the member 12 is rotatably mounted a tubular core 15 having a knurled head 16 resting on the members 12 and held against axial movement by a spring ring 17 ; the lower end of the core 15 is conical and the core has therein sixteen recesses with any one of which may engage a spring-pressed ball 18 mounted in the trunnion 12. The member 12 is set angularly in the plates 10, 11 by means of a pointer 21 and a scale and a nut 20 on the trunnion 13. The lower part of the bore 15 is tapered and the upper part parallel to receive a slidable sleeve 22 screwed internally and externally and prevented from rotation by a pin 27, and in the lower end of the sleeve may be screwed a collet chuck 23 tightened by a knurled nut 24 screwing on the sleeve ; within the sleeve is a screwed plug 25 carrying a pin 26. The diamond is held in the chuck and an auxiliary clamp is provided comprising a screw 30 in an arm 29 mounted on a post 28 projecting from the member 12 ; for polishing the top part of the diamond a pivoted arm carrying a pin is used in place of the arm 29 &c. In operation, the screws 2 rest on a table 36 level with the lap 37, the diamond is adjusted by the various means described above to bring the facet into required position and lapping proceeds until the arm 1 contacts an adjustable stop 39 carried by the table 36 ; another facet then is positioned and lapping proceeds as before. In a modification, the plug 4 is rotatably adjustable in the arm 1 and is in two parts adjustably pivoted by a transverse screwed pivot, which serves also to lock the parts in adjusted position. The stop 39 may operate in conjunction with an electric contact controlling an electric bulb, a bell, or other alarm to indicate when polishing is completed.
Patent GB-499695-A (GB)
Title: Process for the production of artificial threads or fibres by the stretch-spinning method
IPC: D01F2/06
Filed: 1938-03-24
Abstract: Artificial fibres or threads of cellulose, fibroin, casein and the like are prepared by spinning into a precipitating medium moving in concurrent flow therewith and at a progressively increasing velocity, the concentration of the precipitating medium being also increased progressively as the coagulation proceeds, whereby the fibres are drawn out and stretched by the movement of the precipitating medium. In an example, viscose is spun into a spinning funnel into which is led water at the top, 5 per cent solution of sodium chloride at a lower level, and 10 per cent solution of sodium chloride at a still lower level.  In a second example, four funnels are used, the first being supplied with water, the second with 2 per cent ammonium chloride solution, the third with 5 per cent ammonium chloride solution, and the fourth with 10 per cent ammonium chloride solution. In a further example, the liquids used are water, 2 per cent ammonium chloride, 5 per cent ammonium chloride, 10 per cent ammonium chloride, and a 3-5 per cent sulphuric acid solution, respectively.
Patent GB-983233-A (GB)
Title: Improvements in and relating to spray coating apparatus
IPC: B05B5/16
Filed: 1961-03-13
Abstract: 983,233. Coating-apparatus. RANSBURG ELECTRO - COATING CORPORATION. March 13, 1961 [March 14, 1960], No. 91209/61. Heading B2B. [Also in Division F2] An apparatus for electrostatically spraycoating an article comprises an atomizer device for atomizing liquid coating material supplied thereto, means to supply liquid from a source to the atomizer device at substantially constant pressure, means electrostatically to charge the atomized particles and for electrostatically effecting their deposition upon the article, a fluid flow control valve comprising first and second elements each having a thin plate-like portion not exceeding fifty thousandths of an inch in thickness with an opening in said portion, means to bias the elements so that the said portions are urged together, and means to adjust the transverse relative positions of the elements whereby the degree of overlap between the openings is controlledly variable, for regulating the flow of liquid to said atomizer device, and a further, on-off, valve for initiating and terminating the flow of liquid to said atomizer device. In the apparatus described, earthed articles 10 are conveyed past a rotary electrostatic atomizer 12. Paint of different colours is continuously circulated from tanks such as 15 to valves such as 19, 19<SP>1</SP> and 19<SP>11</SP> and back to the tanks; when it is desired to spray paint of a particular colour, the appropriate valve is opened by applying air pressure to the line 27, 27<SP>1</SP> or 27<SP>11</SP>. The construction of the valves and of the delivery conduits 26 &c., which terminate in a capillary tube, is such that on closing a valve the valve and delivery conduit remain full of paint, ensuring accurate timing of the spray and preventing drying out or settling of paint in the conduit. In an alternative embodiment, Fig. 5 (not shown), a valve of the construction described is included in a hand-held rotary electrostatic spray gun fed with paint by means of applying compressed air to the paint container.
Patent GB-421807-A (GB)
Title: Improvements in and relating to brakes
IPC: B66D5/02
Filed: 1933-03-27
Abstract: 421,807. Winding - apparatus. PARKERSBURG RIG & REEL CO., 620, Depot Street, Parkersburg, West Virginia, U.S.A. March 27, 1933, No. 9154. Convention date, March 26, 1932. Drawings to Specification. [Class 78 (v)] [See also Group XXXIV] Hoisting and braking apparatus for welldrilling rigs comprises a hand brake and a fluid friction brake consisting of a rotor and a stator containing liquid and having recesses so arranged that small resistance is offered to the shaft in a direction to raise the load but increasing resistance to a descending load. An electric motor is connected by a jaw clutch to a shaft on which is mounted the hoisting reel and the hand and fluid friction brakes. The liquid is circulated between the brake and a supply tank by means of nozzles in the stator recesses, flow through which to the recesses is induced by the rotation of the rotor owing to the position and arrangement of the nozzles. The circulation may be assisted by radially movable pump elements in the rotor the liquid being forced to an elevated storage tank and cooling tower, or by an external pump in which case sluice gates control the communication between the recesses in the stator and rotor.
Patent GB-1175967-A (GB)
Title: Improvements in and relating to the control of chemical processes.
Inventor: HAMSHERE WILFRED CHARLES
IPC: G01N31/02
Filed: 1967-10-09
Abstract: 1,175,967. Photo-electric turbidometers. MARCHON PRODUCTS Ltd. Oct. 9, 1967 [Oct. 14, 1966], No.9187/68. Divided out of 1,175, 966. Heading G1A. The sulphate ion concentration of a solution is determined by passing the solution, free from suspended solids, together with a solution containing barium ions into a mixing chamber designed to inhibit the adherence of barium sulphate, passing the mixed solutions to a turbidimetric cell, illuminating the mixture in the turbidimetric cell and measuring the ratio of the amount of light transmitted through the mixture to the amount of light scattered therefrom. A metered quantity of a sample extracted from a wet process phosphoric acid reactor by the method disclosed in Specification 1,175, 966 is diluted with a measured quantity of water and mixed with a measured quantity of barium chloride in a mixing chamber. The mixing chamber is made of P. T. F. E. or provided with ultrasonic vibration to prevent adherence of barium sulphate. The amount of barium sulphate precipitated is measured in a turbidometer in which light is alternately passed along paths at 90 degrees to one another and a photo-cell measures the ratio of the transmitted to scattered light. The light beams may be derived from a common source and may be modulated by a rotating chopper.
Patent GB-374547-A (GB)
Title: An improved automatic friction clutch
IPC: F16D13/04
Filed: 1931-03-26
Abstract: 374,547. Free - wheel clutches ; variable-speed gearing. BOLTON, A., 13, Windy Nook Road, Gateshead, and ENGLISH, J., North Leam, Felling-on- Tyne. March 26, 1931, No. 9191. [Class 80 (ii).] An automatic free-wheel clutch, which may be used in motor vehicle variable-speed gearing, of the kind comprising a conical nut c<1> threaded on a shaft a and movable under the influence of the torque into frictional engagement with a coned female part h<1>, is provided with control means comprising three, or other number of, sunk keys d each with a projection el engaging a keyway in the nut at right-angles to its thread, so that axial movement of the key travels the nut on its thread. The nut can be disengaged, moved into such engagement that play of the projection e<1> in its keyway allows driving with free-wheeling, or moved further into engagement and locked there against disengagement by the projection. In the free-wheel position the key acts as a stop to keep the nut in light dragging contact with the part h ; and in the final position it acts as a wedge to prevent disengagement. One, two, three or more clutches cl, c<2> may be mounted on a common shaft and controlled by a common key d as shown in Fig. 3 or set of keys so that one clutch is engaged whilst the other is disengaged. The keys may be operated by an external sliding collar v, Fig. 4, or by a bar sliding within the shaft which is then hollow. The keys may slide helically and the key way in the nut be axial. In the four-speed gear shown in Fig. 4 two such clutches c<1>, c<2> are arranged on a driven shaft q and controlled through a selector fork w by a common key d to yield either direct-drive through clutch c<1> or third speed through a countershaft splined wheel t and clutch c<2>. In an intermediate neutral position, the key d holds both clutches c<1>, c<2> out of engagement. Second speed is obtained by engaging a countershaft automatic clutch c<3> by means of a key d<1> and first speed is through a sliding pinion o splined on the countershaft. There is an interlock between the operating rods x for the keys d, d<1> so that neither rod can be moved from the neutral position until the companion rod has been returned thereto. This interlock comprises a ball engaging recesses in each rod x. The automatic clutches are engaged through springs z so that the ratios may be preselected by the usual gate-guided lever, and rendered effective only on releasing the main clutch of the wheel or closing the engine throttle.
Patent GB-486243-A (GB)
Title: Improvements in and relating to the manufacture and production of alkali cellulose
IPC: C08B1/08
Filed: 1937-03-31
Abstract: Alkali cellulose is produced by passing a continuous sheet of cellulose through a mercerizing bath, subjecting the impregnated sheet to light pressure to remove part of the excess bath solution, and finally drying it by applying pressure to it while in contact with non-impregnated cellulose.  The drying process may be carried out by passing the impregnated sheet, with a continuous sheet of non-impregnated cellulose in contact with each face, through squeezing rollers.  The partly impregnated drying sheets can be completely impregnated by the same process, while the impregnated cellulose sheet formed may be milled or ground into small pieces at once or after a period of ripening.  The cellulose sheet may be corrugated before entering the mercerizing bath by passing it between fluted rollers as described in Specification 486,242.
Patent GB-576858-A (GB)
Title: Improvements in tool holders for lathes or like machines
IPC: B23B29/24
Filed: 1944-05-13
Abstract: 576,858. Tool - holders ; turning. SWINDEN, F. W. May 13, 1944, No. 9200. [Class 83 (iii)] A tool-holding rig having two tools 15, 16 which are adjustable relatively to each other, consists of a shank 1 having a head 2 with an inclined surface 3 and a lateral extension 4, the tool 16 being clamped by set-screws in an aperture 18 in the head. The, tool 15 is similarly clamped in an aperture 17 in a block 6 resting against the extension 4 and clamped to the head 2 by screws 11. A cylindrical pin 9 engages recesses 8, 5 in the inclined faces of the block and head so that the block may be rocked about the pin to adjust the cutting- edges of the tools to an exact distance apart, pairs of spherically faced washers 13 being placed between the head of each screw 11 and the block 6 to accommodate inclination of the block. The range of adjustment may be increased by inserting the tool 15 in a second aperture 17<1> in the block.
Patent GB-622858-A (GB)
Title: Improvements in devices for thread rolling
IPC: B21H3/04
Filed: 1947-04-08
Abstract: 622,858. Rolling screw-threads. FORSTER, A. April 8, 1947, No. 9264. [Class 83 (iv)] In a rolling device such as is used for threading cycle spokes, the rolls R are free to move endwise on the spindles P<SP>1</SP>, P<SP>2</SP>, P<SP>3</SP>. The spindles have waisted parts N and are inclined outwards. The work may be removed after threading without reverse rotation of the spindle A, the release of the endwise pressure applied for the rolling causing the rollers to slide on their spindles to positions where they are out of contact with the work-piece. The end part C of the body is cut axially to form three sectors, each bored to receive a roller spindle. The pass is adjusted by screws L which close in the sectors against the resilience of a waist V. The length of thread rolled is adjusted by the position of the abutment W, or a plug inserted in the centre hole of the part C. In a modification the spindles have no waisted portions, the final stage of the thread then being tapered.