baber/WOPTO huggingface dataset:
Patent GB-1114959-A (GB)
Title: A dummy shuttle
IPC: D03J5/00
Filed: 1967-05-11
Abstract: 1,114,959. Dummy shuttles. RUTI MACHINERY WORKS Ltd. 11 May, 1967 [11 May, 1966], No. 22022/67. Heading DIE. A dummy shuttle 11 has a recess 17 at its back to avoid trapping the end 18<SP>1</SP> of the weft against the reed 12. The recess may have a pad 16 of fur pile fabric &c. The weft is blown into the shuttle through an aperure 13 and, as the shuttle is picked, enters spring loaded clamps 14 which hold the weft during part of the picking. The trailing end of the weft is then clamped and, during the remainder of the picking, the free end of the weft is pulled out of the shuttle. An embodiment (Fig. 3, not shown) is described having one central aperture in place of the two apertures 13 of Fig. 1.
Patent GB-625550-A (GB)
Title: Coal mining machine
IPC: E21C29/20
Filed: 1947-08-08
Abstract: 625,550. Mining-machines. JOY MANUFACTURING CO. Aug. 8, 1947, No. 22055. Convention date, Nov. 24, 1939. [Class 68 (i)] Relates to coal-mining machines provided with safety mechanism to prevent backrunning if the cable-feed mechanism fails when cutting upwardly in inclined seams. The machine comprises a motor shaft 15 driving through gears 16, 17, 19, a gear 20 fixed to a shaft 21 from which, through gearing 22, 23, 25, a gear 26 is driven. Through a rotatable nut 59 and fixed threaded sleeve 60, a rod 53 may be moved axially and act through shipper 33, and disc clutch 30 to connect gear 20 to a worm sleeve 27 surrounding shaft 21 and thereby, through worm wheel 29, shaft 65, gear 66 and internal gear 67, drive at high speed a cable-feed drum 12 ; on opposite movement of rod 53, variable low-speed drive is applied to the drum 12 through an axially movable pin 39, Fig. 6, actuated by a cam 38 on gear 26 and acting through pivoted lever 42, rod 45, spring 48, shipper 33 and disc clutch 31 to connect gear 26 to worm sleeve 27 and apply low-speed drive to the drum 12. Shaft 65 also drives through gear 73 an internal gear 72 adapted, through a disc clutch 78 controlled by hand wheel 83 and screw 82, to drive a safety drum 75 to wind in a safety cable 76 anchored ahead of the machine ; the safety drum is of slightly larger effective diameter than the feed drum so that the safety drum tends to haul in the safety cable at a slightly higher speed than drum 12 hauls in feed cable 13, slip of over-clutch 78 providing for take up of such extra speed. If the cable feed 12, 13 fails, a pawl 93 co-operates with a ratchet 92 secured to the safety drum to prevent back-running of the machine. The pawl 93 is pivoted centrally and is controlled through a pivoted lever 96 and spring-pressed plunger 95 to allow for reversal of the direction of cutting. The Specification as open to inspection under Sect. 91 states also that the safety drum may be of the same diameter, but driven at a slightly faster rate than, the feed drum. This subject-matter does not appear in the Specification as accepted.
Patent GB-1069405-A (GB)
Title: Method in the manufacture of cellulose pulps from chips in grinding apparatus
IPC: D21B1/12
Filed: 1964-05-28
Abstract: 1,069,405. Grinding wood. DEFIBRATOR A.B. May 28, 1964 [May 31, 1963], No. 22064/64. Heading B2A. [Also in Division D2] Wood pulp for making paper is obtained in high yield (85-95%) by heating wood chips under steam pressure at above 100C. for a time short enough to minimize or avoid discoloration, and then defibred in two steps between grinding members. The first defibration step is carried out in a defibrator at high pressure and temperature, the second in a refiner at an intermediate pressure and temperature and the pulp obtained is cooled by a rapid reduction of pressure. Chemicals that have a bleaching effect at the time of defibration or facilitate a subsequent bleaching are supplied in a solution or suspension to the chips just before they pass between the grinding member of the first ur each step. As shown, chips are passed through a cellfeeder 10 into a preheater 12, to which steam is supplied through a pipe 14. The heated chips are carried by a screw conveyer 22 to a disc grinder 28, chemicals being added at 36. The defibred material passes through the conduit 38 to the valve 40, where pressure is released. It is then further refined at a lower temperature in the second disc refiner 42, further chemicals being added through the line 50. In a modification, not shown, the shaft 23 of the conveyer 22 is hollow, and the first addition of chemicals is made through this hollow shaft.
Patent GB-220730-A (GB)
Abstract: 220,730. Lucas, F. L. May 26, 1923. Lighting fires.-A burner suitable for use in a fire-grate, comprises a box, formed of fireclay, iron or other material, in which a cover B, which may constitute a hearth or carry a grate of the like, has a groove adapted to fit closely over a projecting portion W of a base A. The cover B, or base A, is provided with a deflector C, members C<1>, and pillars F, the deflector C and members C' being formed with waves or curves c, c<1>. Air passes through inlets a<1> and channels D to mix with gas or vapour supplied through a pipe a<3>. The box is provided with inclosed burner orifices e<1>, which may be angled, tapered or splayed, and with substantially conoidal projections e, between which the flames pass. Asbestos or like packing Rand supporting feet H may be provided.
Patent GB-674711-A (GB)
Title: Improvements in and relating to reinforced concrete floor structures
Inventor: WIESMANN JOSEPH WILLIAM
IPC: E04B5/48
Filed: 1950-09-07
Abstract: 674,711. Reinforced concrete floors; electric conduits in floors. ROBERTSON CO., H. H. Sept. 7, 1950, No. 22119/50. Classes 20(ii) and 20(iv). The load bearing reinforcement of the concrete floors of a reinforced concrete, steel framed building is formed either as a whole or in part by a ' number of spaced, parallel hollow metal beams which extend across the floor supporting members of the steel frame and are entirely surrounded by the floor concrete, the beams also being adapted for use as electric wiring conduits. In the typical floor structure shown in Fig. 1, a number of columns 10 support girders 12 between which extend the floor supporting joists 14. A number of spaced, hollow beams 16 extend across and are welded to 'joists 14, the beams, together with a number -of steel bars 24, forming the reinforcement for the floor. Electric wiring is run as required through the beams 16, a cross-over duct 26, having junction boxes 28 opening through the floor, being provided at selected points along the beams. The hollow beams preferably consist of an upper inverted channel shaped member 18 closed by a lower plate 22, as shown in Fig. 4.
Patent GB-593080-A (GB)
Title: Radio navigation apparatus
IPC: G01S19/51
Filed: 1944-11-10
Abstract: 593,080. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Nov. 10, 1944, No. 22164. Convention date, Feb. 3. [Class 40 (v)] A radio path defining system combined with a marker beacon is arranged to give also an indication of distance, such as the altitude of an aircraft. A transmitter 1 which gives a carrier frequency-modulated at an audiofrequency with a saw-tooth waveform feeds an antenna 3. Keyed reflectors either side of the antenna produce an A-N type equisignal approach path. At the relay marker beacon, situated on the equisignal path, antenna 13 receives energy from antenna 3 and passes it to modulation phase shifter 17 and amplifier 18. This amplifier feeds antenna 14 which is designed to have a fan-shaped radiation pattern having a narrow width along the equisignal path. Screen 15 prevents coupling between antennµ 13 and 14. If phase shifter 17 is adjusted to compensate for any phase shift in the relay transmitter and also for the height of antenna 14 above ground, then a 'plane flying over the marker beacon will receive two signals, one direct from antenna 3 and one from antenna 14, from the frequency difference of the modulation of which its height may be determined. Assuming the distance between the approach path and marker beacons is large compared with the plane's height, this may be taken as proportional to the frequency difference. More than one relay marker beacon may be used to give a series of heights from which the 'plane's glide angle can be found. A transmission line may be substituted for the wireless link between the primary transmitter and the marker beacons, or beacon, in which case the energy supplied to the line may be sufficient to feed the marker antennµ simply through impedance changing networks.
Patent GB-583636-A (GB)
Title: A new or improved door-closure control device
IPC: E05F3/10
Filed: 1944-11-10
Abstract: 583,636. Door checks. SMITH, A. H., SMITH, A. A., SMITH, W. J., and GRONLAND, L. H. Nov. 10, 1944, No. 22167. [Class 65 (i)] A check for a door which opens in both directions comprises an oil-filled casing 2 provided with one or more sets of cam tracks, each set having a pair of faces 4 which as they approach each other converge towards the axis of a rotatable member 8 connected to the door and comprising one or more cylinders fitted with spring-loaded pistons 12. A non-return ball valve 30 can admit liquid from the casing through passages 27 and 28 to the space 25 behind the pistons and a passage 31 restricted by a screwed plug 32 provides for controlled egress of liquid from the space 25 during the inward movement of the pistons. A recess 5 provided at each junction of the cam faces engages yieldingly with a ball 15 on the associated piston to serve for temporary holding of the door in the closed position. Independent springs may be provided for closing the door or the device may incorporate compression springs 16 mounted on telescopic members which bear against the casing and against rockers 20 connected by links 22 and chains 23 to a toothed quadrant 24 mounted on the rotatable member.
Patent GB-957821-A (GB)
Title: Improvements in or relating to trays or the like cartons
Inventor: CHRISTIAN RONALD
IPC: B65D5/4805
Filed: 1962-06-08
Abstract: 957,821. Boxes; trays. R. C. WALMSLEY Ltd. Sept. 24, 1962 [June 8, 1962; July 26, 1962], Nos. 22184/62 and 28702/62. Heading B8P.  A blank for a tray-like carton includes a base 10, end panels 1 land side panels 12, each end panel having reinforcing flaps 17-19 adapted to be bent back to form, with the end panels, a hollow wall structure, with the flap 19 secured to the base panel, the blank having also diagonally scored adhesively coated gusset corner pieces 13 to enable the side panels of the collapsed blank to be automatically erected on erection of the end walls. The blank is folded into the collapsed form in which the flaps 19 are adhesively secured to adhesively coated parts 20 of the base, and the ends 11 are folded about the lines 11a so that the gusset corner pieces are adhesively secured at 15, 16. Erection of the end walls will then automatically erect the side walls. Internal partitions are formed by bending up from the base cut and scored transverse portions 30, 31 and longitudinal portion 32 with tongues 33 engaging notches 34 in the transverse portions. In a modification, the gussets 13 are replaced by diagonally scored and partially cut corner pieces with extended strips adhesively coated to be secured to side walls 12. Modified forms of the partitions are also described.
Patent GB-1513646-A (GB)
Title: Analgesic compositions
IPC: A61K31/445
Filed: 1976-05-28
Abstract: 1513646 Analgesic compositions SUMITOMO CHEMICAL CO Ltd 28 May 1976 [2 June 1975] 22300/76 Heading A5B Analgesic compositions comprise, as active ingredients, a synergistic mixture of an indole- 3-acetic acid derivative of the formula: wherein R is halobenzoyl, piperonyloyl, or cinnamoyl and R 1  is 5-methoxy or 5, 6-methylenedioxy and an analgesic compound selected from a compound of the formula: wherein R 2  and R 3  are each independently of one another C 1-3  alkyl and R 4  is 4-(4-fluorophenyl)-4-oxobutyl, cyclopropyl methyl or 3- methyl-2-butenyl; a compound of the formula: wherein R; is a hydrogen atom or C 1-3  alkyl; a compound of the formula: and a compound of the formula: wherein R 6  is C 1-3  alkyl; and a pharmaceutically acceptable carrier or diluent. The compositions may be administered orally, parenterally or rectally in the form of tablets, capsules, solutions, suppositories, powders or suspensions.
Patent GB-425221-A (GB)
Title: Improvements relating to the production of artificial silk
IPC: D02J1/22
Filed: 1933-08-09
Abstract: <PICT:0425221/IV/1> In the production of artificial silk by stretch - spinning in which the freshly spun silk is stretched by drawing round rollers of progressively increasing diameter, there is provided at least one stepped roller which is not driven except by the pull of the thread.  Such an undriven roller may be immersed in the spinning bath.  The stretched thread is preferably allowed to contract slightly, to avoid tight winding, by making the last roller forming part of one of said stepped rollers, of smaller diameter than the largest roller.  Thread from the spinning nozzle A passes round rollers B. C. C<1> during which it is stretched, and round the roller F, which allows it to contract slightly; rollers B and C<1> are integral and freely mounted, and rollers C and F are also integral and freely mounted; the thread is drawn off by the winding device E. The double stepped pulleys may be replaced by pulleys having three or more steps.
Patent GB-218881-A (GB)
Title: Fuel charging device for brick-kilns
IPC: F27D99/00
Filed: 1923-09-05
Abstract: 218,881. Gairing, J. Sept. 5, 1923. Charging.-Fuel is fed into the kiln from a receptacle 2 having at its lower end a rotary disc 1 which is carried on a shaft 10 supported in bearings below the casing 4. The disc is provided on its underside with a vertical wall 5, S-shaped in plan, and a plate 11, of screw form, connecting with the aperture 3, fuel being retained between the parts 5, 11, and carried round to the discharge outlet 6 in the bottom of the casing 4. A ring 9, of angle section, is arranged so that its horizontal flange overlaps the disc 1, thus preventing clogging by fuel getting between the edge of the disc and the casing 4. The device may be adapted for continuous feeding by rotating the disc from above and forming the. plate 11 so that it connects with an outlet arranged centrally in the bottom of the casing 4.
Patent GB-165469-A (GB)
Title: Improvements in and relating to pits for tanning
IPC: C14B1/00
Filed: 1919-09-11
Abstract: 165,469. Fairrie, J. L. Sept. 11, 1919. Treating hides and skins with liquids.-An arrangement for suspending and agitating hides in open tanning pits, vats, &c., comprises frames 2 supported on short vertical crank-arms 6 adapted to be oscillated by longitudinal members 10 connected by a cross bar 17 and reciprocated by a driving-eccentric 12 through a rod 13 adjustably connected at 14 to a lever 15 pivoted at 23,. the frames 2 being adapted to be lifted vertically from the pits by means of a crane, &c. The supporting arms 6 are carried by horizontal spindles passing through upward extensions 7 of the corners of the pits. The longitudinal members 10 are supported by external crankarms 11, 18, the arms 11 being loose on their spindles, whilst the arms 18 are secured to their spindles to transmit to the frames 2 the movement imparted by the members 10. To enable any one or more of a series of frames 2 to be oscillated or not as required, each arm 18 is formed with a short crank-pin 20 adapted to be engaged or disengaged by a catch lever 9 pivoted on the member 10. The horizontal supporting surfaces 5 of the cranks 6 may be connected by longitudinal and transverse bars to form a frame to receive the frame 2. Metal parts exposed to the action of the tanning liquors may be made ot gun-metal or other copper alloys. The amount of agitation imparted to the hides is increased as the tanning progresses.
Patent GB-687022-A (GB)
Title: Improvements in apparatus for supplying liquid fuel to continuous combustion turbineengines
Inventor: HARDING JOHN KAMMERER
IPC: F02C7/22
Filed: 1950-09-11
Abstract: 687,022. Gas turbine plant. DOWTY EQUIPMENT, Ltd. June 18, 1951 [Sept. 11, 1950], No. 22338/50. Class 110(iii) [Also in Group XXIX] In a fuel system for a continuous combustion turbine engine in which the fuel flow is controlled by venting one side of a pressure balanced device which controls either the setting of a variablestroke fuel pump or the effectiveness of a by-pass associated with a pump of fixed displacement, the vent 12 is adjusted by a lever 16 which is pivoted at 17 and upon which act two opposed loadings, one of which is a measure of the air flow to the engine and the other a measure of the fuel flow. The arrangement limits the fuel/air ratio attainable during acceleration of the engine. The output pressure of the air compressor of the engine, which gives the measure of air flow, acts on the upper side of a spring-loaded diaphragm 19 having an abutment with the lever 16 and arranged to increase the fuel flow by closing the vent 12 in response to an increase of compressor pressure, whilst the loading which is a measure of the fuel flow is applied by two opposed springs 22, 25, an abutment 26 for the spring 22 being movable in response to flow of fuel through a variable orifice 29 in the feed conduit 13 to the engine to vary the effective force of the spring 25 which opposes the action of the diaphragm 19. Both the abutment 26 and the throttling member for varying the orifice 29 are movable by a piston 30 which has an inlet 32 to its lower side controlled by a spring-loaded diaphragm 34 subject to the pressure drop across the orifice 29, and an outlet 35 incorporating a restriction 32a. By this arrangement a constant pressure drop is maintained across the orifice 29 and the resultant force of the two springs 22, 25, is a measure of the rate of fuel flow. A capsule 23 balances the effect of pressure acting on the lower face of the diaphragm 19.
Patent GB-531839-A (GB)
Title: Improved method of and apparatus for spraying metal
IPC: B05B7/20
Filed: 1939-08-03
Abstract: 531,839. Spraying fuzible material. JOHNSON METAL SPRAY PTY., Ltd. Aug. 3, 1939, No. 22496. Convention date, May 24. [Class 69 (iii)] Metal is sprayed by melting it in a vessel 21 from which it is led by a vertical tube 22 leading into the horizontal extension 13 of a flat coiled tube 12 through which compressed air is delivered, the vessel 21 and coil 12 both being in the path of a flame from a blow pipe 11. The supply of air is regulated by a valve 15. The vessel 21 may be provided with an extension 19 in the path of the blow pipe flame, and have an inwardly turned tip 20 and baffle 21. The dip tube 22 may be bent at its upper end 26 and project into a choke tube 25, Fig. 4, of varying size to suit different material and character of spray. A cap 28 with spray orifice 29 is mounted on the outer end of the tube 13.
Patent GB-276690-A (GB)
Title: Improvements in and relating to dummy shells for gunnery practice
IPC: F42B12/76
Filed: 1927-08-26
Abstract: 276,690. Soc. Alti Forni, Fonderie, Acciaierie e Ferriere Franchi-Gregorini. Aug. 26, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Projectiles. - A practice projectile comprises a cast-metal hollow shell A with a driving band B and a base plug C. This plug may be screwed and provided with packing washers D.
Patent GB-843066-A (GB)
Title: Variable pitch fan
Inventor: PETTY MACON
IPC: F04D27/02
Filed: 1958-07-15
Abstract: 843,066. Axial-flow fans. HUDSON ENGINEERING CORPORATION. July 15, 1958, No. 22622/58. Class 110 (1). [Also in Group XXIX] A variable-pitch fan 18, Fig. 1, driven through a shaft 22 and speed-changer 21 by a motor 20 to pass air through a heat exchanger 13 has the pitch of its blades adjusted pneumatically by a control instrument 23 subject to the control of a temperature-sensing device 24 in the outlet 15 from the heat exchanger. The hub 18, Fig. 3, of the fan has a bore 30 containing a piston 31 acted upon in opposition to a loading spring 32 by a flexible diaphragm 38 subject to the pneumatic control pressure in a chamber 39 which is connected to the control instrument through a conduit 25 incorporating a coupling 26 which permits the stationary conduit 25 to be connected to the rotary hub. The piston 31 has a circumferential groove 66 in which is received a stud 64 mounted eccentrically on the end of each of the four blades of the fan so that axial movement of the piston adjusts simultaneously the pitch of each blade. Each blade 19a is screw threaded into a ferrule 50 in which it is locked by grub screws 62, and ball thrust braces 54, 55 are situated on either side of a flange 51 on each ferrule. The ferrules and the piston 31 are surrounded by sealing rings 85, 86 which retain lubricant within the hub. Radially adjustable, screw-threaded studs (not shown) have conical ends to coact with inclined walls 71, 72 of an annular groove 70 in the piston to provide maximum and minimum pitch stops. In the minimum pitch position the fan blades are arranged to have a slightly reversed pitch so as to counteract the tendency for air to flow upwardly due to the heating effect of the heat exchanger 13, thereby effecting a complete stoppage of air flow.
Patent GB-798721-A (GB)
Title: An improved material for electric resistances and process of manufacture thereof
IPC: C22C1/02
Filed: 1954-08-04
Abstract: A material suitable for use in electric resistors consists of one of the following mixed crystals: (Mg1-xCax)2 (Ge1-ySry); (Al1-xIrx) (As1-ySby); and Mg2SN1-xGex.  The material is made by melting together either the component compounds of the mixed crystals or the component elements in suitable proportions.
Patent GB-485352-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/26
Filed: 1937-08-18
Abstract: 485,352. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1937, No. 22689. Convention date, Aug. 19, 1936. [Class 39 (i)] A discharge device is provided with an electron-emitting cathode and with apparatus which varies periodically the gas or vapour pressure by one or more powers of ten in such manner that the lowest pressure obtains during the blocking period. A rectifier comprises a discharge space S, Fig. 1, which has a cathode K and anode A, is supplied with gas through a valve V and is evacuated through a connection P. The valve V operates in rhythm, with suitable phase displacement, with the applied alternating potential ; the natural frequency of oscillation of the valve may be equal to that of the applied potential. The gas may be supplied as shown to the cathode K, Fig. 2, and the gas pressure restricted to the cathode by guides L. Pumping through the connection P may be intermittent and through the connection S continuous to maintain the anode A in a region of low pressure. Ignition may be controlled by a grid which is arranged between the anode and cathode and is preferably arranged so that its surfaces cover those openings in the cathode which face the anode. In another form, the anode A, Fig. 3, surrounds the hollow cathode KE which is provided with a shield KS and a heater KH. Gas is admitted to the vessel through a valve V which is controlled by an electromagnet energized by current of frequency which is the same as that flowing through the device. The anode leading-in wire passes through an insulator T which is sealed to the metal container by a ring D and has one part provided with a projection C. The expelled gas may be purified and again fed to the device. The maximum and minimum gas pressures may be 0À1 mms. and 10<-6> mms. respectively; the filling may consist of hydrogen, helium or neon. In a further form, two control grids which form guides for the gas stream may be provided between the anode and cathode.
Patent GB-1103876-A (GB)
Title: The manufacture of n-substituted acrylamides
Inventor: COOVER HARRY WESLEY
IPC: C07C233/02
Filed: 1965-05-28
Abstract: N-substituted acrylamides are prepared in a continuous process by reaction of acrylonitrile, a secondary or tertiary alcohol or alkene and conc.  H2SO4 in presence of a phenolic compound which inhibits polymerization of the product. Examples describe the production of N-isopropyl- and N-tert-butyl-acrylamides.