baber/WOPTO huggingface dataset:
Patent GB-316839-A (GB)
Title: Improvements in facing tools for valves and valve seats
IPC: B24B15/00
Filed: 1928-12-10
Abstract: 316,839. Reibelt, G. E. Dec. 10, 1928. Portable turning-apparatus; cutters. - A tool for refacing valves and valve seats comprises a hollowconical holder A with holes drilled along generators of the cone to receive rollers C and a cutter B. The holes are of a diameter greater than the thickness of the holder so that slots are formed, the rollers and cutter protruding on both sides of the cone. The cutter may take various forms but is preferably a parallel reamer clamped in adjusted position by a set screw. Tubular guides H may be screwed into the holder to suit the valve stems. When facing seats the tube is screwed in from the other side and serves as a handle, a rod being passed through the tube to engage the valve stem guide in the seating or valve body. To reduce friction balls may be housed under the ends of the rollers.
Patent GB-1518713-A (GB)
Title: Electrostatic spray apparatus
IPC: B05B5/03
Filed: 1976-09-02
Abstract: 1518713 Electrostatic spraying apparatus CHAMPION SPARK PLUG CO 2 Sept 1976 [2 Sept 1975] 36458/76 Heading B2F A spray gun suitable for electrostatic powder coating comprises an electrically insulating barrel 12, Fig. 1, having a front portion 23 to which a nozzle 25 is releasably attached, a hose 16 for supplying an airbourne stream of powdered coating material for discharge through the nozzle, a needle electrode 32 connected to a high voltage source for imparting an electrostatic charge to the coating material, a diffuser assembly 26 comprising an annular outer portion 43, Fig. 2, which is clamped between the nozzle 25 and the front barrel portion 23 and has a passageway which is closed by the rear surface 55 of the nozzle to form a chamber 48, and a central portion 31 in which said electrode is mounted, a hose 38 for supplying compressed gas from an inlet hose 19 to the chamber 48 and means for sensing the pressure of the gas in the chamber 48 and interrupting the power supply to the electrode if said pressure falls below a predetermined value. Thus, if the nozzle 25 is inadvertently loosened, gas escapes between the diffuser assembly 26 and the rear nozzle surface 55 causing the pressure in the chamber 48 to fall below the predetermined value, and the power supply to be cut off; furthermore the power supply cannot be turned on when the nozzle 25 is removed. A small amount of the gas in the chamber 48 is supplied through passages 51, 50, Fig. 2, to an annular passageway 53 around the electrode, thereby preventing powder particles from adhering to the electrode. The nozzle 25 may have passages for supplying gas to modify the shape of the spray pattern. The coating material may be supplied to the hose 16 by means of a powder pump submerged in a fluidized bed of powdered material. The spray gun has a trigger 14 connected to a regulator valve 15; when the trigger is actuated, the valve 15 is opened so that the inlet hose 19 and a control gas hose 20 are interconnected by means of a hose 37 and the gas pressure in the chamber 48 is applied via hoses 38, 37 and 20 to a control circuit, Fig. 4, (not shown), incorporating a pneumatic valve (65) which opens if the pressure exceeds the aforementioned predetermined value and switches on the power supply to the electrode; the valve is closed and the power supply disconnected if the pressure falls below the predetermined value or the trigger is released. The valve may also control the supply of spray material to the gun and/or the supply of gas to modify the spray pattern. Fig. 5 (not shown), illustrates a control circuit for an automatic spray gun in which the trigger and regulator valve are omitted. The spray gun may also be used for spraying liquid coating materials.
Patent GB-522614-A (GB)
Title: Production of cellulose meal
IPC: A23K10/32
Filed: 1938-12-14
Abstract: 522,614. Food for animals. HERBST, W. Dec. 14, 1938, No. 36461-. [Class 5 (ii)] [Also in- Group IV] Cellulose meal for use as a foodstuff for animals is produced by subjecting cellulosic material to a treatment with dilute acid, insufficient in intensity to destroy the cellulose fibres or to convert the cellulose into hydrocellulose but sufficient to render the cellulose fibres capable of destruction by wet grinding in a mill such as a disc mill or a beater, freeing the material from acid by washing with water or by neutralizing and then grinding in the moist or dry condition. Where the material is ground in the moist condition it may be subjected to a final grinding after drying: Suitable cellulosic material is sulphite or soda cellulose, cotton, flax bast or straw, while the acid employed may be a mineral acid such as hydrochloric, sulphuric, sulphurous or nitric acid. The cellulosic material may be treated before or after the acid treatment with alkali solutions such as hot caustic soda lye, or soda solution or other resindissolving agents. In examples (1) ordinary commercial bleached sulphite cellulose is boiled in 1 per cent. hydrochloric acid for 15 to 60 minutes, washed free of acid, boiled with 0.5 per cent. soda solution for 15 minutes, washed, partially hydro-extracted, ground, dried and finally ground a second time, (2) ordinary commercial bleached sulphite cellulose is boiled in 1 per cent. hydrochloric acid for 15 to 60 minutes, freed from acid by neutralizing or washing, dried and ground, (3) cellulose is subjected to the usual sulphite boiling process in the presence of free sulphurous acid, washed, partially hydro-extracted, ground, dried, boiled for 15 minutes in 0.5 per cent. caustic soda lye, washed and finally dried.
Patent GB-156122-A (GB)
Title: Process for the manufacture of diolefines and derivatives thereof
IPC: C07C1/30
Filed: 1920-12-30
Abstract: Halogen or other derivatives capable of yielding diolefine hydrocarbons are obtained (1) by the pyrogenic decomposition of hydrocarbons such as turpentine, or hydroxy hydrocarbons, such as cyclohexamol, in presence of an agent such as a halogen or a hydrogen halide, or (2) by high-temperature chlorination of pentane or isopeutane.  The reaction may be facilitated by the presence of a silicon alloy, such as ferro-, manganese-, or copper-silicon, a silicate, or a metal of the platinum group. The crude chlorinated hydrocarbons are purified by distillation; the diolefines can be recovered by removal of the halogen or hydrogen halide and utilized for rubber synthesis.  Other starting materials mentioned are limonene, dipentene, cyclohexanols, diols and pinacones.  According to examples:-(1) a mixture of benzene and limonene vapour with hydrochloric or hydrobromic acid is passed through a ferrosilicon tube charged with a catalytic material and heated to 550-600 DEG  C.; the decomposition may take place under reduced pressure; the products are collected in a water-cooled condenser; (2) gasoline treated as in example 1 but at 600-800 DEG  C. yields a mixture of (CH3) (CH2Cl):CH.CHCl.CH3, (CH3)2:CCl.CHCl.CHCl.CH3, (CH3)2:CCl.CH2. CH2Cl and CH3.CH2.CHCl.CHCl.CH3, from which, by splitting off hydrochloric acid, isoprene and piperylene can be obtained. Specification 156,139 is referred to.
Patent GB-933562-A (GB)
Title: Improvements in, or relating to, wall boxes for electric switches or like accessories
Inventor: THOMPSON JAMES FRANCIS
IPC: H02G3/12
Filed: 1958-11-13
Abstract: 933,562. Switch cases. WANDSWORTH ELECTRICAL MANUFACTURING CO. Ltd. Nov. 13, 1959 [Nov. 13, 1958], No. 36468/58. Class 38 (5). A wall box for the flush mounting of electric switches or like accessories, particularly in a hollow wall, has at least one rigid strap 7 mounted externally along at least one side and adjustable away from and towards the box by means such as screws 13 carried by the box. Rotation of the screws in one direction draws the strap towards the box which is then inserted within a slightly oversize opening cut in the wall panel 4, the screws 13 then being turned in the other direction to force the strap 7 into engagement with the panel edge, longitudinal ribs 8 on the edges of the strap 7 biting into the edges of the panel 4.
Patent GB-920339-A (GB)
Title: Improved machine for automatically inspecting ampoules
IPC: G01N33/00
Filed: 1959-10-27
Abstract: 920,339. Photo-electric inspection apparatus. SHIONGI & CO. Ltd. Oct. 27, 1959 [Oct. 30, 1958], No. 36480/59. Class 40 (3). [Also in Group XXX] In a machine for automatically inspecting ampoules by a beam of light directed to the ampoule so that scattered light reflected from foreign matter particles in the ampoule is received by a photo-electric tube whose output current is amplified and utilized for effecting selective sorting of the acceptable and rejected ampoules, the ampoule to be inspected is firmly held in a central position, a slit is provided between the light source and ampoule corresponding to the shape and cross-sectional area of the light beam, a polarizing filter or filters is/are provided on one or both of the lightsource and photo-electric tube, a convex lens is disposed between the ampoule being inspected and the photo-electric tube and a shield plate is located at the position of the real image formed by said convex lens of the ampoule being inspected. As shown in Figs. 1 and 2, a motor 1 drives through a number of bevel gears 2 ... 9, a Geneva stop driving wheel 10 driving a follower 11 which rotates in step-by-step manner, gears 12, 13 and a large gear-wheel 15 carrying a platform or turn-table 14 provided with circumferentiallyspaced ampoule holders 16, each comprising a small chuck 37 with spring-biased jaws. The ampoules to be tested are fed in two rows to similar inspecting devices, down a shoot 20 to a catch plate 22 from which they are transferred by a bracket operated from a cam 23, Fig. 4, on a shaft 19, Figs. 1 and 4, driven by gears 17, 18, Fig. 1, from the gear-wheel 5 of the driving train. An arm 35, Fig. 4, also driven by a cam 32 engages a pin 36 which pushes the ampoule into the chuck member. A further link member 38 is moved upwards by cam 32 to engage sleeve 39 to release the ampoule which has been inspected and which is diverted by switch members, Fig. 3 (not shown), operated by circuits responsive to the output of the photo-electric cell, to acceptance, rejection or unclassified containers. When the ampoule is moved into the position 16, Fig. 1, immediately preceding the inspection position 43, an air jet from a nozzle 42 impinges on to a wheel which rotates the ampoule, the rotation of the glass container being suddenly braked when the ampoule is moved into the inspection position 43. Light passes from the source 46, Figs. 1 and 7, through a shaped slit and through the ampoule A, Fig. 7, and a convex lens C which in conjunction with a shield plate B located at the position of the real image of the ampoule and near the photo-electric tube 49 is arranged to mask off the portion of the image including the liquid surface of the ampoule from which scattered reflected light may originate.
Patent GB-919572-A (GB)
Title: Improvements in gripping heads for machines for stretching metal sheets
IPC: B21D25/04
Filed: 1960-10-25
Abstract: 919,572. Stretching. SCHLOEMANN A.G. Oct. 25, 1960 [Nov. 23, 1959], No. 36566/60. Class 83 (4). A gripping head for a machine for stretching metal sheets with two clamping jaws 1, 2, each extending over the breadth of the sheet to be stretched and each controlled by a parallel motion linkage, is characterized in that each parallel motion linkage includes a carrier 3 or 4 for the jaw 1 or 2, respectively. The carriers 3, 4 are constructed as shafts rotatably supported by beams 5, 6 held in the machine frame 7 by bearings 8, 9, and are connected to the frame 7 by links 10 ... 17. Links 18, 19 pivoted to a rod 20 actuated by a piston are connected to the links 16, 17, respectively. A row of resilient rubber or synthetic plastic pads 22, Fig. 2, are disposed along the top of the clamping arm 21 of the jaw 1 and are let into a ribbed, pad bed 23. Alternatively, the jaw 2 may be constructed in this way.
Patent GB-1152743-A (GB)
Title: Improvements in or relating to Sound Reproducing Apparatus.
Inventor: GARRATT GERALD REGINALD MANSEL
IPC: G11B15/06
Filed: 1965-08-26
Abstract: 1,152,743. Recording and playback. MINISTER OF TECHNOLOGY. 24 Aug., 1966 [26 Aug., 1965], No. 36647/65. Heading G5R. [Also in Division H3] A sound-reproducing apparatus for playing back recorded commentaries, e.g. at exhibitions, incorporates a telephone handset 4, a magnetic tape playback device 1 arranged to apply signals to the telephone earphone and a bi-stable control circuit 5 (see Division H3), the conditions of which determine whether or not the tape is played, there being a switch in the telephone handset which sets the bi-stable circuit to initiate playback of the tape when the telephone is lifted from its rest. A sensing system 2 responds to indicia on the tape to reset the bi-stable circuit, if the telephone has been returned to the rest, at the end of the commentary. The sensing system may be operated either photo-electrically by detecting light reflected from a metal indicium or electrically by a brush contacting the metal indicium. A number of playback assemblies may be controlled by one telephone in the same way, and the tapes may be in loadable magazines.
Patent GB-1046069-A (GB)
Title: Polyesters
Inventor: DEMPSTER HENDRY WILSON
IPC: D01F6/62
Filed: 1964-09-08
Abstract: 1,046,069. Polyester filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 1, 1965 [Sept. 8, 1964], No. 36730/64. Heading B5B. . Filaments having a shrinkage of more than 10% are made by extruding a melt of poly (ethylene - 1: 2 - diphenoxyethane - 4: 4<SP>1</SP> - dicarboxylate) or a copolymer thereof, winding the extruded filaments on to a package at a speed of 500 to less than 4000 feet per minute, and cold-drawing the resultant yarn over a pin at a temperature of 60‹-90‹ C. using a draw ratio of 1.25/1 to 2.5/1. A copolyester is defined as a copolyester in which at least 85% of the units are of the formula " Shrinkage " is defined as the reduction in length, expressed as a percentage of original length, when the yarn is immersed, under minimum tension, in water at about 100‹ C. In examples, poly(ethylene 1: 2 - diphenoxyethane - 4: 4<SP>1 </SP>- dicarboxylate) is melt spun at 290‹ C. through a 5-hole spinneret, wound at 1000 or 2000 feet per minute and drawn at various ratios within the specified limits.
Patent GB-1242842-A (GB)
Title: Improvements in or relating to d.c. amplifiers
Inventor: BOUGHTON GORDON REX
IPC: H03F3/387
Filed: 1967-08-10
Abstract: 1,242,842. D.C. amplifier. THORN AUTOMATION Ltd. 12 Aug., 1968 [10 Aug., 1967], No. 36736/67. Heading H3T. In a D.C. chopper type amplifier the output of an (A.C.) amplifier 2 drives the gate of a F.E.T. 6 to provide positive feedback rendering the amplifier 2 self oscillating, the signal at F.E.T. 6 drain being modulated by the D.C. (from 4) to be amplified and the output of the amplifier 2 being demodulated (by MR1, MR2) the resulting D.C. output being negatively fed back (through R5) to the input. The F.E.T. 6 is D.C. biased by a variable resistance UR1 across a voltage source. The voltage across F.E.T. 6 is the difference between the input voltage 4 and a fraction of the output voltage determined by R5, R6. The frequency of operation is determined by the pass band of the amplifier 2.
Patent GB-1135658-A (GB)
Title: Folding of sheet material
Inventor: CRAN THOMAS BROADBENT GORDON
IPC: D06F89/00
Filed: 1966-08-17
Abstract: 1,135,658. Folding edges of non-metallic sheet material. THOMAS BROADBENT & SONS Ltd. 1 Aug., 1967 [17 Aug., 1966], No. 36751/66. Heading B5K. [Also in Division D1] A foldable sheet 12, Fig. 2, e.g. a laundry workpiece, is folded by supporting the sheet in an open condition, restraining it along a fold line against upward movement, directing a curtain of air upwardly from below along a line to one side of the fold line to raise a portion of the sheet at said one side of the fold line from its supported position, and causing the raised portion to swing across the fold line and then downwardly by constraining at least some of the air of the curtain to flow across the fold line. In one embodiment, Fig. 2, a sheet 12 is stationarily supported on a platform 13 having longitudinal parallel slots 14 therein and rods 15 extending along the inner margins of the slots 14. A blast pipe 16 is disposed beneath each slot 14. A transversely arched guide sheet 17 is situated above each rod 15 and pipe 16. Air blasts from the pipes 16 first fold the margins 20 of the sheet 1 to positions 22 and then to fully folded positions 21. In another embodiment, Figs. 4 and 8, the sheet 25 is supported by a conveyer 4 comprising a plurality of narrow tapes and a pair of parallel rods 1 supported from a projection 3 and each lying inwardly of a gap between two conveyer tapes. Arched guide sheets 32 are arranged above blast pipes 16. When the forward end of the sheet 25 reaches a feeler 26 a timing mechanism is actuated to cause (a) the conveyer 4 to stop, (b) a platform 27 to be raised by rams 28 to receive the tape 4 and the pipes 16 in channels 30, 31 therein and to clamp the sheet 25 against the rods 1, Fig. 5(not shown), (c) air to be issued upwardly from the pipes 16 so that the sheet margins are folded over, Fig. 6 (not shown), and (d) the platform 27 is lowered and the conveyer 4 is restarted so that the folded sheet passes between a pressure roll 10 and a platform 35 to crease the sheet. In a modification, Fig. 9 (not shown), the rods (1) are provided with slightly divergent extensions (40) to enhance the neatness of the fold prior to the sheet passing beneath the roll (10). If the folded margins (41), (42) of the sheet overlap the issue of air from the blast pipes is separately timed. In a further modification, Fig. 10 (not shown), the sheet is folded whilst moving on a travelling conveyer (4) the tapes of which are roughly surfaced and the rods 1 being smoothly surfaced. In another modification, Fig. 11 (not shown), for folding a stationary sheet, the platform 27 of Fig. 4 is replaced by bars (45) located in gaps between the conveyer tapes and vertically movable by pneumatic jacks (46).
Patent GB-1114103-A (GB)
Title: Leaf valve
IPC: F16K15/16
Filed: 1966-08-18
Abstract: 1,114,103. Valves. NEW YORK AIR BRAKE CO. 18 Aug., 1966 [13 Sept., 1965], No. 37049/66. Heading F2V. A leaf valve comprises a planar valve surface having a port 12 extending into the surface leading from inlet ports 15. A valve leaf 16 overlies the port and is biased on to the valve surface. A groove 21 is arranged between the port and the anchorage 18 of the valve the groove being separated from the port by a part of the surface and extending beyond the width of the leaf. Such an arrangement prevents erosion due to cavitation. The spring leaf may be attended at both ends. Leaves 16<SP>1</SP>, 16<SP>11</SP> may overlie the leaf 16. The groove 21 may be provided in the leaf 16.
Patent GB-1348216-A (GB)
Title: Rivet setting apparatus
IPC: B21J15/26
Filed: 1972-08-10
Abstract: 1348216 Riveting NIETEN-UND METALLWARENFABRIK ALFRED HONSEL 10 Aug 1972 [20 June 1972] 37302/72 Heading B3U Rivet setting apparatus comprises a worm 4a mounted on a shaft 4, a worm-wheel 5 meshing with the worm and having an eccentrically mounted stop 5a, a coupling rod 6 having means e.g. a latch, 6a for engaging the stop 5a, and a rivet setting head 3 pivotally connected to the rod 6. In operation a stop 8 is moved by a lever 9 from the position shown in broken lines to the position shown in full lines. The wormwheel 5 is then rotated by a drive shaft 1a, via the worm 4a, and causes the stop 5a to engage the latch 6a. The coupling rod 6 and head 3 are thus pulled rearwardly against the action of a spring 7 to set a blind rivet. When the rod 6 reaches the position shown in chain lines it is released by the stop 5a and returns under the action of the spring 7 so that a latch 6b engages the stop 8 to pivot the rod 6 to its inoperative position.
Patent GB-1420625-A (GB)
Title: Pitch varying mechanism for a variable pitch fan or propeller
IPC: F02K3/04
Filed: 1972-08-10
Abstract: 1420625 Variable pitch propellers ROLLS ROYCE (1971) Ltd 1 Aug 1973 [10 Aug 1972] 37204/72 Heading B7V [Also in Division F1] A pitch-changing mechanism for an enginedriven fan or propeller comprises a casing connected to and rotatable with the fan or propeller about the engine axis and containing a hydraulic actuator connected to means for rotating the fan or propeller blades about their longitudinal axes to vary their pitch, a pump, a tank for supplying hydraulic fluid to the pump, and a valve which is supplied with fluid from the pump and is operable to supply the fluid to the actuator; the actuator, pump, tank and valve being connected to the easing for rotation therewith about the engine axis; means being provided for driving the pump during normal engine operation and auxiliary means being provided for selectively providing a second drive to the pump. The fan blades of a ducted-fan gas turbine engine are mounted on a rotor disc which includes hubs 11, 12, pitch variation of each blade being effected by a shaft 20 extending between the hubs and formed with a bevel gear 21 meshing with bevel gears 22, 23 which are connected through splined connections 24, 25 to oppositely rotating parts of a hydraulic vane motor 30. Oil for operating the vane motor 30 is supplied to it by a gear pump 50 via pipes 46 and a control valve 40. The pump motor, control valve and an annular tank 54 from which the pump draws the oil are carried by a rotary casing 6 which rotates with the fan rotor disc. Oil leaving the motor 30 via a drain 49 is flung outwards by centrifugal force to form a thin layer on the radially inner wall of the rotating tank 54 and enters the tank via a non-return valve 56. A shaft 52 carried by the rotary casing 6 and therefore orbiting about the engine axis 4 is rotated by the engagement of a planet gear 57 with a normally stationary armulus gear 58 and drives the pump 50 through gearing 51. To permit the blade pitch to be adjusted when the engine is stationary, the annulus gear 58 can be rotated by an electric motor 60 to drive the pump 50. The control valve 40 is actuated by a shaft 42 which is movable longitudinally by means of a nut 41 having a threaded engagement with a stationary tube 44, the nut being rotatable via an arm 43 by a pilot's lever or an electric motor.
Patent GB-815639-A (GB)
Title: Improvements in or relating to stapling devices
IPC: B25C5/02
Filed: 1956-12-06
Abstract: 815,639. Stapling machines. REES, PITCHFORD & CO. Ltd., and LANGFORD, D. I. Sept. 10, 1957 [Dec. 6, 1956], No. 37376/56. Class 89(3) In a stapling machine, the side of the magazine 3 has an aperture 5 to provide for loading the staples into the magazine and to provide a visible indication of the number of staples remaining. The magazine is trough shaped and the staples rest against the bottom and sides thereof whilst being urged towards the raceway by a spring urged staple follower 6 having a projecting bolt 8 serving both as a handling means and as means to limit the movement of the follower by engaging the ends of the aperture 5. The follower 6 has a flat leading edge capable of acting upon staples of slightly different size, which will fit within the magazine. An edge 7 extending above the floor of the trough prevents the staples from falling out through the aperture 5. The magazine 5, together with a pivoted cover 1, which carries the driving blade, constitute an arm pivotable to but readily detachable from a pair of upstanding lugs 11, 12 on a base integrally formed with an anvil 16 having forward and rear portions 15, 17 adapted to clinch the staples outwardly and inwardly respectively. Tho pivot 2 is engaged with or detached from the lugs 11, 12 through the open end of a slot provided in each lug, and is retained in the slots, by a spring 19 engaging the underside of the arm, in one of two alternative positions 13, 14 according to whether it is desired to employ the anvil portion 15 or 17. The spring 19 also supports the arm at a slight angle to the base. When detached from the base, the arm can be used as a tacker.