baber/WOPTO huggingface dataset:
Patent GB-785642-A (GB)
Title: Improvements in or relating to cavity resonators
Inventor: KING LEONARD TONY
IPC: H01J23/207
Filed: 1953-08-01
Abstract: 785,642. Cavity resonators. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 21, 1954 [Aug. 1, 1953], No. 21401/53. Class 40 (8). [Also in Group XL (a)] A cavity resonator comprises circular plates 1, 2 between which arcuate walls 13 are pivotally mounted at 14. In a modification, they may be hinged together at their other adjacent ends. The resonator is tuned by moving the walls 13 inwardly against spring (17)-pressure by means of a screw-operated strip 20 or by allowing the walls to move outwardly under the spring pressure. Quarter-wave chokes 16, spaced #/4 from the arcuate surface which forms the enclosing wall of the cavity, may be provided on the surfaces of the walls 13 adjacent the plates 1, 2. A post 15 prevents leakages of power from the cavity. A plug-in discharge device 8 of the disc-seal type may be secured to the resonator by clamps 7. The reflector electrode supply voltage of the device may be ganged to the movement of the strip 20 to maintain the device in oscillation throughout its tuning range.
Patent GB-985420-A (GB)
Title: The preparation of oximes
Inventor: COWDREY WILLIAM ARTHUR
Filed: 1962-06-04
Abstract: Oximes are made from alkanes, including cycloalkanes, by mixing the alkane and a nitrosating agent and exposing the mixture to ultra-violet light, the formation of a deposit of the reaction product sufficient to halt the reaction being prevented by flowing chlorosulphonic acid over the reactor surface.  Suitable alkanes are those having 5-12 C atoms, especially cyclohexane. Nitrosating agents, e.g. nitric oxide, nitrogen dioxide, nitrosyl chloride and nitrosyl sulphuric acid may be used alone, or mixed with hydrogen chloride and/or chlorine, or as solutions in chlorosulphonic acid. The preferred agent is a mixture of nitrosyl chloride and hydrogen chloride in the ratio 1 : 4.  The reaction is preferably carried out at 7-35 DEG  C. The feed rate of nitrosating agent is maintained so that the reaction mass is yellow to yellowish-brown, to avoid formation of by-product.  The chlorosulphonic acid used for washing the walls may be used repeatedly until it is saturated with product, preferably chlorosulphonic acid which it too highly concentrated is not employed. The main product is an oxime hydrochloride which is readily soluble in chlorosulphonic acid.  If the chlorosulphonic acid solution is heated to about 90 DEG  C., the corresponding lactam is formed. Alternatively, if the chlorosulphonic acid solution is diluted and neutralized the free oxime is obtained.  Specification 903,680 is referred to.
Patent GB-387365-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic anhydrides and to their recovery
IPC: C07C51/573
Filed: 1931-07-27
Abstract: Water is removed from aliphatic anhydride vapours by reaction with a hydrocarbon.  The hydrocarbon may be added to the acid before its thermal decomposition to produce the anhydride or to the reaction vapours after the thermal decomposition, and preferably a catalyst is used to facilitate the reaction between the water and hydrocarbon whether or not a catalyst is employed for the thermal decomposition of the acid.  Suitable catalysts for the reaction with the hydrocarbon are nickel or cobalt (which may be activated with alumina or magnesia), copper, silica, alumina or magnesia or mixtures thereof.  Preferably catalysts such as iron and manganese and their compounds, which have a decomposing effect on the anhydride should be avoided.  The mixture of reaction vapour with methane or other hydrocarbon may be passed through tubes of copper, rustless steel or the like which may contain a catalyst; or the mixture may be passed through molten baths, such as metals or salts, which may contain suitable catalysts.  The thermal decomposition may be effected as described in Specifications 256,663, 289,972, 298,667, 303,772, 310,863, [all in Class 2 (iii), Dyes &c.], or 387,692.  In an example a mixtnre of acetic acid vapour and methane is passed over calcium tungstate or sodium metaphosphate at 600-650 DEG  C. and the resulting vapours are then led over finelydivided nickel at 700-750 DEG  C. Specification 305,147, [Class 2 (iii), Dyes &c.], also is referred to.
Patent GB-261677-A (GB)
Title: Improvements in or relating to nozzles for fire extinguishing apparatus
IPC: A62C31/00
Filed: 1926-08-31
Abstract: 261,677. Excelsior Feuerl÷schgerõte Akt.-Ges., and Reddemann, B. Aug. 31,1926. Fire-extinguishing by foam; pipes, directing; sprinkling-apparatus, non-automatic. - The hose pipe of foam fire-extinguishing apparatus terminates in a T-shaped valve chamber with an inlet and two outlets, a, straight squirting nozzle in line with the inlet, and a, hook shaped, squirting nozzle at right angles thereto, and means within the chamber for closing either outlet. The chamber is provided with one half b of a " Storz " coupling. The outlets c, d are provided with a flap valve g pivoted at i and having an outside handle. The device is intended for use with fuel tanks, the operator holding the valve handle so as to direct the foam to the straight nozzle while approaching the fire, and squirt a jet of foam into the tank until it is possible to hook the bent nozzle over the sideof the tank. On release of the handle, the valve g automatically closes the outlet to the straight nozzle, and the foam flows into the tank through the bent nozzle. Large bubbles are broken up when they impinge on the valve in its second position.
Patent GB-500212-A (GB)
Title: Method of and apparatus for drawing wire or the like
IPC: B21C3/14
Filed: 1937-08-04
Abstract: 500,212. Drawing wire. SIMONS, A., and SIMONS, L. Aug. 4. 1937, No. 21507. Convention date, Aug. 7, 1936. [Class 83 (iv)] Dies.-Wire or the like is passed before entering a drawing die through a series of at least two chambers each containing a body of material under pressure which surrounds and abuts the wire, said material being carried into the chambers by the wire and accumulating therein under pressure whereby it exerts a frictional retarding action on the wire, said action increasing in the successive chambers towards the die. A drawing-die D and members 11, 5, 5a, 5b are retained, together with intermediate soft steel washers 8, 8a, 8b, 8c by a clamping-member 4 screwed into the holder 1. The wire passes through the members 11, 5, 5a, 5b with slight clearance and carries forward lubricant under pressure into the chambers therein. The force exerted by the die is stated to be reduced by the frictional retarding action, numerical examples being given in the Specification. The lubricant may be liquid, solid, in paste form, or a viscous material. A solid powder contains soap, tallow, and lime. The bores 9, 13 may be cylindrical or tapered as described in Specitication 269,330, [Class 83 (iv)] Relief means for excess pressure may be provided. It is stated that in drawing iron-chromium alloys, subsequent polishing is unnecessary. Water, liquid, or gas as coolant is circulated about the die by passages 2, 3.
Patent GB-773747-A (GB)
Title: Improvements in or relating to direct current motors
Inventor: ISHIKAWA KAZUO
IPC: H02K23/56
Filed: 1955-07-25
Abstract: 773,747. Electric motors; brushes for electric motors. NIHON SHINKU TOKEI KABUSHIKI KAISHA. July 25, 1955, No. 21511/55. Class 35. A commutator motor has three coreless coils and corresponding commutator segments. As shown for a flat machine the fan-shaped coils C are mounted between non-magnetic discs 24 and interact with the similarly-shaped poles of a permanent or electromagnet 1. The brushes are composed of pairs b1, b2 and b3, b4 arranged at an angle so as to short-circuit each coil for an appreciable interval in the neutral position. A modification, of drum form, is described.
Patent GB-750172-A (GB)
Title: Improvements in or relating to crystal rectifiers
IPC: H01L21/00
Filed: 1953-08-04
Abstract: A crystal rectifier comprises a crystal of mercuric selenide, which may be prepared by
Patent GB-1455202-A (GB)
Title: Process for preparing an unsaturated ester
IPC: C07C67/055
Filed: 1974-05-15
Abstract: 1455202 Oxidation catalysts MITSUBISHI CHEMICAL INDUSTRIES Ltd 15 May 1974 [22 May 1973] 21558/74 Heading B1E [Also in Division C2] Solid catalysts for the preparation of unsaturated esters comprising Pd and, in addition, one or more of Sb, Bi, Te and Se are prepared by supporting the elements or their compounds on an active carbon support, reducing, oxidising and then reducing again. The preparation may include a treatment of the carrier wtih nitric acid, either before or during application of the elements, reduction steps using hydrogen or a reducible organic compound, e.g. methanol or hydrazine and an oxidation step using molecular oxygen or a molecular oxygen-containing gas at above 200C. The catalyst may contain 0.01 to 30% wt of Sb, Bi, Te or Se, calculated as metal, 0.1 to 20% wt of Pd, calculated as metal and 0.01 to 10 gm atom of Sb, Bi, Te or Se per 1 gm atom of Pd.
Patent GB-188294-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1921-10-28
Abstract: 188,294. Colman, T. B. Oct. 28, 1921. Revolving doors.-In a revolving door having automatically collapsable wings, a notched disc 1 on the central supporting shaft 1<a> of the door, is engaged by spring-controlled latches 4 provided with spring-pressed bolts for holding the wings in their radial positions. The latches 4 turn about pivot pins 5 carried by fittings 6 secured to the top of the wings. Each latch carries a spring- pressed bolt 10 which is normally held by a spring 11<a> in its lowermost position where it engages a recess in the top face of the member 6. During movement of the door in either direction, a coiled spring 8 surrounding the pivot pin 5 is compressed by means of a projection 7 on the latchmember sliding in a slot in an abutment for the spring. When the wings are folded, the latches assume the dotted position shown in Fig. 2, the wings themselves turning about pivots 11 on plate hinges of the type described in Specification 22552/10.
Patent GB-1125103-A (GB)
Title: Improvements in and relating to the compression of vapour
Inventor: WOOTTON WILLIAM ROBERT
IPC: F04F5/26
Filed: 1965-05-24
Abstract: 1,125,103. Distillation apparatus of the vapour-compression type; desalination of sea water. BABCOCK & WILCOX Ltd. 23 May, 1966 ,[24 May, 1965], No. 21934/65. Heading B1B. [Also in Division F1] In a distillation apparatus, suitable for the distillation of sea water, the vapour flowing from the evaporator 1 through duct 5 is compressed in the last ejector pump 3j of an assembly of such pumps 3a ... 3j connected in cascade, the first pump 3a being supplied with high-pressure steam as compressive fluid, and the connections between the pumps being such that a fraction of the vapour discharged from each pump (except the last) is used as compressive fluid in the succeeding pump and that the remainder of the vapour discharged from each pump (except the first) is conducted through a line 4 to the suction inlet of the preceding pump. The non-returned vapour discharged from the last pump 3j is introduced into the heating coil 6 of evaporator 1, where it condenses; and the required distilled water is discharged from this coil. Steam at a pressure of 2,500 p.s.i.a. from a nuclear power plant may be supplied to the first ejector pump 3a. The mass of vapour led back to any pump may be the same as the mass of compressive fluid supplied to that pump. Also described is a housing divided by arch-shaped baffles into spaces, which device acts as five ejector pumps (see Division Fl).
Patent GB-829379-A (GB)
Title: Suspension fittings of the rail and hook type
IPC: A47H1/122
Filed: 1957-07-11
Abstract: 829,379. Suspending curtains. W. L. ENGINEERING Ltd., and LUCAS, S. July 8, 1958 [July 11, 1957], No. 21956/57. Class 52(5) [Also in Group XXV] A suspension fitting, e.g. for cupboards and wardrobes, comprises a rail 10 of channel or. inverted L-shape mounted horizontally on a supporting wall 12, e.g. by clips 11, and at least one hook 16 having a part 17 engaging the top flange of the rail ending in a lip 19 engaging under the flange. The hook part 20 which crosses the face of the rail also ends in a lip 21 engaging under the lower edge of the front. To remove a hook from the rail, it must first be tilted forwardly and upwardly and then lifted vertically. The hook may have a portion 22 abutting the wall or a rubbing strip secured to the wall.
Patent GB-241529-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/06
Filed: 1925-09-03
Abstract: 241,529. Maschinenfabriik Augsburg- Nurnberg Akt.-Ges. Oct. 20, 1924, [Convention date]. Cylinders receiving liquid fuel.-In an engine in which fuel is injected laterally from nozzles d into a stream of air to which a rotary motion is imparted by a screen a<1> on the air inlet valve a, a central projection b<1> is provided on the piston so that the air is squeezed into the annular combustion chamber b thus formed and is given a motion transverse to the rotary motion.
Patent GB-1274303-A (GB)
Title: Improvements in or relating to presses
IPC: B30B15/04
Filed: 1969-05-01
Abstract: 1,274,303. Hydraulic presses. HYDREL A.G. 1 May, 1969 [2 May, 1968], No. 22174/69. Heading B5F. [Also in Division B3] A piston 30 of a reciprocating tool holder 24 in a stamping press is guided by an elastically yielding guide cone 45 which is pressed, by springs 54, against the conical surface of a clamping cone 46, so as to press the guide cone 45 radially towards the piston 30. In operation the piston 30 is raised by feeding hydraulic fluid through opening 35 and is guided by guides 37 and 38 having a construction as described above with the exception that the guide cone 45a of the guide 37 is pressed outwardly against cylinder 25 and the piston crown 36a itself embodies the clamping cone 46. When the tool holder 24 carrying a blank meets tool holder 20, piston 7, guided by guides 11 and 12 having the same construction as guides 37 and 38 respectively, is forced upwardly against a predetermined back pressure. Sub-units 3 and 2 carrying tool holder 24 and 20 respectively may be removed from frame 1 by removing fasteners 4 and 16 and sliding the sub-units along guideways 15 and 28.
Patent GB-658378-A (GB)
Title: Improvements in or relating to delivery devices for beer or the like gasified liquid
IPC: B67D1/14
Filed: 1949-08-26
Abstract: 658,378. Froth reducers. CAMPBELL, A. B. Aug. 26, 1949, No. 22181. [Class 21] [Also in Group XVIII] In apparatus for dispensing beer and like gas-containing liquids at the pressure of the barrel or other source of supply with a controlled head of froth by passing the beer &c. from a supply 1 through a passage 2 and tube 13 into a glass vessel 12 provided with a vent valve as described in Specification 457,338 a filter is 29 is fitted surrounding the valve to prevent impurities choking the valve. The vent valve is governed by a float 20. The beer is dispensed by a valve 19.
Patent GB-222472-A (GB)
Title: Improvements in and relating to steam or gas turbines
IPC: F01D5/14
Filed: 1924-09-19
Abstract: 222,472. Erste Br³nner Maschinen- Fabriks-Ges. Sept. 29, 1923, [Convention date]. Axial-flow type; blades, vanes, and nozzles.- In turbines of the disc type, the outlet ends of the guide passages c and the inlet ends of the rotor blade passages a form substantially continuous passages of uniformly increasing or decreasing cross-sectional area, the gap s between the two sets of passages not exceeding 1 mm. in width. The width f of the guide blades b is approximately 1.5 times the width e of the rotor blades a.
Patent GB-698625-A (GB)
Title: Improvements in machines for spraying insecticides and the like
IPC: A01M7/00
Filed: 1950-09-11
Abstract: 698,625. Crop sprayers. PEARCH, L. C. Sept. 7,1951 [Sept. 11, 1950], No. 22295/50. Class 69(iii) A spraying machine comprising a fan 15 of axial flow type mounted at the machine rear so as to draw an air current forwards, and with deflectors including one or more arched guide vanes 36, for causing the air to be discharged substantially at right angles to the fan axis, has one or more of the vanes hollow to receive spray solution from one or more feed pipes, and the solution is fed into the air stream from nozzles 56 screwed into the vane or vanes. Each vane comprises a number of flanged segments, Fig. 3, bolted together, and is supported by piates 40 secured between adjacent flanges, the plates having lugs which are attached to the air discharge passage walls. The plates may be apertured to connect adjacent segments, or unapertured in cases where groups of segments are supplied with spray solution separately. A sheet metal trough 46 and a partition 47 direct the air current upwards and on either side of the fan axis. Specification 623,068 is referred to.
Patent GB-1338170-A (GB)
Title: Recording noise level in communication systems
IPC: H04J1/16
Filed: 1971-04-19
Abstract: 1338170 Measuring noise in communications channels WANDEL U GOLTERMANN 19 April 1971 [26 Feb 1970] 22360/71 Heading G4H A method of recording the noise level in the channels CH I -CH VI  of a communications system comprises periodically sampling the noise level in each channel, digitizing each sample, perforating a tape 38 with a binary code corresponding to the digitized samples and also recording elapsed time indications on the tape. Relays 11 I -11 VI  are energized in sequence by a programmer 19 to connect the channels successively to a noise level detector 12. The detector is connected to an integrator 21 and a circuit 13 including a capacitor which is discharged each time the capacitor is charged to a predetermined magnitude to determine the mean noise during a one minute sampling period. The pulses generated by the circuit 13 are fed to a counter 14 which actuates a tape perforator 15 to binaryencode the noise level by punching holes in tracks d-h on the tape. If the noise level in a channel exceeds the threshold level set by the integrator 21, an output from the integrator causes a hole to be punched in track c. Holes are punched in tracks a and b by outputs 194 and 193 of the programmer at six minute and twentyfour hour intervals respectively. An AND gate 16 opens a switch 17 whenever the counter reaches its maximum count. In one hour the tape therefore contains ten binary encoded measurements of the noise level in each channel, a given channel being monitored every six minutes. A digital to analogue converter, comprising ten stages ST6-ST60 each provided with five switch contacts 35 and an accumulator 32, is connected to a comparator 33 supplied with a reference current I 0 . The switches 35 are actuated by the holes in the tracks d-h of the tape. The comparator output is connected to AND gates 34 I -34 VI  each of which receives in succession a signal from a respective switch S60-S35 operated by perforations in the a track. Thus as the tape is advanced, the mean noise level during one hour for each channel is fed to the comparator and the respective gate 34 I -34 VI  is opened by the associated switch S60-S35. If the noise level in a channel exceeds the reference level a respective alarm A I -A VI  is energized.
Patent GB-1279504-A (GB)
Title: Float operated signalling device
Inventor: INNES ROBERT
IPC: G01F25/00
Filed: 1970-05-08
Abstract: 1279504 Liquid level indication RONALD TRIST CONTROLS Ltd 27 April 1971 [8 May 1970] 22397/70 Heading G1H [Also in Division H1] In a float operated liquid level control device in which a float 10 moves with the water 4 in a boiler 3 to move a magnet 18 between magnet reed or moving magnetic switch units 19, 20 to indicate or actuate automatic controls to start a pump, Fig. 1 (not shown), if the water needs replenishing an auxiliary chamber 23 is provided on the connecting stem 11 between the float 10 and magnet 18 and the arrangement is such that when the water 4 reaches a high level and a test check of switch 19 is required water is fed via an auxiliary conduit 25, 28 both chamber 23 at a greater rate then such water drains through an opening 24 and the float 10 sinks to effect operation of the  switch 19.
Patent GB-1152261-A (GB)
Title: Hydraeric Positions Monitoring Apparatus and Feed Back
IPC: F15B5/00
Filed: 1966-05-20
Abstract: 1,152,261. Fluid-pressure servomotor systems. BELL AEROSPACE CORP. May 20, 1966 [May 24, 1965], No.22447/66. Heading G3P. A device for monitoring the position of a pilotoperated spool valve 63 comprises a flapper 73 having one end fixed at 75 and the other end 77 in contact with a land 78 on the spool. The flapper is sufficiently flexible as to be bowed by the force of the jet issuing from a nozzle 72. If the spool moves the flapper nearer to the nozzle, the increased pressure upstream of the latter distorts the flapper away from the nozzle thereby providing negative feedback. The flapper may be caused to oscillate continuously by the jet or may be damped, e.g. by holes (94, Fig. 7 not shown) provided in the flapper in the region of the jet. In an alternative embodiment, Fig. 2 (not shown) the flapper is made less flexible except for a portion (29) thereof opposite the nozzle. In Fig. 4 (not shown), the nozzle is spring-loaded towards the flapper and responds to the output pressure to provide negative feedback, In Fig. 8, flapper 102 is pivoted at 106 and negative feedback is provided by piston 114 acting on lever 116, the latter also being pivoted at 106.
Patent GB-950798-A (GB)
Title: Improvements in means for tensioning reinforcement rods
IPC: E04G21/12
Filed: 1962-06-12
Abstract: 950,798. Pre-stressed concrete. BETONUND MONIERBAU A.G. June 12, 1962 [June 26, 1961], No. 22452/62. Heading E1V. Means for tensioning a reinforcement rod 18 comprises a tensioning jaw 7, and jawactuating means to apply the required torque and a subsequent axial tension load, coupled to the jaw 7 with limited freedom of relative axial displacement, The actuating means comprises a loading bar 2 located coaxially with the jaw 7 to engage therewith through a coupling 6, releasably attached to the jaw 7 by means of torque-transmitting formations comprising a connection of a pin 20 with an axial slot as shown. The bar 2 carries a piston 3 moving in a cylinder 1 to apply the load and is biased by a spring 12 so that the jaw 7 is urged to engage the end of the rod 18. To move the bar 2 axially before tensioning it carries a pinion 13 meshing with a driving gear 29 on a shaft 30, also carrying a gear 28 interacting with a gear 26 (through a gear 27), on a shaft 25 of a motor 24. The pinion 13 acts as an abutment for the spring 12. The jaw 7 is formed by a socket, which cuts into the rod 18, rotary engagement thereof being effected by the motor 24 (in moving the bar 2 axially) switch-controlled to give the desired jaw rotation. The jaw 7 carries a stop nut 21, which, after the tension has been applied to the rod 18, may be moved to bear against a plate 16 to hold the jaw 7 and the tensioned rod 18 while the coupling 6 is disengaged.