baber/WOPTO huggingface dataset:
Patent GB-673551-A (GB)
Title: Improvements in releasable attachments
IPC: B64F1/06
Filed: 1949-10-19
Abstract: 673,551. Releasable attachments. VICKERSARMSTRONGS, Ltd., and WALLIS, B. N. Nov. 13, 1950 [Oct. 19, 1949], No. 26852/49. Class 4. A releasable attachment, intended more particularly for application to an aircraft launching trolley as described in Specification 673,550, comprises a latch adapted to engage a detent on the attached object and to be disengaged to release the latter, a bolt operatively associated with the latch, means for applying to the bolt a loading force tending to hold it in the latchengaged position, and means for retarding movement of the bolt towards the latch-released position, such that this position is only reached after the force externally applied to the detent has been acting for a predetermined period. As shown in Fig. 1 an aeroplane is supported on the trolley by a cradle 10 through ball-andsocket joints 13, 14, and a detent 28 attached to the under side of the aircraft has a mushroom head engaged by latch segments 25, which are mounted near the upper end of a sleeve 20 encircling a bolt 19 loaded by compression springs 22 mounted between the cradle arms and a cross bar 21. The spring loading may be varied by adjusting a nut 24. Excess lift applied to the detent 28 raises the bolt 19 against the springs 22 until the latch segments 25 reach the end of the sleeve 20 and release the detent 28 and the aircraft, the vertical movement of the bolt 19 being controlled by a dashpot piston 34 in a cylinder 32, 33 whereby the release movement is made to occupy a predetermined period, governed by the setting of a needle valve 36. A one-way valve 37 is fitted in the piston 34 so that the dashpot operates in one direction only, to ensure that the bolt 19 will be restored to its initial position immediately by the springs 22 as soon a.s any transient lifting force has ceased. In a second embodiment, Figs. 3 and 4, a detent 75 is secured by latches 56 to a bolt assembly comprising a piston 44, extension sleeve 45 and spigot 46, loaded by a compression spring 48. Excess lift developed by the aircraft results in vertical movement of the piston 44 and further compression of the spring 48, the movement of the piston, by the action of a screw thread 58, causing rotation of a shaft 51 and cam 53, Fig. 4, to free the latches 56, which move inwardly as the result of the action of inclined surfaces 79 on a member 78 which engage the chamfered ends of the latches, and thus release the member 75. The necessary time delay is ensured by the retarded escape through an orifice 84 of air in an annular chamber 85 surrounding the sleeve 45. As the aircraft rises the spring 48 retracts the piston 44 so that the spigot 46 is quickly withdramm to ensure that it cannot come into contact with the aircraft.
Patent GB-272752-A (GB)
Title: Improvements in and relating to hand bags, hat boxes, suit cases, trunks and the like
IPC: A45C3/00
Filed: 1926-10-27
Abstract: 272,752. Wells, S. C. Oct. 27, 1926. Covers. - The cover of a hand bag, hat box, suit case, trunk or the like comprises a flexible flange portion overlapping the body and formed with a slit or slits, fastening means for instance of the type comprising a clasp sliding on interlocking strips being provided for securing together the edges of the slits. Fig. 1 shows a hat case having the flange 8, which is stiffened by insertions 15, slitted and provided with interlocking strips 9 engaged by a clasp 10 which carries a hasp 11 adapted to engage a lock 12 on the case. Fig. 3 shows a case the cover flange 20 of which is provided with two slits 21 and fittings as above.
Patent GB-191184-A (GB)
Title: Electric wall switches
IPC: H01H17/00
Filed: 1921-10-12
Abstract: 191,184. Marks, E. C. R., (McGill Manufacturing Co.). Oct. 12, 1921. Switches, quick-action.-In a wall switch at each complete reciprocation of a member 42, a hooked member 43, pivoted to it at its right-hand end, pivots about one of two points 45, 44 on the switch framework and so moves a spring 50 over dead centres and actuates a switch bar 46, pivoted at its left-hand end centrally in the framework, between contacts 16, 18. The spring 50 is fastened at one end to the member 43 and at the other to the contact arm 46, and the reciprocation of the member 42 is obtained by a pull in anv direction on a cord 55 attached to a knob 40. On releasing the cord 55, the spring 50 pulls the member 43 into a position to engage the alternate pivoting point 44 or 45 and move the switch arm back, on the next actuation of the cord.
Patent GB-743299-A (GB)
Title: Acylated hydrazones
IPC: C07D213/86
Filed: 1953-10-02
Abstract: The invention comprises mono- or di-hydrazones of a pyridine carboxylic acid hydrazide and an aliphatic dioxo-compound such as glyoxal, methyl glyoxal, diacetyl, acetyl acetone, acetonyl acetone and an ozone.  These dioxo compounds may be etherified or esterified and the pyridine radical may be substituted.  Reaction is preferably effected by refluxing in a lower alcohol.  The examples describe the preparation of the di-isonicotinic acid hydrazones of diacetyl, glyoxal and acetonyl acetone, and the monoisonicotinic acid hydrazone of acetyl acetone.
Patent GB-925216-A (GB)
Title: New sulphonamides and method for their production
IPC: C07D471/04
Filed: 1961-07-27
Abstract: The invention comprises suphonamides of the formula:- <FORM:0925216/IV(a)/1> wherein R1 is Cl or Br and R2 is H or CH3 and their preparation by treating a compound of the formula <FORM:0925216/IV(a)/2> wherein X is Cl, Br or NH2, with a mineral acid halide, e.g. thionyl chloride, to give a lactone of the formula: <FORM:0925216/IV(a)/3> which is then treated with ammonia or methylamine.  Starting materials of the formula II are made by condensing a quinolinic acid anhydride with a halobenzene by Friedel Crafts reaction to give 3(41-chloro(or bromo)-benzoyl-a  picolinic acid (also obtainable by Grignard synthesis), nitrating to give a corresponding 31-nitro-compound, reducing, diazotising the 31-amino compound obtained and decomposing with sulphur dioxide and a copper salt to give a 3-(41-halo-3-halosulphonyl-benzoyl)-a -picolinic acid which may be converted to the sulphonamide by treatment with ammonia. Alternatively the product of the Friedel Crafts reaction may be cyclised directly to a halogen lactone and the sulphohalide or sulphonamide group may be introduced subsequently by nitration, reduction, diazotisation and reaction with sulphur dioxide giving a lactone of the formula III.
Patent GB-382395-A (GB)
Title: Stokers for locomotives
IPC: F23K3/04
Filed: 1931-10-01
Abstract: 382,395. Mechanical stokers. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Lower, N. M.; Wabash Building, Pittsburg, U.S.A.) Oct. 1, 1931, No. 27318. [Class 51 (i).] A mechanical stoker for locomotives comprises a screw conveyer conduit 10, fixed to the boiler unit, a screw conveyer conduit 9 on the tender and driving unit, and an intermediate section 14 having a loose coupling 16, 17, 18 permitting vertical and horizontal movement between the sections 9, 14. The coupling comprises a loose collar having sliding engagement with the conveyer sections. In a modification, the walls of the collar and outlet of conduit 9 are in alignment with the walls of the section 14. Specification 378,001 is referred to.
Patent GB-685800-A (GB)
Title: Improvements in and relating to electron tubes
IPC: H01J19/52
Filed: 1950-11-08
Abstract: 685,800. Discharge apparatus. TESLA, NATIONAL CORPORATION, and VANA, J. Nov. 8, 1950 [Nov. 12, 1949], No. 27336/50. Class 39(i) The supporting or centring members 2 of an electrode system are cemented at their ends 5 to the inner wall of the envelope by a material of lower softening temperature than the envelope. The cement, e.g. borosilicate glass, is applied either to the whole rim of the centring member, or parts thereof, and may also be applied to the tube wall; after insertion of the electrode system, heat is applied from outside the tube until the cement softens.
Patent GB-723863-A (GB)
Title: Improvements in the rolling of wheaten stocks during flour milling
Inventor: KENT NORMAN LESLIE
IPC: B02B1/08
Filed: 1950-11-08
Abstract: A method of rolling wheaten stocks during flour milling comprises raising the temperature of the wheat to a temperature in the range between 90 DEG F. and 165 DEG F. and maintaining it at this temperature while it is passed through the first break rolls.  The wheat may be raised to the temperature prior to reaching the first break rolls or the latter may be warmed to the required temperature e.g. by circulation thereto of a heating fluid and unwarmed wheat led to them and thereby raised to its required temperature.  Subsequent break rolls may also be warmed to the required temperature.
Patent GB-1023988-A (GB)
Title: Improvements in thermostatically controlled mixing assembly for hot and cold water
IPC: F16K11/20
Filed: 1964-07-02
Abstract: 1,023,988. Valves. W. HONEGGER, and ARMATURENFABRIK WALLISELLEN A.G. July 2, 1964 [July 5, 1963], No. 27352/64. Heading F2V. A valve body 9 includes two closure surfaces 9b which on axial displacement of the body, close fluid connection between either a hot water inlet 2 and a hot water chamber 4 or a cold water inlet 3 and a cold water chamber 5 and a mixing chamber 6 in which the body 9 is positioned. Flow commences on rotation of a knob 20 which moves valve seat carrier 8 to the right, the extent of movement determining the quantity of flow. At the same time, the valve body 9 is moved to the right by a spring 17, the right-hand closure surface 9b remaining in contact with the seat. Hot water passes from the inlet 2 to the outlet 28, its temperature effecting a heat sensing device 29 which is filled with liquid vaporizing at a low temperature such as " Freon " this device causing the valve body 9 to be moved to the left by a lever 37 to admit cold water also to control the desired outflow temperature. The sensing device is connected to a space 31 by a capillary tube 30, the tube having a throttling point 47 to reduce the sensitivity of the heat sensing apparatus. An increased pressure in the space 31 acts through a diaphragm 34 on a piston 33 and causing this to move downwards against spring 40, to cause a rod 36 to move the lever 37. The desired outflow temperature is set by knob 32 with its scale 44, rotation of this knob causing a plate 41 to be moved, thus altering the tension of the spring 40. The hot and cold water chambers are connected by bore 16 and duct 27, the passage only being sealed by a sealing ring 15 when the valve is closed.
Patent GB-778276-A (GB)
Title: Improvements in or relating to endoscopes
IPC: A61B1/00
Filed: 1955-09-26
Abstract: 778,276. Optical apparatus. WOLF, R. Sept. 26, 1955 [Oct. 21, 1954], No. 27373/55. Class 97(1) To increase the angle of view the objective of an endoscope comprises a plano convex front lens followed by a lens in the form of a sphere, the curved surface of the front lens facing the spherical lens. Fig. 2 shows an arrangement for viewing at an angle in which light from the front lens 4 after passing the sphere 5 is reflected by a prism 7 into the remainder of the optical system. For direct viewing the objective is mounted in the end of the supporting tube 1 and the prism 7 omitted. Specification 774,451 is referred to.
Patent GB-241730-A (GB)
Title: Improvements in or relating to closure devices for petrol or oil tanks and other containers
IPC: B60K15/04
Filed: 1924-11-17
Abstract: 241,730. Ewarts, Ltd., and Smith, G. B. Nov. 17, 1924. Retaining-devices below closure.-A closure for petrol or oil tanks &c. comprises a loosely fitting cap c provided on its underside with oppositelydisposed Z-shaped spring tongues e' bent from opposite ends of a single strip of steel and adapted on depression of a conical knob g<1> on a central rod g mounted in a bush f in the cap, to be separated so that their ends e<5> engage with or beneath the neck a of the container. The conical knob of the plunger is formed with an inclined or shouldered base g<3> adapted to be seated in a countersunk recess in the bush f when the plunger releases the tongues e'. To ensure a tight joint, the usual washer d engages the top of the neck a and the lower edge of the cap engages a conical or inclined shoulder a<2> on the exterior thereof.
Patent GB-601508-A (GB)
Title: Electronic switching system
IPC: H03F3/68
Filed: 1945-10-18
Abstract: 601,508. Thermionic distributers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 18, 1945, No. 27398. Convention date, Sept. 16, 1943. [Class 40 (iii)] [Also in Group XL (c)] In a switching system for connecting one or more inlets to any one of one or more outlets, a switching device is provided selectively to apply anode potentials to amplifiers connected between the inlets and outlets. The Figure shows an arrangement for switching signals from input terminals 121 and 123 to either of output terminals 143 and 144, in which a pair of thyratrons 166 and 167, arranged so that only one can be conducting at any instant, are each connected to short when conducting the H.T. supply to one amplifier in each of the pairs of amplifiers 116 and 118, amplifier pair 116 comprising for example push-pull stages 196- 197 and 198-199 fed from a phase splitter 119 common to the pair and driving further stages 132, 138, the anode potentials of which are fed to output stages 147 and 156. The anode circuits of valves 132 and 138 are common with the corresponding stages 139 and 141 in the pair 118. The connections of the amplifier inputs and outputs are such that signals from terminal 121 go to terminals 143 or 144 while those from terminal 123 go to terminals 144 or 143 according as thyratron 166 or 167 is conducting. Since the switching potentials appear as in-phase variations at the anodes of the push-pull stages, no resultant voltage change is applied to the next stages. The thyratrons may be fired by impulses fed directly from terminals 173, 174, 191 or through amplifier 177 from terminals 181 or 182. One input and one pair of amplifiers may be omitted as in Fig. 2 (not shown), or one amplifier in each pair and the corresponding output terminal may be omitted as in Fig. 1 (not shown). Relay or hard valve circuits may be substituted for the thyratrons, which may be fired by impulses or by a substantially sinusoidal waveform. The thyratrons may be connected in a selfrestoring circuit so that a single-ended switch input may be used.
Patent GB-1151597-A (GB)
Title: Improvements in and relating to Fluid Flow Control Valves
IPC: F16K31/11
Filed: 1966-06-20
Abstract: 1,151,597. Valves. HONEYWELL Inc. 20 June, 1966 [30 June, 1965], No. 27536/66. Heading F2V. Manually operable combustion gas rotary valve comprising a main gas control valve in series with a safety latching valve, and a manual operator which is disconnected from the main valve when the main valve is in the "off" position and the safety valve is open. The valve comprises a housing 10, Fig. 1, having an inlet 12, an outlet 13 and a pilot passage 25; a rotary plug or disc valve 16 having an inlet 22, an outlet 23 and an arcuate pilot passage (24, Fig. 2, not shown); a latching safety valve 15 connected to a stem 37 which is axially displaceable but non-rotatable with respect to the plug valve 16 and which is formed at one end with an armature 28 for co-operation with an electromagnet 31 coupled to a thermostat or bi-metallic strip 32, and at the other end with a transverse pin 50 which is engaged within a T-shaped slot 51 in an operator knob 44 provided with a programming slot 53 into which a fixed programming guide 52 extends. To operate the valve the knob 44 is first depressed with respect to the stem 37 so that the pin 50 moves to the top of the vertical slot 51b and the turned-over end 52a of the fixed programming guide is aligned with the horizontal portion 53a, Fig. 6, of the programming slot. The knob is then turned clockwise whereby the plug valve is brought to the "pilot" position as the end 52a of the fixed programming device reaches the portion 53c of the programming slot. The knob is again depressed and this time displaces the safety valve 15 to the open position where it is maintained by continued pressure on the knob until the electromagnet is energized, in response to a flame set up at the pilot burner following opening of the safety valve, to hold the valve open. The knob is then released and is moved upwardly by a spring whereby the pin 50 is brought into the bottom portion of the slot 51b as the end of the fixed programming guide is aligned with the portion 53a of its slot. The knob can now be rotated to bring the plug valve to the "on" position. If the knob should be rotated to the "off" or "pilot" position from the "on" position and then rotated towards the "on" position again before the safety valve has been released by the electromagnet, depression of the knob 44 merely aligns the pin 50 with the portion 51a of the programming slot and prevents rotation of the plug valve with rotation of the knob. When the plug valve reaches the "on" position it may be arranged to close a pair of contacts for automatic operation of a remote valve associated therewith.
Patent GB-754515-A (GB)
Title: Improvements in or relating to ionisation manometers
IPC: H01J41/06
Filed: 1954-09-23
Abstract: 754,515. Cold-cathode tubes. SIEMENS & HALSKE AKT.-GES. Sept. 23, 1954 [Sept. 24, 1953], No. 27546/54. Class 39 (1). In an ionization manometer tube having a cold cathode in the form of a metal cylinder, an anode disposed on the axis of said cylinder, and a magnetic circuit the poles of which are coaxial with the cathode and are arranged one at each end of the cathode, the poles of the magnetic circuit are in the form of cylindrical rings housed in the interior of the vacuum space. In the construction shown, the tube comprises an iron vessel having a cylindrical,wall 1 and end covers 2 and 3, each with an axial bore. Permanent magnets 4 and 5, each also having an axial bore, are provided in association with the end covers 2 and 3 which together with the wall 1 complete the magnetic circuit. The cylindrical cathode 6 is mounted between the poles of the magnets 4 and 5 and sleeve members 13 and 14 attached to the end faces 7 and 8 of the cathode extend into the bores in the magnets to assist in confining the discharge to the interior of the cathode. The cathode is insulated from, and centred with respect to, the permanent magnets by mica discs 9 and 10 and is held in position by a spring member 27. A rod anode 11 secured in a cap 21 mounted on a ceramic insulator 22 is partially covered with glass or other insulating material 12 so that the effective anode surface does not extend beyond the cathode 6 and sleeves 13 and 14. To facilitate the evacuation of the interior of the cathode 6 the sleeves 13 and 14 are hollow, holes 15 are provided in the cylindrical wall of the cathode and apertures 16 are provided in the cover part 3. The wall 1 is secured in vacuum-tight fashion to a member 17 which is mounted by means of a rubber packing 18 and a screw cap 19 on a connecting member 20 leading to the receptacle, the pressure in which is to be measured. A conductor 24 leading to the cathode 6 is led through the cover 2 in vacuum-tight fashion at 23 and the tube operating voltage is fed in by a cable 25 led into a closure cap 26 as shown.
Patent GB-192993-A (GB)
Title: Improvements relating to steam condensing and feed water systems
IPC: F22D11/06
Filed: 1922-10-12
Abstract: 192,993. Weir, Ltd., G. & J., and Lang, C. R. Oct. 12, 1922. Feed-water, supplying.-In a steam-condensing and feed-supply system of the kind described in Specifications 125,149, 126,014, 128,849, and 132,035, to prevent unnecessary pumping of the water in a circulation from the feed-tank through the automatic valve in the return conduit into the system and from the overflow valve out of the system, a float-operated overflow valve is used in conjunction with the float-operated automatic valve arranged in the return conduit, as described in Specification 132,035, both floats rising and falling with the water level in the condenser and the float operating the overflow valve being set at a higher level than the float operating the valve in the return conduit. The overflow valve a controlling the return of water from the feed-pipe v through the pipe o to the feed-tank is operated by a piston acted upon by the water pressure in a tube e connected to the feed-pipe. A valve g in the tube e is so operated by a float in a chamber q in communication with the condenser w that when the water-level in the condenser falls, the valve is opened, thus lowering the pressure in the tube e and allowing the spring f to close the overflow valve. The valve d in the return conduit 4 is operated by an auxiliary valve controlled by a float in a chamber z, as described in Specification 132.035. When the water-level in the condenser falls, the valve d is opened.
Patent GB-1285486-A (GB)
Title: A vapor power system employing a refrigerant as a working medium
Inventor: BALDWIN OSCAR CONRAD
IPC: F01K15/02
Filed: 1970-06-08
Abstract: 1285486 Vapour power plant F R THIENPONT 8 June 1970 27691/70 Heading F1Q A power system comprises in inter-connected arrangement a reservoir 10 for a refrigerant, means for vaporizing and super-heating the refrigerant to produce super-heated vapour, the means including a boiler 12 and heating means associated with the boiler, pump means 14 for transferring pressurized liquid refrigerant to the boiler, engine means 16 for converting energy of the super-heated vapour into motive power and then exhausting the vapour for reuse in the system, condensing means 18 for condensing the refrigerant and means for refrigerating the condensing means. First compressor means 134 is operatively connected to the engine means to take a suction therefrom and discharge to the condensing means. The condensing means includes an insulated tank 154 of coolant and condenser coils 168 for taking the discharge from the compressor means and absorbing heat from the gas received from the compressor means. The refrigerating means includes an evaporator 166 disposed in the tank of coolant to remove heat therefrom, the condensing means being operative to condense the evaporated refrigerant which is then returned to the reservoir.
Patent GB-712688-A (GB)
Title: Improvements in or relating to apparatus for inflating bicycle tyres while the bicycle is in motion
Inventor: MISTRY POONAM CHAND
IPC: B60C23/10
Filed: 1950-11-13
Abstract: 712,688. Pneumatic tyres. MEHTA, P. A., MEHTA, S. A., MEHTA, M. A., and MEHTA, B. A., [trading as BANSI & CO.]. Nov. 13, 1950, No. 27729/50. Class 144(2) Means of inflating bicycle tyres in running comprises a pair of pistonpumps fitted to each wheel-with connections to the tyre-valves-actuated by eccentric or cam mechanism associated with the wheel-hub under the control of manually-operated stop devices. As shown in Fig. 2, an eccentric D mounted on the wheel-hub Q is used to actuate the piston-rods H1, H2 of a pair of pumps D1, D2 arranged across the wheel, the rods being connected to crossheads Fl. F2 adapted to slide in guides R1, R2 fixed to the hub and pump bodies. Pipe connections are fitted between the delivery ends of the pumps and a twoway connector Sl on the inflation valve T of the tyre. When it is desired to operate the pumps, a stop E is moved, through a cable-transmission device, to lock the eccentric against rotation with the wheel. Fig. 4 shows a modification in which the pistonrods H1, H2 are actuated by cranks 11, 12 on pinions F3, F4 geared by a chain G to a sprocket D3 on the wheel-hub Q. The operation of the sprocket D3 is controlled by means of a manually-actuated stop. In a further modification the piston-rods are actuated by bell-crank levers spring-pressed to wipe a three-lobed cam on the wheel-hub.