baber/WOPTO huggingface dataset:
Patent GB-611009-A (GB)
Title: Improvements in or relating to electric servo motors and to systems controlled thereby
IPC: G05D3/14
Filed: 1942-09-29
Abstract: 611,009. Automatic control systems for  aircraft &c. SMITH & SONS (MOTOR  ACCESSORIES), Ltd., S., and MEREDITH, F. W. Sept. 29, 1942, No. 13685. Drawings to Specification. [Class 38 (iv)] Electric servomotor systems for maintaining a condition constant comprise detecting means adapted to produce a change in the frequency of A.C. supplied to a synchronous correcting motor in accordance with a detected alteration in the condition. A static inverter such as a thermionic valve circuit is used, whereby the motor gives instant response; the use of a synchronous motor avoids hunting. The frequency of the inverter output may depend on an inductance or condenser controlled by the detector or one detector may generate a voltage controlling a thermionic reactance in an oscillator circuit. The motor may have two polyphase elements supplied from two inverters, which are simultaneously controlled in opposite senses by the detector so that speed of the rotor depends on the difference in the speeds of the two rotating fields. In an arrangement for stabilising an aircraft about one or other of its orthogonal axes, a rate of turn device according to Specification 611,005, [Group XXXVIII], provides an alternating voltage, the amplitude of which is proportional, for example, to rate of pitching. This voltage determines the frequency of two thermionic valve inverters which in normal conditions have the same frequency. The inverters supply two phase currents respectively to stator and rotor of a synchronous motor geared, in this example, to the elevators of the aircraft. The two resultant fields rotate in the same direction and the frequencies are caused to change equally in opposite senses in proportion to the rate of pitching whereby the motor actuates the elevators at a corresponding speed. A cut-out, replaceable only by manual means, may interrupt the circuit of the motor should its pull-out torque be exceeded. The signal from the rate of change device may modulate differentially a carrier signal of the same frequency in two demodulators so that the speed of the motor is limited to that produced when modulating and carrier signals are equal. A three-phase arrangement is also suggested. The invention may be applied to the stabilization of platforms for bomb sights and cameras and to the operation of large guns. A rate of change signal may be integrated before application to the frequency control means where the motor speed is to be proportional to the change in the condition.
Patent GB-356734-A (GB)
Title: Feed apparatus for machines for handling eggs or similar objects which are easily crushed
IPC: A01K43/00
Filed: 1930-05-03
Abstract: 356,734. Testing eggs. SMITT, H. M., Bilthoven, Holland. May 3, 1930, No. 13703. [Class 28 (ii).] Eggs are light-tested as they pass forwards on trays 12 to a printing device, by means of a lamp A situated beneath.
Patent GB-549431-A (GB)
Title: Improvements in and relating to coolers, condensers and the like
IPC: F28F9/10
Filed: 1941-10-24
Abstract: 549,431. Tubular heat-exchangers. HUTTON, J., and BROWETT LINDLEY (1931), Ltd., J. Oct. 24, 1941, No. 13708. [Class 64 (iii)] The tubes' a of a condenser, cooler or like heatexchanger having tubes connected at both ends to tube plates have reduced ends and are connected to the tube plates by screwed sleeves d pressing against packing e around the ends of the tubes.
Patent GB-129019-A (GB)
Title: Improvement in Electrically Heated Gloves and other Flexible Articles, such as Boots, Clothing, Carpets and the like.
Inventor: LEMERCIER ANDRE AIME
IPC: H05B3/34
Filed: 1917-09-24
Abstract: 129,019. Lemercier, A. A. Oct. 26, 1916, [Convention date]. With heating-appliances. - To avoid straining the heating wires in gloves, boots, &c. they are attached to a lining which is arranged on the bias with regard to the main fabric. Thus, in a glove, one finger of which is shown in Fig. 3, the wires c are arranged in zigzag form following the warp and weft of the lining b and inclined to the axis. The wires are covered with asbestos thread d, Fig. 5, and are stitched on the lining by a thread e.
Patent GB-197833-A (GB)
Title: Improvements in or relating to a device for obtaining a permanent impression of the bit of a key
IPC: E05B19/00
Filed: 1922-05-16
Abstract: 197,833. Lonsdale, P. May 16, 1922. Keys.-To facilitate replacement in the event of loss, a copy is made in wax of the bit of the key. rho device used consists of a shallow tray 1 with a pivoted lid 5 secured by a catch piece 6. Lugs 3 in the bottom of the tray retain the wax securely. The flange of the tray is cut away at 8 to facilitate opening the lid. A recess may be provided in the end wall of the tray to admit the shank of the key. To obtain the impression either the wax or the key may be heated.
Patent GB-752500-A (GB)
Title: Improvements in the construction of casks
IPC: B65D25/14
Filed: 1954-05-12
Abstract: 752,500. Cold and heat retaining vessels. GRANT, R. May 12, 1954, No. 13842/54. Class 64(2). [Also in Group XVII] A cylindrical cask for containing fermented liquor &c. has an outer insulating jacket, e.g. comprising two walls 1, 2 containing insulation or a vacuum, and a rubber &c. jacket 6, fitting an inner liner 7 which is withdrawable from the jackets and is fitted with insulated end covers 10 (one shown) clamped against sealing rings 9 on the ends 8 of the liner 7 by bolts 16 securing the covers 10 to angle-sectioned end hoops 3 of the outer jacket 1, 2. The end covers have double walls and edge-rings 13 enclosing insulation or a vacuum and one or both of the covers is removable to enable the liner 7 to be withdrawn. The outer wall 1 of the main body is made in welded sections joined by hoops 4 containing rings 5. The liner 7 is of metal &c. inert to the cask contents and the end covers 10 are faced with similar material 14. Annular grooves 17 in the outer surface of the thickened ends 8 facilitate withdrawal of the liner 7 by a tool inserted through openings in the inner flanges of the end hoops 3. An opening in the side may be provided by a ring 21 extending between and welded to walls 1, 2 and by a further ring 18 welded to an opening in the liner 7 but not extending to the jacket wall 2. To accommodate the ring 18 when withdrawing the liner, a strip of the jacket 6 is removable and a notch is provided in an inner flange of a hoop 3. A removable closure 20 is sealed in the opening by a sealing ring in an annular recess on the inner surface of the ring 18.
Patent GB-573411-A (GB)
Title: Improvements in or relating to machines adapted for use in the manufacture of moulded articles
IPC: B30B15/30
Filed: 1943-08-26
Abstract: 573,411. Separating measured quantities. B.B. CHEMICAL CO., Ltd. (B.B. Chemical Co.). Aug. 26, 1943, No. 13893. [Class 106 (v)] [Also in Groups V, XXV and XXX] When the continuously-reciprocating plunger 15 descends from the position shown in Fig. 4 to compress a finely-divided mixture 100 of wood flour and thermosetting resin into a shoe heel preform, the edge E of the plunger head, coacting with a cam surface 119 fixed to a swinging shoot 27, pushes the shoot to the left, out of the way of the plunger, and by means of a chain 63; a bottomless adjustable-volume measuring slide 65 is pulled out of a box 7], and the charge enclosed by the slide drops into a hopper 29, where it rests on a hinged door 31. The plunger dwells for a short time at its nadir, and when it rises (Fig. 6), a falling weight pulls the slide 65 back into the chamber 71, where the slide is refilled by vanes on the interior of a rotating drum and the ejector pin 33 rises with the moulded preform 200. When the ejector pin drops from the Fig. 6 position, shoot 27 moves a little further to the right, until the cam 119 strikes the edge E, and this slight movement is sufficient to open the hinged door 31, by means of a link 147 connecting the door and the arm 117 ; material 100 thus drops down the shoot into the mould. When the cycle recommences, the descending plunger pushes the shoot to the left and a spring 139 closes the door 31 ; if the bar 153 has stuck, blocks 369 on the rods 113 engage screws 187 on the bar and push the latter down. Before the mixture 100 is introduced into the drum, it is heated by humidified air, and when it is in the drum it is heated by a combined heater and fan.
Patent GB-267764-A (GB)
Title: Process and apparatus for charging a liquid with radioactive emanations or gases
IPC: A61K51/12
Filed: 1926-06-03
Abstract: 267,764. Lepape, A., and Levoux, E. June 3, 1926. Radioactive preparations.-For charging a liquid with a radioactive emanation or radioactive gas the flow of a portion of the liquid from a closed receptacle is used to draw in inert gas charged with the emanation, and the liquid which remains is then mixed with the emanation in the closed receptacle. As shown, liquid in a closed bottle a is allowed to escape drop by drop at a cock R until the liquid in the receiving vessel j closes the lower end of a pipe c. During the escape of the liquid, air, filtered by a cotton plug e and charged with emanation at a radium bulb d, is drawn in by the pipes c to the space above the liquid. After closing the cocks R, r the liquid is stirred by a rotatable hollow agitator k perforated as at l, m so that by centrifugal action the charged air is drawn in and mixed with the liquid. A pin p prevents the agitator from being set in motion until the cock r is closed. A stopper q provides for the introduction of the liquid into the bottle.
Patent GB-1111640-A (GB)
Title: Improved battery-operated lift truck
Inventor: SCHUSTER FRANK CLARENCE
IPC: B66F9/075
Filed: 1967-03-28
Abstract: 1,111,640. Battery operated lift trucks. ALLIS-CHALMERS MANUFACTURING CO. 28 March, 1967 [1 April, 1966], No. 14082/67. Heading B7H. A battery container for a battery operated lift truck comprises a framework structure of angle sections 17, 16, (18), 19, 22, (23) and rails 24, (25), 26, the transverse angle section 17 and longitudinal rails being welded to a counterweight 14. An opening 31 in the counterweight 14 gives access to a coupling device 32 and slots 33 in the counterweight fit over eyes 36, for locating the unitary structure comprising the counterweight and battery container. The vertical angle sections 22, (23) extend downwardly to the same extent as the counterweight with which they support the structure when removed from the vehicle, using lifting eyes 49, (51), 52 (53). Blocks 44 (46) locate the angles 22 (23) with respect to the chassis. When the battery container/counterweight structure is removed, the vehicle can be lifted by the eyes 36, (37) and eyes 56 (57). In a modification, the battery container comprises a framework structure 74, (75), 76, 77, (78), 79 and a container 72 which can be loaded with scrap iron for a counterweight, the container resting upon the chassis and being located for easy removal by pegs 91, 92, (93), (94).
Patent GB-611833-A (GB)
Title: An improved keyless lock
IPC: E05B37/12
Filed: 1946-05-10
Abstract: 611,833. Combination locks. GASPAR, L. May 10, 1946, No. 14130. Convention date, Aug. 19, 1942. [Class 44] . The bolt 1 of a combination lock has a number of apertures 3 each comprising two circular openings 3a, 3b connected by a slot 4. The lock comprises a number of rotatable sleeves 14 extending transversely through the apertures 3 capable of actuation from both sides of the lock and each carrying a looking cam member 17 which must be turned to a horizontal position to allow retraction of the bolt. A code mechanism is mounted on each sleeve which comprises a detent cam 19, Fig. 6, for finding a zero position ; a wheel 23, Fig. 7, having recesses 24 for producing clicks by engagement with spring-loaded cams 25, and a graduated disc 29, Fig. 8, keyed to the sleeve 14 and having notches 28 in one of which is inserted a rod 27 on the wheel 23 whereby the combination may be changed. Bell crank levers 31 are pivoted to the lock casing, one arm 31a of each being adapted to engage, by its own weight notches 34 in the bolt to retain it against retraction until the other arm is displaced by the locking cam 17. The bell-crank levers do not engage the bolt until it is fully shot, a supplementary forward displacement being allowed by making the back holes 3b somewhat oval in shape. The bolt may be actuated by a rack 6 and pinion 7 or by a sliding knob.
Patent GB-450041-A (GB)
Title: Improvements in electrical time-base circuits
IPC: H03K4/86
Filed: 1935-05-14
Abstract: 450,041. Valve generating circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Ltd., Wembley, Middlesex. May 14, 1935, No. 14131. [Class 40 (v)] An oscillator comprises a condenser 9 charged over a constant current device 10 and discharged through a valve 5 triggered by synchronizing signals applied to the grid from 22, the grid and cathode of the valve 5 being connected by a conductive impedance 23 and a condenser 24. The lead to the source for biassing the grid is taken from the junction of the condenser 24 and impedance 23. This circuit limits variation of the potential difference between the grid and cathode during charging of the condenser 9 so allowing the use of a small synchronizing impulse. Specification 438,386 is referred to.
Patent GB-347021-A (GB)
Title: Improvements relating to air-heating fireplaces
IPC: F24B1/188
Filed: 1930-05-09
Abstract: 347,021. Open fireplaces. RADFORD, C. E., 905, West Colonial, Orlando, Florida, and HAYES-STEVENS FIREPLACE FURNACE CO., Inc., 521, Fifth Avenue, New York, both in U.S.A. May 9, 1930, No. 14335. [Class 126.] Heat retainers.-In an open fireplace having airheating chambers around the fire, the back and side walls are provided with fins which support heat-storing blocks which define the air-heating chambers. In the fireplace shown, the back 1 is formed with grooves 16 to receive the rear edges of the sides 2, vertical ribs 17 on the rear face, and a horizontal fin or rib 11 partially supporting firebricks 12 which form the top of the rear air chamber 8. The sides are formed with horizontal fins 9, 10 supporting firebricks 13a, 13b, forming the bottoms and tops of the side air chambers 8a. The cold air enters by inlets 6 below the side chambers and thence by passageways 19 beneath the firebricks 13a to the side and rear air chambers, whence it passes, after heating, to a passage 27 and thence back to the room.
Patent GB-179084-A (GB)
Title: Compressed air mechanism for motor cars and the like
IPC: B60K25/00
Filed: 1921-05-23
Abstract: 179,084. Soc. Lyonnaise d'Industrie Mecanique. May 23, 1921. Addition to 152,294. Pump-actuating mechanism; regulating compression.-The air-compressor of compressed-air mechanism for motor-cars claimed in the parent Specification comprises two equal and inclined compressing cylinders, the pistons being driven from a crank-shaft actuated by a worm-wheel and a worm connected to the motor shaft by an elastic joint, and the cylinders communicating with a chamber containing a movable spring- pressed piston which closes the air inlet ports at a certain pressure. The cylinders 7, 7<1> are of equal size, disposed at an inclination and surrounded by water jackets 15. Their pistons are driven by cranks 6 on a shaft carrying a worm-wheel 10 engaging a worm 11 on a shaft rotated on ball bearings through an elastic joint 14 from the car engine shaft. The inlet ports 16, 17 of the cylinders are controlled by a piston 18 which is moved by the compressed air against the action of a spring to close the ports when the pressure reaches a certain value. The air is delivered through passages 21 to a valve box 22, the valves 23 of which lead to an outlet chamber.
Patent GB-1479391-A (GB)
Title: Flash apparatus
IPC: G03B15/05
Filed: 1975-04-08
Abstract: 1479391 Electronic flash control FRANKE & HEIDECKE GmbH 8 April 1975 [11 April 1974] 14345/75 Headings G2A and G2X A flash arrangement especially for studies comprises a master flash unit as shown in Fig. 1 and any number of slave units each as shown in Fig. 2; the master unit having a flash tube 3 which is fired by camera synch contacts 7 and extinguished by a light-sensing and integrating arrangement 17, 18 and each slave unit having a tube 33 and a lightsensitive element 41 which generates (a) a start signal for the tube 33 in response to the receipt of light from the master unit and (b) a stop signal in response to the termination of light emission from the master unit. As shown, when camera synch contacts 7 are closed a trigger capacitor 6 discharges to ignite tube 3. Light from tube 3 is incident on the phototransistor 41 in each slave unit and the resulting current turns on a thyristor 35 via a capacitor 43. This allows a trigger capacitor 36 to discharge and fire tube 33. The master unit has an integrating capacitor 18 which charges at a rate determined by the light incident on a photo transistor 17. At a certain level, capacitor 18 turns on a thyristor 15 allowing a capacitor 16 to discharge and turn on a thyrotron 13. This allows capacitors 11 and 26 to discharge which turns off a thyristor 4 and extinguishes tube 3. The current in photo transistor 41 thus drops and the resulting voltage drop at resistor 42 turns on a thyristor 46 via a differentiating capacitor 50. This allows a capacitor 47 to discharge and turn on a quench tube 44 to short out and extinguish tube 33. The statement of prior art refers to radiocontrolled slave units.
Patent GB-467623-A (GB)
Title: Improvements in plant for drying, conditioning, and otherwise treating cereals and other substances
IPC: F26B21/00
Filed: 1936-05-21
Abstract: 467,623. Drying and conditioning cereals &c. CURTIS, E. E., and NEWMAN, J. E. May 21, 1936, No. 14369. [Class 58] [Also in Group XIII] Grass, cereals, leafy and other vegetable materials, granular and powdered substances are dried or conditioned by being subjected whilst on trays to the passage of a gaseous medium therethrough such medium passing in parallel through the trays and the material being moved between the preliminary and the final treatments from one tray to another. The trays 6, 7, 8, 9 having perforated floors are supported in an inclined position in an enclosure 1 that is divided by transverse walls 2, 3, 4 into compartments fitted with ledges 5 to support the trays. Hinged doors 11 are arranged at the front of the enclosure and when cereals are being treated a conveyer leading to an elevator may be provided. The walls 2, 4 are apertured or arched to permit passage of the treating medium between the compartments. A chamber 13 triangular in plan is arranged at the rear of the enclosure and is divided into two compartments 15, 16, by a central wall 14 in line with the wall 3. Each compartment 15, 16 communicates with the spaces beneath two of the trays through the open rear side of the enclosure 1 so that hot air fed to either of the compartments 15, 16 passes to the underside of the two corresponding trays to dry the grass as it passes therethrough. The air is heated by coke furnaces 22 through, over and around which the air is drawn by a fan 20 which forces the heated air through a trunk 19 past a regulating valve 24 and distributing vanes 27. A canopy 29 travels on rails 28 to cover either of the two middle trays as desired ; a mattress 30 adjustable by chains 31 prevents grass being lifted by the air current. A second canopy to cover the other tray may be fitted. A second triangular compartment 32 also divided by a middle partition 33 is arranged over the middle portion of the air chamber 13 ; this compartment is provided with apertures adapted to register with openings in the end of the canopy 29 when this is above one of the trays. In operation, the grass &c. is preliminarily dried in the outer trays 6, 9, the hot, heavily moisture-laden air being permitted to exhaust ; the material is then thrown on to the middle trays, the hot air that passes through the material then flowing through the canopy or canopies and chambers 34, 35, to a trunk 36 leading to the suction side of the fan. The air that has passed through the middle trays may thus be recirculated. Means may be provided at the ends of the canopy to secure a portion of the hot air rising from the outer trays for testing purposes.
Patent GB-612159-A (GB)
Title: Fluid catalyst catalytic cracking
IPC: C10G11/18
Filed: 1946-05-13
Abstract: <PICT:0612159/III/1> In order to heat up a fluid catalyst oil cracking plant comprising a reactor, a regenerator and a fractionating column, to get it ready for operation, hot air from heater B1 is passed through the reactor D1, and hot flue gas from heater B2 and substantially free of oxygen is passed through the fractionating column E1, both gases being drawn-off together at a point 30 between the reactor and the column.  When the temperature has been raised sufficiently to prevent condensation, superheated steam is passed in to replace the hot air in the reactor, the intermediate draw-off point 30 is then closed and the steam from the reactor passes through the fractionating column together with hot flue gas; the latter is eventually shut-off and hydrocarbon gas cycled through the system, to be followed by the introduction of the oil for cracking.  The regenerator D2 is first fed with part of the hot air and when the temperature reaches about 500 DEG  F., catalyst is fed into it and circulation of catalyst between regenerator and reactor is begun by means of the steam then being introduced into the reactor. When the temperature in the regenerator is about 600 DEG F., the combustion of torch oil introduced into it is started and the temperature of the hot air supplied from heater B1 is reduced.
Patent GB-1078431-A (GB)
Title: Improvements in or relating to irradiation units
Inventor: JONES PATRICK LEONARD
IPC: G21K5/02
Filed: 1963-04-10
Abstract: 1,078,431. Irradiation apparatus. NUCLEAR ENGINEERING Ltd. April 10, 1964 [April 10, 1963], No. 14466/63. Heading H5R. In an irradiation unit, the radiation source or sources are disposed permanently in an irradiation chamber 13 within a shielding mass 12, articles to be irradiated being conveyed to the chamber through a tunnel 14 which follows a path which is, for example, curved, so that radiation cannot escape outside the shielding mass. The shielding mass 12 may be of concrete and the tunnel of any desired cross-section, e.g. rectangular and circular in plan. Objects for irradiation are loaded on to a circular carriage at an access point 15 in the shielding, and carried round to irradiation chamber 13. Shielding blocks 17 are fitted at various positions along the length of the carriage, to attenuate any radiation passing along the tunnel, the areas between the blocks providing space for the articles to be irradiated. The tunnel may be polygonal or an unclosed loop. Tubes may be provided through the tunnel for the irradiation of liquids and gases.
Patent GB-151679-A (GB)
Title: Improvements in horns for use on road vehicles and like purposes
IPC: G10K9/22
Filed: 1919-06-07
Abstract: 151,679. Wright, C. H., and Reynolds, J. E. June 7, 1919. Horns for road veliicles &c. of the kind comprising a series of superposed tubes 1, 7, 12 have the closed end of the intermediate tube 7 formed with a central depression 10 as shown, and the outer tube or bell 12 secured to a metal cap made from two dished members 15, 16 having outwardly and inwardly directed flanges 20, 19 whic h are respectively secured to the inner tube 1 and the reed tube 4. The tubes are connected by spiders 17, 18 having inner and outer bent-over flanges secured to the respective tubes. The spider 17 at the rear end may be omitted and projecting fingers left on the end of the tube 7, which fingers are secured to the outer tube.