baber/WOPTO huggingface dataset:
Patent GB-316716-A (GB)
Title: Non-rotative centrifugal separator
IPC: B04C3/00
Filed: 1928-05-19
Abstract: 316,716. Marks, E. C. R., (Centrifix Corporation). May 19, 1928. Density separators.-A centrifugal separator for cleaning fluids has at one end an axial outlet with an annular race to collect impurities, and a bowl like member for impurities at the other end; the two ends are connected by a number of blades placed to form tangential entries. The apparatus is shown in Fig. 1 as a steam separator, fixed by its outlet 3, inside the boiler 2. The upper end 4 of the apparatus has a sharp lip 9 forming the rim of the central discharge orifice and surrounded by a sloping annular surface 11 terminating in a shoulder 12. The upper end 4 and the element 8 form an annular chamber or race 7 which communicates with the discharge pipe 13. The inner diameter of the ring 8 is larger than that of the outlet. The lower end 5 of the separator has an annular trough 5<1> which communicates with the discharge pipe 5e by means of the passages 5b, 5<d>, Fig. 5. The intermediate part of the separator is formed by a number of blades 16, which may have ends integrally united with the rings 18, 15 as, for instance, by casting, or they may have bent ends bolted or riveted to the rings. The blades are inclined to the radii and the inner edges 16<1>, Fig. 2, are bent to substantially tangential positions while the outer ends are bent inwards. A dish-shaped member 19 is supported by the central part of the bottom plate 5. Steam enters through the spaces 17 between the blades and whirls round in the separator. The greater part of the impurities is carried to the trough 5' and then passes to the discharge pipe 5<e>. 'The remainder of the impurities are thrown into the race 7 and are discharged through the pipe 13. The clear. steam passes out through the outlet 3. A modification for connection in a pipe line is shown in Fig. 6. The ring 8 which is extended to carry a member 25 which is clamped between the two members 21, 22 of the casing. A hole 25a in the ring 8 permits drainage when the apparatus is not working.
Patent GB-274826-A (GB)
Title: Improvements in or relating to the analysis of a mixture of gases or of vapours by automatically recording the absorption spectrum
IPC: G01J3/42
Filed: 1927-06-02
Abstract: 274,826. Soc. Anon. des Charbons Actifs E. Urbain. July 24, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spectroscopes. - Comprises a spectroscopic method of gas analysis wherein the intensity of the spectral lines in the ultra-violet region is utilized to determine the gases present in the mixture. The light is caused to traverse a tube containing the gas under test and to be received on a fluorescent screen or a photographic plate. The tube is closed at each end by quartz plates and the lenses &c. through which the light is passed are also made of quartz or fluor-spar. The intensity of the lines may also be indicated by photo-electric cells in conjunction with amplification apparatus and a galvanometer. The positions of the absorption lines and bands are characteristic for each gas in a mixture and the intensity gives a quantitative indication.
Patent GB-1005218-A (GB)
Title: Improvements in or relating to acoustic travelling wave amplifiers
IPC: H03F13/00
Filed: 1962-04-18
Abstract: 1005218 Semi-conductor devices WESTERN ELECTRIC CO Inc 18 April 1962 [26 April 1961] 15002/62 Headings H1K H3U UN U22 U30 U34 U29Y U28 and U29B A travelling-wave amplifier for acoustic waves of micro-wave frequency comprises a transmission body 11 of Piezo-electric material, e.g. an X-cut quartz slab, and an electrically biased layer 21 of semi-conductive material, e.g. N or P-type silicon or germanium. The input and output transducers 12, 13 are in the form of electromagnetic coaxial cavities, the ends 25, 26 of the quartz slab being arranged opposite the ends of the inner conductors 15, 16. The slab is shaped to focus the wave into a beam concentrated near the face of the slab to which the semi-conductor layer is attached. Thus, the electric fields associated with the acoustic beam penetrate the layer 21 and interact with the current carriers. A condition for gain is that the ratio of the velocity of the carriers V o  to that of the acoustic wave v 1  should exceed unity. Thus, for optimum gain at 1 kmc/s., # o /# s  = 1À1 and at 10 kmc/s., # o /# s  = 1À5. The velocity of the carriers is proportional to the bias voltage of source 22. The Specification refers to the alternative use of transverse waves in an A.C.-cut quartz bar and to the possibility of using surface (Rayleigh) waves.
Patent GB-759418-A (GB)
Title: Improvements in or relating to a cable tool drill for drilling earth formations
Inventor: HUDSON TOM NATHAN
IPC: E21B1/02
Filed: 1954-05-21
Abstract: 759,418. Earth-boring apparatus. RUSTON-BUCYRUS, Ltd.. May 21, 1954, No. 15047/54. Class 85 In a cable-tool drill the means, a motor 36, to cause, as drilling proceeds, unspooling of a bit-supporting cable 25 from a winch 27 is actuated under control of means, a valve 83, responsive to any abnormally high back pressure being set up in the fluid-actuated means, a piston-cylinder motor 53, that causes deflection of the cable 25, the back pressure being due to the bit 26 continuing to fall after the fluidactuated means is reversed to deflect the cable to raise the bit. The bit 26 is allowed to fall freely from a position to which it is raised by a pulley 28 mounted on a piston rod 64 of the single-acting, hydraulically-actuated motor 53 to which hydraulic fluid is supplied and exhausted through a two-way valve 81. On an abnormally high back pressure being set up in the motor 53, the valve 83, connected in the same pipe line 82, 69 to the motor 53 as the valve 81, opens and pressurized hydraulic fluid passes from the pipe line 82, 69 through said valve to actuate the winch motor 36 to cause unspooling of the cable 25 until the drilling conditions are restored to normal with no high back pressure being set up so that the valve 83 may close. The means controlling the setting of the valve 81 forms the subject matter of Specification 759,467, which'is referred to.
Patent GB-1430861-A (GB)
Title: Method of recording information on electrosensitive material
IPC: H04N1/23
Filed: 1973-03-29
Abstract: 1430861 Recording apparatus ROBERT BOSCH GmbH 29 March 1973 [30 March 1972] 15065/73 Heading H4F [Also in Division G1] In a method of recording an electrosensitive material 20 using a group of adjacent electrodes S 0 -S 15  electrically insulated from each other, for producing an arc to locally destroy the material 20, electrodes selected according to a video input E 1 , 0  are energized sequentially so that there is always a time gap between the energization of adjacent electrodes, thereby preventing bridge formation between electrodes. For recording using metallized paper, the connection time for each electrode is preferably less than that required for the burning out process to be completed, i.e. for the arc to cease. In Fig. 1, with sixteen electrodes, the signal E 1 , 0  is scanned at a NAND gate No by a continuous pulse train E 2,0 . The sample pulses are adjusted in length by a monostable 40 (itself being adjustable as to pulse length) and fed to an enable input G 1 , 1  of a decoderdemultiplexer 31. The pulse train E 2 , 0  also forms the input of a four stage binary divider 50 with outputs A 0 -D 0  which control the sequential scanning of the outputs 0-15 of circuit 31, the signal at the operative output being determined by the input G 1 , 1  and controlling the associated transistor switch T 0 -T 15 . In a second embodiment, eighty electrodes are divided into five equal groups, all of which are scanned simultaneously by signals from a single four stage divider, but each group is enabled in turn by logic circuitry receiving the output of the final stage of the divider so that there is a sequential scan over all eighty electrodes. Each electrode group has an associated decoderdemultiplexer as in Fig. 1, and the enabling is effected by switching the input G 2 , 1  to earth. By varying the length of pulses provided by monostable 40, the recorded dot size and density may be controlled for grey scale recording. The electrodes may be tungsten wires, plate at one end with copper, gold, silver or tin for soldering to the transistor collectors.
Patent GB-607198-A (GB)
Title: Improvements in or relating to fluid control means
IPC: G05D23/13
Filed: 1944-08-09
Abstract: 607,198. Thermally-actuated valves. DOLE VALVE CO. Aug. 9, 1944, No. 15147. Convention date, March 10. [Class 135] A thermally-actuated mixing valve, particularly for controlling the supply of hot and cold water to a washing machine, comprises valve members 37, 41 and 38, 42, Fig. 3, controlling the inlets 17 and 18 for hot and cold water respectively and actuated by a bi-metallic element 20 in a mixing chamber 19 from which the mixed fluid passes to an outlet conduit 61 through a shut-off valve 11. The element 20 is secured at one end to a spindle 21 which is adjustable to vary the temperature setting by an external lever 62, Fig. 1. This lever 62 is biassed in one direction by a spring 73 and actuated in the other direction by the outlet pressure of the mixed fluid in conduit 61 acting on a diaphragm 64 when the shut-off valve 11 is opened to permit the flow. The lever 62 may be held in its right-hand position corresponding to a low temperature setting by a catch 76 operated by a timing cam 95 acting on a slide 84 attached to the catch by a wire 82 so that at certain periods in the cycle of operations the valve is maintained at the low temperature setting despite the pressure acting on diaphragm 64 when the valve 11 is open. The remainder of the period in the cycle the catch 76 is released and the pressure of the fluid on the diaphragm moves the adjusting lever to the left hand or hot setting of the valve. A further manually-operated catch 93 is provided for engaging with the slide 84 to hold the catch 76 and lever 62 in one position if required. In a modified arrangement, the cam-operated catch 76 is dispensed with and a valve operated by a timing cam provided in the conduit 72 from the outlet conduit 61 to the diaphragm 64 so that the adjustment is altered for periods determined by the shape of the cam. Alternatively, the conduit 72 may be controlled by a diaphragm valve electrically controlled.
Patent GB-560415-A (GB)
Title: Means for preventing the theft of bayonet-type lamp bulbs
IPC: H01R33/97
Filed: 1942-10-29
Abstract: 560,415. Lamp-holders. BOLTON, T. E. Oct. 29, 1942, No. 15174. [Class 38 (i)] A locking device for a bayonet cap lamp comprises a projection pressed up from a curved plate inserted between the cap and holder, the projection snapping into the axial part of the bayonet slot so as to prevent turning of the lamp to release it. The plate 27 carrying the resilient projection 26 has a hole to fit over the bayonet pin 21 and the projection is rounded at its leading edge 30 so that when the plate fitted round the cap is inserted in the holder, the projection is compressed and passes into the holder and snaps into the slot 22 when the lamp is turned to its final position. The strip may be long enough to fit over both pins 21 and two projections may be provided. To remove the lamp, a key is employed haying a concave handle 32, Figs. 7 and 8, that fits against the bulb and a bent strip 33 that enters the slot 22 at the side of the projection 26 so as to guide and depress the projection when the lamp and key are turned together. Another form of key consists of pliers formed to span the lamp and having bosses on its jaws to engage the projection or projections.
Patent GB-1483148-A (GB)
Title: Heating installation comprising a heat pump and a fuel-fired boiler with a radiator circuit
IPC: F25B49/02
Filed: 1975-04-14
Abstract: 1483148 Heat pumps PROJECTUS INDUSTRIPBODUKTER AB 14 April 1975 [18 April 1974] 15259/75 Headings F4H and F4U A heating installation includes a central heating system comprising a fuel-fired boiler 11, a radiator circuit 7, 8, 9 and a hot water tank 20; and a heat pump comprising a compressor 4, an evaporator 2, an expansion valve 6 and a condenser 5. The condenser 5 is connected in parallel with the boiler 11 in the central heating system. The installation also includes means for measuring the refrigerant pressure between the evaporator and compressor and for controlling the compressor in accordance with the measured pressure. The heat pump compressor is preferably of the multi-cylinder kind whereby one or more pistons can be shut down or cut in according to the varying heat demand. Alternatively, the rotational speed of the compressor can be controlled. In addition, the compressor 4 can be arranged to be shut down or cut in in accordance with the boiler water temperature. A thermostat 25 is provided to sense the temperature of the boiler and to control the stopping of the compressor motor 26.
Patent GB-624198-A (GB)
Title: Improvements in and relating to children's seats for bicycles
IPC: B62J1/16
Filed: 1947-06-10
Abstract: 624,198. Children's seat attachments for cycles. PETTERSEN, G. N. June 10, 1947, No. 15308. Convention date, Dec. 22, 1945. [Class 136 (i)] A device for detatchably supporting a children's seat on the steering device of a bicycle between the steering device and the bicycle saddle forms a bearing permitting the seat to swing about the axis of the steering column independently of the steering device. The seat attachment device comprises an arm 2 projecting forwardly from the seat 1 and attached to it by rivets 3, 4. The forward portion of the arm 2 is bent angularly upwards and carries a fork 5 at its lower end to engage the rear side of the steering column and a hook 6 at its upper end opening in the rearward direction. The Specification as open to inspection under Sect. 91 also comprises a seat fitted behind the driver and attached to the seat pillar. This subject-matter does not appear in the Specification as accepted.
Patent GB-355660-A (GB)
Title: Improved method of sorting tea and apparatus therefor
IPC: A23F3/00
Filed: 1930-05-19
Abstract: 355,660. Sorting and breaking tea. EARWAKER, G. P., Boisahabi Tea Estate, Seleng Hat P.O., Assam, India. May 19, 1930, No. 15366. [Classes 23 and 117.] Tea is sorted and broken in an apparatus comprising a frame 1 which is rocked &c. by a crank 2, and comprises a sieve 6 and a plate 4 between which the tea is fed from a hopper 9. The finer particles pass through the sieve, while the larger ones pass out of the apparatus at 12. The distance between the plate and sieve is adjusted by screws 5. In the form shown in Fig. 3, the sieve 15 rotates while the plate 16 is fixed, the smaller particles passing through the sieve, while the larger ones are thrown by centrifugal force on to the surface 20 of the frame. The tea is fed on to the sieve through an opening 19 in the plate 16. In the form shown in Fig. 5, the tea is fed at 28 into the space 29 between a rotating conical sieve 24 and a conical casing 25. The distance between them is adjusted by screws 26. Both sieve and casing may rotate in the same or opposite directions. The surfaces of the plates 4, 16 or casing 25 may be roughened &c. for the purpose of breaking the tea.
Patent GB-378566-A (GB)
Title: Radio direction finders
IPC: G01S19/53
Filed: 1931-05-26
Abstract: 378,566. Directive wireless signalling. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Assignees of Fisher, G. R. ; 2105, Emerson Street, Palo Alto, California, U.S.A.) May 26, 1931, No. 15407. Convention date, May 26, 1930. [Class 40 (v).] In a radio direction finder currents from a directional and a non-directional aerial system are commutated prior to being combined in an indicating mechanism. In one embodiment specially adapted for use on aircraft, a loop aerial 1, arranged with its plane athwart the line of flight, is earthed at its electrical centre and tuned by condenser 2, its output feeding coils 3, 4, 5 connected in series, and the centre point of coil 4 being earthed. A non-directional aerial 6 is connected to a slip-ring on the shaft of a motor 14 so that its output is diverted alternately by distributer 16 through the phasing resistance 10 and coil 7 to earth, and through resistance 13 and coil 8 to earth. The coils 7, 8 are coupled to the coils 3, 5 respectively. Coupled to the coil 4 is the tuned input circuit 18, 19 of the receiver 20, the output of which is applied to a galvanometer 22, its direction being periodically reversed by a two-section commutator 25, 26 on the same shaft as the distributer 16. The reversals are at such a rate that the pointer of the galvanometer remains stationary. If the aerial 1 is perpendicular to the direction of the incoming waves the impulses reaching the galvanometer are of equal strength but opposite sign and the pointer remains at the centre of its scale. In any other position the impulses are of different strength and produce a deviation of the pointer giving a measure of the deviation of the aerial from the perpendicular position and its direction. A further loop aerial arranged perpendicular to aerial 1 may be provided, with switching means to connect it in the latter's place, in order to determine whether the aircraft is approaching or receding from the transmitter, the needle being deflected in different directions for the two cases. The loop aerial 1 may be replaced by two spaced open aerials, Fig. 5 (not shown), connected through variable phasing condensers to the two sides of condenser 2. All the apparatus should be shielded from direct pick-up except the aerials.
Patent GB-496253-A (GB)
Title: Improvements in expanding shoe brakes
IPC: F16D51/48
Filed: 1937-06-03
Abstract: 496,253. Internal expanding brakes; friction clutches. MEAD, H. B. June 3, 1937, No. 15418. [Class 103 (i)] [Also in Group XXIV] In internal expanding shoe mechanism for brakes and clutches the main cam 5, Figs. 1 and 2, and shoes 2 are mounted on a floating base plate 4 adapted to rock on a fixed anchor plate 6 against spring resistance and an auxiliary cam 7 coaxial with the main cam for increasing the expansion of the shoes is connected to the anchor plate 6 so that angular displacement between the plates 4 and 6 turns the cam 7. The cam 5 is operated by a brake pedal by means of a shaft 10 which passes loosely through the cam 7 which is mounted on a plate 8 having a slot 13 engaged by a pin 9 fixed to the fixed plate 6. The return springs 14 of the plate 4 are connected to the plate 6 by pivoted levers 16 engaging stops 17 in the tension direction. In a modification, the link 13 may have a roller engaging an incline on the anchor plate 6. In another modification the cam 5 is mounted on the shaft of the cam 7 and the shaft of cam 7 is connected to the plate 6 externally of the brake drum by a link and a lever, such as that shown at 18, 19, Fig. 7, for an adaptation of the invention for a centrifugal clutch in which the main cams 5 are operated by centrifugal weights 25 when the mechanism rotates in an anti-clockwise direction. The shoes of the clutch slide on pin-andslot supports.
Patent GB-529199-A (GB)
Title: Improved method of and means for applying sealing strips, labels or the like to carton ends
IPC: B31B3/72
Filed: 1939-05-24
Abstract: 529,199. Labelling-machines. HARTMANN, C. W., and SATONA, Ltd. May 24, 1939, No. 15419. [Class 73] Labels are separated from a strip and applied to the ends of cartons which are fed to the applying position by rotating, radial former arms, means being provided for stopping the machine in the absence of a carton from the former. The ends of the cartons are folded as in Specification 529,201, [Group XVII], and are then placed on the formers 12 which carry the cartons to pressing members 18, 19, 20 in turn to the applying station where a label 79, severed from a strip 21 is applied by one of a number of radial, spring - controlled, pneumatic members 25. The carton with the applied label is then subjected to further action by a presser 32 and indenting member 33. The formers are provided with recesses 12b having inclines 12c which, in the absence of a carton, are engaged by a roller 130 on a spring arm 130a, and through a connection 132 move a stop 134 to prevent the action of a camoperated, spring-returned member 137 effecting the feed of the label strip. The pneumatic arm 25 is thus not provided with a label and is extended by its spring 28 so as to engage a switch (not shown) to stop the machine. Normally the label is severed by a reciprocating knife 24 and presented to a suction member 25 which carries it past a gumming roller 29 to the applying stage where the shaft carrying the members 25 is given a translational movement to apply it to the carton. Reference has been directed by the Comptroller to Specification 516,527.
Patent GB-236910-A (GB)
Title: Improvements relating to detachable handles for drills
IPC: B25D17/04
Filed: 1925-06-15
Abstract: 236,910. Chicago Pneumatic Tool Co., (Assignees of Blanding, F. H.). July 10, 1924, [Convention date]. Percussive drills.-A separate handle readily fixed to a rock drill of the cradle or shell mounted type comprises a bar 21 carried by rods 15 mounted by means of springs 17 on a block 5 which is slid over the wings a of the drill and fixed by a bolt 10 passed through the bore of the drill feed-nut a<1> and fixed by a nut 13 against the end of the block 5.
Patent GB-221186-A (GB)
Title: Improvements in or relating to bodies acting by fluid reaction for driving, supporting and other purposes
IPC: B63H9/02
Filed: 1924-06-27
Abstract: 221,186. Naamlooze Vennootschap Instituut voor Aero-en Hydro-Dynamiek. Sept. 1, 1923, [Convention date]. Addition to 219,664. Paddle-wheels and endless-band propellers; rudders. - Rotary bodies, or bodies having a moving skin for propelling, steering and stabilizing aircraft and ships or for use in current motors as described in the parent Specification have the position and distribution of their vacuum areas varied by adjusting the ratio of the peripheral velocity of the body to the velocity and direction of the current. A body rotating about a vertical axis is described for driving a ship in a wind, the required direction of thrust being obtained by varying the peripheral velocity in accordance with the direction of the wind. The rotating cylindrical body may have projecting discs at the end or centre, or, as shown, for the purpose of increasing the vacuum in their vicinity, and these discs may be separately driven at a greater velocity than the cylinder. Alternatively the rotating body may be of ellipsoidal form so that the peripheral velocity at the centre of its height is a maximum. A rotating body having its maximum diameter rear the top is also 'described to compensate for the higher wind velocity near the top of the body. The body may be divided into zones of the same or different diameters driven at different velocities.
Patent GB-1327556-A (GB)
Title: Combination padlock
IPC: E05B67/00
Filed: 1972-04-05
Abstract: 1327556 Permutation locks WALTER KIDDE & CO INC 5 April 1972 [13 Sept 1971] 15640/72 Heading E2A  In a combination padlock, the sliding shackle B, when in its open position, may be turned clear of the lock body and pressed hard inwardly to unkey the locking sleeves D from their respective dials C so that the combination may be changed. Normally, the sleeves are held in axial abutment between a washer 62 and lugs 64 on the shackle stem, so that they move axially as a body with the shackle. The dials and discs are keyed together as shown in Fig. 10, so that they may be mutually displaced in accordance with the dial indicia. However, each sleeve is short of one tooth to provide a by-pass 82 which can, in the correct combination, pass abutments 84a, 84b and 84c on the casing. Hence the lock may pass from the locked condition Fig. 3 to the unlocked  state Fig. 4. Now, the shackle may be turned,  Fig. 7, and pressed right in so that teeth 78 clear the grooves 66 of the dials so that a new combination can be selected