baber/WOPTO huggingface dataset:
Patent GB-1008791-A (GB)
Title: Forced-flow vapour generators
IPC: F22B35/12
Filed: 1962-07-27
Abstract: 1,008,791. Forced flow steam boilers. SULZER FRERES S.A. July 27, 1962 [July 27, 1961], No. 29025/62. Heading F4A. A forced-flow, once-through vapour generator which may operate at subcritical or supercritical pressure has a recirculating pump 38 disposed in a line 30 which forms part of the main through-flow system upstream of heating tubes 14 which extend in parallel between inlet and outlet headers 34, 36 in the furnace chamber 10 of the generator. The delivery pressure characteristics of the pump 38 are such that during start-up and at low loads part of the working medium recirculates from the header 36 via line 48 to a mixing vessel 26 upstream of the heating tubes 14 and pump 38 and in which mixing with fresh feed supplied by a pump 22 takes place. At a certain designed part load the pressure drop in the heating tubes 14 equals the pressure rise due to the recirculating pump 38 and recirculation therefore ceases. Above this load and up to full load the pump 38 continues to operate merely boosting the pressure of the through-flow medium. As shown a second and reserve pump 40 may be provided in parallel with the pump 38 having the same characteristic and a by-pass line 28 may also be provided. Check valves 42, 44, 46 49 prevent undesired by-pass flow. The invention is of particular value if the pumps 38, 40 are driven by submerged-type motors (Fig. 2, not shown) since idling of these motors may cause damage to the motor bearings. Specification 1,008,795 is referred to.
Patent GB-520997-A (GB)
Title: Improvements in or relating to hop-picking machines
IPC: A01D46/02
Filed: 1938-10-07
Abstract: 520,997. Hop-picking machines. McCONNEL HINDS, Ltd., McCONNEL, F. W., and HINDS, G. A. Oct. 7, 1938. No. 29180. [Class 6(iii),] A hop-picking machine comprises a rotor with a number of fingers pivoted around the circumference and which move outwardly under centrifugal force. The machine shown has two rotors on parallel shafts 11 turning in opposite directions. Each rotor comprises a number of discs 19, three rods 26, and fingers 21. pivoted on the rods, each between two adjacent discs. The hop bines are fed manually to pass up between' the rotors, round a worm'guide 28 and under a jockey pulley 42 engaging an endless belt 41, which passes round pulleys 40. The fingers detach the hops and leaves from the bine as the bine is drawn upwards between the rotors. The guide worm causes. the bines to move across the width of the rotors. Each disc 19 is encircled by a strap 22 having a downwardly extending guard bar 23, the lower end of which is engaged in a channel 24 so that the bars are arranged in form .of a comb. The rotors -the guide worm 28 and the belt 41 are driven by belts from the shaft' of a motor 18. In a modified form of apparatus one rotor is above the other and the bine is forced horizontally between them by a conveyer formed of two sets of endless cords. According to the Provisional Specification a conveyer for passing the bines between the rotor comprises two endless chains with cross-pieces to which the bines are attached.
Patent GB-1116876-A (GB)
Title: Actuation device for the synchronous engagement of a coupling mechanism
IPC: F16H61/02
Filed: 1965-07-09
Abstract: 1,116,876. Clutch control. SOC. ANON. FRANCAISE DU FERODO. 9. July, 1965 [9 July, 1964], No. 29290/65. Heading F2L. A clutch control for a motor vehicle comprises a touch-sensitive gear shift lever switch K which is closed during ratio shift to energize a coil 25 and effect change over of a relay switch 27 which energizes a clutch release coil 81 (or 114, Fig. 3, not shown) and de-energizes a coil 38 of a relay switch 40 that changes over to energize a throttle opening coil 56 and to break the normal ignition circuit L, whereafter a switch N in an auxiliary ignition circuit M is automatically closed when the speed of the clutch output shaft D exceeds that of its input shaft B to synchronize the clutch. During clutch reengagement the engine is maintained under the control of the above synchronizing arrangement for one-half second after the switch K is opened by a delay condenser 37 in parallel with the coil 38. At vehicle speeds below 15 k.p.h. a centrifugal governor Q opens a switch 49 to prevent energization of the throttle opening coil 56 and closes a switch 52 to ensure continuous energization of the ignition coil G through a second auxiliary circuit R. As shown a separating clutch A in series with a hydrodynamic torque converter 15 is controlled by an electromagnetically operated valve 80 which in the position shown supplies pressure liquid from a pump 76 to the torque converter 15, the outflow from which passes through a chamber 74, orifice 73 and one-way valve 75 to a line 85 that is vented. The pressure drop across the orifice 73 causes clutch engagement. On energization of the coil 81 the valve spool 80 moves right to vent the chamber 74 and supply pressure liquid from the pump 76 through line 85 to a chamber 71 for clutch disengagement. During clutch disengagement a drag-ring valve 90 of the type described in Specification 1,006,693 selectively connects a pressure sensitive capsule 88 which operates the switch N to the chamber 71 or 74 in response to relative rotation between the input and output shafts B, D. In Fig. 3 (not shown) the clutch is of the Gravina indirect centrifugal type, wherein an output disc 103 is clamped to an input flywheel 101 by applying axial engaging force to a presser plate 102 by centrifugal masses 108 acting through a cam plate 106, thrust bearing 107 and springs 104, and pivoting on a floating carrier 110 which, for centrifugal clutch engagement is frictionally clutched to the input B to drive the masses and for clutch disengagement is held stationary by energizing an electromagnetic brake coil 114 which collapses the masses and permits tension springs 116 to release the clutch. During clutch disengagement a drag ring switch of the type described in Specification 937,037 is open when the output speed exceeds the input speed to de-energize a relay 118 and close the switch N.
Patent GB-221999-A (GB)
Title: Improvements in manufacturing pure anthracene and pure carbazol
IPC: C07C7/148
Filed: 1923-11-20
Abstract: The process of the parent Specification for purifying anthracene by distillation with petroleum hydrocarbons of boiling point 260 DEG  C. to 315 DEG  C. is modified by carrying out the distillation in the presence of caustic potash, so that the anthracene crystallizes from the distillate, and the carbazole may be obtained by boiling the residue in the still with water and drying the precipitated carbazole.  In examples, powdered potash is added to a hot mixture of crude anthracene and gas oil and the whole heated under a reflux to 250 DEG  C.  The reflux is then disconnected and the distillation carried out either at ordinary pressures or in vacuo.  The anthracene is obtained in a "fluffy" condition especially suitable for the manufacture of anthraquinone.
Patent GB-1222540-A (GB)
Title: Improvements in or relating to hydropneumatic suspension
IPC: B60G17/044
Filed: 1968-06-20
Abstract: 1,222,540. Hydropneumatic suspension units. FICHTEL & SACHS A.G. 20 June, 1968 [22 June, 1967], No. 29357/68. Heading F2S. A self-levelling hydropneumatic suspension unit has a working chamber containing liquid loaded by a gas spring 10, the liquid containing a piston 2 reciprocation of which results in transfer of liquid, by an associated pump, between the working chamber and a reservoir 15. The self-levelling action is produced by such transfer of liquid and, in order to provide rapid response to changes in level, it is arranged that liquid transfer from working chamber to reservoir or vice versa occasions greater change in working chamber volume than in reservoir volume so that a relatively small transfer of liquid can produce a relatively large corrective displacement of the piston 2. This condition is brought about by providing a movable partition between the reservoir chamber and the working chamber, the partition having a smaller area at its end 22 facing the reservoir than at its end 30 facing the working chamber. In Fig. 1, the working chamber consists of the liquid-filled spaces 4, 5 and 8 plus the gas-filled space 10, and in Fig. 2 of the liquid-filled spaces 4 and 5 plus the gas-filled space 10. In both cases a pump plunger 20 having a longitudinal bore 13 communicating with the reservoir 15 pumps fluid to and from the hollow piston-rod 3 of the piston 2, the self-levelling action being controlled by valves 19, 21 and a port 18 in a conventional manner. In both embodiments the piston contains damping valves 6.
Patent GB-229397-A (GB)
Title: Coal bins and like receptacles
IPC: F24B15/04
Filed: 1923-11-22
Abstract: 229,397. Verity, J. W., and Verity, V., (trading as Verity & Son). Nov. 22, 1923. Contents, delivering.-A receptacle a for coal, granular material &c. is provided with one or more baffles, grids &c. b and with a hinged or sliding plate h for preventing, at will, escape of the contents through the delivery aperture e. The plate h may be held against the baffle b by a catch such as k. The receptacle a is placed in an outer casing r provided with a projection v to register with converging guides wand with positioning springs x. The casing r is also provided with a lid, a delivery aperture r<1> and a retaining band for a scoop.
Patent GB-1301039-A (GB)
Title: Improvements in or relating to crop drying devices
IPC: F26B25/00
Filed: 1970-06-17
Abstract: 1301039 Conveyers TEXAS INDUSTRIES Inc 17 June 1970 [19 June 1969] 29487/70 Heading B8A [Also in Division F4] Crop is circulated as also described in Divisional Specification 1,301,040 by means of conveyers 12, 19 and 27 through a drying chamber 11 supplied with heated air. In an embodiment, Fig. 1, crop is introduced through an inlet 6 to the conveyer 12 which comprises two crankshafts 13 rotated anticlockwise and interconnected by members 15 carrying resilient tines 14 and 17 which project into the perforated duct 9, 10 of the conveyer 12 by varying amounts during their paths of movement so as to convey the crop on to the topmost of the endless conveyers 19. Each conveyer 19 comprises a pair of spaced chains supported by rollers on the side walls 2, and interconnected at intervals by beams for entraining the crop. The front pinions 23 of the conveyers 19 are rotated at a variable speed by means of an endless belt (&c.) driven by an adjustable pawl-and-ratchet mechanism operated by an eccentric rotated by an electric motor. The electric motor also drives the drum of the conveyer 27 and the lower crankshaft 13 of the conveyer 12 via endless belts (&c.) and gearing. Crop is delivered by the lowest conveyer 19 to the conveyer 27 which comprises a drum provided with resilient tines 26 and rotated anticlockwise. A liquid-fuel burner discharges into a ventilated chamber 29 from which combustion gases and air are drawn by a blower 30 for delivery into the drying chamber 11 and subsequent exit at 31. Drilled crop is discharged from the drying chamber 11 by turning a flap 32 to the fullline position shown in Fig. 1, so that dried crop slides into chute 35 which co-operates with the tapering inlet of a blower conveyer delivering crop to a crop store or treatment apparatus or other transport mechanism. The upper portions of the side walls 2, the roof 4, and inspection windows 39 are formed of glass or transparent plastics which transmits solar radiation. Each member 15 carries at least one knife 55 co-operating with retractable knives 57. Some of the tines 17 may project from the inlet 6 so as to unload wet crop from a vehicle. Alternatively, the inlet 6 may be enlarged to expose the upper sides of the members 15 which carry sharp-edged projections to co-operate with the conveyer floor of a vehicle to introduce wet crop into the dryer. Alternatively, a pair of horizontal rollers may be disposed in the inlet 6 to crush and introduce the wet crop, and the spring-assisted closure flap 58 is dispersed with. In another embodiment, Fig. 10, the roof 60 is supported above the side walls (to permit gases to escape) and overlaps the side walls. A short conveyer 72 may be swung down with a flap 71 so as to pass crop to, and prevent air from passing to the chamber 59 from, the duct 68 of a blower 66 disposed at one side of the drier for effecting drying and discharging of the crop.
Patent GB-287601-A (GB)
Title: Improvements in motor vehicle radiators
IPC: F02N19/10
Filed: 1926-11-22
Abstract: 287,601. Carpmael, R. H. Nov. 22, 1926. Radiators, motor-car and like.-Screens C, D, preferably having shutters E controlled by means accessible to the driver, are provided at the front and rear of the radiator A, and a heating means such as an electric coil F or an electric or oil lamp is fitted inside the front screen so as to prevent freezing of the water when the engine is not in use. The hot air may be led from the rear screen through a valved pipe H to the vehicle bonnet. In a modification a front screen only is used without shutters but with a drop door at the bottom to admit cooling-air when running in cold weather. This screen may have removable panels in front for admitting more air in hot weather.
Patent GB-1083814-A (GB)
Title: Improvements in and relating to ovens
Inventor: HENSON THOMAS LESLIE
IPC: A21B1/02
Filed: 1963-07-25
Abstract: 1,083,814. Direct-fired ovens. BAKER PERKINS Ltd. July 3, 1964 [July 25, 1963], No. 29566/63. Heading A2A. In order to intensify the heating of the baking chamber 2 of a direct-fired baker's oven 1 having a fan 11 for circulating the heating gases (Fig. 1) burners 6 and gas inlet ducts 7 are so arranged as to cause combustion products from a burner flame to become entrained with a stream of heating gases issuing from an inlet duct. Goods to be baked are conveyed through the chamber 2 on the upper run 5 of an endless, moving steel band. Ribbon-type burners 6, burning oil or gas, are disposed above and below the run 5. Each burner 6 comprises an elongated tube, disposed across the chamber 2, and a slit, through which a sheet of flame is propagated towards a duct 7. The fan 11 draws hot gases from the chamber, through outlets 12, and returns these gases into the chamber, through conduits 14 and 15 and the ducts 7, which may be turnably connected to said conduits. The oven also comprises a blower 10 for combustion air and an extraction fan 9. Heat-radiating plates 8 are disposed across the chamber 2, below the run 5, and a burner 6 and an inlet duct 7 (Fig. 2) are disposed below each plate 8. The duct 7 is adjacent to a downwardly inturned edge 8a of the plate, and the burner 6 is adjacent to the opposite edge..Due to the venturi effect, created when the stream of heating gases from the duct. 7 is deflected by the edge 8a, hot combustion products are drawn, from the burner 6, under the plate 8, and become entrained in said stream of heating gases.
Patent GB-849678-A (GB)
Title: Drying apparatus and method
IPC: B29C71/00
Filed: 1957-09-20
Abstract: 849,678. Drying materials in long lengths. AMERICAN VISCOSE CORPORATION. Sept. 20, 1957 [Dec. 17, 1956], No. 29593/57. Class 34(1) Plastic film &c., is dried by passing over heated rollers 1, 1, Fig. 1, in countercurrent to hot air which is blown into contact with the rolls from above and below at such a velocity that it moves through the drying housing without the aid of a static pressure differential therein. Air is blown in through conduits 30, 30<SP>1</SP>, each of which has an elongated jet nozzle 44, Fig. 5, opening into a space adjacent the rolls. The latter are boxed-in by an hydraulically suspended sectioned ceiling 15, side panels 13 and end panels which are slotted for film entry and exit. Moisture and 'vapour-laden air is conducted from the rolls through discharge scoops 34 and is passed through suction pump assemblies (not shown), for re-entry, with make-up air, to the conduits 30, 30<SP>1</SP>, after processing to remove impurities and adjust the humidity and temperature. For threading the film through the rolls the ceiling sections 15 are removed. The air is guided along the tops of the rolls by suspended baffles 45, Fig. 3, and observation windows 50 are incorporated in the ceiling 15.
Patent GB-1037969-A (GB)
Title: Improvements in or relating to router planes
IPC: B27C5/10
Filed: 1964-07-22
Abstract: 1,037,969. Woodworking. NEEDHAM & JACKSON Ltd., and V. E. NEEDHAM. Sept. 2, 1965 [July 22, 1964], No. 29615/64. Heading B5L. A router plane comprises a cutter 6 on the spindle of a motor 1 mounted, or adapted to be mounted, on a base 3, and a sole plate 8 disposed under the base and having an opening 8a in which the cutter is located, the sole plate being attached to the base so that it can be adjusted relative thereto to regulate the depth of cut. The motor may be of the portable drill type and mounted in a substantially vertical position, the lower end of the motor being releasably retained in a seat in the base by a screw 5 at the upper end of an arm 4 extending upwardly from the base. The sole plate is adjustably secured to the base by screws 9 which threadedly engage the sole plate and pass through slotted clearance holes in the base, further screws 10 threadedly engaging the base and abutting the sole plate locking the sole plate in its adjusted position relative to the base to determine the depth of cut. The sole plate may be adjusted laterally of the base by a screw 11. A gauge 19 is vertically adjustable on a pillar 20 to regulate the depth of cut of rebates and a further gauge may be provided to control the width of the rebate. In another embodiment, Fig. 4 (not shown), the sole plate is divided into forward and rear parts 13, 14 separately adjustable by screws relative to the base. In a further embodiment, Fig. 5 (not shown), the rear part 15 has an inclined forward extension 16 and the front part 17 is slidably adjustable on the extension by means of a screw 18. The blades 7 of the cutter may be tipped with tungsten carbide and are removable for sharpening and adjustably mounted in slots in the boss 6 of the cutter.
Patent GB-285979-A (GB)
Title: Process of and apparatus for the treatment of granular material in mixing and filtering vats
IPC: B01F3/12
Filed: 1926-11-24
Abstract: 285,979. Carlier, J. Nov. 24, 1926. Stationary mixers with rotary stirrers.-A process and apparatus for treating granular material in mixing vats, for example for mashing grist in brewing, is characterized by the introduction of fluids, such as hot water or steam, into the mass successively into different layers thereof and at all points with the layers. As shown in Fig. 1, a mash-tun 1 is provided with an axial shaft 2 having slidably mounted thereon hollow radial arms 9 secured to a casing 7 and communicating with hollow perforated blades 18 employed to stir the mass. Hot water or steam is supplied to the blades 18 through a flexible pipe 14 from a reservoir such as 15. The pipe 14 is secured to a fixed cover-plate 12 on which the casing 7 rotates with the shaft 2. The arms 9 'together with the blades 18 and the casing 7 are raised and lowered while rotating by a lever 49 fulcrumed at 53 and engaging a strap on a collar 48<1> slidable upon and rotating with the shaft 2, the collar 48<1> being connected to the arms 9 by rods (not shown). A stirring-paddle 23 at the bottom of the tun, also rotated by the shaft 2, is similarly movable during rotation by a lever 51 engaging a collar 50<1> connected to the paddle by feathers 50 slidable in grooves 6 in the shaft 2. The levers 49, 51 are actuated by nuts on rods 49<1>, 52 respectively. The tun 1 is provided with a perforated false bottom 24 and with drainage channels leading to a draw-off cock 27. The shaft 2 is driven at about 10 to 15 revolutions per minute during the preliminary mixing of the granular material and at a much slower rate during the introduction of the fluid. The driving mechanism, Fig. 5, comprises a shaft 30 connected with the shaft 2 through worm or skew gearing 28, 29. The shaft 30 is driven during the first stage by a belt passing over a pulley 31 and during the second stage through friction wheels 33, 34 by a belt pulley 36. The change is effected by a rod 39 moved axially by a wheel 41 screw-threaded thereon and rotated by an endless chain, the motion of the rod moving the driving belt from the pulley 31 to a loose pulley 32 by a belt fork 47 and bringing the wheel 34 into contact with the wheel 33 by the dropping of a counterbalanced lever 44, adapted to move the pulley spindle 35 laterally in its bearing 37, into a slot on the rod.
Patent GB-815525-A (GB)
Title: Production of tetracyclines
IPC: C07C233/00
Filed: 1955-10-18
Abstract: A tetracycline is produced by preparing a solution of a 4 epi-tetracycline having the general formula <FORM:0815525/IV (b)/1> in which R1 is a hydrogen, chlorine or bromine atom and R2 is a hydrogen atom or a hydroxyl group, at least one of R1 and R2 being a hydrogen atom, or a salt with an acid or a base of such epi-tetracycline, adjusting the pH of the solution to within the range 3.0 to 5.0 and allowing the solution to stand until a substantial proportion of the epi-tetracycline is isomerized to the corresponding tetracycline and, if desired, reacting the tetracycline with an acid or a base to produce a salt thereof.  The preferred solvent is an oxygenated, polar organic solvent such as methanol, ethanol, butanol, acetone, 2-ethoxy ethanol, 2-methoxy propanol, glacial acetic acid, tetrahydrofuran, dimethylformamide and mixtures thereof.  The preferred pH is 3.5 to 4.5 maintained by the use of buffers such as sodium dihydrogen phosphate.  Isomerization may be carried out at room temperatures and may require 24 hours at 25 DEG C.  The tetracyclines may be recovered from the solutions so produced by (a) fractional crystallization, (b) countercurrent extraction, (c) chromatographic adsorption, or (d) partition chromatography.  In the example, an aqueous solution of ammonium 4-epi-tetracycline was adjusted to pH 4.25 with formic acid and allowed to stand overnight. The precipitate was removed, washed with water, treated with hydrochloric acid to form the hydrochloride and recrystallized from 2-ethoxyethanol.
Patent GB-1377257-A (GB)
Title: Cyclic ketones with a phenethylaminomethyl lateral chain
IPC: C07D/
Filed: 1972-06-26
Abstract: 1377257 2 - [N - (α - Methylphenethyl)aminomethyl]-α-tetralones SOC D'ETUDES DE RECHERCHES DE DIFFUSION ET D'EXPLOITATION 26 June 1972 [29 June 1971] 29798/72 Heading C2C Novel 2 - [N - (α - methylphenethyl)aminomethyl]-α-tetralones of the general formula wherein Z is a chlorine or fluorine atom or a methyl group, and acid addition salts thereof, are prepared by reacting α-methylphenethylamine or an acid addition salt thereof with an α-tetralone of the general formula in the presence of formaldehyde or a source thereof, followed optionally by salification of a resulting free base with an acid. Pharmaceutical compositions having anorexic and sedative activity comprise, as active ingredient, a 2 - [N - (α - methylphenethyl)- aminomethyl] - α - tetralone of the first general formula above or a therapeutically acceptable mineral or organic acid addition salt thereof, together with a therapeutically acceptable vehicle,