baber/WOPTO huggingface dataset:
Patent GB-358266-A (GB)
Title: Improvements in fertilizer distributors
IPC: A01C15/08
Filed: 1930-09-29
Abstract: 358,266. Distributers for manures. INTERNATIONAL HARVESTER CO., 606, South Michigan Avenue, Chicago, U.S.A. Sept. 29, 1930, No. 29113. Convention date, Oct. 31, 1929. [Class 6 (i).] In manure distributers of the type having a hopper 1, the bottom 2 whereof is formed with long distributing slots disposed substantially parallel to, and for substantially the full length of, the longer side of the hopper, and having oscillating distributing members such as 4, 5, all located above the bottom 2, to feed the manure to the slots so as to provide even broadcasting across the whole width, an oscillating agitator feeder member 6 is provided in the hopper, having fingers or equivalent device sliding over and in contact with the distributing members. The agitator feeder may be placed between a rib or cap 7 covering a central slot 3 and the members 4, 5. In a modification the cap 7 may be dispensed with and the middle or rib portion of the feeder 6 made sufficiently wide to cover the slot. The members 4, 5, and feeder 6 may be oscillated by eccentric gear drives from the road wheels to cranks, the stroke whereof may be varied. Provision may be made for rendering the feeder 6 stationary temporarily. Each distributing member may consist of an outer rib with fingers projecting over the edge of the slot 3, and the slots in the members 4, 5, formed by the fingers may project over the edges 9, 10, of the bottom 2. A plurality of slots may be provided in the hopper bottom and covered by caps 7 or by solid pieces 8 in the agitator feeder. The members 4, 5, and feeder 6 may be provided with a net or grill and may be oscillated in the narrow dimension of the hopper.
Patent GB-535948-A (GB)
Title: Improvements in portable oil burning safety heaters
IPC: F24C5/04
Filed: 1939-11-02
Abstract: 535,948. Oil stoves. IMBER, J., and ALADDIN INDUSTRIES, Ltd. Nov. 2, 1939. No. 29244. [Class 126] A portable oil stove for warming up internal combustion engines comprises an oil reservoir A provided with a burner B preferably of the annular wick type surrounded by a chimney C and supplied with air through a passage 1, 2 in the base of the oil reservoir. A casing D surrounds the burner and spaced metallic gauze elements 19, 20, 34, 35 are provided at the side and top of the stove and at the entrance of the draught passage 1, 2 as indicated at 3. The oil reservoir is supported on legs 9 fixed to a tray 7 and is provided at the top with an annular ring 15 which forms a seating for the base 18 of the casing D which has upper and lower apertures 22, 23. Above the gauzes 34, 35 is a cover plate 40 which carries a cup 45 for collecting oil drippings from an engine or machine to which heat is applied. A guard 49 attached to the tray 7 surrounds the lower part of the stove.
Patent GB-701340-A (GB)
Title: Improvements relating to electric rotary switches
IPC: H01H19/63
Filed: 1951-12-13
Abstract: 701.340. Rotary switches. BUSCH-JAEGER LUDENSCHEIDER METALLWERKE AKT.- GES. Dec. 13, 1951 [Dec. 16, 1950], No. 29258/51. Class 38(5) In a switch in which a contact 5 mounted on a spring 1 is deflected away from a fixed contact 6 by rotation of a cam 2, the contact 5 is arranged immediately adjacent the portion 4 of the spring engaged by the cam.
Patent GB-463779-A (GB)
Title: Improvements in or relating to a filler block device for rolling mill housings
IPC: B21B31/08
Filed: 1936-10-28
Abstract: 463,779. Rolling - mills. STEVENS, A. H. (United Engineering & Foundry Co.) Oct. 28, 1936, No. 29294. [Class 83 (iv)] To maintain the level of the pass in a rolling- mill when rolls of different diameter are substituted, a spacing frame 9 with additional exchangeable distance pieces 17 of the required thickness is located in the housing below the roll bearing block, the frame being provided with a shaped end 11a, so that the usual hook 12 for lifting the rolls can also be used to lift the frame. The frame has a guide 21 and flanges 22 to fit the bottom of the opening in the sides of the mill.
Patent GB-204930-A (GB)
Title: Improvements in coke oven doors
IPC: C10B25/06
Filed: 1922-10-27
Abstract: 204,930. Gourley, H. Oct. 27, 1922. Coke ovens.-The upper portion b of a -coke oven door is made separate from and of stronger material than the lower portion a, the two parts being secured together by bolts b<1> passing through a flange a<2> formed on the lower portion. The upper and the lower portions may be reinforced by metal strips b<2>, a<1> respectively, and either or both portions mav be reinforced in the manner described in Specification 6020/14.
Patent GB-686109-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J19/34
Filed: 1949-11-16
Abstract: 686,109. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 16, 1949 [Nov. 23, 1948], No. 29344/49. Class 39(i) A thermionic valve comprises an anode, a cathode, a grid structure between the anode and cathode comprising two sets of elongated conductors 25, 26 supported in spaced and aligned relation in the direction of the electron flow from cathode to anode, and a common conducting support 31 having a direct electrical connection to each of the two sets of conductors for maintaining them in fixed relationship to each other and to the cathode and serving as a current lead to both sets of conductors. The two sets of conductors may each be provided with a helical winding 34, the two helical windings being preferably aligned with each other. To prevent overheating of the envelope the wall 4 may be of low dielectric loss glass, the ends 4a, 4b being of a glass which seals well to the metal members 2, 5. The cathode may have a diameter of 2 inches, the inner grid a diameter of 2.328 inches. the outer grid a diameter of 2.700 inches and the anode a diameter of 4 inches. The helical winding 34 may have 5.5 turns per inch. With the construction shown a driving power of 90 kw. will produce an output of 852 kw. compared with 582 kw. for a normal single grid triode and the efficiency is about 75 per cent compared with about 65 per cent.
Patent GB-1398085-A (GB)
Title: Sensor for carburettor icing
IPC: F02M17/50
Filed: 1971-06-23
Abstract: 1398085 Fluid-flow measurement: pressure measurement H M KENDALL 30 May 1972 [23 June 1971] 29437/71 Headings G1L GIN and GIR [Also in Division H1] In a device for sensing the formation of ice in an I.C. engine carburetter, a first passage 5 applies a pressure, corresponding to the static pressure or the static pressure less a vacuum pressure derived from the velocity of air flowing through the carburetter air duct 2, and a second passage 4 applies a second or total head pressure, corresponding to the combination the static and dynamic pressure derived from the air velocity flowing through the air duct 2, to a sensing means to give an indication and/or to effect a control upon the total head pressure falling to the static pressure due to obstruction of the second passage 4, by the formation of ice. In the device shown in Fig. 1 the passages 4 and 5 apply the pressure to opposite sides of a diaphragm 7 to close contacts 13 and operate a light 21 should ice form on saw cuts 17, Fig.4, formed on the end 16 of duct 4 projecting into the air duct 2. In alternative embodiments Figs.6 and 7-10 (not shown) the first and second pressure operates on opposite ends of a magnetized piston to actuate a light. The Specification also states that high temperature coefficient electrical resistance may be used as the sensing device.
Patent GB-1100243-A (GB)
Title: High power dissipation laser structure
IPC: H01S3/04
Filed: 1966-06-30
Abstract: 1,100,243. Lasers. NORTH AMERICAN AVIATION Inc. 30 June, 1966 [30 June, 1965], No. 29444/66. Heading H1C. A laser comprises a plurality of bodies of laser active material spaced apart along the laser optical axis to form coolant channels between the bodies. In the arrangement of Fig. 1, a water-cooled pump flash tube 28 is supported in parallel relationship with a laser hollow elongated support tube 34 extending the full length of an outer closed tube 20. The active medium of Nd<SP>+3</SP> glass, ruby, Nd<SP>+3</SP> doped calcium tungstate or Nd<SP>+3</SP> doped YAG is in the form of a plurality of circular discs 36 which discs are supported on their thin edges parallel to each other at Brewster's angle in a cut-away upper portion of the support tube 34. The support tube 34 is connected to a source of coolant which flows into the interior of the support tube 34 flows through the spaces between the laser discs 36 and into the volume around the flash tube 28 before being removed through an outlet. The ends of the laser support tube are sealed by mirrors 48 or alternatively external mirrors may be employed. In the arrangement of Fig. 1A the flash tube 28 is provided with an independent cooling system 60 forming a parallel arm with the coolant system for the laser structure. In the arrangement of Fig. 2 (not shown), the flash tube (60) is positioned along the optical axis of the device and surrounding and spaced from the lamp is a tubular laser segment supporting member (64) having a series of grooves in its inner surface which grooves support the annular laser segments in parallel arrangement normal to the optical axis, the flash tube passing through the centres of the segments. A plurality of ducts (68) connect the peripheral volume of the support tube with the channels (70) between the laser segments and in operation a coolant having a refractive index the same as the laser active medium flows along the flash tube and through the channels (70). The laser segments may be arranged at Brewster's angle, Fig. 3 (not shown), and may be square or triangular as well as circular as shown. The coolant may flow inwardly across the laser segment faces before cooling the lamp and helical lamps may be employed. A plurality of stacks may be arranged around a central flash lamp and would be optically interconnected by prisms. Alternatively, a plurality of spaced laser stacks could be arranged with flash lamps located between each adjacent pair of stacks.
Patent GB-390094-A (GB)
Title: Cycle stand
IPC: B62H1/00
Filed: 1932-10-21
Abstract: 390,094. Cycle supports. FUGLISTALLER, A., Anglikon-Wohlen, Switzerland. Oct. 21, 1932, No. 29500. [Class 136 (i).] A cycle stand, of the type in which two pivoted supporting legs are adapted to be automatically spread transversely when being swung down in the longitudinal direction of the cycle, are resiliently held in the lowered position for use, and, on being released, automatically fold up into their raised inoperative position, is constructed in the following manner. Supporting legs 11 are pivoted for transverse spreading movement on pins 12 passing through a transverse bolt or shaft 9 adapted to turn in an inverted U-shaped bracket 1 bolted to the chain stays 8<1> near the crank bracket, the front ends 11<1> of the supports 11, which pass through a slot in the shaft 9, being pressed by a spring 17 against inclined guide edges 16 of an aperture 15 cut in a plate 12<1>, which is secured by means of lugs and rivets 14 to the bracket 1. When the supports 11 are turned on the shaft 9 from the horizontal position shown to the upright operative position, their lower parts 11<11> are caused to spread outwards by the inclined guides 16, and the supports are held in the operative position by the engagement of their upper ends with recesses 21 in spring arms 22. When the supports 11 are released, by moving the cycle forwards, a coil spring 19 having end arms 191, 19<11> returns them to the inoperative position.
Patent GB-373532-A (GB)
Title: Improvements in roller mills
IPC: B02C4/30
Filed: 1931-10-24
Abstract: 373,532. Roller and roller-and-ring mills; conical mills. KNUPFFER, P. VON, 2, Canovastrasse, Friedenau, Berlin. Oct. 24, 1931, No. 29578. [Class 59.] In a roller mill for grinding corn, metal foil, &c. one or more of the rolls is as a whole of resilient construction. The rolls 2, retained in cages 19, Fig. 1, are constructed as helical springs which are pressed into contact with a central driven roller 1 by wedges 5, Fig. 2, bearing on the external casing 4. Spacing strips are inserted between the wedges which thus form cutting edges with the springs. The grain &c. enters at 22 and the ground material is carried out by an air blast which enters at 18 and leaves at 17. The springs may have a right- and left-hand helix to prevent axial thrust or they may be conical or tapered towards each end. The abutting edges of the spring are rounded or tapered to prevent any self-grinding action between the coils. The centre roller I may have a helical groove on its surface or be surrounded by a spring. The grinding surface of the spring may be grooved transversely or provided with cross-shaped grooves. The pressure of the rollers may be adjusted by the movement of a tapered liner 7, Fig. 18, on which they bear or the mill casing may be made in sections which can be drawn together by bolts, or the centre roller may be expanded. The liners may be grooved or perforated for the passage of the air blast or the abutting edges of the springs may be grooved, and these grooves may be engaged by spikes or teeth on the central roller to ensure positive revolution of the spring roller. Two mills may be combined as shown in Fig. 18, the ground material from the central mill falling on to a screw thread 23 on the inside of the roller 24 of the outer mill by which it is conveyed to the outer mill rollers, the air blast being arranged in parallel or series through the mills.
Patent GB-209521-A (GB)
Title: Improvements in fastenings or catches for attache cases, boxes, bags and the like
IPC: A45C13/10
Filed: 1922-10-30
Abstract: 209,521. Frenchs, Ltd., and Winn, C. L. Oct. 30, 1922. Fastenings for attachÚ cases, &c. -A fastening for attachÚ cases, &c., which may be used in combination with the usual locks, comprises a tongue of metal 5, secured to the body, which engages and is gripped in a channel on the lid formed by a strip 7 bent as shown. A projection 9 on the strip 5 engages a recess 10 on the strip 7. The strip 7 may be bent to U-shape forming two projecting tongues, and the position of the strips 5 and 7 may be reversed.
Patent GB-1100348-A (GB)
Title: Improved optical system for line follower
Inventor: DIPROSE KENNETH VICTOR
IPC: G05D3/00
Filed: 1964-07-22
Abstract: 1,100,348. Photo-electric line follower. HANCOCK & CO. (ENGINEERS) Ltd. July 1, 1965 [July 22, 1964], No.29602/64. Heading G1A. [Also in Division G2] In a photo-electric line-follower of the kind where a spot of light in scanning the line crosses it at an angle and the time taken from the beginning of the scan to the instant of crossing provides a steering signal to the photo-electric head, the scan can be inverted with respect to the line to permit a cutting tool associated with the head to work on either side of the line. Fig. 5b shows one direction 105 of the scan 107, which upon inversion is from top left to bottom right and which is achieved by replacing the plane mirror 116 Fig. 6b off which the light rays 124, 127 forming the spot are reflected by the two angled mirrors 117 and 118 thus reflecting the light rays twice and in the process inverting the scan. The plane and angled mirrors are mounted upon opposite faces of a block rotatable about axis 119 to readily interchange them; the angled mirrors are positioned further from the axis than the plane mirror to compensate for the additional path length created by the double reflection. Successive scanning spots are formed by a disc having a series of holes spaced around the edge which travel over a mark containing a slit the length of the scan. The initial timing pulse is created by making the spot strike a photo-transistor at the beginning of the scan.
Patent GB-975139-A (GB)
Title: Pastilles containing living attenuated polio virus
Inventor: KANAREK ALEXANDER DAVID
IPC: A61K39/13
Filed: 1962-08-01
Abstract: A water-based pastille for the oral administration of live polio vaccine in dosage unit form comprises a homogeneous gelled pastille formulation which can be poured at a temperature below p  50 DEG  C. and contains at least 20% of a pharmaceutically acceptable polyhydroxylic excipient of the class comprising polyhydric alcohols and sugars, a pharmaceutically acceptable gelling agent and at least 105 units of living attenuated polio virus. The polio virus is preferably a mixture of Types 1, 2 and 3. Glycerol, glycerol and sucrose or glycerol, sucrose and glucose may be used as polyhydroxylic component.  Gelatin with or without acacia, starch and/or dextrin may be used as the gelling agent. Optional additions are (a) a hydroxy or amino carboxylic acid such as citric acid, glycine or serine for stabilizing the polio virus, (b) a preservative, e.g. methyl p-hydroxybenzoate and (c) colouring and flavouring materials.  An aqueous suspension of the virus in magnesium chloride solution is added to the pastille base at a temperature below 50 DEG  C. and the liquid mixture is allowed to set at a lower temperature.  Specification 929,036 is referred to.
Patent GB-927271-A (GB)
Title: Improvements in or relating to sampling apparatus
Inventor: CROWTHER DERICK
IPC: G01N1/22
Filed: 1958-09-16
Abstract: 927,271. Turbidometers. COAL INDUSTRY (PATENTS) Ltd. Sept. 16, 1959 [Sept. 16, 1958], No. 29649/58. Class 97 (3). A grit sampling apparatus comprises a conduit 1 terminating at one end in a sampling nozzle 2 which is inserted through a hole 41, in the chimney or duct 40, a steam or compressed air ejector 3, or an electrically driven gas extractor pump, at the other end of conduit 1 so that gas can be drawn into the conduit 1 through the nozzle 2, there being arranged serially along the conduit 1, grit extracting means, such as an axial type separating cyclone 4 with collecting hopper 5 and a glass wool filter 6, a valve 17 for adjusting the quantity of gas flowing through the conduit, a device such as a gauge 28 measuring the pressure across an orifice 26 for indicating the quantity of gas flowing through the conduit 1, a pressure control valve 35 to adjust the static pressure of the gas, as detected by a gauge 27, and heaters 19 to vary the temperature of the gas. Initially the portion of conduit 1 shown in Fig. 1, is disconnected from that shown in Fig. 2. and filter 6 inserted through opening 31, layer closed by cover 32, into an enlargement 30. Air is now passed through a filter, not shown, along the conduit 1, being heated by the electrical heaters 19 so that free moisture, emulsions and the like present in filter 6 are removed. The filter 6 is cooled in a desiccator and weighed. The two parts of conduit 1 are now connected by a substantial flexible tubing and ejector 3 started so that gas is drawn through the conduit 1, the heaters 19 being so adjusted that the gas temperature, as indicated at 29, is the same as that in the chimney 40 and the valves 17, 35 so arranged that the readings taken on pressure gauges 27, 28 bear a definite relationship to conditions prevailing in the chimney. The dry weight of grit deposited in hopper 5 and filter 6 is then measured after a definite time of operation.
Patent GB-445782-A (GB)
Title: Improvements in and relating to control systems for electric motors
IPC: H02P25/12
Filed: 1934-10-17
Abstract: 445,782. Induction motors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and ADKINS, B., 13, Fisher Avenue, Paddox, Rugby. Oct. 17, 1934, No. 29725. Addition to 424,005. [Class 35] It is stated that in apparatus as described in the parent Specification it sometimes occurs that the change in the angle of the voltage delivered by the exciter necessary to effect the necessary compensation is half the change in angular separation between the two sets of brushes ; in such a case one set of brushes only need be moved and the apparatus is simplified accordingly. An auxiliary winding may be provided on the slip regulator connected to one of the sets of brushes, or to a third set, and used to assist in the correction of the power factor. A constant resistance may be connected in the circuit of the auxiliary winding, and the correction applied only when the motor is near synchronous speed, or, by employing a three-phase rheostat, the correction can be applied throughout the speed range.
Patent GB-906385-A (GB)
Title: Nesting hand trucks
IPC: B62B3/14
Filed: 1960-08-29
Abstract: 906,385. Hand trucks. KAPPEN, J. W. Aug. 29, 1960, No. 29771/60. Class 108(1). The load-supporting surface 7 of a handtruck is inclined downwardly towards the centre line and is tapered from the wide end where it is supported on two wheels 5 towards the narrow end where it is supported on a single wheel, thereby allowing similar trucks to be nested. The recesses at the sides of the load-supporting surface may be filled by extension pieces secured to a frame hinged to the truck.
Patent GB-396363-A (GB)
Title: Improvements in apparatus for cleaning and treating feathers
IPC: B68G3/10
Filed: 1931-10-27
Abstract: In apparatus for treating feathers comprising a steam-heated steam chamber provided with a receptacle for supplying chemicals, three receptacles containing respectively a disinfectant, a moth-killing agent, and a dye and each provided with a locking valve, are so arranged on the steam supply pipe that their <PICT:0396363/IV/1> contents can be atomised in the steam current before it reaches the feathers.  A double-walled steam chamber g is charged with feathers from a hopper l by means of an air suction pipe i, the discharge being effected through a pipe k.  A preliminary cleaner m with rotating blades and a sieve, an agitator driven by a pulley f, a so-called de-aeration chamber e, and a dust collector h are provided. The steam supply pipe a has a valve d whereby steam can be led to the interior of the chamber or to the outer jacket. Containers b<1>, b<2>, b<3>, each with an outlet valve c, contain disinfectant, moth-killer, and dye respectively and are connected by a common conduit to the steam pipe a.  The added chemicals may be passed through an atomizer before they enter the steam chamber.
Patent GB-1187025-A (GB)
Title: Improvements in or relating to Feeding Sheet Material.
Inventor: PRETTY FREDERICK ALEXANDER
IPC: B21D43/28
Filed: 1966-07-02
Abstract: 1,187,025. Cutting-out presses. SAMCOSTRONG Ltd. 3 July, 1967 [2 July, 1966], No. 29813/66. Heading B4B. An hydraulically operable cutting-out press comprises a work feed arrangement for feeding sheet material intermittently therethrough, the work feed arrangement comprising a frame 16 on which is supported a work-table 20 connected at opposite ends to opposite ends of a chain 22 which passes over a sprocket 26 mounted on the shaft 28 of an hydraulic motor M, admission of fluid to which is controlled by a solenoid valve SV1. The shaft 28 has mounted thereon a wheel 30 which is sensed by a transducer T to create electrical pulses which are fed to a pre-set counter BC transmitting a signal to arrest the movement of the table 20, a signal being transmitted at the same time to a control box PC to initiate an operating stroke of the press beam 14, which carries a knife, relative to a bed 12. Another solenoid valve SV2 is provided to enable the table 20 to be moved at a slow speed before it is arrested. The wheel 30 may, as shown, have alternate projections and recesses sensed by an inductive transducer; alternatively the wheel may have a concentric row of apertures sensed by a photo-electric transducer. The counter BC is preferably a transistorized batch counter device.