baber/WOPTO huggingface dataset:
Patent GB-1429418-A (GB)
Title: Method and apparatus for metering particulate material
IPC: B65G53/36
Filed: 1974-04-24
Abstract: 1429418 Discharging hoppers FASSAUER INDUSTRIES Inc 24 April 1974 17885/74 Heading B8S An apparatus for metering the discharge of particulate material from the bottom of a storage hopper 14, includes a distribution ring 61 having a horizontal surface 64 on to which aerated material is delivered, and a metering surface 63 upstanding around the periphery of the surface 64, apertures 66 in the surface 63 forming a metering edge along the line of the bottoms of the apertures, over which the aerated material gravitates when formed into a mound by rotatable distribution blades 78. The rate of discharge of material through the apertures 66 into a collecting hopper 81 is directly related to the number of blades 78 being used and the speed of rotation thereof. The blades 78 each have an aerofoil section extending in a horizontal curve towards the metering surface 63 where an upstanding portion is formed on the blade, the movement of the blades through the already aerated material causing a mound to be formed ahead of each blade whereby material gravitates down its natural angle over the metering edge. Material at the bottom outlet of the storage hopper 14 is supported centrally on a pressure plate 27, below which is mounted a pressure relief plate 25 apertured at 26a, 26b. A flexible sweep wire 35 is rotatable over the plate 25 to aerate material to facilitate its discharge through the apertures 26a, 26b and into a metering hopper 45 for feeding the distributer ring 61. A diverter cone 44 supports the central weight of material in the hopper 45. A further flexible sweep wire 80 is rotatable within the hopper 45 to further aerate the material and assist in discharge into the ring 61 through a screed ring 51 adjustable vertically relative to the distributer blades 78. The two sweep arms and the distributer blades are all rotatably driven together from a motor 71 through shafts 73, 33, 34. A photo-electric material level detection system is used to deenergize the apparatus if material in the metering hopper 45 falls below a certain level. An air entrainment system 95, 98 may be used to transport the metered material from the hopper 81.
Patent GB-349332-A (GB)
Title: Improvements in air circulating apparatus
IPC: F24F6/04
Filed: 1930-06-12
Abstract: 349,332. Ventilating-apparatus. STEWART, A. W., 150, Helen Street, Govan, Glasgow. June 12, 1930, No. 18008. [Class 137.] Air-circulating apparatus in the form of a self-contained ductless unit comprises a casing 1 housing a motor-driven fan or fans 2 and having one or more directional nozzles 4 universally mounted in sockets 8 in the casing. The nozzles may be of the form described in Specification 203,456, [Class 137, Ventilation]. The casing may contain an ice box for cooling the air, an electric heater constituted by resistance elements in the circuit of the fan motor or a humidifier comprising an electrically heated water reservoir. The apparatus may be adapted to be stood on a table or desk or to be suspended from the ceiling and may form the base of a table lamp 11, of which the lamp bulb may be in series with the fan motor.
Patent GB-415871-A (GB)
Title: A process for the production of potassium formate
IPC: C07C51/10
Filed: 1933-06-23
Abstract: In the production of potassium formate by reacting carbon monoxide in a mixture of potassium sulphate and lime at elevated temperature and pressure six molecules of potassium sulphate are employed to five molecules of calcium hydroxide, so that a precipitate of 5CaSO4.K2SO4.H2O and a solution of potassium formate are produced. The reaction mixture may be made thinly liquid by adding electrolytes such as potassium chloride, sodium sulphate, calcium chloride or formate, sodium formate, caustic alkalies or potassium formate; or the temperature may be sufficiently high (e.g. at least 50 DEG  C.) to ensure that potassium sulphate enters into solution in sufficient quantity to act as added electrolyte.  The calcium potassium sulphate may be treated with water at temperatures not exceeding 200 DEG  C. to produce calcium sulphate and potassium sulphate, or it may be treated with excess of calcium formate to produce calcium sulphate and potassium formate, or it may be treated with carbon monoxide in presence of potassium sulphate and lime at elevated temperature and pressure to produce calcium sulphate and potassium and calcium formates.  Numerical examples are given.
Patent GB-435581-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/30
Filed: 1934-06-18
Abstract: 435,581. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) June 18, 1934, No. 18037. [Class 39 (i)] In a discharge tube having both main electrodes 10, 11 connected to leads in a cap 3, the ballast resistance 15-which may be of helical wire-is enclosed in a glass tube 16 within the main envelope and the upper electrode 11 and the resistance 15 are supported by a rod 13 sealed into the envelope. A cap 14 covers the end of the rod 13. An auxiliary electrode 17-connected to the lower main electrode preferably through a resistance-extends towards the upper electrode 11. As shown, the resistance is at the side of the envelope, but it may be central and the auxiliary electrode at the side. The envelope may be enclosed in a second outer wall for thermal insulation.
Patent GB-130520-A (GB)
Title: Improvements in and relating to Electromagnetic Wave Signalling Systems.
Inventor: LEA NORMAN
IPC: H03C1/22
Filed: 1918-11-04
Abstract: 130,520. Lea, N. Nov. 4, 1918. Wireless telephony and signalling.-In wireless telephony or signalling, the potential on the grid leak 2 of a valve generator 1 is used to determine the mean grid potential of a control valve 5. The plate and grid circuits of the generator 1 are coupled in the usual way by the coils 6, 8. A transformer 4 couples the grid circuit of the control valve 5 to a microphone or other control circuit 11.
Patent GB-220298-A (GB)
Title: Improvements in or relating to closures for boxes or the like
IPC: B65D45/02
Filed: 1924-07-30
Abstract: 220,298. R÷ntgen, E. Aug. 10, 1923, [Convention date]. Lids.-The lid of a box &c. is held closed by means comprising bolts 3 which pass through the bottom, engage the vertical walls and are secured by round-headed nuts 6. The nuts 6 are rotated by flat bars 8 having polygonal holes at one end which engage prismatic bosses 6<a> on the nuts, the bar being finally placed with the circular hole at its other end over the next bolt 3, the corresponding nut being introduced and the process repeated. The final nut 6<1> which has no hexagonal boss 6<a> is rotated by a spanner 9 which is pressed against the rounded head 7<1> by a screw and nut 10. The nut 6' may be locked by means of a plate 11 having a key-hole shaped slot 13 and which can be moved laterally and secured by a screw 12.
Patent GB-151767-A (GB)
Title: An improved rotary hair brush
IPC: A46B13/04
Filed: 1919-07-23
Abstract: 151,767. Carolan, G. L. July 23, 1919. Hand - supported power - driven brushes; reservoir brushes.-A rotary hair brush for use in the hand is driven by an electro - motor in the handle A and has a reservoir for spirit scent, hair wash, or shampoo, in the brush stock B the liquid being ejected by centrifugal action through the bristles D from nozzles F of the reservoir which protrude through slots E in the brush stock. Specification 10617/94 is referred to.
Patent GB-366410-A (GB)
Title: Improvements in wireless signalling
IPC: H03G11/00
Filed: 1931-06-25
Abstract: 366,410. Wireless signalling. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. June 25, 1931, No. 18356. Convention date, June 26, 1930. [Class 40 (v).] When a wide band of frequencies or a number of frequency bands pass simultaneously through a transmitting apparatus such as a valve, sum and difference frequencies are formed whenever the apparatus operates on a non-linear part of its characteristic. The invention consists in rendering these heterodyne frequencies innocuous by arranging that the input to the transmitting apparatus is limited to less than a single octave of frequencies, or in other words that f1 is less than twice f2 where f1 and f2 are the upper and lower limits of frequency. All heterodyne frequencies then lie outside the transmitted band, and cannot interfere with frequencies within the band. The system is intended for use at relaying stations for retransmitting a whole series of broadcast programmes, either at their original frequencies or by modulation of a shorter carrier wave. For handling programmes comprised within the 200-600 metres band, two separate relaying apparatus would be provided, each handling less than an octave, say 200-350 and 350-600. Band-pass filters are employed at the input and intermediate stages of the relaying station, and may if desired be provided also at its output side.
Patent GB-1105161-A (GB)
Title: An improved kitchen utensil
IPC: A21C11/10
Filed: 1965-04-30
Abstract: 1,105,161. Measures of capacity. REXALL DRUG AND CHEMICAL CO. 30 April, 1965 [8 May, 1964], No. 18362/65. Heading B8N. [Also in Divisions A4 and B5] A kitchen utensil comprises cups 13, 14 secured together with their open mouths facing in opposite directions and is used as a pastry cutter or, one or both of the cups being imperforate, as a jelly mould or volumetric measure. Each cup has an end wall and an outer and an inner side wall the side walls being integral or integrally joined at the mouth. The outer wall of cup 13 has a flange engaging the outer wall of cup 14 and a handle 12 having knife edges 32 and bearings for a knurled decorating wheel 26. Differences in fluting in the inner wall provide differences in volumetric capacities of the cups and different shapes in pastry cut-outs. The end walls of the cups are spaced and enclosed air renders the utensil buoyant in water.
Patent GB-1035907-A (GB)
Title: A device for dicing potatoes or the like
Inventor: BROOKS ERIC
IPC: B26D3/18
Filed: 1962-05-14
Abstract: 1,035,907. Cutting vegetables. GEORGE TWEEDY & CO. Ltd. May 21, 1963 [May 14, 1962], No. 18377/62. Heading A4C. In a vegetable dicing machine, vegetables such as potatoes are pressed through a stationary, rectangular knife grid 11 and the chip-like portions produced thereby are cut transversely by two series of parallel  knives 21 to form cubes, each series of knives 21 being mounted in frames 20 with handles 19 for pivotal movement about a common pivot 18. The pusher block 13, which is mounted for vertical movement on guides 12, has a flat, lower, vegetable engaging surface so that the vegetable is  not pressed completely through the grid knives 11 thereby to leave chips suspended from the grid 11 for further sub-division. Stops 22 on the guides 12 further limit the passage of the vegetable through the grid 11 by limiting the downward movement of the pusher block 13.
Patent GB-1216274-A (GB)
Title: Razor blade, and razor blade and housing assembly
Inventor: PROUTY LEROY FLETCHER
IPC: B26B21/26
Filed: 1968-04-18
Abstract: 1,216,274. Razors. L. F. PROUTY. 18 April, 1968, No. 18418/68. Heading B4B. A razor comprises a housing 10 having top and bottom portions 12, 14, Fig. 5, releasably secured together to provide a slit 13, a blade 50 in the form of a Mobius metal strip rotatably mounted within and attached to the housing, means to advance the blade through the slit 13 to expose an edge of the blade, and means to lock the blade adjacent the slit. The blade has perforations 52, Fig. 2, and is rotatably mounted on sprockets 16, 16<SP>1</SP>, Fig. 3, and a guide-wheel 18. The blade is advanced by means of a spring catch 60 having a finger 62 engaging perforations 52 in the blade. The blade is clamped in the shaving position between a blade se 0, Fig. 5, and a blade lock 22 which comprises a screw-threaded arm 30 engaged by a set-screw 32 and a shoulder 26 slidable in grooves 46 of guides 44, Fig. 3. The blade is tensioned by means of a member 66. When the blade lock is moved rearwardly by the set-screw, moisture and lather may be squeezed out. The blade is cleaned, when advanced, by means of scrapers provided respectively at the front part of the bottom portion 14 and oppositely on the top portion 12. In a modification, the arm 30<SP>1</SP>, Fig. 10, of the blade lock 22<SP>1</SP> rests on the rim 19 of the guide-wheel 18<SP>1</SP>, and an element 38 is inserted in a cut-out portion of the blade seat 20. Further, the blade lock has pivoted sides so that the blade lock angle can be varied by turning a screw 36 which changes the position of the wheel 18<SP>1</SP>. In another modification, the axis of the guide-wheel is horizontal.
Patent GB-558540-A (GB)
Title: Improvements relating to oil burning heating stoves
IPC: F24C5/02
Filed: 1942-12-29
Abstract: 558,540. Vapour burners. MAGG, W. J. Dec. 29, 1942, No. 18452. Convention date, Dec. 4, 1941. [Class 75 (i)] Liquid fuel in a pressure container 6, is supplied through a vertical pipe 7 to a horizontal bore 9 in a circular burner head 11 and is discharged as vapour downwardly through a jet 13 where it is ignited and the flames are directed upwardly by the concave upper surface of a deflector 14 to issue through passages 15 in the castellated lower surface of the burner head. The deflector 14 is supported by a stirrup 18 having a bridge member 19 resting in a groove in the upper surface of the burner head. The burner head may be heated at starting by burning volatile fuel on the deflector 14 or in a depression A in the container 6. In a modification the flame deflector is integral with a stirrup supported by a jet plug screwing into the burner head.
Patent GB-375553-A (GB)
Title: Process and apparatus for coating the outer surfaces of pipes with a protective covering
IPC: B65H81/08
Filed: 1931-06-26
Abstract: 375,553. Moulding protective coverings on pipes. BRITISH MANNESMANN TUBE CO., Ltd., 67, Queen Victoria Street, London. June 26, 1931, No. 18515. Convention date, Nov. 1, 1930. [Class 87 (ii).] Metal pipes are coated by applying to the outer surface of the pipe molten asphalt or other bituminous substance and wrapping a strip of fabric e.g., jute, felt, &c. in spiral form around the pipe in such a manner that the fabric is located between at least two layers of asphalt &c., the layers being applied directly upon one another in a continuous process. The coating may be applied in a lathe-like machine in which the pipe is rotated while the container a for the asphalt and a spool d for the fabric, which are mounted on a saddle are moved axially of the pipe by a lead screw e. The container is heated and has one or more outlets b controlled by a valve c, through which the asphalt issues, the asphalt being spread over the rotation pipe by a stepped distributer f. The pipe may be heated. The coating may be applied in one or more stages, the pipe being first primed with a thin insulating layer of tar &c. Two streams of asphalt may be applied with an interposed layer of fabric as in Fig. 2, or a single broad asphalt stream of double the width of the fabric may be used. The fabric and outer layer may be applied after the application of the first coating.
Patent GB-585376-A (GB)
Title: Improvements relating to laminated materials
IPC: C08J5/24
Filed: 1944-09-28
Abstract: A fire-resisting laminated material is made by consolidating under heat and pressure layers of asbestos felt, paper, or fabric impregnated with a thermosetting condensation product of formaldehyde with a mixture containing a phenol having the 3 positions o and p to the OH group free, and a chlorinated phenol having at least 2 free positions o and p to the OH group. Suitable phenols are phenol itself, cresols having a high proportion of m-cresol and xylenols having a high proportion of 3.5-xylenol.  Suitable chlorinated phenols are o-, m- and p-chlorophenol, 1-hydroxy-3-methyl (or ethyl)-4-chlorobenzene, chloro-derivatives of 3.5-xylenol, and chlorinated phenolic substances containing a substantial proportion of one or more of these compounds.  Partly chlorinated phenol, m-cresol, or 3.5-xylenol may be used.  Other phenols, e.g. o- or p-cresol, p-ethyl phenol, xylenols other than 3.5-xylenol, and other chlorinated phenols may be added to the reaction mixture.  The phenols may be substituted in the m-position, e.g. with alkyl groups. The phenolic mixture and formaldehyde are reacted with the aid of an alkaline catalyst, or an acid catalyst followed by treatment with hexamethylene tetramine.  The resin, after separation of water, is dissolved in ethyl alcohol or acetone to yield an impregnating varnish.
Patent GB-1058112-A (GB)
Title: Improvements in and relating to esters
IPC: C07C69/02
Filed: 1964-05-06
Abstract: Alkenyl acetates are prepared by contacting an olefinic compound with a homogeneous liquid phase mixture containing HOAc (optionally with a normally liquid inert organic vehicle), a Pd catalyst, LiOAc and/or KOAc, and Cu(OAc)2, the concentration of the Cu(OAc)2 being at least 10% greater than its maximum concentration in HOAc (optionally with said vehicle) at the same temperature.  Examples describe the preparation of vinyl, isopropenyl, cyclohexenyl and a butenyl acetate using respectively ethylene, propylene, cyclohexene and butene.
Patent GB-479736-A (GB)
Title: Improvements in tubular heat exchangers adapted for use in external combustion engines employing a permanent gas as the working medium
IPC: F23R3/60
Filed: 1937-07-06
Abstract: 479,736. Casings for heat-exchangers. NEW ENGINE CO., Ltd., and MALONE, J. F. J. July 6, 1937, No. 18765. [Class 64 (iii)] The casing of tubular heat-exchanger for use in hot-gas engines is made in two parts 1, 10 which slide one over the other to allow expansion and contraction of the tubes 4, and packing 11 is provided between the parts to prevent leakage of gases from the casing. The ends and sides of the casing are lined with refractory brickwork.
Patent GB-907445-A (GB)
Title: Vaporizing burner for liquid fuel, more particularly for boilers
IPC: F23D5/00
Filed: 1961-05-24
Abstract: 907,445. Vapour burners. ZANDER, E. May 24, 1961 [Slay 27, 1960], No. 18805/61. Class 75 (1). A vapour burner comprises a spherical combustion chamber formed by a lower hemisphere 4 containing a vaporizing dish 13, and an upper removable hemisphere 2 having an outlet nozzle 3. Inclined air inlet apertures 8 are provided in the walls of the upper and lower hemispheres. An annular air duct 6 is formed between the upper hemisphere 2 and a surrounding cover 5 provided with a handle 10. The cover 5 is attached to the upper hemisphere by ribs and flanges (not shown) and is located on the burner base 12 by pins 11. The vaporizing dish 13 is provided with radial ribs 18 and is adjustably screwed on a threaded pin 14 projecting through the bottom of the lower hemisphere 4. Fuel supplied to the lower hemisphere through a bore 24 trickles over the edge of the dish. A fan 19 driven by a motor 20 is housed within the base 12. Air supply apertures 21 in the base 12 are regulated by means of an apertured ring 22.
Patent GB-731644-A (GB)
Title: Improvements connected with hand trucks
Inventor: DONALD JOHN MCLAREN
IPC: B62B3/04
Filed: 1953-07-08
Abstract: 731,644. Hand trucks. A. P. MANUFACTURING CO., Ltd. July 8, 1954 [July 8, 1953], No. 18903/53. Class 108 (1). A hand truck has a foot-piece c which when extended from the truck, Fig. 3, may be used as a pivot to elevate the load. The foot-piece c is carried by rods d slidable in tubes e and connected by a cross-rod g, so that when the rod g is thrust forwards by the operator's foot it is held in the extended position by pivoted gravity catches j.
Patent GB-1418053-A (GB)
Title: 2- -o-alkylthio-phenyl-1,3-diazacycloalkene hydrohalides and their production
IPC: C07D271/06
Filed: 1973-04-19
Abstract: 1418053 2 - (o - Alkylthiophenyl) - 1,3 - diazacycloalkene hydrohalides BADISCRE ANILIN- & SODA-FABRIK AG 19 April 1973 [22 April 1972] 18927/73 Heading C2C The invention comprises 2 - (o - alkylthiophenyl) - 1,3 - diazacycloalkene hydrohalides of the formula in which R<SP>1</SP> is hydrogen, halogen or an aliphatic radical; Y is one of the radicals and the individual radicals R<SP>2</SP> are identical or different and each is hydrogen or an aliphatic radical; R<SP>3</SP> is hydrogen or an aliphatic cycloaliphatic, araliphatic, aromatic or heterocyclic radical; and X is a halogen. The compounds are prepared by reacting a benzothietane-2- spiro-2<SP>1</SP>-(1<SP>1</SP>,3<SP>1</SP>-diazacycloalkane) of the general formula in which R<SP>1</SP> and Y are as above with an alkyl halide of the general formula X-CH 2 -R<SP>3</SP>.
Patent GB-500018-A (GB)
Title: Improvements in or relating to closure caps for collapsible tubes or like containers
IPC: B65D51/04
Filed: 1938-06-25
Abstract: 500,018. Closure caps for collapsable tubes. LUCKEL, W. June 25, 1938, No. 18933. Convention date, June 25, 1937. [Class 125 (iii)] A closure cap for collapsable tubes or the like comprises a lower sleeve portion 1 screwed on to.the threaded neck of the tube 15, Fig. 1, and a cover 6 pivotally engaged with the part 1 when this part is screwed on to the neck of the tube, but automatically released therefrom by unscrewing the part 1. The sleeve 1 is formed with a conical flange or skirt 16 and with integral lugs 4, 5 slotted at 7, 8, Fig. 4, to receive arms 9 projecting from the end 19 of the cover 6, Fig. 2. The cover is guided into the closed position by the lugs 4, 5 and is secured therein by a nose 10 engaging in a recess 11. The closure may be pressed from artificial material.
Patent GB-996579-A (GB)
Title: Improvements in directional sound-receiving apparatus
IPC: H04R1/38
Filed: 1962-05-16
Abstract: 996,579. Microphones. AKUSTISCHE UND KINO-GERATE G.m.b.H. May 16, 1962 [May 17, 1961], No. 18945/62. Headings H4J and H4R. A directional sound transducer comprises two condenser microphones one of small sound detour acting as a treble transducer the other of relatively larger sound detour acting as a bass transducer, the bass transducer, being omnidirectional at high frequencies, is connected to the treble transducer by a low pass filter. In the described embodiment, Fig. 4, the bass transducer 1 is connected via a resistance R1 to the treble transducer 2 and the input to the amplifier, the resistor R1, the capacitance of the treble transducer, and the stray capacitance of the amplifier input forming an R.C. low pass filter for the bass transducer output.
Patent GB-801296-A (GB)
Title: Improvements relating to metal-ceramic electrical resistors
IPC: H01C17/065
Filed: 1955-06-30
Abstract: A resistor (see Group XXXVI) is made by firing a compact mixture of raw ceramic material and 35-70 per cent of a reducible oxide of tungsten and/or molybdenum to a temperature of 500 DEG -700 DEG C for one hour and then to 1500 DEG C.  In one example, a milled mixture of 40 per cent of kaolin and 60 per cent by weight of molybdic oxide in methyl alcohol was extruded with polyvinyl alcohol in water to form rods or tubes and then fired.  In an alternative example, the material is extruded with lucite in ethylene dichloride.  In place of or in addition to, molybdic oxide, molybdates or reducible oxides of tungsten (WO3) or tungstates may be used.  Alumina could be used in place of kaolin. The polyvinyl alcohol in water and the lucite in ethylene dichloride act as lubricants in the die and as temporary binders.