baber/WOPTO huggingface dataset:
Patent GB-667263-A (GB)
Title: Improvements in or relating to electric low-pressure luminescent mercury-vapour lamps
IPC: H05B41/232
Filed: 1946-07-18
Abstract: 667,263. Discharge lamps. PHILIPS LAMPS, Ltd. July 18, 1946 [July 11, 1945], No. 21537/46. Drawings to Specification. Class 39 (i). [Also in Group XXXV] A low-pressure luminescent mercury-vapour lamp which is " warm-white " at a current density of 30 ma./cm.<SP>2</SP> comprises a discharge tube whose internal diameter is about 33 mms., and a series impedance incorporated in or with it and such that when it is operated at the mains voltage for which it is designed the current density exceeds 60 ma./cm<SP>2</SP>. The series impedance is preferably such that the current density exceeds 80 ma./cm<SP>2</SP>. and is less than 300 or 250 ma./cm<SP>2</SP>. It is stated that the purple hue of the ordinary warm-white lamp is thus prevented. The luminescent material may comprise 100 parts by weight of red luminescent cadmium borate, 18-26 parts by weight of blue luminescent magnesium tungstate and 5.3-6.5 parts by weight of green luminescent willemite.
Patent GB-389718-A (GB)
Title: Improvements in paper containers
IPC: B65D3/26
Filed: 1932-08-02
Abstract: 389,718. Paper containers for liquids. TAYLOR, E. Z., 377, Oraton Street, Newark, New Jersey, U.S.A. Aug. 2, 1932, No. 21589. Convention date, Jan. 13. [Class 66.] To enable the liquid contents to be imbibed through a straw, the inner wall of the double-walled body part or double end closure of a paper container is formed with an opening 4 and the covering part of the outer wall is wholly or partially surrounded by weakening lines 5 so that it can be easily raised or torn away to uncover the opening. A tearing tab 6 may be provided. During the manufacture of the container little or none of the adhesive is applied to the part to be removed, the waxing or waterproofing substance being relied upon to give it sufficient adhesion to the inner layer.
Patent GB-1033196-A (GB)
Title: Improvements in self-regulating pitot for regulator valves
IPC: G05D16/06
Filed: 1963-05-30
Abstract: 1,033,196. Valves. LESLIE CO. May 30, 1963 [June 8, 1962], No. 21724/63. Heading F2V. A flow regulating valve is responsive to falling downstream pressure communicated to a diaphragm chamber 29 to allow the valve member 16 to open under a spring 26 and increase the flow from an inlet 12 to an outlet 13. Outlet pressure is communicated to the chamber 29 through a Pitot tube 31 and the flow velocity in the region of the mouth of this tube is controlled by a resilientlyacting throat member 35 which at low rates of flow through the valve provides a small outlet opening to increase the flow rate in the region of the Pitot. Conversely at higher flow rates through the valve the opening provided by the throat member automatically increases, whereby a substantially linear relationship exists between the flow through the valve and the demand on the downstream side over a large range. The throat member may be of resilient material or a rigid member movable against a spring or carried by a bellows, Figs. 2 to 9 (not shown). The upper end of the valve stem 18 provided a closure 20 cooperating with a relief orifice 23 in a seating member 22 carried by the diaphragm, to relieve excess outlet pressure through the Pitot 31 and diaphragm chamber 29.
Patent GB-834020-A (GB)
Title: Improvements in or relating to film projection apparatus
IPC: G03B21/20
Filed: 1956-07-13
Abstract: 834,020. Optical projection systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 13, 1956 [Sept. 19, 1955], No. 21727/56. Class 97(1) [Also in Group XI] An 8 mm. film projector has an incandescent filament 3 of however not more than 60w. and in the form of a helix with an outside diameter of not more than 2 mm. and a length of not more than 3 mm., a light collecting mirror provided directly on the lamp bulb and subtending at the filament a solid angle of more than 90 degrees and concentrating the light in a film gate 4 with dimensions of 4.5 and 6 mm., and a lens system 5 with an aperture of at least 1 : 1.9 and displaced from the gate 4 by its focal distance. The mirror may be ellipsoidal with foci at M and P.
Patent GB-680684-A (GB)
Title: Improvements in and relating to phonograph pickups
IPC: H04R1/16
Filed: 1950-09-04
Abstract: 680,684. Gramophone pick-ups. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 4, 1950 [Sept. 19, 1949], No. 21746/50. Class 40 (ii) [Also in Group XXXIX] In a moving-armature pick-up a plurality of cantilever stylus arms are provided, one end of each arm being supported at a central point of the pick-up head and the arms being rotatable about that point so that any desired arm may be rendered operative. The arrangement is particularly applicable to pick-ups for use with records having different groove sizes. In the embodiment shown, a pair of cantilever stylus arms 30 have their ends rigidly attached to the bottom of a post member 17, which is journalled vertically in the opening 15, and is upwardly urged by the spring 19. The arms 30 carry different sized styli 31, preferably of the semi-permanent type e.g. sapphire style. Each arm is provided with a guard member 32 of channel section rigidly attached to the post 17, the end portion 33 of each guard member extending downwardly around the end of the corresponding arm 30. Damping is effected by plastic blocks 34, 37 between the guard members and the arms. To effect rotation of the stylus arm assembly, the post 17 is depressed and turned, the guard members 32 riding on the bearing surfaces 42 on the pick-up head during the rotation of the assembly. To ensure that the assembly is accurately aligned between the pole pieces 9, the end portions 33 of the guard members are of reduced width so as to wedge in the channel 50, which has sloping sides 51 (Fig. 2), and a pair of projections 40 extending below the pole pieces are provided to prevent the guard members from snapping into place until accurate positioning has taken place. In the preferred embodiment, the stylus arms are separate and each has a double twist (Fig. 2), but in a modification Fig. 3 (not shown) a single twisted ribbon replaces the two separate arms. If desired, a plurality of equiangularly spaced channels may be provided in the base of the pick-up head and the stylus arm assembly may comprise an equal number of equiangularly spaced cantilever stylus arms. Specification 636,190 is referred to.
Patent GB-376041-A (GB)
Title: Automatic synchronising arrangement for dynamo-electric machines
IPC: H02J3/42
Filed: 1931-07-30
Abstract: 376,041. Synchronizing. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 30,1931, No. 21793. Convention date, Aug. 1, 1930. [Class 38 (iv).] In an arrangement for automatically connecting in parallel alternating current generators or networks when synchronized, the impulse for closing the paralleling switch is given by a differential relay responsive to two magnitudes, one proportional to the net voltage and to the frequency difference and the other proportional to the beat voltage, and operative when the second magnitude, having exceeded the first, becomes smaller again. The relay is associated with a time relay which is energized when the beat voltage exceeds that proportional to net voltage and frequency difference and is de-energized when the paralleling impulse has been given so as to prevent a further impulse. As shown in Fig. 1, the coil 66 of the differential relay is excited by a varying unidirectional voltage in accordance with the beat voltage between the network 1 and the incoming machine 2 by means of transformers 4, 5 and a rectifier G2. The coil 65 is excited by a direct current proportional to the net voltage, being derived from a machine 60 excited from the network 1 through the transformer 4 and rectifier G1, and proportional also to the difference between the frequencies of the network 1 and machine 2, the machine 60 being driven by an aggregate 90, which serves also to regulate the speed of the incoming machine, at a speed corresponding to the difference between the frequencies of the network 1 and generator 2. Preponderance of the excitation of coil 66 causes an armature 66a to be thrown to the left. This energizes a relay 63, retarted by a series choke, which closes a retaining contact 62t if energized long enough. When the beat voltage falls and the coil 65 next preponderates armature 66a is thrown to the right and the relay 63, giving the switching impulse, is energized through contact 621 on relay 62. Relay 63 closes a contact 631 short-circuiting the relay 62, which opens after an interval determined by a short circuit winding 520. The rectifier G2 may be dispensed with and quadratic relays, such as electrodynamometric measuring systems, may be used in order to effect synchronizing oversynchronously as well as under-synchronously. The relay coils 65, 66 may be connected up only when the slip voltage has reached a permissible value. A modification shown in Fig. 3 uses an arrangement of two asynchronous machines driven by the machine to be synchronized. A quantity proportional to the net voltage and to the frequency difference is obtained from the stator of one machine by exciting the other from the network and interconnecting the rotors. Alternatively a commutator machine may have its stator excited from the network and its commutator coupled with the machine 2, the brushes giving a voltage proportional to the slip and net voltage.
Patent GB-1006957-A (GB)
Title: Improvements in or relating to beds
Inventor: SCREEN STAFFORD THOMAS
IPC: A47C21/08
Filed: 1963-05-31
Abstract: 1,006,957. Retaining occupants in bed. EVERED & CO. Ltd. May 22, 1964 [May 31, 1963], No. 21826/63. Heading A4J. A dropside assembly for a bed comprises a dropside 10 and supporting means consisting of a tube 19, sleeves 27, 28 and spigots 29 for interposition between the dropside and the bed frame on which the assembly is to be supported. The dropside has a lower tube 13 rotatably mounted in the tube 19 which is provided with female dog-clutch elements 20, 24 to cooperate with male dog-clutch elements 16, 15 on the tube 13. To hold the dropside in raised position a spring-loaded plunger is mounted in the sleeve 28 and engages between a sleeve 23 on the tube 19 and the male dog-clutch element 15 to hold the latter in engagement with the female dog-clutch element 24, Fig. 4. To drop the dropside the plunger 25 is retracted by means of an operating pin 29a and the dropside slid longitudinally to the left in Fig. 1 relative to the tube 19 to disengage the dog clutches as shown in Fig. 1. Specifications 1,006,955 and 1,006,956 are referred to.
Patent GB-793595-A (GB)
Title: Plasticized and heat and light stabilized polymeric compositions
IPC: C08L27/06
Filed: 1956-07-16
Abstract: Vinyl halide polymers are plasticized and stabilized against heat and light by incorporating therein a diepoxide compound of the formula: <FORM:0793595/IV (a)/1> where each R is hydrogen or an alkyl group. Conventional plasticizers, e.g. dioctyl phthalate and stabilizers, e.g. cadmium compounds may also be present.  The polymer may be polyvinyl chloride, or a copolymer of vinyl chloride with vinyl acetate, acrylonitrile, or vinylidene chloride or a mixture of vinylidene chloride and acrylonitrile.  The compounds may be prepared by the process of Specification 768,157, [Group IV (b)].  The diepoxide may be 3,4-epoxy-(1- or 2- or 3- or 4- or 6-methyl)cyclohexylmethyl 3,4-epoxy-(1- or 2- or 3- or 4- or 6-methyl) cyclohexanecarboxylate.
Patent GB-813277-A (GB)
Title: Improvements in or relating to the control of physical characteristics
Inventor: STEVENSON IAN WATT
IPC: G05D23/20
Filed: 1956-07-17
Abstract: 813,277. Automatic temperature-control systems. KELVIN & HUGHES Ltd. July 15, 1957 [July 17, 1956], No. 22075/56. Class 38 (4). [Also in Group XL (b)] In an automatic temperature control system for a furnace in which movement of a shield or pyrometer needle interrupts the light falling on a photo-electric cell and the change in cell current actuates a control relay ; the change in current is accentuated by simultaneously reducing the intensity of the light source. In one embodiment, light from a lamp 10 falls on a photo-transistor 11, until at the desired furnace temperature the light is interrupted by a moving vane on a pyrometer (not shown). The consequent drop in collector current releases the relay 15 and also, by reducing the current in the control winding 17 of a saturable reactor 25 reduces the intensity of the lamp 10 which is in series with the reactor. In a second embodiment, Fig. 2 (not shown), the photo-transistor is replaced by a diode-type photo-cell.
Patent GB-1225044-A (GB)
Title: Method and apparatus for moisturizing shirred casing sticks
Inventor: VOO DAVID
IPC: A22C13/02
Filed: 1968-05-09
Abstract: 1,225,044. Shirred casings. U N I O N CARBIDE CORP. 9 May, 1968 [10 May, 1967], No. 22106/68. Heading A2B. Shirred casing sticks are moisturised by transporting the stick past a source of liquid from which liquid is sprayed on to the stick. The spray may be applied to either or both of the inner and outer surfaces of the stick. The liquid is preferably water. Other ingredients or additives may be used together with or in place of the water. The thus moisturised stick is packaged in a caddy.
Patent GB-666359-A (GB)
Title: Improvements in and relating to polymers of polymethylsilylenes
IPC: C08G77/60
Filed: 1949-08-25
Abstract: Polymeric dimethylsilylenes of the general formula [(CH3)2Si]n are made by reacting a dimethyldihalogenosilane with sodium in amount to remove essentially all the halogen, i.e. at least 2 mols. of sodium per mol. of the silane.  In operation an autoclave is charged with the reactants together with an inert diluent, such as octane, cyclohexane, benzene, toluene or xylene, and the mixture is heated with agitation, e.g. for 2 to 15 hours at 100 DEG  to 200 DEG  C. under a pressure of 100 to 500 p.s.i.  The reaction mixture is cooled and a solid reaction product containing unused sodium is removed by filtration from the diluent, the sodium being decomposed by adding the reaction product to a mixture of glacial acetic acid and ethanol and adding the resulting mixture to a large volume of water with subsequent recovery by filtration of the resulting solid product. The filtrate from the solid product containing unused sodium is fractionally distilled to yield different polymeric silylenes. Dimethyldichlorosilane, when treated in this manner, yielded a solid product of [(CH3)2Si]55 and, by fractionation of the solven (benzene) mixture, three different fractions including a grease-like residue; one of the fractions was identified as [CH3)2Si]6.  The products are effective in reducing or eliminating foaming tendencies of lubricating oils, and reducing the adhesiveness of butyl rubber, and the grease-like residue is capable of inducing repellency by treating non-water-repellent objects therewith.  The Specification as open to inspection under Sect. 91 comprises also the production polymethylsilylenes containing silicon-bonded chlorine, e.g. a ,o -dichloropolydimethylsilanes, by using insufficient sodium to remove all the halogen of the dimethyldihalogenosilane.  The products induce water repellency to non-water-repellent surfaces.  The calculated formula of the grease-like residue, as above obtained, is given as {[(CH3)2Si]28.[(CH3)2SiO]11 Cl2}.  This subject-matter does not appear in the Specification as accepted.ALSO:Polymeric dimethylsilylenes, [(CH3)2Si]n (see Group IV(a)), are effective in reducing or eliminating foaming tendencies of lubricating oils.
Patent GB-533021-A (GB)
Title: Improvements in and relating to mechanical movements
IPC: F16H21/36
Filed: 1939-07-31
Abstract: 533,021. Converting reciprocating into rotary motion. SOLOGAISTOA, M. H. P. July 31, 1939, No. 22189. [Class 80 (i)] Relates to mechanism for converting rectilinear into rotary motion, or vice versa, of the kind in which a reciprocating member, such as the piston-rod 4 of an engine, is pivoted eccentrically to a crank-disc 9 located in an eccentric recess in a flywheel disc 6, and teeth on the crank disc mesh with a fixed internally toothed gear 13 of twice the diameter, so that the pistonrod reciprocates in a straight line. According to the invention, the bearing-member for the disc 9 is formed by a journal-pin 8, which passes through a bore 14 of larger diameter in the disc, and two or more sets of anti-friction rollers 17, 18 are located between the journal-pin and the wall of the bore, with one or more floating race-rings 16 between them. The bore 14 is closed by a head 15 on the journal-pin.
Patent GB-424058-A (GB)
Title: Improvements in vehicles
IPC: B60F3/00
Filed: 1933-08-08
Abstract: 424,058. Vehicles for land and water. TAYLOR, A. E., Garrymohr, Levencorrach, Isle of Arran. Aug. 8, 1933, No. 22198. [Classes 108 (i) and 108 (ii)] [See also Group XXXIII] A road vehicle adapted also to navigate rivers &c. comprises a buoyancy tank 4 supported on the chassis members 1 and extending the full width of the vehicle. A propeller is provided adapted to be driven by the main or an auxiliary engine 9 and a body 5 and cab 8 are mounted on the tank. The undercarriage and spring suspension are described in Specification 424,059.
Patent GB-531799-A (GB)
Title: Improvements in wire drawing machines
IPC: B21C1/14
Filed: 1939-08-02
Abstract: 531,799. Drawing wire. BRITISH INSULATED CABLES, Ltd., CLEMENTS, W. J., and CLEAVER, F. T. Aug. 2, 1939, No. 22424. [Class 83 (iv)]- A winding-drum for a wire-drawing machine has the required reduction of diameter above the set-off 2 obtained in a number of steps, the diameter reduction in each step being from 1/16th inch to 1/8th inch. The step 3 is of less taper than the base of the drum and steps 4 are parallel. The envelope of the drum shown by the dotted line 5 has a taper of from 1¢ to 2¢ per cent.
Patent GB-330439-A (GB)
Title: An improved joinery marking gauge
IPC: B25H7/04
Filed: 1929-07-22
Abstract: 330,439. Moore, F. R. July 22, 1929. Tools for setting-out work, especially for use in joinery, which enables a series of similar pieces of work to be marked out at one setting, comprise a base 10, in brackets 12 on which is fixed a cylindrical rod 11 slidably carrying arms 16, provided with slots 25 through which pass screws to hold a blade 27 with an upper marking edge. For marking out mortises, the piece of work is located against an adjustable end plate, and the arms 16 are fixed in position to serve as guides for a scriber, the inner and outer edges of the brackets being used for the front and back of the work respectively to give the necessary taper. The work is laid on the blades 27 in the required position and given a sharp blow to mark out tenons or lengths of material.
Patent GB-276687-A (GB)
Title: An improved process for purifying hydrogen and gases containing hydrogen
IPC: C01B3/58
Filed: 1927-08-26
Abstract: 276,687. Gewerkschaft der Steinkohlenzeche Mont-Cenis. Aug. 30, 1926, [Convention date]. Methane and its homologues are obtained as by-products in a process in which hydrogen, or a mixture of gases containing hydrogen, for use in catalytic processes is freed from organic compounds of sulphur, phosphorus, and arsenic by passage at an elevated temperature and pressure over a catalyst comprising one or more metals, other than copper, having an atomic weight between 51 and 65, or one or more oxides of such metals; the catalyst is preferably precipitated on a carrier and may contain also an oxide or other compound of an alkali, alkaline earth, or earth metal. The treatment may be performed at a temperature of 200-500‹ C. under a pressure of 100 atmospheres with the use of a catalyst containing nickel and aluminium oxide. The treatment converts the impurities mentioned into methane or its homologues and readily absorbable inorganic compounds such as hydrogen sulphide. Such inorganic compounds are absorbed by alkalies &c., either in known manner or by the addition of the absorbents to the catalyst, while the hydrocarbons, being generally harmless in the processes for which the hydrogen is required. are allowed to remain in the product. To assist removal of the inorganic compounds formed inorganic substances such as an alkali nitrate or nitrite, lead chromate, barium nitrate, or manganese dioxide may also be added to the catalyst.
Patent GB-160119-A (GB)
Title: Improvements in or relating to log sawing machines
IPC: B27B29/00
Filed: 1920-07-29
Abstract: 160,119. Robinson & Son, Ltd., T., and Robinson, C. J. July 29, 1920. Sawing.-In a horizontal log-sawing machine, a single lever 23 controls the log-traversing shaft 15 and the saw-frame adjusting-shaft 14 so that either may be connected, but not both simultaneously, to a hydraulic variable-speed and reversing device 6 driven by a constantly-running pulley 8. The shafts 14, 15 carry loose wheels 12, 13 gearing with a driving pinion 11, and adapted to be clutched to the respective shafts by clutch rings 18, 19, moved by the lever 23 through a rod 22 and bell cranks 20, 21. A hand adjustment for the saw frame is provided by means of a hand-wheel 34.
Patent GB-1015763-A (GB)
Title: Improvements in or relating to processes and apparatus for cleansing
IPC: D06L1/08
Filed: 1962-06-12
Abstract: In a coin-operated cyclic apparatus for dry-cleaning clothes, the solvent comprises tri-chloromonofluoromethane or trichlorotrifluoro-ethane and 0.1-0.5% of an additive capable of forming an emulsion with water, e.g. an alkyl sulphate or amide, or a soap.
Patent GB-504111-A (GB)
Title: Improvements in or relating to the sealing of cans and like containers
IPC: B65D81/20
Filed: 1937-08-17
Abstract: 504,111. Joint - - making packing. DEWEY & ALMY, Ltd. (Dewey & Almy Chemical Co.) Aug. 17, 1937, No. 22600. [Class 122 (iii)] [Also in Group XVII] A unitary gasket for sealing purposes comprises a resilient compressible rubber portion 13 bonded to a vulcanized rubber scaling portion 14. The channel 12 is supplied with a layer of fluid rubber compound containing a vulcanizing agent. When this compound is heated and dried it forms a spongy vulcanized rubber mass 13 with a tough skin. It may consist of a vulcanizing latex compound with a film forming agent as described in Specification 466,565, [Group V], or it may consist of a concentrated latex such as the material known under the Registered, Trade Mark " Jatex " with suitable fillers and curing agents but without a film forming agent. The spongy mass is cooled and treated with a vulcanizable rubber mixture of the kind described in Specification 477,210, [Group V], in which the rubber is contained in aqueous dispersion together with a lubricant such as castor oil. This mixture is deposited over the spongy layer and dried by heat to form a vulcanized sealing layer 14. In a modification the gasket is formed by the rubber tube 15 with the vulcanized sealing layer 16. Specification 500,260 also is referred to.
Patent GB-780547-A (GB)
Title: An improved heating unit for wort coppers or the like
Inventor: PFEIFFER GEORG
IPC: C12C13/02
Filed: 1955-08-05
Abstract: 780,547. Boiling-pans. ADLAM & SONS, Ltd., G. Jan. 23, 1956 [Aug. 5, 1955], No. 22610/55. Class 64(1) A wort-heating unit 1 comprising two coaxial cylinders enclosing an annular steam space has a hollow wall 3 or walls extending diametrically and communicating at its or their ends with the annular steam space. This enables the height of the unit to be reduced. If there are more than one wall, they are parallel.