baber/WOPTO huggingface dataset:
Patent GB-1236285-A (GB)
Title: Apparatus for adjustably modifying a beam of radiant energy
IPC: G01J1/24
Filed: 1968-08-12
Abstract: 1,236,285. Spectrophoto-meters. PERKINELMER CORP. Aug.12, 1968 [Aug.28, 1967], No.38382/68. Heading G1A. [Also in Division G2] Apparatus for adjustably modifying a beam of radient energy (e.g. light) comprises an attenuator 18 of the comb-type of rectangular configuration and which exhibits a varying optical characteristic along its length supported on a pair of pins 26, 28 are in contact with each longer edge and vertically aligned, the pins having flanges 34, 36, and an angled lever mechanism 43, 45 connected to an ear 22 at one end of the alternator 18 for reciprocable movement longitudinally so as to adjust the modification of a beam intercepted by the device, the pins 26, 28 solely serving to constrain the alternator from both linear and angular misalignment. A rectangular slit 12 defines the crosssectional dimensions of the beam and the pins 26, 28 are aligned along the transverse centre line of the slit 12 and are rigidly fixed to a mounting 10 in which the slit is formed. The ear 22 of the attentuator is pivotally fixed 48 to lever mechanism on the angle between arms 43, 45. The lower arm 45 is fixed to a pivot 46. Intermediate pivot 48 and upper end of arm 43 is fixed a driving rod 52. This rod is pressed into driving engagement with a wheel 56 by a resilient finger 72 on an arm 62. Arm 62 is mounted on a wheel 68 and about a pivot 64. A motor 80 drives wheel 68 which in turn drives wheel 56 through wheel 58, a spring maintaining the engagement between the motor and wheel 68 and thus the finger 74 a rod 52. A marker arm 94 is attached to the upper end of arm 43 and moves with and in direct relationship with the attenuator to drive a linear indicator mechanism. The pins 26, 28 and their flanges 34, 36 are preferably made of materials having a mutually low coefficient of friction, e.g. nylon or polytetrafluoroethylene. The frame 20 of the alternator 18 is provided with lugs 30-33 which slide against plate 10 and prevent linear movement of the attenuator in the direction of the beam. The attenuator 18 has tapered comblike opaque teeth 40a-40d symmetrical about its longitudinal axis whereby the adverse effect of a small degree of angular movement of the alternator is self-compensated. In a double beam absorption spectrophoto-meter a detector system (not shown) supplies an electrical signal to leads 90, 92. This is zero when the sample beam and reference beam are equal. Under other conditions its has a guide value. With a detected ifinite output motor 80 is activated which through rollers 58, 56 moves push-rod 52 and the arms 43-44 to move the attenuator 18 into a new position. The two beams will again have the same intensity and no signal will be fed to motor 80. The variations in intensity may be continuous in a scanning system.
Patent GB-356066-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/245
Filed: 1930-12-22
Abstract: 356,066. Transformers ; reactors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Vienneau, J. J. ; 253, Dawes Avenue, Pittsfield, Massachusetts, U.S.A.) Dec. 22, 1930, No. 38546. Convention date, Dec. 23, 1929. [Class 38 (ii).] In a method of producing L-shaped laminations for transformer or reactor cores, the laminations are so formed that the grain produced by the rolling process to which the material is subjected in manufacture extends longitudinally in both limbs of the L - member. The method consists in severing from strips of material 10, 11 in which the grain runs longitudinally, sections 14, 15 along lines forming complementary angles with the side edges, assembling sections from different strips with their side edges at right-angles as shown in Fig. 4, welding along the severed edges 17, and cutting along the dotted lines 18 to produce a number of L-shaped laminations.
Patent GB-906059-A (GB)
Title: Magnetic cores
IPC: C04B35/26
Filed: 1958-12-02
Abstract: 906,059. Magnetic compositions. RADIO CORPORATION OF AMERICA. Dec. 2, 1958 [Dec. 31, 1957], No. 38906/58. Drawings to Specification. Class 38 (2). A magnetic material suitable for memory cores or microwave resonance devices comprises a mixed ferrospinel within the four component system Li 2 O-Mn 2 -Al 2 O 3 -Fe 2 O 3  and has a composition given by Li x  Fe (2+x)  (1-y-z) Mn (1+2x)+(2+x)y  Al (2+x)z  O 4  where x = 0.002 to 0.50 y = 0.005 to 0.20 z = 0.00 to 0.50 The metallic oxides or oxide yielding compounds (which may be obtained by precipitation) are mixed, wet milled for one hour, dried, calcined between 800 C. and 1050 C. for more than 15 minutes, remilled with the addition of an organic binder such as paraffin or a resin and a lubricant such as stearic acid. The material is pressed into cores, heated slowly to burn off the binder and lubricant and sintered for 15 minutes to 10 hours between 900 C. and 1300 C. to obtain maximum density. The bodies formed are cooled at a rate less than 5 C. per minute. When the parameter x is near 0.5 an oxidizing atmosphere is required and following sintering these materials are annealed in oxygen for 10 to 100 hours at 900  C. -1050 C. When x is less than 0.5 sintering takes place either in a reducing atmosphere containing N 2  or CO, or in air and is then followed by an annealing step in a reducing atmosphere.
Patent GB-1014534-A (GB)
Title: Pigmented varnishes and lacquers based on chlorinated polyethylene
IPC: C09D123/28
Filed: 1962-10-16
Abstract: A pigmented composition finding application in paints and lacquers is prepared by mixing organic or mineral pigments with chlorinated polyethylene and one or more of polychlorobiphenyl, polychlorotriphenyl or polychloroparaffin, and optionally adding stabilizers, thinners or fillers, processing the mixture on a two-cylinder calender heated to 100 DEG  C., cooling and comminuting the sheet obtained, and optionally adding a solvent, followed if desired by adding a non-ionic emulsifier and water while stirring. The chlorinated polyethylene may have a chlorine content of 60-66% by weight.  In Example 1, chlorinated polyethylene is mixed with polychlorodiphenyl (chlorine content 54%), polychlorotriphenyl (chlorine content 65%), chrome green and titanium dioxide, and the mixture is conveyed several times over cylinder-type calenders heated to 100 DEG  C., cooled, ground and dissolved in a solvent.  In Example (2), chlorinated polyethylene (chlorine content 66%) is mixed with polychloroparaffin (chlorine content 50%), barytes, titanium dioxide, and dibasic lead phosphite.  In Example (3), the composition includes epoxidized soyabean oil In Example (4), the composition of Example (1) is formed into a paste with toluene, and a nonionic emulsifier and water added with stirring.
Patent GB-1085532-A (GB)
Title: Improvements in or relating to centrifugal clutch control means
IPC: F16D43/28
Filed: 1964-09-29
Abstract: 1,085,532. Axial-flow fans and centrifugal pumps; cooling cylinders. TWIN DISC CLUTCH CO. Sept 29 1964 [Nov.6, 1963], No.39583/64. Headings F1B and F1C. Also in Division F2] A centrifugally loaded friction clutch is additionally loaded for slip-control by pneumatic, hydraulic or electric means the energization of which is regulated by means associated with the clutch driven device such as a fan, propeller, torque converter impeller, or, as shown, a centrifugal pump. As shown, driven centrifugally expanded clutch shoes 14 pivoted on a hub 16 fixed to an output shaft 17 are frictionally engageable with a driving drum 12 secured to a motor shaft 11. The shaft 17 drives a centrifugal pump 25 increasing the pressure of a water distribution system, in a building, above that of a city main. Clutch initiation is by springs 21 reacting on the hub 16 and acting on the shoes 14 through pistons 22 in radial hub cylinders 61. The pump draws from a city main connected supply line 28 which is also connected through a line 29 with the interior of a closed clutch housing 30. The water may circulate through the drum 12 through apertures 31 therein. The pump discharges to a distribution system pipe 33. A control valve 35 comprises a spool which is downwardly moved by a spring 44 to admit line 33 pressure through a line 53, the valve 35, and ducts 58, 60 to the cylinders 61 for additional clutch loading, and is upwardly moved against the spring by pressure in the line 53 acting against the spool bottom land and a diaphragm 42, when pressure in the distribution system exceeds a predetermined level, to relieve line 33 and hence cylinder 61 pressure to the housing 30 to remove the additional loading and allow the clutch to slip. In Figs. 4, 5 (not shown) the shoe clutch is replaced by a plate clutch comprising a driving plate (73) gripped between axially fixed and movable driven plates (77), (81), the axially movable driven plate being acted on by centrifugal balls (86) and by oil or water additional loading. Clutch initiation is by fluid-pressure loading from a separate source. In Fig. 6 (not shown), a clutch interposed between a vehicle engine (100) and a radiator cooling fan (102) comprises iron vanes radially slidable in a bronze fan-connected hub (105) and centrifugally frictionally engageable with an iron engine-connected cup (110). Additional clutch loading is by outward attraction of the vanes by a stationary electromagnet (120) energized by a battery (B) through a variable resistor (132) so controlled by a bi-metal (T) subject to water temperature that increased water temperature reduces the resistance to increase electromagnetic clutch loading and increase cooling fan speed. A small starting current is always supplied through the resistor (132). The fan may, alternatively, be that of a home furnace blower, the bi-metal being actuated by air temperature. Reference has been directed by the Comptroller to Specification 978.627.
Patent GB-805410-A (GB)
Title: Improvements in or relating to thermally-actuated electric switches
IPC: H01H37/52
Filed: 1956-12-31
Abstract: 805,410. Thermal switches; cam-operated switches. BRYANT ELECTRIC CO. Dec. 31, 1956 [Jan. 3, 1956], No. 39619/56. Class 38 (5). The switch comprises a bimetal strip fixed at one end and having its other end co-operating with a fixed contact, spring means mechanically connected with the bimetal and manual means movable from an " off " position to move the spring means a variable amount and to close the contacts, the bimetal being heated by the current through the circuit thus completed. In one form, Figs. 2, 3, the bimetal 54 is mounted on a terminal 56 and carries a contact 58 co-operating with a contact 72 on a composite bimetal strip 66 mounted on a terminal 64. The bimetal 54 is connected by a strip 62 to an ambient temperature compensating bimetal 60 mounted on a lever 76 pivoted at 74 and biased clockwise (Fig. 2) by a spring 80. The lever 76 has an adjusting screw 95 co-operating with a manually-adjustable cam 26 having a projection 52 which in the off " position shown, separates spring blades 14, 16, which are carried by a terminal 10, from terminals 4, 6. In the " off position, the lever 76 engages a lateral projection on the strip 62 to hold contacts 58, 72 open. As the cam is rotated, contacts 4, 6, 14, 16 close, and the lever 76 and bimetal 60 move upwards, Fig. 2, to close contacts 58, 72. The bimetal 66 has two parts 68, 70 which bend down and up, respectively, when heated, and which are in series with the load which is connected between terminals 10 and 64. Thus, as bimetal 66 is heated it tends to increase the contact pressure until the bimetal 54 overcomes the pressure imparted to it via bimetal 60 by the cam 26, and opens the contacts. The bimetals then cool down and the contacts reclose, and the switch cycles on and off. The line terminals are 4, 56, and terminal 6 is connected to the neutral via a pilot lamp. In a modification, Fig. 4, the movements of the bimetals 541, 601 and the strip 62<SP>1</SP> are controlled by a snap-acting spring 222, the contact 58<SP>1</SP> on the bimetal co-operating with a fixed contact 72<SP>1</SP>. The springs 14<SP>1</SP>, 16<SP>1</SP> are carried respectively by terminals 4<SP>1</SP>, 6<SP>1</SP> and co-operate with terminal 101, the springs having projections 212, cooperating with the face of cam 26<SP>1</SP> which has recesses 214 in the " off position. The edge of the cam engages an arm 230 secured to a member 228 carrying the bimetal 60<SP>1</SP>. The bimetal 54<SP>1</SP> is heated by the current through it and by a coil 224.
Patent GB-1463386-A (GB)
Title: Copolymer coating and developer compositions and method of preparation
IPC: G03G9/13
Filed: 1974-09-11
Abstract: 1463386 Solvent media for dispersion polymerization PITNEY-BOWES Inc 11 Sept 1974 [12 Sept 1973] 39629/74 Heading C3P [Also in Division G2] A copolymer of (a) 25-95% by weight of a C 1-4  alkyl (meth)acrylate or a vinyl ester of a C 2-4  alkanoic acid, and (b) an ethylenic compound having an aliphatic chain of 6-20 carbon atoms is prepared by dispersion polymerization in a liquid petroleum fraction substantially free of aromatic components and which has a Kauributanol number less than 30, a dielectric constant less than 3À5, a resistivity of at least 10<SP>9</SP> ohm cms. and an evaporation rate at least as fast as kerosene but slower than n-hexane. Preferred monomers (b) are octyl, lauryl and stearyl methacrylate. The dispersion can be used as a coating composition or as a developer for electrophotographic processes (see Division G2).
Patent GB-1168528-A (GB)
Title: Process for the Hydrogen Treatment of Heavy Hydrocarbons
IPC: C10G47/00
Filed: 1967-08-30
Abstract: 1,168,528. Hydrogenating hydrocarbons. GULF RESEARCH & DEVELOPMENT CO. 30 Aug., 1967 [13 Sept., 1966], No. 39652/67. Heading C5E. A process for the hydrogen treatment of asphaltic-containing heavy hydrocarbons boiling above 482 C. comprises separating the hydrocarbons into an asphaltene fraction and a maltene fraction, separately subjecting the asphaltene fraction to hydrogen treatment under comparatively mild conditions including a temperature from 316 to 454 C., a pressure from 35 to 210 kilograms per square centimetre gauge, a liquid hourly space velocity from 0.1 to 5À0 volumes of asphaltene fraction per hour per volume of catalyst and a hydrogen feed rate from 35À6 to 356 SCM/100 litres of asphaltene fraction in the presence of a catalyst comprising a hydrogenating component composited with a carrier thereby producing a hydrogen treated asphaltene fraction boiling both above and below 538 C., separating the hydrogen treated asphaltene fraction into at least one fraction boiling below 538 C. and a fraction boiling 538 C., recovering then at least one fraction boiling below 538 C. from the hydrogen treated asphaltene fraction, separately subjecting the maltene fraction to hydrogen treatment at a temperature in the range from 399 to 482 C. and at least 14 C. higher than the temperature employed in the treatment of the asphaltene fraction, a pressure from 35 to 288 kilograms per square centimetre gauge, a liquid hourly space velocity from 0À2 to 10 volumes of maltene fraction per hour per volume of catalyst and a hydrogen feed rate from 35À6 to 356 SCM/100 litres of maltene fraction in the presence of a catalyst comprising a hydrogenating component composited with a carrier thereby producing a hydrogen treated maltene fraction boiling both above and below 538 C., separating the hydrogen treated maltene fraction into at least one fraction boiling below 538 C. and a fraction boiling 538 C. and recovering then at least one fraction boiling below 538 C. from the hydrogen treated maltene fraction. The feedstock may be a vacuum residue from crude petroleum or shale oil, a naturally-occurring heavy oil such as tar oil or pitch, or de-ashed coal. The asphaltenes and maltenes may be separated by solvent extraction with pentane. The asphaltene fraction may be diluted with a lower-boiling hydrocarbon fraction before treatment. Suitable catalysts include combinations of nickel, cobalt and molybdenum, and nickel and tungsten supported on carriers such as silica-alumina, and silica-magnesia. One or both of the fractions boiling above 538 C. may be recycled to the initial separation step. Alternatively, they may be passed to a coking operation. The lower boiling fractions may be fractionated so as to produce materials boiling in the gasoline, naphtha, furnace oil and heavy gas oil or vacuum gas oil ranges. These fractions may then be further treated by means such as reforming, desulphurization, catalytically cracking or hydrocracking.
Patent GB-1482805-A (GB)
Title: Resins
IPC: C08G18/81
Filed: 1974-09-11
Abstract: 1482805 Thixotropic resin compositions VIANOVA KUNSTHARZ AG 11 Sept 1974 [19 Sept 1973] 39675/74 Addition to 1447400 Headings C3R and C3P A process for the preparation of a thixotropic composition comprises reacting a polymer containing hydroxyl and/or carboxyl groups with the product obtained by reacting a polyisocyanate with an unsaturated monomer which possesses a reactive hydrogen atom and the grouping the reaction being carried out in the presence of from 0À01-0À8% wt. (based on polymer solids) of boric acid, preferably as a solution in dimethyl formamide. The polyisocyanate may be an aromatic, cycloaliphatic or aliphatic polyisocyanate, e.g. 2,4 and/or 2,6 tolylenediisocyanate, isophorone diisocyanate or trishexamethylene triisocyanate. The unsaturated monomer may be an hydroxyalkyl ester of acrylic or methacrylic acid, monobutyl maleate, methacrylic acid, acrylamide or methacrylamide. The polymer may be an unsaturated polyester, an oil-modified polyester, an alkyd melamine resin, a silicone modified polyester resin, an acrylic resin or an epoxy resin. The reaction of the polymer and the isocyanate reaction product may be carried out at an elevated temperature in the absence of water or an isocyanate reactive solvent. The resulting thixotropic resin solutions can be diluted with polar solvents or after neutralization with a base, e.g. a tertiary amine, with water. In the examples thixotropic compositions are prepared by reacting an isocyanate reaction product which is either the reaction product of tolylene diisocyanate and any one of the following (A) hydroxyethylmethacrylate, (B) hydroxylpropylacrylate (C) tripropyleneglycolmonomethacrylate, (D) monobutylmaleate or (E) methacrylamide; or the reaction product of either trishexamethylenetriisocyanate or isophorone diisocyanate with methacrylic acid; with a polymer which is either (1) an unsaturated polyester prepared from propylene glycol, maleic anhydride, adipic acid and isophthalic acid; or (2) a dehydrated castor oil fatty acid alkyd; or (3) an acrylic resin prepared from hydroxyethylmethacrylate, styrene, methylmethacrylate, isobutylmethacrylate and methacrylic acid; or (4) an alkyd resin based on isophthalic acid and drying fatty acids; or (5) an unsaturated polyester prepared from propylene glycol, diethylene glycol, phthalic anhydride and fumaric acid; or (6) a siliconemodified alkyd resin based on drying vegetable oils; in the presence of organic solvents and a solution of boric acid in dimethylformamide. The resin solutions obtained are either diluted with n-butanol or are diluted with isopropanol and ethylene glycolmonobutyl ether then neutralized with triethylamine and further diluted with water. A paint is prepared from the thixotropic resin solution obtained from polymer (2) and isocyanate reaction product (A) above in xylene, a butylated melamine resin, titanium dioxide, phthalocyanine blue, and organic solvents.
Patent GB-1151435-A (GB)
Title: Improvements in or relating to Electromechanical Transducers
Inventor: MCLACHLAN DONALD FULTON ALEXAN
IPC: G01L1/22
Filed: 1966-09-06
Abstract: 1,151,435. Strain gauges. G.V. PLANER Ltd. Dec.5, 1967 [Sept.6, 1966], No.39714/66. Heading G1N. [Also in Division H1] A resistance strain gauge comprises a deformable support carrying a thin film resistor composed of at least one ingredient from each of the following groups: a) chromium, chromium oxide, manganese, manganese oxide b) silicon, silicon oxide. Preferably the atomic ratio of the constituent elements is chromium and/or manganese 1, silicon 0À4 to 7, oxygen 0 to 5, various examples being given together with their resistance characteristics. The support may consist of glass, vitreous silica, ceramic or metal coated with insulating material, the thin film resistor being applied by vacuum or "flash" evaporation. The resistor may be of meandering form, and terminal areas may be provided by vacuum deposition of chromium and gold. The gauge may be used in pressure and displacement transducers, proximity gauges and accelerometers. Reference has been directed by the Comptroller to Specification 1,069,435.
Patent GB-1445136-A (GB)
Title: Board game apparatus
IPC: A63F3/04
Filed: 1973-08-23
Abstract: 1445136 Board game K JACKEL 23 Aug 1973 [23 Aug 1972] 39908/73 Heading A6H Game apparatus comprises a board having tracks representing main and side roads, the main roads having a plurality of traffic lanes, the tracks having places to receive tokens advanced by random means and at least one slide 28 below the board which can be moved to expose different signs through cut-outs 25 in the :board. The board has hinges 5. It may be marked with buildings and petrol stations designated by numbers and further single lane roads may be added. Tracks may be coloured and have traffic signs along them or at their sides. Numbers may also be printed on the tracks. Movement of each slide 28 changes the signs or signal colours displayed and eadh slide may have means to retain it in a set position. The apparatus also includes model motor cars (three per player), two or three dice, one of which has three sides with green, and three with red dots, a set of traffic cards including questions, toy money, a list of answers and a list of traffic signs.
Patent GB-1526079-A (GB)
Title: Apparatus and method for standardising a pipeline pig detector
IPC: F16L55/48
Filed: 1975-10-02
Abstract: 1526079 Measuring fluid-flow F H MALONEY CO 2 Oct 1975 [3 Oct 1974] 40304/75 Heading G1R [Also in Division H1] A pig detecting apparatus of the type described in U.S.A. Specification 3145274 having a trigger 16 in the path of a pig 40, the trigger being raised by the pig to activate signalling means, e.g. a microswitch 32, includes an adjustment facility in the coupling between the trigger and signalling means to enable setting of the precise point of operation of the latter. As described, the trigger urges a ball 28 towards a switch actuator 31 and the distance the ball has to travel to contact it is adjustable by a collar 70 engaging right and left handed threads 66, 68. Detectors may be pre-set in a jig 47, the detector mounting flange being bolted to a plate 52 when a base-plate 48 urges the trigger upwards to the same extent it would be moved by a pig. The collar 70 is then rotated until the micro-switch is just activated. Different thicknesses of plates 52 may be provided. The invention may be used in connection with meter provers as described in U.S.A. Specification 3738153.
Patent GB-1321092-A (GB)
Title: Uranium alloy and a method of preparing it
IPC: G21C3/60
Filed: 1970-08-21
Abstract: 1321092 Uranium based alloys COMMISSARIAT A L'ENERGIE ATOMIQUE 21 Aug 1970 [2 Sept 1969] 40320/70 Headings C7A and C7D [Also in Divisions B3 and G6] An alloy consists in per cent by weight of: one metal from: and optionally the remainder being U and impurities. Preparation may be by melting the constituents except the carbon by induction under a pressure of 10<SP>-4</SP> - 10<SP>-5</SP> torr. The carbon may be introduced by means of a carbide of one of the metal constituents, as CO 2  or by melting in a porous lined carbon crucible at 1350-1500C. for a time sufficient to yield the desired carbon content, at 10<SP>-4</SP> torr, and then pouring at below 10<SP>-3</SP> torr into refractory lined pre-heated moulds. Cooling at 15-50C. to below 750C. is preferred, either in the treatment furnace or after reheating in a salt bath or by induction.