baber/WOPTO huggingface dataset:
Patent GB-1300355-A (GB)
Title: Method of preparing inoculation sour for producing kefir
Inventor: KOROLEVA NATALIA SERGEEVNA
IPC: A23C9/127
Filed: 1971-05-14
Abstract: 1300355 Kefir VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT MOLOCHNOI PROMYSHLENNOSTI VNIMI 14 May 1971 [9 Nov 1970] 15065/71 Heading A2B Defatted milk is pasteurised, cooled and inoculated with Kefir grains in a weight ratio of 1 part of yeast to 30-50 parts of milk, the mixture being stirred for 1-10 minutes every six hours (starting from the inoculation), and separating the grain from the finished fermenting sour.
Patent GB-545152-A (GB)
Title: Improvements in and relating to apparatus for testing prime movers
IPC: G01L5/13
Filed: 1940-10-11
Abstract: 545,152. Dynamometers. ROBERTS, W. H. March 19, 1941, No. 3747. [Class 106 (ii)] Relates to apparatus for testing prime movers of the type in which the engine-mounting is supported by cables or tension members more or less radial to the axis of rotation of the prime mover and consists in so arranging the cables of the engine mounting that the effective length of the cable between the anchorage and the mounting is variable to permit of rotation of the mounting whereby torque may be measured. The engine mounting comprises a drum-like member 10 supporting with its axis horizontal by cables at each end. Each set comprises three sets of cables 11, 12, arranged symmetrically each pair being attached to the drum at 13. The free ends of the cables are connected to opposite ends 14, 15 of a lever 16 centrally pivoted on a link 161 itself pivoted to a supporting structure about an axis 162 at right angles to the lever pivot on link 161. The torque is measured by a lever 20 extending from a shaft 21 at the rear of the drum; weights 22 being hung from the end of the shaft. The engine with its air screw is introduced from the end of the drum away from shaft 21 the drum receiving the engine bearers 19. Instead of weights, the end of the arm 20 may be slotted to engage a pin on a sliding shaft fitted at the ends with pistons moving in cylinders which communicate with pressure gauges. In a modification, the end of the drum 10 away from the engine has a rigid extension connected by a universal joint to a sleeve secured to a housing having two laterally extending arms connected by links to opposed bell-cranks which are connected to a hydraulic cylinder and piston respectively so that rocking of the sleeve produces a pressure in the cylinder which is a measure of the torque. The housing also has a spherically mounted thrust bearing which transmits longitudinal thrust to a hydraulic cylinder fitted with a pressure gauge.
Patent GB-1498506-A (GB)
Title: Flexible cellular polyurethane foam compositions having increased flame retardance
IPC: C08G18/09
Filed: 1975-04-14
Abstract: 1498506 Polyurethane foam EURANE EUROPEENNE DU POLYURETHANE SA 14 April 1975 15257/75 Addition to 1390702 Heading C3R Flexible polyurethane foam is prepared by reacting in the presence of water an organic compound having at least two active hydrogen atoms, e.g. a glycerol- or trimethylol-based polyoxy propylene polyol, with a polyisocyanate having an isocyanate index of 130 to 200 in the presence of an isocyanate trimerization catalyst which consists of triethylene diamine, an alkylene oxide adduct or alkylene oxide-water adduct of triethylene diamine, triethylene diamine diformate, or an N-benzyl-trialkyl ammonium alkoxide. The polyisocyanate may be toluene diisocyanate or polymethylene polyphenylisocyanate. A conventional urethane forming catalyst may additionally be used and optionally a silicone surfactant. By virture of the high isocyanate index which can be employed, the need for other agents in order to impart flameretardancy to the resulting products is eliminnated. Examples are given.
Patent GB-734487-A (GB)
Title: Improvements in and relating to brushes for electrical machines
IPC: H02K13/00
Filed: 1950-06-19
Abstract: 734,487. Brushes for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. June 19, 1950 [June 29, 1949], No. 15273/50. Class 35. In order to minimize brush wear of a dynamoelectric machine operating in an ambient having low humidity a vapour (water, alcohols, ethers, ketones, hydrocarbons or other vaporizable substance or subliming solids, e.g. camphor, ice, &c.) is introduced in an enclosed space around the commutator or slip-ring surface. Fig. 1 shows a spherical vapour generator 12 which supplies water vapour by means of a tube 18 to a close space around the commutator surface shielded by a housing 11 forming a substantially air-tight commutator chamber. Thus the. contacting parts of the brushes 11 work in a region of high humidity. The machine cooling air enters at an inlet 8 and flows axially inwardly over the said housing 11. Fig. 4 shows the construction and arrangement of the housing 11 which comprises sheet plates 33, 34 and 24, 25, (Fig. 2 not shown), arranged between the brush holders. At the ends of the plates 33, 34, 24, 25 there are two rings 43, 44 of insulating material cemented or fastened to the brush holders. Vapour is produced in the humidifier 12 by resistances 14 heated by current supplied through connections 15. A tube 19 furnishes warm air to the humidifier 12 by means of air heater 23. Fig. 5 shows another arrangement in which a cylindrical vapour generator 48 provides a gaseous medium consisting of vapour alone. Water or other vaporizable substance 49 supplies vapour inside a shield 47 via a porous plug 50 and tube 51. The location of the vapour generator is not necessarily outside the machine, and it can be arranged, to put the humidifier somewhere inside the machine. In the case of an aircraft the main engine exhaust may be utilized to supply the required vapour. To remove heat from the housing 11 it may be desirable to provide fins on the housing 11 or on the brush holders.
Patent GB-321906-A (GB)
Title: Improvements in or relating to guiding rollers for the cutter spindles of wood moulding or shaping machines
IPC: B23Q35/10
Filed: 1929-05-16
Abstract: 321,906. Thompson, C. E. May 16, 1929. Cutter heads. - In a method of mounting a guiding roller on a cutter spindle with provision against the ingress of foreign matter to the bearing, the guiding roller 5 is mounted on an antifriction bearing on a cutter spindle 1 and the inner race 9 of the bearing is gripped between the collars 2 and 12 and felt or like material washers 17 are arranged to bear against the outer race 6.
Patent GB-711430-A (GB)
Title: Improvements in damping devices
IPC: F16F9/30
Filed: 1951-06-27
Abstract: 711,430. Shock-absorbers. SINISTERRA, F. June 27,1951 [July 5, 1950], No. 15292/51 Class 108(3) A shock-absorber comprises relativelymoving surfaces between which are disposed thin layers of plastic material which is keyed to the surfaces, is under pressure, and operates with a shearing action and without any change in volume. In the construction shown in Fig. 1, plastic material is disposed between discs 1, 2, rigid with a rotor 5 operable by an arm 20, and an outer casing 6, 7 having an inwardly directed flange 10. Holes 13 and a recess 14 help to key the plastic material to the respective working surfaces. The pressure of the material may be varied by adjustment of a screw 23 and its associated spring-loaded piston 25. In the construction shown in Fig. 9, the rotor 54 is cylindrical and has a series of materialkeying recesses on its peripheral surface. Similar recesses may also be provided on the interior cylindrical surface of the housing 28. Alternatively the recesses may be disposed in the housing surface only. The recesses may be assymetrically shaped, e.g. in the manner of a saw-tooth in order to provide greater damping action in one direction of rotation. In order to increase the area of the working surfaces, an upstanding flange 60 rigid with the housing 28, projects into an annular recess 55 in the rotor. The flange and rotor are formed with circumferentially-spaced radial bores 57 in order to assist in keying the material to the casing and rotor:' The rotor body 54 is of light alloy, e.g. that sold under the Registered Trade Mark, "Alpax," cast on to a steel spindle 5. The housing is of cast iron and the differential thermal expansion of the alloy and the cast iron tends to compensate for viscosity changes of the plastic material. Alternatively the housing may be of a material having a greater coefficient of expansion than that of the rotor. The screw 23 and spring 24 may be replaced by a conduit connection to a source of oil pressure, by varying which, a plurality of the dampers may be remotely controlled. In the construction shown in Fig. 14, a piston 85 is slidable within a cylinder 63 and has an annular recess 86 and grooves 88. Plastic material fills the recess 86, grooves 88 and an annular recess 87 in the cylinder wall. The recess 86 is connected with the interior of the piston rod, and the pressure of the material may be varied by adjustment of a screw 78. The material is retained between the piston and cylinder by the provision of bronze rings 68, 69. One or both of the recesses 86, 87 may be dispensed with, and the grooves 88 may also be provided in the cylinder wall (or on the cylinder wall only). The recesses may be assymetrical, e.g. of saw-tooth crosssection, in order to provide a different degree of damping in respective directions of movement. The plastic material may be a silicone such as bouncing putty.
Patent GB-317893-A (GB)
Title: Improved roller on pleating machines
IPC: D06J1/06
Filed: 1928-05-25
Abstract: 317,893. Gilbert, J. May 25, 1928. Pleating.-Pleating rollers are made up of a series of narrow roller sections b each of which is independently mounted on the shaft a so as to be displaceable at right-angles to the shaft. This enables a fabric with seams to be pressed equally throughout. The roller sections may be resiliently mounted, as shown in Fig. 2, by means of spiral springs d with stud seatings b<1>, c<1>. The end sections of the roller may be rigid. Leaf or other springs may replace the spiral springs. Springs may be omitted and replaced by a filling of sponge rubber, which may be attached tu vulcanized hard rubber linings.
Patent GB-119128-A (GB)
Title: Torpedo and Mine Guard for Ships.
Inventor: HASLAM JOSEPH CHARLES
IPC: B63G9/00
Filed: 1917-10-23
Abstract: 119,128. Haslam, J. C. Oct. 23, 1917. Torpedo screens.-A torpedo and mine guard for ships is formed of a number of pontoons each carried by a sliding frame movable along the ship's sides and capable of being lowered into the water. Each pontoon 21 is carried by a rectangular frame 6 fitted with rollers 7, 8 to run between rails 3, 4. The pontoon and frame are normally housed within a casing 31, but can be run out when required for use by a pinion 34 engaging a rack 36 and driven by an electric motor 32. The pontoon when in use is suspended from the end of a crane arm 11 by a rope 27 passing to a drum operated by an electric motor. The crane arm is raised and lowered by a rope 14 passing to a drum 17 operated by an electric motor 18. A towing rope is fixed to one end of the pontoon to assist in placing it in the path of the torpedo. All the electric motors are controlled from a single look-out position on the ship. Current is conveyed to the motors by contact arms 39 sliding on conductors 38.
Patent GB-747100-A (GB)
Title: Improvements in or relating to apparatus for television transmission
Filed: 1951-01-23
Abstract: 747,100. Television. TUSHINSKY, I. P., and TUSHINSKY, J. S. Jan. 23, 1951, No. 15411/53. Divided out of 747,091, [Group XX]. Class 40 (3). A single real image of a scene is formed and stereoscopically related images of it are televised from spaced viewpoints. In the apparatus shown an objective 15 forms a real image within the housing 16. Television cameras 23, 23<SP>1</SP> with objectives 23a, 23a<SP>1</SP> view this real image through reflecting systems 21, 22, 21<SP>1</SP>, 221 and additional lenses 18, 18<SP>1</SP> in front of which rotates a shutter 29 driven by a motor 24. The shutter may be semi-circular or may have a greater angle of blade, e.g. three-quarters circular, to provide dark spaces between transmissions from the two cameras.
Patent GB-407221-A (GB)
Title: Resilient chairs
IPC: A47C3/023
Filed: 1933-05-30
Abstract: 407,221. Chairs. LORENZ, A., 47, Tel towerstrasse, Berlin. May 30, 1933, No. 15567. [Class 52 (ii).] Chairs are made with a lower frame consisting of resilient rod or tube, and an upper frame of cheaper material such as wood, cane, or aluminium, which may be non-resilient, the two frames being connected by joining members. The seat may be secured to the joining members or to one of the frames. The lower frame a, Figs. 1 and 3, may for instance be connected to the upper frame b by socketted sleeves c, the seat being secured to the frame a, or to the member c. The seat d, Fig. 7, may be fastened to a joining member c, the tubes a and b forming the lower and upper frames respectively being secured to lugs on the member c. Figs. 9 and 11 show alternative forms of joining member.
Patent GB-1510031-A (GB)
Title: Apparatus for reducing intensity of light
IPC: F21V9/40
Filed: 1976-04-15
Abstract: 1510031 Lamps R E GOTTSCHALK 15 April 1976 [2 May 1975] 15616/76 Heading F4R A lamp having means to vary the intensity of the emitted light without affecting the colour quality comprises a housing 14 having a generally rectangular front opening, a tubular light source 32 extending across the opening, a semicylindrical reflector 50 disposed in front of the light source to prevent any light from passing directly out of the housing, and a plurality of pivotally mounted cylindrical members 64 disposed in the housing and each having first and second surface areas of different reflectivity. The members 64 may be made of reflective metal having a knurled light-diffusing surface and provided with a non-reflective coating (86) of black paint extending half-way around the circumference, each member being connected to a respective sprocket 78 meshed with a chain 88 passing around a tensioning sprocket 90 and a control sprocket 92 which can be turned by a knob 110 through interintermediate bevel gears (106, 108). The amount of light emitted by the lamp can therefore be varied between a maximum value, when all the reflective areas of the members 64 are directed towards the source, and a minimum valu when all the black surfaces are illuminated. The reflector 50 comprises a ceramic body 52 having a stainless steel liner 54.
Patent GB-108598-A (GB)
Title: Improvements in and relating to Wind Screens for the Pilot, Observer, or Gunner upon Aircraft.
IPC: B64C1/14
Filed: 1916-11-01
Abstract: 108,598. Sopwith Aviation Co., and Sopwith, T. Nov. 1, 1916. Wind and like screens.-In order to prevent injury to the occupant of an aeroplane or the like by violent contact with the wind or similar protecting screen such as is provided for use in sighting a gun, the glass screen J, Fig. 3, is surrounded by a frame A, preferably of D-shape, having a padded cover or cushion L, Fig. 2. The frame is provided with horizontal and vertical cross-bars C, C<1>, C<2> having lugs E, E', F, F' by which the frame may be secured to the end of a gun G.
Patent GB-509236-A (GB)
Title: Improvements in and relating to apparatus for converting direct current into alternating current
IPC: H02M1/22
Filed: 1938-05-21
Abstract: 509,236. Converting. TECHNICAL INVENTIONS, Ltd., and JONES, R. J. ELSOME-. May 21, 1938, No. 15658/39. Divided out of Complete Specification of 508,370. [Class 38 (ii)] An arrangement for obtaining A.C. from a D.C, source 4 comprises a transformer 1, the primary winding of which is energized through a motor-driven interrupter 6 and has shunted across its terminals a reversible electrolytic condenser 12 which may comprise an aluminium electrode having a double electrolytic film or two unit condensers with their polarities opposed. The interrupter may also serve for interrupting the field winding 10 of the driving motor which is connected in parallel with the primary of the transformer. A second condenser 11 which may also be of the electrolytic type is connected across the interrupter contacts. Specifications 470,429 and 508,370 are referred to.
Patent GB-399604-A (GB)
Title: Improvements relating to water heating apparatus
IPC: F24H1/20
Filed: 1932-06-04
Abstract: 399,604. Internally-fired hot-water boilers. RADIATION, Ltd., Thimble Mill Lane, Aston, Birmingham, and POOLE, R., Grappenhall Works, Thelwall Lane, Grappenhall, Warrington, Lancashire. June 4, 1932, No. 15765. [Class 64 (i).] In a water-heater from which hot water is discharged by incoming cold water, the supply pipe n with escape holes s at its upper end is provided with a cap q having apertures r to render the pipe visible. The pipe is surrounded by a tube m perforated at its lower end p to enable cold water to pass from its interior to the storage vessel a. A thermostat o and the lower end of the supply pipe are connected with a fitting f carrying gas burners e. The combustion products traverse an annular passage h in a central conduit d. The escape of vapour is prevented by a plate w provided with a skirt x dipping into the water.
Patent GB-420532-A (GB)
Title: Improvements in and relating to the manufacture of blades for turbines, compressors and the like
IPC: B23P15/02
Filed: 1933-05-31
Abstract: 420,532. Making turbine blades &c. PARSONS & CO., Ltd., C. A., and GARDNER, F. W., Heaton Works, Newcastle-on-Tyne. May 31, 1933, Nos. 15769/33 and 12504/34. [Class 83 (ii) and 83 (iv)] Destructible cores.-Hollow metal articles of non-circular cross-section externally, such as turbo blades, railings, aeroplane struts &c. are made by elongating or otherwise deforming a hollow billet previously filled with a metal core of similar ductility to that of the billet and subsequently removing the core by a corrosive agent not attacking the body of the article. A stainless steel hollow billet A for a turbine blade having a parallel bore in the bladeforming portion 2, as shown, or extending also into the root-forming portion 3, or a bore tapering towards the root, is filled with a core E of mild steel having similar properties as regards ductility to the metal of the billet, but different as regards corrodibility and after elongating the blade portion by rolling, the core is removed by nitric acid. The core may be inserted as a solid plug or in the molten state. In certain cases a brass or copper core may be used. In making strip blading without a root a plain hollow billet is used. Specifications 19962 /10, 7571 /12, [both in Class 83 (iv)], and 398,899 are referred to. According to the first Provisional Specification, the blades may be for compressors, and according to the second Provisional Specification, hollow articles of circular cross-section such as shafts or spindles, or golf club shafts may be similarly made.
Patent GB-970225-A (GB)
Title: Improvements in or relating to stud joints
IPC: B62D7/18
Filed: 1963-04-22
Abstract: 970,225. Stud and socket joints. THOMPSON RAMO WOOLDRIDGE Inc. April 22, 1963 [April 24, 1962], No. 15790/63. Heading E2F. A dual stud joint comprises studs 13, 14 projecting through opposite ends of a housing 21, the stud 13 being mounted for rotational movement about its own axis and also for tilting movement, the stud 14 being mounted in a rubber sleeve 30 for rotational movement about its own axis, and the studs having complementary interfitting surfaces 17, 18 arranged to ride upon one another and thereby load the rubber sleeve axially upon application of side thrust loads to the joint. A flanged bearing sleeve 29 of low friction plastics material such as nylon, polyethylene or the like is disposed between the stud 14 and the rubber sleeve 30. The surfaces 17, 18 comprise a concave bearing socket on one of the studs and a complementary semispherical protuberance on the other, and the segmental spherical head 15 of the stud 13 seats in a cup-shaped bearing liner 22 in the housing.
Patent GB-515271-A (GB)
Title: Circuit arrangements and thermionic valves for amplifying electrical oscillations
IPC: H03F1/36
Filed: 1938-05-27
Abstract: 515,271. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., BLACK, D. H., and ROCHE, A. H. May 27, 1938, No. 15935. [Class 40 (v)] The negative feedback voltage of an amplifier is derived from an auxiliary positive electrode arranged between the control electrode and the output anode of the valve. The feedback voltage may be derived solely from an impedance R14, Fig. 2, in the circuit of the auxiliary electrode or partly therefrom and partly from voltage produced by the output current in impedance R13. The impedance in the circuit of the feedback electrode is preferably proportioned to the impedance in the output anode circuits in the ratio of the currents carried by the two electrodes, or so that the harmonics in the feedback circuit are greater than those developed in the anode circuit. The impedance in the circuit of the feedback electrode may be frequency dependant and be such as to reduce the output impedance of the amplifier. The output impedance may be controlled by adjusting the relative proportions of feedback derived from the auxiliary feedback, electrode and from the anode circuit. A threewinding output transformer may be used, Fig. 3 (not shown) the load for the auxiliary electrode being constituted by the third winding. Alternatively a small monitoring output may be obtained from the auxiliary electrode supplying the negative feedback voltage, Fig. 4 (not shown). The amplifier may comprise a push-pull stage in which case the feedback is adjusted to give optimum reduction in the odd order harmonics. The feedback may be applied to the control grid in series with the input voltage, Fig. 1 (not shown) or to the screen grid of the first amplifier stage, Fig. 5 (not shown). Fig. 6 shows an arrangement in which the output valve comprises a cathode, a control grid 3, an accelerating grid 4, a suppressor electrode 5, and a feedback electrode 6, and so arranged and constructed that the ratio of the electron currents flowing to the anode 7 and to the electrode 6 is constant for all working values of control grid voltage. The amplifier may operate over a range of 10 to 60 kc.
Patent GB-259275-A (GB)
Title: Improvements in or relating to testing devices for use in connection with wireless and other electrical apparatus
IPC: G01R31/02
Filed: 1925-06-20
Abstract: 259,275. Gaydon, H. A. June 20, 1925. Couplings.-A portable testing- device for testing for faults in wireless and other apparatus comprises a tubular container a, Fig. 1, containing a dry battery g or equivalent source of electromotive force and having a spring or buffer controlled point contact b and terminals d to. which a second point contact e is connected by means of a flexible lead f. The contact b is controlled by a spring h so that the circuit is normally broken and is completed on pressing in the point b. The spring h serves also to keep the battery g in position against the contact of the lamp c, and may be replaced by rubber &c. Two springs may be employed, one for controlling the plunger contact b and the other at the other end of the battery for keeping this in position.