baber/WOPTO huggingface dataset:
Patent GB-526242-A (GB)
Title: Improvements in unloading valves for reciprocating ram pumps
IPC: F04B49/00
Filed: 1939-03-06
Abstract: 526,242. Regulating delivery of pumps. TOWLER, J. M., and TOWLER, F. H. March 6, 1939, No. 7219. [Class 102 (i)] [Also in Group XXIX] A relief device for a reciprocating ram pump comprises a piston valve which is movable relative to a discharge outlet in the wall of each pump bore to byepass some or all of the liquid in one or more pump bores either progressively as the delivery pressure increases or immediately it attains a predetermined pressure. Fig. 1 shows the device applied to a three-ram pump having discharge valves 25 leading to a common discharge pipe 8. The unloading valve comprises a tubular piston valve 13 having an axial bore 14 discharging at one end into the sump and radial ports 18 leading to two peripheral grooves 15, 16. The control edges of these grooves may be chamfered to give a gradual opening. The discharge pressure acts on a ram 26 connected to the valve and as the pressure rises it moves the valve against the action of an adjustable loading spring 20, first bringing the groove 15 opposite the port 9 to unload the first cylinder, further movement unloads the second cylinder and still further movement brings the tapered end 17 opposite the port 11 and partly unloads the third cylinder. In a modification this tapered end is replaced by a third peripheral groove and the valve member is extended into the control chamber to replace the plunger 26. The endwise movement of the valve is limited by a collar 28 on the plunger 26. The rams may be unloaded in any desired order, either together or one or more at a time. In a modification the movement of the valve is under the control of a loose-ball auxiliary valve opened against the action of a spring by discharge conduit pressure. Specification 392,992 is referred to.
Patent GB-573529-A (GB)
Title: Synthetic rubber-like materials
IPC: C08F236/04
Filed: 1941-06-09
Abstract: A synthetic rubber is produced by polymerizing a mixture of butadiene-1-3 or a methyl or dimethyl derivative thereof and a smaller quantity of an anilide or methyl anilide of acrylic or methacrylic acid; there may be present still smaller quantities of substances known to interpolymerize with butadiene, such as styrene, methyl acrylate, methacrylate or a -chloracrylate, and acrylonitrile. Examples describe the emulsion polymerization of mixtures of butadiene with methacrylic anilide, or, in one case, with methacrylic xylidide, and it is stated that similar products may be made using methacrylic toluidides or acrylic anilide. Other examples describe the properties of the products when compounded with channel black, pine tar, stearic acid, zinc oxide, sulphur, mercaptobenzthiazole and phenyl-b -naphthylamine and vulcanizing.
Patent GB-346537-A (GB)
IPC: H01J5/24
Filed: 1930-03-05
Abstract: 346,537. Electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. March 5, 1930, No. 7253. Convention date, March 23, 1929. [Class 39 (ii).] An incandescent lamp 10 or discharge tube comprises a single electrode - supporting stem 11 having at least two concentric tubular bodies 12, 15 which are provided with flared edges 13,16, located one below the other and adapted to be sealed simultaneously to the bulb. A glass rod 14 supports filaments 17, 18 and connects together the tubes 12, 15.
Patent GB-512628-A (GB)
Title: Improvements in or relating to loading machines for coal and like materials
IPC: B65G65/00
Filed: 1938-03-08
Abstract: 512,628. Endless-belt conveyers; winding- apparatus. BAINBRIDGE, F., BRITTON, W., and WOOD & CO., Ltd., H. March 8, 1938, No. 7261. [Classes 78 (i) and 78 (v)] Coal or similar loose material is moved laterally from a loading machine on to a conveyer by a number of spaced arms or flights which have rapid forward and backward movements with intervening lateral movements. The flights c, Fig. 1, are flat taper plates with a central upstanding part d and are secured by pivot bolts e to a bar f. Pins g connect the bar f to a pair of crank discs h which are mounted on spindles k, Fig. 4, carrying gears l. The gears are coupled by a gear m and one of them is driven from a motor o, Fig. 2, through bevel gears r, a shaft s, gears t, u and pinion v. The gear u is rotatable about a shaft x and is keyed to a bush y which carries the sun pinion z of a train of epicyclic gearing. The three planet wheels 1 of this gearing are mounted on a light spur wheel 3 rotatably mounted on the bush y. The annular spur wheel 2, with which the planet wheels engage, is keyed to the shaft x which carries a haulage drum w. The gear 3 is engaged by a pinion 4 on a shaft 5 having at its lower end a multiple-plate friction clutch 6, the outer plates of which are connected with the frame of the machine. When the clutch is engaged fully, the shaft 5 is held and the planet pinions are prevented from rotating around the gear z, thereby causing the drum w to be driven at a relatively high speed. Lower haulage speeds can be obtained by allowing the clutch to slip to various extents. The pinion v is mounted on a bell crank lever 11 controlled by a lever 15 so that it can be swung out of engagement with the gear l when the machine is being moved to stop the driving of the conveyer. Coal is prevented from entering the machine by a spring-loaded baffle 32, Fig. 1. In a modification the epicyclic gearing is replaced by clutchcontrolled gears for providing relatively high and low speed drives.
Patent GB-164509-A (GB)
Title: A rotary combustion engine
IPC: F01B13/04
Filed: 1920-03-12
Abstract: 164,509. North British Diesel Engine Works, Ltd., and Maclagan, J. C. M. March 12, 1920. Compression engines; driving-gear.-In a rotary internal combustion engine in which both cylinders and piston members revolve intermittently, each acting alternately as abutment for the other, the piston member is free relatively to the motor shaft and cylinder member. The cylinder member has cylinders in pairs A, A<1>, and A<2>, A<3> arranged with their closed ends adjacent and having piston controlled ports E, G. Ports E are connected by passages, E<1>, E<2>, E<3>, E<4>, E<5> to the inlet pipe E<6> and having passages G<1>, G<2>. The partition H is joined to the cylinder member at X, separating the inlet and exhaust passages. Bearings B<3> support the shaft B<2> and hollow chamber B<1> to which is fixed the cylinder member and on which the piston member is mounted at D free to rotate partially in relation to the cylinder member. The heavy piston member carries pistons C, C<1>, C<2>, C<3> and its rotation is limited to one direction by the ratchet gear L. Straight, cylinders may be employed in conjunction with suitable pistons and connecting-rods.
Patent GB-100783-A (GB)
Title: Improvements in Means for Suspending the Work Frames of Embroidering Machines.
IPC: D05C9/14
Filed: 1916-05-26
Abstract: 100,783. Saurer, A., (Firm of). June 28, 1915, [Convention date]. Embroidery machines.-The work-frame 2 is supported at its ends bv slides 3, 3<1> which are connected by straps 17, 14, respectively, to a driven pulley 11 and a counterweight 15, the straps passing over pulleys 18, 12 as shown. An intermediate support 4, or more than one, is connected to an endless beli 7 passing over pulley 8 and a pulley 6, which carries the belts 9, 10 between the pulleys 11, 12.
Patent GB-695320-A (GB)
Title: Improvements in or relating to devices for use in steam draining and trapping
IPC: F16T1/34
Filed: 1951-04-02
Abstract: 695,320. Steam traps. GERDTS, G. F. April 2, 1951 [April 1, 1950; Nov. 13, 1950], No. 7568/51. Class 64 (ii) One or more steam traps, connected to a draining and trapping point (or points) in a steam plant, are connected to a panel for observation and control of the draining system. As shown in Fig. 1, a trap is formed in a unitary structure attachable to panel 30 and comprises a two-way stop valve 11 for regulating the flow of steam from inlet 10. When the valve is on the seat 13, steam flows through strainer 14 into passage x and passes (1) means 17 for indicating the pH acidity condition, (2) illuminated sighting window 18 for observation of dilution of condensate and (3) a condensate separator nozzle 24 where the quantity of condensate is measured by a manometer 22. By raising valve 11 from seat 13 to the position shown, steam passes through by-pass 15 to blow the condensate through non-return valve 28 to drain pipe 27. Steam is entirely cut off when the valve 11 is screwed against seat 12. In the form shown in Fig. 4, a piston valve 35, when in the raised position shown, permits normal flow of steam through the apparatus. When the valve is lowered to a middle position, the flow of steam is entirely cut off. When the valve is completely lowered, the steam, although cut off from the apparatus, can pass from passage 10 to an opening 36, fitted with an adjustable nozzle, which allows water to drain to the remote side of the non-return valve 28 through a small bore pipe 37. A thermostatically-controlled valve 32 with bimetallic stem 33 provides for automatic blow-through discharge of condensate.
Patent GB-1286563-A (GB)
Title: Transporter for manure and similar products
IPC: A01K1/01
Filed: 1970-02-18
Abstract: 1286563 Reciprocating conveyers; piling material; skip hoists SERMAP SA 18 Feb 1970 [19 Feb 1969] 7668/70 Headings B8A B8E and B8H Manure to be piled is conveyed by reciprocating pushers 7 into a carrier 22 which moves up and down an arm 18 verically pivotable at 19. As shown, the pushers 7 move the manure from left to right but pivot to a flat position when a rail 6 on which they are mounted moves from right to left. The rail is reciprocated by a slide 5 engaged by a pin 4 fixed to a motor-driven endless chain 1 and the slide 5 is attached to a bar 9 which, by means of a chain 10 on a drum 11, drives a drum 14 via gearing 12, 13. A cable 16 is secured to the drum 14 and to the carrier 22. As the slide 5 and pushers 7 move from right to left, the carrier 22 is pulled to the top of the arm 18 where it is discharged as it abuts a stop 24. When the slide reverses its travel the carrier 22 returns under its own weight ready for reloading. Stops 26, 27 cause winding of the drum 14 to be delayed until the slide 5 has completed its forward movement and the pushers 7 have completed the loading of the carrier 22.
Patent GB-1078342-A (GB)
Title: Semi-conductor device and manufacture thereof
Inventor: LANGRIDGE ARTHUR
IPC: H01L23/48
Filed: 1965-02-23
Abstract: 1,078,342. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Dec. 21, 1965 [Feb. 23, 1965], No. 7749/65. Heading H1K. A semi-conductor device such. as a silicon controlled rectifier comprises a semi-conductor element 2 mounted on a copper base 1, an insulating member 4 urged towards the element 2 by an annular leaf spring 5, and a lead 3 which passes through the member 4 and carries a first electrical contact urged into engagement with a first electrode of the element by a spring 12 acting between the contact and the member. The second electrode of the element is held in engagement with the base 1, which constitutes a second contact, by the pressure of the spring 5, and contact is made with the third electrode by a lead 11 also passing through the member 4. The member 4 has bores 15 and 16 (not shown) to receive further leads or for cooling purposes. The leaf spring 5 may be replaced by a compression spring encircling the member 4 and bearing at one end against a portion of a metal cap 6 which forms, together with the base 1 and an insulating lid 8, an evacuated housing.
Patent GB-760736-A (GB)
Title: A filter for lubrication oil, benzine and fuel oil for internal combustion engines
IPC: B01D29/15
Filed: 1954-03-18
Abstract: 760,736. Filters. MYRING, A. March 18, 1954, No. 7834/84. Class 46, Oil drawn in at 20 by suction applied at 10 has its rate of flow reduced by perforate baffle plates 33, 34, the upper one resting on a shoulder 40 and both being mounted on a sleeve 39. Water and impurities collect in a sump 8 while the oil passes through holes 47 in the skirt 46 of ar element-engaging bot tom plate 25, the skirl 46 making close con tact with the interior of the casing 2. Oil, air and gas flow inwards through a felt sleeve 22, the air and gas collecting at the upper part of the casing and the oil passing downwards through perforate strengthening discs 31 to holes 14 in an outlet tube 12 integral with the cap 3, egress of air and gas thus being prevented. A gas vent 48 is provided. The tube 12 is closed at the lower end by a rod 15 which serves to secure the cap 3 to the casing 2. The plate 25 is forced against the element 22 by nuts 28, 29. To clean the filter element the bolt 15 is unscrewed, and cover 3, element 22 and plate 25 removed as a unit ; bolt 15 is then replaced. Oil or air under pressure is now admitted to the upper end of pipe 12 and passes radially outwards through the element.
Patent GB-514723-A (GB)
Title: Improvements in or relating to superheterodyne wireless receivers
IPC: H03J7/04
Filed: 1938-03-14
Abstract: 514,723. Automatic 'fine-tuning systems for radio receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 14, 1938, No. 7871. Convention date, March 13, 1937. [Class 40 (v)] The automatic frequency control circuit of a superheterodyne receiver comprises a control valve having its output circuit coupled to the tuned circuit of the local oscillator, oscillations from which are also impressed, together with A.F.C. voltages, on each of the two grids of the control valve. In Fig. 1, the control valve 21, is of the double triode type, the anodes being connected in parallel to the oscillator tank circuit 5, while the control grid 24 is coupled to the junction of a resistance 26 and condenser 27 connected in series with condenser 28 across the tank circuit; control grid 25 is coupled to the earthed end of that network over condenser 30. The two grids are supplied with A.F.C. potentials from the two-circuit discriminator 11, 13, 14, 15, 16 coupled to the I.F. stage. Thus, the valve 21 has a push-pull input and parallel output for radio frequencies. In a modification, Fig. 2 (not shown), the valve 21 has its control grids fed in parallel from the tank circuit, to which the anode circuits are coupled in pushpull ; the discriminator is of the phasevariation type known per se. Specifications 487,687 and 489,094 are referred to. According to the Specification, as open to inspection under Sect. 91. the control valve is of the heptode type, the two grids being separated by a screen-grid, Fig. 3 (Cancelled, not shown). The control voltages are adjusted to compensate for the unequal control effect of the respective control grid. This subjectmatter does not appear in the Specification as accepted.
Patent GB-196593-A (GB)
Title: Improvements in explosives and a process for their manufacture
IPC: C06B35/00
Filed: 1923-03-19
Abstract: 196,593. Etablissements Davey, Bickford, Smith, et Cie. April 19, 1922, [Convention date]. Explosives.-Lead azide for use in primers is insensitized by the addition thereto of between 0.05 and 20 per cent by weight of oils, greases, or paraffins. Reference has been directed by the Comptroller to Specification 185,555.
Patent GB-1443594-A (GB)
Title: Egg handling apparatus
IPC: B65B23/06
Filed: 1974-02-21
Abstract: 1443594 Conveying and packaging eggs SEYMOUR FOOD Inc 21 Feb 1974 [30 April 1973] 7894/74 Headings B8A and B8C Apparatus for packing eggs in an egg carton or flat C includes conveyer means for the eggs, means 102 co-operating with the conveyer means for arranging the eggs in transverse row alignment with the long axes vertical and the pointed ends downward, and means 130-143 for guiding the eggs off the discharge end of the conveyer into the carton or flat C. Eggs are supplied to a wire belt conveyer 66 by a feed conveyer (34, Fig. 1, not shown), excess eggs being deflected on to a return conveyer (36) parallel to the feed conveyer and which feeds the eggs back on to the feed conveyer. The conveyer 66 feeds the eggs to gaps between spaced oscillating paddles 77 at the inlet of a conveyer 75 having transverse rows of pockets. When sensors 86 detect an egg upstream of each gap, conveyer 75 is moved forward by one row of pockets. The transverse rows of pockets are formed by recesses in rollers 92 forming part of the conveyer. A paddle wheel 103 lifts the eggs out of the pockets on to a plate 114 leading to a conveyer 105 having cross-bars 107. The egg arranging means 102 comprises pairs of plastic discs 115 loosely mounted on a shaft 116. The discs of each pair are held apart by compression springs at a distance less than the length of an egg so that the passage of an egg between the discs causes the discs to tilt and the egg to re-orientate with its forward end downward. Rails 124 then converge the longitudinal lanes of eggs. At the discharge end of the conveyer pads 130 lift the eggs while pads 138 of sponge rubber mounted on adjustably weighted, pivoted arms 136 tilt the eggs backwardly. Fingers 143 on a shaft 142 control the eggs as they slide down a fixed shoot 132 into the container C. A conveyer 16 advances the container from a magazine to the filling station and then to a turntable having guides to feed the containers on to a discharge belt moving in the reverse direction to conveyers 66, 75 and 105. The drive for the conveyer 16 contains a pair of manually interchangeable indexing wheels (183, 184) for use with a carton or flat respectively.
Patent GB-1505737-A (GB)
Title: Apparatus and method for producing knitted articles
IPC: D04B9/02
Filed: 1975-02-25
Abstract: 1505737 Knitting-machines A BUCK 25 Feb 1975 [25 Feb 1974] 7898/75 Heading D1C To allow shallower needle-cam slopes and hence faster production in a circular knitting machine e.g. for wire meshwork, the cylinder carries longitudinally movable sinkers 2 between the needles 1 which sinkers are cammed upwardly simultaneously with lowering of the needles to assist in drawing the loops and then are lowered during knocking-over. The sinkers are raised at the steepest point of the needle slope and the ratio of needle to sinker travel may be 3 to 1.
Patent GB-931083-A (GB)
Title: Improvements in and relating to colour television apparatus
IPC: H04N9/24
Filed: 1960-03-07
Abstract: 931,083. Colour television. PHILCO CORPORATION. March 7, 1960 [March 6, 1959], No. 7979/60. Class 39 (1). [Also in Group XL (b)] The rear surface of the face-plate 28 (Figs. 2 and 3) of a colour television picture reproducing tube is provided with a repeating series of colour (red, green and blue) reproducing phosphor strips 38, 39, 40, respectively, and, separated therefrom by an electron-pervious light-reflecting film 41, light emissive indexing members comprising stripes 42 and a repeating series of stripes 43, 44, 45. The stripes 42 (of which there may be more than two) lying outside the picture area together with that portion of the stripes 43 and 44 overlying the (blue) stripes 40 have a spacing such that, when scanned by the tube beam, a signal of frequency f may be generated in an external photo-electric-cell circuit whilst that portion of stripes 43 and 44 overlying the spaces between the colour stripes together with stripes 45 (also overlying the spaces between the colour stripes) have a spacing such that a signal of frequency <SP>3</SP>/ 2  # is produced in the external circuit. Both of these signals are utilized to produce a third signal of frequency f to control the application of chrominance signals to the tube in a colour television receiving system (see Group XL (b)). U.S.A. Specification 2,778,971 is referred to.
Patent GB-479569-A (GB)
Title: Improvements in swivelling pipe or tube joints
IPC: F16L27/053
Filed: 1937-03-19
Abstract: 479,569. Pipe joints. GELDBACH, A. March 19, 1937, No. 8089. [Class 99 (i)] In a joint in which a packing ring 4 preferably of V- or U -section is located in a recess 3 of the socket and held by fluid pressure against a spherical-ended spigot 6, the recess has an outer conical wall tapering towards the socket mouth. The ring may have an inner part-spherical surface of a smaller radius of curvature than the spigot.
Patent GB-678734-A (GB)
Title: Improvements in or relating to discriminator circuits
IPC: H03L7/02
Filed: 1950-03-31
Abstract: 678,734. Frequency discriminators. GENERAL ELECTRIC CO., Ltd., and ASPIN, J. J. E. March 28, 1951 [March 31, 1950], No. 8146/50. Class 37. The frequency wave deviation from standard to be measured is applied to a cathode follower valve 1 feeding two damped series resonant circuits 6, 8, 9 and 7, 1.0, 11 tuned above and below the standard frequency; the whole or a part of the voltages developed across resistances 9, 11 is rectified at 12, 13 and combined in opposition at 22 to provide a signal whose sign and magnitude corresponds to the deviation of the frequency from standard.
Patent GB-1032788-A (GB)
Title: Containers for liquids
IPC: B65D3/04
Filed: 1962-12-04
Abstract: 1,032,788. Helically wound containers. R. C. CAN CO. Dec. 4, 1962 [Dec. 4, 1961], No. 8190/66. Divided out of 1,032,787. Heading B8D. A container for liquids comprises a cylindrical fibrous body formed from helically wound strip material, the abutting edges of the strip forming a helical butt joint, which is filled in with sealing material to ensure that the rim at each end of the body is continuous, whereby metal ends can be crimped thereon. The container may be formed from layers 10 and 11 of helically wound paper strips adhesively connected together, the helical line of weakness 18 formed where the strip edges forming the layer 11 meet being strengthened by a plastics ribbon 19. This is stuck to the outer surface of a liner 12 for the container and the strip 11 wound around the liner so that the ribbon 19 registers with the helical line 18. The ribbon is made of plastics and is squeezed into the butt joint to form a strip of substantially H-shaped cross-section. A liquid impervious layer 13 is adhered to the outer layer 10.
Patent GB-886432-A (GB)
Title: Improvements in and relating to on-load transformer tap-changing arrangements
Inventor: BOOKER FRANK
IPC: H01F29/04
Filed: 1959-03-10
Abstract: 886,432. Transformers. GENERAL ELECTRIC CO. Ltd. March 7, 1960 [March 10, 1959], No. 8222/59. Class 38 (2). A voltage regulating arrangementc omprises autotransformer A with tappings 2 to 12 and a pair of selector switches with bridging contacts F, G and fixed members D, E. Member E is connected to one end of the tapped secondary winding H of an auxiliary transformer. Alternate tappings on H are arranged on opposite sides of the winding for contact with bridging members K, M which connect a selected tapping to output terminal U through moving contact T. To change from tapping 12 to tapping 11 the procedure is as follows, the current path shown in heavy line: tappings on H are changed in sequence by moving the appropriate selector switch to the next tapping to be used, then moving contact T to connect the tapping to the load. When tapping 14 is reached (Fig. 3) M is moved to contact 25, T is moved to contact R, then G is moved to tapping 11 and K to tapping 24 (Fig. 5). When T is moved back to contact N, F is moved to tapping 11, and M to tapping 23. The sequence is repeated so that each subsidiary tapping is connected in turn to the output circuit at each main tapping position, the voltage from a subsidiary tapping always being added to that from a main tapping.