baber/WOPTO huggingface dataset:
Patent GB-230723-A (GB)
Title: A furnace for refuse destructors
IPC: F23G5/00
Filed: 1924-09-08
Abstract: 230,723. Weck, E., and Weck, C. H. [Firm of]. Sept. 8, 1924. Refuse-consuming furnaces; steam generator furnaces; air supply, regulating; ash-pits; grates; fuel, feeding.-A refuse-consuming furnaca comprises a preliminary drying and coking chamber c, separated from the fire chamber by a low aircooled bridge d, and an inclined grate formed of three sections each composed of alternate rocking and fixed perforated bars h, h<1>, the area of the perforations in the middle section being greater than that in the two end sections. The bars h, h<1> are of the section shown in Fig. 3 and have cooling ribs on their under sides. A baffle j overhangs the grate and directs the gases through the opening above the bridge d on to the refuse in the chamber c. At the lower end of the grate is an adjustable fuel-retaining plate i and at the upper end is provided an ignition grate e over which a clinlier-scraper f is adapted to be moved by a hand-lever g. The air supply for combustion is led through flues k to side chambers k<1> from which it is delivered through conduits (not shown) to the ash-pit, the latter being divided by partitions into three parts corresponding to the sections of the grate. The sides of the chambers k<1> adjacent the fire are formed by renewable castiron plates m having cooling ribs on the inner sides. The refuse is fed to the chamber c by rotary cylinders or cell-wheels band another cylinder n serves for supplying lime.
Patent GB-1492676-A (GB)
Title: Variable resistance device
IPC: H01C10/24
Filed: 1975-05-19
Abstract: 1492676 Variable resistors SPECTROL ELECTRONICS CORP 19 May 1975 [25 June 1974] 21222/75 Heading HIS A multi-turn variable resistor comprises a helical resistance element 14 engaged by a contact (48, Fig. 2, not shown) carried by a rotary assembly 20, means being provided to restrain rotation of assembly 20 except on the application of a relatively large force thereto, the restraining means comprising a movable member which, in a first position, permits free rotation of the assembly but which, in a second position, engages a resilient member to cause a frictional force between the resilient member and another part of the resistor. In a first embodiment the restraining means is constituted by a pin 64 which, when fully inserted in a bore 16 of housing 10, urges the corners of a three-sided spring 62, Fig. 4, against the walls of bore 32 of rotor 30. In an alternative arrangement a tapered end surface (69, Fig. 5, not shown) of a pin (68) bears against an 0-ring (66) to restrain rotation of the rotary assembly. In a third arrangement, Fig. 8, the force required to rotate assembly 20 may be adjusted. Rotor shaft 22 has an internally threaded bore 79 which receives a movable set screw 78. Positioned in an aperture 74 in shaft 22 is a resilient member 76 the ends of which frictionally engage a bore 29 of a shaft bearing stud 27. The frictional forces between member 76 and bore 29 are adjusted by axial movement of screw 78 to deform member 76.
Patent GB-597454-A (GB)
Title: Means for controlling associated machines
IPC: B30B15/00
Filed: 1945-08-20
Abstract: 597,454. Cam actuation of switches. MACHINERY (BIRMINGHAM), Ltd., and HOOSON, G. C. Aug. 20, 1945, No. 21223. [Class 38(v)] [Also in Group XXIX] A master control device for preventing the starting of any but a selected one of a number of machines e.g. riveting presses, each having its own controlling means comprises a manually operable selector lever, agate for determining the positions to which the lever can be moved and means operable by the selector lever for over-riding the controlling means associated with the individual machines. The selector lever m moves in a gate n having a longitudinal slot o and three branch slots p and is mounted on an angulary and axially movable shaft j carrying three cams k which in the selective positions of the lever are located opposite bell crank levers f pivotally mounted on a shaft g. The levers f are loaded by springs i and act either directly or through adjustable abutments h to hold plunger valve e closed against the fluid pressure in a common supply pipe b. Individual valves are permitted to open when a cam k depresses the respective lever f on raising the lever m in the corresponding slot p. Pressure fluid may then pass through an outlet d to the controlling means of the selected machine. Meanwhile the fluid pressure is cut off from the controlling means of the other machines by the remaining valves e. Each lever f may open a spring-loaded electric switch w when in its valve closing position. Where the individual machine controlling means comprise electromagnetically-operated valves, the switches controlling these valves may be in circuit with the switches w which therefore provide an additional safeguard against undesired starting. Each valveoutlet passage c has an adjustable spring- loaded relief valve q. In the case of electrically-operated machines the levers are adapted to actuate switches instead of valves.
Patent GB-1417656-A (GB)
Title: Power assisted steering systems
IPC: B62D5/08
Filed: 1973-05-04
Abstract: 1417656 Power steering systems ZAHNRADFABRIK FRIEDRICHSHAFEN AG 4 May 1973 [6 May 1972] 21224/73 Heading B7H In a power steering system including an accumulator 2 and a control valve 4, supply lines 21, 22 to the servo cylinder 23, 24 are connected via non-return valves 30, 31 to a return duct 27, this arrangement allowing the vehicle to be steered when the vehicle engine is not running and there is no accumulator pressure. The control valve comprises a pair of spools 13, 14 at either side of an operating pin 15 repectively controlling fluid flow between the valve inlet grooves 5, 6 and grooves 19, 20 connected to supply lines 21, 22. Fluid in grooves 5, 6 passes via axial grooves 9, 10 to the end faces 11, 12 of the spools to urge them against the pin 15. Axial grooves 32, 33 connect grooves 19, 20 to the return duct 27. With no accumulator pressure, e.g. during towing of the vehicle, one of the spools remains unmoved by the accuating pin 15 and blocks supply to the servocylinder. Under such conditions the partial vacuum created in the appropriate servo cylinder chamber 23 or 24 causes valve 30 or 31 to unseat and allows fluid flow from the return duct 27 and thence to groove 19 or 20 and line 21 or 22. Reaction pistons 36, 37 are provided for feel.
Patent GB-765070-A (GB)
Title: Improvements in heat exchangers
IPC: F28D9/00
Filed: 1952-08-23
Abstract: 765,070. Contacting liquid with gases. GARNIER, F. Aug. 19, 1953 [Aug. 23, 1952], No. 21232/52. Drawings to Specification. Class 55 (2). [Also in Group XIII] The Provisional Specification describes an apparatus for gas cleaning, in which steam or water is sprayed into upwardly flowing streams of gas, the water and steam condensate collecting ultimately at the lower end of the apparatus having carried away any entrained solids from the gas. The gas passages are so constructed that the gas is deflected alternately across the passage between opposed passage walls with equal angles of incidence and deflection. Specifications 26973/06, [Class 29], 288,594 and 300,618, [both in Class 123 (ii)], are referred to.
Patent GB-709827-A (GB)
Title: Improvements in or relating to deflection systems for cathode ray tubes
IPC: H01J29/76
Filed: 1951-09-11
Abstract: 709,827. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. (Lorenz Akt.-Ges. C.). Sept. 11, 1951, No. 21366/51. Class 39(1) An electromagnetic deflection system for a cathode-ray tube comprises a set of four line deflection coils 4, 5, 6, 7, and four frame deflection coils 8, 9, 10, 11 wound as segments of toroids about a common ferromagnetic yoke, and connected as pairs of series connected coils in parallel as shown in figure 2. To correct for capacity unbalance between the pairs. of coils 4, 7 and 5, 6 of the line deflection system a trimmer condenser 17 is inserted as shown in Fig. 3. To suppress the circulating current i set up due to the coils 5, 6 being inductively unbalanced, there is inserted a condenser 18 of negligible impedance to line frequency currents, but of high impedence to frame frequency currents. The current i arises as a result of the magnetic flux of the frame coils threading the line coils.
Patent GB-1312562-A (GB)
Title: Apparatus for the continuous production of sheet plastics material
IPC: B29C43/22
Filed: 1971-04-19
Abstract: 1312562 Moulding between endless belts HERMANN BERSTORFF MASCHINENBAU GmbH 19 April 1971 [11 Feb 1970] 21398/71 Heading B5A  A layer of powdered plastics material is applied from a device 10 as a layer on an endless belt 8, whereon it is moulded in the nip with a further endless belt 3, during heating by means 4, as the belts pass around a drum 1, the moulded layer of plastics material being cooled and solidified within the belt nip during passage through a device 11. The belts 3 and 8 are entrained around guide rollers 2 and 5, 6, 7 and are of steel or steel mesh coated with parting agent. The moulded layer of plastics material may incorporate a strip of a plastics meshwork or glass fibre reinforcement 9. It is stated that an additional steel belt may be entrained around the drum 1 and its guide roller 2, to increase the tension in the belt 3.
Patent GB-797539-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/28
Filed: 1955-07-25
Abstract: 797,539. Thermionic valves: electrode materials. WESTERN ELECTRIC CO., Inc. July 25, 1955 [July 26, 1954], No. 21438/55. Class 39(1). A thermionic valve amplifier comprises a cathode heater 12, cathode 11, control grid 13, screen grid 14, anode 15 and means for reducing noise in the valve including forming the anode 15 of a single crystal of metal with its axes so orientated with respect to the cathode stream as to cause electrons elastically reflected by the anode to traverse a path which does not pass back through the control grid so as to prevent the reflected electrons from inducing additional currents in the control grid. The single crystal anode 15 is positioned with its electron-receiving face at an angle other than perpendicular to the incident electrons and can be of nickel or copper and cut normal to its 111-axis. The single crystal anode can be made by positioning a small crystal in a melt with a suitable temperature gradient. Other methods are referred to. The anode comprises a frame member having a central window to which frame a single crystal is attached by fine wires. A collector electrode 16 it positioned to collect substantially all electrons tectrically reflected from the anode 16 and may be curbed with a flat portion extending into the space between the screen grid frame and the anode 15. The general construction of the valve is as described in Specification 707,711.
Patent GB-380893-A (GB)
Title: Process for the manufacture of carbon and hydrogen
IPC: C01B3/26
Filed: 1931-07-27
Abstract: In the catalytic decomposition of gaseous hydrocarbons or of gases containing hydrocarbons to form carbon black and hydrogen, the process of the parent Specification is modified by commencing the reaction with undiluted catalyst and passing the hydrocarbon gas thereover, the carbon formed penetrating the catalyst and becoming a carrier therefor.  After a time, a concentration of catalyst in the total of catalyst and carbon black is reached at which the reaction proceeds most efficiently and this concentration is maintained by the continuous or intermittent addition of fresh catalyst.  In the case of iron and methane, the favourable concentration is 80 to 45 per cent and the gas is passed until the volume of gases evolved reaches a maximum and when this begins to decrease fresh catalyst is added e.g. as carbonyl or as a solid, such as iron, previously activated by high temperature treatment with a hydrocarbon or carbon monoxide and thus containing 15-20 per cent of carbon.  In operation, the gas to be decomposed is preferably first passed over a less efficient catalyst, e.g. one largely diluted with carbon black, and then over a catalyst maintained at the desired concentration.  The gas may be passed through the first chamber until reaction ceases after which the catalyst may be removed by known methods.  In addition to iron powder, iron oxide or carbonate, or mixtures of iron and nickel, iron and zinc, cobalt and nickel, or iron, nickel and zinc may be employed as catalysts, and an activator such as an alkaline earth oxide may be added.
Patent GB-1235841-A (GB)
Title: Pulse radar system
IPC: G01S13/52
Filed: 1965-05-20
Abstract: 1,235,841. Pulse radar. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. 20 May, 1965 [26 May, 1964], No. 21503/65. Heading H4D. In a twin pulse MTI radar, elimination of chaff echoes is effected. Two separate frequencies F 0  + # 0  and F 0  - # 0  are transmitted and the target Doppler frequency is given by: where V = target radial velocity #F = difference between the trans- = mitted frequencies = 2# 0 . The system derives a reduced Doppler frequency for chaff as compared with systems using a single carrier. For the chaff, the Doppler frequencies are below that at which the receiver gain commences, i.e. the chaff echoes react similarly to those from a fixed target. The value #F is selected to provide the first maximum of the amplitude-frequency response of the receiver at the centre frequency of the target Doppler frequency band. At the receiver the two frequencies, F 0  + f 0  and F 0  -f 0  pass through separate channels and the mean frequency, f 0 , is derived from the mixers 47, 48 which receive the frequency F 0  from the transmitter oscillator 40. After amplification in the amplifiers 49, 410, the signal f 0  is applied the multiplier 411. The output from 411, #F = 2f 0 , is fed to the fixed target elimination device 413.
Patent GB-834019-A (GB)
Title: A means for sewing a fastener member to a support and assemblies including the same
IPC: F16B5/06
Filed: 1956-07-11
Abstract: 834,019. Anchor-bolts etc.; spiked-plates. UNITED-CARR FASTENER CORPORATION. July 11, 1956 [July 13, 1955], No. 21507/56. Classes 89(1) and 89(2) A cage 10, Fig. 2, for securing a spring- clip 16, Fig. 4, bolt or screw to a panel 14, comprises a base 20 with an upstanding-rim 24 and a flange 26 extending outwardly from the free-edge of the rim. The flange extremity has teeth 28. The cage is fixed in a hole 12 in a panel 14 by flattening the flange, causing the teeth to penetrate the side-wall of the hole.
Patent GB-312028-A (GB)
Title: Hypodermic syringe
IPC: A61M5/28
Filed: 1928-07-24
Abstract: 312,028. Woodyatt, R. T. May 19, 1928, [Convention date]. Syringes.-A glass container or ampoule 10 has two separate tubular orifices, one adapted to make a hard smooth-surfaced joint with the socket in the hub 20 of a conventional type of hypodermic needle 22 and the other constructed and arranged to connect with an air-forcing device 28. In order to preserve the continuity of the column of liquid within the container, regardless of the position of the container during the injecting operation, the body is of small internal diameter not in excess of about 5 m.m. Normally the orifices may be sealed as by the fusion of the glass to form tips adapted to be broken off at a notch or predetermined point when the ampoule is to be used; or one of the tube ends may be tapered or have a tapered fitting adapted to receive the hub of the needle and form a, rigid sealed hard-surface union therewith. As shown the end 14 of the tube has a metallic or hard-rubber smooth-surfaced sleeve 18 to make] a tight joint with the needle hub.
Patent GB-1389805-A (GB)
Title: Methods and apparatus for making elongated structures of  silicon and silicon carbide
IPC: C30B31/10
Filed: 1973-05-07
Abstract: 1389805 Elongated silicon or silicon carbide bodies DOW CORNING CORP 7 May 1973 [17 May 1972] 21551/73 Heading C1A Elongated Si or SiC bodies having at least one flat side in the direction of elongation are prepared by vapour phase deposition on to a removable graphite mandrel, wherein the mandrel comprises at least one elongated flat graphite member and one or more other graphite members of equal length, the members being held together by a pair of collars surrounding the ends of the members. Rectangular hollow tubes can be produced using a mandrel comprising four slabs 12. Alternatively a triangular sectioned tube can be made using three slabs. A semicircular tube can be formed using a flat slab and a hemi-spherical section. The rectangular tube may be sawn at the corners to obtain four flat slabs. The ends of the graphite mandrel 11 may be joined to the collars 13 by a taper, the opposite ends of the collar being connected to an electrical power source via a tapered male portion and a Cu ring 18.
Patent GB-389364-A (GB)
Title: An improved method of and apparatus for regulating the tobacco feed in cigarette-making machines
IPC: A24C5/39
Filed: 1932-08-02
Abstract: 389,364. Cigarette-making machines. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MLLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Aug. 2, 1932, No. 21666. Convention date, Aug. 4, 1931. [Class 130.] For obtaining a uniform feed of tobacco in continuous-rod machines provided with two or more tobacco spreaders or hoppers, the quantity of tobacco delivered by the first hopper is checked by a feeler device which is utilized to control the rate at which additional tobacco is delivered by the subsequent hopper or hoppers. As shown, the hoppers A, B are each provided with a feed drum b, a carded combing drum c, a brushing roller d, and a picker roller e which delivers tobacco to a common conveyer belt h. From the belt h the tobacco is fed by a roller r and a carded roller s and is showered by a picker roller t into the rod channel u<1>. The feed drum b in the hopper A is driven from a main shaft W through bevel gearing K<1>, K<2> and worm gearing Sch, R ; and the drum c and the belt g are driven from the drum b through gearing R<1> .. R<5>. The drums b, c in the second hopper B are similarly driven from a shaft W<3>, which is driven from the main shaft W through gearing R<7>, R<8> and a change-speed gear V such as is described in Specification 228,838, [Class 80 (i), Gearing, Belt &c.]. The change-speed gear is continuously controlled, in accordance with the quantity of tobacco delivered by the hopper A, by means of a roller i resting on the layer of tobacco on the belt h and carried by a lever i<1> mounted on a shaft i<2> connected through bevel gearing to a shaft i<4> carrying a pointer k moving over a scale l. The change-speed gear V may be adjusted by means of a hand-wheel m, in accordance with the readings on the scale l, or adjusted automatically by the device shown in Fig. 2. This comprises a two-armed lever 2 mounted on the shaft i<2> and provided at its ends with pivoted fingers 3, 4 co-operating with slidable fingers 7, 8 connected by a rod 14. The fingers 7, 8 are reciprocated by means of a slotted plate 9 integral with the finger 7 and engaged by a crank pin 10 on a helical gear wheel 11 driven from a helical wheel 13 on the shaft W. When the thickness of the tobacco laver increases or decreases and the roller i rises or falls, the finger 3 or 4 is interposed between the reciprocating finger 7 or 8 and a projection 17<2> or 17<3> on one of the levers 17, 17<1>, which are pivoted on the shaft 16 and held by springs 18 against stops 18<1>, 18<2>. A pawl 21 or 22 pivoted on the lever 17 or 17<1> is thus moved clear of a cam surface 24 or 25 and into engagement with one of the ratchet wheels 19, 20 on the shaft 16, which is rotated step by step and drives the adjusting shaft v of the speed gear V by means of bevel gearing 15, m<3>, m<5>.
Patent GB-372179-A (GB)
Title: Improvements in and relating to filtering apparatus for air and other gases
IPC: B01D46/18
Filed: 1931-07-29
Abstract: 372,179. Gas filters. WITTEMEIER, H., 11, Bismarck Allee, Grunewald, Berlin.- (Assignee of Delbag Deutsche Luftfilter Bauges.; 11, Schweidnitzerstrasse, Halensee. Berlin.) July 29, 1931, No. 21671. Convention date, Feb. 12. Addition to 370,748. [Class 8 (ii).] After its washing by jets of liquid, the travelling band filter a is dried or partly dried by an air jet or jets, e.g. from a perforated pipe e. The air blast may be controlled by the feed mechanism for the belt, e.g. by a cam or tappets thereon opening a spring- loaded valve.
Patent GB-891775-A (GB)
Title: Vacuum compensator valve for milking machines
IPC: F16K24/06
Filed: 1959-06-24
Abstract: 891,775. Valves. SEABORNE, T. L. April 5, 1960 [June 24, 1959], No. 21710/59. Class 135. A vacuum compensator relief valve 6, spring or weight loaded at 12 is opened by air pressure acting on primary and secondary pressure responsive means for small vacuum fluctuations and on tertiary means for large openings to compensate large fluctuations. For small fluctuations air enters through openings 18 adjustable by rotation of sleeve 13 and acts primarily on the area of valve 6 and, by deflection in seat recess 8, secondarily on disc 9 attached to the valve 6. Larger fluctuations produce a pressure reduction in the valve inlet chamber 30 so that atmospheric pressure acting via sleeve openings 23 on the bottom of piston 20 opens the valve still further. A plastic disc 15 sliding within the sleeve 13 damps valve movement. A rubber cap 26 seated on top of the valve has a stopper 27 sealing a casing opening 24. The cap may be reversed so that a narrow stopper 28 no longer obturates the opening 24 but extends therethrough to hold the valve closed and a metering opening 29 allows sufficient air to pass to test the reserve vacuum in the milking machine.
Patent GB-1294644-A (GB)
Title: Improvements in and relating to composing text portions on a blank sheet in accordance with a lay-out sheet
Inventor: TROING OLA PETER
IPC: B41J11/62
Filed: 1970-05-06
Abstract: 1294644 Copy-holder O P TROING 6 May 1970 [8 May 1969] 21738/70 Heading B6W A typewriter copy-holder comprises a frame consisting of guide rods 5 and back plate 6, guide rollers 15 and 16 slidably mounted on rods 5 for adjustment towards and away from the typewriter platen 2, and an indicator member 19 affixed to the type-carrier. Additional guide rollers 12 and 13 may be provided at the base of the frame. A sheet 24 bearing the matter to be typed is joined to a blank sheet 23 using adhesive strips (31, Fig. 2, not shown) 32 to form a continuous loop threaded around the guide rollers and typewriter platen as shown. With a fixed platen and moving type carrier machine the indicator member 19 moves over the sheet 24 as typing progresses. With a moving platen machine the frame moves the sheet 24 beneath the indicator 19. When advancing the sheet 23 by one line the sheet 24 is moved by the same amount and indicator 19 is correctly aligned with the next line to be copied.