baber/WOPTO huggingface dataset:
Patent GB-870814-A (GB)
Title: Improvements in or relating to railway vehicles
Inventor: HIRST ARCHIE JOHN
IPC: B61F1/14
Filed: 1958-08-05
Abstract: 870,814. Railway vehicle undercarriages; springs. METALASTIK Ltd. June 23, 1959 [Aug. 5, 1958], No. 25123/58. Classes 103(6) and 108(3). The body 5 Fig. 1 of a railway vehicle is supported from a transom 8 of a bogie frame 6 by side bearer assemblies 11, each comprising a rubber block 12 having bonded metal interleaves 30 Fig. 2, and end plates 31, which block acts mainly under compression but allows horizontal movement of the body relative to the frame mainly under shear, and an annular rubber spring 15 with metal interleaves and end ring members 14, 16, which latter spring carries the block 12 and permits vertical movements of the body relative to the frame, under shear, but resists transverse movements, under compression. The member 14 is the side wall of a cup carrying the block 12 and the cup together with the annular spring 15 constitute the deformable wall of a pneumatic spring having an air space 19 communicating through a hole 18 with an air chamber 17 in the frame 6. By controlling the air pressure in the space 19 the body is maintained at a constant level. If desired the cups 14 may be.connected by a rigid plank. In another embodiment the annular spring is replaced by a pneumatic cushion and a rigid plank interconnecting the cups is connected to longitudinal links in turn connected to the frame. Another embodiment (Fig. 4 not shown) discloses a block 12 mounted between upper and lower annular springs 15 the lower spring being inverted. The outer members 16 of the springs 15 are connected by a sleeve which serves as the chamber for the pneumatic spring. The body 5 is also connected to the bogie frame by a pin 9 and longitudinal link 10 in known manner.
Patent GB-1181621-A (GB)
Title: Electrical Circuit Module and Method of Manufacture.
IPC: H01L21/60
Filed: 1968-05-27
Abstract: 1,181,621. Semi-conductor devices. BECKMAN INSTRUMENTS Inc. 27 May, 1968 [7 June, 1967], No. 25168/68. Heading H1K. [Also in Division C1] A semi-conductor device is attached at an electrode surface to a conductive track on an insulating substrate bearing other circuit components by means of a cermet consisting of finely-divided metal particles distributed in a glassy matrix. The substrate may be of glass, alumina, beryllia, steatite or insulated metal and the finely divided particles of gold, silver, palladium, platinum, ruthenium, rhodium, iridium or alloys thereof. For mounting germanium or silicon devices a glass with a softening temperature below 450 C., such as a high lead or bismuth oxide-cadmium oxide glass is used, and to ensure good conduction the metal should constitute more than 60% by weight of the cermet. In one embodiment, a transistor with aluminium emitter and base electrodes and a gold collector is mounted collector down on a platform of corresponding shape, or an area only one edge of which is covered by the conductive track, by applying the cermet in an organic binder by brushing, stencilling, or silk screening, mounting the device on the wet cermet and heating first at 70-80 C. to remove the binder, and then at 400 C. in a reducing atmosphere to sinter or fuse the glass. A suitable method of forming the cermet is to moisten glass particles with a noble metal resinate, calcine to deposit the metal on the particles and then grind to a suitable mesh size and add the organic binder.
Patent GB-748193-A (GB)
Title: A method of briquetting solid fuels
IPC: C10L5/16
Filed: 1953-09-14
Abstract: 748,193. Briquetting solid fuels. BERGWERKSVERBAND ZUR VERWERTUNG VON SCHUTZRECHTEN DER KOHLENTECHNIK GES. Sept. 14, 1953 [Sept. 18, 1952], No. 25275/53. Class 50. Solid fuels, such as coal, are briquetted by coating a fine grain fraction of the fuel to be briquetted with a mineral oil in the presence of water or water vapour and mixing the thus coated fine grain fraction with the remaining fraction of the fuel to be briquetted and with a binder of pitch, hard bitumen, natural asphalt or the like, the mineral oil being an oil in which the binder is readily soluble. The fine grain fraction may comprise from 10-20 per cent of the entire quantity of fuel to be briquetted and the quantity of oil used, amounting to about ¢-1 per cent of the amount of fuel to be briquetted, is sufficient to cover with a film of oil the surfaces of all the coal particles. Coal tar oil is a suitable mineral oil and the amount of binder required is stated to be reduced from 6-7 per cent to 4 per cent of the amount of fuel to be briquetted.
Patent GB-795235-A (GB)
Title: Process for the manufacture of aromatic hydrocarbons
IPC: C07C5/41
Filed: 1954-08-31
Abstract: Aromatic hydrocarbons containing a substantial amount of para-xylene are obtained by heating 2 : 4 : 4-trimethylpentene, optionally in admixture with 2 : 2 : 4-trimethylpentane in the presence of a solid aromatization catalyst comprising an oxide of a metal of the sub-group A of the VIth group of the Periodic System.  The temperatures are preferably in the range of 475-550 DEG  C.  The catalyst may also contain oxides of titanium, zirconium, thorium and vanadium, and also palladium and platinum, and as activators, oxides of the alkali metal group or alkaline earth metal group or rare earth metals may be present.  The catalyst is preferably supported on an alumina carrier, and may be made according to the process described in Group III.  In a typical example a mixture of 80 per cent of 2 : 4 : 4-trimethylpentene-1, and 20 per cent of 2 : 4 : 4-trimethylpentene-2, is passed at 500 DEG  C. over 120 c.c. of a catalyst consisting of chromium oxide, potassium oxide, cerium oxide and gamma aluminium oxide.  The aromatic constituent comprised 98 per cent paraxylene. Specification 777,732 is referred to.ALSO:A catalyst for use in the conversion of 2 : 4 : 4-trimethylpentene to para-xylene (see Group IV (b)) comprises an oxide of a metal of the sub-group A of the VIth Group of the Periodic System.  The catalyst preferably contains at least 2 per cent of chromium oxide, molybdenum oxide, tungsten oxide or mixtures thereof and at most 98 per cent of aluminium oxide. Oxides of titanium, zirconium, thorium or vanadium, palladium or platinum metal, and activators consisting of oxides of the alkali metal group or of the alkaline earth metal group or rare earth metals, may also be added.  The components may be precipitated together or mixed with one another, but preferably the active components are absorbed on the surface of the carrier.  A suitable carrier is obtained by precipitating aluminium hydroxide from an aluminium nitrate solution with ammonia and heating at 750 DEG  C. for 5 hours.  A solution of chromic acid, potassium nitrate and cerous nitrate is added and the whole heated for 3 hours at 550 DEG C. in a current of hydrogen.  Specification 777,732 is referred to.
Patent GB-461737-A (GB)
Title: Improvements in spectacle and like frames
IPC: G02C5/18
Filed: 1936-09-17
Abstract: 461,737. Spectacles. BONNEVILLE, J. N. Sept. 17, 1936, No. 25329. Convention date, June 30. [Class 97 (i)] A reinforcement for the temple piece of a non-metallic frame consists, at least at the part adjacent the hinge, of two wires which are parallel or approximately parallel to each other and are disposed one above the other. In the Figure, the two reinforcing steel wires 5 extend one above and the other below the rivets by which the side 1 is attached to its hinge member so that the rivets pass wholly through the non-metallic material. At a point A towards the outer end of the side the two wires are joined together to form a single reinforcement.
Patent GB-1176148-A (GB)
Title: Improvements relating to Tanks for use in Fluid Systems
Inventor: MORTIMER FRANK RADCLIFFE
IPC: F15B1/26
Filed: 1966-06-08
Abstract: 1,176,148. Hydraulic pressure tank. DUNLOP CO. Ltd. June 7, 1967 [June 8, 1966], No.25430/66. Heading F1P. A header tank for an aircraft hydraulic system comprises a housing 10, 11 having a liquid filled chamber 6 variable in volume by a displaceable wall 7 continuously loaded by a spring 22, and arranged to be further loaded by springs 31, 32 when the wall has been displaced by a predetermined amount, the wall 7 being sealed to the casing 10, 11 by a rolling diaphragm 9. The movement of the wall 7 is guided by a fluted stem 16 integral with the housing part 10. Expansion of the springs 31, 32 is limited by a cage 21 formed from two tubular parts 26, 27 which telescope when contacted, as shown, by the displaceable wall 7. A tubular extension movable with the wall 7 has an end 15 which extends into a transparent end cap 17 to provide a visual indication of the end wall displacement. The chamber is connected to the system through a port 5.
Patent GB-670134-A (GB)
Title: Improvements relating to water (or other liquid) heaters
Inventor: BENNETT ALEC RAYMOND
IPC: F24H1/18
Filed: 1949-10-04
Abstract: 670,134. Heating water &c. RADIATION, Ltd. Oct. 2, 1950 [Oct. 4, 1949], No. 25460/49. Class 64(i) A gas heater for mounting in contact with the outer surface of a tank for heating water or other liquid in it comprises a casing g secured to the tank by straps, a burner f, a refractory block a, and a metal sheet d which extends across and is spaced from one side of the block and lies close to or in contact with the whole of the part of the tank wall b through which heat is to be transmitted. Hot gases from the burner flow through a recess c in the block. The metal sheet d has fins e, and stiffening corrugations m. A layer k 'of graphite paste may be provided between the sheet d and tank wall b. The heater can be mounted near the top of the tank.
Patent GB-961788-A (GB)
Title: Improvements relating to electric gating circuits
Inventor: TODD ROBERT JOHN
IPC: H03K17/74
Filed: 1962-07-03
Abstract: 961,788. Zener diode gating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 13, 1963 [July 3, 1962], No. 25490/62. Heading H3T. A pulse-plus-bias gating circuit comprises a pulse input capacitor C, a bias input resistor R and an output rectifier RFD, all of which are connected at one side to a common point P and at the other side to a pulse input terminal IT, a bias input terminal BT and a pulse output terminal OT respectively. As shown, the bias input terminal is connected to a source of bias comprising a potentiometer Rc, Rd connectible by switch S, which may be electronic, to a negative source. According to the invention, the rectifier RFD comprises a Zener diode connected for conduction in its reverse direction in response to the application of an applied input pulse of the same polarity as the previously applied bias potential, at terminal BT, holding the Zener diode reverse biased.
Patent GB-1093771-A (GB)
Title: A method of manufacturing double-walled or multi-walled tubes
Inventor: COLLINS HENRY ISAIAH
IPC: B21C37/09
Filed: 1965-06-17
Abstract: 1,093,771. Making multiwalled tubes; welding by pressure. S. T. D. SERVICES Ltd. Aug. 25, 1966 [June 17, 1965], No. 25587/65. Headings B3A, B3E and B3R. A multi-walled tube is formed by feeding two or more strips into a superimposed relation and bending the strips longitudinally to form concentric tubes with their longitudinal edges together, after which the edges are simultaneously welded together under pressure. Two strips 10, 11 are fed through slitting rollers 15, 16 which form the strips to the desired width, the inner strip in the formed tube being narrower than the outer strip. The strips are then positioned one above the other by pairs of opposed grooved rollers 19, 20. The rollers 19, 20 are fixed on a quadrant 38 which is movable to adjust the position of the rollers for various strip widths. The strips 10, 11 are brought into contact, shaped into tubular form by a series of rollers 21 and the open seam guided by a knife edge (24), Fig. 2 (not shown), to a welding station. The longitudinal edges are preferably induction welded between pressure rollers 25. After welding the tube may pass through two or more sizing rollers. Normally the multi-walled tube will be made from strips of the same metal but different metals may be used, e.g. mild steel and stainless steel.
Patent GB-205960-A (GB)
Title: Improvements in machines for semi-trimming and marking wall paper
IPC: B44C7/02
Filed: 1922-09-21
Abstract: 205,960. Staunton, E. G. Sept. 21, 1922. Printing processes.-In an apparatus for semitrimming the selvages of wall-paper wherein the cutters are lifted at intervals from the paper, means are provided for marking the paper at the un-cut portions. During the inoperative printing periods, a cam 39 on a shaft 30 lowers, through arms 42, 43 secured to a shaft 17, an adjustably mounted colour fount 44 which prints on the paper through a wick 55. The shaft 30 also serves to depress the cutting mechanism and is driven through worm gearing and variable disc and roller mechanism 38, 35.
Patent GB-519723-A (GB)
Title: Improvements in or relating to interlocking toy building bricks
IPC: A63H33/08
Filed: 1938-09-02
Abstract: 519,723. Building-blocks. SCHIFFLER, K. Sept. 2, 1938, No. 25674. [Class 132 (iii)] A flat element A for a box of interlocking toy bricks has, at least three slots of a width equal to the thickness of the element arranged symmetrically on each longitudinal edge separated by at least four lugs having the same width and a depth equal to one quarter of the width of the element. Elements may be provided with a projection at each end of height h equal to twice the thickness and width d of half the thickness.. Others may have at one end a projection of the same height and a width equal to the thiekness. This depth also is equal to the thickness of the element. End elements B are also supplied.
Patent GB-1416293-A (GB)
Title: Agitator mill
IPC: B02C17/16
Filed: 1974-06-10
Abstract: 1416293 Agitator mills NETZSCH MASCHINENFABRIK Gebr 10 June 1974 [13 June 1973] 25679/74 Heading B2A An agitator mill includes counter-elements 10 Fig. 3 projecting into spaces between the agitator elements 8 to prevent rotation of milling bodies and feed material with the agitator shaft 7, the counter-elements being adjustable into or out of the milling vessel 2 during operation of the mill. Thus the mill can start up easily and as the viscosity of the feed changes due to heating the counter-elements can be moved into the vessel either equally or more at the top, or the bottom respectively. The way 9 of the vessel 2 comprises an internal liner 13 and an outer shell 14 Fig 4 which together form a cooling water chamber 15. The counter elements 10 in each group 18 are pivoted at 21 to a shift bar 19 or a pair of shift bars. Each shift bar carries pinions 23, 24 at bottom and top respectively. The pinions are actuated by handles 25 and mesh with racks 26, 27. The racks are pivoted at 28 to the wall 9 of the mill and run on rollers 29. Actuation of the handles may be independent or all pinions may be operated at the same time by a common actuating mechanism. The milling chamber can be wheeled into position in a drive stand in known manner.
Patent GB-257968-A (GB)
Abstract: 257,968. Dreyfus, H. April 9, 1925. Acetic anhydride is prepared by bringing acetic acid vapour into contact with a heated substance having a high affinity for water, such as zinc chloride or bisulphates and pyrosulphates, especially those of the alkali and alkaline earth metals; calcium chloride and sulphuric acid are excluded and reference is made to the prior use of alkali phosphates, alkali and alkaline earth chlorides and sulphates, and boric acid and borates. The substance is preferably mounted upon a porous carrier, such as pumice or kieselguhr, and is stirred; it may be regenerated continuously, thus when molten it may be circulated through a hot zone to remove the adsorbed water and returned to the reaction. The temperature conditions may vary between 200-1000‹ C. and reduced pressure may be employed. The reaction gases are preferably fractionally condensed by the method described in Specification 256,663 to separate the anhydride from water vapour when present. An example is given according to which the vapour of glacial acetic acid is passed at ordinary pressure over heated sodium pyrosulphate and the products fractionated.
Patent GB-171544-A (GB)
Title: Improvements in electric cooking appliances
IPC: A47J37/06
Filed: 1920-09-08
Abstract: 171,544. Hammonds, A. C., and Wagg, M. J. Sept. 8, 1920. Surpports for articles to be heated; drip collectors.-An electric cooking-appliance of the type in which a heating-element is disposed above a vertically - adjustable grill has a fat-catching receptacle secured to the grill. In the form shown, the heating- members b are disposed below asbestos packing c mounted in a chamber with brick walls a. A cage d carrying a grilling- grid e is mounted for vertical movement in the chamber on a support k working in guides m. The support k is provided with a rack engaged by a hand-operated pinion o. A counterbalance weight t is secured to the support k by a chain r passing over a pulley s. A tray g is arranged below the grid to catch falling fat. A chamber f<1> may be provided in the cage to hold plates or the like which it is desired to warm. Extra heating elements may be provided at the sides of the chamber. The fat tray may be partitioned to separate fat falling at the front of the grid from that falling at the back.
Patent GB-1138950-A (GB)
Title: Device for the treatment of materials by means of a recirculated gaseous medium
IPC: D06B5/00
Filed: 1966-06-10
Abstract: 1,138,950. Treating textiles. VEPA AG. 10 June, 1966 [21 July, 1965], No. 25864/66. Heading D1L. A sieve drum treatment device for loose textile material, lengths of textile material and the like has a suction fan 6 arranged in a fan chamber 4 relative to each drum 5 which passes air over heaters 7 into upper and lower air inlet chambers 9 having constricting elements, e.g. an adjustably mounted wall 11 and shaped baffles 14 on a framework 13 so that the chambers 9 extend over along the axial direction of the drum and are of diminishing cross-sectional area in the flow direction to achieve uniform distribution of the air into the drums.
Patent GB-462984-A (GB)
Title: Improvements in or relating to systems for carrier-frequency telephony
IPC: H04B1/52
Filed: 1935-09-18
Abstract: 462,984. Two - - way transmission. SIEMENS & HALSKE AKT.-GES. Sept. 18, 1935, No. 25923. Convention date, Sept. 19, 1934. [Class 40 (iv)] [Also in Group XL] In a two-way carrier system employing different frequencies for the two directions and filters for separating the frequencies at bridge connections between a two-way line and two one-way paths, the balance at the bridge is improved by arranging that the product of the impedances of the filters as seen from the bridge is equal to the square of the line impedance. In a particular case stated to avoid reflections, the impedance of one filter is double that of the line and that of the other is one half. As shown in Fig. 2, the filters B1, B2 are the normal filters in the two paths and are each associated with a dummy filter B<1>1, B<1>2 having the pass range of the normal filter in the other path. Reactances X associated with the filters are such that impedance of each combined normal and dummy filter as seen from the bridge is independent of frequency and equal to the line impedance. As shown, the filters of each combined pair are connected in parallel, but if #-section filters are used they are connected in series. By using suitable ratios for the bridge transformers, the impedances may be made double and half the line impedance respectively. The combined filters B1, B<1>1 or B2, B<1>2 may be replaced by the filters shown in Figs. 3 and 4. In the filter shown in Fig. 3, a T-section filter of impedance Z1 and a #-section filter of impedance Z2 are such that Z1.Z2=Zo<2> where Zo is independent of frequency. Each filter is connected in series with a resistance of value Zo and the filter-resistance combinations are connected across the path in parallel to give an input impedance Zo which is made equal to the line impedance. Fig. 4 is a corresponding arrangement with the filters in series.
Patent GB-483299-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B60L15/04
Filed: 1936-09-14
Abstract: 483,299. Master control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. Sept. 14, 1936, No. 25924/35. [Class 38 (iii)] A series-parallel control system comprises two remotely controlled switching units operated by a single pilot motor, one unit being associated with each motor, and relay means associated with the circuit of the motors and operative in dependence on the value of the current in the circuit adapted automatically to reduce the speed of the pilot motor when the current exceeds a predetermined value. Upon operation of a master controller to its first position, switches LS1, LS2, S1B, S1A, F1A, F2A are closed and motors 1, 2 are connected in series to the supply with armature resistances 9, 10 inserted. A pilot motor is then energized to operate controller contacts 11-44 in turn to remove the series resistances in steps. A current relay having its coil 58 in series with the motor 2 is effective when the motor current exceeds a predetermined value, to insert resistance in circuit with the pilot motor and slow it down. If a greater motor current is reached the relay opens further contacts to stop the pilot motor. When the contacts 28, 44 close, a contactor S2 is energized and the motors 1, 2 are connected directly in series across the supply, the resistance controllers moving to their initial positions. If the master controller is moved to its second position, switches S1A, F2A, F1A open and switches P1A, P2A close. Bridge transition connections are thus established and then the switch S2 opens. The motors 1, 2 are thus connected in parallel to the supply each in series with its armature resistance which is gradually removed by further operation of the pilot motor. When the resistances have been removed contactors P3B, P4B are closed and the two motors are connected in parallel directly across the supply with full field excitation. Contactors FIB, F2B are also closed and S1B opened, the resistance controllers moving again to their initial positions. If the master controller is moved to its third position contactors P1A. P2A open and contactors F1A, F2A close and the resistances 9. 10 are connected in shunt with motor fields 3. 4 respectively. The resistance controllers then operate to weaken the fields to a certain extent. The full diversion of the motor fields is effected by moving the master controller to its fourth position. In an alternative arrangement the current limit relay may be arranged to strengthen the field of the pilots motor when a certain motor current is reached and to cut out armature resistance or insert resistance in the field circuit of the pilot motor and speed it up when the current falls to a predetermined value, the relay floating between its two sets of contacts for intermediate values of another current.
Patent GB-386603-A (GB)
Title: Improvements in and relating to tool carriers for boring and similar machines
IPC: B23B29/034
Filed: 1932-09-17
Abstract: 386,603. Boring -heads. MANNESMANNRÍHREN-WERKE, 1B, Berger Ufer, Dusseldorf, Germany, and SCHIMMEL, H., 24, Weingasse, Komotau, Czecho- Slovakia. Sept. 17, 1932, No. 25935. [Class 83 (iii).] A rotary boring- head having a toolholder capable of transverse adjustment in slideways on the head is arranged so that the thrust on the tool is transmitted uniformly over the guiding surfaces ; this is effected by bars placed intermediate the slide and its ways having point contact with the slide on the side of the axis through which the working force acts. The working force on the tool 1 of a rotary boring-head K, Fig. 3, is denoted by Pr and bars 8, 9 are arranged between the slide 2 and the ways. The resisting torque acts through the point contacts C and is spread uniformly over the relatively movable surfaces. Springs 10 may be provided as shown with means for adjustment for wear 11. A similar arrangement is adopted for the guiding surfaces in the plane of rotation, Fig. 2.