baber/WOPTO huggingface dataset:
Patent GB-785637-A (GB)
Title: Improvements in or relating to adjustable struts
IPC: E21D15/502
Filed: 1956-01-23
Abstract: 785,637. Friction grip fastenings. REGLAIN. H. Jan. 23, 1956 [Jan. 25, 1955], No 2184/56. Class 44. [Also in Group X] A strut comprises two angle bars 1, 2 of the same cross-sectional shape fitting in slidable contact one in the other, the inner bar having formed or provided on the side opposite its back an external ramp 5 inclined to the longitudinal axis and adapted to be engaged by one side of a clamping collar surrounding the bars and engaging the back of the outer bar, the collar being adapted to be forced down over the ramp in order to secure the bars in any desired relative position. In the embodiment of Fig. 4 a lower strut member 1 of angle section is slidably received within an upper strut member 2 of similar section and is provided on each flange with a notch 6 having an edge 5 inclined to the longitudinal axis. of the strut, the two edges 5 being located in a common plane to constitute an inclined ramp. A clamping collar surrounds the elements at the level of the notch 6 and comprises a pair of triangular members 8, 9 on a common base 10 which engages the inclined edges 5, the apices 8a, 9a of the triangles being connected to a member 7 formed with heels 11a, 11b which can be struck to urge the collar downwardly or upwardly respectively in order to clamp or release the strut. In a modification, Fig. 7 (not shown) each flange 4 of the lower strut member 1 is provided with a pair of successive notches and the clamping member is formed with two cross members one engaging the inclined edges of each notch. In a further modification, Fig. 8, (not shown) the inclined ramp consists of a member welded between the flanges of the lower strut member 1.
Patent GB-560616-A (GB)
Title: Improvements in spinning boxes
IPC: D01D7/02
Filed: 1943-02-10
Abstract: 560,616. Claw clutches. AMERICAN VISCOSE CORPORATION. Feb. 10, 1943, No. 2204. Convention date, March 18, 1942. [Class 80 (ii)] [Also in Groups II and IX] Centrifugallyoperated clutch means are used between a constantly-running bush 4, and a removable spinning pot 1. The fit 3 between the parts 1 and 4 is close, but sufficient clearance is left to permit removal of the pot. An annular member 5 in the pot supports pivotally mounted members 6 having weighted ends 8 which, when the pot reaches a certain speed, are flung outwards and cause the ends 7 to engage grooves 9 in the bush. The slots may be in pairs or staggered. In a modification, the members 6 have a slot where mounted on their pivoting pins, and their inner ends are pin-jointed to axially-sliding members which engage recesses in the base of the bush. One side of each recess is bevelled. In a further arrangement the lower ends of the slidable members are screwed to a clutch plate with teeth on its lower surface. When the weighted ends of the pivoted members are flung outwards, the clutch plate is lowered and the teeth mesh with upwardly-projecting teeth on the bush base.
Patent GB-1224603-A (GB)
Title: An alternating current control device
IPC: G05F1/445
Filed: 1969-01-14
Abstract: 1,224,603. Switching systems for the control of A.C. motors. AUCO N.V. 14 Jan., 1969 [15 Jan., 1968], No. 2232/69. Headings H2H and H2J. Apparatus for controlling the current flowing in a load L, such as an electric heater or an A.C. motor driving a fan, comprises a semiconductor controlled switching element T connected in series with the load L across an A.C. supply FO, a resistor R 1  and capacitor C 1  mutually in series being connected in parallel with the element T, the gate electrode of which is connected by way of a voltage breakdown device T to the junction of the resistor R 1  and capacitor C 1  which capacitor has connected in parallel therewith the series combination of a capacitor C 3  and a control device TR the control electrode of which is connected to the tapping on a voltage divider R 4 , R 5  which is connected in parallel with the control device TR. The device TR comprises the parallel connection of a pair of dissimilar transistors. and functions as a variable impedance in parallel with the capacitor C 1 . Thus the rate of charging of the capacitor C 1  is determined by the settings of the variable resistors R 4 , R 5 , the function of the capacitor C 3  being to compensate for any mismatch in the characteristics of the transistors in the device TR. The rate at which the capacitor C 1  charges determines the point in the half-cycles of the A.C. supply at which the DIAC D breaks down and hence the point in these half-cycles at which the TRIAC T becomes, conductive. The load current is therefore controlled by the settings of the resistors R 4 , R 5  which settings may be operated manually or automatically. The stability of the apparatus may be increased bythe addition of the series connection of resistor R 2  and capacitor C 2  across the TRIAC T with the interconnection of resistors R 1 , R 2  by a further resistor R 3 . If desired, resistor R 1 , R 2 , R 3  may be variable.
Patent GB-792904-A (GB)
Title: Improvements in and relating to clutch mechanisms
IPC: F16D43/18
Filed: 1955-01-25
Abstract: 792,904. Clutches. BOCHORY, M. Jan. 25, 1955 [Jan. 26, 1954], No. 2236/55. Class 80 (2). A centrifugally-operated clutch, particularly for use on automobiles, is combined with a main friction clutch in series therewith and on a unidirectional clutch in parallel. The centrifugal clutch comprises friction shoes 7 radially movable on supports 19 secured to a flywheel 1 on a driving shaft 2 into engagement with a drum 21 which is rotatably mounted upon bearings 25, 25a on the driven shaft 26. The drum 21 is coupled to the driven shaft 26 by means of a main spring-loaded clutch plate 34 axially slidable on splines on the shaft 26 and adapted to be disengaged by an electromagnet 40. The uni-directional clutch comprises a helical spring 29 arranged between a drum 28 on the flywheel 1 and a ring 21a on the drum 21 and coupled at 24 to the drum 21. No drive is transmitted by the spring 29 from the drum 28 to the ring 21a but should the driven shaft 26 tend to over-run the driving shaft 2 frictional drag on the spring expands it into engagement with the drum 28. On a vehicle this allows engine braking and starting the engine by pushing. Other forms of uni-directional devices may be used such as pawls engaging ratchet teeth or wedging ball or roller devices. The main clutch 34 is normally engaged but is disconnectible for speed changes either manually or automatically. This clutch may be operated mechanically instead of electrically or by any other servo-control. The shoes 7 of the centrifugal clutch are actuated by pivoted weights 3 through the intermediary of balls 15 and returned by springs -45 between the shoes. Springs 12 are located between the friction facings 11 and the shoes to provide a progressive engagement of the drive.
Patent GB-1397042-A (GB)
Title: Liquid storage tanks having floating roofs
IPC: B01F27/91
Filed: 1973-01-16
Abstract: 1397042 Tanks with floating roofs GENERAL SIGNAL CORP 16 Jan 1973 [31 Jan 1972] 2278/73 Heading BIT [Also in Division B1] A mixer 12 is mounted on a plate 14 which is a floating roof 11 in a storage tank 10. A driving shaft 16 extends through the roof into the liquid and has an impeller 18 thereon for pumping the liquid vertically, either upwardly or downwardly. A liquid-filled vapour lock 17 surrounds shaft 16. The impeller may be surrounded by a diffuser; also the bottom of the tank may be shaped to accommodate the impeller when the roof moves to its lowest position. The conduit 21 that supplies power to motor 13 has two flexible sections to accommodate rise and fall of the motor with the roof.
Patent GB-335489-A (GB)
Title: Improvements in and relating to screw-cutting devices
IPC: B23B27/08
Filed: 1930-01-22
Abstract: 335,489. Rondel, F., and Iochum, G. Jan. 22, 1930. Tools; tool-holders.-In a screw-cutting device, a square plate 8, provided with cutting-edges 9 - - 12 is slidably mounted in a depression in the head of a tool-holder and adjusted' by a set screw 5. The plate has one plane face which lies flush with the holder and can be brought up against the chuck to facilitate adjustment; each of its four cutting-edges is backed off to suit a particular size of thread and it is held in the required position by a nut and bolt. A sawcut 3 gives the holder elasticity during cutting.
Patent GB-103862-A (GB)
Title: An Improved Distribution Valve for Multiple-expansion Fluid-pressure Engines.
Inventor: HALLIDAY THOMAS ERNEST
IPC: F01L33/02
Filed: 1916-02-15
Abstract: 103,862. Halliday, T. E. Feb. 15, 1916. Drawings to Specification. Multiple-expansion engincs.-Fluid pressure is distributed by a rotary valve having peripheral admission and exhaust ports connected by longitudinal passages which may act as receivers and may be supplied with main pressure fluid by a hand-controlled pipe coaxial with the valve for starting.
Patent GB-694523-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: A23L3/20
Filed: 1951-01-30
Abstract: 694,523. Plate heat-exchangers. ZEUTHEN, R., and LARSEN, M. Jan. 30, 1951, No. 2288/51. Class 64 (iii) The plates 1, 6 of a heat exchanger have reinforcing fillets 3, 4 and packings 5, Fig. 4, along their edges and are arranged in pairs in each of which the distance between the plates is less than that between adjacent pairs of plates. Moreover, in order to resist deformation, each plate has at least one curved portion (two being shown in each plate in Fig. 2) the curvature of which is that of a surface of a cylinder of circular cross-section, the corresponding surfaces of each pair of plates having a common axis but different radii so that the thickness of the path between the plates of each pair for fluid, such as milk to be heated, is uniform. The fluid paths 9 between the pairs of plates, i.e. the paths for the heating medium, are thicker than those for the milk &c., by reason of an offset 2, Fig. 4, on the edge of one plate 1 of each pair. The fillets 3, 4 and packing 5 are of uniform thickness throughout the stack of plates. Supports 15, 16 are placed between the plates where the curved surfaces of a plate meet and are in turn supported by protrusions from end members 17, 18 between which the plates 1, 6 are fixed. The curved surfaces may be arranged transversely or longitudinally to the direction of fluid flow.
Patent GB-1086234-A (GB)
Title: Direct method for measuring the quotient between the volume of flow of a fluid and asecond value
IPC: G01F1/22
Filed: 1966-01-18
Abstract: 1,086,234. Measuring fluid-flow and fuel consumption. J. C. S. DASIVLA BENTO. Jan. 18, 1966 [Feb. 1, 1965], No.2318/66. Headings G1K and G1R. A method of measuring directly the quotient between a volume of flow Q of a fluid and a second value G, comprises determining the value of this quotient Q/G by the position assumed by a float 8 placed within the fluid-flow to be measured, the float being subjected to a dynamic force resulting from a pressure drop caused by the float and to a second force which is directly proportional to the square of the second value G, the position of the float being determined by the balance of these two forces. In the embodiment shown in Fig. 4, the second value G is a second flow which passes through a second tube with a second float 9 connected by a thread to the first float 8 so that movement of one float causes movement of the other float. The tube containing the float 8 has a variable cross-section. In another embodiment Fig. 2 (not shown) the float 8 is connected to a cylinder to which a torque is applied, the second value being the speed of rotation of the cylinder (4). The apparatus may be used to indicate fuel consumption, the flow of fuel being the value Q and the second value G being derived from the speed of the vehicle such as by the spindle of the tachymeter rotating an impeller to give a fluid-flow proportional to the velocity of the vehicle.
Patent GB-189017-A (GB)
Title: Improvements relating to journal and other bearings
IPC: F16C17/03
Filed: 1922-01-26
Abstract: 189,017. Michell Bearings, Ltd., and Newbigin, H. T. Jan. 26, 1922. Cylindrical-journal bearings; rectilinear-motion bearings.-The bearing faces of the bearing pads of a Michell bearing are recessed on three sides to form trapezoidal bearing portions, adjacent trapezoidal portions being oppositely-directed or staggered, the recessed parts providing a sinuous channel continuous throughout the series for the passage of surplus lubricant from one element to another. Fig. 4 shows a journal bearing in which the pads 12 rock against the housing 13 and bear against a collar 14 dipping into an oil well, the pads being recessed as shown at 11, Fig. 6, to form the sinuous channel. To maintain the pads in correct assembly, corner projections 17, 17<a>, Fig. 6, formed on alternate pads, engage notches in the other pads. In the journal bearing shown in Fig. 7, the pads 18 bear directly on the shaft, and oil is supplied thereto by a ring-oiler 21 from a well 20. A scraper 22 deflects the oil into the sinuous channel 23, Fig. 8, and a similar scraper 24 deflects oil leading along the shaft into drainholes 27. The applications to a journal bearing having pads pivoted on pins mounted in the housing"to a journal bearing having flexible pads, and to an engine slipper block are also described. Specifications 23496/11, 109,959, 119,961 [Class 12 (iii), Lubricators &c.], and 123,010 are referred to.
Patent GB-733941-A (GB)
Title: Vehicle window raising and lowering mechanism
Inventor: STEPHENSON CYRIL HEATH
IPC: E05F11/44
Filed: 1953-01-28
Abstract: 733,941. Window operating mechanism. WILMOT-BREEDEN, Ltd. April 26, 1954 [Jan. 28, 1953], No. 2417/53. Drawings to Specification. Class 20 (3). In a vehicle window raising and lowering mechanism wherein a pivotal arm for effecting vertical movement of the window is operable under the action of a rotary handle through epicyclic gear, a clutch is provided for automatically interrupting the connection between the handle and the arm if an excessive load is put on the mechanism. Details of two arrangements are given.
Patent GB-1323545-A (GB)
Title: Hydraulically or pneumatically controllable pilot-operated slide  valve
IPC: F15B13/04
Filed: 1971-01-18
Abstract: 1323545 Valves CONTRAVES AG 18 Jan 1971 [1 April 1970] 2432/71 Addition to 1193028 Heading F2V A line A may be connected to a supply line D or a return line R by a slide valve 41 actuated by pistons 22, 23 of different cross-section from each other, the smaller piston 32 being continuously subjected to the pressure in the line D while the other piston is connected to the line D by an orifice 61 and to the line R by a diaphragm-actuated valve 80 and an orifice 71 so that opening of the valve 80 causes the slide valve to move to the left. Leakage fluid from the pistons flows past square members 44 in bores 45 and into a passage 40 communicating with the return line R through an aperture 43. In an alternative construction, the valve 80 is carried by a lever actuated by a pair of diaphragms and the smaller piston is slidably mounted within a bore situated at one end of the slide valve and fed with fluid under pressure from the duct D.
Patent GB-535157-A (GB)
Title: Improvements relating to electrical resistances
IPC: H01C3/06
Filed: 1940-02-08
Abstract: 535,157. Variable resistances ; grid resistances. CHANCE BROS. & CO., Ltd., and HALLETT, L. B. H. Feb. 8, 1940, No. 2450. [Class 37] A resistance comprises a number of resistance elements a, each in the form of a looped metal strip or wire and having its ends arranged adjacent to each other. Flat spacing pieces b of insulating material are arranged between these ends. Contact pieces c in the form of flat rectangular plates each having a thickened portion at one edge are inserted between adjacent ends of successive resistance elements a with the thickened edges projecting in spaced relationship with each other beyond the extremities of the elements. The resistance elements a, insulating spacers b, and contact pieces c are each formed with a hole through which passes a rod d with an insulating sleeve e. The assembly is clamped by nuts f, between which and the adjacent resistance elements are interposed insulating washers g. The resistance elements, insulating pieces, and contact pieces may alternatively be mounted on a pair of parallel rods each provided with nuts. The resistance elements may be arranged in the same line or they may be spread out fanwise to facilitate cooling. In a modification, the parts are mounted between adjacent sides of a pair of supports or between the adjacent edges of a slot formed in a single support. The adjacent edges of the support or supports are adapted to be engaged by notches in the sides of the parts to be assembled between them, which parts are clamped by a screw or spring at one or each end of the assembly.
Patent GB-1457423-A (GB)
Title: Associative memories
IPC: G11C15/04
Filed: 1973-01-17
Abstract: 1457423 Associative memories NATIONAL RESEARCH DEVELOPMENT CORP 2 April 1974 [17 Jan 1973] 2476/73 Heading G4C [Also in Divisions H3-H5] An associative memory comprises memory cells 10, Fig. 1, arranged in m rows each storing a single word and in n columns, each row having all its memory cells 10 connected by a line 27 and being accessed via a line 30, whereas each column is accessed via lines 25, 26, a control cell 12 being provided for each row to operatively connect the line 27 to at least one of a reference potential +V from lines 31-33, Fig. 2, to a potential - V, or to the line 30, to perform read, write, match and standby (refresh) operations for each memory cell. Each memory cell 10, Fig. 2, comprises cross-coupled MOS transistors 21, 24 formed on a substrate maintained at potential +V, the gate capacitance of one or other of transistors 21, 24 being charged from a respective one of lines 26, 25 via a respective one of MOS transistors 23, 22 to store binary 1 or 0 in the cell (binary 1 being stored by charging transistor 21). Further MOS transistors 28, 29 enable read-out of the stored information by means of detected currents between the respective lines 25, 26 and the line 30, or the "matching" of a stored binary 1 or 0 by means of the detected current in line 30, when suitable potentials are applied to the memory cell 10 from the control cell 12 on the lines 27, 30. Each control cell 12 receives reference potentials ŒV on the lines 31-33 (line 33 always carrying the inverse potential to line 32), and comprises MOS transistors 34-36 connecting the lines 31-33 to the lines 27, 30. In the following, the potentials on lines 25, 26, 27 and 30 are assumed to be zero unless otherwise stated, and the value of any non-zero potential is indicated in a bracket following the line number. Writing=27 (between - V and 0); 25(+V) for write 1 and 26(+V) for write 0. Masked write=27(nearly +V), 30(+V), 25 and 26 indifferent (this leaves memory cell unaffected by write operation). Reading = 27(+V), 30(+V). Masked read = 27(+V) only (for masking read-out of all other rows to a row being read-out). Match 1= 25(+V), 27(+V); match 0 : 26(+V), 27(+V). Masked match=25(0), 26(0), 27(+V) (resulting in cell being prevented from contributing a mismatch current to line 30). In the embodiment of Fig. 4 (not shown), each memory cell (40) comprises two MOS transistors (44), (46) and is accessed by a single column line (48) and row lines (50), (52). Information is stored in the cell (40) by charging the gate capacitance of transistor (44) via transistor (46). The operations permitted on the cell (40) are similar to those for the cell 10 of Figs. 1-2 except that only one "match" operation, e.g. "match 1", can be performed, "match 0" being forbidden. In this embodiment of Fig. 5 (not shown), a pair of memory cells each similar to the cell (40) of Fig. 4 are combined to form a single memory cell (70), the cell (70) being accessed by a pair of column lines (72) and (74) in order to permit both "matchl" and "match 0" operations.
Patent GB-113636-A (GB)
Title: Improvements relating to the Discharge of Liquids from Vessels or Containers.
Inventor: TATE WILLIAM RAMAGE
IPC: B67D1/04
Filed: 1917-02-20
Abstract: 113,636. Tate, W. R., and Park, A. V. Feb. 20, 1917. Direct gas-pressure apparatus. non-automatic. -Bottles, barrels, &c. for containing beverages under pressure are closed by a head fitted with a siphon tube 2 and valve 3, a compressed gas reservoir 5, and a diaphragm valve 12, the upper part of which is under pressure of a spring 17 and the lower part of which is attached to a valve 15 leading from the gas reservoir. When the pressure in the bottle is reduced by discharge of liquid, the diaphragm 12 is depressed and the valve 15 opened, and gas passes through the port 9 into the bottle. The gas reservoir is charged with gas through a valve 7 and port 8.
Patent GB-474438-A (GB)
Title: Method of and apparatus for atomising liquid fuels
IPC: F23D11/10
Filed: 1936-01-27
Abstract: 474,438. Liquid - fuel burners. TEICHNER, M., and PREISS, M. Jan. 27, 1936, No. 2491. Void. Convention date, Jan. 26, 1935. [Class 75 (i)] Liquid - fuel drawr from a tank 5 is atom ized at a jet 4 initially by compressed air from the upper part of a water tank 1 and sub sequently by steam fron a generator 3 connectec to the lower part o the tank 1. The ai: and steam supplies an controlled by a valve 6 The steam generator 3 comprises detachable frusto-conical members 11, 12, the outer mem ber 12 being grooved or corrugated and formed with an inlet 14 and outlet 15.
Patent GB-1152636-A (GB)
Title: Method of Manufacturing a Jet Fuel
Inventor: BERCIK PAUL GERARD
IPC: C10G65/04
Filed: 1967-01-18
Abstract: 1,152,636. Jet fuel. GULF RESEARCH & DEVELOPMENT CO. 18 Jan., 1967, No. 2562/67. Heading C5E. A process for making jet fuel comprises contacting a straight run kerosene with hydrogen in the presence of a hydrogenation catalyst at 343-399‹ C., a pressure of 35-105 kg/cm.<SP>2</SP> gauge, LHSV of 1-6 and a hydrogen circulation rate of 26À7-178 SCM/min/100 litres kerosene, contacting the resultant product with hydrogen in the presence of a hydrogenation catalyst at 232-371‹ C., 35-105 kg/cm.<SP>2</SP> gauge, LHSV of 1-10, and a hydrogen circulation rate of 35À6-178 SCM/min/100 litres of product of first stage. The catalyst for the first stage may comprise Ni, Co, Mo, W, oxides and sulphides thereof, cobalt molybdate or nickel tungstate deposited on porous carriers such as Al 2 O 3  and SiO 2 . The catalyst for the second stage may be (a) 12-50% by weight Ni, Co, Mo and/or W, or (b) 0À5-5% by weight of Pt or Pd each on a porous refractory support.
Patent GB-976873-A (GB)
Title: Combine harvesters
IPC: A01F12/44
Filed: 1961-01-23
Abstract: 976,873. Threshing machines. ETABLISSEMENTS BRAUD. Jan. 23, 1961 [Jan. 26, 1960; March 18, 1960], No. 2566/61. Heading A1F. In a threshing machine or combineharvester the screw-elevators 16, 26, for elevating the corn for delivery and the incompletely-thrashed products for recirculation, include portions 18, 28, 30 which serve as separators or for hulling and husking. The final delivery elevator 16 carries the corn from the transverse auger 11 to bagging shoots 20, 23 and rotates in a duct 17 which at its lower end includes a roughened portion 30 serving as an awner, this portion being detachable. The upper part 18 of the duct is perforated and is surrounded by a housing 19 which receives undersized grains for delivery via the shoot 23. A fan 21 creates a countercurrent of air which blows awns, chaff, and husks away through a duct 22. On the other side of the machine, the elevator 26 receives incompletely-threshed products from the dressing screens 12 via the auger 15. These products are further treated between the screw 26 and surface 28 before being fed back into the machine by the blades 29. For ease of transport the elevator 17 is hinged at its mid-point (Fig. 5, not shown).