baber/WOPTO huggingface dataset:
Patent GB-819236-A (GB)
Title: Floating tank roof
IPC: B65D88/38
Filed: 1957-07-22
Abstract: 819,236. Tanks. WIGGINS, J. H. July 22, 1957 [Aug. 16, 1956], No. 23097/57. Class 69 (1). In a tank roof of the type adapted to float upon liquid. contained in the tank and to rise and fall as variations occur in the liquid level, the roof has a drain for disposing of precipitation that may collect upon the upper surface of the deck 14 of the roof and may tend to overstress the roof structure when the tank is empty and the roof is resting with its legs 18 upon the bottom 12 of the tank. The drain comprises a drain conduit 23 extending through the deck 14 in a liquid-tight fashion, a tube 27 on the upper side of the deck being joined at one of its ends to the conduit 23 and having its other end free for vertical movements with respect to the roof deck. A counterweight lever 34 is connected to the tube 27 for normally retaining its free end in a well elevated position with respect to the deck to prevent the liquid in the tank from flowing on to the upper surface of the deck through the tube 27 and conduit 23. A rod 40 extends downwardly through an opening 39 in the deck and is arranged to engage the bottom of the tank when the roof settles to a position adjacent the bottom 12 for automatically pivoting the lever 34 to lower the free end of the tube 27 from the elevated position to a position adjacent the upper surface of the deck. The tube 27 and conduit 23 are so constructed that when the tube 27 is lowered they form a drain through which the precipitation may flow by gravity from the upper side of the deck into the interior of the tank. A one-way valve 28 is arranged in the elbow 25 of the conduit 23 to permit flow of liquid through the tube 27 and conduit 23 only in the direction of the arrows 29, 30. To avoid contact between the valve 28 and the liquid in the tank and to prevent the escape of fumes the conduit 23 may be kept full of water. A water cup 47 is supported on the end of the conduit and an upstanding pipe 48 having a rain catcher 49 is provided on the elbow 25. In a modification the tube 27 is raised and lowered by means of a cable secured to an eye-piece 32 of a clamping ring 31 on the free end of the tube 27. The cable is wrapped upon a drum the shaft of which is journalled in a bracket fastened to the upstanding pipe 37. A pinion on the shaft meshes with a toothed rack formed on the rod 40.
Patent GB-207592-A (GB)
Title: Improvements relating to fluid pressure pump governing systems
IPC: F15B11/10
Filed: 1922-08-25
Abstract: 207,592. Baker, W. S. Graff-, Agnew, W. A., and Westinghouse Brake & Saxby Signal Co., Ltd. Aug. 25, 1922. Pressure-regulating valves.-Valve controlling means for a fluid-pressure pump governing system comprising a number of pumps or compressors adapted to charge a fluid-pressure system controlled by governors operating different pumps according to the pressure existing in the system comprises a valve interposed between the reservoir or reservoirs to be charged and the pump governor so arranged that an increase of pressure in the reservoir after a predetermined reduction of pressure is caused to reduce the pressure on the pump governor. The Figure shows the valve device controlling the supply of fluid through a pipe 2 to one of the governors. Fluid from a receiver is admitted by a pipe 1 to the interior of the casing from which the pipe 2 leads, and presses on one face of a diaphragm 4 on which an adjustable spring 19 also exerts pressure through the stem 6 of the diaphragm. The other side of the diaphragm is subject to pressure in a closed receptacle (not shown), delivered through a connection 16, the receptacle receiving compressed fluid from the main receiver through the pipe 1 and a passage 17 with a non-return valve. If the receiver pressure falls, the diaphragm first pushes an auxiliary slide valve 8 engaging its stem to the right, and after an interval a projection 22 on the stem pushes a main slide valve 7 to the right, the pipe 2 being then open to the interior of the valve casing and to the receiver pressure through a port 10 in the main valve uncovered by the auxiliary valve. If the pressure falls to the extent necessary to cut any of the pumps in, the rising pressure returns the diaphragm and with it the auxiliary valve till it reaches a point when a cavity 9 in this valve connects ports 11, 12, one of which is then in communication with the pipe 2 and the other with a port 13 in the slide valve seat leading to atmosphere; the governor then cuts the pump in, further increasing the pressure and thus effecting a nearly simultaneous cutting in of all the pumps through their valve devices. Communication between the pipes 1 and 2 is maintained in the position shown through a port 14 and passage 15.
Patent GB-422718-A (GB)
Title: Improvements in or relating to electrical fuses
IPC: H01H85/26
Filed: 1933-08-19
Abstract: 422,718. Fusible cut-onts. BRITISH BRASS FITTINGS, Ltd., and SPERRYN, G. N., 100, Moorsom Street, Birmingham. Aug. 19, 1933, No. 23163. [Class 38 (i)] A supply of spare fuse wire is carried in a recess in the bridge carrier of a fuse of the type having a projecting boss f that enters a hollow a in the base enclosing a fuse wire e between them, the spare wire being housed in a recess g in the boss. A screw or push-in cover h closes the recess g and has a spool-shaped stem j on which the wire k is wound.
Patent GB-1114895-A (GB)
Title: An electromechanical filter
IPC: H03H7/01
Filed: 1965-05-31
Abstract: 1,114,895. Filter networks. FUJITSU Ltd. 31 May, 1965 [30 May, 1964], No. 23183/65. Heading H3U. An electromechanical band-pass filter comprises an electric filter portion and a mechanical filter portion interconnected by a pair of terminals, the electric filter portion having only three electrical elements therein including an inductance and a capacitance in series, wherein the impedance of the electric filter portion as seen from said terminals is equal to the impedance of the mechanical filter portion as seen from said terminals at the centre frequency of the band to be passed and wherein the bandwidth of the electric filter portion is broader than the bandwidth of the mechanical filter portion. The mechanical filter portion determines the bandwidth and attenuation whereas the electric filter portion serves chiefly for impedance matching, the arrangement enabling a very narrow bandwidth with sharp cut-off characteristics to be obtained.
Patent GB-731286-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: COOPER DAVID HENRY D OYLY
IPC: B60C9/20
Filed: 1952-09-16
Abstract: 731,286. Pneumatic tyres.- DUNLOP RUBBER CO., Ltd. Aug. 31, 1953 [Sept. 16, 1952], No. 23192/52. Class 144 (2). A pneumatic tyre cover has a circumferentially extending tread reinforcement strip 3 comprising a series of contiguous overlapping triangular-shaped convolutions 11 of substantially inextensible rubber-coated filamentary material 10, such as steel or nylon wire, strip or cord, the base 12 of each convolution being shorter than the height and extending transversely of the tread 1 normal to the tyre side walls 2. The triangular convolutions may be formed as a continuous winding as shown or may be separate windings. The tyre carcase may have a flexible side wall construction comprising two plies 7 of parallel textile cords, the cords of the two plies being oppositely biased and meeting the tyre beads at an angle between 70 and 90 degrees. The apex angle of each triangular convolution 11 may be 40 degrees, the convolutions being isosceles in shape.
Patent GB-1100053-A (GB)
Title: Sealing devices
Inventor: UNDERWOOD CYRIL JAMES
IPC: F16J15/46
Filed: 1965-06-01
Abstract: 1,100,053. Piston packing; shaft seals. DOWTY SEALS Ltd. 27 May, 1966 [1 June, 1965], No. 23303/65. Headings F2B and F2T. A sealing device between two relatively slidable members, e.g. a piston 11 and a cylinder 12, comprises an annular recess in one, 11, of the members, two axially spaced backing rings 18, 19 extending from opposite ends of the recess, and sealing means including an annular body 21 of resilient material disposed within the recess so that it engages the rings 18, 19, and forms with the base 13 of the recess a fluidreceiving cavity 20 and an annular flange 22 of resilient material which extends radially from the body 21 between the rings 18, 19 into sealing contact with the other member 12. The ring body 21 has axial clearance in the recess and the flange 22 is axially movable between the rings 18, 19. In operation, fluid pressure from the high-pressure side of the seal-the left hand side in Fig. 1-is admitted to the cavity 20 past the adjacent backing ring 18 and causes the body 21 to be pressed axially against the end wall 15 of the recess and radially outwardly against the flange 22 and the backing ring 19 on the lowpressure side of the seal. The body 21 may be of natural or synthetic rubber, the flange 22 of polyurethane or P.T.F.E., and the rings 18 and 19 of nylon. In a modification, Fig. 2 (not shown), the body and flange are integral (26) and the backing rings (27, 28) are helically formed. The invention may be used as a shaft seal.
Patent GB-795656-A (GB)
Title: Improvements relating to processes and apparatus for cutting thin sheet metal by electrolytic etching
IPC: C25F3/14
Filed: 1954-07-30
Abstract: 795,656. Electrolytic etching. STEVENS, R. J. July 18, 1955 [July 30, 1954; July 30, 1954], Nos. 23362/57 and 23363/57. Divided out of 795,655. Class 41. A process for cutting thin sheet metal W to a predetermined contour through a mask, e.g. a resist applied at station II by printing, photography or sand blasting an applied coating of resist through a stencil, comprises feeding the sheet from a supply, e.g. a reel 80, to an electrolytic etching bath 83, removing the sheet after etching to a washing station V and through a drying station VI to a collecting station VII. The sheet W is conveyed from station III onwards by belts 88 ... 90 driven respectively by motors 95 ... 97, magnets M, Fig. 2, in guide tracks 91 ... 93 holding the sheet W against the belt 88 ... 90, soft rubber shields 110, 111 being disposed at each end of the bath 83. The tracks 91 ... 93 overlap each other to ensure smooth transference of the sheet W from belt to belt. The apparatus 104 ... 106 for supplying current to the sheet W may be as described in Specification 795,655, the resist and the backing, if any, on the sheet W having holes to permit contact by elements 104. The motors 95 ... 97 and the current supply to the apparatus 104 ... 106 is controlled by a clock 98 itself controlled through a connection 100f by a mechanical or photo-electric device 100 which reacts to holes in the sheet W or in the backing. In a modification, Fig. 11, the magnets M are omitted from the guide track 115, the sheet W being held against each belt 112 by two holding belts 113, 114, one at each side of the belt 112. Where magnets M are employed, product 86 and scrap 87 may be delivered in separate stacks at station VII by suitably arranging the magnets in the guide track. Alternatively, electromagnets may be employed and their energization controlled to provide the two stacks. In an alternative embodiment, the supply comprises a stack of metal sheets precoated with resist on one or both sides, each sheet being carried through the etching, washing, drying, collecting sequence by conveyers which run on rails and operate to lift and lower each sheet by a pneumatically or hydraulically operated piston at each stage, the sheet W being supported on the conveyers by magnetic or pneumatic means. One conveyer delivers the sheet to the etching apparatus, which may be as described in Specification 795,655, a second one delivers the sheet to the washing station through which the sheet is carried by an endless belt to a hot air drying station, and a third conveyer delivers the sheet, product and scrap, to be stacked separately. Instead of a resist, the mask may be a stencil separate from the work.
Patent GB-1081777-A (GB)
Title: Improvements in or relating to toy and model vehicles
Inventor: WETTON CECIL KENNETH
IPC: A63H17/26
Filed: 1965-06-01
Abstract: 1,081,777. Resilient suspension for toy vehicles. LESNEY PRODUCTS & CO. Ltd. May 20, 1966 [June 1, 1965], No. 23414/65. Heading A6S. The invention relates to toy or model vehicles having at least three ground wheel axles mounted in a chassis or base such that vertical movement, between upper and lower limits, is allowable. The figure is a perspective view of the chassis and associated parts of the toy. The axles, mounted in vertical slots cut into lugs are resiliently urged towards the lowest extremity by the suspension units 10 and 12. 10 may or may not be resilient and is used to bear upon the centre of two axles. 12 is a resilient member with one end bearing on the centre of piece 10 and the other on the middle of the third axle. The invention can be extended to give suspension to chassis with more than three axles by allowing one or two pieces 10 to bear on two or more axles and 12 to supply the resilient urge to all the axles.
Patent GB-1076239-A (GB)
Title: String frames for struck-string pianos
Inventor: ANDERSEN CLIFFORD WILLIE
IPC: G10C3/08
Filed: 1966-05-25
Abstract: 1,076,239. Pianos. WURLITZER CO. May 25, 1966, No. 23420/66. Heading G5J. The piano string frame shown has upper and lower bridge bars 110 formed integrally with the frame which define the vibrating length of the string and an auxiliary bar 112 provided with slots 116 into which he strings are pressed by a pressure agraffe (not shown) and which prevent the strings from moving laterally.
Patent GB-782746-A (GB)
Title: Improvements in or relating to fungicidal compositions
IPC: A01N33/18
Filed: 1954-08-12
Abstract: A fungicidal composition for treating grain, seeds and soil comprises 2-4-dinitrofluoro-benzene or 2-4-dinitro-5-bromofluorobenzene and a solid carrier, dispersant or diluent, e.g. kieselguhr, powdered calcium carbonate, calcium lime, clay, magnesium lime, mica, pumice, pyrophyllite, sulphur, talc, and soya bean, tobacco, walnut shell and wood flours.  The composition may also comprise a surface-active agent, a sticking agent, a humectant, an insecticide, a herbicide and a fertilizer. The composition may contain 25 per cent of 2-4-dinitrofluorobenzene.  The composition may be used dispersed in water.  It may be in the form of a dusting powder comprising 1 part by weight of 2-4-dinitrofluorobenzene and 100 to 1,000 parts of fuller's earth.  It may also be an oil-in-water emulsion obtained by dissolving 10 parts by weight of 2-4-dinitrofluorobenzene in 1000 parts of kerosene and dispersing the solution in 99,000 parts of water.ALSO:A fungicidal composition consists essentially of 2,4-dinitrofluorobenzene and a solid carrier or a solid dispersant and/or a surface-active agent such as a detergent, soap or other wetting agent.  Specified solid carriers are talc, pyrophyllite, Attaclay, kieselguhr, chalk, and specified dispersants are diatomaceous earth and mineral powders such as calcium carbonate which may also act as carriers and surface-active agents. Stickers and humectants, fungicides, insecticides, herbicides and fertilizers may also be incorporated.
Patent GB-1070980-A (GB)
Title: Method of and apparatus for the measurement of the physical characteristics of materials
IPC: G01N33/38
Filed: 1964-06-05
Abstract: 1,070,980. Testing refractory materials &c. D. BOENISCH. June 5, 1964 [June 7, 1963], No.23497/64. Heading G1S. In apparatus for testing the physical properties of materials e.g. refractory materials; there is provided a control apparatus, a pump 2, an airline 3 connected to a manometer 8 and a recording device 9, the air line B being individually connectable to testing devices I-IX (see Fig. 2, not shown) through lines 7a-7i, the resulting air pressures in line 3 being recorded graphically. At device I, for measuring the moisture content of tne material, a sample 18 is placed in the pan 17 of a balance 15, the other pan being balanced by air pressure from line 7a. The sample 18 is heated by an infrared lamp 19, subsequent drying of the sample unbalancing the balance causing a change in recorded air pressure. At device II, strength tests are carried out by compressing the sample by a piston 24, changes in air pressure being recorded by an oppositely moving piston 22 supported on a lever arm 23. At III, gas permeability is measured by measuring the throttling effect of air under pressure from line 7c as it is passed through a compacted sample. In device IV, the surface roughness of the sample is measured by subjecting the surface 35 of the sample to air under pressure from a reciprocating nozzle 35. At V, the mass plasticity of the sample is determined by compressing a standard sample using a piston 37 for a predetermined length of time. In device VI. the sample 43 is heated by a burner 42 to determine the "compressive stress", the expansion of the sample being transmitted to a movable plate 44, whose position is determined pneumatically. In device VIII, the expansion of the sample is measured by heating the sample with a burner 42 and transmitting the expansion through lever 48 to the air line 7g. At VIII, the bending of a specimen during heating is determined by traversing the under surface of the sample with a feeler 51, and transmitting the feeler movements to air line 7i. At X. the tensile strength of the heated sample is determined by loading the specimen using air pressure before heating, and measuring the change in pressure until the moment of fracture during heating.
Patent GB-1275539-A (GB)
Title: Machine for grinding or lapping mutually parallel surfaces of workpieces
Inventor: STAHLI ARTHUR WERNER
IPC: B24B37/10
Filed: 1971-04-19
Abstract: 1275539 Grinding A W STAHLI 19 April 1971 [13 March 1970] 23512/71 Heading B3D A machine for grinding or lapping mutually parallel surfaces of workpieces W comprises a grinding or lapping wheel 1 having a flat top working surface, a disconnectible drive for the rotation of the wheel, dressing rings 9 having centres spaced apart around a circle and each arranged to enclose the workpieces or a set thereof, each dressing ring being peripherally supported by freely rotatable rollers 10 mounted on aromatic members 11, pressure plates arranged to lie on workpieces inside the dressing rings, a stationary table 4 having one edge adjoining the periphery of the wheel and a smooth top surface 4a flush with the top working surface la of the wheel, and means for facilitating the turning of a set of workpieces which have been pushed on to the table by a dressing ring enclosing the set. The grinding or lapping wheel 1 is secured to a supporting plate 2 rotatable by an electric motor and is cooled by liquid. The table 4 is supported by screws 5 from the frame 3 of the machine and can be slightly raised and lowered by the screws so that the workpieces can slide easily from the wheel on to the table or vice versa. During lapping, the workpieces are pressed against the wheel by pressure rings and located within the dressing rings which are supported by the rollers 10 carried by the arcuate members 11 mounted in blocks 12 so that they can be swung to an upper position enabling the dressing rings to be moved to and from the table 4. The table is formed with a recess 13 for receiving a turning plate 14 which is supported therein by a part 16 carried by adjusting screws 17, 18 from the table, the part 16 being adjusted so that its upper surface is slightly above or below the surface 4a of the table. When the wheel 1 is stopped, the rollers 10 adjacent the table 4 are raised so that the adjacent dressing ring and workpieces can be slid from the wheel across table 4 on to the turning plate 14. The dressing ring and its pressure plate are removed and a ring 22 thinner than the workpieces placed on the plate 14. A second turning plate 15 is placed over the ring and workpieces and the assembly of plates and workpieces inverted. The plate 14 and ring 22 are removed and replaced by the dressing ring for sliding movement of the workpieces from the plate 15 across table 4 on to the wheel, the process being repeated for each of the dressing rings.
Patent GB-1494458-A (GB)
Title: Method and device for checking a storage battery
IPC: H02J7/00
Filed: 1976-06-08
Abstract: 1494458 Battery testing COMPAGNIE EUROPEENNE D'ACCUMULATEURS SA 8 June 1976 [24 June 1975] 23626/76 Heading G1U In an acceptance/reject test for a multicell battery, in turn, the rising voltage across a cell of the battery resulting from the application of a charging current, is compared with the average of the rising voltages across all of the cells of the battery. Three possibilities arise: in the first, the voltage B, Fig. 2, plotted against time, of the cell under test remains below the average voltage M B  of all the cells, and the cell (and hence the battery) is judged defective if the maximum difference M B -B exceeds a reference value; in the second Fig. 3, (not shown) the voltage C of the cell under test remains above the average voltage M C , and the cell is judged defective if the maximum difference C-M C  exceeds a reference, and in the third, Fig. 4, the voltage D of the cell under test crosses the average voltage MD, and the cell is judged defective if the sum of the maximum difference D-M D  below the cross-over point and the maximum difference M D -D above the cross-over point exceeds a reference. An apparatus Fig. 5, (not shown) is outlined for performing the above test. Either a continuous examination of the voltages in question can be made, in which case the measurements of the various maxima required for the test criteria are evaluated accurately, or spot measurements can be made, for example by making measurements after 1 second and 5 seconds, from which the required maxima can be estimated.
Patent GB-735337-A (GB)
Title: A fountain installation and an electric circuit for operating same
IPC: A63J17/00
Filed: 1953-08-27
Abstract: 735,337. Fountains. PRZYSTAWIK, O. Aug. 27, 1953 [Sept. 3, 1952], No. 23671/53. Class 69 (1). [Also in Group XXXVII] In a fountain installation with a plurality of nozzles fed from pumps driven by electric motors, each motor circuit is associated with relay controlled switches which can be, operated individually or in any desired group. The motor circuits are described applied to the fountain installation forming the subject-matter of Specification 733,396, the circuit for one of the three-phase slip-ring pump motors Mo being shown in the Figure. With this circuit, to operate the motor Mo at 25 per cent maximum speed, the regulator B is set at its highest resistance and the switches L and M are closed. The button D is then pressed and the contacts a<SP>1</SP> of switch A close causing the motor to start and the connected pump to produce a low jet of water. If it is desired to keep the motor running when button D is released, the switch G is closed prior to pressing button D. To cause the motor to run at its maximum speed and thus increase the height of the water jet, the switch P is closed and the button D<SP>1</SP>, operating the regulator short-circuiting switch C, pressed. To keep the motor running at full speed, the switch G<SP>1</SP> is closed prior to pressing button D<SP>1</SP>. The relays of switches A and C are de-energized by stop-buttons E and E<SP>1</SP> respectively. The regulator of each motor may be adjusted to give rising jets of water. When a large number of pump motors are incorporated in the installation, the motors may be operated in groups by closing the switches K, H, F of individual motors and operating the groups of motors by means of switches O, N, M. For example, closing the switch M causes operation of all motors having their switches F closed. Similarly the rotors of groups of motors may be short-circuited simultaneously by closing the switches Kl, H<SP>1</SP>, Fl of individual motors and short-circuiting the rotors of groups by closing switches V, Q, P. The arrangement of the various switches on a control desk is also described, the switches and push-buttons being on the table of the desk and the handles of the regulators B being mounted on the front panel of the desk.