baber/WOPTO huggingface dataset:
Patent GB-1402655-A (GB)
Title: Hydraulic jack
IPC: B21F/
Filed: 1972-09-14
Abstract: 1402655 Tensioning wires &c. MANUFACTURAS DE ACERO Y CAUCHO SA 14 Sept 1972 [14 Sept 1971] 42649/72 Heading F2G Wires, cables, rods or the like 108 are tensioned and then anchored in an anchoring plate 107 by a jack comprising a striker plate 112 for driving wedges 110 against the wires &c. 108 in bores in the anchoring plate 107, and a tubular housing 101 within which a front cylinder 114 is drivable to strike the striker plate 112 and a rear cylinder 123 is drivable to move wire gripping means 132, 135 so as to tension the wires. As shown, the front and rear cylinders are driven by admitting hydraulic fluid through ducts 120, 127, 129 into annular chambers 119, 128, 120. The wires 108 are passed through the anchor plate 107, with the wedges 110 in position, and also through the striker plate 112. A bearing member 111 is located around the anchoring state 107 and the wire ends are threaded into bores 143, 134 in an unclamping plate 142 and gripping block 132 and through sleeves 144, 139 surrounded by springs 147, 141. The sleeves 144 urge gripping wedges 135 away from their seats 134. Fluid is admitted through the duct 127 into the chamber 128 to drive the rear cylinder 123 away from plate 107. The springs 147 urge the unclamping plate 142 forwardly of the block 132, withdrawing the sleeves 144 from contact with the wedges 135 which now grip the wires 108 under the influence of the spring sleeves 139. Thus the wires 108 are tensioned to the required extent. Fluid is then admitted to the chamber 119 through the duct 120 driving the front cylinder 114 against an annular member 113 which strikes the striker plate 112 to anchor the wires 108 by the wedges 110. Springs 121 then return the member 113 and cylinder 114. Fluid is admitted through the duct 129 to chamber 130. The rear cylinder 123 is still connected to the wires 108 so the housing 101 moves away from the anchoring plate 107 until bolts 149 abut the unclamping plate 142 so that the sleeves 144 move the wedges 135 away from the seats 134 to release the wires 108. The jack can then be removed leaving the tensioned wires anchored to the plate 107. In another embodiment, the gripping wedges (17) (Figs. 1, 2, 3, not shown) may be released by moving back the plate (21) on which they are mounted.
Patent GB-939804-A (GB)
Title: Improvements in a photographic composing machine
IPC: B41B17/16
Filed: 1959-12-15
Abstract: 939,804. Photographic type-compoiing. KABUSHIKI KAISHA MORISAWA SHASHIN SHOKUJIKI SEISAKUSHO. Dec. 15, 1959, No.42681/59. Class 98 (1). A photographic type-composing machine comprises a font plate from which characters are photographed, a control device having control elements whose heights represent the widths of the corresponding characters on the font plate, a ratchet drivable in one direction by a pawl, an adjustable stop to limit the movement of the pawl relative to the ratchet so as to control the extent of the driving movement of the pawl, means for adjusting the position of the stop in accordance with the height of the control element for the selected character, and a gearbox coupling the ratchet to a movable magazine whereby regular spacing between characters in a line is obtained, the transmission ratio of the gearbox being changed to alter this spacing. As shown. a character font plate 21 bearing upper and lower case symbols in separate rows is mounted on a double carriage movable along rails 22, 23 so that any chosen character may be positioned for projection by a lens in the tube 88 on to a film in a camera magazine 83. On depressing a handle 36 the plate 21 is latched by the action of a cam 38 on a lever 29 which engages a rack 26 on the font plate, the camera shutter is opened to record the chosen character, and a rod 50 is moved into contact with a pin 27 associated with the chosen character and of a height appropriate to the character width. The extent of the movement of the rod transmitted through a parallel rod 41, bellcrank lever 39, and link 44 controls the angle through which a stop plate 45 for a pair of driving pawls 56 is moved clockwise about a ratchet wheel 46. On further depression of the handle 36 lever 36<SP>1</SP> via link 53, bell crank lever 51, and link 54 moves clockwise a bell crank lever 55 carrying the driving pawls 56 idly round the ratchet wheel 46 into engagement with the stop plate 45. On releasing the handle 36, the parts are spring-returned to the Fig. 1 position whereby the pawls 56 drive the ratchet wheel 46. A gearbox (Fig. 6, not shown) is arranged between the shaft of the wheel 46 and a rack drive for the magazine carriage, the chosen gear ratio being selected by levers 62 which move idler gears into engagement with the driven and driving gears which are of stepped form. By rotating the knob 84 the film may be wound up for interline spacing.
Patent GB-1020938-A (GB)
Title: Clips for holding a filter in a frame
IPC: B01D25/176
Filed: 1964-10-22
Abstract: 1,020,938. Filter mounting means. MINE SAFETY APPLIANCES. Oct. 22, 1964 [Oct. 31, 1963], No. 43094/64. Heading BIT. [Also in Division E2] A clip for holding a filter in a frame having an inwardly projecting rear flange comprises a resilient strip having front and rear ends and provided near its front end with an inwardly projecting tongue 11 for hooking over the front edge of the filter the strip being provided near its rear end with an inward projection 12 for hooking over the back edge of the filter the strip having behind said projection a transverse outwardly opening recess 13 to receive the frame rear flange and the portion of the strip between its recess and rear end being inclined inwardly and rearwardly. In the construction shown the recess is formed by bending the strip into an inwardly projecting loop and the loop also provides the projection 12. Two of the clips are used for holding the filter in the frame as shown in Fig. 2 and the portion 14 enables the clip to be engaged with the frame by pushing the filter in the direction of the arrow. Each clip is also provided with a portion 17 in front of the tongue 11 which terminates in an inwardly bent portion 18 for hooking over the adjoining front edge of a pre-filter 16.
Patent GB-1520520-A (GB)
Title: Apparatus for cleaning and cooling compressed air
IPC: B04C9/00
Filed: 1975-10-21
Abstract: 1520520 Gas cleaner and cooler STRATOFLEX INC 21 Oct 1975 43236/75 Heading B2P  An apparatus for cleaning hot compressed air comprises a housing 21, Fig. 1, defining an air-swirl chamber 32, a contaminant drain opening 49, 50 formed in the housing at a lower side of the swirl chamber, an inlet 42 for directing the air to be cleaned tangentially into the swirl chamber, a tubular member 24 coaxially mounted within the housing to provide an exit passage for relatively clean air leaving the swirl chamber and extending downwardly from a higher side of the swirl chamber past the air inlet 42 to a location adjacent to the drain opening 49, 50 and valve means 51, 52 connected to the drain opening for normally closing the latter and causing contaminants and moisture to collect therein. The compressed air to be cleaned is supplied from a compressor to a T-fitting 38 equipped with a relief valve 41 and associated with inlet 42. The drain opening 49, 50 is formed in a closure member 23 and consists of an off-centre vertical passageway 49 and a lateral threaded hole 50 into which is screwed a nipple 51 of an automatic drain valve 52. The valve 52 may be of the normally closed type, Fig. 16 (not shown) when the compressor is used for operating air-brakes on automotive equipment, Fig. 18 (not shown), and is continuously driven by the engine thereof. Alternatively, the valve may be of the normally open type, Fig. 17 (not shown), when the compressor is installed in service stations &c and is intermittently started and shut down depending on the pressure of its associated compressed air reservoir. The tubular member 24 which is in the form of a funnel is mounted in the housing 21 between the swirl chamber and a cooling chamber 33 which is surrounded by cooling fins 95 and in which the relatively cleaned compressed air travels through a relatively thin annular passageway provided between the wall of the housing 21 and a hollow air guide member 62 which has a cylindrical side wall and an upper closure 63 both made of plastics or hard-pressed or impregnated fibre material and which has its lower open end supported on a perforated disc 67 mounted on the member 24. The cooling chamber 33 is surmounted by a filter 75 confined between perforated metallic discs 76 and 77 and seated by a spring 80 against a retainer ring 78 in a housing 74 integrally formed with a closure 22 of the housing 21. The lower end of the housing 74 is supported by a spring 90 on top of the closure 63 of the air guide member 62. The closure 22 has a clean air exit passage 82 which communicates via a check valve 83 with compressed air reservoirs. An air-permeable dessicator cartridge (not shown) may be mounted between the filter 75 and the closure 22 to remove any traces of moisture left in the compressed air. In modifications, the swirl chamber may be also surrounded by cooling fins or the whole of the chamber or its lowermost portion containing the closure member 23 may be encased in a thermally insulated jacket.
Patent GB-959687-A (GB)
Title: Improvements in electron beam oscillators
Inventor: BASS JOHN CHARLES
IPC: H01J25/49
Filed: 1961-12-04
Abstract: 959,687. Space-change wave tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 6, 1962 [Dec. 4, 1961], No. 43292/61. Heading HID. An electron beam microwave oscillator tube comprises a resonator 7, a D.C. pump electrode system 9, a reflector electrode 11 and means for setting up an axial magnetic field. The resonator 7 may be a double-ridged cavity resonator as shown, a simple rectangular or circular waveguide or a condenser plate system and the D.C. pump system a periodic quadrupole array, a twisted quadrupole structure formed by a four-start helix as in Specification 888,913, a periodic slot structure as in Specification 959,686, or a series of electrostatic rings as in Specification 959,685. A strip beam may be used. The output is taken from the resonator. The magnetic field system may comprise a screening tube in the vicinity of the reflector or as shown, it comprises ring magnets 31, 33 with end polepieces 35, 39 and a common annular central polepiece 37, the system producing a stronger field in the region of resonator 7 than in the D.C. pump section. The tube is in two parts sealed to the annular polepiece 37, but a tube with a single continuous envelope waisted at the centre may be used.
Patent GB-1096147-A (GB)
Title: Retaining device
IPC: B60D1/60
Filed: 1964-10-26
Abstract: 1,096,147. Two-part couplings. M. J. RAWLINGS. Oct. 21, 1965 [Oct. 26, 1964], No. 43540/64. Heading H2E. [Also in Divisions B7 and E2] A retaining device attached to a caravan draw bar (as described) or to a motor vehicle tow bar (see Division B7), provides for the retention of an electrical caravan plug (not shown) having five or seven pins, only when the caravan is uncoupled from the motor vehicle, and comprises a cylindrical retaining member 11 extending from a base 10 and having an inner surface of foam rubber or sponge 17 frictionally engageable by the plug, a cylindrical guard extending from the base 10. The base 10 is rectangular and is curved at its ends so that two slots (15), Fig. 2 (not shown), are formed through which dirt and water can pass. The member 11 has inverted V-shaped notches 11A for the same purpose.
Patent GB-1282511-A (GB)
Title: An optical coupling arrangement for fibrous light guide elements
Inventor: UCHIDA TEIJI
IPC: G02B6/42
Filed: 1969-09-03
Abstract: 1282511 Coupling of optical fibres NIPPON SELFOC CO Ltd 3 Sept 1969 [5 Sept 1968] 43570/69 Heading G2J Converging optical fibre light guides 1, 2 having a refractive index variation in a transverse cross section in accordance with the equation n = n 0  (1-2/b<SP>2</SP> . r<SP>2</SP>), where n o  is the value at the axis and n the value at a distance r from the axis and where b is a constant, may be optically coupled as shown to provide a mode matched transmission path for laser beams by using a small lens-like similar guide portion 3 having carefully chosen dimensions and spacing relative to the main guides 1, 2. Design details are given and included in the claims.
Patent GB-1326976-A (GB)
Title: Error correction
IPC: H04L1/00
Filed: 1971-09-20
Abstract: 1326976 Error correction systems INTERNATIONAL BUSINESS MACHINES CORP 20 Sept 1971 [18 Dec 1970] 43660/71 Heading G4A A data block of k bytes D, each of b bits is supplied to an encoder which adds check bytes C1, C2 related to the data in accordance with the equations:- where I is the identity element and T, T<SP>2</SP> ... T<SP>k-1</SP> are distinct non-zero elements of Galois field (2<SP>b</SP>), and a decoder, Fig. 2, computes error signals indicating the bits in error in each of 2 erroneous bytes indicated by pointer signals generated by the decoder, and supplies the error signals to a circuit for correcting the erroneous bytes. Decoder-The received data bytes D<SP>1</SP> and check bytes C1<SP>1</SP>, C2<SP>1</SP> are supplied as shown to exclusive OR syndrome byte S1 and S2 computers 10, 12 and pointer signals P indicating the erroneous bytes are generated, for example, by byte parity checking circuits. The syndromes S1, S2 and pointers P are examined by a control signal generator 20 which produces signals I and J indicating the identity of the first and second of two erroneous bytes respectively, signals d indicating the distance (in bytes) between the identified erroneous bytes I, J, and various other signals indicating the number of non-zero syndromes S1, S2 non-zero pointers P, and whether or not single byte errors or uncorrectable multiple errors exist. As as example of the manner in which the error signals produced by computer 18 are used, if two data bytes D i <SP>1</SP>, D j <SP>1</SP> are in error, I i =1, J j =1 and d j-i =1, and S1 and S2 are functions of the error patterns e l , e j  in bytes D i <SP>1</SP>, D j <SP>1</SP>; computer 18 generates a byte S4 algebraically equivalent to e j  which is supplied to a module 2 adder 26 which, since S1=e i #e j , produces S5=e i ; finally the data bytes D<SP>1</SP> are exclusive OR'ed with e i , e j  in corrector 22 to produce the corrected data bytes.
Patent GB-1196753-A (GB)
Title: Improvements in or relating to Facsimile Systems.
IPC: H04N1/403
Filed: 1967-09-28
Abstract: 1,196,753. Facsimile systems. SOUTHERN PACIFIC CO. 28 Sept., 1967 [3 Oct., 1966], No. 44288/67. Heading H4F. To improve the resolution in line scanned facsimile systems (i.e. effectively reduce the time bandwidth for a given resolution) the scanning head contains three photo-cells, the first of which is arranged to scan the lower half of the preceding scan line and the second and third of which are arranged to scan the upper and lower half respectively of the present scan line, a mask having three openings being used if necessary. By means of clipping circuits each photo-cell produces a first output signal when it views black and a second output signal when it views white. The photo-cells are connected directly and via inverters to logic means which produce a black representative signal if either (1) the second and third photo-cell outputs are black, or (2) the second and third photo-cell outputs are black and the first photo-cell output is white, or alternatively, the logic means produce a white representative signal if either (1) the second and third photo-cell outputs are white or (2) the second and third photo-cell outputs are white, and the first photo-cell output is black. The system may include two logic means, one for producing black representative signal and the other for producing white representative signals. The arrangement is such that if a black element occurs primarily in one scanning line and partially in an adjacent line it is assigned to the line in which it belongs, if it occurs equally in two adjacent lines it is printed in only one scan line. Further since each photocell sees an element smaller than the size of the scan line, thin information lines are reproduced satisfactorily. Logic circuits are described for providing a black signal and a white signal, Figs. 3 and 4 (not shown).
Patent GB-1280819-A (GB)
Title: Improvements in folding boxes for frangible articles
Inventor: BUCHMAN ARTHUR ARIA
IPC: B65D5/50
Filed: 1968-09-18
Abstract: 1280819 Cartons WILLIAM W CLELAND Ltd 10 Sept 1969 [18 Sept 1968] 44333/68 Heading B8P A carton having a " crash end " formed from end flaps 6, 7, and 8, 9 and having portions 10, 12 secured by adhesive to adjacent flaps has at, at least one end, cuts 14 or slots or V-shapedcut outs which facilitate insertion of an Easter egg or electric light bulb after both ends of the carton have been erected. By squeezing the carton to a diamond shape (Fig. 3) the egg or bulb can be forced past the flexible flaps 8, 9 without straining the glued corners. Additional cuts can be made in the flaps 8, 9 to increase their flexibility.
Patent GB-1092082-A (GB)
Title: Diaper with hydrophobic yarns
Inventor: HOLLIDAY WALTER THOMAS
IPC: A61F13/15
Filed: 1964-10-30
Abstract: The material for a baby's diaper comprises a central panel woven with hydrophobic (synthetic) warp yarn predominating on one side 14 and hydrophilic (cotton or rayon) yarn predominating on the other side. The weave for the central panel may be birdseye sateen, or twill.  On each side of the central panel is a panel woven entirely of hydrophilic yarn; the weave may be plain.  The material may have an additional layer woven of hydrophilic yarn.
Patent GB-1235548-A (GB)
Title: Improvements in and relating to the fireproofing of polyamides
IPC: D01F9/30
Filed: 1968-09-20
Abstract: 1,235,548. Treating polyamides. MONSANTO CO. 20 Sept., 1968 [22 Sept., 1967], No. 44718/68. Heading B5B. [Also in Divisions C1 and C3] Aromatic polyamides are rendered fireproof by heating with sulphur at a temperature below the softening point but sufficient for reaction with the sulphur. Numerous polyamides are specified. The polymer may be treated in the form of a shaped article, e.g. fibre, fabric, paper or foam. The articles may be immersed in molten sulphur. In Examples 3, 4 and 6, fibres are treated by immersion in molten sulphur at 150‹ C. under nitrogen. The temperature is then raised to 380‹ C. and held there for 2 hours and excess sulphur then removed.
Patent GB-1186258-A (GB)
Title: Hydraulically Operated Diaphragm Pumps with Delivery Flow Control.
IPC: F04B43/067
Filed: 1967-10-02
Abstract: 1,186,258. Reciprocating pumps. LEWA HERBERT OTT. Oct. 2, 1967 [Oct. 4, 1966], No. 44767/67. Heading F1A. In a hydraulically actuated pump comprising a pumping chamber 10 separated from an actuating chamber 7 by a diaphragm, an actuating piston 2 is reciprocated in chamber 7, and the delivery volume of the pump is controlled by opening a valve 9 in a by-pass 8 between the actuating chamber 7 and the reservoir 3, by holding a make-up valve 5 or a pressure-relief valve 6 open, or by closing a valve (11, Fig.3 not shown), in the pump delivery line so that the pressurerelief valve opens during the pressure stroke of piston 2. The valves are electromagnetically actuated in response to pulses from a flowmeter in a line supplied by the pump. Two sets of contacts are operated by the pump drive at the bottom dead centre position of piston 2 and at a point towards the end of the suction stroke, respectively. The contacts act to connect a pulse store, fed by a pulse former operated by the flowmeter, to a pulse generator and thyristor-controlled bridge network, which control the electromagnet of the valve for controlling the pump delivery Fig. 5 (not shown). If there is a pulse in the pulse store when the contact at bottom dead centre is made, valves 9, 5 or 6 is closed or valve (11) is opened for the pump to operate. If there is not a pulse in the store when the contact at bottom dead centre is made, i. e. no pulse has come from the flowmeter during the time interval between the contact towards the end of the suction stroke and the contact at bottom dead centre, then valve 9, 5 or 6 is opened or valve (11) closed, to prevent the next delivery stroke. Since the second contact occurs towards the end of the suction stroke of the piston 2, the pump always carries out a suction stroke following its delivery stroke. A plurality of pumps may be connected in parallel with a common drive, and may be controlled individually. In Fig. 6 (not shown), six pumps are connected in parallel and two of them are controlled individually by flowmeters in different streams.
Patent GB-1126383-A (GB)
Title: Improvements in or relating to liquid discharge devices
IPC: G05D9/02
Filed: 1965-10-25
Abstract: 1,126,383. Valves. C. A. NORGREN CO. 25 Oct., 1965 [30 Aug., 1965], No. 45062/65. Heading F2V. [Also in Divisions F4 and G3] A device for separating liquid from a pressurized gas line comprises a housing (12, Fig. 1, not shown) adapted to be fitted in a line and a container (14) for collecting the liquid that is separated from the gas as a result of the latter having to flow from the inlet (20) to outlet (22) via deflectors (26, 28) and filter (30). Housing (14) is provided with a screen 38 that encloses a drain valve 40 and a float 42 (Fig. 2). When the line is not in use, the drain valve member 92 is urged away from its seat 82 by spring 140 acting on piston 58. When the line is pressurized, gas begins to escape to outlet 78 via ports 54 and the annular space between the seat 82 and hollow valve stem 90. The latter space causes a backpressure below piston 58 which moves the latter upwardly. Some of the air in the chamber 62 above the piston is able to escape via restricted orifice 110 but, when the valve 92 has seated, a plug 118 seats over orifice 110 to prevent further escape; the air in chamber 62 is thus pressurized and with spring 140 tends to balance the pressure below the piston. When float 42 reaches a predetermined level 150, it unseats a diaphragm 100 from the top of a tube 96 to admit gas at line pressure to chamber 62 via passage 138. The piston is thereby depressed to open the drain valve. When the float has fallen to reseat diaphragm 100, gas escapes from chamber 62 through orifice 110 until the pressure in chamber 62 has fallen sufficiently to allow the piston to rise under the action of the pressure on its lower surface. If the system pressure rises while the drain valve is closed, the seat 82 allows further upward movement of piston 58 to cause a rod 120 attached to plug 118 to unseat diaphragm 100 to admit gas at the new pressure to chamber 62 until the piston is depressed to its original position. A further rod 112 attached to plug 118 extends into outlet 78 to allow manual actuation. The float 42 has only to operate against the pressure difference between the line and chamber 62 acting over the area of tube 96. As shown, the float comprises a cap 104 having an annular central portion 160 received with clearance over an annular portion 168 of a cup-like member 154 pressed on to the cap at 170. Annular portion 160 has longitudinal guide ribs 162 and portion 168 has longitudinal guide ribs 172 which serve to guide movement of the float. Gas, which may contain liquid, is free to enter the float via the clearance between portions 160, 168, the liquid being purged by the gas when the system is shut down. The piston 58 may be replaced by a diaphragm and spring 140 may be omitted or replaced by weights.