baber/WOPTO huggingface dataset:
Patent GB-1302027-A (GB)
IPC: F16L25/02
Filed: 1969-03-07
Abstract: 1302027 Pipe couplings METAL & PIPELINE ENDURANCE Ltd and H ARMSTRONG 29 Jan 1970 [7 March 1969] 12306/69 Heading F2G An electrically insulating coupling between pipe hubs 10, 11 having flanges 12, 13 at their ends with an insulating gasket 17 between them, comprises a surrounding segmental ring 24 having an annular recess 25 with side faces 27, 28 inclined to a plane normal to the coupling axis, insulating material 26 lying in the bottom of the recess and at least one of the side faces 27 of the recess being spaced from its adjacent flange by an annular insulation gasket 29, two ring segments 24 being drawn towards each other, e.g. by bolts (37), Fig. 1 (not shown), to clamp the joint. As shown, both of the recess side faces 27, 28 abut insulating gaskets 29, 32. Recesses 18 in the adjacent flange faces contain O- rings, and the inner edges of the flange faces are filled with dielectric sealant 57. Terminals (39, 40), Fig. 1 (not shown), are provided on the hubs 10, 11 to permit electrical testing of the insulation. When the coupling has been assembled, a plate (56) is welded between flanges (36) at the ends of the ring segments 24 and may be inscribed with service information. In one modification, the backs (43, 44), Fig. 3 (not shown), of the hub flanges adjacent the inclined side jaws 27, 28 of the ring recess are normal to the coupling axis, and annular insulating gaskets (45, 46) of wedge-shaped cross-section lie between the parts. Axially projecting retaining ribs (49) on the outer peripheries of the gaskets lodge in recesses around the flange edges to prevent inward movement of the gaskets. In a further modification, the rear face (50), Fig. 4 (not shown), of the flange abutting the gasket (60) is normal to the coupling axis, the co-operating face of the recess is inclined, and the other side face of the recess and the back of the other flange engage directly along inclined surfaces.
Patent GB-1303302-A (GB)
IPC: B01D46/10
Filed: 1970-02-13
Abstract: 1303302 Air filter R C M EQUIPMENT Ltd 29 April 1971 [13 Feb 1970] 7061/70 Heading B1T [Also in Division E2] A rectangular frame-like housing adapted to form part of a ventilation duct comprises an internal flange 24, 25 against which one or more filter panels 22, 23 are pressed by a clamping mechanism connected to a door 16 on one side of the housing, so that closing the door clamps the panels into place and opening the door releases them. With the door open panels 22, 23 may be withdrawn and replaced. As shown both panels are clamped by a bar 26 pivotally mounted on links 27-29 on the floor of the housing and a similar bar inside the housing top, both bars being coupled to hinged door 16 by springs or cords 30. The panels are clamped by the door 16 pushing directly on the ends of the bars and released by the door pulling on the bars by means of springs or cords 30. The door 16 is held in its closed position by screws 19. Two doors 16 at opposite ends of the housing could each be coupled to a clamping mechanism which secures one respective filter panel. The peripheries of panels 22, 23 and/or flanges 24, 25 may be covered with foamed rubber or plastics seals.
Patent GB-1307845-A (GB)
Title: Reactor
IPC: B01J8/00
Filed: 1969-05-28
Abstract: 1307845 Controlling chemical reactions; catalytic reactors IMPERIAL CHEMICAL INDUSTRIES Ltd 4 May 1970 [28 May 1969] 26926/69 Headings B1X and B1F A reactor for the production of ammonia or methanol comprises an outer pressure resistant shell 10 and an inner structure which comprises two coaxial cylinders 31, 33 which define a catalyst bed space 42. The cylinder 33 has port holes 43 and an upper portion of greater diameter which houses a heat exchanger 38 supported by tube 36. In practice synthesis gas is passed in at top and bottom inlets 22, 14. The gas entering at 14 passes along side space 34 and through the heat exchangers 38, at the bottom of which it mixes with the gas entering via 22. The mixture then divides at 39 and 41 and passes through the catalyst bed and remixes in the region of perforated annular chamber 44. The mixture then passes out of the bed into tube 45 of the heat exchanger via the ports 43 and finally emerges at outlet 24. Spargers may be housed at 46 for introduction of cooling gases. Catalyst may be discharged via 18 when exhausted.
Patent GB-1318283-A (GB)
Title: Transmission mechanism
IPC: F16H3/14
Filed: 1970-06-30
Abstract: 1318283 Reversing gearing HOOVER Ltd 30 June 1970 [1 July 1969] 31625/70 Heading F2D A reversing transmission D (e.g., in a vacuum cleaner A or a lawn mower or a wheel barrow) comprises an input shaft 102 (e.g., belt driven at 34 from an electric motor 14 driving a fan 18 and belt driving an agitator brush 30) drivingly mounting a part 40 axially slidable to engage flat friction members 110, 112 otherwise freely rotatable on the shaft 102, and each drivingly connected to a train of gears 144, 156, 158, 182 or 146, 164, 170, 172, 184 (e.g. spur, helical or friction gears) to provide forward and reverse drive to an output shaft 178 (e.g. parallel to the shaft 102). The transmission D may be housed in a casing comprising three aluminium castings JKL bolted together, the outer casings JL each housing one of the gear trains. The gears 144, 146 may be of aluminium and the other gears of polyamide incorporating graphite. The shaft 102 may drive two rollers 114, 116 engaging the ground. A construction of the clutch part 40 is described, Figs. 8 to 13 (not shown). It may be controlled by a crank 56 pivoted at 60 by a Bowden cable E controlled by pulling and pushing a handle 44 causing it to move relative to a column C.
Patent GB-1321602-A (GB)
Title: Electric heaters
IPC: G05D23/19
Filed: 1969-04-01
Abstract: 1321602 Automatic temperature control systems L R BLAKE 30 June 1970 [1 April 1969 17 April 1969] 17124/69 and 19553/69 Heading G3R An electric heater operable from an electric supply having time determined payment rates i.e. a low charge per unit for night consumption and a high charge for day usage, is controlled by a thermostatic means with a set point that is adjusted to a lower temperature value or values during a higher charge period or periods. The thermostatic means may comprise a plurality of thermostats one for each period and arranged so that one can be switched into circuit during the appropriate time. Alternatively a single thermostat having a biasing means e.g. a set point adjusting heater (14), Fig. 1 (not shown) or a mechanical arrangement (52), Fig. 8 (not shown) may be alternatively employed. The biasing heater may be supplied from a step down voltage transformer (17). A number of biasing heaters may be supplied from a common line. The arrangement is stated to be particularly suitable for a "night and day" (white meter) type of tariff which incorporates a time switch 12 which may be utilized to energize the biasing means. The arrangement may be utilized in conjunction with a storage heating installation having either individual block storage heaters or a central storage medium for space heating and/or hot water. A number of methods of biasing the thermostat are mentioned in the Specification.
Patent GB-1324123-A (GB)
Title: Device for recognising characters and structures
IPC: G06V30/182
Filed: 1970-12-23
Abstract: 1324123 Character recognition systems KOMBINAT ROBOTRON VEB 19 Jan 1971 61128/70 Heading G4R In a character recognition system the degree of openness of the character is determined. This is defined as the ratio of the length a of the character opening to the arc length s, Fig. 2. The openness is determined in each of four directions Z1-Z4, Fig. 5. The openness may have more than one value in any one direction; thus in direction Z2, Fig. 5, there is one openness value for the upper segment of the 5 and one for the lower segment. The system also determines whether the segment occupies the entire width of the character in the viewing direction (e.g. as in directions Z1, Z3) or is to left or right of the viewing direction. It is also determined whether the segment is concave or convex in the viewing direction. Signals representing the values of these various parameters are passed to recognition circuitry (not described). The character is sensed by, for example, a matrix or line of photo-cells or a scanning cathode-ray tube and photomultipliers. The resulting signals are placed in a store comprising a stack of nine matrices each of n Î m cells. When a black part of the character is sensed a mark is stored in the corresponding cell x, y of one matrix. A mark is also recorded on each of the other matrices but in cells x + r, y + s, r and s being different for each matrix. Thus each matrix finally stores the character in 9 spatially displaced forms so that selection of a single read-out line causes read out of a selected bit cell x, y of each matrix, providing a signal equivalent to read out of cell x, y of the first matrix and of the 8 cells surrounding it. The circuitry described subsequently searches for a starting point of the character and thereafter follows the outline of the stored character. Small gaps are ignored, large gaps being assumed to indicate the end of a character or segment of a character. The end position co-ordinates are stored and used to calculate the open length a, Fig. 2. The value and the signals read from the store pass to circuits employing counters, threshold units, gates, &c., to provide the parameter values referred to above.
Patent GB-1332373-A (GB)
Title: Hairpiece
IPC: A41G3/00
Filed: 1972-06-30
Abstract: 1332373 Hairpieces R PRESCIUTTI 30 June 1972 [8 June 1971] 19426/71 Heading A4V A method of producing a hairpiece 10 comprises forming a heatable cast (1) Fig.1, (not shown), of the shape of the head; forming a flexible contoured plastics material hairpiece base (3) on the cast, the base including a peripheral rim 4 overlapping a marginal portion of the remainder of the base; passing hairs 5 through the peripheral rim and through the remainder of the base; forming a flexible contoured plastics material liner 8 on the cast; positioning the liner in registration with the base with the ends of the hairs located therebetween; and heat fixing the liner to the base to envelop and secure each end of hair. As described the cast (1) is formed from a plaster cast of the head. The hairpiece base is formed by placing a fabric mesh (2) Fig.2 (not shown), in liquid plastics applied over the cast (1). After curing in a heat source a further coat of liquid plastics is applied. The inner surface (7) of the hairpiece base is coated with liquid plastics to act as a primer for the liner. The liquid plastics primer may include glass fibre. The liner is placed in register with the inner surface (7) and the liner and base are mounted on the cast (1) and pressed into a bed of flexible foamed material. The hairpiece is removed from the cast and submitted to infrared heat to heat fix the liner to the hairpiece base. The hairpiece is replaced on the cast and further pressure applied. The hairpiece base material may be coloured to match the wearer's skin. The base and liner may be provided with ventilation holes.
Patent GB-1333445-A (GB)
Title: Override dual control device for aircraft
IPC: B64C13/12
Filed: 1971-10-12
Abstract: 1333445 Dual control system for aircraft E HARTE 12 Oct 1971 47494/71 Heading B7G A manual dual control system for an aircraft comprises a pair of actuators, a control wheel for each actuator and a telescoping connection between one of the actuators and one control wheel 20, there being a yieldable member interposed in the connection yielding under sufficient force exerted by an operator on the other control wheel 20 so that the said one actuator is rendered inoperative. The yieldable member may be a spring 36 acting between a thrust plate 38 mounted on a hollow shaft 40 rigid with the control wheel 20 and a spring back-up plate 34 fixedly mounted on shaft 32 rigid with control column 26. A tooth 44 on hub 42 of the control wheel engages a recess 46 in the plate 34 so that the column 26 can be rotated or moved axially by means of the control wheel, the spring 36 being such as not to yield under the force required for normal axial movement of the column. However should the pilot operating the wheel 20 panic and hold the wheel back, the operator of the other control wheel (12), Fig. 1 (not shown), can, by exerting a force sufficient to overcome the spring 36, draw the control column 26 away from the wheel 20, also releasing the tooth 44, so that the wheel 20 no longer has any effect on the aircraft. The column 26 and the shaft 40 can be locked together by means of a screw 50 when dual control override is not required.
Patent GB-1336533-A (GB)
Title: Record player
IPC: G11B17/08
Filed: 1972-04-07
Abstract: 1336533 Gramophones ONKYO KK 7 April 1972 16229/72 Heading G5R Record-sensing devices 4a, 4b, 4c, each comprising a displaceable rod 8, are carried by a turntable 2 at different distances from its centre, so that the diameter of a record 5 placed on the turntable 2 is indicated by the number of rods 8 displaced, the displaced rods being detected, Fig. 3, by associated photo-electric detectors 7a, 7b, 7c which send the resulting pulse signals to a logic circuit (13), Fig. 4 (not shown), which controls the placing of the pick-up 19 accordingly.
Patent GB-1343651-A (GB)
Title: Clips
IPC: F16B2/24
Filed: 1971-10-30
Abstract: 1343651 Clips P DINGLEY 20 Oct 1972 [30 Oct 1971] 50539/71 Heading E2B A clip comprises an elongate resilient flat strip member formed into a part-cylindrical, substantially closed loop 11 the free end portions 13 of the member being directed generally radially inwardly and being movable from a first position at which they abut or are closely adjacent one another and a second position in which they are spaced apart, the resilience of the member being such that the portions 13 are biassed into their first position. In modifications, the portions 13 overlap so that the free ends thereof are spaced apart; cutouts or recesses are provided adjacent the free ends along opposite edges of the strip whereby the tongued portions co-operatively engage in the cutouts or recesses.
Patent GB-1348639-A (GB)
Title: Aromatic polysulphones
IPC: C08G75/20
Filed: 1971-07-09
Abstract: 1348639 Aromatic polysulphones IMPERIAL CHEMICAL INDUSTRIES Ltd 9 July 1971 [6 Aug 1970] 37948/70 Heading C3R Aromatic sulphone copolymers are prepared by reacting a polyaryl sulphone containing the repeat units -ArSO 2 -, where Ar is a bivalent aromatic residue which may vary from unit to unit in the polymer chain, at least some of which have an aromatic ether or thioether group in the polymer chain ortho or para to at least one -SO 2 - group, with an alkali metal salt of at least one halophenol or halothiophenol, or with essentially equimolar quantities of an alkali metal salt of at least one dihydric phenol or thiophenol and at least one dihalobenzenoid compound, the halogen atoms of the halophenol, halothiophenol and dihalobenzenoid compound being activated by an electron-attracting group in at least one of the positions ortho or para to the halogen atoms. The reaction may be carried out in the melt or in the presence of a dipolar aprotic liquid under anhydrous conditions. In the examples copolymers are prepared by heating in solvents the K salt of 4-(4-chlorophenyl sulphonyl)- phenol and a polyaryl sulphone having the repeating unit A similar copolymer can be prepared by heating a polyaryl sulphone having the repeating unit with equimolar amounts of bis-(4-chlorophenyl)- sulphone and the dipotassium salt of 2,2-bis- (4-hydroxyphenyl)propane. In another example a copolymer is prepared by heating the potassium salt of 4-(4-chlorophenylsulphonyl)- phenol with a polyaryl sulphone having repeating units of the structures
Patent GB-1349135-A (GB)
Title: Diaphragm structures for use in seismic wave generator apparatus  and seismic wave generator apparatus embodying the same
IPC: G01V1/047
Filed: 1970-12-22
Abstract: 1349135 Seismic energy generators BOLT ASSOCIATES Inc 22 Dec 1970 34064/73 Divided out of 1349134 Heading H4D A diaphragm structure for acoustically coupling a seismic source to the earth comprises a polyurethane diaphragm 6 with an annular reinforcement skirt 6A of polyurethane to restrict displacement of the diaphragm. The source may be as disclosed in the parent Specification, including an "air gun" in a rigid, liquid-filled tank 2 the base of which is formed by the diaphragm structure.
Patent GB-1351883-A (GB)
Title: Preparation of alkyl 2-benzimidazolecarbamates and intermediates  therefor
IPC: C07D235/32
Filed: 1972-01-27
Abstract: 1351883 Alkyl 2-benminidazole carbamates and intermediates therefor E I DU PONT DE NEMOURS & CO 27 Jan 1972 3964/72 Heading C2C Alkyl esters of a 2-benzimidazole carbamic acid of the formula or a salt thereof are prepared by the following reaction sequence wherein R is (C 1 -C 4 ) alkyl; Y is hydrogen or (C 1 -C 4 ) alkyl and X is a halogen. If the product is desirably in the form of a salt, the starting material may be reacted with a cyanamide salt of the formula m(NHCN) n  wherein m<SP>n+</SP> is a cation having a valence of n of a base capable of abstracting a proton from cyanamide, whereupon the product of step 1 will be a compound of the formula wherein A is m/n.
Patent ID-25598-A (ID)
Inventor: LOMP GARY
IPC: H04B17/00
Filed: 1996-06-28
Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance. <IMAGE>
Patent IL-113973-A (IL)
Title: Manufacture of paper
IPC: D21H17/28
Filed: 1995-06-01
Abstract: Paper strengthened by starch, typically in amounts of 3 to 15% dry weight, is made by flocculating a cellulosic suspension using a polymeric retention aid which can be dissolved cationic starch but is preferably a synthetic polymer having IV above 4dl/g, shearing the resultant flocculated suspension and reflocculating it by adding bentonite or other microparticulate anionic material, draining the flocculated or reflocculated suspension and drying the resultant wet sheet, wherein insoluble particles of starch are added to the suspension as a slurry of substantially freely dispersed particles in part or all of the aqueous solution of the polymeric retention aid.
Patent IL-120415-A (IL)
Title: Loading lever mechanism for a hand-held firearm
Inventor: GUHRING MANFRED
IPC: F41A3/72
Filed: 1997-03-10
Abstract: A loading lever assembly for a hand-operated firearm which has a breech block or breech block carrier (12) guided in a weapon housing (11) for movement in a longitudinal direction of the firearm, comprising: a mounting member (1) 1877 ט" ז באב התשס" ב - July 25, 2002 attached to the breech block or breech block carrier, the mounting member including a portion protruding through the housing of the weapon; a loading lever (4) having a grip end (16) and a pivot end (18) opposite the grip end, the pivot end being pivotally connected to the mounting member to permit movement from a released position in which the loading lever extends in the longitudinal direction of the firearm toward either of first or second sides of the firearm for movement into either of first or second operative positions, the loading lever in each of the first and second operative positions extending substantially transversely to the longitudinal direction of the firearm, first and second end stops disposed on the mounting member adapted to restrict swinging movement of the loading lever when in the first and second operable positions, respectively; a restoring element (3) disposed to urge the loading lever toward its released position; and a detent mechanism (7) including engagement surfaces on the loading lever and the mounting member disposed to prevent the loading lever from swinging movement when the loading lever is in either of the first or second operative positions.
Patent IL-125477-A (IL)
Title: Unit construction plate-fin heat exchanger
IPC: F28D1/03
Filed: 1997-01-30
Abstract: A heat exchanger for transferring heat between an external fluid and an internal fluid includes two or more heat exchange cells, each heat exchange cell having a top plate with an inlet aperture at one end thereof and an outlet aperture at the other end thereof, the top plate including a first surface, a second surface and peripheral edges. The heat exchange cell also includes a bottom plate juxtaposed with the top plate, the bottom plate having an inlet aperture at one end thereof and an outlet aperture at the other end thereof. The bottom plate includes a first surface, a second surface and peripheral edges. The peripheral edges of the top and bottom plates are attached to one another, the second surfaces of the top and bottom plates confronting one another and the inlet and outlet apertures of the top and bottom plates being in substantial alignment with one another. The attached top and bottom plates define a high pressure chamber between the second surfaces thereof. The inlet and outlet apertures of the top and bottom plates including substantially curvilinear S-shaped raised flange portions extending away from the first surfaces of the plates, the substantially curvilinear S-shaped raised flange portions terminating at interior edges bounding the apertures. Each heat exchange cell includes an internal finned member disposed between and attached to the second surfaces of the respective top and bottom plates, wherein the individual heat exchange cells are assembled one atop the other with the interior edges of adjacent heat exchange cells attached together for forming a compliant bellows structure capable of elastically absorbing deflections produced during thermal loading so that the heat exchange cells may move and flex relative to one another.
Patent IL-134468-A (IL)
Title: 9 - hydrazone and 9 - azine
IPC: C07H17/08
Filed: 2000-02-09
Abstract: Disclosed are 9-hydrazone erythromycin and 9-azine erythromycin derivatives and the processes for making the same. The compounds are useful intermediates for conversion into 6-O-alkyl erythromycin. Also disclosed are the processes for converting the compounds into 6-O-alkyl erythromycin.