baber/WOPTO huggingface dataset:
Patent GB-1437823-A (GB)
Title: Roof ventilating element
IPC: E04D13/17
Filed: 1973-10-25
Abstract: 1437823 Ventilating roofs CONDER INTERNATIONAL Ltd 25 Oct 1974 [25 Oct 1973] 49742/73 Heading E1W Corrugated roofing is ventilated at the ridge or at a mid point by an element, which may be a branch of a ridge capping 4, or a separate device, the element having at least one side wail arranged to lie adjacent a corrugation and having an upper part, e.g. 7 (Fig. 1) spaced away from the corrugation, and a lower part, e.g. 6 fitting closely against the corrugation, the line of intersection 8 therebetween being at an angle of more than 10‹ more than the pitch of the roof, and less than 40‹ to the horizontal. The edge 11 of the element of Fig. 1 is spaced from the top of the corrugation, whereas the equivalent edge in the embodiment of Fig. 6 is in contact with the top of the corrugation, and in this embodiment steps 26 and 29 are also formed' in the device, with a plasterboard strip 24 spacing the upper base part 28 from the roof sheeting 22, which is spaced by a further strip 34 from plasterboard panels 32 supported by I-bars 33 on purlins 31. In a further embodiment, Fig. 10, not shown, the upper is formed inside the corrugation of the upper roof sheet (23), the lower part (41) of the side wall of the device being in contact with the inside face of the corrugation.
Patent GB-1518400-A (GB)
Title: Process for the manufacture of homo-and copolymers of ethylene
IPC: C08F2/00
Filed: 1976-12-01
Abstract: 1518400 Polymerization of ethylene RUHRCHEMIE AG 1 Dec 1976 [6 Dec 1975] 51057/76 Heading C3P A (co-) polymer of ethylene having a molecular weight above 500,000 is prepared by polymerizing ethylene in an inert diluent in the presence of an alcohol and a catalyst prepared by reducing a Ti IV halide with an organoaluminium compound to form a Ti III halide which is subsequently activated with an organoaluminium compound with a Ti to Al ratio in the range 1 : 0À1 to 1 : 2 then treated at 0 to 80‹ C. with 0À05 to 50 gm. of one or more C2-6 alpha-olefines per gm. of Ti III halide. In the examples ethylene is continuously homopolymerized or copolymerized with butene-1 in an aromatic hydrocarbon in the presence of n-butanol and the product of reducing TiCl4 with Et2AlCl, activating the resulting TiCl3 with Et2AlCl and contacting it with ethylene or butene-1.
Patent GB-1078069-A (GB)
Title: Improvements in and relating to sawtooth waveform generating circuits
IPC: H03K4/56
Filed: 1964-12-10
Abstract: 1,078,069. Transistor sawtooth circuits; cathode-ray tube circuits. COMPAGNIE DES COMPTEURS. Dec. 10, 1964 [Dec. 31, 1963], No. 50290/64. Headings H3T and H4T. A deflection circuit, particularly for a vidicon camera tube, comprises a complementary pair of transistors 24, 25 having their emitter-collector paths in series, deflection coils 26 connected between the collectors and a point of reference potential, sawtooth waveforms fed to the bases and a centering voltage fed to the slider of a remote potentiometer 30 connected between the bases. Each sweep is terminated by feeding a black frame pulse t1 which cuts off transistor 10 and allows an oscillatory circuit 11 to oscillate for one negative half-cycle, the duration of which is less than that of the pulse t1. This pulse is squared by transistor 14 and its trailing edge is used to initiate a sawtooth waveform from a Miller integrator 15, the output of which is passed via emitter followers 21, 22 and amplitude control 23 to the bases of transistors 24, 25. The pulse shortening circuit comprising components 10, 11 is utilized to avoid the non-linear start of the sweep becoming an effective part of the display.
Patent GB-1474697-A (GB)
Title: Jointing of tubular members
IPC: F16B7/04
Filed: 1973-10-30
Abstract: 1474697 Joining tubular structural members DESIGN ANIMATION Ltd 29 Jan 1975 [30 Oct 1973] 50326/73 Heading F2M Tubular structural members 1, 2 of rectangular cross-section, and a third similar tubular member (not shown), are joined at the corner of a three-dimensional framework by a device comprising three spigots 5, 6, 7, which extend at right angles to each other from a common junction at which mitred inner ends of spigots 5 and 6 are secured together in abutment and the inner end of spigot 7 is secured in a position butting up against the mitre, each spigot being of U-section to fit within a respective one of the tubular members and having an expander assembly consisting of an inner channel 9, having a spacer 10, and cutouts 12 in its flanges for receiving threaded expander elements. The latter comprise a square or polygonal nut 14, having corner lugs 16 to grip the tubular member, and a screw 17 engaged with a threaded bore of the nut and rotatable from the exterior of the tubular member by an Allen key engaging a socket 18 via an aperture 19 in the member.
Patent GB-1086228-A (GB)
Title: Improvements in or relating to electric discharge devices comprising a photocathode
IPC: H01J1/34
Filed: 1965-11-29
Abstract: 1,086,228. Photocathodes; semi-conductors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 29, 1965 [Dec. 2, 1964], No. 50530/65. Headings H1D and H1K. A photocathode consists of a P-type semiconductor activated with an alkali metal, with or without oxygen, the semi-conductor comprising a compound of one of the elements of the third column of the periodical system, e.g. B, Al, Ga, In, and one of the elements of the fifth column, e.g. N, P, As, Sb, or mixed crystals of these compounds, with an energy gap lying between 1À1eV and 1À6eV. The semiconductor may be gallium arsenophosphide, or gallium arsenide having an acceptor concentration of 10<SP>18</SP>-10<SP>20</SP>, e.g. 4 x 10<SP>19</SP>, atoms per cm.<SP>3</SP>, the acceptor being Zn, Cd, Hg or Te. The gallium arsenide may contain ¢% of gallium phosphide or gallium antimonide. The photocathode may be used in a photo-cell, a photomultiplier, an image intensifier, an image iconoscope, or an image orthicon. During manufacture of a photo-cell, a gallium arsenide crystal may be severed by a knife supported by a movable metal part of the sealed envelope, Fig. 1 (not shown), before application of a monoatomic caesium layer by evaporation. Alternatively, a P-type semi-conductor may be applied by vaporization to a curved molybdenum plate, or to a portion of the tube envelope, and exposed to caesium vapour, to produce a layer 1000Š thick.
Patent GB-1067264-A (GB)
Title: Improvements in or relating to positioning mechanisms for positioning movable members
IPC: G05D3/14
Filed: 1964-05-04
Abstract: 1,067,264. Machine tool details. WARNER & SWASEY CO. May 4, 1964 [May 3, 1963], No. 51062/66. Divided out of 1,067,263. Heading B3B. In a machine, presettable control means are provided to measure the movement of a member from a selected coarse position, there being second control means capable of rendering the presettable control means effective, and third control means for conditioning the second means to render the presettable control means effective only as the member arrives at a preselected coarse position. The machine is as described in Specification 1,067,263.
Patent GB-1388699-A (GB)
Title: Wheels for receiving tyres
IPC: B60B11/06
Filed: 1972-11-07
Abstract: 1388699 Wheel rims DAYTON-WALTHER CORP 7 Nov 1972 [11 Nov 1971] 51305/72 Heading B7C A wheel rim 11 comprises an integral tyre bead retaining flange at one side and a detachable bead retaining ring 10, e.g. a split ring, at the other. Displacement of the ring 10 from the rim, when a tyre mounted thereon becomes deflated is prevented by restraining means engaging a flange 17 on the ring 10. In the Fig. 1 embodiment, the ring 10 has a radially inwardly extending annular projection 15 locatable in a circumferential groove in the rim, and the restraining means comprises a plurality of circumferentially spaced members 20 secured to the wheel disc 12A and having hooked portions 19, co-acting with the flange 17 on the ring 10. In modified arrangement (Fig. 2, not shown) the restraining means comprises a ring (30) secured to the wheel in a manner similar to that of Fig. 1 with the hooked portions 19 being provided at circumferentially spaced locations. In a further modification (Fig. 3) each member 20 comprises two parts 40, 41, the part 41 being provided with the hooked portion 19 and being radially adjustable relative to the other part and bolt 42. In a double tyred wheel, each rim 11 is provided with a detachable bead retaining ring 10, and the restraining means comprises two retaining rings 20 and a spacer ring 60 therebetween. The rims 11, and the restraining means are clamped on wheel body 12B by lugs 57. In a modification (Fig. 5, not shown) the retaining rings 20 are integral with the spacer ring.
Patent GB-1522379-A (GB)
Title: Traffic control system
IPC: G08G1/082
Filed: 1975-12-16
Abstract: 1522379 Road traffic signal controllers SPETSIAL KONSTRUKTOR BJURO PROMYSHLEN AVTOKAT 16 Dec 1975 51481/75 Heading G4Q A road traffic control system in a city comprises a separate control station for each region of the city, each control station having its own computer which receives data from the traffic sensors within its own region and from the computers of neighbouring control stations, and supplies control signals to the individual traffic light controllers within its region accordingly. Each control station also includes a fixedprogramme unit to take over control of the region should the computer fail.
Patent GB-1477227-A (GB)
Title: Vaginal speculum
Inventor: MOORE WILLIAM C
IPC: A61B1/32
Filed: 1974-11-28
Abstract: 1477227 Speculum WELCH ALLYN INC 28 Nov 1974 51520/74 Heading A5R A vaginal speculum comprises a pair of relatively pivotal resilient blades 14, 15, one blade 14 being slidable relative to the pivot 21 to adjust the spacing between the blades independently of means for adjusting the angular separation of the blades and for retaining the blades in adjusted position, the means comprising on one blade, a double row of ratchet teeth 22 and, on the other blade, a pawl 24 co-operable with the double row and selectively engageable with the teeth in either row. Each blade 14, 15 has a pair of parallel walls 16, 18, the walls of one blade 15 which has a handle 17 nesting within the walls of the other blade 14 which supports a yoke 25 between the walls defining a viewing passage. Each wall of the one blade 15 has a projecting pin 21 and two rows of ratchet teeth 22 which engage a slot 20 and a pawl 24 respectively in each of the walls 18 of the other blade 14. The spacing of the blades may be altered by applying pressure to the yoke 25 to slide the slots 20 to extreme portions on the pins, the pawls 24 simultaneously being moved from one to the other rows of ratchet teeth 22. The angular separation between the blades may be adjusted without altering their spacing by applying pressure to the yoke 25 to slide the pawls 24 along the rows of ratchet teeth 22 which they engage. The blades are made of mouldable plastics and thus the pawls 24 can ride over the blade walls between the rows of ratchet teeth 22, which are formed along the edges of slots 27 in the blade walls 16, if the blade spacing is altered for any adjustment of the angular separation. An illumination unit may be accommodated within the handle 17, light being directed over a mucous baffle (37) along the axis of one blade 15.
Patent GB-1525169-A (GB)
Title: Immersion pump
IPC: F04D7/06
Filed: 1976-12-13
Abstract: The submersible pump, which is particularly suitable for fitting in a vessel, has a drive shaft (5) which is surrounded by a riser (1) and is enclosed by an inner tube (13). The inner tube (13) has a framework (14) whose thermal expansion coefficient is approximately equal to that of the drive shaft (5). The framework (14) is enclosed by a protective jacket (15) made of plastic. If the submersible pump during operation is exposed to temperature differences, the axial extent of the framework (14) changes by approximately the same extent as the length of the drive shaft (5), while the protective jacket (15), which has a considerably larger thermal expansion coefficient, can expand further virtually unhindered. As a result, the pressure forces arising at the sealing surfaces of seals (6) of the drive shaft (5) are neither too high nor too low, and the fitting length of the seals (6) remains virtually unchanged. The plastic jacket (15) acts as protection against aggressive media to be delivered, so that the framework (14) can be made from an inexpensive material. <IMAGE>
Patent GB-1172502-A (GB)
Title: Method for the Manufacture of a Knitted Fabric Web
IPC: D04B21/00
Filed: 1966-11-21
Abstract: 1,172,502. Finishing fabrics; knitting. ROKONA-TEXTILWERK G.m.b.H. 21 Nov., 1966 [15 Dec., 1965], No. 51969/66. Headings D1K and D1S. In a method for the manufacture of a fabric web on a warp knitting machine having two guide bars, the web is worked fully drawn in on a first guide bar in satin pattern of substantially 40/13 denier nylon threads and fully drawn in on a second guide bar in the knitting pattern of substantially 40/13 denier nylon threads and substantially 30/10 denier nylon threads the, two threads respectively being fed over a leasing rod to the respective guide bar of the machine and then embossed under the action of heat, at a temperature of at least 200‹C and at a pressure of at least 28 tons, by a roller having a surface pattern simulating a woven structure. Preferably, the fabric is heat set at 165‹C and dried before embossing. The heat setting is effected on a stenter frame with an overfeed of 15%, a fabric speed of 20 m/min and a draw-off of 9%. An example of warp knitted fabric is shown, Fig. 1.
Patent GB-1196878-A (GB)
Title: Improvements in and relating to Hydraulically or Pneumatically Controlled Slide Valves.
IPC: F16K31/363
Filed: 1968-11-04
Abstract: 1,196,878. Valves. CONTRAVES A.G. 4 Nov., 1968 [22 Dec.. 1967], No. 52167/68. Heading F2V. A piston slide valve for connecting a work passage A112 to either a pressure passage P<SP>111</SP>  or a return passage R113 is controlled by pressure fluid admitted alternatively to ports 121, 21 to act on the opposite sides of a piston extension 31. Leakage fluid along the piston is removed by port 117 or relief ducts 115, 116, one of which is uncovered towards the end of a control movement to relieve the control pressure.
Patent GB-1132468-A (GB)
Title: Apparatus for the air-conditioning of rooms
IPC: F24F3/147
Filed: 1965-12-10
Abstract: 1,132,468. Air conditioning; contacting gases with liquids. LUWA A.G. 10 Dec., 1965 [11 Dec., 1964], No. 52614/65. Headings F4K and F4V. In an air conditioning system in which outside air is supplied to a room 1 through a duct 2 and stale air is withdrawn from the room through a duct 3, direct-contact water to air heat exchangers 4, 5 and 8, 9 are provided in ducts 2 and 3 respectively. In winter operation, the water circulated through heat exchangers 8, 9 picks up heat from the outgoing air and is passed through pipes 32, 30 and 29 to heat exchangers 5, 4 in which it is used to heat and humidify the incoming air. The water is returned from heat exchanger 4 through pipes 14, 17 and the degree of heating of the incoming air may be varied by by-passing a desired proportion of the returning water around heat exchangers 8, 9 through conduit 33 under the control of valve 20. The latter is responsive to a thermal element 39 in duet 2. For summer operation the water for heat exchangers 4, 5 is circulated in a closed path (viz. pipes 14, 24, 27 and 29) which includes the evaporator 23 of a refrigeration system while the water for heat exchangers 8, 9 circulates in a separate closed path (viz. pipes 32, 35, 19 and 40) which includes the condenser 36 of the refrigeration system. Thus, the water in heat exchangers 4, 5 cools and de-humidifies the incoming air and the water cooled by the outgoing air in heat exchangers 8, 9 is used to cool said condenser. A valve 22 controlled by a thermal element 38 in duct 2 controls the amount of water by-passing the evaporator 23 through pipe 21, 25 to regulate the degree of cooling of the incoming air. A filter 12, auxiliary heater 13 and fan 7 are provided in duct 2 and a fan 11 is provided in duct 3. Quick-contact heat exchangers.-Each heat exchanger may comprise a casing 50, Fig. 2, a packing 54, a header 55 for supplying water to the packing, and a drain 57. Air passes through the packing into the casing and is withdrawn therefrom through a duct 53.
Patent GB-1140610-A (GB)
Title: Preparation of polyamide powders
IPC: C08G73/10
Filed: 1966-11-24
Abstract: 1,140,610. Polyimide powders. E. I. DU PONT DE NEMOURS & CO. 24 Nov., 1966 [26 Nov., 1965], No. 52660/66. Heading C3R. Coalescible polyimide powders having a surface area of at least 1 m<SP>2</SP>/g. are prepared by reacting (a) equimolar (Œ 5%) proportions of an aromatic diester diacid and an aromatic diamine, or (b) an aromatic ester acid amine (the ester, amine and acid groups all being directly attached to an aromatic ring with the ester and acid groups in ortho pairs) at 100‹ to 200‹ C. in an inert solvent using as catalyst 0À01 to 0.3 moles per mole of acid group of an alkaline earth or alkali metal hydroxide, carbonate, C 1-6  alkoxide or C 1-6  fatty acid ester. The reaction involves three steps: (i) formation of an anhydride, (ii) reaction of the anhydride and amine groups to form a polyamide acid, and (iii) cyclization of the polyamide-acid to form a precipitate of polyimide. It is stated that in the absence of the specified catalyst a lower molecular weight polyimide powder which is not coalescible would be obtained. Extensive lists of reactants and solvents are given. In specific examples the catalysts used are sodium methoxide, acetate, carbonate or hydroxide and the reactants are 4-amino-3<SP>1</SP>- carbethoxy-4<SP>1</SP>-carboxybenzophenone or mixtures of diethyl esters of pyromellitic or 3,3<SP>1</SP>,4,4<SP>1</SP>-henzophenone tetracarboxylic acid and 4,4<SP>1</SP>-diaminodiphenyl ether or m-phenylene diamine. Fillers, e.g. graphite, silicon carbide, alundum, metals, P.T.F.E. or glass may be incorporated prior to precipitation. The products may be formed into bearings, seals, moulds, piston rings or grinding wheels.
Patent GB-526981-A (GB)
Abstract: 526,981. Apparatus for the playing and teaching of Contract Bridge. BAKER, H. March 30, 1939, No. 9997. [Class 132 (ii)] Apparatus for playing and teaching the game of Contract Bridge comprises hinged shutters 16, Fig. 1, and a rotatable disc 22 for co-operation with sheets, each showing the cards 4, Fig. 3, for each of the four players in a game as well as the bidding 6 and cards of each trick 5 as determined by an expert. The progressive scoring during the game is also shown at as well as the final score at 8. The sheets are positioned on a base 1 by pins 3 and a cover 10 is provided having apertures 12 for the cards of the hands. The rotatable disc 22 has apertures 23, 24, 25 which uncover successively the tricks, the scores made and the bidding. The disc is rotated by means of finger holes 25<SP>1</SP>. The hinged shutters 16 covering the apertures for the hands have curled edges 17, Fig. 2, by which each may be opened, and the spindles 13 of the shutters also have strips 18 fast thereon which in conjunction with the projecting end 15 of the spindle operate all the shutters simultaneously so as to open those of South and North which are the hands of the player and dummy, and to close those of East and West. The player may use the apparatus to study the experts playing of the hands or may himself select the cards to be played and compare his choice with that of the expert as shown by the tricks exposed in the aperture 23. The cards to be played from East's and West's. hands are those covered by the shutters 1, 2 &c. in succession. The sheet and board may be adapted for playing the game in which a fifth suit is used in which case there will be sixteen tricks shown and the card known as Kitty,and the discard from North's or South's hands are shown after the first trick has been played in the openings 44 and 47, Fig. 4. The cover is retained by pivoted hooks 10<SP>1</SP>, engaging the pins 3.
Patent GB-1419263-A (GB)
Title: Valve actuator buttons for hand-held pressurised dispensers
IPC: B65D83/14
Filed: 1972-11-16
Abstract: 1419263 Pressurized aerosol dispensing containers AEROSOL INVENTIONS & DEVELOPMENT S A 9 Nov 1973 [16 Nov 1972] 52919/72 Heading F1R A dispensing valve button has an outer sleeve which is rotatable relative to the inner portion which has a discharge nozzle 6. The sleeve has an aperture 12 which may be brought into alignment with the nozzle 6 for discharging, or out of alignment to prevent discharge.
Patent GB-1205980-A (GB)
Title: Improvements in or relating to contactless switches
Inventor: UNDERHILL MICHAEL JAMES
IPC: H03K17/16
Filed: 1967-11-23
Abstract: 1,205,980. Field effect transistor switches. MULLARD Ltd. 23 Nov., 1967, No. 53345/67. Heading H3T. A MOST field effect transistor switch or gate has its substrate connected to a datum level such as earth through a capacitor only. This capacitor prevents transmission between source and drain through the series path comprising the capacitances between these two electrodes and the substrate. Diode action between source or drain and the substrate will produce a D.C. voltage at the substrate.
Patent GB-535414-A (GB)
Abstract: 535,414. Calculating-apparatus. YOUNG, A. Aug. 8, 1939, No. 22903. [Class 106 (i)] A multiplying device of the kind comprising a series of data-carrying members in a frame, each adjustable in accordance with one of the factors and each serving to display in the frame a series of multiples of that factor, is adapted for calculations involving non-uniform notation by the provision of two data-carrying members for one or more of the non-decimal denominations. As shown in Figs. 1 and 2, applied to the multiplication of British monetary units the data-carrying members are constituted by strips 16 slidably mounted in a casing formed with front and back plates 11 and 12 having transverse apertures or slots to display multiples of the amount set up in the slot 19 in the front plate. The setting is effected by a stylus engaging perforations 20 in the data strips through numbered apertures 21 in the front plate. Two strips are provided for the shillings denomination representing units and tens respectively. These strips are marked on their edges with numbers in distinctive colours appropriate to their own denomination and to that of the next higher denomination. Carrying over the figures for mental addition to give the complete multiple is facilitated by providing these strips with distinctive markings such as coloured lines 42. A pence conversion table 44 is arranged at the top of the front plate to facilitate the use of the device for dealing with multipliers of several denominations. A wire loop 22 with a projection cross portion 24 is provided for re-setting the data strips to zero position. Instead of strips the data-carrying members may be constituted by rotatable polygonal rollers. U.S.A. Specification 1,892,634 is referred to.