baber/WOPTO huggingface dataset:
Patent GB-1227687-A (GB)
IPC: H01Q19/08
Filed: 1969-11-04
Abstract: 1,227,687. Aerials. KOKUSAI DENSHIN DENWA K.K. 4 Nov., 1969 [5 Nov., 1968; 7 June, 1969], No. 53966/69. Heading H4A. In a horn aerial produced by flaring out the end of a waveguide into the shape of a horn, a plate or plates of dielectric material is or are disposed as a layer or layers on the inner surface of the horn symmetrically about its axis. As described, a circular band 3, Fig. 5, of polytetrafluoroethylene is seated on the inner surface of a conical horn 1, which is fed by a circular waveguide 2. By proper choice of the dimensions and location of the band 3, the phase patterns in the E- and H-planes may be substantially equalized, and side-lobes reduced (Fig. 3, not shown) over a wide frequency range. By providing a further circular band of dielectric material 5 adjacent the mouth of the horn the radiated beam may be made flat-topped (Fig. 6, not shown), which is particularly desirable when the horn is used to illuminate the subreflector of a Cassegrain aerial system. The embodiment shown in Fig. 5 is effective with waves of any kind of polarization, but with waves linearly polarized in a particular direction, portions of the band 3 perpendicular to that direction may be removed (Fig. 7, not shown). In another embodiment, for handling two waves of different mean frequencies and of orthogonal linear polarizations, a rectangular waveguide 2, Fig. 8, is associated with a quadrilateral-pyramidal horn 1, and two pairs of plates of dielectric material 3a, 3b and 3c, 3d are disposed, respectively, on the upper and lower, and on the right and left inner surfaces of the horn. The plates 3a, 3b are effective for vertically polarized waves, and the plates 3c, 3d are effective for horizontally polarized waves.
Patent GB-1228951-A (GB)
IPC: F04B49/08
Filed: 1968-02-29
Abstract: 1,228,951. Swash-plate pumps and motors. WYTWORNIA SPRZETU KOMUNIKACYJNEGO im. BOLESLAWA KRZYWOUSTEGO. Feb.29, 1968, No.1298/68. Heading F1A. The stroke of a swash-plate pump or motor is controlled manually, automatically or hydraulically by means of a mechanism comprising an axially slidable hollow guide member closed at one end and provided with a cut-out in its cylindrical wall for locating the end of the stroke control lever which engages the closed end and axially movable means in the bore of the guide member. The guide member is hydraulically loaded and opposes movement by the axially movable means, which movement is caused manually by screw means, by a spring or by hydraulic pressure.
Patent GB-1237962-A (GB)
IPC: F04B53/16
Filed: 1969-06-13
Abstract: 1,237,962. Cylinder liners. CROSS MFG. CO. (1938) Ltd. 13 June, 1969, No. 30053/69. Heading F2T. [Also in Division F1] The cylinder bore of an I.C. engine, pump or the like is lined with an initially flat rectangular piece of hard-rolled resilient springy steel strip which is sprung into a substantially cylindrical form with two edges 14 abutting and pressed as an interference fit into the bore. The liner may be located by a shoulder 15 on the bore or a circlip set in a groove at the base of the bore. One or both sides of strip may be coated with P.T.F.E. The strip may be 1/64 inch thick for a 3-inch diameter bore increasing up to 1/16 inch for a 20-inch bore.
Patent GB-1237986-A (GB)
IPC: H03J3/00
Filed: 1969-11-10
Abstract: 1,237,986. Radio tuners. RCA CORPORATION. 10 Nov., 1969 [14 Nov., 1968], No 54928/69. Heading H1R. [Also in Division C7] A radio tuner e.g. for UHF comprises a housing and a transmission line conductor cast as an integral unit. The housing 22, dividers 30, 32 and conductors 40, 46 and 62 are die cast in zinc alloy and may be plated with copper. The ends of conductors 40, 46 and 62 are formed as the stator plates 44a, 50a and 80a of tuning capacitors and a small fixed amount of capacity is provided between the plates and the housing through dielectric spacers 98, 100, 102. The tuning capacitor rotor plates which are fixed by spring clips (Figs. 6 and 7, not shown) on to a shaft 96 journalled in slots in the housing are driven from coarse and fine controls 35, 37 through gearing 130, 132.
Patent GB-1251329-A (GB)
IPC: F16J15/32
Filed: 1967-11-23
Abstract: 1,251,329. Shaft seals. JOSEPH LUCAS (INDUSTRIES) Ltd. 22 Nov., 1968 [23 Nov., 1967], No. 53357/67. Heading F2B. A resilient sealing ring for a shaft etc., comprises a spring-loaded lip portion 12 disposed between and integral with a pair of metal reinforced support portions 10, 16, one, 16, of of which has means, e.g. holes 19, permitting access of sealed fluid to the space defined by the support portions and the lip portion. The sealing ring is of rubber or synthetic rubber, the support portions 10 and 16 being reinforced by steel rings 11 and 17 respectively and the lip portion 12 having a sealing edge 14 urged inwardly by a garter spring 15. The support portions are axially spaced by a distance ring 20.
Patent GB-1252762-A (GB)
IPC: H05H1/12
Filed: 1968-05-22
Abstract: 1,252,762. Thermonuclear apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 Jan., 1969 [22 May, 1968], No. 24547/68. Heading G6P. A thermonuclear plasma is confined within a torus, 12, comprising an electrically insulating shell, 14, which supports the helical conductor 13a. R.F. power is coupled into 13a from a separate conductor wound adjacent to part of 13a. The helix has a distributed inductance and capacitance such that at the resonant frequency modes, the electromagnetic field is localized near the helix.
Patent GB-1256712-A (GB)
IPC: C03B18/14
Filed: 1968-04-09
Abstract: 1,256,712. Surface treatment of glass. PILKINGTON BROS. Ltd., J. LAWRENSON, and A. S. ROBINSON. 14 March,. 1969 [9 April, 1968], No. 17077/68. Heading C1M. In the method of treating glass (e.g. in the form of ribbon of glass supported on molten metal) in which at least one element migrates into the glass from a body of molten material which contacts the glass surface and clings to a locating member, the length of the body of molten material, in the direction in which the glass moves relative' to the molten body, is maintained constant in any section through the body in the said direction. in particular, the locating member may be prodided with a wear resistant edge, e.g. a Cu bar with Ru-plated edge, or may be continuously or intermittently replaced. The locating member 11 (Fig. 2) may comprise an insert 16, to which the molten body clings, which may be 'fed through the locating member. The insert may be of Fe, Ru or mild steel, which may be coated with copper, or of porous refractory or porous graphite. In another embodiment (Fig. '10) the locating member itself, in the form of a strip. 6, may be continuously replaced, or simply the trailing edge portion of the locating member (Fig.16, not shown). In a further embodiment (Fig. 19, not shown) the trailing edge portion of the locating member is vertically adjustable so that the edge portion may be lowered to compensate for wear. Also the locating member 6 may be in the form of a cylinder (Fig. 24) or have a partcylindrical face portion (Fig. 22, :not shown) such that part-rotation of the cylinder or partcylinder exposes an un-woven face to which the molten body may cling.
Patent GB-1257363-A (GB)
IPC: C01B21/14
Filed: 1969-04-02
Abstract: 1,257,363. Hydroxylammonium sulphate. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 April, 1969 [3 April, 1968], No. 17177/69. Heading C1A. In the process of producing hydroxylammonium sulphate by the reduction of NO with hydrogen in contact with a Pt catalyst in the presence of dilute sulphuric acid, the process is operated so that a volumetric ratio of H 2  : NO of from 3À5 : 1 to 5 : 1 is maintained in the reaction zone. The temperature of reaction is preferably 30-55‹ C., the catalyst used is preferably a supported platinum catalyst containing 0À3 to 5% Pt the carrier being graphite, and the starting acid may be 2N-6N H 2 SO 4 .
Patent GB-1258048-A (GB)
IPC: F16K15/20
Filed: 1968-02-07
Abstract: 1,258,048. Valves. DUNLOP HOLDINGS Ltd. 5 Feb., 1969 [7 Feb., 1968], No. 6010/68. Heading F2V. In an inflation valve having a brass valveenclosing conduit 2 mounted within a rubber base 21, the closure member 10, which is made of rubber, is freely contained within a chamber 7 formed within a valve body 3, the body having extending therethrough a passage 6 which communicates with the chamber and at the junction thereof with the chamber defines a valve closure member seat 9. The wall defining the chamber 7 has formed therein two pairs of diametrically opposed slots 11, and at least that part of the body forming the chamber is made of resilient material such that the wall segments defined by the slots may be moved outwardly relative to each other in order to facilitate insertion and withdrawal of the closure member from the chamber.
Patent GB-1258375-A (GB)
IPC: H01H9/36
Filed: 1970-02-07
Abstract: 1,258,375. Arc rupturing in switches. R. S. KUZNETSOV, A. G. USKACH, and V. G. KOSTIKOV. 7 Feb., 1970, No. 5983/70. Heading H1N. An arc quenching chamber comprises pairs of metal plates 1, having an S-shape, joined together in parallel planes by a conductive neck portion. Insulation 3 is provided between the plates which are preferably of a ferromagnetic material to facilitate the transfer of the minor arcs across the air gaps 12, 13. Each pair of plates is joined together e.g. by welding, at projections formed from their central portion 11. The plates 1 and the insulation barriers 3 are attached to the shields 4 of the arc quenching chamber, a projection (6) of the plate projecting into the shield spacing. This projection may be omitted as in Fig. 6 (not shown). The plates may be bent in opposite directions, Fig. 5 (not shown), so as to augment the blow out magnetic field.
Patent GB-1258948-A (GB)
IPC: F16D43/21
Filed: 1969-11-06
Abstract: 1,258,948. Tap holders. HOUDAILLE INDUSTRIES Inc. 6 Nov., 1969, No. 54492/69. Addition to 1,249,161. Heading B3N. [Also in Division F2] In the overload torque release clutch of the parent Specification, resetting of the sprags on reversing the drive is ensured by forming the inner member 22 from two relatively rotatable telescoped members 22a, 22b connected together by a lost motion coupling. As shown, they are connected by a key 43 on member 22a engaging an oversize slot 44 in the member 22b.
Patent GB-1265193-A (GB)
IPC: B60S3/06
Filed: 1969-04-18
Abstract: 1,265,193. Vehicle washing plant. CECCATO & C. S.p.A. 18 April, 1969 [20 April, 1968; 6 July, 1968], No. 20053/69. Heading B7J. A vehicle washing plant comprises a vertical brush unit 1 including a brush 2 movable transversely and longitudinally of a vehicle V and a control roller 5 rotatable with the brush 2 and engageable drivingly with a guide surface 7 (7<SP>1</SP>) to facilitate transverse movement of the brush unit 1. As shown in Figs. 1, 5 the brush unit 1 is mounted on a channel supporting structure 8 which is movable longitudinally of the vehicle V and guide surfaces 7, 7<SP>1</SP> provided in the structure 8, to the brush unit 1 is connected a counterweight arrangement (not shown). In washing the ends of the vehicle V the brush unit 1 inclines itself with driving engagement of the roller 5 and a respective surface 7 or 7<SP>1</SP>. A further roller 6 in which a shaft 3 is rotatable is co-operable with a respective blade 11, 111 and a respective deflection limiter 12, 12<SP>1</SP> to prevent engagement of the roller 5 and surfaces 7, 7<SP>1</SP> during washing of the sides of the vehicle. The blades 11, 11<SP>1</SP> are hinged about horizontal axes but in the modification of Fig. 6 (not shown) they are hinged vertically. In the embodiment of Figs. 7-12 a brush unit 203 has a carriage 208 which is slidable along a support structure 202 pivoted to an arch frame 201. Rollers 209, 209<SP>1</SP> are keyed to shaft 204; roller 209 is rotatable clockwise with brush 207 but is free of counter-clockwise rotation and roller 209<SP>1</SP> is rotatable counter-clockwise but is free of clockwise rotation. The rollers 209, 209<SP>1</SP> are co-operable with guide surfaces 210, 210<SP>1</SP>, 211 211<SP>1</SP>.
Patent GB-1265755-A (GB)
IPC: D06N3/04
Filed: 1969-06-02
Abstract: 1,265,755. Polyolefine coated web. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 May, 1970 [2 June, 1969 (2)], No. 27720/69 and 27721/69. Heading B2E.  A coated web suitable for the manufacture of sacks and bale-wraps comprises a woven layer made by inter-weaving tapes made from a crystalline polyolefine having a continuous coating thereon containing at least 10% by weight of the same crystalline olefine polymer and at least 40% of low density polyethylene. The crystalline polyolefine may be polypropylene, high density polyethylene, poly-4-methylpentene-1 and poly-3-ethyl butene. The tapes may be uniaxially or biaxially oriented. The coating may be applied by extrusion or meltroll coating.
Patent GB-1288814-A (GB)
IPC: F02P3/08
Filed: 1969-09-30
Abstract: 1288814 Pulse generators; generating oscillations HITACHI Ltd 30 Sept 1969 [2 Oct 1968 (3)] 48114/69 Headings H3B and H3T [Also in Division F1] An electric pulse generator, such as for ignition of a car I.C. engine, has a series circuit composed of terminals for a D.C. source 1, an induction winding 5 and a semi-conductor switching element 8, a capacitor 9 charged via a diode 7 by a voltage induced in the induction winding 5, or another winding (22, Fig. 4) coupled to the induction winding 5, due to interrupting the current through the induction winding 5 by the semi-conductor element 8 being turned off due to current saturation of the induction winding 5 and a closed circuit for the discharge of the capacitor 9, at the instant when the semiconductor element 8 is made conductive by a positive feedback circuit 5, 6 composed of a load 11 and a semi-conductor switching element, e.g. 8 and/or 20. When an ignition switch in line 2 (not shown) is closed a voltage via differentiating circuit 17, 18 turns transistor 8 on. This produces a voltage in winding 5 which induces a positive feedback voltage in winding 6 to turn the transistor 8 on more. When the current through winding 5 reaches saturation the voltage in the winding 6 decreases and transistor 8 turns off. A voltage is then induced in winding 5 and this charges capacitor 9; contact 15 then closes and on reopening a pulse from the differentiating circuit 17, 18 again turns on transistor 8. Capacitor 9 is now discharged via the transistor 8 and primary winding 12 of an ignition coil 11 which co-operate with diode 19 to produce oscillations (Fig. 2d, at time t 3 , not shown) from the output winding 13 for a spark plug 14. A current regulator may be inserted in the base circuit of 8 so as to ensure that the current energy stored in winding 5 when transistor 8 turns off can be constant. The pulse generator can be modified by including an SCR 20 in series with the transistor 8 (Fig. 4) (Figs. 3 and 5, not shown), so that the SCR 20 turns on and off when the transistor turns on and off. The SCR and diode 7 then act to protect the transistor 8 when it is off against emitter-collector breakdown. In a further modification (Fig. 6, not shown), the capacitor 9 is charged and discharged from a tertiary winding 22 of the magnetic core 4 by a gate turn off GTO thyristor 23 turned on and off by control of its gate from the winding 6 as transistor 8 is turned on and off.
Patent GB-1290819-A (GB)
IPC: F41F3/065
Filed: 1971-04-19
Abstract: 1290819 Moulding rocket missile carriers SAAB-SCANTIA AB 19 April 1971 [24 April 1970] 26991/71 Heading B5A [Also in Division F3] A rocket missile carrier for mounting on an aircraft comprises an integral body 1 of synthetic plastics material having longitudinal guides therein. One of the guides is central and has a metal &c. tube 2 therein and the other guides 9 are angularly-spaced around said central guide. Arms 4 are attached to the tube 2 by a wall 5 and screws, the assembly then being positioned in a mould prior to the introduction of foamable polyurethane, for example. During the moulding process a compressed layer is formed around the body 1 and in the guides 9. When the body 1 has hardened a member 7 is attached thereto by screws 6 and the arms 4, the member 7 having portions 8 by which it may be suspended from an aircraft. Rocket missiles 10 are positioned in the guide and a nose cone 11 of frangible synthetic plastics material is fitted to the body 1. In a modification the arms may be web plates.
Patent GB-1295842-A (GB)
IPC: C08L61/10
Filed: 1969-10-29
Abstract: 1295842 Porous pigmented compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Oct 1970 [29 Oct 1969] 52970/69 Heading C3C A paint composition contains pigment free from air-filled pores and dispersed discrete particles of inorganic extender or polymer, the particles containing pores of diameter 0À1 Á or less and the pores containing air or other gas or a volatile liquid. In the examples spherical porous silica particles and porous cross-linked polystyrene particles respectively were incorporated into a mixture of rutile titanium dioxide, a drying oil-modified alkyd resin, white spirit and calcium, cobalt and lead naphthenate and the resulting paint was dried on a substrate to produce a film containing air-filled pores of diameter 0À1 Á or less.
Patent GB-1296494-A (GB)
IPC: B60T8/52
Filed: 1970-03-17
Abstract: 1296494 Antiskid braking systems DAIMLER-BENZ AG 17 March 1970 [21 March 1969] 12766/70 Heading F2F A device for controlling the brake pressure for preventing wheel locking of a vehicle has a force measuring or pick-up device 4 in mounting means for the brake or brake linings, or in an abutment 3 acting horizontally between at least one wheel 1 and the vehicle chassis which controls a brake valve 17 in dependence upon variation of the braking force K. The device is used in conjunction with a second device which measures the applied braking force K B  which second device may directly measure the brake pipe pressure or the reaction force on a brake shoe, the values K, K B  being compared by various means to control the valve 17. In the embodiment shown for a single wheel the force K is differentiated twice by differentiators 13, 14 the outputs of which are passed to a level switch which feeds a "NAND " gate 16 when the second differential goes beyond a negative threshold value S, Fig. 6 (not shown). The force K B  is differentiated at 18 the output of which passes to a further level switch 19 supplying a signal to the " AND " gate when the differential of K B  passes a given negative value. In a further embodiment the difference #K between K and K B  is supplied to a differential amplifier 20, Fig. 7 (not shown), the signal from which is differentiated by a differentiator (21) and then passed to a switch 22 which transmits a signal to the brake valve when the differential DK<SP>1</SP> exceeds a positive value S 1 , Fig. 10 (not shown). In another embodiment magnitudes K and K B  are fed to a ratiometer 23, Fig. 11 (not shown) which feeds the quotient Q obtained through a differentiator (24) to a level switch (25) which may be set either to a threshold value S 1  for quotient Q or to a value S for the first differential Q<SP>1</SP>. The device may be provided for each axle, front and rear, mean values of the individual control magnitudes being used or a mean value of a control magnitude may be derived for the axle as a whole.
Patent GB-1297020-A (GB)
IPC: B07B7/08
Filed: 1970-10-14
Abstract: 1297020 Grain cleaning machines BUEHLER AG GEB 14 Oct 1970 [15 Oct 1969] 22929/72 Divided out of 1297019 Heading A2Q The subject-matter of this specification is identical with that described in Specification 1297019 but the claims are concerned with the arrangement of blades on the rotor of the machine.
Patent GB-1301483-A (GB)
IPC: B64D17/34
Filed: 1969-11-01
Abstract: 1301483 Parachutes G Q PARACHUTE CO Ltd 16 Oct 1970 [1 Nov 1969] 53655/69 Heading B7G A parachute assembly comprises a canopy 12, rigging lines 13 and risers 15, 16 for attaching the canopy to a parachutist 11, and means 19 connecting the canopy to a load 17. Line 19, which may be of webbing or rope, is connected to two shoulder release mechanisms 25 on the parachutist's harness 18 by straps 20 and webbings 24 and lugs 28 which connect rigging lines 13 to the shoulder release mechanisms. The bridled webbings also pass through loops 21, 26 on the front risers 15 of the rigging lines and the load is suspended some distance below the parachutist so that it reaches the ground before the parachutist and acts as a drag anchor the pull of which tilts the canopy 12 to increase lift and slow the rate of descent. Operation of the shoulder release mechanisms detaches the parachutist and load from the canopy and from each other. Line 19 is shortened initially by breaking ties or stitches which break as the load falls, and may include an elastic section which helps to keep the line straight when the load touches the ground. Phosphorescent or radioactive lights may be fitted on the load end of the line and the canopy may be of a low speed, high lift, aerofoil form and may have open panels, possibly covered with net, on the side adjacent the parachutist's back. In a second embodiment the bridled webbings 24 are attached through loops 21, 26 to rear risers 16, Fig. 6 (not shown).
Patent GB-1301525-A (GB)
IPC: F03C1/253
Filed: 1970-05-26
Abstract: 1301525 Reciprocating pumps or motors REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 26 May 1970 [12 June 1969] 25296/70 Heading F1A A tilting-head pump or motor comprises a rotary cylinder block 1 supported in a casing 4 pivotable on bearing surfaces P, and pistons connected by rods 6 to a drive flange 7 connected to drive shaft 8, the drive flange being axially supported by a hydrostatic bearing comprising recesses 42 corresponding to the cylinder parts 22, and arcuate parts 43, 44 corresponding to the valve plate parts 23, 24, Figs.3 to 6 (not shown), one arcuate part 43 or 44 being connected to the pressure side of the pump or motor through a valve 52 controlled by a piston 46 in cylinder block support 4, so that the pressure supplied to the hydrostatic bearing is proportional to the angle of tilt of the block. Piston 46 is connected to the pressure side of the pump or motor via passages 47, 50 and 49, the reversible pump or motor shown having two sets of pistons 46 and valves 52, and a non-reversible pump or motor having one set. Pistons 46 may engage valves 52 through balls Fig.7 (not shown). Passages 50 also provide lubrication to bearing surfaces P, and passages 42a provide lubrication from the hydrostatic bearing to piston rod ball joints 5. Valve plate parts 23, 24 communicate with inlet and outlet parts 32, 33 via passages in intermediate members 25, 28, member 25 being slidable on member 28, which is slidable on casing surface 26, a spring 29 biasing member 28 to its left-hand, position, Fig. 2. On tilting the cylinder block to the right in Fig.2, abutment 38 on member 25 engages member 28 and moves it to the right. Piston rod balls 5 are retained by a plate 10 located by a spring 11.