baber/WOPTO huggingface dataset:
Patent GB-1294755-A (GB)
Title: Composite open web joist
IPC: E04C3/09
Filed: 1970-11-30
Abstract: 1294755 Reinforced concrete; metal joists HAMBRO STRUCTURAL SYSTEMS Ltd 30 Nov 1970 56683/70 Headings E1W E1S and E1K The top chord of an open-web steel joist for use in a composite structure has a first part shaped to define at least one channel which can be substantially filled with concrete when the joist is incorporated in such a structure and a second part consisting of a downwardly extending flange provided with openings at intervals along its length to receive spanner bars. As shown, the top chord is of Z section with a downwardly extending flange 16 having openings 18 which receive the reduced ends of the spanner bars 17. The spanner bars support plywood forms 19 or steel pans 20. Concrete is poured on to the forms or pans to embed the upper parts of the top chord and also reinforcing mesh 13. Knock-out portions 21 are provided below the openings 18 so that the spanner bars and forms may be removed when the concrete has set.
Patent GB-1158229-A (GB)
Title: Improvements in or relating to Clutch Mechanism for Motor Vehicles and Other Purposes.
IPC: F16D13/58
Filed: 1967-12-14
Abstract: 1,158,229. Friction clutches. GENERAL MOTORS HOLDEN'S PTY Ltd. 14 Dec., 1967 [14 Dec., 1966], No. 56835/67. Heading F2C. A motor-vehicle plate clutch 2, 3, 4 engaged by a Belleville spring 9 fulcrumed at 14, 13 on a driving housing 6 and pressure plate 4 respectively is disengaged by the usual throw-out bearing 16, 17 hydraulically or manually moved axially away from the flywheel 2 to act through levers 18 which are fulcrumed at 19 on the housing 6 and are connected through intermediate links 21 to directly move the pressure plate 4 against the Belleville spring pressure to release the clutch plate 3. The pressure plate 4 is concentrically retained in the cover 6 by tangentially arranged drive straps (8) (Fig. 5, not shown).
Patent GB-1362975-A (GB)
Title: Receivers
IPC: H04B1/10
Filed: 1971-12-07
Abstract: 1362975 Stereophonic radio systems; interference suppression SONY CORP 7 Dec 1971 [11 Dec 1970] 56887/71 Heading H4L Noise suppression in an F.M. receiver involves blocking a gate 21 in the stereo demodulator 7 output in response to a control signal S4 generated at 13 when a noise detector 12 senses noise in the output of the discriminator 4 above the frequency of the composite stereo signal.. The noise detector is a high pass filter (12, Fig. 3, not shown) and the control signal is generated by a monostable (14), integrator (15), and Schmitt trigger (16). Field effect transistors 23, 24 constituting the gate 21 are turned off by the Schmitt output, this blocking action being made to coincide with the noise signal as it reaches the gate, by means of a delay circuit 35. The Schmitt also supplies an output S5 to make a transistor Th conduct to short the coil 29 of a tuned circuit connected to the drain of a F.E.T. Tg, thereby inhibiting the switching and composite signals normally applied to a transformer 33 from Tg drain and from a frequency doubler 34, respectively. This prevents noise signals from causing the tuned circuit to ring, and the switching circuit to function erroneously. In a further refinement (Fig. 5, not shown) the highfrequency noise detector 12 is connectible alternatively to the discriminator 12 (as in Fig. 1) through a capacitor (46) and transistor (Tl), or to a second noise (amplitude) detector (40), responsive to noise in the I.F. stage 3, through a transistor (Tk). The transistor Tl is turned off and Tk on when a detector (44) and pulse shaper (47, 48, 49) senses that the I.F. signal amplitude (at g) is exceeded by the noise level, which noise level is that (detected at 40) which is applied through Tk to control the circuits 12, 13, 6, 7 as before.
Patent GB-1254537-A (GB)
Title: Digital computer apparatus
Inventor: WASHIZUKA ISAMU
IPC: G06F7/48
Filed: 1968-12-02
Abstract: 1,254,537. Field effect transistor circuits. SHARP K.K. 2 Dec., 1968 [12 Dec., 1967], No. 57129/68. Heading H3T. [Also in Division G4] A bi-stable stage for use in an integrated circuit shift register includes MOSFETs. Transistors 41, 42 store the bit and inverted bit charges in their input capacitors the charges being retained by recirculation via transistors 44, 45 rendered conductive respectively by pulses # 2 , # 3  of three phase clock pulses. Input to a stage and shift in the register is controlled by FET 43 enabled by clock pulse # 1 . An alternative form is shown in Fig. 10-1 where two transistors 51, 52 replace transistor 41 and recirculation occurs round these transistors and not round the whole stage. A further form shown has no recirculation and is controlled by a two-phase clock pulse. Circuits are given for an AND gate, two parallel FETs coupled to a common load formed by a further FET and feeding an inverter, and an OR gate, FETs in series.
Patent GB-1285614-A (GB)
Title: Process for transferring electrostatic charge images
IPC: G03G5/06
Filed: 1969-11-21
Abstract: 1285614 Transferring electrostatic charge images KALLE A G 21 Nov 1969 [25 Nov 1968] 57178/69 Heading G2H In a process for transferring electrostatic charge images from a photo-conductive layer to a dielectric layer in virtual contact therewith, the photo-conductive layer consists entirely, substantially or contains charge transfer complexes which can be charged to 800 to 1,600 volts in a thickness of 8 to 15Á and when exposed to light image areas have a voltage of about 500 volts, whereas non-image areas have a voltage of about 300 volts. As shown, a metal drum 1 has a photoconductive layer 2 charged to about 1,200 volts by a corona discharge 3. An original conveyed synchronously in a direction opposite to the direction of drum rotation is exposed through a slit by lamps 5. Image receiving material 9 is brought into contact with the layer 2 to transfer the charge image thereon. The resulting latent image on the material 9 which is developed by developer sprayed from a nozzle 15. The developed image is fixed by squeeze rollers 17, 18 and  radiators 20. The photo-conductive material consists entirely or substantially or organic charge transfer complexes or contains such complexes. Examples of photo-conductive materials are given e.g. 2, 4, 7-trinitro-9-fluoronone, poly N-vinylcarbazole and those disclosed in Specification 942810.
Patent GB-1326775-A (GB)
Title: Method and apparatus for making printing plates and other materials having a surface in relief
IPC: B41C1/055
Filed: 1970-12-02
Abstract: 1326775 The method of making printing plates APPLIED DISPLAY SERVICES Inc 2 Dec 1970 [9 Dec 1969 4 Nov 1970] 57317/70 Heading B3A [Also in Divisions B6 G2 and H4] A metal-coated surface such as a printing plate is imaged in relief by the use of two laser beams in succession. The first beam is of visible light, and removes parts of the metal coating as it is moved and modulated in a raster pattern. Then an infra-red beam is used to make incisions in a plastics or other substrate beneath the metal coating, which acts as a mask and allows a finer resolution than would be obtainable by the use of an infra-red laser beam alone. Preferably the metal coating is of aluminium, copper or nickel, and the lasers are an argon laser and a CO 2  laser respectively.
Patent GB-1279933-A (GB)
Title: A method of changing a flash evaporator from sterilizing mode to operation mode
Inventor: BURBERRY ROBIN KEITH
IPC: B01D3/06
Filed: 1970-12-02
Abstract: 1279933 Flash evaporator in sterilization apparatus A P V CO Ltd 2 Dec 1970 57367/ 70 Heading B1B After sterilization of sterilization flash evaporator 16, the pressure is reduced gradually to the operation mode by feeding steam from the evaportor via bleed valve 29 to the inlet feed 24 to condensing coil 23 so that hot water passes through the condensing coil. In operation of evaporator 16, which forms part of a direct steam injection sterilising apparatus, liquid to be sterilised is heated by steam injection at 13 and then passes to chamber 17 in evaporator 16 kept at sub atmospheric pressure where part of the liquid flashes off and is condensed by cooling coil 22 and condensing coil 23 fed with cold water through pipe 24. To effect sterilization of the apparatus, pump 18 is shut off and the cold water supply to condensor coil 23 and cooling coil 22 is stopped so that the temperature and pressure in evaporator 16 builds up to 130‹C and 30 p.s.i. respectively.
Patent GB-1200748-A (GB)
Title: Improvements in divisible metal boxes for protecting joints between insulated electrical current carriers
Inventor: SYKES JOHN
IPC: H02G15/113
Filed: 1967-12-20
Abstract: 1,200,748. Electrical equipment housings. ENFIELD ROLLING MILLS Ltd. 20 March, 1969 [20 Dec., 1967], No. 57828/67. Heading H1R. [Also in Division H2] A divisible metal box, with entry ports, for protecting joints between insulated current carriers, e.g. a junction or distribution box, has at least part of its inner surfaces covered by a plastics lining applied by vacuum forming. The lining may overlap edges between abutting parts of the box. The box may be cylindrical or rectangular. The plastics may be PVC or ABS (acrylonitrile butadiene styrene).
Patent GB-1248610-A (GB)
Title: Grey cast-iron piston ring
Inventor: BEYER HORST
IPC: F16J9/26
Filed: 1968-12-06
Abstract: 1,248,610. Grey cast iron piston ring. GOETZEWERKE FRIEDRICH GOETZE A.G. Dec.6, 1968 [Dec.6, 1967], No.58173/68. Heading C7A. A piston ring is made of a grey cast iron having customary contents of C, Si, Mn and P and also containing up to 0À7% Cr and 0À1-1% W, the balance, apart from impurities, being Fe. Up to 70% of the W may be replaced by Mo but at least 0À1% W must remain. Alternatively the iron may contain: - and the tungsten may be replaced by Mo as above. The iron may also optionally contain 0À05-0À3% Sn. The rings may be annealed at 530‹ C. and cooled in air.
Patent GB-1447518-A (GB)
Title: Metal-casting components
IPC: C22C1/04
Filed: 1973-12-20
Abstract: 1447518 Sintered Mo base alloy parts GENERAL ELECTRIC CO LTD 21 Nov 1974 [20 Dec 1973] 59080/73 Heading C7A Parts of apparatus for use in metal casting (e.g. tools, dies, moulds and cores) are made of a sintered alloy consisting, apart from impurities, of:- and three or four of A powder mixture may be pressed at 5-50 tons per square inch and sintered in a reducing atmosphere at 1200-1500‹C, optionally after presintering at 800‹C. The final machined body may be annealed at 1000-1100‹C.
Patent GB-1380259-A (GB)
Title: Photographic process of rendering an auxiliary silver image bleach  resistant
IPC: G03C7/24
Filed: 1971-12-21
Abstract: 1380259 Rendering auxiliary silver image bleach resistant EASTMAN KODAK CO 21 Dec 1971 [22 Dec 1970] 59268/71 Heading G2E An exposed photographic element containing a latent picture image and a latent auxiliary image in different areas of a silver halide emulsion layer is processed to form a visible picture image comprising silver and dye and a visible auxiliary image comprising silver in the different areas, by contacting only the auxiliary image with an organic compound in solution which inhibits bleaching of the silver of the auxiliary image, and treating the entire area of the element with a bleach whereby silver is removed only from the picture image, said compound being a bleach inhibitor which satisfies a test given in the Specification and contains an acidic mercapto or acidic selenyl group, in acid or water-soluble salt form and has a molecular weight of at least 100 exclusive of the mercapto or selenyl group. The compound may have one of the formulae:- R<SP>1</SP> a -(A<SP>1</SP>)-XR<SP>5</SP>, R<SP>2</SP> a -(A<SP>2</SP>)-X-X-(A<SP>3</SP>)-R<SP>3</SP> a  and R<SP>4</SP> a -(A<SP>4</SP>)-X<SP>-</SP>Y<SP>+</SP> where a is 0 or 1-6; X is S or Se; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each NO 2 , halogen, alkyl, substituted alkyl or cycloalkyl having 1-22C, cyclohexadienyl, optionally substituted aryl, a 3-22C thio group, a 4-22C amido group, a carbonyl group, a carbamoyl group, alkoxy, benzyloxy, or anyloxy; R<SP>5</SP> is H or 1-22C acyl; Y + is a basic cation;.and A<SP>1</SP>, A<SP>2</SP>, A<SP>3</SP> and A<SP>4</SP> are each, carbonyl, thiocarbonyl, carboxymethylene, a carbocylic ring containing 3 to 6 C which can be part of a fused ring structure or a 3-6 membered heterocyclic ring containing at least 1C and 1-5 atoms selected from N, O, S and Se which ring can have other carbocylic and heterocyclic rings fused to it, the values of these symbols being subject to certain provisoes given in the Specification. The auxiliary image may be contacted with a mixture of the compound which inhibits bleaching and a diffusible onium salt e.g. hexadecyl trimethyl ammonium bromide. The solution may have a pH of 9-12 and may contain 0.1-2 wt per cent of a silver halide solvent, and may contain a thickening agent. The silver halide emulsion layers may contain colour couplers and the auxiliary image may be a sound track and be formed along one edge of the element.
Patent GB-1369690-A (GB)
Title: Methods of making or repairing thin film circuitry
IPC: H01L49/02
Filed: 1971-12-21
Abstract: 1369690 Printed circuits WESTERN ELECTRIC CO Inc 21 Dec 1971 [21 Dec 1970] 59326/71 Heading H1R A method of forming thin film circuitry, including a pattern of thin film material and a crossover conductor, on a substrate includes a process wherein material between said pattern and said crossover conductor generates a gas causing the cross-over conductor to bend outwards from the substrate. A short circuit between a gold beam crossover conductor, supported by gold pillars, and a gold crossunder conductor, formed on a bonding layer of titanium and platinum, is removed by first heating the ceramic substrate in air to between 250- 450 C. for 1-3 minutes before allowing to cool to room temperature. The substrate is then placed in a closed chamber evacuated to at least 50 torr. and a slurry of finely divided ammonium bicarbonate in water and an 8 molar solution of acetic acid are introduced on to the surface of the substrate resulting in the vigorous evolution of carbon dioxide which bows the gold beams upward and flushes any debris from the space beneath. Other specified substances which liberate gas in sufficient quantities may be used or alternatively a liquid or polymer material which contains foaming agents may be activated to expand and bend the crossover conductor. To remove any slender threads which may remain lodged between the crossover and the pattern the substrate is etched with a dilute aqua regia gold-etch.
Patent GB-1372104-A (GB)
Title: Packaged article
IPC: B65D81/113
Filed: 1971-12-23
Abstract: 1372104 Moulding packages SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 23 Dec 1971 59993/71 Heading B5A [Also in Division B8] An article, e.g. a grinding-wheel, is enveloped in a foamed plastics material which incorporates a plane of weakness along which the material may be made to cleave to remove the article, the plane of weakness being formed by including a sheet of the same material as the foamed plastics but of lesser density. In an example the article was supported on a block of expanded polystyrene in an aluminium mould equipped with a steam chest on two sides and drainage holes on the other sides. The sheet with a central aperture for the article was placed over the article and the mould filled with polystyrene beads. The mould was then heated by the steam. The article may be protected by a layer of paper or polyethylene.
Patent GB-1377610-A (GB)
Title: 5-piperidine-4-spiro- oxazolidinones method for their preparation  and applications thereof
IPC: C07D498/10
Filed: 1970-12-19
Abstract: 1377610 5 - (Piperidine - 4 - spiro) - oxazolidinones LABORATOIRES JACQUES LOGEAIS 30 Nov 1971 [19 Dec 1970] 60430/70 Heading C2C Novel 5 - (piperidine - 4 - spiro) - oxazolidinones of the general formula wherein R is a hydrogen atom or an alkyl, alkenyl, alkynyl or phenyl group, R<SP>1</SP> is a hydrogen atom or alkyl group, R<SP>2</SP> is a hydrogen or halogen atom or an alkyl group and B is an oxygen atom or a methylene, ethylene or -O-CHR<SP>3</SP>- group, in which the oxygen atom is bonded to the aromatic nucleus and R<SP>3</SP> is a hydrogen atom or alkyl group, and non-toxic acid addition salts thereof are prepared by condensing a 5-(piperidine-4-spiro)-oxazolidinone and a phenoxyethyl halide of the respective general formulµ wherein X is a halogen atom, followed optionally by salifying the product. Pharmaceutical compositions having adrenolytic activity comprise, as active ingredient, a 5-(piperidine-4-spiro)-oxazolidinone of the first general formula above or a non-toxic acid addition salt thereof, together with a therapeutically acceptable vehicle, arid may be administered orally or parenterally.
Patent GB-1254308-A (GB)
Title: Selective plating of plastics mouldings
Inventor: WHITE KENNETH ATHERLEY
IPC: B29C45/00
Filed: 1968-12-19
Abstract: 1,254,308. Electroless plating of plastics. BAKELITE XYLONITE Ltd. March 19, 1970 [Dec. 19, 1968], No.60464/68. Heading C7F. A plastics article is selectively plated with metal by making the parts to be plated of a "plateable" plastics and those parts not to be plated of a "non plateable" plastics. The article is made by a two-shot injection or compression moulding process. The articles are electroless or electrolytically plated by conventional methods with e.g. Ni followed with Cu, Ni and then Cr. Activation may be by Pd Cl 2  which may be colloidal.
Patent GB-1283349-A (GB)
Title: Thyristor circuits
Inventor: THOMPSON MICHAEL AINLEY
IPC: H02P7/29
Filed: 1968-12-23
Abstract: 1283349 Control of DC motors JOSEPH LUCAS (INDUSTRIES) Ltd 8 Dec 1969 [23 Dec 1968] 60990/68 Heading H2J [Also in Divisions G3 and H3] A continuously pulsed thyristor 15 controlling the speed of a motor 14 is commutated by firing a thyristor 18 to apply a reverse voltage on a capacitor 19 to thyristor 15, the reverse voltage having been created by firing a thyristor 22 in a ringing circuit after the firing and subsequent  commutation of thyristor 18 in the previous cycle. A circuit 23 samples the current through motor 14 to initiate firing pulses for the thyristor at a rate determined by a throttle pedal. The pulses are shaped in circuits 24, 25, 27. A circuit 26 produces a delay between the firing pulses for 18 and 22. When an input pulse is applied to monostable multivibrator T1, T2, R6, C1 (constituting circuit 26) T2 is turned off and T3, T4 are turned on to shunt current from a winding 32 in a single shot blocking oscillator T5,32- 34. When T2 regains its conductive state, a voltage is induced in winding 32, and the blocking oscillator operates to produce a firing pulse in an output transformer 34, 35. Firing circuits 24, 25 are similar to this circuit T3-T6, 34, 35.
Patent GB-1292341-A (GB)
Title: A zoom lens
IPC: G02B13/00
Filed: 1969-12-22
Abstract: 1292341 Objective lenses NIPPON KOGAKU K K 22 Dec 1969 [23 Dec 1968] 62312/69 Heading G2J A zoom lens system comprises a first positive lens group L 1  movable as a whole for focussing, said group L 1  consisting of a negative component L 1-1  and a positive component L 1-2  behind the negative component, the positive lens component being movable in the same direction as but a smaller amount than the negative component. The negative component L 1-1  is a doublet consisting of a positive meniscus element cemented to a double-concave element. The positive component L 1-2  consists of, from the front, a first doublet made up of a bi-convex element cemented to a negative meniscus element concave to the front, a second doublet made up of a negative meniscus element convex to the front cemented to a bi-convex element, and a positive meniscus element convex to the front. For this first group L 1  having radii R 1  to R 11  the following inequalities apply:- The zoom lens also comprises a movable second negative lens group L 2 , a third movable positive lens group L 3  and a relay system consisting of a fixed negative fourth lens group L 4  and a fixed positive fifth lens group L 5 . Optical data for one example of a lens system is given.
Patent GB-627369-A (GB)
Abstract: 627,369. Forging-machines. SMITH, S. July 19, 1947, No. 19380. [Class 83 (iv)] In a rotary swaging machine having a spindle a and a central die-head a<SP>1</SP> provided with dieblocks c acted upon through rollers e by a rotatable fly-wheel f mounted upon the diehead, the spindle and die-head are rotated, by mechanical means, such as a worm and wheel a<SP>4</SP>, a3 or a crank-operated lever, relative to the fly-wheel and rollers. The machine differs from that described in Specification 622,389 only in that the die-head oscillates.
Patent GB-643698-A (GB)
Abstract: 643,698. Ignition systems. LUCAS, Ltd., J. July 30, 1948, No. 20331. [Class 7 (iv)] [Also in Group XXXV] In an alternating current lighting and engine ignition system of the kind in which current from a generator a is supplied to a storage battery b through rectifying means c, switching means k, h is provided to enable the ignition apparatus to be connected either to the battery b and one part of the generator, jointly, or to another part of the generator only; the latter is used to facilitate starting. The switch may either be two separate but interconnected switches k and h as shown, or a combined rotatry switch. When the switch is in the neutral position the generator a is isolated from both battery and ignition system.
Patent GB-2025935-A (GB)
Title: Substituted 4,4'-biphenylyene bis (2-thioureylene)di- naphthalenetrisulfonic acids and salts thereof
IPC: C07C331/28
Filed: 1978-06-27
Abstract: Compounds having complement inhibiting activity are of the formula (I):   <IMAGE> wherein A is an alkali metal or alkaline earth metal and R is hydroxy or -SO<3>A, (wherein A is as previously defined); and the pharmaceutically acceptable salts thereof.
Patent GB-2024929-A (GB)
Title: Spark plug electrode
IPC: H01T13/16
Filed: 1978-07-07
Abstract: A central electrode 7 for a spark plug comprises a core 9 of a refractory material such as a nickel-chromium alloy, and a sheath 12 of thermally conductive material, such as copper, said core having a tip 11 which projects from one end of the sheath and which has a diameter greater than the internal diameter of the sheath and preferably equal to the external diameter thereof. The electrode is installed in a spark plug with the tip only projecting from the end of an insulating body 3 so that the sheath is protected from the working environment by the tip and the insulator but is nevertheless capable of conducting heat away from the tip. <IMAGE>
Patent GB-2027497-A (GB)
Title: Retaining sealing glands
IPC: F16J15/32
Filed: 1978-08-09
Abstract: Mechanical apparatus, such as a fluid flow control valve, comprises a housing 16 with a shaft 12 extending through a gland 32 located in the housing, part of the shaft projecting on the outside of the housing, and a gland retaining member 44 held captive in the housing, and thereby retaining the gland in the housing enclosure, by the combined effect of the engagement of the retaining member in a recess of the housing and on the shaft. Parts of the housing which engage with the retaining member prevent axial movement of the retaining member, and the shaft itself prevents radial movement of the retaining member. The retaining member may comprise a square plate with a bore 52 having a seal 54 receiving the shaft. Alternatively the bore may extend to an edge of the plate to define a U-shaped retaining plate. <IMAGE>
Patent GB-2040841-A (GB)
Title: A hydraulic pump with drive from a vehicle main gear box
IPC: B60K25/06
Filed: 1979-02-21
Abstract: A hydraulic gear pump housing 12 is designed to be secured to a gear box by a stud 11 and screws 8, 9, 10, all of which enter respective tapped holes at standard positions and spacings in the gear box rear cover. A dog-clutch or the like serves for selectively coupling and uncoupling the gear box P.T.0. to the pump, which provides oil under pressure to drive ancillary equipment. <IMAGE>