baber/WOPTO huggingface dataset:
Patent GB-1240740-A (GB)
Title: Method of and means for producing calorific energy
Inventor: SCHROEDER J
IPC: F24V30/00
Filed: 1969-09-26
Abstract: 1,240,740. Heating devices utilizing exothermic chemical reactions. PHILIPS GLOEILAMPENFABRIEKEN N.V. 26 Sept., 1969 [30 Sept., 1968], No. 47434/69. Heading F4X. [Also in Division C7] Sulphur hexafluoride is reacted with the melt of an alloy containing lithium and calcium to produce heat utilized, e.g. in a heat exchanger 10 to heat the working fluid of a hot gas engine, the ratio of lithium and calcium used in the alloy being such that the mixture of lithium fluoride and calcium fluoride formed during the reaction is a eutectic composition which is molten during the reaction. The reaction temperature may, e.g., be from 800-900‹ C., and the lower temperature may be extended to 700‹ C. it is said, by the addition of sodium and magnesium to the alloy. The heat exchanger 10 in the apparatus shown is immersed in the reacting media. Alternatively, the heat may be transferred through an intermediate heat transfer fluid such as a liquid sodium-potassium alloy. Sulphur hexafluoride is supplied (under pressure controlled by a valve 3) from a container 2 to the reaction space 1 containing the molten alloy. A mixture comprising reaction products and unreacted alloy is circulated by a pump 11 in a path (arrowed) formed by an open-ended container 9 disposed within a cylinder 8 in which also is located the heat exchanger 10. Some of the reaction products and unreacted alloy pass out of container 9 through a conduit 6 into a reserve container 5 where movement of the mixture is relatively slow and the reaction products (being heavier) separate out of the alloy which flows back into the reaction chamber 1 through a conduit 7. Sulphur hexafluoride is admitted at a higher rate as the concentration of reaction products increases in order to keep the temperature in the reaction space constant. This may be effected automatically by a thermostat controlling a gas valve (not shown) in the conduits 4. After the reaction has been finished, the latent heat of solidification of the molten fluorides becomes available. When starting up, the solidified alloy is melted by electric heaters (not shown). A container 13 of inert gas such as argon is in communication via a control valve 15 with the cylinder 8 and with the reserve container 5 via a conduit 16 and compressor 17.
Patent GB-1346663-A (GB)
IPC: F16D65/14
Filed: 1971-10-13
Abstract: 1346663 Brakes KLOCKNER - HUMBOLDT-DEUTZ AG 13 Oct 1971 [13 Oct 1970 9 July 1971] 47661/71 Heading F2E A vehicle brake comprises a pair of brake elements 1, 2 arranged in a brake housing 5 and a cam 18 which can be operated to force the brake elements apart thus pressing the braking elements, or causing the braking element to be pressed, against a brake surface or surfaces. The cam 18 is provided on a lever 17 which is freely pivotally mounted on an operating member 13, carried by a rotatable operating shaft 11, at a location spaced away from the longitudinal axis of the operating shaft 11. The operating shaft 11 is mounted parallel to the shaft 7 to be braked. In the construction shown the cam 18 is interposed between a pair of projections 9, 10, one being provided on each of a pair of thrust plates 1, 2. On the projections 9, 10 being urged apart the plates 1, 2 are also urged apart by balls 4 running in inclined grooves 3 in the facing surfaces of the plates 1, 2 to engage rotating brake discs 6. The arrangement provides a servo-effect. In a second embodiment the cam and its actuating arrangement are provided in an internal shoe drum brake (Figs. 3, 4 not shown).
Patent GB-1027300-A (GB)
Title: Electrical pulse shaping and delaying network
IPC: H03K5/159
Filed: 1964-11-24
Abstract: 1,027,300. Pulse circuits; delay lines. SPERRY RAND CORPORATION. Nov. 24, 1964 [Dec. 6, 1963], No. 47811/64. Headings H3T and H3U. A tapped delay line is provided with a changeover switch so as to permit operation either as a pulse delaying circuit or, when part of the line is short-circuited, as a circuit for reducing the duration of an input pulse. The tappings are connected to a pair of switches arranged to provide vernier adjustment of delay or duration. The output is fed via an emitter follower to an amplifier which removes pulses of unwanted polarity.
Patent GB-1334181-A (GB)
Title: Perambulators
IPC: B62B9/14
Filed: 1971-10-14
Abstract: 1334181 Perambulators G GESSLEIN 14 Oct 1971 [14 Oct 1970 14 July 1971] 47874/71 Heading B7B A perambulator comprises a frame supporting a trough-shaped body having a surrounding wall upstanding from the edges of a substantially rectangular base and formed, at least in part of a transparent material. A hood is detachably mounted on the body and means are provided for screening variable amounts of the transparent part of the wall; these means may comprise one or more opaque sheets releasably attached to the body. The body may be formed from a single sheet of transparent plastics material or have a detachable, partly transparent portion. The body wall may comprise two spacedapart layers. These may be of plastics sheet material, a valve being provided to inflate the space between the layers. One end of each side wall of the body may have an upper transparent part-which may form part of a detachable body portion-and a lower opaque part which may be provided with a raising and lowering mechansim. The mechanism may be mounted between the two spaced layers of the body wall.  Catches may be provided for securing the hood to either end of the body. The hood may be movable so as to overlap at least part of the transparent part of the body wall.  The opaque part of the body may be of a foamed plastics material.
Patent GB-1450508-A (GB)
Title: Depositing a thin film
IPC: H01L21/306
Filed: 1974-11-06
Abstract: 1450508 Photomasks; stripping compositions INTERNATIONAL BUSINESS MACHINES CORP 6 Nov 1974 [29 Nov 1973] 47936/74 Headings G2C and G2X [Also in Divisions C7 and H1 A film of e.g. Al, Al-Cu, Pt, Pd, Cr, Au, Ta, Ag, or Ti or silicon dioxide or nitride is formed as a pattern on a substrate of e.g. a semi-conductor which may have a silicon dioxide coating by (1) applying a coating of a non-photosensitive organic polymer (several examples are described but is preferably a cyclized rubber/azide composition and/or a novolak/naphthoquinone diazide positive photo-resist which has been baked to render it non- sensitive (2) evaporating a layer of inorganic material, e.g. Cu, Al, Cr, glass, silicon nitride or aluminium oxide, on the polymer, (3) forming a mask on the inorganic material by photo-resist techniques, (4) etching the desired pattern in the inorganic material, (5) using the layer of inorganic material as a mask, sputter etching the pattern in the polymer, for a time such as to form undercut openings, and (6) depositing, e.g. by sputtering, the required film. The sputter etching may be effected in argon, neon, oxygen or hydrogen. Finally the photo-resist layer is removed by a stripping composition comprising tetrachloroethylene, o-dichlorobenzene, p-dichlorobenzene and phenol. Alternatively N-methyl pyrrolidone strippers may be used.
Patent GB-1045760-A (GB)
Title: Processes for preparing steroid compounds and products obtained by these processes
IPC: C07J41/00
Filed: 1963-12-06
Abstract: Novel syn- and anti-oximes of degraded pseudosapogenins, having the partial structural formula <FORM:1045760/C2/1> where only the D-ring is shown and Ac represents an acyl group, are obtained in a process in which an ester of a pseudosapogenin is reacted with a nitrite to give a 16-(11-acyloxypentanoyl) derivative of 20-oximido-pregnane. Treatment of the resultant oxime with acid gives the corresponding 20 - oximido - 16,17 - dehydro steroid.
Patent GB-1443117-A (GB)
Title: Polyols containing halogen and phosphorus and process for making them
IPC: C08G79/04
Filed: 1974-11-08
Abstract: 1443117 Polyurethane foams HOECHST AG 8 Nov 1974 [9 Nov 1973] 48427/74 Heading C3R [Also in Division C2] Polyurethane foams are flame retarded by incorporating in the foam-forming mixture a polyol of Formula I where A is A<SP>1</SP> is B is Cl-CH 2 -CH 2 -O-, R is optionally halogen-substituted C 2-6  alkylene, phenylene or diphenylenemethane optionally substituted by alkyl or haloalkyl on the methylene C atom, one of R 1  and R 2  is H and the other is C 1-4  alkyl or haloalkyl or R 1  and R 2  are each C 1-4  alkyl or haloalkyl, x + y is 0À1 to 3 and n 1 or 2. In an example the polyurethane is formed from a partially branched polyether polyol based on propylene oxide and toluylene diisocyanate (80 : 20 blend of the 2,4- and 2,6- isomers).
Patent GB-1493920-A (GB)
Title: Door assemblies
IPC: E05D15/42
Filed: 1973-10-18
Abstract: 1493920 Up-and-over door operating mechanism WESTLAND ENGS Ltd 20 Jan 1975 [18 Oct 1973] 48717/73 Heading E2M In an up-and-over door arrangement a door closure member 10 which moves from a substantially vertical closed position (Figure 1, not shown) upwardly to an overhead open position shown in Figure 2 so that a part of the door closure member projects from the door opening to form a canopy 24, the closure member 10 is provided with rollers 22 mounted at either side of the upper part thereof for co-operation with substantially horizontally disposed guide tracks 23 arranged to project into the building in which the assembly is installed, the door closure member 10 being counterbalanced by a spring actuated lever arm 12 during the opening movement thereof and latch means 25, 27 for holding the door closure member 10 positively in the open position. The latch means comprises spring-loaded latch bolts 25 adapted to engage with keeper plates 27 on the guide tracks 23 and adapted to be released by tension being applied to a cable 28.
Patent GB-1123069-A (GB)
Title: Improvements in barrier fencing and apparatus for manufacturing the same
Inventor: VANDENBROUCKE OCTAAF
IPC: B29C48/05
Filed: 1965-11-17
Abstract: 1,123,069. Extrusion-moulding nets. TREFILERIES LEON BEKAERT P.V.B.A. 9 Nov., 1966 [17 Nov., 1965], No. 48871/65. Heading B5A. [Also in Division El] An extruded net-like barrier fence comprises warp strands 21, Fig. 4, of wire 9, e.g. steel wire, covered with synthetic plastics material, e.g. polyethylene or PVC, and weft strands of plastics material only. Various configurations are described, Figs. 3, 5 and 6 (not shown), with the main structural difference being the provision of wire reinforcement in some only of the warp strands, e.g. the boundary warp strands (22), Fig. 6 (not shown). Specific uses mentioned for the fencing are as an anti-dazzle barrier or for enclosing tennis courts. The warp and weft may have any desired cross-sectional shape. As an example, an anti-dazzle barrier might have warp strands of circular orosssection and weft strands of an elongated diamond cross-section. Apparatus for making the fencing comprises a screw-impeller (5), Fig. 1 (not shown), which forces plasticized material around wire guide tubes 8, Fig. 2, into the nip between a pair of co-operating grooved rollers 3, (4). Wires 9 pass through the extrusion orifices formed by mating circumferential grooves 7, and are there coated with the plastics material, and the weft strands are formed by flow of the plastics material along mating grooves 11. Only one of rollers 3, (4) may be grooved to form the weft strands.
Patent GB-1195389-A (GB)
Title: Improvements in or relating to Jacketed Vessels
IPC: B01J19/02
Filed: 1967-10-30
Abstract: 1,195,389. Heating and cooling liquids in bulk. SYBRON CORP. 30 Oct., 1967 [7 Nov., 1966], No. 49228/67. Heading F4S. A jacketed vessel comprises a glass lined inner metal tank 12 and an outer jacket 14 joined thereto by top and bottom connectors 36, 26 respectively to form a chamber 28 for circulation of a heating or cooling fluid, the outer end of the connector 36 being provided with a reinforcing ring 34 of rectangular or circular cross-section. The connector 36 is in the form of a truncated cone of cone angle between 50 and 60 degrees from the horizontal and of 0.6 the wall thickness of the tank 12, and is welded to the tank before the glass lining is fired and then either welded to the ring 34 or directly to the top of jacket 14, in which case the ring 34 is welded to connector or jacket at the point of contact. The bottom connector 26 includes a flexible annular diaphragm.
Patent GB-1162990-A (GB)
Title: Electrical Connector and Contacts Therefor
Inventor: ZAK ALFRED MARION
IPC: H01R13/432
Filed: 1966-11-04
Abstract: 1,162,990. Two-part couplings. A. M. ZAK. 4 Nov., 1966 [8 Nov., 1965; 28 March, 1966],No. 49514/66. Heading H2E. An electrical contact comprises a hollow portion 28 adapted to fit within a bore in an insulating block 12, Fig. 1, and having a tab 58 stamped out of one side and passing across the hollow portion at an acute angle to project through an opening in the upper side of the portion 28, the tab being adapted to engage a shoulder on the block to limit movement of the contact in one direction in the bore. The electrical connector, Fig. 1, comprises two such contacts 14, 16 crimped to electrical conductors and mounted respectively in insulating blocks 10, 12, being retained in position by resilient tabs 56, 58 engaging shoulders 67, 65, movement of the contacts in the opposite directions being limited by non-resilient projections 40, 48. One contact 16 carries a nose portion 74 fitting inside a hollow end portion of the other contact 14 and carrying a projection 78 which snaps into a hole 84 in contact 14. In a modification, Fig. 7 (not shown), each tab is bent out of its corresponding body portion at a steep angle, traverses the contact at a shallower angle and finally passes through the opening on the other side of the contact at an angle roughly perpendicular to the axis of the contact. Each contact may be removed from its insulating block by inserting a tool 92, Fig. 5 (not shown), through its open end to depress its resilient tab.
Patent GB-1534210-A (GB)
Title: Microwave circuit
IPC: G01S13/56
Filed: 1977-11-29
Abstract: 1534210 Radar transmitter/receiver/antennae unit STANDARD TELEPHONES & CABLES Ltd 29 Nov 1977 49605/77 Heading H4D A compact transmitter/receiver/antennae unit of triplate construction comprises a ground plane on each side; transmitter and reciever antennae slots in one ground plane; one stripline between the ground planes and coupled to the transmitter antenna slot(s) and to a transmitter semiconductor oscillator; and a second stripline between the ground planes and coupled to the receiver antenna slot(s) and to a mixer semiconductor device. The unit is useful in a Doppler intruder alarm, in a collision avoidance radar, or as a communications transceiver.
Patent GB-1404725-A (GB)
Title: Seals
IPC: F16J15/34
Filed: 1973-10-25
Abstract: 1404725 Hinge seals CATERPILLAR TRACTOR CO 25 Oct 1973 [25 Oct 1972] 49814/73 Addition to 1349606 Heading E2F [Also in Divisions B7 and F2] The seal for a track link 13 as described in the parent Specification 1349606 is provided with a circular section load ring 45 instead of a polygonal section one. In the assembled condition the load ring may assume the polygonal section illustrated. The flexibility of the hinge section 51 may be improved by the provision of a groove 83. The load ring 45 may be made of rubber and the seal ring 43 of polyurethane.
Patent GB-1402649-A (GB)
Title: Electrical circuits
IPC: G05D3/14
Filed: 1972-10-30
Abstract: 1402649 Automatic control systems BRITISH AIRCRAFT CORP Ltd 25 Oct 1973 [30 Oct 1972]  49900/72 Headings G3N and G3R [Also in Division H3] In a servosystem having a digital to analogue converter for a demand signal, a comparator for producing an error signal from the demand and a measured value signal, and a servomotor to adjust the measured value to reduce the error to zero, a non-linear filter having an impedance which decreases with increasing signal amplitude is connected between the d. to a. converter and the comparator. The object is to prevent hunting of the motor due to the step nature of the digital origin of the demand signal; these steps are smoothed while changes in demand are substantially unaffected. In the embodiment, a Pitot tube I in the nose of an aircraft provides two pressure signals to an A-D converter 2 from which Mach number is determined in a digital processor 3 which then predicts what the pressure should be in a variable area void 4 in the engine air intake 5, which is adjusted by movement of a flap 6. The actual pressure is measured at 4, and 3 derives the pressure error from which a computer 10 calculates the necessary flap angle. The output of 10 constitutes the "demand signal" of the invention; it is converted to analogue form at 12 and filtered as specified at 13, compared with the measured flap angle at 15 and the resulting error signal operates an electro-hydraulic servomotor 16, 17. Suitable filters, comprising RC networks and diodes, are disclosed Figs. 2 and 4 (not shown). (See Division H3).
Patent GB-1087369-A (GB)
Title: Apparatus for use in cooking eggs
IPC: A47J29/02
Filed: 1965-11-25
Abstract: 1,087,369. Electric egg cooker. W. E. RAJAKARUNA. July 19, 1966 [Nov. 25, 1965], No. 50065/65. Heading A4D. An apparatus for dry cooking eggs comprises a container 1 (Fig. 1) with a holder 22 for eggs permanently or removably located therein, an electric heating element 5 for heating the eggs by circulation of hot air, a timing device 9 and a spring loaded closure 19 such that after closing the closure and switching on the current the timing device will operate after a predetermined period of time to switch off the current and open the closure. The container 1 is divided into a cooking compartment and an operating mechanism compartment by a heat shield 41 abutting a transverse partition 42. Electric current to the heating element is taken through a thermostat 8 e.g. a bimetal strip fitted to the lower surface of a plate 6. Between the holder 22 and the heating element 5 is a perforated or slotted corrugated plate 2. The timing device (Fig. 7) comprises a spring switch 9 in circuit with the heating elements 5 having a movable part 40 and a pivoted member 11 making latching engagement with the end of a spring loaded arm 16 integral with the lid 19 and which engages the movable part 40 of the spring switch by means of an adjustable lockable screw 7. The member 11 is held in its normal position (as shown) by one arm of a bell crank 12 pivoted at 12<SP>1</SP> the other arm being engaged by a rod 14 which passes freely, and to a limited extent, through the top wall of the compartment and has a button 13 at its head for manual operation. A movable member 18 loaded by a spring 21 passes through a slot in the end of member 11 and after activation of the switch 9 by pressing on the head 18<SP>1</SP> to depress member 40 the return movement of the latch after a preset delay rocks member 11 so that it releases the arm 16 and allows the lid 19 to open under the action of the spring 17. In a modified form the lid slides inwards or outwards to close and open the cooking compartment (Figs. 4 and 5) (not shown). In a further embodiment the apparatus is of cylindrical construction (Fig. 6) (not shown) and comprises a hollow outer casing (50) within which is a slidable inner casing or egg carrier (51) and a detachable base (52). When the carrier is pressed down the timing device in the base of the outer casing is activated and the electric circuit closed.
Patent GB-1425107-A (GB)
Title: Back-up battery arrangement for a heart pacer
IPC: A61N1/378
Filed: 1973-10-29
Abstract: 1425107 Heart pacer battery system AMERICAN OPTICAL CORP 29 Oct 1973 [27 Oct 1972] 50273/73 Heading A5R [Also in Division H2H] A heart pacer has connected across its pacer circuit in parallel two power sources one of which has a rapid terminal failure characteristic such as that obtaining in nuclear cells, the other having lower output voltage and a slow terminal failure characteristic there being a separate diode in series with each source. A heart pacer implantable in a body may comprise a circuit 10, characterised by an increase in pacer rate with falling power source voltage. A power source 2 having a rapid terminal failure rate may be a nuclear cell type giving 6.75v to supply the pacer through a diode 4 with 0.25v potential drop. A second power source which may comprise a lithium battery 6 with a solid inorganic electrolyte giving 5.4v, having a long shelf life and an operating life of 2 to 3 months is also connected to supply the pacer circuit through a diode 8 with a 0.25v potential drop. The implanted pacer circuit may be set to operate at approximately 72 beats per minute when taking power from the source 2, source 6 being isolated by the diode 8 which is reverse biased. On failure of the source 2 the diode 4 is reverse biased and the source 6 supplies power at 5.15v to the pacer circuit which, according to its characteristic, increases its beat rate to 80 per minute thus giving readily discernible indication of the failure of the main power source.
Patent GB-1597150-A (GB)
Title: Method of producing a static mixer device
IPC: B01F5/00
Filed: 1977-12-02
Abstract: The stack for the mixing device consists of individual layers (11a, 11b) assembled from sheet metal strips (13) which leave open flow channels (12). The two adjacent layers touch on bearing points (13b) of the edges (13a) and are there welded together. This is done in one pass with the aid of electrical resistance welding under pressure. The welding electrode arrangement has two electrodes (14, 15) with mating surfaces (14a, 16a), the one electrode (15) being provided with a layer (16) of an electrically insulating material. As soon as the two mating surfaces (14a, 16a) are brought into contact, the interior of the two electrodes forms a cavity corresponding to the shape of the stack to be welded together. Inserted into the one electrode there are mandrel-shaped insulating bodies (17) arranged in a gauge-like manner, which serve for feeding in the layers (11a, 11b) consisting of sheet metal strips (13). <IMAGE>
Patent GB-1423764-A (GB)
Title: Resistors for spark plugs
IPC: H01C7/00
Filed: 1973-10-30
Abstract: 1423764 Resistors NIPPONDENSO CO Ltd and TOYOTA CHUO KENKYUSHO KK 30 Oct 1973 [17 Nov 1972] 50396/73 Heading C1M Resistors for spark plugs consist of a glass and a resistive component the latter comprising by weight aluminium phosphate 4 to 20%, tin oxide 72 to 95%, and antimony oxide 0À8 to 9À6%. The glass is preferably borosilicate glass and is in an amount of 10 to 60% of the total weight of the resistors. The antimony oxide may be Sb 2 O 2  or Sb 2 O 4  and the tin oxide SnO or SnO 2 . The resistor is produced by mixing the tin and antimony oxide and heating to cause them to react together. Aluminium phosphate is then added and the mixture further heated. Glass and a binder such as polyvinyl alcohol is then added.
Patent GB-1446415-A (GB)
Title: Beet harvesters
IPC: A01D17/10
Filed: 1972-11-02
Abstract: 1446415 Beet harvester RANSOMES SIMS & JEFFERIES Ltd 1 Nov 1973 [2 Nov 1972] 50584/72 Heading A1F Means for cleaning beet in a harvester consist of: a conveyor 2, supported on arms 3, onto which beet are delivered from lifting wheels 1; a stationary cleaning web 6, consisting of a series of transverse rods 7 connected together by links 8, which can be raised and lowered at its ends by means of studs engageable in holes 9 in the supporting arms 3; and a cage 4 and spider wheel 5. For harvesting beet from dry and friable soil the web 6 is raised so that only the relatively gentle action of the cage and spider wheel performs any cleaning function. In wet and muddy conditions the web is lowered so that beet are rubbed and scraped by the rods prior to treatment in the cage and spider wheel mechanism. The web 6 may be replaced by a series of rotatable rubber flails moveable towards the conveyor.