baber/WOPTO huggingface dataset:
Patent GB-900525-A (GB)
Title: Improvements in heat insulation material
Inventor: HNILICKA MILO PELC
IPC: E04B1/74
Filed: 1960-10-24
Abstract: 900,525. Storing liquifled gases; heatinsulated pipes. NATIONAL RESEARCH CORPORATION. Oct. 24. 1960, No. 36448/60. Classes 8(2) and 99(2). Heat insulation media disposed within the evacuated space between the inner and outer walls of a double-walled liquefied gas e.g. oxygen container comprises twenty or more thin layers of metal-coated non-metallic sheet material loosely wrapped round the outer surface of the inner wall. Crimped aluminium-coated polyethylene terephalate film provides a heat transfer barrier having an effective thermal inductivity of less than 1 microwatt/cm‹K. at a vacuum of less than one micron mercury gauge and at a stored gas temperature of below 100‹K. The insulation may be wrapped round a liquefied gas conduit passing through a vacuum chamber.
Patent GB-522541-A (GB)
Title: Improvements in or relating to automatic installation switches
IPC: H01H73/18
Filed: 1938-12-14
Abstract: 522,541. Arc-rupturing in switches. PATENTVERWERTUNGS-GES. HERMES. Dec. 14, 1938, No. 36468. Convention date, Dec. 14, 1937. [Class 38 (v)] In a switch wherein the contacts are arranged in a closed arc chamber located in a magnetic. blow-out field, plate-shaped ferromagnetic parts are disposed in the arc chamber with the larger surfaces thereof extending substantially in the direction of the magnetic field and such that their distance apart increases in a direction extending away from the switching contacts. As shown, switch contacts 3, 4, adapted to be bridged by a movable contact 5 are mounted in an arc chamber 1 formed in an insulating member 2, e.g., of ceramic material , and closed by a magnetic plate 23 forming part of the magnetic circuit of the blow-out magnet 13, 14, which has an armature 15 operating the switch actuating mechanism through a rod 25. Arranged substantially radially around the switch contacts are ferromagnetic plates 10, Fig. 1. These plates are arranged in pairs, each pair being secured by insulating elements 24 forced between bent over extensions of the plates 10 housed in recesses 6 in the member 2. The arc is thus extended by the magnetic field towards the plates 10, enters between the plates of each pair and finally enters the recesses 6 the plates exerting a quenching effect during this time. In addition the elements 24 and the covering 22 of the magnetic cover plate 23 are made of an insulating material, e.g., cellulose which on, heating by the arc emits de-ionising gases. The plates 10 and the switch contact 5 may be coated with cadmium or a similar substance having a de-ionising effect on the arc.
Patent GB-1117535-A (GB)
Title: Soldering electrical components to substrates
Inventor: SHAW BRIAN HERBERT
IPC: H01L21/00
Filed: 1966-08-16
Abstract: 1,117,535. Soldering. STANDARD TELEPHONES & CABLES Ltd. 16 Aug., 1966, No. 36534/66. Heading B3R. Apparatus for soldering a component having solder coated electrodes to metallized bands on a substrate comprises a support 10 for the substrate, an electrically heatable tool to hold the electrodes in contact with the substrate and to apply heat by conduction to the electrodes to melt the solder thereon, means 25 to apply a force to the tool to urge it into contact with the component, temperature sensing means in thermally conductive contact with the tool and an electrical power supply controlled by the sensing means. A platform 6 supports a holder 2, having a flux bottle 4 and dishes 1 for semiconductors dies having solder coated electrodes, on a pillar 5 and supports arm rests 7, 8 by ball and-socket joints 8. A substrate support 10 consists of two relatively rotatable parts separated by a P.T.F.E. washer and is mounted movably on another pillar and a further pillar 15 on the platform carries a soldering tool assembly 16 and a microscope assembly 17. The tool assembly comprises an arm 20 clamped to the pillar 15 which carries a tool by means of leaf springs 21. The tool comprises large area current supply members bridged by a heating member of small area which is ground flat to contact the back face of the semi-conductor die and to which is bonded a thermocouple to control the current supply. A coil spring 25 operated by a lever 26 urges the tool towards the support 10. In operation with the die to be bonded in position on a substrate the tool is lowered to apply a load to the die and the power supply is energized to pass a heavy current through the heating member. The temperature is maintained by the thermocouple control and then power is cut off and the bond cools. The substrate may be pre-heated by a separate heater in the support 10.
Patent GB-1245392-A (GB)
Title: Silicon nitride products
Inventor: LUMBY ROLAND JOHN
IPC: C04B35/593
Filed: 1967-08-09
Abstract: 1,245,392. Silicon nitride products. JOSEPH LUCAS (INDUSTRIES) Ltd. 8 Nov., 1968 [9 Aug., 1967], No. 36591/6.7. Heading CIA. [Also in Division C7] Silicon nitride products are made by pressuresintering a mixture of silicon nitride powder and a flux, which is zinc or a suitable compound of zinc, such that the flux is volatile and is removed during the pressure-sintering operation. The amount of flux present is preferably less than 10% by weight. The process may be carried out at 1740‹ C. and 4000 p.s.i.
Patent GB-500714-A (GB)
Title: Improvements relating to electrical transmission systems
Filed: 1937-05-07
Abstract: 500,714. Electric signalling systems. SPERRY GYROSCOPE CO., Ltd., HARDING, W. C., and NISBET, R. H. May 7, 1937, No. 36627/38. Divided out of 498,738. [Class 40 (i)] Signals from a transmitter of the step-bystep type or of the selsyn " type are used to excite the windings of a constantly running generator so that receivers can be supplied with currents for positioning them. In Fig. 1, the generators 62, 63 and 64 are driven by a motor 65, and their field windings 67, 68 and 69 are energized by a step-by-step transmitter 70. Each segment 71, 72, 73 of the transmitter is connected to the negative terminal of the D.C. supply through a field winding and the contact brushes 74 and 75 are connected to the positive terminal. The field windings are energized singly or in pairs as the contact brushes rotate. The negative brushes of the generators are all connected to a line 76 so that four lines 76 to 79 are necessary. A three-line system using three generators is also described. In Fig. 3, a single generator 86 is used, the transmitter being similar to that in Fig. 1. The transmitter segments 71<1>, 721 and 731 are connected to equidistant tapping points on the stator winding. The rotor has a commutator connected to a closed winding and three brushes 80, 81, 82 spaced 120‹ apart rest on the commutator so that the voltages between the pairs of brushes are proportional to the excitation currents in the windings 67<1>, 68<1> and 69<1> of the stator. The brushes 80, 81 and 82 are connected through compensating windings 83, 84 and 85 on the stator to the lines 77<1>, 78<1> and 791 respectively. These compensating coils prevent distortion of the exciting field by the currents withdrawn from the rotor. Specification 433,494, [Group XX], is referred to in the Provisional Specification.
Patent GB-1516316-A (GB)
Title: Sales or display packages
IPC: B65D65/46
Filed: 1975-10-15
Abstract: 1516316 Packages IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Oct 1975 [21 Aug 1974] 36740/74 Heading B8C A package comprises a garden implement and a water-disintegrable peat support block formed to accommodate and support the implement. Dried powdered peat may be mixed with water and optionally with a binding agent to give a mix with a water content not greater than 20% by weight. The mix is then compressed to between <SP>1</SP>/ 6  and # its original volume and subsequently dried in an oven at 60‹ C. The binding agent may be cellulose, polyvinyl alcohol, gum acacia or gum tragacanth. A surfactant may be included. The implement may be a garden tool, a pesticide container, or a group of identical or complementary articles. The peat may contain plant nutrients, fertilizers or pesticides.
Patent GB-1014821-A (GB)
Title: Apparatus for making pasties, turnovers and the like
IPC: A21B5/02
Filed: 1960-12-26
Abstract: 1,014,821. Pivoted mould parts; turnovers. B. PICK. March 26, 1962 [Dec. 26, 1960], No. 36758/60. Heading B5A. An apparatus for making pasties, turnovers and the like, comprises means pivotally mounting two half moulds in a juxtaposed, substantially co-planar horizontal position for receiving pastry and any desired filling, means for pivoting the half moulds to a vertical moulding position in which the half moulds extend face to face, and means for returning the half moulds to the horizontal position. In one embodiment two serrated edge half moulds 8, 9 (Fig. 1), which may be of any shape or size, are secured to shafts 16, 17 mounted in polygonal recesses in bushes 18, 19 and in bearings in an adjustable cross frame member 7. The bushes are connected to pinions 22, 23, mounted on either side of a rack 24 which is caused to move downwardly, in slots in side frame members 2, 3, by a bell crank lever 31 to close the half moulds. A spring 32 returns the bell crank lever and thus the mould parts to their original position after moulding. Alternatively the mould halves may carry the bushes 18, 19 to mate with shafts connected to the pinions. In the other embodiment the half moulds, mounted on pivot pins 49 (Fig. 5), rest on side members 60, 61 connected to a slide 56 movable to the left and right (Figs. 5 and 7) by a lever 54 so that as cam surfaces 62, 63 on the members 60, 61 move to the left the mould parts are raised to the closed vertical position. Levers 66, 67 are pivoted to the frame at 68 and pass through slots 64 &c. in the slide 56 so that the levers move with the movement of the slide. On the levers are stirrups 72, 73 connected to the frame by springs 70, 71 and to the half moulds by cords 80, 81 so that the mould opens when the cam surface moves from underneath it.
Patent GB-777983-A (GB)
Title: Improvements in or relating to magnetrons
Inventor: HEATHCOTE VINCENT ALBERT
IPC: H01J25/587
Filed: 1954-12-20
Abstract: 777,983. Cooling magnetrons. M-O VALVE CO., Ltd. Dec. 16, 1955 [Dec. 20, 1954], No. 36840/54. Class 39(1). A magnetron of the type including within an evacuated envelope an anode cavity resonator system spaced round a cylindrical cathode has the cathode 13, Fig. 2, in the form of an outer metal tube the outer surface of which is provided with emissive material 17 and within which is arranged an inner metal tube 15, thermally conducting vanes 14, Fig. 1, extending across the space between the tubes, in which space are also located heater elements 18, and the inner tube 15 is connected to a fluid-supply tube 21 which is sealed through the envelope and through which a stream of cooling liquid can be passed. The inner tube 15 can be in open communication with the fluid supply at both ends or as shown one end 23 is sealed and a second fluid flow pipe 24 is provided internally of the inner tube 15 and its supply connection 21. The vanes 14 may be integral with either the inner tube 15 or the outer tube 13. The tube 21 is supported within a tube 19 and both tubes 19, 21 act as leads for the heaters 18.
Patent GB-1191929-A (GB)
Title: An Assembly of a Frame Member and an Insertable Unit Member Releasably Connected to the Frame Member
IPC: F16B21/16
Filed: 1967-08-11
Abstract: 1,191,929. Electric component assemblies. TEKTRONIX Inc. 11 Aug., 1967 [17 Aug., Division E2] An assembly of a frame member 12 and a unit member 10 including means permitting the releasable connection of the members, comprises a first means for latching the unit member in an operative position in the frame member and a second means mounted on the unit member and slidably engageable with the first means for disengaging the first means so that the unit member may be withdrawn from the frame member, the second means including actuating means for the first means for unlatching the unit member and for withdrawing the unit member from the frame member. As shown, in which the frame member 12, may comprise a housing for an electronic device the frame member and unit member 10 are provided with interengaging rails 18, 19 respectively and a latch pin 20 is resiliently mounted on the unit 10 and normally protrudes through an aperture 23 in a sidewall 24 of the unit member into the track of rail 18 between sides of the rail 19. The rail 18 includes a ramp portion 28 which displaces the pin 20 as the unit is slid into the frame member 12. A bore 30 for a spring-loaded plunger 34 extends into rail 18 and an aperture 32 extends through the rail 18 into the bore, the arrangement being such that as the unit is slid into the frame member the pin 20 is first displaced by the ramp 28 and thereafter drops through the aperture 32 and abuts the plunger 34. Removal of the unit is effected by a pull on a handle 48 of the plunger, which lifts the pin 20 sufficiently to clear the aperture 32 to free the unit member 10 from the rail 18.
Patent GB-797879-A (GB)
Title: Improvements in or relating to machines for making sausages
IPC: A22C11/02
Filed: 1956-12-03
Abstract: 797,879. Sausage filling. GUNTHER, A. [trading as PROBST & CLASS]. Dec. 3, 1956 [Dec. 1, 1955], No. 36937/56. Class 28 (2). Sausage meat from a mincer 1 passes through a 3-way cock 2 to direct the meat to one or other of two or more filling nozzles 3. An overflow tube 4 directs excess meat back to the mincer and helps to rid the meat of entrapped air. The meat may pass through a quantity or weight apportioning device, operated manually or by an independent drive. A looping and a tieing device beyond the nozzles 3 may provide links in the sausages. An attachment for filling tins, jars, tubes, &c. may be added. Ground rind, skin and gristle, ice water, salt and spices may be added to the meat in the mincer to be mixed with it. U.S.A. Specification 2,749,053 is referred to.
Patent GB-1221590-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01S5/30
Filed: 1968-08-05
Abstract: 1,221,590. Electroluminescence. SIEMENS A.G. 5 Aug., 1968 [4 Aug., 1967], No. 37206/68. Heading C4S. [Also in Division H1] A device which is under mechanical stress at the operating temperature is made by epitaxially depositing a semi-conductor material at an elevated temperature on a substrate of different thermal expansion co-efficient. The stress controls the charge mobilities in selective directions and enables temperature change compensations and controlled characteristics to be attained. A laser with a reduced threshold current may be formed by epitaxially depositing N-type arsenide of gallium or indium doped with 10<SP>18</SP>-10<SP>19</SP> atoms/c.c. of sulphur, selenium or tellurium on a 111 surface of a degenerate N-type silicon monocrystalline wafer and forming a P-type layer degenerately doped with zinc or cadmium thereon. Deposition is effected at 1000-1400 C. from a gaseous mixture of the chlorides of gallium and arsenic, dopant, and hydrogen or argon, and gives rise to tension in the plane of the junction. A luminescent diode is similarly formed save that the regions are less highly doped.
Patent GB-915670-A (GB)
Title: Relay control circuits
IPC: H01H47/00
Filed: 1961-10-18
Abstract: 915,670. Relay arrangements. SMITHCORONA MARCHANT Inc. Oct. 18, 1961 [Dec. 5, 1960], No. 37335/61. Class 38 (4). A relay arrangement providing successive energization and release of two relays A, B in that order comprises a rectifier D connected across the paralleled relay windings through normally open contacts B1 and normally closed contacts B2, respectively. Momentary closure of a switch PB energizes the relay A by earthing lead 10 through the rectifier D, which lead is also earthed by self-holding relay A contacts A 1 . Release of switch PB removes the earth from wire 16 energizing relay B which closes B 1  and opens B 2 . The second closure of PB earths wire 12 releasing relay A and opening contacts A 1 , but relay B is maintained energized through rectifier D and switch PB until PB is released. A rectifier S and resistor R 3  absorb voltages induced in the relay windings. The switch PB may be replaced by a transistor, and the relay A may be energized through another transistor to shorten the operating time. Switches X, Y are provided to initially set the circuit into its energized or released condition respectively.
Patent GB-1111549-A (GB)
Title: A switching system
Inventor: HACKETT JOHN ARTHUR
IPC: H04Q3/545
Filed: 1965-09-02
Abstract: 1,111,549. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. 2 Sept., 1965 [8 Oct., 1964], No. 37473/65. Heading H4K. In an exchange having a plurality of incoming trunks, each trunk is provided with an individual counter for counting up to n impulses of the first incoming digit. Impulses in excess of n and all impulses of subsequent digits are recorded in a pulse receiver allotted to the trunk. The invention is particularly applicable to working between exchanges of different type, e.g. step-by-step and common control whereby a subscriber to the first exchange may dial a complete number without waiting for a second dial tone to be reverted from the second exchange. In effect, the trunk absorbs the first n impulses whilst waiting for a free pulse receiver to be connected thereto. At the end of the first digit the count in the pulse receiver is automatically increased by n. In practice n = 2. If the receiver is connected before the trunk counter has counted up to 2, it being apprised of this by the potential on the ring conductor, it ignores impulses up to 2 and then stores further impulses above 2 which are repeated from the trunk over the tip conductor. The store includes five relays for counting the impulses and a translator for converting the various operative conditions of the relays into a binary code that is stored in a ferrod store associated with each receiver. A pair of control relays in the receiver determine whether it is the first or later digit which is being received in order, if necessary, to increase the count by n, by operating their contacts in the contact tree of the translator. The control system of the exchange may encounter delay in allotting a receiver and if so it operates a relay in the latter whereby, if it is determined from the potential on the ring conductor that n impulses have already been stored in the trunk counter, reorder tone is reverted to the caller. The ferrods and ferrod scanners are of the type described in Specifications 980,704 and 1,045,013. The control system is of the programmed type described in Specifications 1,081,811 to 1,081,817.
Patent GB-1343528-A (GB)
Title: Substitute product for nonfat dry milk and method for forming
IPC: A23C21/06
Filed: 1971-08-10
Abstract: 1343528 Non fat milk substitute FOREMOST-McKESSON Inc 10 Aug 1971 [20 Aug 1970] 37522/71 Heading A2B A substitute for non-fat milk is prepared by mixing aqueous whey with an amount of calcium hydroxide sufficient to form a whey buffer complex at a pH in the range of 7.5 to 9.0 in which calcium is uniformly distributed in a complex form which is capable of the controlled release of dissociated calcium ions to yield a low concentration of said ions, and then adding and dispersing thoroughly from 6% to 29% casein throughout said buffer complex to form a stable dispersion of calcium caseinate distributed throughout the whey, a large portion of the caseinate being complexed with the whey through divalent calcium bridges. Phosphate, preferably the sodium salt thereof, may be added to the resultant dispersion so as to form a complexed network having calcium and calcium phosphate bridges between portions of whey and caseinate, this product having a pH of 6.0 to 7.2. The product may be dried to a powder and mixed with dry particles of an alkali metal caseinate to form a product having a high protein content.
Patent GB-1431139-A (GB)
Title: Drawing apparatus
IPC: B43L13/02
Filed: 1974-08-28
Abstract: 1431139 Drawing board L E F SAUTEREAU 28 Aug 1974 [14 Sept 1973 3 July 1974] 37620/74 Heading B6P A drawing board incorporates a carriage 3, slidable along the upper edge of the board, a rail 5 mounted on the carriage to support movable straight edge assembly 7 and a double-parallelogram locating apparatus which lies under the board and keeps the carriage and rail oriented in all positions of the carriage. Preferably the carriage is supported by a single roller, and the upper edge of the board along which it slides is curved to counteract any tendency of the carriage to move to alignment with the support of the double-parallelogram. The doubleparallelogram may be supported at the centre line of the board, or towards one edge. Several alternative forms of double-parallelogram apparatus are described.
Patent GB-340397-A (GB)
Title: Improvements in bed-settees and the like
IPC: A47C17/20
Filed: 1929-12-09
Abstract: 340,397. Bed-settees. CAMERON, G. J. M., Kingsway Chair and Upholstery Works, Fairmuir Street, Dundee. Dec. 9, 1929, No. 37669. [Class 52 (ii).] A bed-settee comprises a fixed frame 3, a foldable bed frame 5 .. 8 pivoted, at 17, to the fixed frame, a seat member 9 linked to the bed frame and a front border piece 1, hinged to the seat member at 10 and carried by brackets 2, pivoted at 21 to the fixed frame and having sliding connections 4, 13 with the foldable bed frame. The back 14, pivoted at 15, may be connected to the members 5 by links 16, so that it recedes and assumes a rearwardly inclined position when the bed is opened.
Patent GB-929439-A (GB)
Title: Improvements relating to article feeding machines
Inventor: BIBBY HARRY
IPC: B65B61/12
Filed: 1960-11-04
Abstract: 929,439. Packaging. PLATT BROS. & CO. Ltd., and AUTOMATIC STRAPPING MACHINES Ltd. Jan. 5, 1962 [Nov. 4, 1960], No. 38001/60. Class 94(1). An article feeding machine comprises a continuously-driven belt conveyer 13, on which wrapping material 16 is fed from a supply roll 17 by the drive rollers 14, 15 and a roller conveyer 12 which moves the package 11 on to the material 16 ready for wrapping. A switch SW1 operated by the package 11 energizes the clutch 33 to drive the roller 14 via the chain 34 until the switch SW3 actuated by the cam 52 on the roller de-energizes the clutch to stop the drive and brake the roller 14. A serrated knife 51 on the roller 14 perforates the wrapping material so that when the roller 14 is braked the conveyer roller 31 and pinch roller 18 tension the wrapping to separate the web at the perforations. The roller conveyer 12 is driven via an electromagnetic clutch mounted on the shaft 44 rotated by chain 49 and sprocket 50 on the roller 31 shaft. This magnetic clutch is de-energized by the switch SW2 operated by the package to stop the roller conveyer until the package on the belt conveyer 13 is wrapped when a switch on the wrapping machine again starts the roller conveyer 12.
Patent GB-887041-A (GB)
Title: Leg-rest for chairs
IPC: A47C7/50
Filed: 1960-11-04
Abstract: 887,041. Chair leg rests. TREFILERIES LEON BEKAERT. Nov. 4, 1960 [July 13, 1960], No. 38034/60. Class 52(2) An arm chair with a back 2 and seat 3 movable into a reclining position has a movable leg rest consisting of a board 4 supported by an elongated member 5 connected to a member 6 concealed beneath seat 3 but slidable by means of shoes 9 engaged in grooves 10 in a frame 13 provided at the lower part of seat 3 and a gap is thus provided, in the position of use, between the board 4 and the seat 3 at one side. Alternatively member 5 may engage board 4 centrally leaving a gap either side.