baber/WOPTO huggingface dataset:
Patent GB-1245763-A (GB)
Title: Methods of mounting semiconductor bodies
Inventor: TYLER AUSTIN LAMONT
IPC: H01L21/302
Filed: 1968-09-26
Abstract: 1,245,763. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 26 Sept., 1968 [29 Sept., 1967], No. 45681/68. Heading H1K. A semi-conductor body is mounted on a member by applying a hardenable mounting material to the body, flattening the material to produce a substantially uniform first layer, hardening the layer, applying further mounting material to the first layer, pressing the member on to the further material with such a force and for such a time that a second layer of predetermined thickness is formed, and then hardening the second layer. As shown, Fig. 1, a quantity 14 of mounting material is applied to a semi-conductor wafer 11 having conductive interconnections 12 and thicker beam leads 13 and is flattened by means of a sapphire member 16 and a P.T.F.E. disc 15 to form a layer of material equal in thickness to the beam leads, and this layer is cured. The P.T.F.E. disc 15 does not adhere to the layer and is readily removed. A further quantity of mounting material is applied to the surface and a sapphire mounting member (16) having a surface coating (17) of silicon dioxide is pressed down on to the mounting material which is compressed to form a film 0À1 mil thick. The pressure used and the time for which it is applied are functions of the viscosity of the mounting material and of the diameter of the semiconductor body. The mounting material is then cured to adhere the mounting member (16) to the body (11). The lower surface of the wafer may then be subjected to various treatments for example lapping, polishing and etching. The process may be used for mounting a semiconductor body during the production of integrated circuits with dielectric isolation. The mounting material may comprise a mixture of Butadiene-Styrene resin and vinyl toluene together with suitable hardeners. The semiconductor body may be released from the mounting member by treatment with oxygen containing ozone which reacts with the hardened mounting material to form a gaseous product which is readily removed.
Patent GB-1160237-A (GB)
Title: Smooth Surfaced Sheet Materials and Method of Manufacturing the Same
IPC: D06N3/00
Filed: 1966-10-13
Abstract: 1,160,237. Coated products. KURASHIKI RAYON K.K. 13 Oct., 1966 [15 Oct., 1965], No. 45783/66. Heading B2E. A sheet material comprises a substratum of an unwoven fibre mat impregnated with a polyurethane elastomer, a layer comprising particles suspended in a polyurethane elastomer, the particles being such a size that they cannot pass through the substratum and a coating comprising a polyurethane elastomer on the layer. The unwoven fibre mat may be made of a polyamide resin. The particles may be of cellulose, polyvinyl alcohol, starch, polystyrene, polymethacrylic acid, polyurea, a melamine resin, a phenol resin, glass or an inert inorganic material. The sheet material may be prepared by forcing into an unwoven fibre mat on one side thereof a moist solution comprising a polyurethane elastomer, a solvent therefor and particles of such a size they cannot pass through the mat thereby impregnating the mat with a solution of the polyurethane elastomer and applying to the mat a layer comprising a suspension of particles in the polyurethane, applying a solution of a polyurethane elastomer to the layer of polyurethane and drying or solidifying the polyurethane elastomers.
Patent GB-1526258-A (GB)
Title: Disc brake
IPC: F16D55/227
Filed: 1975-11-06
Abstract: 1526258 Disc brakes; brake pads AKEBONO BRAKE INDUSTRY CO Ltd 6 Nov 1975 46038/75 Heading F2E The caliper 6 of a disc brake is slidably guided on pins 5, 5<SP>1</SP> which are fitted to a fixed support 1a, the support 1a also supporting a front friction pad 10a and a rear friction pad 10; in the brake of the invention, as opposed to that of the prior art (Figs. 1-3, not shown) the support 1 is formed without protrusions (14) at the front for guidance of pad 10a, whereby the disc 9 may be inserted into the brake from the front. The back plate 12 of the rear friction pad 10 has protrusions (16) for co-operation with guide grooves 15 in the support 1a while the back plate 12a of the front pad 10a has straight edge faces 17 for sliding contact with faces 19 on support 1a, and is also formed with claws 18 which engage pins 5, 5<SP>1</SP> to support the weight of the pad 10a. The caliper 6, which may be rotated on pin 5<SP>1</SP> after removal of pin 5 during assembly of the disc brake, incorporates two pistons 11 for actuation of pad 10, pad 10a being actuated by reaction through the caliper 6. In the embodiment of Fig. 9, an elastic (e.g. rubber) cover 22 is fitted between pin 5<SP>1</SP>a and a supporting hole 21 in support la to absorb deformation of support la duringbrake actuation with the disc rotating in direction A. Metal or plastic sleeves 23 are press fitted into hole 21 to hold cover 22. A metal sleeve 25 inserted in a hole 24 in support la surrounds the pin 5a. Locking nuts are threadedly fitted to pins 5a, 5<SP>1</SP>a. The arrangement is said to prevent vehicle vibration being transmitted to caliper 6.
Patent GB-1528367-A (GB)
Title: Process for the manufacture of granular oxymethylene polymers
IPC: C08G2/00
Filed: 1975-11-07
Abstract: 1528367 Oxyalkylene polymers HOECHST AG 7 Nov 1975 [7 Nov 1974 4 Feb 1975 7 March 1975] 46248/75 Heading C3L A process for the preparation of a granular oxyalkylene polymer comprising oxymethylene units and optionally up to 20% of other oxyalkylene units having 2 to 8 adjacent carbon atoms, comprises cooling a solution or dispersion of the oxyalkylene polymer which is initially at a temperature above its sintering temperature, in a methanol/water mixture, (i) in a first stage to a temperature (T 1 ) 0 to 10‹ C. above the sintering temperature (T 5 ) of the polymer, and (ii) in a second stage to a temperature (T 2 ) 1 to 10‹ C. below T 5 , separating the precipitated polymer and drying it. The solution or dispersion of the oxyalkylene polymer may be cooled in both stages by mixing with a turbulent flowing liquid or in the first stage by mixing with a turbulent flowing liquid and in a second stage by means of a cooling device. The specific Examples describe the preparation of copolymers from trioxane (98%) and ethylene oxide (2%).
Patent GB-1484057-A (GB)
Title: Adjuvant for a self-smoothing mortar
IPC: C04B20/10
Filed: 1974-10-28
Abstract: 1484057 Mortars RHONE-POULENC SA 28 Oct 1974 [29 Oct 1973] 46437/74 Heading C1H A self-smoothing mortar comprises cement (e.g. Portland cement), sand, water, a specified adjuvant and, optionally, an accelerator (e.g. based on calcium formate) for shortening the setting time of the mortar. The adjuvant comprises 30-80% by weight of a filler with a specific surface area of at least 10 m.<SP>2</SP>/g., 10-40% by weight of an emulsifier or emulsifying system, deposited on the filler, and at least 5% by weight of a hydrophilic material having, by its chemical nature, the capacity to retain water. The filler may be kaolin, alumina, calcium carbonate, calcium magnesium carbonate, barium sulphate or calcium sulphate and the emulsifier may consist of 0-40% of a non-ionic surface-active agent (e.g. a derivative of an alkyl-phenol, fatty acid of fatty alochol, especially an ethylene oxide derivative of octyl- or nonyl-phenol) and 60-100% of an anionic surface-active agent (e.g. chosen from sulphated derivatives of amino-alcohol amides, amide derivatives of amino-sulphonic acids of amino-acids, sulphonated derivatives of mono- or di-esters, and alkylbenzene-sulphonates). The water-retaining agents mentioned are alginates, cellulose derivatives (e.g. hydroxyalkyl- or carboxymethyl-cellulose), polyacrylic acid derivatives (e.g. sodium polyacrylate) and polyvinyl alcohols (which may be partially hydrolysed). The adjuvant may be made up in dry powder form, but, according to a modification of the invention, the self-smoothing mortar may be prepared directly from its ingredients, in which case it is possible to incorporate the emulsifier or emulsifier system into the mortar in the form of a liquid which is introduced into the mixing water for the mortar and not as a deposit on the filler.
Patent GB-1372418-A (GB)
Title: Processing molten metals
IPC: C04B35/486
Filed: 1971-10-06
Abstract: 1372418 Refractories WESTERN ELECTRIC CO Inc 6 Oct 1971 [7 Oct 1970 3 June 1971] 46445/71 Heading C1J [Also in Division F4] Molten metals are processed in apparatus comprising a nozzle, wherein the part of the nozzle contacting the melt at 700-1300‹ C. comprises ZrO2 containing 2À8-3À15% MgO and contains means for heating the nozzle before contact with the melt.
Patent GB-1243710-A (GB)
Title: Hopper barge with hingeable bottom halves
IPC: B63B35/30
Filed: 1969-09-22
Abstract: 1,243,710. Hopper barges. SCHOTTELWERFT, JOSEF BECKER K.G. 22 Sept., 1969 [24 Sept., 1968], No. 46496/69. Heading B7A. In a hopper barge with hinged bottom halves 10, 11 and a drive unit platform 25 which is kept horizontal when the halves are open and closed, the platform is connected to the two halves by pivots 21, 22 and an extensible and contractable connection 27, 28 is provided between the pivots. As shown, the platform is in two parts 27, 28, each connected to a pivot and part 28 slides in part 27.
Patent GB-1171309-A (GB)
Title: Dispenser of Tissue from Rolls thereof
IPC: A47K10/32
Filed: 1967-10-13
Abstract: 1,171,309. Roll holders. TOWLSAVER Inc. 13 Oct., 1967 [3 Jan., 1967], No. 46805/67. Heading A4G. A roll dispenser having an upper spore roll 134, Fig. 2, automatically falling into dispensing position as in Fig. 3 when the lower roll 134 is used up, comprises a vertical trough housing 22, 50 with a lockable top lid 34, the trough sides having vertical grooves 58 with rearwardly and downwardly inclined end portions accommodating the ends 100, 102 and 104, 106, Fig. 8, of a roll holder formed of plastics, parallel mandrels 94, 96, connected at 98 and secured on a metal U-yoke 120, the mandrels each having a large portion 108 and a small portion 112. Over each small portion is a hinged sleeve 114 with finger 116 which moves against spring 128 from the solid to the phantom line position in Fig. 8. The core of each roll mounted over the mandrel and sleeve is circumferentially cut between the large mandrel portion and the sleeve and when the holder and rolls are accomodated in the trough and grooves a lower finger 116 depresses a spring 80 and rests on a stop 88 with the lower roll dispensible and the upper roll under the lid 34, a roll-holder projection 132 extending below a pendulum stop 72. When the lower roll is used, spring 80 acts a finger 116 and, due to the cut roll core, turns sleeve 114 and shifts finger 116 off stop 88 so that the roll holder falls further down slots 58, as in Fig. 3, and presents the top roll for dispensing, a top finger moving under pendulum stop 72. For reservicing the dispenser, the lid is opened so that a hinge finger 76 shifts pendulum stop 72 and the holder is withdrawn for replenishment of the rolls and the holder may be replaced using either end for first entering the trough. A slanting hook 90 locates the holder laterally.
Patent GB-1508149-A (GB)
Title: Food preparation and packaging
IPC: A21B7/00
Filed: 1975-11-13
Abstract: 1508149 Eliminating metal baking trays in cake manufacture ENTENMANNS INC 13 Nov 1975 [21 Nov 1974] 46926/75 Heading A2A  A tray made of folded paper (10) and having holes in its upper surface has paper linings (16) inserted, which are filled with batter (19), baked (20) and packaged (24). Icing may be added to the product after baking but before packing.
Patent GB-1370775-A (GB)
Title: Brake shoe reaction device for an internal shoe drum brake
IPC: F16D65/14
Filed: 1970-10-02
Abstract: 1370775 Drum brakes GIRLING Ltd 1 Oct 1971 [2 Oct 1970] 46946/70 Heading F2E A reaction assembly, for an internal shoe drum brake between two shoes, comprises a telescopic strut having prestressed resilient means capable of permitting some contraction of the strut only under the action of a thrust load over a predetermined value, the strut comprising a pair of telescopically arranged members screw threaded together for brake lining wear adjustment one member being urged into frictional engagement with means held against rotation with the member such that when the other member is rotated the one member is prevented from such rotation unless the force for rotation exceeds a predetermined value. The reaction assembly 4 comprises a sleeve 10 having fixed at one end a ring 21 providing an axial abutment for a stack of prestressed Belleville washers 20 which abut at the other end a ring 19 slidable on the sleeve. The ring 19 abuts a shoe support 18 and the sleeve 10 provides the other shoe support 12 through a wear adjuster mechanism, which comprises a spindle 11 threaded inside the sleeve and having a ratchet wheel 13 engaged by the end of a lever 14 pivoted in one brake shoe 2. Upon overtravel of the shoe 2, during brake actuation, the lever end slips over a ratchet tooth, and upon shoe return, the ratchet wheel 13 is rotated to adjust the strut length. The brake actuator 3 is a double-ended cylinder with two pistons and having a lock actuator to hold the shoes against the drum after removal of the hydraulic actuation, for parking. The ability of the reaction assembly 4 to contract under high load is to accommodate drum contraction after braking when the shoes are still applied for parking, the Belleville washers 20 allowing the ring 21 to move toward the ring 19.
Patent GB-1063714-A (GB)
Title: Agricultural chemical compositions
Inventor: HARTLEY GILBERT SPENCER
IPC: C09K23/00
Filed: 1962-12-13
Abstract: An agricultural chemical composition which forms a solid gel on standing comprises a solid agricultural chemical which is preferably insoluble or slightly soluble in water, the sodium salt of a long chain saturated aliphatic carboxylic acid of 12-24 carbon atoms, and water in amount comprising 50-200 times the weight of the sodium salt.  A greatly reduced tendency to evaporation and greater adhesion is obtained if the composition also contains a long chain saturated aliphatic carboxylic acid of 12-24 carbon atoms and a volatile base. Examples of agricultural chemicals are fungicides, e.g. cuprous oxide, cupric hydroxide, copper oxychloride, nickel hydroxide, tetramethylthiuram disulphide and 4,5,6,7-tetrachloroquinoxaline; insecticides, e.g. a culture of B. thuringiensis, DDT, aldrin, dieldrin and BHC, and herbicides e.g. N-parachlorophenyl-N\svN\sv-dimethylurea, simazine and atrazine; or mixtures of any of the above together or with other materials. Examples of long chain saturated aliphatic carboxylic acids are palmitic acid, stearic acid, arachidic acid and mixtures containing the same.  The sodium salt of the long chain acid may be added to the composition as such or may be formed in situ from the corresponding acid and the appropriate amount of a suitable sodium compound such as sodium hydroxide or sodium carbonate.  The volatile base may comprise ammonia or an amine which is volatile from aqueous solution.
Patent GB-1199695-A (GB)
Title: Hydroxyindan Compound and process for the manufacture thereof
Inventor: WOOD THOMAS FULLENWIDER
IPC: C07C45/00
Filed: 1968-10-04
Abstract: 1,199,695. Perfume. L. GIVAUDAN & CIE S.A. 4 Oct., 1968 [10 July, 1967; 1 July, 1968], No. 47209/68. Heading A5B. [Also in Divisions C2 and C5] 1, 1-Dimethyl-5, 7-diisopropyl-6-hydroxyindan may be used as a fixative in perfume compositions. An Example (no. 6) is given of a perfume composition containing it.
Patent GB-1389397-A (GB)
Title: Microstrip antenna
IPC: H01Q21/20
Filed: 1973-10-10
Abstract: 1389397 Aerials MINNESOTA MINING & MFG CO 10 Oct 1973 [11 Oct 1972] 47402/73 Heading H4A A microstrip aerial which is impedance matched to a transmission line comprises a thin conductive radiator element having a broad surface and two unequal dimensions along orthogonal ones of symmetry in said broad surface. The dimension along the E plane is substantially #/2#Á r # r , where # is the wavelength of the radiation signals sent from or received by the aerial, and Ár, #r are, respectively, the relative permeability and permittivity of a layer of dielectric material of uniform thickness separating the radiator element from a ground plane. A single electrical feed element, for connection to a transmission line, is coupled to a peripheral portion of the radiator element at a point which is spaced away from said axes. As described, each element 26, Fig. 5, of an array 24 of four elements is elliptical in shape, with its minor axis in the E-plane. However, an aerial may use only one element, if desired, and the element shape may be other than elliptical, for example, rectangular, or another orthogonally symmetrical configuration. A suitable value of eccentricity for the elliptical elements shown is 0À65. A ground plane underlies the elements, and is separated from them by a dielectric material layer, such as polytetrafluoroethylene. The aerial is made from double copper-clad printed circuit board stock by etching one layer to form the radiator elements and their feed system. In said feed system a trunk feed element 30 is tapered so as to change its impedance from 50 ohms at a transmission line terminal 32 to 25 ohms at a junction 34, where it divides to form two branch feed elements 36. Each feed element 36 is tapered so as to change its impedance from 50 ohms at the junction 34 to 35 ohms at a junction 38, where it divides to form two feed elements 28, 29, each of 70 ohms impedance. A feed point 42 on the periphery of each radiating element 26 is displaced from the minor and major axes thereof and is chosen to give an input impedance of 70 ohms. The feed points for the two upper elements are below their major axes, whilst those of the lower elements are above. In consequence, there is a 180 degree phase difference, and this is compensated by making the feed elements 29 longer by #/2 than the feed elements 28.
Patent GB-1271774-A (GB)
Title: Thrust bearings
Inventor: SATTERTHWAITE JAMES GLENN
IPC: F16C17/04
Filed: 1970-10-07
Abstract: 1,271,774. Bearings. J. G. SATTERTHWAITE, and J. B. MACY JNR. 7 Oct., 1970 [8 Oct., 1969], No. 47687/70. Heading F2A. A thrust bearing has one member 51 with a smooth radially extending bearing surface and another member with a bearing surface made up of a plurality of segments) 39 whose bearing surfaces when unstressed are flat and parallel to the first bearing surface. The smooth surface is made of a material having substantial adhesion with the lubricant for the bearing, the material of the bearing segments having substantially less adhesion with the lubricant. The bearing may be used in water, the smooth bearing surface being metal and the segments being of rubber. Between adjacent bearing segments recesses 48 are provided which facilitate the passage of water to the bearing surfaces. On relative rotation of the members a water film is generated between the bearing surfaces. The bearing is loaded by means which provide an axial force which is a direct function of the speed of rotation of the rotatable part. As illustrated, the invention is used for axially supporting a peripherally driven marine propeller, the propeller providing the axial loading. A ring of bearing segments is provided on each side of the propeller in order to carry axial load in either direction.
Patent GB-949029-A (GB)
Title: Improvements in or relating to vehicle transmission systems
IPC: F16H3/78
Filed: 1962-12-18
Abstract: 949,029. Vehicle driving gear. SCANIA-VABIS A.B. Dec. 18, 1962 [Dec. 19, 1961], No. 47794/62. Heading B7H. [Also in Division F2] A supplementary three element planetary gear between the main gear and the transmission of a road vehicle has a planet carrier connected to the transmission and the sun or ring gears connected through synchronized dog clutches to the planet carrier or to a stationary element. The ring gear 8 of the supplementary gear is partially engaged with a gear 5, and secured thereto by a split ring 9, rigid with the output shaft 3 of the vehicle gear. Planet gears 11 mesh with the ring gear and with a sun gear 26 and are mounted on a planet carrier 14 rigid with a shaft 18 connected to the vehicle transmission. The boss 27 of the sun gear 26 is splined at 28, 29, 30 to receive a sliding dog clutch sleeve 32 carrying cone clutch synchronizing means 31 for engagement with a planet carrier member 23 or with a stationary member 39. A clutch shift fork 35 is actuated by fluid pressure on two pistons 44, 45 having limited free travel on a rod 43 to provide low, neutral and direct drives on pressurization of chambers formed between the left-hand wall and piston 44, between the two pistons and between the piston 45 and the right-hand cylinder cover respectively. Teeth on the gear 5 also drive a gear 50 clutchable to a shaft 51 by a sliding dog clutch 54 to provide a power take-off operable either with the vehicle stationary, supplementary gear in neutral, or with the vehicle running.
Patent GB-1381172-A (GB)
Title: Telemetric receiver
IPC: H03M5/08
Filed: 1972-10-17
Abstract: 1381172 Telemetric receiver GENERAL SIGNAL CORP 17 Oct 1972 [16 Nov 1971] 47801/72 Heading G4H A telemetric receiver for pulse width modulated signals comprises means 17-21 for delivering pulses from a clock 22 to a counter 23 during a time interval corresponding to the width of each transmitted pulse, a latch pulse generator 24 effective at the end of each transmitted pulse to transfer the count in 23 to a register 25, means 26 for resetting 23 after its count has been transferred to 25, and means 27, 28 for establishing a variable control signal for a positioner circuit 29 for a pen recorder 31. The signal is sent over a line L to an isolating relay 17 in the receiver, contact 176 closing to apply a " 0 " signal to NOR gate 21; a power supply 16 supplies " 1 " and " 0 " levels at - 9 V and - 4 V respectively so that connection 18 is at - 9 V during reception of a pulse, and clockpulses pass through 21 to counter 23. Generators 24, 26 comprise differentiator and monostable circuits (Fig. 3, not shown) which sense the voltage change (- 9 V to - 4 V) at 18. Counter 23 and register 25 each contain three integrated circuits comprising D-type flip-flops, Fig. 5. The counter can be easily modified to accommodate signals based on a 4, 8, 15 or 60 second transmission cycle. Register 25 is connected to a D/A converter 27 comprising inverters 91-92 and binary-weighted resistors 93- 102 connected to a common point 103 at which is obtained a current proportional to the pulse width: this causes a voltage to be developed across a resistor 28 which is fed to the positioner circuit 29. Circuit 29 comprises amplifiers and a motor controlled by a feedback potentiometer 122, Fig. 6 (not shown), and includes means to permit full deflection of the recorder pen 31a regardless of the limits on the incoming signal in order to ensure maximum read-out resolution. In a signal loss detector 32, Fig. 7 (not shown), for signal transmission interruptions of more than 2¢ mins. (greater than the maximum transmission cycle), a capacitor (152) discharges to render a F.E.T. (154) non-conducting and open a relay (158). Power is thus cut off from recorder 31 which moves to its zero position. A retransmission circuit 33 (Fig. 7) may be used for transmitting the received signal to a further receiver.