baber/WOPTO huggingface dataset:
Patent GB-1036293-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices
Inventor: SANDBANK CARL PETER
IPC: H01L21/76
Filed: 1964-07-03
Abstract: 1,036,293. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. July 2, 1965 [July 3, 1964], No. 27563/64. Heading H1K. A semi-conductor device is made from a body including two or more superimposed uniform layers, of which at least one is of semi-conductive material, by a method which includes the step of removing material over one or more areas of a surface of the body, to at least the total depth of the outermost layer, by the erosive action of a repetitive electrical spark discharge between the body and an electrode near the relevant surface, to form one or more isolated regions in the material of at least the outermost layer. The Speecification describes in particular the manufacture of an integrated circuit including a transistor, Figs. 1 and 2 (not shown), and of a field-effect transistor, Figs. 3 and 4 (not shown).
Patent GB-225687-A (GB)
Title: An improved process for the dispersal of mineral raw materials by chemical action
IPC: C09C1/24
Filed: 1923-11-05
Abstract: Mineral raw materials, which contain at least 3 per cent of combined carbonic acid in addition to considerable proportions of other constituents, are disintegrated by treatment with a dilute solution of a mineral acid or acid salt in such proportion that the carbonates only are decomposed and are converted into bicarbonates.  Specified raw materials are oxides and hydroxides, particularly of iron and aluminium, silicates and hydrosilicates, phosphates, fluorides and earth colours.  In the treatment of minerals containing a higher percentage of calcium than of magnesium carbonate, it is preferred to employ sulphuric acid or acid sulphate, or a normal sulphate in conjunction with another acid or acid salt, so that the lime is converted into calcium sulphate, which absorbs the greater part of the water and yields a dry product or a paste, which may be employed as such.  The process may be preceded by a grinding operation.  In an example ochre, containing 3 per cent of carbonic acid in the form of calcium carbonate, is treated in a mixing apparatus with sulphuric acid.  The powdered product may be graded by washing.
Patent GB-1462419-A (GB)
Title: Self-locking pipe coupling
IPC: F16L37/00
Filed: 1974-06-24
Abstract: 1462419 Pipe couplings J VANDERHOVEN 24 June 1974 [27 June 1973] 27927/74 Heading F2G A self-locking pipe coupling 1 comprises ferrules 2, 3 into each of which a pipe end is inserted, each ferrule having an abutment 5; a cylindrical part 14 with an internal diameter only slightly greater than the external diameter of the pipe 4 inserted therein and an internal annular recess 6 tapering towards the open end 8 of ferrule 3, in which are located toroidal seal 9 and spring 10, the spring being nearest to open end 8. This arrangement allows pipe end 4 to be inserted easily into end 8, spring 10 and seal 9 and to carry seal 9 and spring 10 towards rear end 7 of recess 6. The penetration of pipe 4 is limited by abutment 5 and axial movement away from abutment 5 causes seal 9 and spring 10 to move down the tapering wall of recess 6 towards open end 8 and spring 10 to lock around pipe 4 and against the recess wall retaining pipe 4 in ferrule 3. The spring may be a closed coil having an internal diameter less than the external diameter of the pipe and may have a reinforcing wire within its turns, the turns all being of the same diameter and wound close together but not touching one another. Pipe 4 may be released from the coupling by simultaneously pulling and rotating it in one direction within ferrule 3 which laterally crushes the turns of spring 10 releasing its grip on the pipe. In alternative forms the coupling may have more than two ferrules of identical or differing cross-section and each ferrule may have more than one seal.
Patent GB-445106-A (GB)
Title: Apparatus for influencing a beam of light by electrical means
IPC: H04N5/74
Filed: 1934-10-01
Abstract: 445,106. Electro-optical light-valves. PULVERMACHER, K. PULVARI-, 2, Parisiutca, Budapest. Oct. 1, 1934, No. 28097. Convention date, April 28. Addition to 442,381. [Classes 39 (i) and 40 (iii)] Relates to an arrangement for influencing a beam of polarized light by electrical means as claimed in the parent Specification, in which, provided in the path of the light rays is a medium which rotates the plane of polarization of the light passing through it under the influence of an electric field and which is irradiated by an electron beam in order to apply a modulating voltage thereto. According to the invention, a body of insulating material and /or (1) a grating consisting of linear conductors electrically insulated from one another individually or in groups or (2) a slot-shaped screen is or are provided between the source of the electron beam and the electro-optically active medium. This medium may consist of one or more crystals, a liquid, or a screen or screens each built up from a plurality of crystal elements or amorphous particles. Fig. 1 shows an arrangement similar to that described with reference to Fig. 1 of the parent Specification, but in which the crystal 6, e.g. of zinc sulphide, is disposed on the outside wall of the tube 5 or at a slight separation therefrom. Anarrangement is also described (Fig. 2, not shown) employing an electro-optically active screen, which is similar to that described with reference to Fig. 2 of the parent Specification, but in which the screen lies directly against the outer obliquely flattened wall of the tube. Fig. 3 shows a further arrangement which may be used for wireless picture transmission in which a grating 49 formed from electrical conductors is provided at the inner wall 47 of the tube 5, the individual lines of this grating being insulated from one another individually or in groups. The optically active medium 6 is shown as comprising a plurality of crystals fitted together. When it is desired to transmit a plurality of lines simultaneously two or more gratings may be provided one behind the other, the gratings being encountered individually by different electron beams and a crystal or screen being associated with each line. The Specification as open to inspection under Sect. 91 comprises also a construction in which a glass &c. vessel containing a liquid such as nitrobenzol is arranged inside the tube, a grating similar to the grating 49, Fig. 3, being arranged on the side of the vessel which faces the cathode. This subject-matter does not appear in the Specification as accepted.
Patent GB-705446-A (GB)
Title: Improvements in writing instruments
Inventor: ENRIQUE CARLOS
IPC: B43K27/12
Filed: 1951-11-30
Abstract: 705,446. Multiple pen and pencil holders. BIROME SOC. ANON. COMERCIAL E INDUSTRIAL. Nov. 30, 1951, No. 28115/51. Class 146(3) A writing instrument of the kind comprising a tubular holder a containing two or more retractable writing elements which may be pencils, or, as shown, reservoir pens 7, is characterized in that the elements are mounted in parallel relationship within a sliding member b displaceable in unison from a retractable position to a position in which the writing tips can be used, the holder having for this purpose an opening 8 at its writing end which is large enough to allow simultaneous passage therethrough of all the tips. As shown, the sliding member b is operative, to project the pens 7, by a knob 1 against the action of a spring 3, the sliding member b being retained in projected position by a stud 4 on the member 6 engaging a slot 5 in the holder a, the stud being releasable by a projection 6 on a pocket clip.
Patent GB-1467718-A (GB)
Title: Piezoelectric resonators
IPC: H03H9/19
Filed: 1974-06-25
Abstract: 1467718 Piezoelectric resonators GENERAL ELECTRIC CO Ltd 23 May 1975 [25 June 1974] 28133/74 Heading H1E [Also in Division H3] The mass-loading, as determined by the mass and dimensions of the electrodes, of a thicknessshear piezoelectric resonator, is sufficient to increase the Q of the resonator at an odd harmonic overtone to exceed the Q at the fundamental frequency, such that the resonator may be used as the sole frequency-determining element in an oscillator operating at said overtone. The required ratio of Q values at fundamental and overtone for operation at the overtone, may be found by consideration of "performance index" (defined in the specification), a parameter proportional to Q n /n<SP>3</SP> where n is the order of the overtone. Thus, it is required that Q n >n<SP>3</SP>Q 1 . Since Q n  depends upon the equivalent series resistance R n , and is independent of L n  for different n, the requirement may also be expressed as R n >R 1 /n<SP>2</SP>. The mass-loading and electrode dimensions of the crystal plate determine, for the fundamental and different overtones, the value of "plateback", a parameter upon which depends the degree of energy trapping provided by the electrodes. The Q of the plate increases with increasing values of plateback. It is found that for certain values of the ratio of electrode length to plate thickness (1/t) the plateback is greater at the third and fifth overtones than at the fundamental. Moreover, the ratio of Q n  to Q 1  and of R n  to R 1  is such that the two criteria quoted above are satisfied. The specification gives Q values for two different values of mass loading and a value 1/t = 6 for fundamental and for 3rd and 5th harmonic overtones. A practical example of a plate for operation at the 3rd overtone as the frequencydetermining element in a transistor Colpitts oscillator is also given. The crystal plate may be loaded at its edges to further decrease Q at the fundamental. An AT-cut quartz crystal plate is used.
Patent GB-281847-A (GB)
Title: Improvements in castors
IPC: B60B33/00
Filed: 1926-11-10
Abstract: 281,847. Shipway, S. P. Nov. 10, 1926. Castors. - A castor is secured within a tubular leg or socket by an expanding sleeve with a cone 16 into which the castor spindle. screws, the sleeve being held against rotation bv means accessible externally of the socket. The lower part of the spindle 2 has fixed and adjustable ball races 6, 7 on which a tubular slesve 5, forming part of the castor yoke, is mounted. As shown applied to a tubular leg 1, the sleeve 14 is notched at its lower end to engage tongues 18 on a cap 13. In a, modification the torgues also engage notches in the tube 1. Flats 12 for the fixing spanner are formed on the spindle 2 and the upper web 20<a> thus produced can be deformed to lock the spindle against rotation after adjustment.
Patent GB-803282-A (GB)
Title: Improvements in or relating to rate of climb indicators
Inventor: ANASTASIA HARRY GEORGE
IPC: G01P3/62
Filed: 1955-10-04
Abstract: 803,282. Electric control systems. BENDIX AVIATION CORPORATION. Sept. 26, 1956 [Oct. 4, 1955], No. 28291/55. Class 40 (1). A device for indicating rate-of-change of altitude comprises means 2 for sensing a change of altitude, an inductive signal generator including an armature 6 moved by the sensing means 2 and a movable winding 12 which develops an output signal on relative movement between said armature 6 and said winding, a variable-speed electric motor 18 responsive to said signal and mechanically coupled to the winding to move the latter to a new equilibrium position with respect to the armature 6, and an indicator 26 displaced by said motor 18 to indicate the rate-of-change of altitude. Windings 10 are supplied with alternating current. When the E-shaped core is in neutral position with the armature 6 the currents induced in oppositely wound coils 12 are equal and antiphase so that the resultant output applied to amplifier 14 is zero. When the armature 6 is moved the windings 12 produce an alternating signal corresponding in phase to the sense of movement of the armature. This signal is amplified and applied to the control winding 16 of a two-phase induction motor 18 to drive it in one or other direction in a sense to drive the E-shaped core to a new neutral position. The motor 18 also drives an indicator 26 through a magnetic coupling 22, 24 of the drag-cup or eddy current type, whereby the rate of change of altitude in a positive or negative sense is indicated.
Patent GB-191853-A (GB)
Title: Improvements in or relating to spark arresters
IPC: F23J15/02
Filed: 1921-10-25
Abstract: 191,853. Irving, W. Oct. 25, 1921. Sand and the like, distributing on wheel tracks.- A spark arrester for locomotive-chimneys comprises an inverted conical base b, of less diameter than the stack, suspended by straps c from an annular member a of greater diameter than the base. The member a rests on top of the chimney and the base is held in position by a rod d connected to a strap f in the smokebox. Sparks are conveyed to the rail by an opening g and pipe h.
Patent GB-447871-A (GB)
Title: Improvements in machine for making strands for flattened strand rope
IPC: D07B7/02
Filed: 1935-10-14
Abstract: 447,871. Rolling. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(American Cable Co., Inc. ; 75, East 45th Street, New York, U.S.A.) Oct. 14, 1935, No. 28327. [Class 83 (iv)] [See also Group XXV] The strands of a wire rope are distorted so as to fit snugly against the adjacent strands in the rope while they are helically preformed by passing the assembled wires, closed by a die 34, between pairs of rolls 58 .. 63 mounted in a rotating frame 22. The apertures between the rolls are of wedge shape, and the intermediate pair of rolls 60, 61 are offset with respect to the other two pairs. The outer pairs of rolls are adjustable axially of the rope, and the central pair can be adjusted at right angles to the axis of the rope.
Patent GB-868304-A (GB)
Title: Improvements in or relating to processes for the polymerisation of ethylene
IPC: C08F255/02
Filed: 1957-09-09
Abstract: Ethylene is polymerized on to a support which is previously submitted to an ionizing irradiation such as gamma rays or high energy electrons, the support consisting of at least one paraffinic compound and the polymerization process being carried out at 0 DEG  to 300 DEG C. and at a pressure of from 40 to 600 kg. per sq. cm.  "Paraffinic compound" is defined and includes higher aliphatic hydrocarbons, polypropylene, polyisobutylene, mixtures thereof with polyethylene, and distillation residues from Fischer Tropsch processes, but excludes the use of polyethylene alone. The irradiated paraffinic compound may be in solution or suspension in a liquid medium during the polymerization reaction.
Patent GB-818232-A (GB)
Title: Improvements in or relating to fission processes
IPC: G21C1/00
Filed: 1955-10-05
Abstract: 818,232. Nuclear reactors. TOMMASI, G. B. Oct. 5, 1955 [Oct. 16, 1954; Aug. 27, 1955], No. 28393/55. Class 39(4). Fission of Sm<SP>144</SP> anc isotopes in general witl nuclei having a configuration analogous to a specified crystalline forn is obtained by subjecting the nuclie to neutror bombardment. In this way a nuclear reactor employing U<SP>235</SP> may be made to yield additional energy, or energy may be obtained from the fission of these imtermediate elements with neutrons produced by cosmic rays. Sm<SP>144</SP> is stated to be fissionable by neutrons of 3/5 of the energy required for fission of U<SP>235</SP> and to yield half the energy per fission. Sm<SP>144</SP> from U<SP>235</SP> fission products may be employed. In one apparatus described, neutrons from U<SP>235</SP> at 11 produce fissions in Sm<SP>144</SP> at 13, neutrons from which may pass at 11 or to a further quantity of Sm<SP>144</SP> at 15, from which in turn neutrons may pass to 13. 24, 25 represent the fission products, from which useful energy is extracted at 32 as thermal, mechanical, electrical or radiant energy. The remaining devices indicated are control means, reflectors, moderator and charging devices.
Patent GB-387044-A (GB)
Title: Improvements relating to continuous filters
IPC: B01D33/067
Filed: 1931-10-13
Abstract: 387,044. Filters. OLIVER UNITED FILTERS, Inc., Federal Reserve Bank Building, San Francisco, U.S.A. Oct. 13, 1931, No. 28398. Convention date, Oct. 13, 1930. [Class 46.] The sections of a rotary drum, rotary disc, or other continuous filter are separated from one another by distensible division strips. The invention is stated to be specially useful when such filters are used for making paper or insulating board. The Figures show a rotary drum filter with filter cloth 6, Fig. 1, held away from a wooden shell 1 by a screen 5 and a grating or drainage member 4. The drainage space is divided into cells by perforated channel-shaped members 7. Secured to the base of each member 7 is a rubber tube 8 which serves when inflated to stop communication between the adjacent cells. The tubes 8 are connected by pipes 9, Fig. 2, to a distributing valve 12 to which the cells themselves are connected by conduits 16. For the greater part of each revolution each cell and tube is in communication with a vacuum chamber 19, Fig. 3, of the distributing valve, the tubes being deflated and adjacent cells in free communication. The tubes between cells passing the washing and drying positions are however in communication with a source of pressure through a slot 22 in a bridgepiece 21 in the valve and a conduit 23. These tubes are therefore inflated and the adjacent cells sealed from one another. Fig. 5 shows a modification in which the cells have wooden grills or drainage members 31 and distensible division strips 8 are secured in the spaces formed by undercut faces of adjacent members.
Patent GB-370837-A (GB)
Title: Improvements in motor or other vehicle bodywork
IPC: B62D29/02
Filed: 1931-10-13
Abstract: 370,837. Doors for passenger vehicles; striking-plates and staples for latches DASTE, M. J., 12, Rue Pierre Lhomme, Courbevoie, Seine, France. Oct. 13, 1931, No. 28430. Convention date, June 12. [Class 103 (ii).] Relates to mountings for the saloon doors of motor vehicles, aircraft or the like of the kind in which each door is adapted to be locked by means of two latches or bolts engaging respectively either directly with the longitudinal member c of the roof and floor edge d or with co-operating elements carried by these parts. With the object of preventing rattling and transmission of stresses via the door from the floor to the roof of the vehicle &c. each door is provided with upper and lower locks e<1>, e<2>, the bolts m<2>, Fig. 7, of which are designed to engage with apertured conical studs g<1>, g<2>, e.g. as described in Specification 343,343, [Group XX], carried in silent blocks h<1>, h<2> mounted on the members c, d. In the construction shown the invention is applied to the two oppositely opening doors b, b<0> of a " pillarless " saloon body of a motor-car, and the two bolts m<2> are simultaneously operated through the medium of vertical bars l, cables or chains by turning a handle k. The silent blocks are preferably disposed with the axis of the block h<1> vertical and the axis of the block h<2> horizontal, and, if desired, the studs g<1>, g<2> may be replaced by flexibly mounted 'staples.
Patent GB-1205910-A (GB)
Title: N-acyl-1,2-dicarbonylphenylhydrazones
Inventor: BUECHEL KARL HEINZ
IPC: A01N37/44
Filed: 1969-06-05
Abstract: 1,205,910. N - acyl - dicarbonylphenylhydrazones. FARBENFABRIKEN BAYER A.G. 5 June, 1969 [5 July, 1968], No. 28555/69. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula wherein X is a cyano group, Y is an alkyl, alkoxy group or NRR<SP>1</SP> where R and R<SP>1</SP> are hydrogen atoms or alkyl or aryl radicals, m is an integer from 1 to 5 and Z is trifluoromethyl or chlorine and when m is from 2 to 5 may be the same or different and A is an alkyl, alkenyl, aryl, haloalkyl or haloaryl radical. They are prepared by reacting the appropriate 1,2-dicarbonylphenylhydrazone or alkali metal salt thereof with an acid chloride of formula A.CO.Cl in the presence of an acid binder if necessary. The potassium salt of cyanocarbomethoxycarbonyl - 3,5 - bistrifluoromethylphenylhydrazone is prepared from the hydrazone and ethanolic potassium hydroxide.
Patent GB-864138-A (GB)
Title: An improved agricultural appliance
IPC: A01F25/10
Filed: 1958-09-10
Abstract: 864138 Stock covers H C TURNER 10 Sept 1959 [10 Sept 1958] 28983/58 Index E1A 758 A cover for a hay stook comprises a bag b of synthetic resin material such as polyethylene, attached at its mouth to a resilient ring a, and provided with ventilation holes d covered by flaps e to prevent rain from passing therethrough.
Patent GB-1112767-A (GB)
Title: A method for the production of a concentrate for use in the manufacture of foodstuffs, beverages and similar substances
IPC: A23L27/30
Filed: 1965-07-08
Abstract: Cereal milk, which may be obtained by forming milk-ripe, i.e the stage after flowering, cereal into a pulp or paste and removing solid constituents, with or without chlorophyll, to leave a milky fluid, and its extracts and derivatives, is employed as a constituent of edible materials such as foodstuffs, beverages, and medicines.  The milk may be concentrated or dried, or fermented with yeast or lactic acid bacteria, or pasturized. Preservatives such as alcohol may be added.
Patent GB-1386918-A (GB)
Title: Process for the preparation of an additive for maize silage on the basis of prilled urea
IPC: A23K50/15
Filed: 1973-06-19
Abstract: 1386918 Silage additive comprising urea and mineral materials UNIE VAN KUNSTMESTFABRIEKEN B V 19 June 1973 [23 June 1972] 29074/73 Heading A2B A prilled additive for maize silage contains urea and mineral constituents in a weight ratio of 2:3 to 3:2, the said mineral constituents containing 54 to 66% by wt of dicalcium phosphate; 18-22% by wt of sodium chloride, the balance comprising sulphates or carbonates of Na and Mg together with sulphates, oxides or carbonates of Zn, Fe, Mn, Cu, and/or Co, and said additive is formed by homogenously mixing the mineral constituents with the desired amount of molten urea and prilling the resultant suspension in a prilling apparatus using spraying and cooling steps wherein the said steps are carried out sufficiently rapidly so that not more than 1/3 of the sodium chloride dissolves in the urea. For example a time of not more than 7 secs is employed. The sodium chloride may be added last to the molten urea, and the mineral salts used may be employed in their anhydrous form.
Patent GB-1244575-A (GB)
Title: Load supporting platform clamping device
IPC: B66F9/18
Filed: 1969-06-09
Abstract: 1,244,575. Masted lift trucks. HYSTER CO. 9 June, 1969 [13 June, 1968], No. 29086/69. Heading B8H. An apparatus for rigidly securing a pallet 24 on the forks 22a, 22b of a lift truck 10 after the pallet has been raised thereby comprises a pair of clamping members 58 positioned to centre and grip the pallet when the forks are inserted therebeneath and to thereafter draw the pallet into a position abutting a bearing surface on the truck 10. The clamping members 58 are each pivotally mounted to opposite ends of a carriage plate movable longitudinally of the forks and are also pivotally connected to each other centrally of the carriage plate, which central pivot is connected by a cable to an operating lever 86 on the truck. The carriage plate is spring-biased forwardly of the forks with a force greater than a spring force which biases the central pivot of the members 58 forwardly of the carriage plate, whereby when the lever 86 is operated to tension the operating cable, the members 58 pivotly move together to grip the pallet at 28b, after which the carriage plate moves to draw the pallet further on to the forks. A bearing plate at the front of a carriage 18 for the forks is vertically angled such that as the pallet is drawn into engagement therewith, it is forced downwardly on to the forks for vertical stability.