baber/WOPTO huggingface dataset:
Patent GB-222999-A (GB)
Title: Improvements in the construction of wings and like members of aeroplane flying machines
IPC: B64C3/00
Filed: 1923-07-28
Abstract: 222,999. Short, H. O. July 28, 1923. Planes, construction of.- -An aeroplane wing of thin sheet metal is made as follows : A number of thin sheet metal plates or bulkheads 3, flanged at their upper and lower edges and corresponding in height to the thickness of the wing at the parts where they are located, are arranged vertically parallel to each other at a distance apart and extending from shoulder to tip of the wing, or from tip to tip. These bulkheads are supported in their vertical positions by vertical transverse intermediate partitions 4, which do not pass through the bulkheads; these partitions conform in height to the bulkheads and to the contour of the wing section, and have flanged ends riveted to the bulkheads. Thin sheet metal plating 2 is then riveted to the lower and upper flanges of the inner structure and share the stresses therewith. The plating may be riveted by means of tubular rivets, or by long wires passing through the wing structure from bottom to top. The internal surface of the plating and the partitions may be provided with stiffeners 7, 6 respectively. Auxiliary partitions 5 may be arranged in the foremost part of the wing.
Patent GB-1138946-A (GB)
Title: Process for the decomposition of formic acid
Inventor: HAYDEN PERCY
IPC: C01B32/50
Filed: 1965-05-07
Abstract: 1,138,946. Acetic acid. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 March, 1966 [7 May, 1965], No. 19403/65. Heading C2C. Mixtures of acetic and formic acid are heated to selectively decompose the formic acid by contacting in the liquid phase with molecular oxygen in the presence of a catalyst comprising a soluble compound of a platinum group metal and a redox system capable of preventing precipitation of the metal. The redox system may be organic or inorganic, e.g. with p-benzoquinone, duraquinone or 2-ethylanthraquinone, and with cupric and ferric salts respectively. A base, e.g. lithium acetate, may be added and the resulting formate ions treated.
Patent GB-151426-A (GB)
Title: Improvements in drums for sherardizing
IPC: C23C10/34
Filed: 1919-08-06
Abstract: 151,426. Coles, S. O. Cowper-. Aug. 6, 1919. No Patent granted (Sealing fee not paid). Rotary furnaces.-A sheradizing furnace is provided with a central longitudinal heating tube, and is mounted so that it can be intermittently or continuously rotated. In the form shown, the central tube i is heated by a burner k and the combustion products pass through an end chamber c and through tubes n in the annular space o to an end chamber b and outlet p. The drum, which is provided with heatinsulating material f, g, h, may be rotated on rollers q and a trunnion r by means of gearing t, handles b<1> for manual operation being also provided. A door d is provided, and the drum may be held with the door upwards by means of a pawl w. The drum may also be provided with an outer jacket through which the heating medium may be circulated.
Patent GB-919374-A (GB)
Title: Organo-boron-nitrogen compounds
IPC: C10L1/30
Filed: 1960-06-01
Abstract: The invention comprises (1) boron nitrogen compounds of the formula <FORM:0919374/IV (b)/1> wherein each R represents an alkyl, aryl cycloalkyl or alkaryl radical, n is 0, 1 or 2, Y represents an oxygen or sulphur atom or an -NH- radical, and Z represents an alkyl, arylamino, alkylboroamino or arylboroamino radical, such as (C3H7)2BNHCOCH3, (C3H7)2 BNHCONHC6H5, [(C3H7)2BNH]2CS or of the formula: <FORM:0919374/IV (b)/2> and (2) the preparation of boron nitrogen compounds by reacting a boron compound of the formula BR3 (in which each R is above) with a dicarboxylic acid imide, a dicarboxylic acid amide, an amide of the formula <FORM:0919374/IV (b)/3> wherein Y is an oxygen or sulphur atom and Z1 is an alkyl, aryl, cycloalkyl, aralkyl, amino, alkylamino, arylamino, chlorophenylamino, or aminophenylamino radical, a polymeric urea or a polymeric amide, at a temperature sufficiently high to cause the formation of a hydrocarbon of formula RH but low enough to avoid thermally decomposing the boro compounds present, and recovering the organoboron-nitrogen compound formed.  The reaction may take place in the presence or absence of inert solvents and advantageously at a temperature above 100 DEG C. Examples of suitable boron hydrocarbons and amides are given. Detailed examples describe the preparation of the specific compounds whose formulae are given above.
Patent GB-1464927-A (GB)
Title: Temperature compensated oscillatory circuits
IPC: H03B5/04
Filed: 1974-05-03
Abstract: 1464927 Oscillator circuits SIEMENS AG 3 May 1974 [10 May 1973] 19452/74 Heading H3T A temperature compensation circuit for an oscillator comprises a capacitance diode, D1 or D2, which serves to determine the resonant frequency and which is controlled by a voltage derived from a potential divider one arm of which includes a temperature dependent resistor 4 in series with an adjustable resistor 5. As described, to variable capacity diodes D1, D2 are connected in series back-to-back, and the control voltage is applied to their junction. The potential divider includes a second adjustable resistor 6 shunting the series connected elements 4, 5 to compensate for changes in amplitude of the voltage U applied to the potential divider.
Patent GB-194894-A (GB)
Abstract: 194,894. Calderwood, W., Webb, A. E., and Reihl, C. A. Feb. 13, 1922. Fats and fatty oils.-Oils are thickened without oxidation by heating and cooling a filled hermetically-sealed vessel a connected through a sinuous pipe d, forming an oil seal k to a vessel e which receives excess oil due to expansion under heat, and to a vessel f which supplies already thickened oil as the vessel a cools. The vessel a may be fitted with a jacket and with internal coils, primarily for cooling.
Patent GB-1515504-A (GB)
Title: Root crop harvesters
IPC: A01B69/04
Filed: 1975-08-04
Abstract: 1515504 Automatic steering for root crop harvesters J D DYSON and C R DYSON 4 Aug 1975 [3 May 1974] 19581/74 Heading A1F [Also in Division B7] A root crop harvester has one or more self-seeking units, a change in the lateral position of which relative to the harvester, generates a signal which is used to regulate the lateral position of the unit relative to the crop row being harvested, by steering the harvester or by moving the unit laterally of the harvester. One embodiment of the invention Fig. 1 (not shown), is as described in Specification 1515505 differing only in that the feelers of that harvester are here provided by digger shares. The embodiment shown in Fig. 2 incorporates in a modified form the automatic harvester steering system shown in Fig. 1. Additionally lateral deflections of the shares 107 are employed to operate a spool valve 111 which actuates a ram 112 to move the frame 114, from which the shares are suspended, laterally of the harvester along a transverse beam; thus the shares are centralised over the row crop being harvested. The automatic steering can be disengaged by a hand lever 122. In the embodiment of Fig. 5, lateral deflections of squeeze wheels 307 operate switches 454, 456, 458, 460 which energises a solenoid to open a spool valve 111 and operate a ram 112 which moves the frame 114 laterally of the harvester along a beam 113. Switches 420, 422, 424, 426 operated by a cam bar 410 produce a signal dependent on the lateral position of the wheels 307 and the frame 114 to the harvester; this signal is summation with like signals from other pairs of wheels, may be used to effect steering of the harvester, Fig. 6 (not shown) shows an automatic steering system wherein lateral deflections of free running squeeze wheels (200, 202) operate proximity switches which control a potentiometer circuit (ACEBDF).
Patent GB-791480-A (GB)
Title: Improvements relating to spinning frames
Inventor: MACKIE JOHN PRINGLE
IPC: D01H13/30
Filed: 1955-07-07
Abstract: 791,480. Wet spinning of yarns. MACKIE & SONS, Ltd., J. June 15, 1956 [July 7, 1955], No. 19684/55. Class 120(2) A cover 15 is fitted between the tops of the wharves 7 and the underside of the ring rail 1 in a ring spinning frame to prevent water and any accompanying oil from dripping on to the driving tapes 6 and to lead it away to a point or points where it will not soil the operator. The cover has a sloping portion 16 leading into a gutter portion.18 and an upturned lip 17 at the rear. There is also an upturned lip around each hole where a spindle passes through, these holes being of keyhole shape to permit the placing of the cover in position. The cover is arranged in separate lengths a space being left between adjacent lengths to allow liquid collected in the gutter portions to drain away. Specification 737,197 is referred to in the Provisional Specification.
Patent GB-932640-A (GB)
Title: An apparatus for cutting and breaking brittle plates
IPC: B28D1/22
Filed: 1962-05-22
Abstract: 932,640. Cutting tiles. G. G. C. GJUTERI A.B. May 22, 1962 [Sept. 14, 1961], No. 19700/62. Class 124. An apparatus for cutting and breaking brittle plates and tiles comprises a frame 5, 6, 7, a carriage 11 movable backwards and forwards on guides 8 by means of a pivoted hand lever 16, a cutting member 12 mounted on the carriage for scoring the plate 27 which is supported by a rib 6, two spaced clamping members 28, 281 provided above the rib and movable to and from the upper surface of the plate, and an actuating member 26 attached to the lever to depress the clamping members towards the plate to break it as soon as the member has passed the plate. The cutting member 12 for scoring the tiles is mounted in a spring-loaded plunger 35 adjustable inathreaded sleeve 32 screwed into the carriage 11. The clamping members are secured to levers 20 pivoted on a bracket 22, the levers being connected by a portion 23 in which an adjustable screw 29 is arranged to contact a plate 25 pivoted to the levers. The actuating member 26 is in the form of a cam and rotates with the lever 16 so that after the carriage has been moved across the tile, further rotation of the lever 16 causes the cam to act on the levers 20 via the plate 25 and screw 26, and thereby depress the clamping members to break the plate.
Patent GB-596719-A (GB)
Title: Improvements in or relating to piezo-electric crystal holders
IPC: H03H9/05
Filed: 1945-07-31
Abstract: 596,719. Piezo-electric crystal holders. BENN, A. July 31, 1945, No. 19715. (Class 40 (v)) A holder for a piezoelectric crystal comprises a pair of electrode plates 3, 4 each provided with a contact pin 5 or 6, a spacing member 2 of insulating material between said plates, the spacing member enclosing an aperture 1 of suitable size to contain the crystal. The thickness of the spacer 2 is adjusted to give the desired operating characteristics when the electrode plates are held in clamping engagement by means of screws 9, which are insulated from one of the plates by bushes 7. After assembly and adjustment, an insulating housing 8 is moulded round the unit to provide a hermetic seal.
Patent GB-738706-A (GB)
Title: Magnetic switching system
IPC: G06F7/38
Filed: 1953-07-16
Abstract: 738,706. Digital electric calculating-apparatus. RADIO CORPORATION OF AMERICA. July 16, 1953 [Aug. 1, 1952], No. 19778/53. Class 106 (1). [Also in Groups XXXVIII and XXXIX] A magnetic switching system comprises input coils inductively coupled to first magnetic cores in accordance with a first code, transfer coils inductively coupling the first cores to second magnetic cores in accordance with a second code, and further coils coupled to the second cores in accordance with a third code, the second cores being divided into groups each having an output coil connected thereto. The switching systems described are modifications of those described in Specification 737,420. The general arrangement shown in Fig. 2 employs two sets of magnetic toroidal cores A, B (represented by elongated rectangles), and windings 24, 44 and 22, 42 for driving the cores to opposite, " N " (normal) and " P," saturation conditions respectively. Three binary input signals A applied through double triodes to coils 26a, 26b, 28a, 28b and 30a, 30b selects one of the eight cores A to be driven from N to P as described in Specification 737,420, and simultaneously applied input signals B similarly select one of the cores B in each of three groups shown. Since each core A is coupled to cores B, according to a predetermined code, through the windings 44 of an inhibiting transfer coil 46, a core B is driven from N to P to produce a pulse in the associated output winding 60a, 60b or 60c (one for each group) only if it is selected by input signals B and is not coupled to the selected operative core A. The cores may be restored to condition N by exciting coil 25 via triode 27. In a modification, the transfer coils tend to drive the cores B to the condition P and the inhibition is provided by the coils associated with the B inputs; such an arrangement may be applied to the addition of binary-coded decimal digits (Fig. 4, not shown). Fig. 5 shows an alternative arrangement to reduce the number of cores required for such an addition. The three highest binary digits of the addend and sugend decimal digits are applied to inputs for cores A coupled to cores B through driving transfer coils 73, and the lowest addend and sugend binary digits and a carry digit are applied to inputs for a third set of cores C coupled to cores B through inhibiting transfer coils 152. The lowest binary digit of the sum is obtained from output coil 160 coupled to selected cores C, and the other binary digits and new carry digit are obtained from coils 158d, 158c, 158b, 158a, each coupled to a group (pair) of cores B. Reference is made to the use of still further sets of cores. Specification 725,689 also is referred to.
Patent GB-787171-A (GB)
Title: Flexible conduit
Inventor: LOCKHART HUGH MCCLELLAN
IPC: F16L51/02
Filed: 1956-06-27
Abstract: 787,171. Flexible conduits; expansion joints. POWER AUXILIARIES, Ltd. June 27, 1956 No. 19869/66. Classes 99(1) and 99(2). A conduit 10 comprises a fluid-impervious, flexible outer wall 12 having an inner surface which is undulating, rough, irregular or convoluted, and a fluid-pervious, flexible, inner wall 22 composed of a number of braided strands and which minimises turbulence and pressure drop in the conduit. As shown, tubing 12 of sheet metal or synthetic plastic and provided with annular, spiral or helical corrugations 14, has cylindrical stubs 16 to which are secured sleeves 20 mounting flanges 18. The lining 22 of braided or woven wires or natural or synthetic fibres is secured within the tubing by sleeves 26.
Patent GB-849740-A (GB)
Title: Improvements relating to machines for applying liquid to the ground
IPC: A01M21/04
Filed: 1957-06-25
Abstract: 849,740. Rollers, weeds destroying. GIBSON, H. M. June 16, 1958 [June 25, 1957; Sept. 4, 1957], No. 19991/57. Class 6(1). A machine for applying liquid weed-killer on the ground comprises a liquid feed tube 1 provided with a row of apertures 7 mounted above a ribbed roller 4 and fed with liquid from a supply tank 9. The tank 9 is provided with a valve 13 which is operated by a spring-urged plunger 14 connected to a lever (not shown) which contacts the ground to close the valve when the machine is stationary. A handle 5 is provided and raising of the handle 5 to move the machine forward causes the spring 17 to move to open the valve 13, The flow of liquid from the tank 9 may be controlled by a centrifugal governer driven by the roller and acting on a supply valve or alternatively a liquid pump may be used.
Patent GB-480847-A (GB)
Title: Improvements in or relating to suppressed carrier wave signalling systems
IPC: H04J1/06
Filed: 1937-07-20
Abstract: 480,847. Wireless signalling systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. July 20, 1937, No. 20089. Convention date, July 20, 1936. [Class 40 (v)] In a suppressed carrier system in which preferably only a single sideband is transmitted the carrier is, before suppression at the transmitter, modulated with two synchronizing frequencies in a predetermined ratio. At the receiver the resultant two synchronizing frequencies are compared to give an indication or used to control the local carrier generator. The synchronizing frequencies may be 25 and 50 cycles per second when a small error in the re-supplied carrier will produce a large change in the ratio of the frequencies. The frequencies may be multiplied so as to be equal and applied to a phase measuring bridge circuit or may be used to control synchronous motors. At the transmitter the synchronizing frequencies may be obtained from one another or from a third frequency by multiplication or division of frequency. The synchronizing frequencies may lie outside the frequency limits of the signal or be inserted in frequency gaps in the signal.
Patent GB-371232-A (GB)
Title: An improved hand operated spinning machine
IPC: D01H1/00
Filed: 1931-07-13
Abstract: 371,232. Hand operated spinning- machine. RAJAGOPALAN, D. N. M., 109, Akkipet, Bangalore, Mysore, India. July 13, 1931, No. 20090. [Class 120 (ii).] Sliver is given a false twist by a tube 31, is twisted by a flyer 15 and wound on a bobbin 16 which is rotated at a greater speed than the flyer and is reciprocated by a rod 18. A main shaft 2, actuated by a crank handle 1, is geared with a shaft 4 provided with wheels 8, 9, 32, which are respectively geared with the flyer 15, the bobbin 16, and the twist tube 31, and reciprocates the rod 18 by means of a cord or wire 21. The twist tube comprises rollers 28 offset from the centre line of the tube and around which the sliver is passed. The bobbin is carried by a tube 12 and is connected by means of a lug 17 through slots in the tube with the rod 18, and the flyer rotates on the tube. The cord or wire 21 is operated by an arm 25 loosely mounted on the shaft 2 and driven by a pin 26 carried by an arm 27 fast on the shaft.
Patent GB-422706-A (GB)
Title: Improvements in driving mechanism for pedal cycles and motor cycles of the chainlesstype
IPC: B62M11/00
Filed: 1933-07-17
Abstract: 422,706. Cycle driving mechanism. ALLEN, T., 22, Cambridge Road, King's Heath, Birmingham. July 17, 1933, No. 20107. [Class 136 (ii)] In coupling-rod driving mechanism for cycles of the pedal or motor-driven type, the lengths of the coupling-rods can be varied and the position of the crank-pin on the driven crank adjusted. The means for varying the lengths of the coupling-rods comprise a right- and lefthanded screw F which is turned to bring the two parts N and C of the rod closer together or further apart, and then is secured against further movement by a binding-screw O. The crank pins J on the driven cranks A lie in a curved slot concentric with the axle D, and can be held in any desired position in this slot by opposite lock-screws and a nut on the pin. The cranks A may be disposed at an angle of 150‹ to one another to avoid fouling of the coupling-rods C at dead-centre, the pedal cranks B being correspondingly off-set, but the pedals E being mounted in line 180‹ apart. The rotation of the cranks A is conveyed to the road-wheel by a multiplying sun-and-planet gear consisting of a stationary wheel G<1> having internal teeth, with which mesh pinions G<2> mounted on a disc fixed to the cranks A. The pinions G<2> engage also the teeth of a wheel G<3> fixed to the road-wheel, and may impart one or more speeds thereto. Ball-bearing brackets enable the road-wheel to be removed for repairs without affecting the coupling-rod adjustments.
Patent GB-533571-A (GB)
Title: Improvements relating to bottles or containers for holding liquids
IPC: B43L25/02
Filed: 1939-10-11
Abstract: 533,571. Inkstands; pen wipers. RAYNER, E. S. Oct. 11, 1939, No. 20132. [Class 146 (iii)] In an ink or like container 10, Fig. 1, with a well 22 to receive the liquid residue and having an abutment 62 to support an article during filling and prevent its lower extremity from touching the bottom of the well, the upper part of the well is elongated in plan to accommodate and correctly position articles of various sizes. The well tapers downwardly and may be situated wholly below the sloping bottom of the liquid space. The side walls 18 may be continued down to the base 26 of the well. The cover 12 may be threaded or cemented in position. The abutment may be formed in a detachable member 78, Fig. 5, of glass, plastic, rubber &c. with an outer flange 80 seated on the base 64 of the container. The base may have several members 78 and the cover 68 be provided with corresponding inlets 76 in addition to the stoppered inlet 70. A base 90 of wood &c. may be moulded around the well and cemented to the underside of the container. The well may be situated wholly above the bottom of the liquid container, Fig. 7, which may have sloping sides and a flat end 95 wider than the other end 96 which is curved. In this form, the well is filled by tilting the container. A rubber washer may be used at the inlet to act as a wiper.
Patent GB-684087-A (GB)
Title: Improvements in the wet separation of materials in the form of fine particles, such as finely divided coals and ores
IPC: B03B5/62
Filed: 1948-07-28
Abstract: 684,087. Washing grannular materials. HARVENGT, E. July 28, 1948 [Aug. 2, 1947], No. 20144/48. Class 82(ii) Fine particles are separated in washing troughs by deposition from a liquid current flowing along the trough, the lower layer of deposit being extracted from the trough at points situated in close proximity, the stream of materials extracted at each point being grouped with several other such streams from successive points to form a continuous size-controlled common discharge stream and being subjected to at least one narrowing of cross-section before it is incorporated in such common discharge stream. A washing trough 1, Fig. 1, is provided with openings 3, groups of which discharge through cones 4, having partitions 5 arranged to cause a narrowing of the cross-section of the stream discharged through each opening 3. The cones 4 may be provided with discharge adjusting means, e.g. as described in Specification 684,084. In a modification, Fig. 2, a substantially unbroken series of openings 3 is provided, each opening having a cone 6, and groups of cones 6 discharging into cones 4. In a further modification, Fig. 3, a cone 7 is provided for each pair of openings, the discharges from the openings being separated by partitions 8.
Patent GB-1141637-A (GB)
Title: Flame retarding composition
IPC: B27K3/52
Filed: 1966-05-06
Abstract: 1,141,637. Fire proofing. STAUFFER CHEMICAL CO. 6 May, 1966 [27 May, 1965], No. 20198/66. Heading DIP. Wood is impregnated with a solution of phosphorus trichloride, oxychloride or thiochloride. The solvent is kerosene, naphtha, benzene, hexane, butane, carbon tetrachloride, methylene chloride, or chloroform. The wood may be simultaneously or separately treated with a resin in solution. The resin is epoxy, halogenated epoxy, polystyrene, polyethylene, polybutene, polymethylmethacrylate, halogenated polyester, amine-aldehyde, polyvinyl chloride, polyvinylidene chloride, vinyl chloride-vinyl acetate copolymer, or vinyl chloridevinylidene chloride copolymer. Impregnation may be by application of alternate pressure and vacuum.