baber/WOPTO huggingface dataset:
Patent GB-442098-A (GB)
Title: Improvements in or relating to the manufacture of pipes from asbestos-cement and thelike
IPC: B28B21/50
Filed: 1934-10-20
Abstract: 442,098. Fibrous-cement pipes. MAZZA, A., 8, Piazza Corridoni, Genoa, Italy. Oct. 20, 1934, No. 30111. Drawings to Specification. [Class 99 (ii)] A pipe of fibrous-cement &c. is provided with a socket by applying to the end of the pipe while the latter is still in a moist condition, or to intermediate points of a multiple-length pipe, a number of thin concentric layers of a mixture of fibrous cement. The operation is effected in a machine of the kind described in Specifications 225,543, 240,142, [both in Class 99 (ii)], and 373,240, but with the employment of mixture-applying belts of from 30-40 cm.. width instead of the normal 3-4 m. The socket is subjected to a variable or constant pressure during formation, and after hardening it is internally and externally turned to its final shape. Specification 159,832, [Class 87 (ii)], also is referred to.
Patent GB-535863-A (GB)
Title: Improvements in or connected with baling and like presses
IPC: B30B9/30
Filed: 1939-11-16
Abstract: 535,863. Baling presses. TONGE, F. Nov. 16, 1939, No. 30174. [Class 94 (i)] Relates to a baling press of the kind in which the compression chest or box is provided with a loose bottom which, when the chest is moved into the baling-position, rides up on to a fixed base that supports it against the pressure of the ram or plunger. According to the present invention, the chest is provided with means for supporting the loose bottom during the filling period, and for depositing the bottom on a fixed base when the chest is moved into the baling position. The chest 4, Fig. 2, is mounted on wheels 5 and is provided with a door 9 for removal of the bale. Angle bars 10, situated in the lower part of the chest adjacent the side walls, are pivoted to the ends of links 11, the other ends of which are pivoted on the axles of the wheels 5 or on the side walls of the chest. The links 11 are arranged parallel with one another to enable the bars 10 to be raised and lowered. In the filling position, the bars 10 are raised and a loose bottom 12 is placed on them to support the materials in the chest. In the baling position, below the ram or plunger 8, the bars are lowered to deposit the loose bottom 12 on a fixed base 7, Fig. 3. Preferably the bars are raised and lowered automatically by arranging fixed abutments 13, 15 to engage the links 11 when the chest is moved into the filling and compressing positions. The bars 10 may be retained in their raised positions by engagement with flattened areas 17 on the ends of the links 11. After compression, the door 9 is opened and the chest moved away leaving the bale supported between the loose bottom 12 and the plunger 8.
Patent GB-998344-A (GB)
Title: Automatic door closing unit
IPC: E05F3/10
Filed: 1963-07-30
Abstract: 998,344. Door closers. R. MANKEL [trading as DORKEN & MANKEL KOMMGes]. July 30, 1963 [Sept. 14, 1962], No. 30185/63. Heading E2M. An automatic door closing unit comprises a stub shaft 19 for connection to a door and having a closing cam 27 acting on a spring loaded slide comprising a head 55 and two rods 43, and a hydraulic damping assembly insertable into the casing 14 of the unit as an independent assembly, the spring loading of the slide being adjustable from outside the casing. As illustrated the unit is of the flush floor fitting type for operating a swing door and has a detachable cover plate 13. The slide head 55 comprises two sheet metal stampings giving an approximate H-section (Fig. 4) with recesses 56. Mounted in the recesses are the ends of the rods 43, rollers 58 running in guideways 60 in the side walls of the casing, and thrust rollers 59 bearing on the cam 27. As the door is opened the cam 27 operates on one of the thrust rollers 59 to compress springs 61 embracing the rods 43 and abutting against a bridge piece 40 having holes through which the rods slide. Precompression of the springs 61 may be altered from outside the casing by turning a screw spindle 46 engaging a threaded hole in the bridge piece 40. The shaft 19 carries a second cam 33 held in place by a pin 31 on an extension 30 of the shaft and engaging a roller 92 mounted on a control rod 90 of a damping assembly 70. The assembly is located above the slide by screws 93 (Fig. 4) and comprises a cylinder 71 containing a pot shaped piston 73 which moves into the cylinder against the action of a spring 74 and bears against the control rod 90 which comprises two web members spaced apart by rivets. As the door is opened from the closed position illustrated the spring 74 moves the piston out of the cylinder 71 to follow the cam 33 thus drawing oil from the casing into the cylinder through a filter 82 and a one way ball valve 78. On release of the door the slide springs 61 cause the door to return towards its closed position and thus the cam 33 to force the piston 73 into the cylinder 71. The piston forces oil out of the cylinder through a passage 79 and a throttle valve 80 which may be adjusted by a shaft 83 from outside the casing to alter the rate at which the door closes. A safety valve is provided in the cylinder 71 to open whenever the oil pressure exceeds a predetermined level thus allowing the door to be forced shut. In modification (not shown) the cam 27 may have notches engaging the thrust rollers 59 to retain the door in the open or closed position, the unit may be built into the frame of a door, and may control doors which open from a fixed stop to one side only.
Patent GB-1334265-A (GB)
Title: Tow treatment
IPC: D01D10/04
Filed: 1971-06-28
Abstract: 1334265 Treating fibre tows MONSANTO CO 28 June 1971 [29 June 1970 30 June 1970 (2)] 30186/71 Heading D1L In the treating of a tow of synthetic filaments with a liquid the tow is advanced through a confined zone in which liquid is forced through it, the flow rate being at least where T is the thickness of the stream of liquid in inches, # is the width of the confined zone, h is the height of the confined zone, N is the number of filaments in the tow, Á is the viscosity of the liquid in pounds/foot-second, and p is the density of the liquid in pounds/ cubic foot. The apparatus which may be used is as illustrated in Fig. 1, the tow 15 advancing through the apparatus with liquid being passed through the inlet 21 and so through the tow and then passing back through at locations 23. The liquid may pass through again and back after leaving the outlet. In the apparatus the dimension h is the thickness of the tow (the vertical distance between surfaces 18 and 19). After leaving the outlet the liquid falls to a reservoir to be recirculated, the overflow from this reservoir being passed to a preceding similar apparatus (if there is one) and the reservoir receiving overflow from a succeeding bath (if there is one, or fresh liquid otherwise). The liquid may be water, to wash the tow, it may be heated water (or ethylene glycol or polyethylene glycol) to heat the tow so that stretching thereof may be effected, the tow having just come from a spinning bath, or it may be a dye solution, to dye the newly spun fibres in a gel state. The tow may comprise acrylonitrile filaments, with a proportion (e.g. 7%) of vinyl acetate.
Patent GB-960213-A (GB)
Title: Improvements in or relating to voltage control devices
Inventor: HENMAN CECIL BOURNE
IPC: H02M5/12
Filed: 1960-04-26
Abstract: 960,213. Transformer systems. BRENTFORD TRANSFORMERS Ltd. March 14, 1961 [April 26, 1960], No. 30249/63. Divided out of 960,211. Addition to 851,004. Heading H2H. A voltage control system for changing the voltage between a supply source and a load comprises a toroidally wound auto-transformer VCD having the supply L, N connected to diametrically opposed fixed taps and provided with two pairs of movable taps C1 C2 and C3, C4 each diametrically opposed and movable synchronously in opposite directions, the taps C1- C4 being connected to the primary windings P1-P4 of a transformer ST arranged in additive sense and having equal numbers of turns, the arrangement being such that the voltages applied to the windings P1-P4 from the taps C1-C4 are equal, movement of the taps producing a voltage in the secondary winding S which varies from a maximum in one direction through zero to a maximum in the opposite direction. With such an arrangement the current carrying capacity of the autotransformer VCD need only be one quarter of the load requirement.
Patent GB-359682-A (GB)
Title: Safety device for reversible internal combustion and other engines
IPC: F01L13/00
Filed: 1930-10-09
Abstract: 359,682. Reversing engines. KRUPP GERMANIAWERFT AKT.-GES., F., Gaarden, Kiel, Germany. Oct. 9, 1930, No. 30250. Convention date, Oct. 29, 1929. [Class 122 (iv).] In a reversible engine applicable for driving ships, the supply of motive fluid to the engine cylinders is cut off, on reversal of the engine, by a fluid - circulation device dependent on the continued forward rotation of the engine while it is slowing down and before reversal of the direction of rotation actually takes place. As applied to an internalcombustion engine, the engine drives a gear-wheel pump A connected to a circulating system B<1>, B<2>, D<1> D2, provided with three-way cocks C<1>, C<2>, controlled from the reversing lever L. Check valves E<1>, E<2> are provided in the pipes D<1>, D<2>, which are connected by pipes F to a cylinder G fitted with a piston H connected to an eccentric J on which is pivoted a lever acting on the inlet valve N of the liquid-fuel pump M. In the forward-running position, shown in Fig. 1, the pump A circulates liquid in the pipes Bl, D<1>, B2 as shown by the arrows. On moving the lever L and the cocks C<1>, C<2> into the reversing position, the pump A is connected to the pipe D<2>, but circulation is prevented by the check valve E<2> and the liquid pressure lifts the piston H and opens the inlet valve N of the fuel pump M, stopping the feed of fuel, until the engine and the pump A start to rotate in the reverse direction.
Patent GB-711457-A (GB)
Title: An improved method of and apparatus for controlling the temperature of superheated steam and the temperature of reheated steam in a steam generating unit
IPC: F22G5/04
Filed: 1952-11-28
Abstract: 711,457. Water-tube steam boilers: superheating and reheating. BABCOCK & WILCOX, Ltd. Nov. 28. 1952 [Nov. 29, 1951], No. 30265/52. Classes 123(2) and 123(3)  A steam boiler comprises a furnace 10 which is lined with steam-generating tubes and is fired by horizontal rows of burners 12 ... 15 disposed within a wind-box 18, the gases from said furnace flowing through an outlet 150, locating a secondary superheater 144 ... 146, to parallel convection passes, namely, primary superheater section passes 72, 74 and a reheater pass 80 having their outlets fitted respectively with dampers 94, 102 and 114. Ducting 231, with a damper 244 and including a fan 236, is provided for recirculating gases from the boiler flue 232 back to the furnace 10, and a spray attemperator 124, preferably of the kind described in Specification 656,551, with water-supply control valve 130 is fitted in the superheated steam outlet pipe 122 and a similar attemperator 160 with valve 164 in the pipe 173 leading to the inlet leader 110 of the reheater. The fuel supply to the burners is controlled by a damper, not shown, and a secondary supply of air to the windbox by a damper 22. The several dampers and the valves 130, 164 are operable by motors such as 94A, 102A, 114A, 132, 166, 246 controlled by electric switches which have forward, reverse and stop push buttons and are disposed adjacent a steam pressure gauge, superheat and reheat temperature indicators, and steam and air flow measuring devices. At normal loads, superheat temperature is controlled by the attemperator 124 and reheat temperature by regulation of the gas flow through the pass 80. At lower loads gases from the flue 232 are recirculated through the furnace 10, and at higher loads the reheat attemperator 160 is brought into operation.
Patent GB-1412556-A (GB)
Title: Electrical musical instrument phase shift vibrato system
IPC: G10H1/043
Filed: 1973-06-26
Abstract: 1412556 Electrophoric musical instrument HAMMOND CORP 26 June 1973 [3 July 1972] 30383/73 Heading G5J To introduce vibrate phase modulation of the order of 360 degrees or more into a music signal at vibrato frequency (typically 6 Hz), four identical phase modulator circuits in cascade are introduced in the music output line, each modulator being driven from the same vibrato oscillator line 42 and power supply line 28. Each modulator comprises a conventional phase splitter circuit based on transistors 46, 52, supplying two music outputs from input 30 via capacitor 44, of equal amplitude and 180 degrees phase difference. These feed via capacitor 56 and FET 58 to output 30 which provides input to the next modulator. FET 58 acts as a variable resistor, and as its resistance varies the working point of output 30 on the phase diagram swings in an arc of constant radius, varying phase but not amplitude. The resistance between source S and drain D of FET 58 depends on the voltage between gate G and the mean point of S and D, whereas the modulating potential from the oscillator is measured relative to earth line. If the modulating potential is applied directly to gate G, the variation of mean potential of G and D causes harmonic distortion, but this is largely eliminated by feeding gate G with an additional correcting signal via capacitor 62 from the mean point of S and D, realized by tapping the junction of equal resistors 64, 66. To operate FET 58 optionally, gate G is biased via potentiometer 69 from bias line 71.
Patent GB-1432963-A (GB)
IPC: C01B33/26
Filed: 1973-06-26
Abstract: 1432963 Amorphous zeolite precursor TEXACO DEVELOPMENT CORP 26 June 1973 [14 July 1972] 30399/73 Heading C1A An amorphous precursor for a crystalline aluminosilicate is prepared by forming an aqueous mixture of sodium aluminium silicate in which the composition in terms of mole ratios is Na 2 O/SiO 2  from 0À8 to 3À0; H 2 O/Na 2 O from 35 to 200 and SiO 2 /Al 2 O 3  from 1-3 to 2À5, removing the water from the mixture by contacting with a water-soluble solvent and drying the resultant amorphous material. The precursor thus obtained may be converted into a crystalline zeolite by mixing with water, ageing at <100‹ F. for 8 to 170 hours and subjecting to a hydrothermal treatment at a temperature of 150‹ to 325‹ F. for-at least 3 hours to give a type 4A zeolite. Type 3A, 5A, X and Y zeolite may be made by mixing with -an aqueous solution of a potassium salt, a calcium salt, or specified proportions of silicate ion, followed by the ageing and hydrothermal treatment. Specified solvents are acetone, methyl ethyl ketone, methyl alcohol, ethyl alcohol, dimethyl sulphoxide or dimethyl formamide. Suitably the starting mixture can be formed by reacting an aqueous solution of sodium silicate with one or more of CO 2 , SO 2 , H 2 S, sodium bicarbonate, bisulphite or hydrosulphide and adding sodium aluminate or by reacting an aqueous solution of sodium aluminate and sodium hydroxide with an aqueous solution of sodium silicate.
Patent GB-655927-A (GB)
Title: Improved telephone substation apparatus
IPC: H04M9/00
Filed: 1948-11-23
Abstract: 655,927. Loud-speaker systems. STANBURY, K. S. Nov. 23, 1948, Nos. 30452 and 30453. Convention dates, Dec. 22, 1947, and March 22, 1948. [Class 40 (iv)] In a loud-speaking telephone substation, coupling between the microphone and the loudspeaker is substantially avoided by a circuit comprising a thermionic valve connected as a phase splitter and feeding in anti-phase the ends of a resistor from the null point of which is connected the grid of the loud-speaker amplifier. In the loud-speaking telephone system shown, the grid of the receive amplifying valve V3 is connected to a point Z on a resistor AB, at which negligible potential variations with respect to earth result from the signals from the microphone M. The ends of the resistor are fed from the points X, Y in the circuit of the transmitting amplifier valve V2, which is both anode and cathode loaded so that the potentials at A and B are displaced 180 degrees relative to earth. The line transformer T constitutes the anode load in the circuit shown and the cathode load in a modification (Fig. 2, not shown). A further system is described with reference to Fig. 3 (not shown), in which the grid of the receive amplifier is connected to the neutral point on a resistance strapping the anodes of two transmitting amplifier stages.
Patent GB-1134247-A (GB)
Title: Fastener studs
Inventor: NORWOOD JOHN FREDERIC CARR
IPC: F16B21/08
Filed: 1966-07-07
Abstract: 1,134,247. Stud and socket fasteners. VAUXHALL MOTORS Ltd. 8 June, 1967 [7 July, 1966], No. 30467/66. Heading E2B. A fastener stud 1 of synthetic resin material for press-fitting into a hole in a support, has an unsplit hollow shank 3, the external surface of which, from one end thereof towards the other changes progressively from circular in a first radial plane to maximum ovality in a second radial plant and back to circular in a third radial plane and then to maximum ovality in a fourth radial plane and back to circular in a fifth radial plane; and the hollow of the shank of which extends through the length of the stud. Between the first and third and third and fifth radial planes, the surface forms projecting shoulders 6, 8 to enable two articles 11, 12 to be engaged by the stud as shown. The shoulders 6 can be angularly displaced relative to the shoulders 8.
Patent GB-473114-A (GB)
Title: Eccentric pedal for bicycles
IPC: B62M3/04
Filed: 1936-11-09
Abstract: 473,114. Pedal crank driving - mechanism. HAUSTRATE, A. Nov. 9, 1936, No. 30470. Convention date, Nov. 19, 1935. [Class 136 (ii)] An eccentric mounting for bicycle pedals comprises a collar 6 at the end of the crank 1, ar outer ball-bearing race 9 screwec into the collar, two rows of balls 7, 8, an eccentric 5 forming the inner race of one row of balls 7. a circular member 10 screwed on the recessed periphery of the eccentric 5 and adapted to form the inner race for the second row of balls 8, adjusting washers 11 between the eccentric 5 and the member 10, a threaded hole 4 in the eccentric to receive the pedal spindle, and holes 12 in the eccentric for lightness. In a modification, the collar 6, instead of being integral with the crank, forms part of an open casing which is attached by means of a screw engaging a tapped hole in the end of the crank and passing through a radial slot in the side wall of the casing, whereby the eccentricity may be adjusted. Movement of the casing relatively to the crank is prevented by two screws passing through lugs integral with the casing and abutting against opposite edges of the crank. The Specification as open to inspection under Sect. 91 describes also a construction in which the pedal spindle is screwed into an eccentric recess in a casing which is rotatably mounted by a pair of ball bearings on an eccentric secured to the end of the crank. This subjectmatter does not appear in the Specification as accepted.
Patent GB-517499-A (GB)
Title: Improvements in or relating to rear components for photographic objectives
IPC: G02B13/00
Filed: 1938-10-21
Abstract: 517,499. Photographic objectives. KODAK, Ltd. Oct. 21, 1938, No. 30481. Convention date, Oct. 23, 1937. [Class 97 (i)] A rear component to be added to a photographic objective to increase the aperture consists of a double convex lens VIII cemented to a thick meniscus lens IX; the radius of curvature of the rear surface of the meniscus being less than that of the cemented surface and the thickness of this element being at least twice that of the lens VIII. The thickness of the component VIII-IX is at least half its diameter and preferably exceeds threequarters thereof. The rear component preferably also includes at least one weak positive meniscus lens VII spaced from the compound member and having its convex surface turned towards the incident rays. Data are given for the system shown which, when added to the objective shown in dotted lines, increases the aperture from F/2 to F/0.81. Specifications 316,698 and 335,335, [both in Class 97 (i)], are referred to.
Patent GB-605750-A (GB)
Title: Starter for internal combustion engines
IPC: F02N15/06
Filed: 1946-01-03
Abstract: 605,750. Turning-gear. BENDIX AVIATION CORPORATION. Jan. 3, 1946, No. 305. Convention date, Jan. 8, 1945. [Class 7 (v)] An engine starter with an armature 3 which centralises with respect to the field coils 2 when energized, carries on one end of the armature shaft 40 a pinion 47 connected to said shaft through a tension spring 43 and overrunning clutch 52, 53, the other end of the shaft 4, which is pressed into the off-centre position by the spring 11, having a groove 14 which is engaged in the off-centre position by -an extension 13 of the starter solenoid plunger 20 which when energized rises out of engagement with the said groove 14 and compresses the spring 32 through the lever 31 so pressing the member 27 into a groove 28 in the shaft 4 and holding it in the .centred position. This centering movement partially engages the pinion 47 with the engine gear 48, the full meshing of the gears 47, and 48, and the closing of the clutch 52, 53 being effected by the nut 49 on the screwed sleeve 39. When the engine fires and the the pinion 47 is accelerated above the speed of the starter, the pinion partially breaks mesh with the engine gear 48 and is permitted to run freely by the breaking of the clutch 52, 53 by the spring 55.
Patent GB-286759-A (GB)
Title: Improvements in or relating to the diaphragms of electrically operated sound producing horns and the like
IPC: G10K9/20
Filed: 1926-12-03
Abstract: 286,759. Rogers, T. S. Dec. 3, 1926. Diaphragms. A diaphragm for an electrically operated sound producing apparatus or horn comprises a number of laminae a<1>. a<2>, a<3> secured together perimetrically between an annular abutment b in the casing c and a flange d on the horn e and reinforced centrally by washers g of different diameters. The washers, laminae, end an armature are held together by a rivet h. The laminae, which may be made of hard-rolled phosphorbronze sheet or of tempered steel, are arranged with their grains crossing one another.
Patent GB-972437-A (GB)
Title: Improvements in fixing an arm to the end of a spindle
Inventor: FORD ALFRED CHARLES WILLIAM
IPC: A61F2/58
Filed: 1962-08-09
Abstract: 972,437. Securing levers on shafts. HUGH STEEPER Ltd. Aug. 6, 1963 [Aug. 9, 1962], No. 30598/62. Heading F2U. [Also in Division A5] A lever 4 is secured on a spindle 6 by a connecting plate 8 fast or integral with the spindle 6 and the plate 8 or the end of lever 4 has a lip 12 which closely surrounds the end of the lever 4 or plate 8. The lever 4 is held against the plate 8 by a screw 13 and/or by bending over the lips 12, and/or by brazing or welding.