baber/WOPTO huggingface dataset:
Patent GB-621246-A (GB)
Title: Improvements in and relating to barrows, handcarts and the like
IPC: B62B1/24
Filed: 1947-02-10
Abstract: 621,246. Hand-carts. WESTOVER, W., (trading as WESTOVER & CO., W.). Feb. 10, 1947, No. 3876. [Class 108 (i)] In a barrow or hand-cart of the type having a carriage 5 provided with an axle 3 on the ends of which wheels 4 are rotatably engaged, shafts or handles 6 extending therefrom and a body 1, which may be in the form of a scoop, in association with a lever 13 of which one arm 12 is formed to engage a loop or eye 11 on the body 1, whereby the body may be held in the normal position for transport, and the other arm 16 may be actuated to release such engagement, the body 1 is arranged to tip coaxially with the wheels 4. The lever 13 is held in engagement with loop or eye 11 by a spring 17. The barrow is provided with legs 8, adjacent to the shafts 6, to support it in a suitable position for loading.
Patent GB-441738-A (GB)
Title: Improvements in or relating to propellers of variable pitch
IPC: B64C11/34
Filed: 1935-02-06
Abstract: 441,738. Variable-pitch propellers. JABLONSKY, B., 13, Maresfield Gardens, Hampstead, London. Feb. 6, 1935, No. 3902. [Class 114] In a variable-pitch propeller, the blade roots are formed with inner bearing surfaces which abut against each other or against an intermediary block, these surfaces being set obliquely to the longitudinal axes of the respective blades. The blades 1a, 1b are formed with flanged roots 3 which abut together and are set at an angle to the axes of the blades, and these flanges are held within a collar 4 attached to a hub 5. In a modification where 3 blades 1a, 1b, 1c, are used, the blade roots abut against a common block 7, and are held within an enclosure 8. In these constructions pitch adjustment is effected automatically. When over-riding hand control is desired, the blade roots 14, 15, are extended and provided with slots 21, 22. These are engaged by a cross-pin 23, upon a rod 25 axially slidable within the propeller shaft. In a modification, there is a passage 11 in the boss through which a control fluid is forced or exhausted to chambers 9 in each blade root. Such chambers are divided into pressure and suction portions by a diaphragm 10 extending from the main boss. The blades may be mechanically connected so that they have equal angular movements.
Patent GB-629480-A (GB)
Title: Improvements in the mounting of pictures, photographs, designs, mirrors, letterpressand the like
IPC: A47G1/06
Filed: 1948-03-05
Abstract: 629,480. Trays, &c. HOARE, R. R. March 5, 1948, No. 3925/47. [Class 128] [Also in Groups XV and XVIII] In a modification of the device claimed in Specifications 575,019, [Group XV], and 576,459 which may be used as a tray, a design affixed on the back of a sheet of glass or transparent plastic material is displayed around the whole or part of the peripheral portion in addition to or in place of the central design, a backing card being secured under pressure by suitable adhesives to the front sheet in places which do not interfere with the design. A mirror border or centre may be employed on the glass, and the edges may be sealed with paint or may be enclosed by a frame.
Patent GB-1103379-A (GB)
Title: Third rail current collector
IPC: B60L5/38
Filed: 1967-01-26
Abstract: 1,103,379. Current collectors. H. KRUEGER. 26 Jan., 1967 [28 Jan., 1966], No. 3969/67. Heading B7L. A third rail current collector has a collector shoe 1 in an insulating carrier mounted on a rocker arm assembly comprising two rocker arms 2 which are constructed as insulators and pivot on an axle 3, the shoe 1 being connected at 4 to an insulated cable 5 which conducts current to a connection terminal 8 of a cable leading to the motor of the vehicle. Each arm 2 has insulation rings 6 to increase the length of the creep path. The terminal 8 is insulated from the body of the collector by a ring insulator 9. The body of the collector is shielded from the live rail (not shown) by an insulation cover 7 through which the cable 5 passes.
Patent GB-430646-A (GB)
Title: Improvements in or relating to devices for transmitting and receiving ultra short electromagnetic waves
IPC: B30B9/12
Filed: 1935-02-07
Abstract: 430,646. Directive wireless signalling. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin, and KOHL, K., 51, Burgbergstrasse, Erlangen, both in Germany. Feb. 7, 1935, No. 4001. Convention date, March 9, 1934. [Classes 39 (i) and 40 (v)] An open or closed oscillating transmitting or receiving circuit is associated with a curved reflector having a small focal length compared with the wavelength which is either cut away at the portion having the largest curvature or is associated with an auxiliary reflector which replaces said portion and is so formed that waves reflected therefrom are incident on said circuit in correct phase. In one embodiment a parabolic reflector 1, Fig. 1, has its apex cut away and a valve 2 containing a closed oscillatory circuit 3 is placed in the opening, the glass wall 4 of the valve which is of spherical, hyperbolic or parabolic shape being partially coated internally or externally with metal. In a further embodiment, Fig. 2, the apex of the reflector 1 is replaced by a spherical reflector 5 the centre of which coincides with the focus of the reflector 1, and a closed oscillatory circuit 6 movable in any direction is placed at the focus. The radius of the spherical portion is equal to a whole number of wavelengths. The auxiliary reflector may be hyperbolic or parabolic in shape and of focal length equal to an odd multiple of a quarter wavelength or an integral multiple of a half wavelength according to whether an open or closed oscillatory circuit is employed.
Patent GB-535203-A (GB)
Title: Improvements in or relating to compressor regulators
IPC: F04B49/02
Filed: 1940-03-04
Abstract: 535,203. Regulating compressors. INGERSOLL-RAND CO. March 4, 1940, No. 4035. Convention date, March 22, 1939. [Class 8 (i)] [Also in Groups XXVI and XXIX] The throttle valve 69 of a motor driving a compressor is controlled at low pressures by a speed governor 17 and at higher but moderate pressures it is controlled in accordance with the pressure supplied through a pipe 85 to actuate a piston 83 which is caused to unlatch and move a lever 73 loose on the throttle shaft which in turn acts on a lever 65 keyed to the shaft. A latch 99 limits the motion of the lever 73. Further rise of pressure unloads the compressor by admission of the air past a valve 137 to act on a piston 121 and so close an air-inlet throttle valve 119. Simultaneously, the valve closes an atmospheric port, and delivers compressed air through a pipe 133 to a cylinder to act on the lever 65. The speed governor is connected to a lever 64 keyed on the engine throttle valve shaft by a link comprising telescopic rods with an interposed spring.
Patent GB-1518473-A (GB)
Title: Holding circuit for use with a receiver
IPC: H04Q3/04
Filed: 1977-02-01
Abstract: 1518473 Selective signalling TELEFONAKTIEBOLAGET L M ERICSSON 1 Feb 1977 [9 Feb 1976] 04112/77 Heading G4H [Also in Division H3] A reference generator (Fig. 2) for a multifrequency receiver discriminates against interference frequency bursts by their duration. The receiver has, for each possible frequency, in parallel, a band-pass filter feeding a rectifier feeding a comparator, the comparators also receiving the reference Uref from the reference generator (Fig. 2) which is fed with the receiver input I. In Fig. 2, RL is a full-wave rectifier, G1 and G2 are gates each of which passes the larger of its two inputs, CF1 and CF2 are comparators, DF1 and DF2 are attenuators, RC is an RC circuit, and Ut1 and Ut2 are reference levels. Initially, the RC input to CF2 is less than Ut2 so CF2 provides the larger of its two possible outputs which will be the larger of the two inputs to G2 so Uref will equal it and there will be no output from the receiver. However if a signal is received at I, its peaks will exceed the lower input to CF1 thus producing pulses to charge up RC. When the charge level exceeds Ut2, CF2 provides the lower of its two possible outputs so Uref will become equal to the left input to G2 so there can be outputs from the receiver.
Patent GB-738854-A (GB)
Title: Improvements in dust disposal apparatus
Inventor: DENNING PETER ARTHUR RAYMUND
IPC: B04C5/15
Filed: 1953-02-13
Abstract: 738,854. Centrifugal separators. BABCOCK & WILCOX, Ltd. Feb. 11, 1954 [Feb. 13, 1953], No. 4161/53. Class 23. [Also in Groups XXVIII and XXIX] In a dust-separating apparatus comprising a cyclone 9, a chamber 16 below the cyclone, and a bunker 1 below the chamber, valves 73, 113 are respectively provided to seal the lower outlets from the cyclone and chamber, a valve 98 is provided for equalizing the pressure in the bunker and the pressure in the chamber when the valves 73, 113 are closed, and a valve 92 is provided for substantially equalizing the pressure in the cyclone and the pressure in the chamber when the valves 73, 113 are closed. During most of the separation the valve 73 is open and the valves 113, 92, 98 are closed so that dust collects in the chamber, the dustladen air being supplied by a outlet 8 and clean air being withdrawn by an outlet 10 fitted with an ejector (see Group XXVIII) so that the cyclone operates at sub-atmospheric pressure. After a predetermined period of separation the valves are automatically operated by a system (Fig. 8, not shown) comprising a timer, an electric motor driving a cam-shaft, electric switches operated by the cams, and electromagnetic units connected to the switches and controlling supply of fluid to the hydraulic cylinders actuating the valves. After the valve 73 is closed the valve 98 is opened so that air from the bunker flows through pipes 99, 90, 100, 101, 102, 103 to the chamber to equalize the pressures. The valve 113 is then opened and closed after the dust collected in the chamber is discharged to the bunker. After closure of the valve 113 the valves 98, 92 are respectively closed and opened so that air from the chamber passes through a pipe 93 to the inlet 8 to substantially equalize the pressures in the chamber and the cyclone. The valve 72 is then closed and the valve 73 opened, all the valves remaining in their positions for a fixed period after which the valve operating cycle is repeated. A bag filter is fitted at the top of the bunker to permit air to enter the bunker when dust is withdrawn therefrom. Dust from the bunker passes to a mixer and after damping to a suitable degree is discharged to a vehicle for removal. The chamber 16 is provided with a dust level indicator 81. In a modification the lead indicator is incorporated in the valve control system, so that valve operating cycle commences when the dust in the chamber reaches a predetermined level. In a further modification, in which the dust is supplied to the cyclone under pressure, the pipe 93 is connected to the air outlet 10 and the pipes 100. . . 103 are dispensed with. The invention may be applied to a series of units, comprising a cyclone and a chamber, mounted on a common bunker.
Patent GB-474559-A (GB)
Title: Improvements in and appertaining to processes for chromium plating ferrous articles
IPC: C25D5/36
Filed: 1937-02-12
Abstract: 474,559. Chromium - plating ferrous articles. RICHARDS, E. S., and ALUMINIUM BRONZE CO., Ltd. Feb. 12, 1937, No. 4179. [Class 41] The ferrous article is roughened as by scouring with pumice, immersion in acid or electro-etching in an acid bath, and coated with cadmium or zinc preferably by electrodeposition; the cadmium &c. coating is then etched, e.g. with sulphuric or hydrochloric acid or potassium hydrogen tartrate, and finally nickel and chromium are successively electrodeposited on the cadmium. &c. The ferrous article may be cleaned with alkali before roughening. The cadmium &c. surface may be brightened, by scouring with silver sand, before etching. A cadmium electrolyte contains cadmium and potassium cyanides and caustic soda. A zinc electrolyte contains zinc and potassium cyanides, caustic soda, aluminium sulphate and sodium carbonate.
Patent GB-755242-A (GB)
Title: Improvements relating to means for protecting human beings and animals against the biological injuries caused by radiation
IPC: E04B1/92
Filed: 1954-02-12
Abstract: 755,242. Neutron-absorbing materials. MISSOTTEN, S. Feb. 12, 1954 [Feb. 14, 1953], No. 4239/54. Class 98 (1). In a constructional means for protection against neutron radiations, a substance capable of reducing the velocity of transmission of the neutrons (such as carbon in the form of graphite, amorphous carbon or coal, or beryllium, or a composition containing carbon or beryllium) is combined with a substance capable of absorbing the neutrons (such as boron, cadmium or lithium, or substances containing them. The substances may be mixed with various binders and dense materials (such as barytes, heavy spar, or tailings of iron, steel or lead) may be added to provide in addition protection against γ-rays and X-rays. The velocity-reducing and absorbing materials may comprise separate plates or layers, and may be separated by an intermediate plate.
Patent GB-391085-A (GB)
Title: Improvements in or relating to electrical jointing clamps
IPC: H04Q1/06
Filed: 1932-01-14
Abstract: 391,085. Direct connections between conductors. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, and GARDNER, J., 38, Bramcote Road, Beeston, Notting- ham. Jan. 14, 1932, No. 4334/33. Divided on 390,903, [Group XXXIX]. [Class 38 (i).] In jointing clamps, particularly for use in the distribution system described in Specification 390,903, the cables to be connected lie in partially-intersecting channels so that they are pressed into contact with one another within the clamp. In one form, Fig. 3, the clamp comprises two parts held together by screws 31 so as to clamp the main cable between them and at the same time press it into contact with the branch cable which is inserted in the transverse hole 30. In another form, Fig. 3, the clamp comprises three sections 43, 44, 45, forming when clamped together two overlapping perpendicular channels through which the cables 46, 47 pass. Insulation 49 is held in position by key-grooves 51. The clamp shown in Fig. 6, which may also have a trans. verse hole such as 30, Fig. 3, serves to bond together three parallel cables at a point where one of them terminates.
Patent GB-735666-A (GB)
Title: Improvements in driven axles for motor road vehicles
IPC: B60K17/16
Filed: 1953-02-17
Abstract: 735,666. Differential gear. KIRKSTALL FORGE ENGINEERING, Ltd., and WILSON, R. H. Feb. 16, 1954 [Feb. 17, 1953], No. 4413/53. Class 80 (2). [Also in Group XXXI] In a motor vehicle driven axle 'comprising an axle casing 1, live axles 4, 5 driving road wheels and a reduction gearing comprising epicyclic gear trains driving the wheels at substantially equal torque while allowing differential movement thereof, the reduction gearing comprises an inner-epicyclic gear train 10, the sun-wheel S1 of which is engine driven, and two outer epicyclic gear trains 11, 12, the sun-wheel S3 of the train 11 being coupled to the annulus Al of the train 10, the annulus A3 being fixed and the planet carrier P3 being connected to one road wheel, and the train 12 having its sunwheel S2 coupled to the planet carrier P1 of the train 10, its planet carrier P2 fixed and its annulus A2 driving the other road wheel. In the preferred embodiment the sun-wheel S1 is driven through bevel gearing 8, 9 and a shaft 13. Each epicyclic gear train is stated to be a 3 to 1 train, the annulus having 72 teeth, the sun gear and each of the three planet carriers 24 teeth and the gearing 8, 9 is stated to give a reduction of 1.25 to 1, thus giving an overall reduction of 30 to 1. The bevel gearing 8, 9 may be replaced by worm gearing or gearing of 1 to 1 ratio. The invention is stated to be applicable to steering and driven axles which may incorporate universal joints as in Specification 517,465, [Group XXXI]. The outer gear trains may be interposed between the axles 4, 5 and the inner train. Specification 657,264 also is referred to.
Patent GB-100664-A (GB)
Title: Improvements relating to Piston Packing.
IPC: F16J9/28
Filed: 1916-03-25
Abstract: 100,664. Reavell & Co., and Reavell, W. March 25, 1916. Pistons; piston packing.-Asbestos or other fibrous packing 3, Fig 1, for pistons or plungers cf compressors or pumps &c. is contained in rings 2 of channel section secured in position by a junk ring 4. In order to compress the packing into the rings, each ring, after being wound, is forced into a die 5, Fig. 2, by means of a screw 7.
Patent GB-907878-A (GB)
Title: Improvements in spin stabilised charged shells
IPC: F42B12/12
Filed: 1959-02-09
Abstract: 907,878. Hollow charge projectiles. RHEINMETALL G.m.b.H. Feb. 9, 1959 [Feb. 10, 1958], No. 4527/59. Drawings to Specification. Class 9 (1). A spin-stabilized shell, having a shaped charge, is given a spin opposed to that of the shell casing to prevent reduction of the power of penetration. In some embodiments, the cone-shaped space in the front surface of the charge is lined with material having raised portions arranged to engage the explosive gases so as to oppose the spin of the shell about the longitudinal axis. In a further embodiment, an explosive capsule, having a different rate of detonation from that of the main explosive and having inclined burning surfaces, is inserted inside the main explosive to provide a circumferential impulse.
Patent GB-395288-A (GB)
Title: Improvements in road paving
IPC: E01C5/12
Filed: 1933-02-14
Abstract: The interstices between road paving blocks are filled by a composition prepared by mixing sand with bitumen in a hot state. In an example, the filling material comprises 100 parts of fine sand, 3 to 5 parts of bitumen, and 0,5 to 0,75 parts of calcium hydrate.  The sand is perfectly dry and is heated to between 150 DEG  to 200 DEG C. before mixing with liquid bitumen at the same temperature.  The calcium hydrate is added when the mixture is cold.  The blocks are of a mineral composition impregnated with bitumen, the proportion of bitumen being substantially higher than that in the filling composition.  The blocks preferably comprise lime-sandstone or a mixture of granular material containing lime and silica or silicic acid, moulded and impregnated with bitumen.  The moulding is performed in a hydraulic press and the moulded blocks are subjected for a short time to treatment with steam under pressure, which produces a thin skin of calcium hydrosilicate.
Patent GB-369339-A (GB)
Title: Improvements relating to goods-carrying cycles
IPC: B62K7/00
Filed: 1931-11-14
Abstract: 369,339. Carrier cycles. PERRY, A. T., Ashleigh, Wylde Green, Sutton Coldfield. Nov. 14, 1931, No. 4655. [Class 136 (iii).] A three-wheeled goods-carrying cycle, adapted to be propelled without undue drag on the steering, comprises a driving-wheel a mounted in the rear of the seat-supporting frame, an uncontrolled castor wheel c forming one of the supports for a front frame d adapted to carry a box body or other receptacle for goods, and a controlled steering-wheel b forming the other support of the frame d. The wheel b is controlled from a bicycle-type handle-bar and steering-column through linkage f.
Patent GB-369340-A (GB)
Title: Improvements in or relating to the burning of pulverised fuel
Filed: 1931-02-14
Abstract: 369,340. Feeding fuel to furnaces. ROGERS, W., 55, Upleatham Road, Saltburn-by-the-Sea. Feb. 14, 1931, No. 4738. [Class 51 (i).] A method of burning pulverized coal in a boiler furnace such as is normally used with coal firing and under normal boiler conditions of furnace temperature and furnace space, comprises burning the fuel in two stages at separate stations, first driving off the volatile constituents of the fuel in gas producing means along the length of which said constituents are directly burnt, and then burning the remainder of the fuel at another station. The furnace front 1, Fig. 1, is fitted with a row of three tubes 3, each of which has a portion projecting into the furnace.forming a gas producing device and being provided at the top with a slot 15 along which the gases are directly burnt. Each tube is continuously fed with fuel from a hopper 7 by means of a plunger 9 reciprocated in the outer portion of the tube by a crank 13. After the more volatile constituents have been driven off, the remaining fuel is expelled from the tube on to a grate 19 where combustion is completed. In order that a tube may be withdrawn while the boiler is in operation, the crank 13 of each tube is connected to the driving shaft by a clutch 25. A shutter 21 serves to close the opening left in the furnace wall. In a modification, Fig. 8, the plunger 9 is reciprocated by means of a cam 37 operating through a push rod 35 and a bell-crank lever 31 which is connected to the push rod and to the plunger by pin and slot connections. Reference has been directed by the Comptroller to Specification 104,084*, [Class 51 (i), Furnaces and kilns, Combustion apparatus of].
Patent GB-1317868-A (GB)
Title: Electrostatic accelerometer
IPC: G01P15/18
Filed: 1972-02-01
Abstract: 1317868 Measuring acceleration electrically OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES 1 Feb 1972 [2 Feb 1971] 4744/72 Heading G1N An electrostatic accelerometer comprises an electrically conductive ball which is positioned relative to the interior of the electrically conductive accelerometer casing by electrostatic forces produced from two position control electrodes 5, 8 for each of three orthogonal axes whose internal surfaces 6, 9 facing the ball are coaxial, are portions of a spherical surface and are of equal area the position control electrodes being supplied from an electrostatic circuit for controlling the position of the ball by voltages having equal amplitude and opposed phases, the electrostatic circuit being itself controlled by the signal from a bridge circuit 14-17 including position-detecting electrodes 11, 11<SP>1</SP>. The accelerometer is stated otherwise to be of the kind described in Specification 1134655 (see Division G1).
Patent GB-1438064-A (GB)
Title: Process for the production of berlin blue
IPC: C09C1/22
Filed: 1974-02-01
Abstract: 1438064 Ferric ferrocyanide, Berlin blue DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 1 Feb 1974 [19 Feb 1973] 04783/74 Heading C1A Berlin blue, stated to be ferric ferrocyanide, is made by reacting sodium or calcium ferrocyanide with a ferrous salt at pH below 7 to form FeH 2 [Fe(CN) 6 ], converting tin ferrocyanide into Berlin white by treatment with a potassium salt at a pH below 7, and oxidizing the white to Berlin blue. The ferrous salt may be FeCl 2  or waste pickle liquor. Calcium or sodium ions may be washed out of the precipitated ferrocyanide before treatment with the potassium salt, e.g. KCl or K 2 SO 4 . Conversion to Berlin white may be effected at atmospheric pressure or above, at 60‹ C. to the boiling point. The pH preferably does not exceed 1. Specified oxidants are aqueous solutions of alkali metal chlorate or chromate, or H 2 O 2 . In examples, the Berlin white is oxidized by KClO 3  at 50- 60‹ C. In one embodiment, the calcium ferrocyanide to be reacted with the ferrous salt is formed in situ from a solution of Ca(OH) 2 , HCN and ferrous salt.
Patent GB-544883-A (GB)
Title: A nozzle for a foam fire extinguisher
IPC: B01F5/04
Filed: 1940-03-14
Abstract: 544,883. Making foam. MARCHETTI, A. F. March 14, 1940, No. 4833. Convention date, March 27, 1939. [Class 47 (ii)] Foam is generated by an apparatus comprising a casing 15a arranged as an enlargement on a pipe and housing a vane wheel 12a rotated by 'a jet from the supply pipe B. Air is supplied through an orifice O at one side of the casing and foaming material through a valve-controlled pipe 17a at the other side.