baber/WOPTO huggingface dataset:
Patent GB-712895-A (GB)
Title: Improvements in or relating to the production of protective coatings on ferrous metals
Inventor: BIRD PHILIP LORRAINE
IPC: B05D7/14
Filed: 1950-03-07
Abstract: Protective coatings are formed on ferrous surfaces by treating the metal with phosphoric acid, allowing the acid to dry on the surface and form a phosphate therewith and then coating the surface with a primer paint containing a pigment which reacts with any residual phosphoric acid.  The paint may be red iron oxide 36.5 parts, linseed oil 23 parts, benzole 6 parts, white spirit 30 parts and synthetic resin 4.5 parts, the resin being a mixture of acrylic and phenolformaldehyde types.ALSO:Protective coatings are formed on ferrous surfaces by treating the metal with phosphoric acid, allowing the acid to dry on the surface and form a phosphate therewith, and then coating the surface with a primer paint containing a pigment, e.g. red iron oxide, which reacts with any residual phosphoric acid. A 40-50 per cent. (by weight) solution of acid may be applied by brushing or a 12-18 per cent. (weight/volume) solution by immersion.
Patent GB-1359973-A (GB)
Title: Hydraulic booster with pressure limiter
IPC: B60T13/12
Filed: 1973-01-22
Abstract: 1359973 Hydraulic boosters BENDIX CORP 22 Jan 1973 [10 Feb 1972] 3218/73 Heading F2F An hydraulic booster comprises a housing having an operator-controlled valve slidable from a rest position to admit fluid into a pressure chamber to actuate a boost piston at increasing levels, the pressure being ultimately limited by a second piston 52 defining first and second chambers 66, 72 on either side thereof, the first chamber being vented and the second chamber communicating with the pressure chamber when the pressure attains a predetermined level to urge the second piston towards the valve to prevent movement of the latter with a spring 60 opposing such movement. A lever pivoted at the first piston is moved by a pedal rod in a known manner to move the valve to allow pressure fluid from a steering pump to flow into the pressure chamber, moving the first piston and a rod associated therewith and connected to a master cylinder. Upon the pressure in the pressure chamber attaining a given value, fluid from the chamber via a passage in the valve and a cavity 48 opens a ball valve 82 to flow to the second chamber 72. Alternatively, the valve 82 is connected directly to the pressure chamber by a passage in the housing. Since the first chamber 66 is vented via passages 70, 26 to a reservoir of the associated steering gear, the pressure differential causes the second piston 52 to move a rod 56 and a retainer plate 58 rightwardly to limit movement of the valve. An orifice 86 allows equalization during non- actuation of the second piston 52 and retains the differential during actuation. The booster has a known mechanical connection between the pedal rod and the first piston if a pressure failure occurs.
Patent GB-469941-A (GB)
Title: Improvements in and relating to methods and apparatus for heat interchange in the liquefaction of air and other gases
IPC: F25J3/04
Filed: 1936-02-03
Abstract: 469,941. Separating gases by liquefaction. TRIGGS, W. W. (Gas Industries Co.) Feb. 3, 1936, No. 3238. [Class 8 (ii)] [Also in Group XIII] Air or other gas mixture to be separated and liquefied is passed through a casing 15 provided with internal baffles 18, and is cooled by one of the separated gases, e.g. nitrogen, flowing in several parallel streams through tubes 16, and also by a further gas, e.g. oxygen, flowing in a tube 23 coiled around the casing, The tube coil 23 may be enclosed in a jacket through which a part of the nitrogen or argon may be passed. Alternatively, as shown in Fig. 4, oxygen or other constituent gas may flow through a jacket 14 provided with an internal wire baffle 22. Air under one pressure may be passed through the casing and air under another pressure through the jacket or the coiled outer tube, or other alternative paths for the gases may be used.
Patent GB-390292-A (GB)
Title: Improvements in electro-mechanical power systems
IPC: H02P7/06
Filed: 1932-02-03
Abstract: 390,292. Maintaining defined speeds of motors; field control. FILMER, C., 55, Ashfield Road, Altrincham, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 3, 1932, No. 3250. [Class 38 (iii).] In order to maintain the speed of a motor fed from a variable voltage supply substantially constant, an auxiliary field winding, excited in accordance with the difference in voltage between that of the variable voltage supply and a constant voltage obtained from regulating apparatus, is provided in addition to a main shunt winding. As applied to the power system of a submarine, a motor A fed from a variable voltage battery B has main and auxiliary field windings FM, FA. The winding FM is connected through a shunt motor starter MS across the battery B, and one end of the winding FA is connected through the starter MS to the positive lead of the battery, whilst the other end is connected to the positive lead of a constant voltage lighting circuit 3, 4 energized by a motor reducer set MR from the battery B.
Patent GB-247202-A (GB)
Title: Apparatus for indicating changes of direction for road vehicles
IPC: B60Q1/34
Filed: 1926-02-04
Abstract: 247,202. Fillettaz, E. Feb. 4, 1925, [Convention date]. Road-traffic signals on vehicles; semaphore signals. - In a stopping and turning indicator for road vehicles of the kind in which an indicating arrow or like member 55, Figs. 1 and 3, is supported on a rotatable member 29 mounted in a casing 24 carrying a fixed electric lamp 28, the indicator being actuated by a cable 22 attached to a pulley 4, Fig. 6, operated by a hand-lever 3, the pulley 4 rotates within a fixed casing 5, attached to an electric switch 60, which is actuated by a pressbutton 61 to give an audible signal and is so disposed that it can be operated by the driver's hand simultaneously with the movement of the lever 3. Preferably indicating arrows 55 are mounted both at the front and rear of the vehicle and connected by a common cable 22, 23, which passes round the pulley 4 and is connected thereto by a screw 21. The pulley is formed with a radial projection 9 which, by engaging two stops 10, 11, gives two extreme positions of rest, while a spring-pressed ball 14 adapted to co-operate with two recesses 13 on the pulley gives two intermediate positions, the four corresponding indications given by the arrows being right, forward, left and stop. The cables 22, 23 pass to drums 30 which are formed integral with the rotatable members 29 and contain springs which tend to wind the cables on to the drums. For attaching each cable to its drum the cable is formed with a enlarged head or button 56 bearing against clamping members 57 between which the cable passes, the attachment being effected with the drum partially rotated and by subsequently allowing the drum to turn back under the action of its spring. Apertures 37 are formed in the casing 24 to allow one or both faces of the arrow 55 to be illuminated. Both the switch 60 and casing 5 are attached to a supporting-member 6 by a single stirrup-shaped member 66 embracing the support and fitted with securing-nuts. A switch is provided to control the illumination of the lamps in the indicator casings.
Patent GB-1094655-A (GB)
Title: Improvements in mine roof supports
Inventor: COWLISHAW FRANK
IPC: E21D17/04
Filed: 1964-01-25
Abstract: 1,094,655. Cantilever roof supports. W. E. & F. DOBSON Ltd. Jan. 25, 1965 [Jan. 25, 1964], No. 3285/64. Heading E1E. A mine-roof support bar 1 has a removable tubular, extension secured thereto by siliding engagement with a plug 9, a transverse locking pin 110 being provided as shown. A range of extension bars may be employed of modular length, the support receiving two bars in parallel which are interconnected by a top plate 6, see and 3 (not shown).
Patent GB-328678-A (GB)
Title: Improvements relating to swing horse-hoes
IPC: A01B35/08
Filed: 1929-02-01
Abstract: 328,678. Wright, F. Feb. 1, 1929. Implements with adjustable tool frames; multiple tool implements; adjusting parts of: tools; travelling gear.-The hale bars 9 of a swing horse hoe are pivotally mounted on and movable to and fro along slotted frame members 1 and 2, each of which is constituted by two spaced apart bars rigidly connected together. The shanks 13 of the main shares 14 carry a bar 19 fitted with the shanks 24 of side shapes 27, to which a depth of cut independent of the main shares may be given by adjustment of a pivoted connection 18. The hale bars 9 are mounted on the frame members by a device which obviates piercing of the frame, consisting of a U-shaped clip 11 and an eye-bolt 12 passing around a bolt 10 which is drawn tightly against the frame bars 1, 1. by a nut 12<a>. The wheel and share shanks are mounted by similar devices which permit of lateral and vertical adjustment, the side shares being therefore adjustable as to width of row as well as to depth of cut.
Patent GB-556090-A (GB)
Title: Degasification and clarification of liquid dispersions
IPC: D01F13/02
Filed: 1942-03-16
Abstract: 556,090. Froth flotation. FAIRWEATHER, H. G. C. (Manville Jenckes Corporation). March 16, 1942, No. 3470. [Class 82 (ii)] [Also in Groups III and IV] Liquids containing suspended solids and gaseous impurities are purified by subjecting them to froth flotation, removing, a concentrate rich in a solid constituent, and collecting the liberated obnoxious gas. The apparatus may be a froth flotation machine of mechanical or pneumatic type with ventilating means for collecting the gas. A partial vacuum may be applied. The Figure shows a Fagergren apparatus having an agitator comprising a rotor 9 and stator 8, skimming devices 3, a hood 6 and vent pipe 7.
Patent GB-414654-A (GB)
Title: An improved hydraulically controlled variable-speed gear
IPC: F16D67/00
Filed: 1933-02-04
Abstract: 414,654. Hydromechanical variablespeed gearing. YOXALL, J., York House, Deganwy, Carnarvonshire. Feb. 4, 1933, No. 3479. [Class 80 (ii).] Variable -speed gearing comprises a planetary train controlled by a screw propeller. The driving-element is a flywheel 12, Fig. 2, which carries stepped planet gears 7, 6, 5 and also a casing 17 with vanes 2 fixed therein at an angle, as shown ir Fig. 4. The gears 7 mesh with a sun gear 18 fast on a driven shaft 10 The gears 5 mesh with a sun gear 3 fast on the loose boss of the screw propeller A. In the form shown, the propeller blades 1 are of inclination which is adjustable through a rack 24 and sliding collar 13. At low speed of the casing 17, there is no drive and the propeller A turns backwards. As power is applied to accelerate the flywheel 12, the propeller meets more resistance as fluid is passing the blades 1 in the form of a wave between pockets in the casing 17. The driven shaft 10 therefore accelerates in the forward direction and the speed is controlled by sliding the collar 13. The planets 6 mesh with a sun gear 9 fast on a sleeve 19 which carries a splined brake cone 14. When the collar 13 is slid to the extreme right, after feathering the blades 1 it strikes the cone 14 and carries the latter into engagement with a fixed cone 15 to effect a mechanical reversed drive of the shaft 10. In a modification, the propeller blades are of fixed inclination and there is a slipping friction clutch between the propeller and the sun gear corresponding to the gear 3 of Fig. 2.
Patent GB-520365-A (GB)
Title: Process for plating metals
IPC: B23K35/00
Filed: 1939-02-02
Abstract: 520,365. Making compound plates &c. MILLER, E. Feb. 2, 1939, No. 3523. [Classes 83 (ii) and 83 (iv)] Soldering.-In plating a ferrous metal body with copper, nickel, aluminium or their alloys or with chromium-nickel steel, the ferrous body is coated galvanically first with nickel and then with copper or copper alloy and the plating sheet, if not rich in copper is galvanically coated with copper or copper alloy and the parts are then superposed and united by heat and pressure. The composite body may be subjected in hot or cold state to rolling or drawing without causing the detachment of the plating sheet. A pack of such sheets may be treated with plating sheets on one or both sides of the ferrous body. In plating an iron body with a chromiumnickel steel sheet, the parts are first coated with nickel and then with copper and the superposed parts are heated at about 1000‹C. for 2-3 hours under a pressure of 1 kg. per sq. mm., so as to form a diffusion alloy between the copper and nickel without impairing the properties of the steel sheet. In plating an iron body with aluminium the iron body has a first galvanic coating of nickel and a second coating of copper and tin and the aluminium has a coating of copper and tin. In plating an iron body with copper, nickel &c. the iron body has a first coating of nickel and a second coating of brass, red brass &c. and the copper &c. sheet a coating of alloys of copper and tin or copper and zinc. If the plating sheet has a high percentage of copper it may remain uncoated. When there is considerable difference in ductility between the iron body and the plating sheet, heavy coatings are applied. Thus an iron or steel plate 30 mm. thick plated with a chromiumnickel steel sheet 3 mm. thick has coatings together equal to about one-third of the thickness. of the plating sheet. In such cases coatings of normal thickness may be first applied and an intermediate sheet of copper-zinc alloy or silver-copper alloy inserted. If subsequent annealing is required the intermediate sheet should have a melting point between 1000- 1040‹C.
Patent GB-1376081-A (GB)
Title: Data coding
IPC: H04L25/49
Filed: 1972-01-25
Abstract: 1376081 Data transmission systems TELEFONAKTIEBOLAGET L M ERICSSON 25 Jan 1972 [26 Jan 1971] 3542/72 Heading H4P In a binary data transmission system, bits of one significance are sent by the code word 0101 or 1010 and bits of the other significance as 0011 or 1100, for each significance words alternate every pair of bits of that significance irrespective of whether the bits of the pair are consecutive or not. The coding method is for use with line transmission systems to provide a zero mean D.C. level also enables the mark and space bits at the receiving end to be not confused by an arbitrary change in line polarity. In the general arrangement of Fig. 7 a decoder KK codes the mark and space bits E, N as above and service bits Y as alternately 0101 and 1010 and sends the signal via amplifier filter and transformer SF over a transmission line to a receiver where it passes through a similar transformer filter and amplifier MF to a pulse regenerative circuit PF2. Timing signals are generated for the receiver by flank detector FD which excites a tank circuit TK2 to the code word bit frequency f t  (four times the marked space bit frequency fd). Dividers FM1, FM2, generate clock signals at f t/2  and f t/4  which are fed back to the encoder KK and also to decoders D1, D2 which combine these timing signals in exclusive-OR fashion with the received data signal, D1 thereby recognizing by a sequence of 1111 or 0000 the code words 0101, and 1010, and similarly decoder D2 recognizes the code words 0011, and 1100. As signals A and B on the one hand and A<SP>1</SP> and B<SP>1</SP> on the other hand are mutually exclusive only the output of the decoder D1 is fed to a further decoder DK which delivers the mark, space and service signal E, N and Y. To maintain the correct phase of the clock signals from the tank circuit TK2, the combined signals from decoders D1, and D2 via an OR gate EK excite a further tank circuit TK1 whose output after pulse shaping is compared with the output of divider FM2 and the difference integrated and used to control a phase shift device PF1.
Patent GB-175279-A (GB)
Title: Improvements in and relating to alternating current generators
IPC: H02K19/24
Filed: 1922-02-08
Abstract: 175,279. Siemens & Halske Akt.-Ges., (Assignees of Heintsze, C.). Feb. 8, 1921, [Convention date]. Inductor-alternators.-In an inductor-alternator for producing an asymmetric current wave, as shown in Fig. 1, for R÷ntgen tubes, dustremoving plants, and other purposes, in which the inducing and induced windings 7, 8, Fig. 2, are wound on poles 2, 1 having a common iron magnetic return path, the pole-shoes of the inducing poles are longer, by at least one half, than those of the induced poles. The iron parts 4 of the rotor are made with purely cylindrical outer surfaces without any hollows or grooves to ensure that the flat or negative part of the wave is uniform. To avoid variations in the amount of. magnetic flux which would result from the magnetic path being alternately through the wide and narrow poles, the air-gaps under the respective poles are made long and short, their average lengths being in proportion to the widths of the pole-shoes. In an alternative arrangement, the inducing and induced pole-shoes are respectively narrow and wide.
Patent GB-1458125-A (GB)
Title: Pneumatic tool
IPC: B26D5/04
Filed: 1974-01-28
Abstract: 1458125 Stripping conductors AMP Inc 28 Jan 1974 [2 Feb 1973] 03772/74 Heading H2C A pneumatic tool 10, e.g. a three conductor cable cutting head as described in Specification 1,408,071, comprises a working head 16 operatively connected to a first piston and cylinder assembly 14 consisting of a number of pistons 56, 72, 74 in cylinders 54, 68 and 70 respectively, on a common hollow piston rod 76, a second piston and cylinder assembly 24 and 22, arranged in tandem with and engageable with 14, and valve means 12 to connect pneumatic pressure fluid to open, partly close and close in a working stroke the working head 16. Fig. 1 shows the tool in its neutral position to engage the workpiece, Fig. 2 (not shown), its retracted position to insert the workpiece and Fig. 3 its advanced position to complete the particular manufacturing operation. A control rod 36, Fig. 4, is secured to a vertically extending shaft 44 which can be rotated by a toggle control trigger 46, Fig. 1, secured to the upper end of the shaft in the working head 16. The trigger is spring-biased to a neutral position (e.g. to engage a three conductor cable prior to slitting it) as shown in Fig. 1. When the toggle is rotated in a counterclockwise direction, Fig. 2 (not shown) the control rod 36 rotates to engage the rear surface 40 of a valve 32 allowing air to enter passageways 48, 60, Fig. 1, and cylinder 54 causing the retraction of piston 56 and cutting head 82 for insertion of the workpiece. The workpiece is then engaged by returning the tool to its neutral position. The trigger is then rotated clockwise Figs. 3 and 6 (not shown) so that the control rod 36 unseats the right valve 32 allowing air to enter passageway 50 and act on the underside of piston 56. The air also enters axial passageway 77, Fig. 1, and passes via ports 92, 94 into cylinders 68 and 70 to act on pistons 72 and 74 thus causing a magnified force to act on the head for the particular manufacturing operation. The residual air above pistons 56 is expelled via 61, 60, 48 and exhaust conduit 47 while air above pistons 72 and 74 is exhausted via radial ports 96 and 98.
Patent GB-417909-A (GB)
Title: Improvements in absorption refrigerating machines
IPC: F25B15/12
Filed: 1934-02-06
Abstract: 417,909. Refrigerating. MAIURI REFRIGERATION PATENTS, Ltd., Bush House, Aldwych, London. Feb. 6, 1934, No. 3857. Convention date, June 9, 1933. [Class 29.] Absorption machines and systems.-The weak liquor is distributed over the cooling coil a of the absorber by a wick f preferably formed of two superposed gauze sheets doubled over to form a syphon. Any desired number of coils and wicks or syphons may be provided in a single absorber. Further, similar liquid distributing means may be employed in the evaporators and generators of absorption refrigerating machines. Fig. 3 shows the invention applied to the absorber A, reabsorber B, generator C, and evaporator D of a reabsorption machine employed, e.g. for cooling brine flowing through the evaporator coil d and heated, e.g. by the flow of hot water from the economiser of a boiler plant through the generator coil c. Liquid is circulated between the vessels by pumps P, P<1> which may be replaced by a common pump. Further, the single coils in each of the vessels may be replaced by two separate superposed coils through the upper of which is circulated the liquid that has already passed through the vessel. The pressures in the vessels A, D and C, B may be equalised by inert gas. Dichlorethylene and ethyl chloride may be employed as refrigerants and paraffin and fusel oil as the corresponding absorbents.
Patent GB-1494969-A (GB)
Title: Machine for polishing rods or wires
IPC: B24B5/38
Filed: 1976-01-30
Abstract: 1494969 Polishing SOC METALLURGIQUE DE REVIGNY 30 Jan 1976 [13 Feb 1975] 03876/76 Heading B3D A machine for polishing a rod or wire 7 of metal comprises a tubular element 4 which is rotatably mounted in a fixed frame 1 and through which the rod to be polished extends coaxially in a slidable and non-rotary manner, a pressure-applying device actuated by centrifugal force and pivoted to the tubular element, movable polishing means 13 pivoted to the device to be radially applicable against the rod, by the device, and means for driving the element in rotation. The frame has four lateral walls and a detachable hood 2 and two of the opposite walls house bearings 3 for the tubular element 4 which is rotatable by a belt engaging a pulley 6 and through which the rod 7 to be polished is fed by rollers 8, 9. An enlarged cylindrical portion 10 of the element has, as described, three radial slots in which are slidable members 12 having polished pads or shoes 13. The members are connected by pivots 14 to links 15 pivotally mounted on pins 16 fixed to the portion 10. Slidable weights 17 are adjustably mounted on the links which are also connected by pivots 19 to one end of second links 20, the opposite ends of which are connected pivotably to a roller axially movable along splines 22 on the tubular element against the force of a spring 23 bearing against an adjustable abutment 24. When the tubular element is rotated, centrifugal force acts on the weights 17 to pivot the links 15 so that the polishing pads 13 press against the rod as it is fed through the machine, the pressure of the pads against the rods being determined by the rotational speed of the tubular element, the position of the weights, and the force exerted by the spring as set by the position of the abutment 24.
Patent GB-668678-A (GB)
Title: A method for fabricating and casting pressure medium guide-devices for centrifugal pumps or blowers
IPC: F04D29/44
Filed: 1950-02-15
Abstract: 668,678. Centrifugal pumps and blowers. BUCHI, A. Feb. 15, 1950. [Feb. 17, 1949] No. 3925/50. Class 110(i). [Also in Group XXII] In a method of making guide-devices for centrifugal pumps and blowers such as are described in Specification 627,072, a set of individual guide-duct inserts are made up from smooth sheet material, placed in the appropriate positions in moulds and the housing for the guide ducts is cast around them. The method may be applied to making a pump or blower of the kind shown in Figs. 1 and 3, comprising a two-part housing 1, 2 containing the ducts 4 of the guide device and a central space for the impeller. The ducts comprise liners 5 made from sheet metal and accurately positioned in the moulds while the housing parts are cast around them. The liner inserts are made to protrude beyond the edge of the mould to prevent molten metal flowing in and the upstanding ends 6 are removed in a finishing operation. A form of guide housing divided transversely to the axis is shown in Fig. 7 and a section of one-half of the housing in Fig. 8. The inserts may be plated with tin or copper on the outside to secure better adhesion to the cast housing.