baber/WOPTO huggingface dataset:
Patent GB-713572-A (GB)
Title: Improvements in or relating to capacitors
Inventor: EVANS WILLIAM ERIC RAYMOND
IPC: H01B3/40
Filed: 1952-03-17
Abstract: 713,572. Condensers. STANDARD TELEPHONES & CABLES, Ltd. March 13, 1953, [March 17, 1952.] No. 6852/52. Addition to 693,062. Class 37. [Also in Group VIII] A condenser sealed in a container by a thermosetting mixture of a resin and a hardener as described in the parent Specification is first impregnated with a plasticizer for the resin or with a thermosetting mixture of a resin, a hardener and a plasticizer for the resin. The impregnant is cured at the same time as the sealing mixture. Pentochlor dipheny may be used as a plasticizer with ethoxylene resins.
Patent GB-462931-A (GB)
Title: Improvements in or relating to geysers
IPC: F24H1/10
Filed: 1936-03-07
Abstract: 462,931. Electric immersion heaters. GEE, W. C., MERCER, W. E., and TULLY, E. E. March 7, 1936, No. 6889. [Class 39 (iii)] [Also in Group XIII] In a water heater wherein the liquid flows in a sinuous path through pipes enclosing immersion heaters, the thickness of the annular film of water lies between <13>/64 and <5>/64 of an inch. The pipes 14 are connected in series by headers 10, 11, and the lower header is detachable to facilitate the insertion of U-shaped resistance elements 20 in each pair of pipes. The water supply cock 24 is connected to a switch 25 controlling the flow of current, and in order that the heaters cannot operate when the water is turned off a toothed sector is fixed on the spindle of the switch and a gear wheel 27 on the spindle of the cock ; the number of heaters in circuit at any time depends on the position of the cock. In a modification, the electric heating is replaced by hot gases. Specifications 439,601 and 462,930 are referred to.
Patent GB-853866-A (GB)
Title: Improvements in spiked hand tools e.g. for pinning down clothing prior to ironing orpressing
IPC: D06C15/10
Filed: 1956-03-06
Abstract: 853,866. Work clamps. HORSBURGH, K. Dec. 18, 1956 [March 6, 1956], No. 6935/56. Class 31 (1). [Also in Group XXV] A spiked strip, e.g. for holding down patterns on dress or upholstery material for cutting out, comprises a handle 10 of synthetic resin with a single row of spaced metal pins 11 projecting from one edge and embedded therein during moulding.
Patent GB-839516-A (GB)
Title: A process for the durable creasing or other permanent setting of woollen or worsted fabrics or other materials containing wool or other keratin fibres
IPC: D06M13/252
Filed: 1958-03-04
Abstract: A permanent set is imparted to fabrics consisting of or containing wool or other keratin fibre by heating the fabric at a temperature of at least 212 DEG  F. in the presence of an aqueous solution of ammonium thioglycollate.  The process may be applied to the creasing of trousers, pleating skirts, "setting" fabrics in a flat condition, including knitted fabrics, "setting" twist or extension in yarn prior to weaving, and embossing fabrics. The solution may be applied locally or all over, e.g. by spraying, and the heating, which may be accompanied by the application of pressure, may be by steaming.  The treating solution may contain ethylene diamine tetracetic acid. Specification 690,063 is referred to.
Patent GB-325130-A (GB)
Title: Improvements in electrical adapters of the multiple socket type
IPC: H01R31/02
Filed: 1929-03-04
Abstract: 325,130. Lundberg & Sons, Ltd., A. P., Lundberg, G. C., Lundberg, P. A., and Pegg, G. March 4, 1929. Plug couplings. - A wall plug adapter permitting the coupling of two or more circuits comprises socket members each having an integral lateral lug by which connection is made with the corresponding pin. The body 11 may be in one or two parts and duplex sockets 13 extend through holes 12 and are cast, pressed, or otherwise formed with lateral projecting lugs 14 into which screw the shanks of the pins 17. Where more than two circuits are to be connected the centre part 19 of each duplex socket 12 is flattened so. that additional sockets 20 can be screwed in.
Patent GB-515424-A (GB)
Title: Improvements in or relating to controls for aeroplanes
IPC: B64C3/54
Filed: 1938-03-05
Abstract: 515,424. Fluid - pressure servomotor - control systems. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. March 5, 1938, No. 6973. [Class 135] [Also in Group XXXIII] A servomotor - control system for operating flaps or other surfaces for adjusting the lift or drag on the wings of aeroplanes with a short wing span and single engines of high power includes means operative during take - off to increase the effect of the flap on one wing relatively to the flap on the other wing in such sense as to oppose the reactive torque of the engine and to reduce such difference as the air or engine speed rises. In the arrangement shown adapted for use in an aeroplane with a lefthanded tractor air-screw the port flap 10 is operated by an oscillating cylinder 13 pivoted to the aircraft at 14 while the starboard flap 11 is actuated by a cylinder 15 pivoted at 16 to a bell-crank lever 17, flexible supply and exhaust conduits 46, 47 being fitted to permit bodily movement of the cylinder. The supply and exhaust to and from both the cylinders 13, 15 is controlled by a manually operable valve 24. The bell-crank lever 17 turns on a stationary pivot 18 and is operated by a cylinder under the control of a valve 29 fitted with a moving seat follow-up device actuated by a bell-crank lever 35 and links 34. The valve 29 is operated by an arm 30 coupled by a link 37 with a three-armed. lever 41 one arm of which is loaded by a spring 44 while a second arm carries a vane exposed to the external air-stream at a point displaced from the region of the propeller blast. When the lever 41 is deflected to its maximum extent a bevelled collar on a spindle 50 having a pin and slot connection with the third arm on the lever snaps past a spring-loaded locking catch 54. The catch is released to reset the device by a pilot-actuated rod 61 and bell-crank 59 having a pin 57 engaging an enlarged hole in the catch. The air-pressure vane 40 may be replaced by a device sensitive to engine speed. According to the Provisional Specification a toggle linkage controlled by a speed governor or wind vane may be arranged between a controllable power device and one or both of the wing flaps. The toggle link system or other differential control may be arranged in the connection between the pilot's control lever and separate control valves for the power devices operating the flaps. In another arrangement one flap is yieldingly biassed to give a greater deflection than the other at slow speeds, this excess being gradually reduced by increasing air pressure on the flap as the speed increases.
Patent GB-470693-A (GB)
Title: Straw braid sewing machine
IPC: D05B23/00
Filed: 1937-03-10
Abstract: 470,693. Sewing machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) March 10, 1937, No. 7011. [Class 112] The reciprocating needle of a sewing-machine for sewing straw braid, is provided with a stroke-varying element which can be secured in its adjusted position, and the support for the loop-taker co-operating with the needle is adjusted by means yieldingly connected to the needle-stroke varying element. The main shaft 5 in the bed 1 is connected by the crank 6 and pitman 7 to the ball 8 at the end of rod 9 which slides in the fulcrum guide sleeve 10 with projecting studs journalled in slide blocks 13 working in guideways in the bed. The forward end of the rod 9 is connected by a pivot pin 16 to the lower end of an elbow shaped arm 17 rigid with the needle bar 18 which carries the hook needle 20 and eye pointed needle 21. One of the slide blocks 13 is connected by a link 26 to an arm 27 which can be adjusted by a hand operated lever 33 to vary the position of the fulcrum 10 and thereby vary the upper limit of the needle stroke to suit the thickness of the work. The lever 33 is held in its adjusted position by a spring-pressed locking pin entering one of the apertures 35. The loopers 37, 38 are mounted on the levers 40, 42 which operate as described in Specification 451,567. Mechanism is provided so that the operation of the lever 33 determines the operative elevation of the slide 39 carrying the loopers. A weak spring restores the slide 39 to its normal sewing position after its displacement by the presser foot being raised for the insertion of work. The bar 63 with the presser foot 64 has an arm 67 carrying a roller 68 engaged by the cam lever 69. The hole 71 in the lug 70 on the arm 67 receives the end of a cantilever spring 72 which can be adjusted by the screw 76. The presser foot has a small movement independent of the slide 39 but a shoulder 77 engages and lifts the slide when the cam lever 69 is operated. Specification 160,920, [Class 112], also is referred to.
Patent GB-1039852-A (GB)
Title: Improvements relating to circuit arrangements including electric stepping motors
IPC: H02P8/02
Filed: 1965-02-18
Abstract: 1,039,852. Stepping-motor circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 18, 1965 [Feb. 21, 1964; Nov. 27, 1964], No. 7066/65. Heading G4H. A stepping motor has a first set of poles on the stator and a second set of poles on the armature, one set being permanently magnetized and the other set being energized by a winding which is supplied with pairs of pulses of alternate polarity through a capacitor and a change-over switch (push-button or transistor) so that for each actuation of the switch, the armature moves two steps.
Patent GB-213264-A (GB)
Title: Improved method of and means for phonographic recording
IPC: H04S1/00
Filed: 1924-03-19
Abstract: 213,264. Roux, B. March 21, 1923, [Convention date]. Transmitting apparatus.-Electrical apparatus for recording sound, and for use in wireless telephony, comprises a number of microphones M<1> - - M<4> placed near separate sources of sound S<1> - - S<4> and connected to a single rceording or receiving device A, a variable resistance or amplifier R<1> - - R<4> inserted in the circuit of each microphone, a switchboard T for controlling the amplifiers or resistances, and a telephone B connected in the circuit of the recorder or receiver A to enable the operator to judge the total effect.
Patent GB-1000582-A (GB)
Title: A c. hoist control system
IPC: B66C13/26
Filed: 1963-02-21
Abstract: 1,000,582. Control of A.C. motors. I-T-E CIRCUIT BREAKER CO. Feb. 21, 1963 [July 25, 1962], No. 7110/63. Heading H2J. During hoisting operation, an induction motor 10 is operated with 39% fixed slip by opening contactors 16, 17 and closing contactors 18, 19 associated with rotor circuit resistors 13, 14, 15. A range of torque characteristics is obtained by varying the applied stator voltage, so providing performance similar to that of series D.C. motors. During lowering operation, the stator voltage is reduced by means of auto transformer 82 and resistors 26, 27, direct braking current being injected into the stator winding simultaneously with the application of reduced threephase current. The braking current is derived through regulator 68, transformer 64, and rectifier 62. A resistor 61 is connected across the rectifier and is connected in series with saturable reactor 60 which is periodically saturated to pass current-pulses to the stator winding. A rated load is lowered by supplying the motor with direct braking current only. Otherwise, both alternating and direct current is supplied to the stator. An empty hook may be positively driven downwardly. A master controller having five hoist positions and five lowering positions is provided, a mechanical brake being applied to the motor at certain control points, Fig. 4 (not shown). The motor is accelerated in the hoisting direction by the stepped reduction of resistors in each phase of the stator supply.
Patent GB-741952-A (GB)
Title: Improvements to flow boxes, with projection-type slices, for paper-making machines
Inventor: DUNCAN GEORGE FALCONER
IPC: D21F1/02
Filed: 1953-03-16
Abstract: 741,952. Flow-boxes of paper-making machines. BERTRAMS, Ltd. Jan. 19, 1954 [March 16, 1953], No. 7145/53. Class 96. The slice assembly of a Fourdrinier papermaking machine is adjustable in relation to the body of the flow-box, e.g. by slackening a series of grub-screws 20 which pass through slots 21 in a flange 14 of the flow-box casing and which screw into a bar 17 to which is secured the upper lip 18 of a projection slice ; locking- screws and set-screws at each side of the box are also adjusted or slackened and re-tightened to move the slice assembly horizontally, the base-plate 15 thereof sliding on a rebated portion of the lower plate of the flow-box. The width of the slice outlet is controlled by rods 29 &c.
Patent GB-416089-A (GB)
Title: Improvements relating to brush gear for dynamo electric machines
IPC: H02K23/18
Filed: 1933-03-10
Abstract: 416,089. Regulating dynamos. STONE & CO., Ltd., J., Deptford, London, and VIDAL, J. F. B., 48, Woodcrest Road, Purley, Surrey. March 10, 1933, No. 7315. [Class 35.] Reducing flexing of leads.-In a machine with rockable brushes connected to fixed terminals by flexible leads, a fixed anchorage with a curved surface on which the lead can wrap is arranged near the centre of and outside the arc of movement of the movable anchoring member of the lead. In the form shown, the fixed anchorage 16 to which the lead 15 is attached is midway between the anchorage 14 where shown, and the extreme position of this anchorage, represented by broken lines. The anchorages 16 are mounted on the end-bracket of the machine and are axially displaced from the main brushes 7 and auxiliary brushes 8 which are also relatively displaced in the axial direction Perforated strips of insulating material may be threaded on the lead 15, if of braid, to prevent contact with adjacent parts or where flexible cords 15<1> are used as conductors, they may be passed through slotted spacers 26', Fig. 8.
Patent GB-180106-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B1/04
Filed: 1921-03-08
Abstract: 180,106. Scott, G. M. March 8, 1921. Cylinders, construction of.-The flame of combustion may be observed through a tube 1, screwed at one end into the cylinder head, fitted with a window, such as plate glass, or a lens, at the other end and having an upwardly extending branch 7 which carries the sparking plug in such a manner that the terminals are not visible through the window 3.
Patent GB-1091431-A (GB)
Title: Improvements in or relating to a pneumatic motor of the reciprocable type
Inventor: KIRK COLIN JOHN
IPC: F01B17/02
Filed: 1965-02-20
Abstract: 1,091,431. Power hammers. MARTONAIR Ltd. Feb. 14, 1966 [Feb. 20, 1965], No. 7422/65. Heading B3H. A pneumatically operated reciprocating motor which may be used as a power hammer, comprises a piston 10 having a cylindrical extension 42 adapted to seal within a bore 44 in a cylinder head 14 and provide two separate chambers 16, 49; one of these chambers 16 is supplied with pressure air to initiate the working stroke whilst the other chamber acts to produce a resistance to movement of the piston until the extension moves out of the seal and permits the pressure in the chamber 16 to act on the full area of the piston thereby producing quick acceleration. The piston-rod 25 passes through a seal 30 in a cylinder cover 15 and is connected at 31 to the hammer stem. Bottom chamber 16 is closed by another cover 17. Both covers 15, 17 are of square section and are coupled together at their corners by tie-rods 19. To initiate the stroke, pressure air from line 36 is supplied through valve 35 and duct 40 to chamber 16 where it acts on the end 48 of extension 42. This produces a slow movement of the piston which is resisted by a reduction of pressure in chamber 49 sealed by one-way valve 52. When extension 42 moves out of seal 45 the chambers 16, 49 are connected and produce the hammer blow. Upper chamber 12 is meanwhile connected to exhaust port 37 but the slight build-up of pressure therein as piston 10 reaches cover 15, acts to cushion the end of the working stroke. Valve 35 is then reversed whereby pressure air enters chamber 12 to retract the piston whilst chamber 16 is connected to exhaust 41. When extension 42 re-engages the seal 45 pressure builds-up in chamber 49 causing a consequent pressure rise in chamber 12 which acts through duct 57 to open valve 53 thereby connecting chamber 49 to exhaust 56. Valve 53 may, however, be omitted. In another embodiment, Fig. 2 (not shown), applied to a light duty motor for operating a loom shuttle, the chamber (16) is formed as an annular chamber surrounding the main cylinder (13) and extension (42) abuts a closed end (48). The piston (10) and piston-rod (25) are hollow. Pressure is supplied initially to chamber (49). In various modifications, Figs. 3-8 (not shown), the chambers (16), (49) may be interconnected together or to atmosphere by passages containing spring-loaded ball or piston type check valves for reducing the vacuum restraint upon initial movement of the piston. A compression coil spring may be provided in chamber 12 to act on the piston. The control valve 35 may be actuated automatically by pressure signals in ducts 50, 51.
Patent GB-249547-A (GB)
Title: Improved means for charging furnaces or the like
IPC: C01B17/54
Filed: 1926-03-18
Abstract: 249,547. Ducatel, P. A. A. March 20, 1925, [Convention date]. Charging. - In a furnace for melting sulphur or like easily fusible material, means are provided for preventing entry of air or escape of gas during charging. As shown, the hopper 2, having a closely fitting cover 9, is arranged partly within the furnace 1 and communicates with a shoot 4 delivering into a siphon device 6, 7, 8. The charge in the lower part of the hopper is melted by contact with the heated wall 3 and the molten material fills the container 6 before enterring the furnacethrough the pipe 7.
Patent GB-727627-A (GB)
Title: Improvements in or relating to actuating means for internal shoe-drum brakes
Inventor: HUGHES HERBERT WILLIAM SAMUEL
IPC: F16D65/22
Filed: 1953-03-19
Abstract: 727,627. Internal shoe-drum brakes. GIRLING, Ltd. March 18, 1954 [March 19, 1953], No. 7579/53. Class 103 (1). In an actuating mechanism for an internal shoe drum brake in which the actuated ends of the shoes are separated by a single-ended hydraulic cylinder incorporated in a housing having a limited floating movement on the back plate in the direction of movement of the shoe ends, one shoe engages the closed end of the cylinder while the second shoe is engaged by the piston of the hydraulic cylinder through an interposed portion of a lever pivotally mounted in the housing and adapted to be actuated by a manually operated lever pivoting about the same axis. In the embodiment of the invention shown applied to the rear wheel brakes of a motor vehicle, two arcuate brake shoes 10, 11 are mounted on a stationary back plate 13; the upper ends of the shoes being adapted for separation hydraulically by means of a single-ended cylinder 14, the piston 22 of which acts against an arm 30 of a bell crank lever pivotally mounted on a pin 31 in the housing 15 to engage the web 33 of the shoe 10 and move the shoe outwardly into engagement with the drum. The reaction on the housing 15 moves the housing in the opposite direction to move the shoe 11 outwardly. The lower ends of the shoes have a rocking and sliding engagement with an adjuster (not shown). Alternatively, the brake may be actuated mechanically by means of the hand lever which is connected by a rod or cable to an operating lever 37 which extends through the back plate 13 and is pivoted also about the pivot pin 31 so that a lug 36 rocks the bell crank lever about the pivot pin 31 and the arm 30 of the bell crank lever urges the shoe 10 outwardly into engagement with the drum. The reaction on the housing 15 moves the housing bodily in the opposite direction so that the shoe 11 is also moved outwardly with equal force. Whether the brake is mechanically or hydraulically actuated, one form of operation does not affect the efficiency of the other. Rubber boots 39 and 40 are provided to prevent entry of dust and water and a hardened bearing block 21 is provided in the inner end of the slotted closed end of the cylinder 14 for engagement with the web 20 of the shoe 11. An alternative arrangement of levers is described and illustrated in the Specification.
Patent GB-666269-A (GB)
Title: Resin forming-composition and resins formed therefrom
IPC: C08F18/08
Filed: 1949-03-21
Abstract: A composition capable of giving, upon curing to an infusible resin, an adhesive bond to a metal from lead to magnesium in the electrochemical series, comprises a polycarboxylic acid ester of an olefinic monohydric alcohol and 0.1 to 10 per cent based on the amount of ester of an alpha, beta-olefinically unsaturated dicarboxylic acid or an anhydride thereof.  Instead of the ester there may be employed a mixture of monomer ester and monomer-soluble polymer thereof, with or without organic solvents or limited proportions of non-solvents to reduce viscosity. Curing is effected by heating, with or without a peroxy catalyst. The ester may be a vinyl, allyl, crotyl, methallyl, tiglyl, gellyl, 1,3-butadienyl-2, propenyl, isopropenyl, pentadienyl, oleyl, geranyl, linoleyl, linolenyl, or elaidyl ester of oxalic, malonic, succinic, adipic, sebacic, maleic, fumaric, phthalic, terephthalic, itaconic, tricarballylic or citric acid, the preferred ester being diallyl phthalate.  Mixtures of esters or mixed esters, such as allyl vinyl phthalate, allyl methyl maleate and allyl methallyl succinate may also be employed.  The acid or anhydride may be maleic, fumaric, glutaconic, citraconic, itaconic, methylene malonic, ethylidene malonic, dihydromuconic, ethylmesaconic, isobutylmesaconic or muconic acid, or one of the corresponding anhydrides which is capable of existence.  The polymerization catalyst may be benzoyl peroxide, acetyl peroxide, benzoyl acetyl peroxide, tertiary butyl perbenzoate, lauroyl peroxide, dibutyryl peroxide, succinyl peroxide, tertiary butyl hydroperoxide, ditertiary butyl peroxide, peracetic acid or perphthalic acid.
Patent GB-506209-A (GB)
Title: Improvements relating to exhaust mufflers
IPC: F01N1/10
Filed: 1938-03-11
Abstract: 506,209. Exhaust-silencers. BURGESS LABORATORIES, Inc., C. F. March 11, 1938, Nos. 7598 and 7599. Convention dates, March 11, 1937 and July 29, 1937. [Class 7 (ii)] A silencer comprises a casing 10 with inlet 15 and outlet 16 leading to and from end chambers 19 and 20 formed by partitions 17 and 18, a perforated tube , 22 being' arranged in line with the inlet, with its open end opposite the inlet and closed at the other end, and a second perforated tube 23 being arranged in line with the outlet and open at both ends. The partition 18 may be formed with perforations 24, and the closed end of the tube 22 may also have a few small openings. A second closed-ended tube. 22 may be arranged either in parallel or in series with the first. In the parallel type, one tube 22 is in line with the inlet, while the other is angularly spaced therefrom and from the tube 23, and opens into an additional chamber formed by a further partition spaced to the right of that which holds the open end of the first tube 22. Fig. 6 shows a silencer with two tubes 53, 58 arranged in series, each formed with slots 55, 59 at the inlet end and closed at the other end, with perforations at 57, 64. Outlet occurs through an open-ended perforated tube 62. Packing of steel wool or glass silk may be provided at 63.