baber/WOPTO huggingface dataset:
Patent GB-995293-A (GB)
Title: An improved apparatus for elevating the shot used in cleaning the tubes of boilers, economisers, and other heat exchangers
IPC: F28G1/12
Filed: 1962-10-19
Abstract: 995,293. Cleaning heat-exchangers. PARKER MITCHELL ENGINEERING CO. Ltd., and W. J. PARKER. Oct. 17, 1963 [Oct. 19, 1962] No. 39594/62. Heading F2N. Apparatus for cleaning the tubes of, e.g. heat-exchangers, by the impingement of shot comprises a shot collecting receptacle, a pneumatic valve controlling the inlet to said receptacle, an elevated shot receiving receptacle from which shot is discharged to the heat exchanger, this receptacle having a pneumatic discharge valve, a pipe between the foot of the shot collecting receptacle and the elevated shot receiving receptacle, the two ends of the pipe being curved, and a compressed air receiver so connected and controlled that shot which has passed through the heat-exchanger is forced from the shot collecting receptacle through the pipe to the elevated shot collecting receptacle whence it drops again into the heat-exchanger. The sequence of operations is controlled by a rotating electrical contact which completes circuits to a timer valve 23 in the air line 21, a timer valve 30, in an air line 26 from the air line 21 to a valve 25 which is operated pneumatically to control the passage of shot from the receptacle 24, and to an electromagnetic device, between the hopper 28 and the receptacle 10, which, when energized, magnetizes the shot and interrupts its flow. Periodically the timer valve 23 supplies compressed air to the receptacle 10, thus propelling shot in the receptacle through a pipe-line 12 into the elevated receptacle 24. Also the timer valve 23 supplies compressed air to a cylinder 19, causing its piston rod 18 to rise and close a valve 15, stopping the admission of shot into the receptacle 10. Before the raising of the valve 15 the shot is magnetized to prevent the valve being jammed. Immediately the shot has been elevated to the receptacle 24 the time valve 23 operates to permit the valve member 15 to drop and to cut off the passage of compressed air to the receptacle 10. The valve 25 is operated, by the timer valve 30, to permit shot to pass from the receptacle 24 into the heat exchanger 9, which is cleaned by the falling shot. The shot, after passing through the heat exchanger, lands on a vibrator 27 by which dirt is separated from the shot and drawn off by a fan 27awhile the shot is directed by a hopper 28 and shoot 29 to the receptacle 10. When shot has collected in the receptacle 10 the operating cycle may be repeated. In a modification, a smaller quantity of shot may be circulated repeatedly, in which case the hopper 28, valve 25 and electromagnetic control are no longer required. Specification 832,253 is referred to.
Patent GB-1518150-A (GB)
Title: Basket arrangements for perambulators
IPC: B62B9/26
Filed: 1976-09-14
Abstract: 1518150 Baskets WILLIAM SILCOCK & SONS Ltd 14 Sept 1976 [27 Sept 1975] 39656/75 Heading A4G [Also in Division B7] A basket, having a rear wall 10a, Fig. 2 which is concave in plan view and inclined in side view, is attachable by means e.g. hooks 17 to the framework 22 of a collapsible pram.
Patent GB-920997-A (GB)
Title: Improvements in means for gripping the fibres in textile fibre drawing
IPC: D01H5/56
Filed: 1960-11-18
Abstract: 920,997. Drafting apparatus. A. E. CISA. Nov. 18, 1960 [Aug. 9, 1960], No. 39795/60. Class 120 (2). The fibres are gripped in drafting-mechanism by forming the rollers of each pair with interengaging teeth or corrugations; one of the rollers is of hard material and the other resilient and the width of the teeth of one roller is greater than the distance between adjacent teeth of the other. The teeth on the rollers may be longitudinally or helicoidally arranged and may be of square or other cross-section. The positions of the lower rollers are adjustable on a stand 1; the upper rollers are carried by an arm 11 pivoted at 10 to a member 8, the position of which can be adjusted on a shaft 7 by a screw 9, the member 8 and the cap bar being locked together by the engagement in a slot 13 of a latch 12 rotatable by a handle 14. The positions of the top rollers along the bar 11 may be adjusted by suitably positioning bolts 16 along a slot 15 and the interengagement of the teeth and grooves in the rollers may be varied by arrangements as shown on the case of the top rollers only, where the bearings are slidable in guides 17 by rotating screws 20.
Patent GB-871343-A (GB)
Title: Diaphragm pump
IPC: F04B43/00
Filed: 1957-12-23
Abstract: 871,343. Diaphragm pumps. SCHAURTE, P. Dec. 23, 1957 [Dec. 22, 1956], No. 39970/57. Class 102(1). Variation of the effective stroke of a reciprocating pump comprising two flexible resilient diaphrams 12, 9 forming with a housing wall 10 an oil-filled chamber 22 and wherein the diaphram 12 is reciprocated by a cam-actuated plunger 15 and. the diaphram 9 forces liquid having entered a pumping chamber 2 through a duct 3 past a check valve 7 to a delivery duct 5 is effected by axial positioning relative to the housing member 13 of a guide sleeve 17 for the plunger 15 in screw threaded engagement with said housing member 13 and in a withdrawn position providing a space into which the annular portion 12a of the diaphram 12 is forced by the oil pressure in chamber 22 ; the strength of spring 6 being sufficient to prevent the valve plate 7 being opened until the diaphram portion 12a is forced against the lower end of guide member 17. Specifications 871,344 and 871,345 are referred to.
Patent GB-1483881-A (GB)
Title: Weft selector for looms
IPC: D03D47/38
Filed: 1975-10-02
Abstract: 1483881 Weft selectors INCOTEX SA 2 Oct 1975 [11 Oct 1974] 40230/75 Heading D1E A weft selector comprises pivoted spring loaded levers 4 each having a weft guide 8 which are operated by cables 13 to bring a selected weft into the path of an inserter 14. More than one guide may be selected to insert more than one weft simultaneously.
Patent GB-1361499-A (GB)
Title: Protective system
IPC: G08B13/16
Filed: 1971-09-01
Abstract: 1361499 Intruder and fire alarms GENERAL PROTECTION SERVICES (SECURITY) Ltd 1 Sept 1971 40740/71 Heading G4N An alarm system comprises a portable selfcontained unit including a generator 11 of ultrasonic or invisible electromagnetic vanes, a detector 12 responsive to amplitude change in the radiated or reflected wave from the generator 11 and a radio transmitter 14 activated by the detector 12 to transmit an alarm signal to a remote receiver 17. Each of a plurality of generators 11 has a tone generator 19 of a discrete frequency so that the appropriate local unit may be identified by filters 20. The transmitter 14 may be turned off after 30 sees.
Patent GB-955112-A (GB)
Title: Improvements in the production of perforated non-woven fibre fleeces
IPC: D04H1/495
Filed: 1960-11-28
Abstract: A multiple number of spaced apertures are produced through a non-woven fibre fleece by passing a stream of superheated steam through a perforate surface and through the fleece against an imperforate backing surface while keeping the fleece between the perforate and imperforate backing surfaces, the stream of steam having sufficient velocity to displace individual fibres of the fleece.  The other conditions for carrying out the process are the same as those described in the parent Specification.
Patent GB-1278110-A (GB)
Title: Apparatus for excavating trenches
Inventor: MIOTTI GIOSUE
IPC: E02F3/20
Filed: 1969-08-14
Abstract: 1278110 Excavating trenches IMPRESA COSTRUZIONI OPERE SPECIALIZZATE SpA 14 Aug 1969 [31 May 1969] 40784/69 Heading E1F Apparatus for excavating trenches comprises a rotary head 11 mounted on a frame 1 having horizontal guides 3 slidably engaged by a carriage 5 for the head which rotates about a downwardly extending axis. The head 11 is carried by a rotatably driven shaft mounted in a slide 6 which is slidable horizontally relative to the carriage 5, the slide and the carriage having holes adapted to register with transverse holes in the frame 1 whereby the head can be moved along the length of the frame by selectively engaging pins in the holes so that the slide and the carriage can be moved alternately. Hydraulic jacks are provided for operating the pins, and the slide and the carriage are moved relative to each other by supplying fluid alternately to the ends of cylinders provided in the slide 6 which engage pistons on the carriage 5. The frame 1 is supported by pulleys 2 for vertical movement, and the shaft is pivoted in the slide 6 so that it can extend at 5 to either side of the vertical. A suction duct C is provided to remove cut material together with bentonite mud which is separated and returned to the trench. The head 11 may have cutters on its lower surface as well as on its periphery. Operation may be automatic.
Patent GB-1445709-A (GB)
Title: Electrically controlled fuel injection systems for internal combustion engines
IPC: F02D41/18
Filed: 1973-08-30
Abstract: 1445709 Transistor pulse circuits ROBERT BOSCH GmbH 30 Aug 1973 [31 Aug 1972] 40860/73 Heading H3T [Also in Division G3] In/an I.C. engine electronic fuel injection system (see Division G3) injection valves opening pulses are provided, via a power stage, by a monostable multivibrator 23 triggered in synchronism with engine rotation by a switch 30, a pulse-shaper 21 and a frequency divider 22. The multivibrator 23 includes a timing capacitor C which is charged with constant current Ia from a source A, Fig. 4 (not shown), over a fixed angle of crank-shaft rotation. The transistors T1 and T11 are blocked during the charging period whereas the transistors T2 and T12 are conductive, the transistor T4 being maintained in its non-conductive state by way of transistor T3 which is then conductive. This state is ensured by the control of the transistor T3 by means of the switching voltage 80 from divider 22 and thus prevents the charging operation from being terminated prematurely by any voltage surges on line 35. The charging operation is terminated only when voltage 80 jumps to zero. The differentiating capacitor 87 then transmits a negative pulse k to the base of T1 which becomes conductive. The second switching voltage 81 from divider 22 at the same time blocks source A and the charge on capacitor C blocks the transistors T2 and T12 so that transistor T3 becomes non-conductive and T4 conductive. During the discharge of C which then commences, the source E of discharge current, Fig. 5 (not shown), supplies a constant discharge current Ie which causes the voltage Uc across capacitor C to drop linearly. As soon as this voltage has attained zero value, the transistor T2 assumes its conductive state and, despite the zero value of the voltage 80 still prevailing, its collector current flowing through resistor 94 puts transistor T3 into its conductive state. Transistor T3 then renders the feedback loop effective and blocks transistor T4 and at this instant the previously existing control pulse Jo is terminated. The control pulse Jo has a duration proportional to the quantity of air entering the cylinder at each induction stroke, and either the charging current or the discharging current can be made dependent upon this quantity.
Patent GB-968773-A (GB)
Title: A product consisting of a body of fibres made of glass or like mineral fibres
IPC: D04H1/4218
Filed: 1962-10-29
Abstract: 968,773. Laminates. W. H. W. SCHULLER. Oct. 29, 1962 [Nov. 6, 1961], No. 40865/62. Heading B5N. A laminate comprises at least one fleece 1 of glass or like mineral fibres of length 5-30 inches bonded to at least one mat 2 of randomly orientated glass or like mineral fibres of length less than 3 inches and preferably less than 1¢ inches. The fleece may be sandwiched between two mats or a mat may be sandwiched between two fleeces which may or may not have the same thickness (see Figs. 1, 4, and 2, not shown). Adhesives suitable to bond the layers are phenol-formaldehyde resin or similar resins, or starch. Specification 805,551 is referred to.
Patent GB-1010354-A (GB)
Title: Improvements in or relating to inflatable support members
IPC: A41D27/26
Filed: 1963-10-16
Abstract: 1,010,354. Flexible tube compressors. A. C. GRAFF and M. WALLMAN. Oct. 16, 1964 [Oct. 16, 1963], No. 40916/63. Heading FIN. [Also in Division A3] An air pump formed of elastomeric material is deformed by manual pressure to inflate a tube attached to its ends. The tube 10 is inflated by applying pressure to the body 12 of the air pump 11 when a valve 24 in a closure member 17 at one end closes and an outlet valve in the reduced portion 13 at the other end opens. Upon relieving the pressure the valve 24 opens and air is drawn into the body 12 through a passageway 23 by the partial vacuum created therein. The closure member 17 is removable from the body 12 while maintaining the tube 10 inflated. An air release aperture 26 is provided in the closure member.
Patent GB-1004466-A (GB)
Title: Improved non-aqueous deinking process
Inventor: SAMUELSON GILBERT JUSTUS
IPC: D21C5/02
Filed: 1962-10-31
Abstract: A process of de-inking paper products without any prior contact with water comprises contacting the products with an organic solvent containing as a solute a surface active agent.  Various surface active agents of the anionic, cationic, non-ionic and ampholytic types are listed while in particular oxyalkylated agents are described.  Many solvents are also listed.  The used paper is sorted, dusted, macerated, shredded, and thus beated as a suspensions of about 1-10% by weight in the solution.  After heating the excess liquid is separated and the fibre content washed if desired.  A filter of the Oliver type wheels comprises a perforated drum through which the liquid is drawn leaving the mat of fibres on the outer surface, may be used.  The fibres may there be bleached.  The ink is removed from the solution by filtration, settling and decartation, and/or distillation.  A counter current extraction process may be used.
Patent GB-1005882-A (GB)
Title: Coal plough
IPC: E21C27/34
Filed: 1961-11-17
Abstract: 1,005,882. Mineral-mining machines. A. OELLRICH, [trading as MASCHINENFABRIK UNDEIS ENGIESSEREI A. BEIEN]. Nov. 17, 1961 [Nov. 19, 1960], No. 41281/61. Addition to 931,620. Heading E1F. In a mineral-mining plough, such as that described in the parent Specification, in which on the plough encountering abnormal resistance to advance the resultant slip between the plough body and the haulage means thereof is utilized to drive cam means to cause blows to be struck on the shearing edges of the plough the cam means include a cam wheel 4 having cams 3 so disposed thereon that always when one of the cam followers 1, 2 disengages from a cam another follower is already engaged by another cam to move the associated striker mass 5 against the spring assembly coupled thereto.
Patent GB-1143285-A (GB)
Title: Sealing device for grooves between structural blocks
Inventor: CRONE ALFRED FORBES
IPC: E01D19/06
Filed: 1966-09-19
Abstract: 1,143,285. Expansion joints. ACME HIGHWAY PRODUCTS CORP. 19 Sept., 1966, No. 41709/66. Heading E1G. An elastomeric expansion joint sealing strip has straight parallel side walls 15, 16, top 17 and bottom 20, 21 walls, interior diagonal webs 23, 24, 27, 28 interconnecting the top and side and bottom and side walls, and an intermediate wall 30, parallel to the side walls, spaced from the top wall and connected with the diagonal webs to prevent upward movement of the top wall on compression of the sealing strip. The bottom wall is of V or W shape to assist insertion of the strip into a recess having a cement and lubricant coating and stop ledges to limit the insertion depth.
Patent GB-1018645-A (GB)
Title: Improvements in or relating to control means for electrical apparatus
Inventor: GURWICZ DAVID
IPC: H02H7/22
Filed: 1963-10-23
Abstract: 1,018,645. Control of D.C. motors. SEVCON ENGINEERING Ltd. Oct. 8, 1964 [Oct. 23, 1963], No. 41731/63. Heading H2J. A control system as described in Specification 950,734 is provided with a contactor SC for short-circuiting the main current-carrying controlled rectifier SCR2, the said rectifier being in a conducting condition before the contactor closes and remaining so until the contacts of the contactor, on breaking, have separated sufficiently to prevent arcing. The contactor SC comprises an interlock contact S.C.Int. which closes before the main contacts and opens after them. Closure of the interlock contact applies positive battery potential continuously to an oscillator for maintaining the controlled rectifier SCR2 in a conducting condition.
Patent GB-903397-A (GB)
Title: Apparatus for cooling liquids and gases
Inventor: SCHULENBERG FRANZ
IPC: F28B1/06
Filed: 1958-12-29
Abstract: 903,397. Fluid-cooling apparatus. HAPPEL G.m.b.H., [trading as GEA LUFTKUHLERGESELLSCHAFT HAPPEL G.m.b.H. & CO. KOMM.-GES.]. Dec. 29, 1958, No. 41910/58. Class 64 (3). A fluid cooler intended for the cooling of liquids, vapours or gases without change of phase, comprises rows of tubular heat-exchange elements carrying the fluid to be cooled, arranged above a suction chamber 6 having lateral inlets 7, 7a for a gaseous coolant such as air positively impelled (e.g. by fans 5) over the elements, the fluid to be heated being distributed to the elements through a common, centrally-disposed, supply conduit 2 and cooled fluid being collected from the elements in conduits 3, 3a extending generally along the sides of the suction chamber, the arrangement being such that the hottest zone of heated coolant located above the middle zone of the suction chamber, i.e. in the region of the conduit 2, is screened from the lateral inlets of the suction chamber by the cooler streams of coolant which have passed over those cooler portions of the heat-exchange elements remote from the said middle zone and hence the more highly heated coolant is prevented from being drawn again into the suction chamber through the lateral inlets. In the form shown, two side-byside rows of elements are shown and each element comprises two sections 1, la interconnected in a gable arrangement by conduits 4 serving as expansion compensating means. A row of the fans 5 is associated with each row of elements. Re-entry of the more highly heated coolant into the suction chamber 6 is prevented at the ends of the apparatus by baffles (not shown).
Patent GB-949064-A (GB)
Title: Improvements in or relating to thermally controlled fluid flow control valves
IPC: G05D23/02
Filed: 1960-12-06
Abstract: 949,064. Valves. F. A. SIMPSON. Dec. 1, 1961 [Dec. 6, 1960], No. 42044/60. Heading F2V. A thermally-actuated valve comprises a cylindrical casing 1 having three ports 4, 5 and 6, in which at least two of the ports 4 and 5 are angularly spaced around the periphery and co-operate with a rotor having two arcuate shutter members 11, 12 the rotor being rotatable on a fixed, manually-adjustable spindle 7. Two wax-filled thermostatic elements 15, 16 of the cylinder plunger type, are provided, the casing of the element 15 is connected by a member 17 to the fixed spindle 7 while the plunger 18 is connected by links 19 to an arm 21 of a carrier 20 whose opposite arm 22 carries the casing of element 16. The plunger of the element 16 is connected by links 23 to webs 14 of the rotor whereby expansion of either thermostat element causes rotation of the rotor to vary the opening of the ports 4, 5. In the embodiment shown, the valve is used as a mixing valve in which the ports 4, 5 are the hot and cold water inlets and the port 6 the outlet. The elements 15, 16 preferably have different temperature ranges which overlap whereby first one is operative then, as the temperature rises, the other becomes operative. The ports 4, 5 preferably extend over 30 degrees and the shutter members over 60 degrees. In a modification, when the valve is used to control flow of cooling water in an I.C. engine, port 6 is the inlet and the ports 4, 5 lead to the radiator and a by-pass of the radiator. The wax elements preferably have the same range and the ports 4, 5 extend over 60 degrees. Specifications 576,779 and 845,243 are referred to.
Patent GB-1163173-A (GB)
Title: Floating Breakwater
Inventor: BRUCE PETER
IPC: E02B3/06
Filed: 1966-09-21
Abstract: 1,163,173. Floating breakwaters. P. BRUCE. 20 Sept., 1967 [21 Sept., 1966], No. 42056/66. Heading E1H. A method of forming a breakwater comprises mooring in position an elongated, closed hollow, floatable member 1 and filling it with fluid, the filled member having an upper, longitudinally extending, laterally inclined plane or curved shelving surface 8 and a submerged vertical extent not less than the amplitude of the largest wave desired to be attenuated, and being filled with fluid so that its buoyancy causes the inclined shelving surface to be at or adjacent to the cabin water level, there being not more than 1/10 of the vertical extent of the floatable member above calm water level. The member 1 is moored in netting 3 to anchor blocks 4. Several members may be arranged as a bundle or in parallel, or in series to form a closed loop or lagoon within which a vessel may operate.
Patent GB-1397842-A (GB)
Title: Device for loading materials into a container
IPC: B65F3/02
Filed: 1972-09-11
Abstract: 1397842 Loading material into containers SOC D'EQUIPEMENTS MANUTENTIONS ET TRANSPORTS 11 Sept 1972 [10 May 1972] 42068/72 Heading B8E A device for loading material, e.g. refuse int a container, e.g. a dust cart 1, comprises a hollow shaft 5 carrying teeth 4 and being mounted for rotation on an eccentric portion 6 of a crankshaft having radial arms 7 and stub shafts 8, means for rotating the crank-shaft about an axis 9 so that the hollow shaft 5 travels in a circular path 11, and means for guiding the hollow shaft 5 so that the teeth follow a closed path 13. The ends of the hollow shaft 5 are integral with slideways 14 which engage pivotal sliding blocks 15 to guide the shaft 5. The stub shafts 8 are integral with segments 18 which are rotated by hydraulic double acting rams 23, 24 which are staggered relative to each other and controlled by distributers 26 operated by portions 25, 27 of the segments to ensure continuous rotation of the crank-shaft. As shown, the teeth sweep refuse from a hopper 3 into the main body of the dust cart, and interdigitate with the teeth of a fixed rake 30 which crushes and strips refuse from the teeth 4.
Patent GB-1482545-A (GB)
Title: Systems comprising an aromatic polyisocyanate and an encapsulated catalyst
IPC: C07B61/00
Filed: 1974-09-30
Abstract: 1482545 Isocyanate/catalyst systems MINNESOTA MINING & MFG CO 30 Sept 1974 [1 Oct 1973] 42290/74 Heading C3R An isocyanate/catalyst system (S), latent at room temperature, is made by blending with high shear a liquid isocyanurate trimerization catalyst (C) of # # 5000 cp. at 25 C. and an aromatic polyisocyanate (I) to form a dispersion of droplets of (C) in (I), and then removing the shearing force allowing a capsule shell wall of partially polymerized (I) to form about the droplets. (C) may be a metal salt of an organic acid in a polyol solution or in a polar solvent. The system (S) may be triggered by e.g. ultrasonic waves, dielectric means, mechanical shear, or polar solvents, or heating to >50 C., causing permeation of (C) through the shell wall. The capsule diameter may be, e.g., 1-20 Ám, and 0À1-5% wt. (C), based on (I), may be present. (I) may be R(NCO) n  where R is aryl or alkaryl and n is 2 to # 5; or it can be an isocyanateterminated prepolymer, made from a mixture having NCO/OH equivalent ratio, e.g. up to 6. The system (S) may be used alone or mixed with more polyisocyanate or isocyanate-terminated prepolymer. When polar solvent is used as activator, it may serve to plasticize the resulting polymer. The capsules may be separated and dried, but on redispersion have reduced activity. The resin system may comprise fillers, e.g. SiO 2 , clay, BaSO 4 , mica or glass or plastic microballoons; or pigments. The resin may be foamed by blowing agents. Uses.-Adhesives, e.g. for bonding Al, steel, Cu, polyesters, polyamides, polyimides, polyurethanes, rubbers; repairing wood or plywood; thermal insulation.