baber/WOPTO huggingface dataset:
Patent GB-610597-A (GB)
Title: Improvements in machines for processing rubber, plastics or the like
IPC: B29B9/06
Filed: 1946-03-01
Abstract: 610,597. Forming rubber &c. into pellets by extrusion machines. BROWN, F. E. March 1, 1946, No. 3885/47. Divided out of 610,560. [Class 87(ii)] A machine in which plastic material such as rubber is forced along an enclosed passage and out through a gauze or other perforated member having small openings to retain foreign bodies, has one or more valve-controlled openings in the wall of the enclosed passage adjacent to the gauze,. these openings being normally closed and being opened when desired to permit the material to by-pass the gauze or the like and to flow out of the passage with little or no resistance. In a prefered form, the plastic material is forced by a screw into space 40, Fig. 2, and normally passes through straining gauze 24 and pelletizing die 22, but by rotation of ring valve 43 the material together with large impurities pass through ports 42 and 44. In a modification, Fig. 6, the plastic material normally passes through gauze 65 surrounding die 64, but foreign bodies may be forced through port 63 operated by a circular valve, this port normally being kept closed. Specifications 536,421, 610,560 and 610,598 are referred to.
Patent GB-364887-A (GB)
Title: Improvements in or relating to wind screen wipers
IPC: B60S1/18
Filed: 1931-02-07
Abstract: 364,887. Converting rotary into reciprocating motion. KIRKBRIGHT, C. W., 29, Leamington Street, Tong Road, Wortley, DUGGAN, W., 653, York Road, BENTLEY, E., 99, St. Mark's Road, Woodhouse Lane, and RAYNER, J. H., Scholes Lodge, Scholes, all in Leeds. Feb. 7, 1931, No. 3906. [Class 80 (i).] Means for operating a windscreen cleaner 1 comprise a carriage 2 having a pair of pivotallymounted cams 12 with serrated edges for gripping an endless band 5 which is driven by an electric motor. The cams are linked together and are adapted to engage stops 15 whereby one cam is disengaged from one stretch of the endless band and the other cam is engaged with the other stretch at the end of each traverse of the wiper so as to reverse its motion. The cams may be replaced by a single cam or other frictional gripping means.
Patent GB-832041-A (GB)
Title: Improvements in and relating to means for dewatering sludge in sewage disposal installations
IPC: B01D35/20
Filed: 1958-02-06
Abstract: 832,041. Filters. SEWAGE & WATER PURIFICATION (PROPRIETARY) Ltd. Feb. 6, 1958 [Feb. 11, 1957], No. 3909/58. Class 46. Sewage sludge admitted at 23, Fig. 1, proceeds by a tortuous path in a spreading box 5 to a slot 19 whence it flows on to a fine screen 1, the filtrate passing also through a finer screen 2. Each screen is backed by a coarser screen and the screens are vibrated by a single magnetic vibrator 6 having an adjustable amplitude whose upper limit may be #inch ; the armature 8 is connected to the screens. The screens proper and the backing screens are attached to the stationary structure 9 by exteriorly-operated tensioning means. In Fig. 4, the structure 9 may be tilted, by means not shown, so that the slope of the screens may be varied. Also, each screen is of stepped formation, and may consist of a single length or of separate sections ; in either case each step is connected independently to a yoke 38 which in turn is connected to the armature of the vibrator 6.
Patent GB-737901-A (GB)
Title: Electric rheostats
Inventor: HAIGH RICHARD WOOLLISCROFT
IPC: H01C10/18
Filed: 1953-02-12
Abstract: 737,901. Resistance networks. LUCAS (INDUSTRIES), Ltd., J. April 6, 1954 [Feb. 12, 1953], No. 3954/53. Class 37. A voltage divider comprises a chain of resistors evaluated to produce voltage drops 1e, 2e ... as shown in Fig. 2 and the output variable in e/2 steps is taken from a centre-tap i on a resistor h. The latter interconnects moving contacts f, g which bridge successive contact bars c whereby the output varies in steps 0-1e-1.5e ... In Fig. 2 the output stands at 3.5e and when f, g are moved along so that f is in the gap between bars c the output increases to 4e. An alternative arrangement, Fig. 1, comprises odd and even parallel chains 1e, 3e, &c., and 2e, 4e, &c., and staggered contact bars c, d bridged by resistor h. The invention applies also to annular resistance chains.
Patent GB-548021-A (GB)
Title: Improvements in and relating to arched constructions
IPC: E04C2/32
Filed: 1941-03-24
Abstract: 548,021. Concrete building construction units. WALLER, J. H. DE W., and BOWEN-COLTHURST & PARTNERS, Ltd. March 24, 1941, No. 3959. [Class 20 (iv)] Building units 12 consist of concrete plastered on fabric stretched between parallel angled supports, one limb 12a of each support constituting a wall element and the other 12b a roof element. The fabric sags both lengthways and crossways, the depression being deepest at tne angle of the unit where also the concrete is thickest. The supports are flanged for attachment to each other, and formed at*one end with a ridge piece or flange. In building a hut, a number of units 12 are set up side by side, the opposite ends at the roof ridge being bolted together, and the joints caulked. The units are secured together by bolts 20, Fig. 6, to form a structure as shown in Fig. 4. Reinforcing rods may be used at 9 and 10, and wires 14 embedded in the concrete. Specification 545,334 is referred to.
Patent GB-546678-A (GB)
Title: Improvements in or relating to air compressors
IPC: F04B39/06
Filed: 1941-03-26
Abstract: 546,678. Air-cooled compressors. HOLMAN BROS., Ltd., and MILLS, E. C. March 26, 1941, No. 4070. [Class 8 (i)] A single fan cools the drive, e.g. an electric motor, or belt shaft bearings, and the intercooler or aftercooler of an air-cooled compressor. As shown in Fig. 2, air enters by a filter 16, and is compressed in the upper cylinder end and delivered through piping 14, intercoolers 3a, 3b connected by a passage 13 and piping 15 to the high-pressure end. The fan 4 on the crankshaft draws air over the motor and forces it laterally over the intercoolers and upwards over the cylinder fins ; the fan may also cool the oil sump in the base of the crank casing. The passage 13 is formed in the bottom of the fan housing. In a modification, the cooler 3a comprises flow and return pipes conveying the air to the second stage, and the cooler 3b is an aftercooler also with return flow pipes.
Patent GB-433051-A (GB)
Title: Improvements in or relating to rectangular clarifying or sedimentation tanks
IPC: B01D21/04
Filed: 1934-02-08
Abstract: 433,051. Gravity-separation apparatus. DORR CO., Inc., 247, Park Avenue, New York, U.S.A., and GIBBS, R. C., Abford House, Wilton Road, Victoria, London. Feb. 8, 1934, No. 4183. [Class 111] A rectangular settling-tank is provided with scrapers which, as they move from one end to the other in either direction, push the deposited matter laterally into a longitudinal channel or zone from which it is discharged by another scraper. Two series of scrapers 14 are mounted on a beam 13 suspended by members 12 from a carriage 10 travelling on rails 9 on the side walls of the tank. The scrapers are formed with inclined faces on both sides so that they push the sediment laterally towards a channel 4 in either direction of travel. They are mounted in slots in the beam 13 so that they are automatically adjusted under their own weight to the floor of the tank. The members 12 are supported by rollers 23 travelling on rails 24, 25, in such manner that, when the beam is lifted for inspection by means of cables 26, 27, attached to a winding drum 30, the members 12 are folded inwards. The members of the two series of scrapers 14 are staggered so that together they operate over the whole width of the tank. The sediment collected in the channel 4 is discharged therefrom into sumps 6 by means of a scraper 16, pivoted in a vertical slot in the beam 13. When the carriage 10 starts its return motion the scraper is caught by the edge 19 of the sump 6 and turned into the inoperative position indicated by dotted lines. In this position a member 17, which is formed as a comb or fork and which constitutes part of the scraper support, stirs the sediment in the channel 4 and assists in thickening or dewatering the sediment. A blade 21 which directs scum to a trough 22 may be connected to the scraper 16, so that one is brought into operative position when the other becomes inoperative. As shown in Fig. 4 the end wall 36 of the tank has low walls 35 extending outwardly therefrom and placed so that the forward series 33 of scrapers enter the spaces between the walls 35 while the second series 32 of scrapers reach to their ends. The upper ends of the walls 35 are inclined and inclines 38 are formed on the wall 36. With this construction there are no dead spaces for the collection of sediment which is moved laterally to the central zone. In a modified arrangement openings are left in the walls 35 for the passage of sediment. A modified construction of the discharging scraper is indicated in Fig. 4. The scraper 40 has inclined faces which, as the scraper moves in one direction, push the sediment in the angle between them along the channel 4, while, when the scraper moves in the other direction, the sludge is displaced outwardly but falls back into the channel 4 when the scraper has passed.
Patent GB-986338-A (GB)
Title: Triazinylamino stilbene compounds
Inventor: WILSON ROBERT HUGH
IPC: D06L4/664
Filed: 1963-02-01
Abstract: The invention comprises salts of the compound <FORM:0986338/C2/1> with an alkylolamine of formula <FORM:0986338/C2/2> wherein R, R1, R2, R3, R4 and R5 each stand for an alkylene radical (2-4 C), and n, n1 and n11 for 0 or an integer 1 to 6, or a mixture thereof.  The alkylolamine, e.g. triethanolamine, tri-isopropanolamine and the 1 : 1 condensation products of triethanolamine and ethylene or propylene oxide, is added to a solution of the compound in water or a water/glycol mixture, for the preparation and the resulting solution may be used as a whitening agent without isolation of the compound.ALSO:Whitening agents for paper comprise alkylolamine salts of the compound <FORM:0986338/D1-D2/1> The alkylolamine used is of formula <FORM:0986338/D1-D2/2> wherein R, R1, R2, R3, R4 and R5 each stand for an alkylene radical (2-4C), and n, n1 and n11 for O or an integer 1-6 a mixture thereof, e.g. triethanolamine, tri-isopropanolamine and the 1:1 condensation products of triethanolamine and ethylene or propylene oxide.  The salts may be added in solution (e.g. 10:1) to bleached sulphite pulp followed by resin and alum, or with a 10:1 starch solution used to surface heat acid-sized paper.
Patent GB-1058284-A (GB)
Title: A control system for electric motors
IPC: H02P6/08
Filed: 1964-01-31
Abstract: 1,058,284. Commutating arrangements for dynamo electric machines. GOLAY BUCHEL & CIE S.A. Jan. 31, 1964 [Jan. 31, 1963; Aug. 24, 1963], No. 4311/64. Heading H2A. A motor has a rotor and a stator winding which is energized through a first switching device which operates in accordance with rotor position and a second switching device which operates when an electrical parameter exceeds a set value to over-ride the first switching device and cut off the current supply to the motor winding. As shown, the supply to winding M is controlled by transistor switches 1, 2 which are controlled by rotor position detectors 7, 8. Detectors 7, 8 are controlled by the bi-stable trigger circuit comprising normally conductive transistors 3, 5 for the two directions of current flow in the winding respectively. If, however, the current in winding M rises, the voltage developed across resistor R will rise to a level that changes the trigger circuit to its other stable state thus rendering transistors 3, 5 non-conductive and thereby switching off the supply to detectors 7, 8. When the current falls to a set level control will be restored to detectors 7, 8 by transistors 3, 5 once again becoming conductive. Resistors R, R 1  and R 2  are chosen to give the required upper and lower limit values and this circuit may be used to control the speed of the motor. The diodes 9, 10 are employed, in the normal way, to recover the inductive energy stored in winding M. In a modification two motor windings having high mutual inductance are used and the limit values are set by capacitor 25 and potentiometer 18, Fig. 4 (not shown). A second set of motor windings whose energization is controlled in a similar way may be used. In a further modification the switching transistors are bridge connected with the motor winding connected in one arm of the bridge. Diagonal pairs of transistors are controlled together through a transformer coupling and in one case, Fig 5 (not shown), a low control voltage is used but in a second case, Fig. 6 (not shown), the connection is such that a control voltage is not needed. The limit values are set by resistors 44, 49, potentiometer 46 and diode 45 in the Fig. 5 connection and resistors 60, 61 in Fig. 6. It is stated that the motor may be braked by reversal of the polarity of the switching device and that a magnetically saturable circuit element or multivibrator can be used.
Patent GB-1405234-A (GB)
Title: Suction dredgers
IPC: B63B35/00
Filed: 1973-01-29
Abstract: 1405234 Suction dredgers BALLAST-NEDAM GROEP NV 29 Jan 1973 [28 Jan 1972] 4344/73 Heading E1F Adjacent rigid, tubular sections 6 of the suction pipe of a dredger are pivotally connected together by a universal joint structure disposed between the two, side by side disposed, flexible, elastic bellows 15 establishing communication between the forked ends of the tubular sections 6. Four joint structures are described in detail. In the structure shown the pivotal axes of the joint intersect at right angles. In a second structures the axes pass each other at right angles. The universal joint of a third structure involves a ball and socket joint, whilst in a fourth structure at least one of the hinge parts of the universal joint is journalled so as to be rotatable about the longitudinal axis of an associated pipe section.
Patent GB-575229-A (GB)
Title: Seals
IPC: G09F3/03
Filed: 1944-03-08
Abstract: 575,229. Seals. FITZPATRICK, H. D. (Ketchum Manufacturing Co., Ltd.). March 8, 1944, No. 4345. [Class 146 (ii)] A seal, which is especially applicable to prevent tampering with cars, comprises a locking strip C the ends of which are secured'in a casing B formed of two parts 10, 11 which are connected together by means of stamping dies 27, 28, Fig. 9, after the ends of the strip C have been secured together in the part 11 of the casing by means of split rings 19. The part 11 is threaded by means of a slotted aperture 12 over the slotted tongue 20 of the strip C and is made to enclose a locking head 13 formed of the bent-over part 13, 16, 14 of the other end of the strip to which it is secured by a ring 19 passed through a slot 18 in the tubular end 16 and slots 15 in the parts 13, 14. The part 14 extends from the part 11 as shown in Fig. 1 and serves as a guide for the tongue 20 which is passed into the casing so that it may also be held by a ring 19 which is passed through an orifice 21 in the tongue. The parts 10, 11 of the casing are now secured by means of the dies 27, 28, Fig. 9, which force the flange 25, Fig. 2, of the part 10 around a flared end 26 of the part 11 so as to form a seam connecting the two parts, and at the same time the extremity of the flange 25 is projected as at 26 so as to engage side notches 22 formed in the locking head 13 of the strip C, which is thus securely held to the casing B. The flange may cut into the locking- head, or coact with projections thereon so as to effect the junction of the head 13 and casing in other ways.
Patent GB-211873-A (GB)
Title: Improvements in the manufacture of refractory compositions and bricks
IPC: C04B35/03
Filed: 1924-02-20
Abstract: 211,873. Dynamidon-Werk Engelhorn & Co. Ges., Engelhorn, R., and Schaefer, J. Feb. 20, 1923, [Convention date]. Refractory substances containing magnesia.- Raw or calcined magnesite or magnesia is fused, cooled and washed, and is made into bricks &c. or applied as a coating and burnt at a high temperature in the usual manner. A portion of the fused material which has been finely ground serves as a binding-agent, and sintered magnesite may also be added. Temporary binders such as tar and dextrin may be employed. The material should be as free as possible from lime and iron. The latter impurity may be removed by fusing under reducing conditions and passing the fused material through a magnetic separator.
Patent GB-1170091-A (GB)
Title: Improvements in or relating to the transport of domesticappliances.
Inventor: SEVERS ANTHONY WILLIAM
IPC: B60B33/02
Filed: 1966-02-01
Abstract: 1,170,091. Castors. SEVERARD Ltd. 25 Jan., 1967 [1 Feb., 1966], No. 4401/66. Heading A4U. [Also in Division F2] A transport device for a domestic cooker etc. comprises a frame 1 having an upstanding member 7, engaged by a levelling nut 10 and co-operating with a socket in the cooker, and depending flanges 3, 4, 5 and 6 receiving a stub axle 11 of a roller 12 which has a series of circumferential holes 14, rotation of the roller and translation of the cooker is being prevented by engagement of the end 16 of a spring-urged locking rod 15 in one of the holes. Flanges 5, 6 are bored to form guides for the rod 15 which has a cranked end engaged in elongated slots in the plate 2 and in pivoted operating lever 22, rotation of the lever moving the rod so that the end 16 is engaged with or disengaged from a hole 14. The device may be secured at one corner of the cooker, ordinary rollers being provided at the other corners of the cooker or, as shown, the stub axle is adjustable in a sleeve 27 the other end of which receives a stub axle of a freely rotatable roller. In a further modification the device has a lockable roller and a plurality of freely rotatable rollers. Forwardly extending shoes to prevent tilting of the cooker may be attached to the frame.
Patent GB-415032-A (GB)
Title: Improvements in and connected with gates for kinematograph apparatus
IPC: G03B1/56
Filed: 1933-02-14
Abstract: 415,032. Kinematograph apparatus. NEWMAN, A. S., 25, Hornsey Lane, Highgate, London. Feb. 14, 1933, No. 4449. [Class 97 (i).] In a gate assembly comprising a hinged gate member which is opened and closed in timed relation to the film movements, a pin for intermittently feeding the film, and a registration pin to hold the film during the return movement of the feeding pin, the fixed part of the gate has a guide which, when the gate is open, retains one film edge close to the fixed part, the hinged member has a guide causing the film to move from the fixed part when the gate is open, and the feeding pin, at the end of its feeding stroke, is in alignment with the registration pin. As shown, a guide 9, Fig. 2, is screwed to the fixed part 8 and is rebated to hold the film thereto ; a spring-pressed guide 13, and two fixed guides 17, respectively higher and lower than it, hold the film edges out of contact with the usual guides 14, 18, and are preferably faced with agate or jade. The guide 13 is housed in a perforation 12 and is carried by a pivoted plate 15 pressed by a spring 16. The hinged gate member 27 is hinged in lugs 25, has a recess 9a and aperture 12a to accommodate the plate 9 &c., and carries a guide plate 27a which holds the film from the part 8 when the gate is opened during feed movements. Slots 28, 30 are formed in the member 27 and plate 27a, and a slot 29 is formed in the member 27. The feeding pin is carried by a driving bar 34, Fig. 1, and reciprocates in the slots 28, the bar being fixed to a sleeve 39 sliding on a rod 37 and having a sliding engagement with a parallel rod 38. The sleeve 39 is reciprocated by a connecting rod 41 from an eccentric 42 pivoted eccentrically on a plate mounted on a driven shaft 44, and the shaft 44 lies out of the path of motion of the sleeve 39 so as to cause the bar 34 to move more quickly during the feeding stroke than during the return stroke. The member 27 is urged away from the part 8, to open the gate, by a spring 36 operating through a ball 35, and its movements are controlled by a face cam 45 through a lever 31 engaging a pivoted plate 32 normally covering the slot 29 ; an adjustable screwed contact 31a is provided on the lever 31. When the gate is to be completely opened for cleaning &c., the plate 32 is turned on its pivot to free the slot 29 and allow the lever 31 to pass through it, and the bar 34 is brought opposite the slots 30. A fixed registration pin 20 is provided on the part 8 in such position that the feeding pin aligns with it at the bottom of its stroke, and the ends of the pins then overlap so that the film is partly moved on to the pin 20 before it leaves the feeding pin. The overlap may be formed by sloping ends on the pins, by a V-shaped groove in one of them and a wedge shaped projection on the other, or by stepping their ends. The recesses 47 in the film tracks of the gate may have parallel sides, as usual, and curved ends so as to provide large clamping surfaces around the exposure aperture 11.
Patent GB-1298873-A (GB)
Title: Improvements in spray-drying
IPC: B01D1/18
Filed: 1970-01-30
Abstract: 1298873 Spray drying MORINAGA MILK INDUSTRY CO Ltd 30 Jan 1970 [28 March 1969[4467/70 Heading BIB Liquor such as concentrated milk is dried by spraying it from atomizer 104 into a tower 101 which is supplied through tangential conduit 105 with hot air which flows downwards through duct 106, a small proportion of cool air being admitted through conduit 108 and annular orifice 109 so that an annular film of cool air flows down the inner wall of duct 106 and surrounds the spray 103 whereby the deposition of fine powder in the upper part of the tower is almost avoided. The amounts of concentrated milk, hot air and cool air may be controlled by automatic valves (not shown) connected to pipe 102, and conduits 105 and 108, so that the relative velocity and temperature distributions down the tower may be regulated. The dried powder product is discharged from a port (not shown) a the lower end of the tower. In a modified apparatus (Fig. 5, not shown), the inner wall of the tower is also supplied with an annular stream of cool air.
Patent GB-577821-A (GB)
Title: Improvements in hpmv electric discharge and like devices
IPC: H01J61/073
Filed: 1942-04-03
Abstract: 577,821. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., and KETTLEWELL, E. April 3, 1942, No. 4473. [Class 39 (i)] An electric discharge device such as a metal vapour lamp has a quartz envelope with an outwardly projecting portion in the form of a tube 2 on to which a stream of cooling fluid is directed while one end of an electrode 1 fits closely within the tube. The cooling fluid circulates within a quartz tube 12 connected to the envelope which is surrounded by tubes 5 and 7 sealed together. Molybdenum strips 6 gripped between these tubes form the connection between electrode 1 and external leaves 8.
Patent GB-558792-A (GB)
Title: Improvements relating to the coating of metal surfaces
IPC: C23C22/78
Filed: 1942-04-07
Abstract: 558,792. Coating metals. PYRENE CO., Ltd., and CLIFFORD, W. J. (Parker Rust-Proof Co.). April 7, 1942, No. 4565. [Class 82 (ii)] Protective coatings suitable for subsequent coating are produced on an iron, zinc or steel surface by first treating the latter with a solution of an hydrolysable iron salt to produce a thin, continous visible coating, then applying a dilute solution that includes a compound of hexavelent chromium as its sole or main coating constituent, the total amount of chromium not substantially exceeding that which can be reduced by the ferrous iron in the coating and then drying the second solution on the surface with reduction of most of the chromium to the trivalent form. Ferric salts such as the sulphate, chloride, perchlorate, chlorate, fluoride bromide or bromate or ferrous sulphate, chloride, fluoride and bromide may be used and the chromate solution may include other constituents such as phosphate radicles. The first coating may be rinsed before the application of the second solution either by spraying or immersion. Specification 534,852 is referred to.