baber/WOPTO huggingface dataset:
Patent GB-676084-A (GB)
Title: Improvements in or relating to diamond drawing dies
IPC: B21C3/18
Filed: 1951-02-13
Abstract: 676,084. Composite casting. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 13, 1951 [Feb. 16, 1950], No. 3485/51. Classes 83 (i) and 83 (iv). Drawing-dies.-A diamond drawing-die 6 is placed in a mould 1 while supported on a plate 3 and secured to the plate by casting a material 7 having approximately the same melting temperature and coefficient of expansion as the plate. Both materials may be cast-iron with a 3 per cent silicon content and form a permanent mounting for the die. The die 6 and plate 3 have preformed holes in axial alignment with a hole 5 in the mould which is connected to a vacuum pipe to prevent air from being entrapped. The plate 3 may be dove-tailed, as shown.
Patent GB-1435091-A (GB)
Title: Method of and apparatus for processing tea
IPC: A23F3/06
Filed: 1972-01-25
Abstract: 1435091 Tea manufacture B N SHEADER 25 April 1973 [25 Jan 1972] 3522/72 Heading A2B [Also in Division F4]  Tea manufacture includes the step of predrying tea leaf before it is fed to a drying chamber 10 using heated air discharged from the drying chamber. The tea is fed to the drying chamber 10 by a feed conveyor 9 which is made from perforated trays. The air is made to flow through the trays through an outlet 38, a chamber 36 and a discharge duct 34. Heaters 37, 38 re-heat the air, and waste-heat is used to heat cold air entering the drying chamber in heat exchanger 43. In the drying chamber the hot air passes downwardly through perforated conveyor 11. The dried tea leaf is removed by a pneumatic conveyor 40 and a cyclone separator 42. The conveyor may consist of perforated corrugated trays in an endless chain, which are pivoted and can tip. Before predrying the tea leaf is fermented on conveyors 6, 7 by conditioned air which is directed by baffles 25, 26. Before fermentation the leaf passes through C.T.C. apparatus comprising at least one pair of rolls 4 which are resiliently mounted so that foreign bodies can move them apart without damage, by a torsion bar 14 or a spring 15. The rolls are positioned correctly by discs fitted to their ends, so that they are the correct distance apart and in correct lateral register. Fig. 5 (not shown).
Patent GB-764366-A (GB)
Title: Improvements in or relating to means for heat dissipation in brakes, clutches and the like
IPC: F16D69/02
Filed: 1955-02-07
Abstract: 764,366. Cooling brakes. GOODYEAR TIRE & RUBBER CO. Feb. 7, 1955 [Aug. 4, 1954], No. 3537/55. Class 103 (1). [Also in Group XXIV] A means for absorbing and/or dissipating heat generated in brakes or clutches consists of pressing a permeable body of bonded particles of material mounted on one member against the coacting surface of another member and providing a flow of coolant through the permeable body to the interface of the body and the coacting surface of the other member. In the embodiment illustrated in Fig. 1 and applied to a mechanically-operated " spot-type " disc brake in which a rotatable axially-movable brake disc 1 is engaged by a pad of permeable material 18 housed in a supporting shell 17 situated on each side of the brake disc, braking pressure is applied to brake block 3 by means of a pressure plate 6 which is moved by a pushrod 7 actuated by a cam 12 attached to a brake lever assembly 13. A coolant medium in the form of a liquid gas such as ammonia is introduced into each brake block 2 and 3 via passages 21, 19 and 26, 22, respectively, when the brake is applied and annular groove 23 is aligned with an aperture 24 in the push-rod bushing 8. The ammonia is subsequently dissociated due to heat transfer by conduction through the brake lining due to friction and the brake cooled. The permeable material 18 may be of any material not chemically attacked by the ammonia such as thermally bonded nickel shot. The brake block may be constructed as suggested in Fig. 3, wherein a cup-shaped member 27 receives a plurality of smaller interfitting cup-shaped members 28. Each cup 28 contains a body of permeable material 29 made in the manner previously described, and is provided with an orifice 31 which supplies coolant to manifold 32 via conduit 33 to ensure stable operation of the permeable body in the desired temperature range. It is stated that the hydrogen and nitrogen gases resulting from the dissociation combine with air to produce a gas which has been found to enhance friction at the interface of the frictional surfaces. A portion of the brake disc 1 may be constructed of a permeable material and coolant introduced into the brake disc itself.
Patent GB-1047082-A (GB)
Title: Thyronine derivatives
IPC: C07D233/78
Filed: 1964-01-28
Abstract: New compounds of formula <FORM:1047082/C2/1> where R1 is lower (i.e. 1-4 C) alkyl or cycloalkyl of 3-6 C, R2 is hydroxyl, cycloalkoxyl of 3-6 C or lower-alkoxyl, and each of R3 and R4 is hydrogen, lower alkyl or halogen, and their N - acyl derivatives, and their salts, and their isomers, are prepared by processes:-(1) cleavage of hydantoins, (2) hydrolysis of corresponding N-acyl esters, de-etherification of groups R2 also occurring, (3) iodination of compounds having R3, R4 as hydrogen, using iodine and alkali metal iodide, (4) N-acylation and deacylation, (5) resolution.  Starting materials produced are:-1-(4-methoxyphenyl) - 2 - nitro - propene; R2 - benzyl R1 ketones; 5-(R2-benzyl)-5-R1-hydantoins and corresponding 4 - hydroxy - 3,5 - dinitro - benzyl compounds; 5[4 - (R2,R3,R4 - phenoxy) - 3,5 - dinitrobenzyl] - 5 - R1 - hydantoins and corresponding 3,5-diamino and 3,5-diiodo compounds; DL - N - acetyl - a  - methyl - tyrosine and the D and L isomers, the 3,5-dinitro derivatives thereof and their ethyl esters and thence the N - acetyl - b  - [3,5 - dinitro - 4 - (41 - methoxyphenoxy)phenyl] - a  - methyl - alanine ethyl esters and corresponding 3,5-diiodo-compounds.
Patent GB-396714-A (GB)
Title: Improvements in or relating to projection screens
IPC: G03B21/62
Filed: 1932-02-06
Abstract: A gelatine composition comprising glycerine, formaldehyde, water and the other agents described in Specification 368,723, [Group XX], is coated on to knit fabric for use as a projection screen.
Patent GB-547661-A (GB)
Title: Improvements in or relating to lamp units
IPC: H01J61/30
Filed: 1942-03-18
Abstract: 547,661. Lamps having trough-shaped reflectors. STEVENS, A. H. (Electronic Laboratories, Inc.). March 18, 1942, No. 3627. [Classes 75 (ii) and 75 (iv)]  An oval-sectioned fluorescent or other tubular lamp. 3 is  mounted in sockets at the opposite ends of a trough-shaped reflector 1 having a V-shaped projection  4 along its middle line, the lamp contacts being so arranged that the thin edge of the lamp is directed toward the apex of the projection so as to offer the minimum obstruction to the reflected rays.
Patent GB-414658-A (GB)
Title: Improvements in or relating to machine guns
IPC: F41A3/82
Filed: 1933-02-06
Abstract: 414,658. Machine guns. VICKERS-ARMSTRONGS, Ltd., LARSSON, C. A., and HIGSON, P. R., Vickers House, Broadway, Westminster. Feb. 6, 1933, No. 3639. [Class 92 (ii).] Consists of a modification of the cam system in machine guns of the barrel-recoiling type, wherein the extractor forms part of or is rigidly connected to the lock and a cartridgetransporter is mounted to move downwards in the lock under the action of fixed cams to bring the cartridge into line with the barrel and then to move upwards into its original position. The extractor C is detachably secured to the lock B and is provided with flanges C<2>, Fig. 3, for guiding the cartridge-rims in their downward movement, the flanges having spring catches C' at their upper ends to engage and withdraw the positioned cartridge from the feed-box. On the recoil of the lock after firing, the cartridge-transporter D working within a vertical slot C<5> in the extractor is controlled by fixed cams J, J<1> and moves downwards to align the cartridge withdrawn from the feedbox, with the barrel, the spent cartridge case being ejected downwards. A plunger K, Fig. 6, is mounted on a spring arm K<1> which is so shaped that on the cartridge-transporter D approaching its lowest position, the lower end of the spring arm is actuated to thrust forward the plunger K thereby arresting the descending cartridge in alignment with the barrel, after the spent cartridge case has been ejected. The cartridge-transporter is elevated to its original position on forward movement of the lock, by fixed cams J<1>, J<3>, a pivoted spring- pressed arm J<5> being provided which projects into the cam tracks J<2>, J<4> and ensures one-way movement of the horns D<1> on the transporter D, round these cam tracks. The arm J<5> also prevents closure of the breech after a short recoil. The cams J may be pivoted at j to the side plates, or may be carried by the rear hinged cover, to facilitate the removal of the lock. The construction and mounting of the recoil spring G are described in Specification 411,971.
Patent GB-144979-A (GB)
Title: Improvements in centrifugal dryers
IPC: B04B3/04
Filed: 1920-02-06
Abstract: 144,979. Elmore, G. H. Feb. 6, 1920. Strainer separators; baskets or drums.-In a centrifugal drier for granular materials in which a rotary conveyer, co-axial with the annular screen, removes the solids from the screen, the conveyer is periodically and automatically moved to reduce the clearance between it and the screen. The basket is composed of a number of segmental sections 42 held by upturned edges in grooves 39 in bars of a conical frame connected by annular flanges 40. The frame is made fast on the shaft 24 by a boss 35 held by a nut 36. Within the screen a series of blades 31 are supported on a boss 34 on a hollow shaft 30, which is driven at a slightly slower speed than the basket by gearwheels 55, 56, 57, 58. The shaft 30 is carried in a bearing 28, supported on a cross-frame in which it is vertically movable, its lower position being determined by the nut 27. The bearing 28 with the conveyer blades is raised by a bell crank 89 at suitable intervals. This crank 89 is moved by the cam 86, which is driven from the main shaft'24 through a worm 66 and wheel, a friction ratchet 74, 78 having an adjustable feed, and a second worm and wheel 82. The frame of the apparatus carries the channels 13, 17 for discharge of the separated materials, and a cover 20 is fitted to rest thereon.
Patent GB-620999-A (GB)
Title: Improvements relating to winding or hoisting arrangements
IPC: B66B19/00
Filed: 1947-02-07
Abstract: 620,999. Locking and unlocking lift cages. ECCLES, W., LAMB, E. LE L., FLOYD, S. A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 7, 1947, No. 3737. Drawings to Specification. [Class 78 (iii)] In a protective system for winding and hoisting arrangements the system comprises in combination a switch mechanically interlocked with the keps and a switch operable by movement of the winding gear, the said switches being arranged so that if the keps have not been withdrawn from under the cage which is at bank movement of gear to lower the cage causes the safety circuit to be broken thus cutting off the power supply and applying the emergency brakes. In the preferred embodiment a kep interlock switch, a headgear limit switch and optionally a clutch interlock switch, which is closed when the clutch is out, are provided for each cage and in operation the group of switches controlling the cage being raised is short circuited by a directional switch, the arrangement being such that the grouped switches control two indicating lamps and two relays, both of which latter must be closed if the safety circuit is not to be broken, said safety circuit being provided with switches, normally open, which can short circuit the relay contacts. In another embodiment relays are not used and the switches are connected directly in the safety circuit. In a further embodiment both groups of switches operate one time delay relay which is arranged to short circuit the directional switch when either set' of keps are withdrawn, and a further switch which can short circuit the directional switch is arranged to be closed when the winding gear is stationary. The circuit diagrams are shown in the Specification.
Patent GB-414668-A (GB)
Title: Improvements in knickers and garments of a like nature
IPC: A41B9/02
Filed: 1933-02-07
Abstract: 414,668. Knicker undergarments. LINDLEY, H. R., 41, Hartington Road, Sherwood, Nottingham. Feb. 7, 1933, No. 3773. [Class 141.] Knickers and like undergarments having a closed waist are arranged to be contracted around the body of the wearer solely by means of V-shaped tensioning portions 1 of knitted fabric in which rubber is incorporated, the V-shaped portions tapering downwardly from the top of the garment at each hip. The hip portions 1 may have elastic thread knitted or otherwise incorporated therein, and may comprise gussets let into the garment, or be knitted integrally with the garment. In a further alternative, the knitted hip portions which may possess elasticity only in a horizontal direction. British Specification 13328/84, [Class 141], and U.S.A. Specification 1,839,675 are referred to.
Patent GB-897515-A (GB)
Title: Improvements in or relating to electric regulating apparatus
Inventor: HENMAN CECIL BOURNE
IPC: G05F1/14
Filed: 1959-02-03
Abstract: 897,515. Control of several A.C. motors. BRENTFORD TRANSFORMERS Ltd. Nov. 3, 1959 [Feb. 3, 1959], No. 3820/59. Class 38 (3). [Also in Group XXXV] A plurality of loads H1, H2 which may be furnace-heating resistors or motors may be variably controlled sequentially by means of a voltage regulator 10, the arrangement being that firstly H1 is run up to full power, then switched directly across supply lines LN by means of a switch SW1, after which a second load H2 is connected to the regulator through a switch SW2, and also run up to full power by a reverse movement of the regulator. A twocontact regulator may be employed, each load being split into two parts across one regulator contact and one supply line.
Patent GB-1491893-A (GB)
Title: Fuel injection apparatus for internal combustion engines
IPC: F02M69/12
Filed: 1975-01-29
Abstract: 1491893 Mounting fuel injection apparatus GKN TRANSMISSIONS Ltd 29 Jan 1975 [2 Feb 1974] 3867/75 Divided out of 1491891 Addition to 1417704 Heading F1B In a modification of the fuel injection apparatus described and claimed in Parent Specification the air duct is separated from the fuel pump and metering means to form units 10 and 11, enabling separate mounting on an induction manifold 12. The unit 10 has its pressure and temperature sensors in communication with the manifold air via aperture 20 and is driven via wheel 24 by a toothed belt 23. The units 10, 11 may be each of unitary construction or be formed from separate parts. Several air duct units 11 may be used on a single manifold to obtain good air balance. The carburetter device of Specification 1417703 may be incorporated in the air duct unit. The fuel injectors are arranged in the manifold facing the induction ports, Fig. 2 (not shown).
Patent GB-827461-A (GB)
Title: Polymerisation process
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F10/00
Filed: 1956-02-08
Abstract: An olefin polymerization catalyst comprises a mixture of lithium aluminium hydride and/or titanium, zirconium or vanadium halides. Specification 827,464 is referred to.ALSO:A catalyst comprising a mixture of lithium aluminium hydride with a titanium, zirconium or vanadium halide is used to polymerize an alpha-olefin of formula R-CH = CH2, where R is an alkyl, cycloalkyl, aryl or alkaryl group by itself or mixed with another olefin of said formula or mixed with ethylene; in the last case at a temperature below 150 DEG  C. Specified olefins are propene, 1-n-butene, 1-n-pentene, 1-n-hexene and styrene.  The reaction may be carried out in a reaction medium consisting of aliphatic, cycloaliphatic or fully hydrogenated aromatic hydrocarbons.  Specification 827,464 is referred to.
Patent GB-1089392-A (GB)
Title: Improvements in or relating to fluid-metering devices
Inventor: MOSS NORMAN
IPC: G01F1/80
Filed: 1964-01-30
Abstract: 1,089,392. Metering fluid flow. PLESSEYU.K. Ltd. Jan. 27, 1965 [Jan. 30, 1964], No. 3945/64. Heading G1R. In a fluid-flow metering device comprising a body having two ducts 1, 2 respectively conveying two fluids M 1 , M 2  whose mass flows are to be compared each duct is equipped with a rotatable paddle wheel 12, 22 having axial blades and a motor for applying equal torques to the paddle wheels in the ducts and means for measuring the respective angular velocities of the paddle wheels 12, 22. Flow straightening blades 11, 21 are provided at the inlets of each duct 12, 22. The speeds of the paddle wheels are ascertained by pick-off devices 13, 14 which each emit a pulse for each revolution, each pulse being fed to the input of a computer 6. The computer output may be fed to a device controlling the effective size of the aperture 9 of a flow restrictor positioned in duct 1. A second restrictor may be arranged in the duct 2. To determine the flow rates of more than two fluids, two or more paddles may be inserted in one of the ducts with flow straighteners disposed between them, the torque of each paddle being balanced by a paddle in the other duct.
Patent GB-680568-A (GB)
Title: A tone control arrangement for a low frequency signal amplifier
IPC: H03G9/08
Filed: 1950-02-16
Abstract: 680,568. Valve amplifying circuits. COLE, Ltd., E. K., and BURNARD, C. L. Feb. 15, 1951 [Feb. 16, 1950], No. 3955/50. Class 40 (vi). A tone control circuit for a low-frequency amplifier using negative-feedback is such that when the volume control is adjusted to give maximum input to the amplifier the negative feedback causes relatively greater signal suppression of the higher frequencies than of the lower frequencies. The Figure shows a valve A comprising the diode detector and L.F. amplifier stages of a radio receiver, the R.F. signal input being applied across the tuned circuit 1 to produce a rectified voltage across the potentiometer 2. The anode of the valve is connected through a negative feedback path comprising capacitor 5 to the high potential end of potentiometer 2 and the capacitor 5 is of such a value that its impedance is lowest for the higher frequencies so that when the volume is at a maximum so also is the negative feedback and the higher frequencies including interference noises are substantially reduced. As the tapping point of the potentiometer 2 is moved towards the low potential end the effect of negative feedback is progressively reduced. Specification 494,024 is referred to.
Patent GB-875739-A (GB)
Title: Improvements in guideways for slides of machine tools or the like
IPC: F16C29/10
Filed: 1959-02-04
Abstract: 875,739. Machine-tool details. MASCHINENFABRIK FRORIEP G.m.b.H. Feb. 4, 1959 [Feb. 4, 1958], No. 3971/59. Class 83 (3). [Also in Group XXXIV] A guideway for slides &c. of machine tools has the surface pressure in one part thereof variable by an applied force. A slide 2 on a bed 1 is moved by a pinion 3 engaging a rack 4 on the bed 1. The driving force of the pinion, particularly if its direction of rotation is reversed, urges the slide 2 away from its engagement with the guideway, and a compensation force is applied by a device consisting of U- shaped pressure plates 5, 6 having an inflatable tube 7 therebetween, the plate 6 being attached to the slide. The tube 7 is pressurized by a pneumatic or hydraulic pressure medium which is supplied through a tube 8, an increased pressure serving to clamp the slide to the guideway. In a modification the tube 7 is replaced by adjustable spring-operated pressure rollers. Specification 244,288 is referred to.
Patent GB-311668-A (GB)
Title: A method of destroying vermin and their brood; also injurious germs, parasites and the like
IPC: A01N25/00
Filed: 1928-02-08
Abstract: 311,668. Vondran, A. Feb. 8, 1928. Disinfecting.-A method for destroying vermin and their brood, injurious germs, parasites and the like, carried out in two stages consists in first exposing the garments, domestic utensils, hides, foodstuffs, fodder or seeds containing the organisms to be destroyed, to a treatment with moist heat at approximately human blood temperature, and then subjecting the articles to the action of dry air, or other dry gas such as chlorine or sulphur dioxide or a gaseous mixture, at 80‹ C. until all the injurious organisms have been killed. A known process similar to that set forth above but involving also a preliminary treatment with dry air or gas at 80‹ C. is referred to.
Patent GB-449417-A (GB)
Title: Improvements in the shaping of ships' bows
IPC: B63B1/06
Filed: 1935-02-07
Abstract: 449,417. Ships' bows. DUNLOP, S., 49, Chancery Lane, London.-(Cantieri Riuniti dell Adriatico ; Trieste, Italy) Feb. 7, 1935, No. 4034. [Class 113 (ii)] The lines of bows are modified in the zone of the water line where they deviate from the normal substantially straight converging plan profiles WL<1> by broadening rapidly from the stem S in a convex arc which reverts gradually towards and finally merges in the basic plan profile giving the profile WL<2>. In a modification, the new profiles WL<2>, Fig. 3, merge in the basic plan profiles rather nearer the bows, the new lines assuming a swan-neck shape to afford an easy water run.
Patent GB-1416363-A (GB)
Title: Process for preparing polyisobutylene oxide mouldings
IPC: C08G65/08
Filed: 1973-01-26
Abstract: 1416363 Moulding plastics material DAICEL Ltd 26 Jan 1973 [27 Jan 1972] 4060/73 Heading B5A [Also in Division C3] Tensile drawing, stretching and moulding operations using poly(isobutylene oxide) or copolymers and blends thereof with other monomers and polymers respectively are facilitated by conversion by rapid cooling from temperatures above 170 C. to a crystalline form identified by an X-ray diffraction pattern having a characteristic peak at 2# equal to about 12 C. In Example 2 a polyisobutylene oxide sheet is extruded at 220 C., contacted with a roll cooled to 5 C. to give a cooling rate of 50 C./sec. and stretched biaxially at 80 C. to 6-fold size to produce a transparent tough film. In Example 3 the extruded and cooled sheet of Example 2 is pressed with a mould shaped as a flowerpatterned fruit dish and is subsequently heattreated at 130 C. for 30 minutes to effect disappearance of the X-ray pattern and to obtain a hard plastic dish.
Patent GB-1012596-A (GB)
Title: Garages
IPC: E04H6/06
Filed: 1964-01-30
Abstract: 1,012,596. Mechanical garages; garage lifts. F. SCHILLIER. Jan. 30, 1964, No. 4067/64. Headings B8E and B8H.  A garage consists of an upper vehicle - parking storey at or above ground level and an associated movable platform mounted between a pair of parallel guides, the space between the guides providing direct access to a lower storeywhich is not necessarily used for parking vehicles. In Fig. 4, the platform is a trolley 38 movable by winch and cable up guide rails 37 and on to rails 36 in the above ground compartment of a two storey garage. The lower storey is directly accessible via a fixed ramp 22. The trolley 38 and the ceiling 57 of the lower storey may have apertures 43, 60 respectively to allow for access to the underside of a vehicle 23 in the upper storey. In Fig. 5 there are three storeys and therefore two movable platforms. Each such platform comprises a set of slats 25 bridging the guides 62 or 65 and connected together in a chain whose links run in the guides and are driven by sprockets 34. This type of platform may also be applied to a two-storey garage (Fig. 2, not shown).  In Fig. 1 (not shown), the movable platform of a two-storey garage comprises a roller-shutter which retracts below the fixed floor of the upper storey and which, when extended into position between the sloping guides provides a ramp up which a vehicle can be driven under its own power.