baber/WOPTO huggingface dataset:
Patent GB-455307-A (GB)
Title: Improvements relating to classifying apparatus for postal matter
IPC: B07C1/12
Filed: 1935-04-18
Abstract: 455,307. Separating solid materials. SOVEX, Ltd., Bear Gardens, Southwark, London, KNIGHT, A. J., 35, Brookrnead Avenue, Bickley, Kent, and CADMAN, H. W., 292, Avery Hill Road, Eltham, London. April 18, 1935, Nos. 12003 and 31534. [Class 117] An apparatus for segregating letters from an assemblage of letters and parcels comprises a trough-like formation of parallel or approximately parallel rollers 1, between which are gaps sufficient for the passage of a letter but insufficient for the passage of a parcel, the rollers being rotated either all in the same direction or outwardly from an intermediate point towards the two sides of the trough. The letters and parcels are delivered to the trough by a conveyer or shoot 4. Rollers 2 are set inwardly at the upper parts of the trough to prevent postal matter from being discharged over the sides. Letters pass through the gaps 3 and parcels may be removed either periodically, if the trough ends are closed, or continuously, by providing a shoot 8 at one end in which case parcels are fed to the shoot either by helical ribs 9 on the rollers, or by inclining smooth or helical ribbed rollers downwards towards the shoot. The letters are received by a conveyer 5. The rollers may be tapered or stepped, or their axes may be disposed slightly inclined towards each other, so that the gaps increase in width along the length of the rollers.
Patent GB-1529852-A (GB)
Title: 8-azaprostaglandins and process for the preparation thereof
IPC: A61K31/4015
Filed: 1975-03-21
Abstract: 1529852 8-Azaprostaglandins LABAZ 11 March 1976 [21 March 1975] 12034/75 Headings C2C and C2P The invention comprises 8-azaprostaglandins of the Formula I wherein R is H, methyl or ethyl and their preparation by standard methods. The following intermediates are also prepared: silver methyl suberate, 1-chloro-2-heptanone, ethyl DL-pyroglutamate DL-6-hydroxymethyl - 2 - pyrrolidinone, and its 2 - tetrahydropyranyl ether; methyl and ethyl 2-hydroxymethyl - 5 - oxo - 1 - pyrrolidineheptanoate and its 2 - tetrahydropyranyl ether; ethyl and methyl 2 - formyl - 5 - oxo - 1 - pyrrolidineheptanoate; methyl and ethyl 2 - (3 - oxo - -trans- 1 - octenyl) - 5 - oxo - 1 - pyrrolidineheptanoate; diethyl (5 - acetoxypentyl)malonate; 7 - bromoheptanoic acid and its methyl and ethyl esters; and ethyl 3-oxooctanoate. (2 - Oxoheptylidene)triphenylphosphorane is prepared by reacting potassium carbonate with (2 - oxoheptyl)triphenylphosphonium chloride obtained by reacting triphenyl phosphine with 1-chloro-2-heptanone. Pharmaceutical compositions contain the 8- azaprostaglandins of Formula I above in association with non-toxic carriers or excipients therefor. The compounds possess similar pharmacological properties to those of PGE.
Patent GB-927299-A (GB)
Title: Improvements relating to liquid flow indicators
Inventor: WORTH HARVEY
IPC: G01P13/00
Filed: 1961-04-05
Abstract: 927,299. Bearings. FERRANTI Ltd. March 26, 1962 [April 5, 1961], No. 12095/61. Class 12 (1). [Also in Group XXIX] A spindle 5 of a flap which is deflected by liquid to give an indication of flow (see Group XXIX) is pivoted in bearings comprising a stainless steel annulus 7 containing a thin nylon bush 8 of which the central aperture has three interruptions 9 whereby build-up of sludge is avoided.
Patent GB-1024111-A (GB)
Title: Improvements in or relating to multi-compartment bags
Inventor: GOMM ALBERT FRANK
IPC: B65D30/22
Filed: 1963-03-27
Abstract: 1,024,111. Multi-compartment bags. JOHN DICKENSON & CO. Ltd. March 24, 1964 [March 27, 1963], No. 12141/63. Heading B8K. [Also in Division A4] A flat multi-compartment bag made from thin preferably transparent flexible sheet material comprises a tubular structure folded in two or more parts, each part compartmented with openings adjacent a fold line. The bag is formed from a rectilinear strip of transparent fibre welded at 14, 15, 16, 17 or from seamless tubing welded transversely and slit longitudinally. The compartments may be closed by heat sealing or by a strip of pressure-sensitive adhesive tape, after the contents (e.g. postcards) have been inserted. The welded flap 21 may be omitted. In another embodiment the bag is made by uniting multiple webs along their side edges and transverse seams. One edge of the bag may be reinforced and have holes punched therein to suspend it for display purposes.
Patent GB-581866-A (GB)
Title: Improvements in or relating to driving and power transmission mechanism for cycles
IPC: B62M9/00
Filed: 1944-06-27
Abstract: 581,866. Mounting engines on cycles. BIRMINGHAM 'SMALL ARMS CO., Ltd., and STOHANZL, V. J. June 27, 1944, No. 12177. [Classes 79 (ii) and 79 (iii)] [Also in Group XXVII] A cycle has movably mounted on it an internal-combustion engine 7 driving an eccentric 23 connected by a tension member 29 to the driving member 33 of a one way clutch and the driven member 35 of the clutch is connected to the rear wheel hub of the cycle. The arrangement is adapted to be mounted on an ordinary pedal cycle, the engine being used on hills or when more than normal effort is needed to impart impulses to the rear wheel to assist the rider. The engine is slidably mounted by means of a lug 5 integral with its crank case on a bracket 1 attached to the forward end of the rear forks 3. A spring 9 mounted at one end on the down tube 11 is connected at its other end to the engine. The eccentric 23 is mounted on the engine crank shaft and the strap 25 of the eccentric is connected to a tension wire 29 which at the rear end is attached to the driving member 33. Also attached to the driving member is a spring 43 mounted on the rear fork member 3. To start the engine it is moved by any convenient control so that a flywheel 15 engages the tyre of the rear wheel. When the engine starts the tension member reciprocates and as it moves to the left it turns the driving member against the action of the spring 43. On the return movement of the tension member the spring moves the driving member and at the same time imparts an impulse to the rear driving wheel through the medium of friction balls 37 of the clutch and so assists in driving the cycle.
Patent GB-130448-A (GB)
Title: Improvements in and relating to Double Safety Envelopes.
Inventor: SUSERSKY JOHN
IPC: B65D27/08
Filed: 1918-07-26
Abstract: 130,448. Susersky, J. July 26, 1918. Envelopes.-A double envelope comprises connocted or scored sealing-flaps 2, two pairs of end flaps 4, and bottom flaps 7, the end flaps being slit at 5 to form tongues 6, and the bottom flaps 7 being folded so that their edge portions lie between the flaps 4 and the tongues 6.
Patent GB-1092181-A (GB)
Title: Process for the production of helium and neon from fractionation of air into nitrogen and oxygen
Inventor: KOBELT GUNTER
IPC: F25J3/04
Filed: 1965-03-23
Abstract: 1,092,181. Air separation process. LEUNAWERKE "WALTER ULBRIGHT" VEB. March 23, 1965, No. 12225/65. Heading F4P. In a process for separating helium and neon from atmospheric air containing a variable hydrogen content wherein the inert gases are withdrawn from a conventional air rectification column and transferred to a further rectification column in which residual nitrogen and oxygen are condensed and helium and neon is distilled off, the quantity of said withdrawal is regulated so that its thermal conductivity does not exceed 0À02319 k. cal/m.h.  C.; the hydrogen content of said withdrawn gas being separated by conventional catalytic combustion apparatus.
Patent GB-418520-A (GB)
Title: An improved reinforced concrete floor
IPC: E04B5/40
Filed: 1933-04-27
Abstract: 418,520. Reinforced-concrete floors. CONNIES, S., 120, Marlborough Road, Cardiff. April 27, 1933, No. 12237. [Class 20 (iv).] Reinforced-concrete floors are moulded upon corrugated metal sheets 3 which are carried between the lower flanges of spaced filler joists 1 extending between main girders 2, and are adapted to accommodate, in the corrugations 4 on their undersides, furring strips 5 for securing a lathing 6 for a plaster or other covering. The corrugations are of rectangular form and extend between adjacent pairs of joists 1, and the strips 5 project below the sheet. The strips 5, which are shaped at the ends to fit over the flanges of the joists 1, may be formed of wood, breeze concrete blocks, &c.
Patent GB-636218-A (GB)
Title: Improvements in heated rollers
IPC: D06C15/08
Filed: 1947-05-07
Abstract: 636,218. Hollow rollers. LUKENS STEEL CO. May 7, 1947, No. 12311. Convention date, Jan. 10. [Class 34(i)] A heated roller with outer and inner shells defining a peripheral fluid chamber supported at one end by a trunnion has a pipe rotatable with the roller, one end of the pipe opening into the peripheral chamber and the other extending outwardly through the trunnion. The roller comprises two pieces of sheet metal welded along seams 8, 9 to form two concentric cylindrical shells 4, 5 rotatably supported on trunnions 2, 3. One end of the inner shell 4 is welded to an end plate 18 and the other is welded to a plate 11 which is in fluid-tight relationship to the trunnion 2. The outer shell 5 is also welded to the end plate 18 and at its other end is welded to an end plate 17. The end plates 11, 17 are spaced by studs 22. The end plate 17 has a series of pressed out flange portions 23 which engage against the inner plate 11 and are welded thereto to form closed passages 25 which extend to the peripheral chamber 16. The trunnion 2 is provided with an axial bore 26 for the heating fluid which flows through a port 27 to the peripheral chamber. To remove the steam condensate an arcuate tube 28 having one end opening into the peripheral chamber is connected to a tube 32 which extends into the trunnion 2. The tube 28 rotates with the roller and removes any fluid in the lower portion of the chamber or any air in the upper part.
Patent GB-1039619-A (GB)
Title: Improvements in door sealing means
IPC: E06B7/232
Filed: 1964-03-24
Abstract: 1,039,619. Draught excluders. INTERLOCK FENCING CO. Ltd. March 24, 1964 [April 1, 1963; Dec. 17, 1963], No. 12340/64. Heading E1J. A draught excluder for closing the gap between the bottom of a door 34 and the door tread comprises a metal flap 12 of U-section of sufficient width to pass under the door and up each side to form front and back edge covers and being spring mounted or hinged by means e.g. of a U-spring 17 to the back of the door and a lug 20 at the longitudinal centre of the flap for engagement by a tread ramp 23, Fig. 8, to cause, on closing the door, the flap to tip its front end 11 and contact the tread 35. The tread ramp 23 slopes down outwardly so that water will run to the exterior of the building and the flap likewise slopes in the same direction and has drain holes 14 at the bottom of the front edge. As the door opens to the right in Fig. 8, the flap rides up the ramp and is held clear of the tread by the spring 13. The spring 13 may be an inverted U or an N-shape. A rubber or plastic strip 21 is secured to and extends the length of the flap on the underside or on the front of the flap as shown at 31 in Fig. 14. In this latter modified embodiment, a tongue 32 of the flap engages with an angle piece 33 on the rebated door jamb to cause the flap to lower when the door is closed.
Patent GB-1500795-A (GB)
Title: Method of altering film material for photosetting
IPC: B41B23/04
Filed: 1975-03-25
Abstract: 1500795 Correcting films H BERTHOLD AG 25 March 1975 [11 July 1974] 12362/75 Heading G2X A film for photosetting is corrected by projection printing a first image containing film in which the incorrect areas are covered with a red colouration on to a second radiation sensitive film so that the incorrect areas are not reproduced; projection printing a third film containing only the corrected parts of the image on to the second film and finally developing the second film to produce the complete corrected image. The red colouration is opaque to the short wavelength region but transparent to the long wavelength region of visible light and is produced either with red ink e.g. using a felt pen, or by covering the incorrect areas with red transparent foil, Fig. 2. The exposure is made using light of short wavelength. The third film may contain several corrected parts of the image and is masked e.g. using red transparent masks, so that only one correction is light transmissive e.g. 'd-automated'. Fig. 3. The first and third films are aligned so that the correction overlies the incorrect area, the first film is removed and the third film projection printed on to the second film. A similar sequence is carried out for all the other corrections.
Patent GB-580312-A (GB)
Title: Improvement in optical devices and methods of making same
IPC: G02B3/04
Filed: 1944-06-29
Abstract: 580,312. Grinding &c. lenses &c. TRIGGS, W. W. (Alncin, Inc.). June 29, 1944, No. 12392. [Class 60] Lenses &c. are ground &c. by rotating a blank in contact with an abrasive wheel which rotates about an axis parallel with and offset from the axis of rotation of the blank and has an abrasive surface which in section is profiled to the finished surface on one side only of the axis of symmetry of the work. The blank 10 is mounted on a pad 12 and rotated by a shaft 14. The grinding-wheel 20 is rotated by a shaft 28 and comprises an annulus carried by a backing 22, the profile being such that the line of contact with the blank extends outwards from the axis of the blank. The lenses may be polished in an apparatus comprising several shafts 14 arranged at different radial positions round the wheel 20.
Patent GB-492974-A (GB)
Title: Improvements in or relating to packing cases or containers
IPC: B65D5/50
Filed: 1937-04-30
Abstract: 492,974. Packing-cases &c. THOMPSON & NORRIS MANUFACTURING CO., Ltd., and MINCH, H. April 30, 1937, No. 12421. [Class 18] A corrugated fibreboard packing case or container, e.g. for radio sets, is provided with corrugated fibreboard &c. buffers I for retaining the contents in position, trays D containing these buffers being fitted in the ends of the container A, after which end flaps B, C are folded over. The trays may themselves be of corrugated fibre and the buffers may be formed by bending sheets of the material. Handholes L may be provided.
Patent GB-219757-A (GB)
Title: Improvements in machines for washing, boiling and rinsing clothes or similar articles
IPC: D06F21/04
Filed: 1923-05-09
Abstract: 219,757. Bradford, W. L. May 9, 1923. Washing - machines with enclosed rotary receptacles. - The clothes drum has its periphery B constructed in one piece, the perforated hollow lifters A being riveted to the drum at intervals and a series of holes C in the periphery giving the liquid access to the interior of the lifter from outside the drum. Reference has been directed by the Comptroller to Specifications 4188/87, 19769/93, and 24133/93.
Patent GB-1240804-A (GB)
Title: Amidic colour couplers for use in colour photographic materials
Inventor: CREDNER HANS-HEINRICH
IPC: G03C7/34
Filed: 1970-03-17
Abstract: 1,240,804. Amides. AGFA-GEVAERT A.G. 17 March, 1970 [28 March, 1969], No. 12730/70. Heading C2C. [Also in Division G2] The invention comprises compounds of the formula where R 1  is H or alkyl of 1-3 carbon atoms, R 2  is H, Cl or straight or branched alkyl, R 3  is straight or branched alkyl, the total chain length of R 2  and R 3  being at least 8 carbon atoms, and n is 0-2. The compounds are prepared by condensing an aminophenol with a chlorophenoxycarboxylic acid or a reactive derivative thereof, e.g. an acid chloride.
Patent GB-704555-A (GB)
Title: Improvements relating to the construction of electric motors
Inventor: WILLONER GEORGE
IPC: H02K17/16
Filed: 1951-05-30
Abstract: 704,555. Squirrel cage constructions. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 2, 1952 [May 30, 1951], No. 12740/51. Class 35 In order to improve the starting torque, the cage of an induction motor has end rings embedded in or shrouded by or joined to a magnetic member so as to produce a "deep bar" effect. The cage bars 3 in Fig. 1 are of the inverted T-shaped cross-section having end rings 4 which are shrouded by a plate 5 of magnetic material. In Fig. 3, an end ring 10 is clamped between two plates 11, 12 of magnetic material. The plate 12 may be also used as a shrink ring. The squirrel cage designed according to the invention can be used on the primary or secondary member of an induction motor and also in the poles of a synchronous motor.
Patent GB-629913-A (GB)
Title: Improvements in or relating to rail vehicles and chassis therefor
IPC: B61F5/06
Filed: 1947-05-12
Abstract: 629,913. Rail bogie mountings. CROMPTON PARKINSON, Ltd. May 12, 1947, No. 12824. Convention date, Sept. 4, 1945. [Classes 103 (vi) and 108 (iii)] [Also in Group XXXI] The bolster 11 of a rail vehicle is supported above the bogie frame, 19 in Figs. 5 and 6, or 45 in Fig. 12, by means of two or more springs 13, 14 on each side, all of the springs serving to resist vertical movements between the bolster and frame, and at least one of the springs 12 on each side being rigidly mounted at one end and rockably mounted at the other so as to resist lateral movement between the bolster and frame, whereas other springs 13 are rockably mounted at both ends so as to be bodily displaced and offer substantially no resistance to the lateral movement. The rockable mountings are provided by spring caps 20, 22, 25 having projections pivoting in recesses in the frame or bolster. The springs 12 and 13 may be mounted coaxially as represented by the springs 36 and 38 in the construction of Fig. 8, in which there is also a central multiple rubber element compression spring 46 with its ends mounted between the same caps as for spring 38, the spring 36 having the rigid mounting at its lower end. In the bogie construction shown in Fig. 12, one of the spring units of Fig. 8 is arranged at each side of the king-pin bearing 53.
Patent GB-1390981-A (GB)
Title: Anaerobic digesters
IPC: B01D21/00
Filed: 1972-03-20
Abstract: 1390981 Anaerobic digesters SOC ANON POUR LE COMMERCE ET LES FABRICATIONS INDUSTRIELLES 20 March 1972 [23 March 1971] 12840/72 Heading C1C An anaerobic digester comprises, in one embodiment, separate fermentation acid settling chambers 1, 2 covered with hollow covers 7 made of flexible synthetic material (e.g. butyl rubber), impermeable to fermentation gases. Conduit 3 supplies liquid to chamber 1, pipe 4 discharges purified liquid and conduit 5 discharges settled sludge. Pipe 6 removes fermentation gases which can be used to produce heat to be applied to chamber 1. In another embodiment (Fig. 2, not shown), an annular fermentation chamber surrounds a settling chamber and the chambers are covered by a common cover 7.
Patent GB-304676-A (GB)
Title: An improved process for the manufacture and use of metallurgical carbons
IPC: C01B31/00
Filed: 1928-05-01
Abstract: 304,676. Carbonisation Soc. GÚnÚrale d'Exploitation des Carbones. Jan. 24, 1928, [Convention date]. Addition to 288,551. Composition fuel.-The process for the production of metallurgical carbon of the parent Specification is modified by starting with coked or uncoked lignite, peat or other carbonaceous material which is crushed to small pieces, treated in a bath of caustic soda or potash to remove sulphur, and distilled to drive off tars, the dried treated mass having finally incorporated therewith sodium, potassium, calcium, barium, strontium, or other nitrate or an alkaline borate, alone or in admixture. The proportions are chosen according to the sulphur and phosphorus content of the material to be treated. The distillation may be effected in a stream of nitrogen and water vapour to remove the tarry materials without coking. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use in the impregnation of the carbon of borates generally, or of caustic soda or potash alone or in combination with nitrates. This subject-matter does not appear in the Specification as accepted.
Patent GB-439541-A (GB)
Title: Improvements in bowl-covers for tobacco pipes
IPC: A24F5/10
Filed: 1935-04-30
Abstract: 439,541. Tobacco pipes. SECCOMBE, C. L., 2, Evelyn Mansions, Kew Road, Richmond, Surrey. April 30, 1935, No. 12865. [Class 130] In a bowl cover comprising a perforated disc of mica or similar non-inflammable material a held within a metal or other flanged frame b and within the bowl by a spring wire e, the wire is formed with loops or ears f, f which are passed through slots d, d<1> in the frame and bent as at h, h<1> to grip the bowl. The ears are pressed inwards to release the ends h, h<1> from the bowl. The wire is bent at i opposite the crossing point of the two arms of the wire. In a modification, two half-portions of wire are used, each having an ear at one end. In another form, the ends of the wire, instead of crossing as shown in Fig. 4, are doubled back to form a gap opposite the bent portion i. The frame b may be of synthetic resin. Specification 318,186, [Class 130], is referred to.
Patent GB-423774-A (GB)
Title: Improvements in and relating to insulating and cooling compositions for electric apparatus
IPC: C10M169/00
Filed: 1934-04-28
Abstract: Mineral oil for insulating transformers, capacitors, switches, or other electrical apparatus is preserved during use by the addition of about 0,1--5,0 per cent of a polycarboxylic acid or its anhydride. Maleic anhydride, and maleic, succinic, citric, tartaric, malonic, malic, mucic, and adipic acids are specified. Specification 262,107, [Class 91], is referred to.
Patent GB-1393888-A (GB)
Title: Electrical machines having a liquid metal current transfer  device
IPC: H01R39/64
Filed: 1971-05-04
Abstract: 1393888 Electric machines having liquid current transfer devices INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 4 May 1972 [4 May 1971] 12941/71 Heading H2A [Also in Division F2] In an electrical machine, e.g. a drum type homopolar generator, having a current transfer device employing liquid metal as a current transfer medium between relatively moving parts, one or more fibre screens 3 are attached to one part and brush against the other part in order to confine the metal within the machine. In the embodiment shown, two screens are attached to a brush 1 and engage a rotor 2 to confine the metal to the region therebetween, but in other embodiments they are attached to the stator 4, or to the stator housing (6), Fig. 3, to prevent the metal passing to a shaft bearing (7); alternatively, they may be attached to the rotor. The fibres may be of carbon, or ceramic, may be coated with a conductive metal film, and may be connected to the brush via a high impedance in order to limit fault current arcing.
Patent GB-920529-A (GB)
Title: Improvements relating to imitation leather thong buttons
IPC: A44B1/02
Filed: 1961-04-11
Abstract: 920,529. Buttons. M. J. ELKINS. April 11, 1961, No. 12988/61. Class 43. A method of producing a leather thong button comprises forming a number of strip elements extending outwardly from a common point and folding each strip to form a loop with each strip passing through the folded loop of an adjacent strip to form an interlocking assembly which is thereafter subjected to the action of pressure to form the finished button. The button comprises two strips 23, 24 each with a central incision 25, a filler 28, with a slot and a shank 26 which traverses the slots and has outwardly extending ends. The strips are intertwined over the ends of the shank and over the filler. The ends of the strips are then intertwined on the other side of the filler and subjected to pressure. Alternatively the button may comprise four strips integral with or secured to a central slotted piece or the four strips may be detached and each have an end slot. The shank may comprise a U- shaped piece of metal or a strip of flexible material with enlarged ends, or a loop of a strip slit longitudinally and centially the other part of the slit being folded over.