baber/WOPTO huggingface dataset:
Patent GB-770298-A (GB)
Title: Improvements in and relating to reinforced concrete structures and structural members
IPC: E04C1/41
Filed: 1954-03-02
Abstract: 770,298. Floors; roofs; beams. STRUCTURAL CONCRETE COMPONENTS, Ltd., and SAINTY, C. L. Nov. 1, 1954 [March 2, 1954], No. 6057/54. Class 20(4) A structure, or a structural member such as a beam, for resisting bending loads, has the part 1 containing tension reinforcement 3 and lying below the neutral axis formed from light weight concrete adapted to carry a substantial proportion of the tension and such that the ratio between its modulus of rupture and its modulus of elasticity is substantially greater, e.g. from four to six times, than that of dense concrete, and the part 2 lying on the other side of the neutral axis formed from a denser concrete. As shown applied to a beam which may be laid side by side with similar beams to form a floor or roof, the concrete in part 1 comprises expanded clay aggregate and expanded vermiculite with which may be added mineral fibrous material or a binding emulsion to increase the tensile strength and the reinforcements 3 are as described in Specification 720,615. The part 2 is of normal concrete mixed with light reinforcement rods 4 to protect the beam during handling. In a modification the part 2 is of lightweight concrete of a denser type than that in part 1. The beams forming a floor or roof may be covered with a finishing screed which may be bonded to the beam as described in Specification 743,391 and in a further form this screed may form the part 2 of the structure the part 1 being formed by beams solely of lightweight concrete.
Patent GB-1155678-A (GB)
Title: Secondary Slave Control for Series-Connected Gate Controlled Switches
IPC: H03K17/73
Filed: 1968-02-08
Abstract: 1,155,678. Thyristor circuits. WESTING- HOUSE ELECTRIC CORP. 8 Feb., 1968 [24 Feb., 1967], No. 6207/68. Heading H3T. In a series-connected arrangement of modules I, II each containing a plurality of thyristors 14 ... 20; 22 ... 28 the master thyristor 14 of module I is arranged to be triggered first, capacitors 36, 42, 48 being provided between the cathode of each thyristor and the gate of the next succeeding thyristor so that thyristors 16, 18, 20 are triggered in sequence. When thyristor 14 is triggered, capacitor 56 discharges via the gate of master thyristor 22 into capacitor 88 via the gate-cathode paths of thyristors 20 and 18 (acting as Zener diodes), components 46, 50, 48, 40, 44, 42 and the main paths of thyristors 14 and 16. Other capacitors 64, 70, 76 ensure that the corresponding thyristors of the two modules are triggered in sequence at the same time. The thyristors are preferably of the gate-turn-off type and used to switch a D.C. supply 12 to a load 10. The circuit is turned off sequentially by action of the slavecoupling capacitors when a turn off pulse is applied at terminal 30. The relative values of the components are specified.
Patent GB-655939-A (GB)
Title: An improved method and apparatus for tying bales
IPC: B65B27/12
Filed: 1947-03-05
Abstract: 655,939. Baling-presses. COOPER, G. W., and COOPER, S. W. March 5, 1947, No. 6233. [Class 94(i)] [Also in Group I] A needle for use in sewing bands around bales of hay or the like comprises a tapered point 1 on a stem 2 having adjacent to the taper a recess 3 and a catch-plate 6 pivoted in said recess, which catch-plate is displaced to a position in which the open end of the recess is closed when string or like binding material enters the recess. As shown, the needle is used for tying two bands on a bale and comprises two stems joined at their rear ends and braced by a bar 11. The needle which is used by hand is inserted horizontally between two bales and draws string which hooks in the recess 3 in the form of a loop from one side of the material to the other. The loop is then severed and tied to the free end of string left from a previous operation.
Patent GB-964738-A (GB)
Title: Printing plate
IPC: B29C70/34
Filed: 1962-02-19
Abstract: 964,738. Laminates. B. F. GOODRICH CO. Feb. 19, 1962 [Feb. 23, 1961], No. 6318/62. Heading B5N. [Also in Division B6] A laminate suitable for use as a printing plate comprises an elastomeric facing layer 11 carrying a printing design (not shown), a backing layer 13 of elastomeric material, and a dimensionally stable fabric reinforcement 12 interposed between said facing layer 11 and the backing layer 13, the layer 13 having a higher modulus of elasticity than the layer 11 and the layers 11 and 13 and the reinforcement 12 being moulded into an integral structure. The fabric reinforcement 12 may be of polyester, nylon, acrylic, or glass fibres and may be impregnated with a neoprene rubber composition and dipped into a neoprene latex adhesive composition. The backing layer 13 which may comprise a butadiene-acrylonitrile composition is calendered on to one face of the fabric reinforcement 12 and located in a mould. A facing layer 11 comprising a natural rubber composition is then placed in contact with the reinforcement and the mould is closed and heated to 307 ‹ F. at a pressure of 450 pounds per sq. inch. The backing layer may be of a natural rubber composition provided its modulus of elasticity is higher than that of the facing layer. Because of the higher modulus of elasticity of the layer 13 the laminate curls around said layer.
Patent GB-798633-A (GB)
Title: Aspirin
Inventor: SPIVEY ARTHUR MARSHALL
IPC: C07C65/05
Filed: 1956-02-29
Abstract: Aspirin is crystallized from acetone at a maximum solution temperature below 45 DEG  C.  Preferably the aspirin is dissolved in acetone at 40 DEG  C. and the solution is cooled for supersaturation and crystallization to a temperature of from 10 DEG  to 25 DEG  C. The process may be conducted as a batch process or as a continuous process and the build up of impurities in the mother liquor is advantageously controlled by replacing a minor proportion of the mother liquor by fresh acetone.  It is stated that the aspirin so produced has a free salicylic acid content of not more than 0.02 per cent by weight and that after storage at 72 DEG  C. for 24 hours and 96 hours this content does not exceed 0.03 per cent and 0.035 per cent respectively and may be lower than 0.025 per cent and 0.03 per cent respectively.  In examples: (1) aspirin (prepared by the acetylation of salicylic acid with acetic anhydride and acetic acid) containing 0.017 per cent free salicylic acid is dissolved in acetone at 40 DEG  C., the solution is cooled over 6 hours to 10 DEG  C., a seed crystal being added at 34 DEG  C., and aspirin is centrifuged off, washed with acetone and dried, giving a product containing 0.003 per cent salicylic acid, the mother liquors being reused in a fresh cycle after replacement of 10 per cent thereof by the acetone wash liquor and fresh acetone; (2) the process of the invention is conducted in a continuous crystallizer, a saturated solution of aspirin in acetone at 36 DEG  C. being fed to a stream of a similar solution at 25 DEG  C. being continuously circulated through a supersaturator; the solution stream leaving the supersaturator at 25 DEG  C. passes to a crystallization chamber from which crystallized aspirin is withdrawn and the mother liquor is mixed with solution from the dissolver and recycled to the supersaturator.
Patent GB-310139-A (GB)
Title: Improvements in or relating to boxes, or cases for powdered material
IPC: A45D33/00
Filed: 1928-11-28
Abstract: 310,139. Jackson, S. Nov. 28, 1928. Fittings, internal; lids.-A box or case for powder and a puff comprises an inner receptacle for the powder and a hinged tray constituting a receptacle for the puff and a lid for the powder receptacle when its original paper closure has been torn away. As shown the inner powder receptacle 1 is disposed in a flanged casing 3 inserted in the box 6 provided with a removable lid 7 which covers the puff 8 disposed in the tray 9 hinged at 10 to the box and provided with a lifting tab 11. The original paper closure 5 of the receptacle 1 is adhesively secured to the flange 4 of the casing 3 and the tray, when closed, bears on the flange. A mirror 12 may be secured to the underside of the tray which may also be provided with one or more compartments for a lipstick, rouge. &c.
Patent GB-563336-A (GB)
Title: Improvements relating to automatic safety device for doors and windows
IPC: E06B7/36
Filed: 1943-04-21
Abstract: 563,336. Doors and windows. RUSCHI, J. B. A. E. DE, and RUSCHI, A. L. V. DE. April 21, 1943, No. 6394. [Class 20 (iii)] To prevent fingers being caught between the free edge of a closing door or window and the jamb, a rotatably sliding member is mounted in the jamb and recedes as the door or window is closed, but which, when the door or window is open, projects over the jamb and prevents fingers contacting the actual jamb. As shown, the member comprises a semi-cylindrical shield 36, having a tangential extension 37, rotatably mounted in a casing 28, 29 secured to the jamb and projecting therethrough. A cylindrical member 25 secured about the pivot of the door operates pinions 26 in opening and closing. These pinions engage teeth at one end of racks 39 which have oppositely directed teeth at their other ends to engage pinions 38 associated with the guard member, whereby movements of the door are communicated appropriately to the guard. The racks are housed in casings above and below the door. The drawings show the door fully closed, fully open and partly open respectively. Means other than racks and pinions may be used for connecting the hinge to the guard. Casings 14, 15, 18, 19 at the hinged side of the door co-operate with the cylinder 25 to prevent fingers being caught at that side of the door.
Patent GB-192626-A (GB)
Title: Improvements in apparatus employed in the preparation of curled yarns
IPC: D01H5/36
Filed: 1922-03-04
Abstract: 192,626. Sykes, H. F. March 4, 1922. Yarns, curling; fibres, curling.-In dividing and untwisting the strands of rope formed in the production of curled yarns, the yarns pass about a yielding separating member h, which, in the event of the drawing-off rate of the rollers b, c, d exceeding the untwisting rate, is caused to move, against the action of a weight k or a spring, to effect the stoppage of the drawing off until the necessary untwisting has been effected, when the drawing-off is automatically resumed. A slotted bar i, connected to an extension h<2> of the member h has a wedge end, Fig. 3, engaging a head j<1> on a spindle j which operates either a clutch in the drive of the roller b or the belt-shifting mechan. ism of a fast-and-loose pulley drive. A hook n engaging a cross member o may be used to hold the apparatus stopped during the winding of a supply of yarn on the rotating spindle.
Patent GB-737906-A (GB)
Title: Improvements in or relating to time-checking apparatus
IPC: G07C1/32
Filed: 1953-03-10
Abstract: 737,906. Watches. McCLEAN, H. March 10, 1954 [March 10, 1953], No. 6526/53. Class 139. [Also in Group XIX] A watch 13 is combined with time-checking apparatus (see Group XIX) being mounted on a pivoted plate 14 which can be swung up to facilitate winding and setting. The watch is stopped by a spring 34 upstanding from a plate 31 pivoted at 32 to the watch case 16 and bearing frictionally on the rim of the balance wheel 36. When the plate 31 is rocked the spring 34 moves in a slot in the casing 16 imparting a turning movement to the balance wheel 36 before moving clear thereof.
Patent GB-1164533-A (GB)
Title: Improvements in and relating to the Manufacture of Electric Switches
Inventor: ZOLLMAN PETER MARTIN
IPC: H01H11/00
Filed: 1967-02-10
Abstract: 1,164,533. Electromagnetic reed relays. BADALEX (WEYBRIDGE) Ltd. 10 May, 1968 [10 Feb., 1967], No. 6584/67. Heading H1N. The manufacture of a sealed magnetic reed contact unit includes the steps of (a) securing the lower reed 12 in jaws 14 with its flattened blade end 12a uppermost, (b) positioning the upper reed 11 with its flattened end in engagement with the end 12a of the lower blade and establishing a magnetic field (H = h) to support the upper reed 11 on the lower reed 12, (c) aligning the reeds 11, 12 by means of two laterally reciprocating and radially withdrawable fingers 15, 16 having lower portions 15a, 16a which pat the sides of the blade portions and upper portions 15b, 16b which engage the upper end of reed 11, (d) threading a glass tube 17 over the reeds to be clamped in jaws 18, (e) sealing the tube 17 to the reed 11, (f) removing the magnetic field and moving the jaws 14 to set the contact gap between the reeds, (g) and sealing the tube 17 to the reed 12 at 22. The sealing operations may be carried out in an enclosure filled with an inert gas or gas at reduced pressure and the sealing can be effected by an infra-red beam. The Specification describes an assembly machine (Figs. 4 to 8, not shown) for the above sequence of operations and having a motor driven-multiple cam shaft drive mechanism, and a movable pressure chamber for the final sealing operations.
Patent GB-1207086-A (GB)
Title: Golf swing practice device
Inventor: MARK JOSEPH A
IPC: A63B69/36
Filed: 1969-02-06
Abstract: 1,207,086. Golf swing practice device. J. A. MARK. 6 Feb., 1969. No. 6599/69. Heading A6D. A golf swing practice device 10 (Figs. 1 to 3) comprises a box 112 on which the user 14 stands and an inclined platform 16 for supporting back and fore swing track members 18 and 20 respectively hingedly connected to the platform 12 and supported in a number of inclinations by upright braces 22 connectable at their lower ends to a pair of adjustment brackets 24 secured to platform 12. Backswing trade 18 is mounted on platform 16 by support members 27 of equal length and foreswing track 20 is mounted on platform 16 by support members 34 between track 18 and user 14. 'It is also mounted closer to platform 16 than is track 20 throughout most of its length. Track 20 is joined at its upper end to the upper end of track 18 at 28. The lower ends of tracks 18, 20 merge in a Y-connection 30 which permits access to track 18 and egress from track 20 at common track end 32. As shown in Fig. 3, the track 20 is mounted behind the plane of the track 18 but generally in a plane which intersects the plane of the track 18 along a line of intersection extending from the user's left shoulder to the ball location 52, i.e. along string 56 used to determine the correct elevation of platform 16 (Fig. 1). The club is thereby guided into the correct "grooved" swing. Each of the tracks 18, 20 is provided with club guiding means which desirably releasably attaches the club to the tracks. One form of such guiding means includes grooves 44 and 46 (Fig. 4) in track 18 and 20 which grooves merge at the curve 48 at the upper junction of the tracks and at the Y-intersection 30 at the lower junction 32 of the track. The club head 64 is provided with a connective stud 66 threaded into the heel of the club head and the outer end of the stud terminates in ball 68 fitted in socket 70 therefor. A discoid slot guide 72 is linked through its connecting stud 74 to the ball socket 70 so that the guide 72 can ride freely within the slots 44 and 46. As the practice club 62 and slot guide 72 are moved upwardly by the user along back swing track 18 (as shown in chain outline in Fig. 2) the slot guide is guided into the slot 44 of the track 18 and travels upwards along the track. At the upper limit of the backswing (as shown in continuous outline in Fig. 2) the club 62 and guide 72 are guided from the slot 44 of the track 18 into the upper end of the slot 46 of the foreswing track 20. The club 62 follows track 20 until the club reaches the ball impact position 76 and the travel of the club continues in the follow through portion of the golf swing. Alternative means are described for causing the club head to follow the tracks 18 and 20. Means are described for extending the lengths of the upper portions of the track to accommodate differing lengths of back swing.
Patent GB-764796-A (GB)
Title: Method of, and apparatus for, evacuating and closing filled bags
IPC: B65B31/06
Filed: 1955-03-07
Abstract: 764,796. Packaging. HESSER MASCHINENFABRIK-AKT.-GES. March 7, 1955 [March 5, 1954], No. 6615/55. Class 94(1). A bag filling machine comprises means to partly heat seal the filled bag mouth, leaving an aperture, and means to insert a suction tube into the aperture to evacuate the bag, the nozzle being withdrawn simultaneously with complete heat sealing of the bag. The bags 3 on an intermittent conveyer 2 are filled by known means F 1 , F 2  and each passed to a station I where a mandrel 6 enters the mouth and heated presser jaws 4, 5 seal the mouth about the mandrel. The mandrel withdraws leaving an aperture 7 into which enters at station II one of a series of suction tubes 9 carried on the conveyer sprocket wheel 8. Rubber jaws 11, 12 press the mouth about the tube and evacuation, and if desired, later insertion of preservative gas, and possibly re-evacuation, takes place as the bag passes round the sprocket. The tube 9 is then withdrawn with simultaneous permanent sealing of the bag mouth by heated jaws 15, 16 at station III. At station IV further sealing jaws close the remainder of the gap caused by the aperture 7, and at station V-VIII, the bag mouth 19 is secured to the bag top, being first. folded over as in Fig. 5, the margins turned in, Fig. 6, and the projecting portion folded over once or twice and secured flat against the remainder of the bag closure. Specification 749,897 is referred to.
Patent GB-540380-A (GB)
Title: Improvements in fire box arch construction of locomotive type boilers
IPC: F22B13/14
Filed: 1940-04-12
Abstract: 540,380. Making steam generators. AMERICAN ARCH CO. April 12, 1940, No. 6652. Convention date, Oct. 14, 1939. [Classes 83 (ii) and 83 (iv)] [Also in Groups XII and XIII] Uniting by fusion.-In a locomotive firebox a refractory arch is supported on spaced inverted T-shape tubes 52 communicating with the water spaces at the sides and top of the firebox. The tubes 52 are formed in two parts welded together. As shown in Fig. 11, a tube which forms the branches 52a, 52b, is cut transversely across to approximately half its diameter. From the transverse slot thus made the side walls of the tube are slotted longitudinally to provide two tongues 68 which are bent upwardly. The remaining portion of the tube below the tongue is bulged outwardly. The riser portion 52c is of larger diameter than the branches and is cut away at one end to form at opposite sides projections or tabs 72 of generally triangular form to fit into the spaces formed between the tongues 68. The parts of the tube are secured by welding. Specification 525,856, [Group XII], is referred to.
Patent GB-512307-A (GB)
Title: Improvements in or relating to screw and nut elements
IPC: E21B17/042
Filed: 1939-03-01
Abstract: 512,307. Percussive drills. HOLMAN BROS., Ltd., and COCK, B. March 1. 1939, No. 6686. [Class 124] [Also in Group XXV] Screw and nut elements, particularly for use in percussive drills, have a thread with a long face at a small inclination to the axis, and a short face with a steep inclination. As shown, applied to a chuck 3 and chuck driver 4 for rock drills, long faces 5, 10 are provided on the thread with short faces at approximately a right angle thereto. With the end 4a of the driver bearing against a shoulder 3a on the chuck the long faces of the threads take the strain and a locking action results. The apex of the threads may be flattened.
Patent GB-1456730-A (GB)
Title: Water-insoluble monoazomethine pigments
IPC: C08L77/00
Filed: 1974-02-14
Abstract: 1456730 Monoazomethine pigments HOECHST AG 14 Feb 1974 [15 Feb 1973] 6722/74 Heading C4P A monoazomethine pigment has the formula wherein Ar represents an otherwise optionally substituted aromatic or heterocyclic radical substituted by one or more of the same or different substituents selected from substituted sulphonic acid amide groups, unsubstituted and substituted carboxylic acid amide groups, unsubstituted and substituted acylamino, sulphonylamino or urea, and carboxylic acid ester groups and -NHCO- groups forming part of a ring which may contain one or more of the same or different further hetero atoms, and wherein the benzene nucleus a is unsubstituted or substituted by one or two of the same or different substituents. Ar may be a phenyl, benzimidazolone, indazolone, 2,4-dioxo-quinazoline or 2,3-dioxo-quinoxaline ring system. The pigments are prepared by condensing an appropriate amino with a hydroxynaphthaldehyde. They are suitable for colouring printing pastes and a variety of high-molecular organic substances, e.g. cellulose ethers and esters, polyamides, polyurethanes, polyesters, acetyl and nitrocellulose, amino plastics, phenoplastics, polycarbonates, polyolefins, polyvinylchloride, polyacrylonitrile, polyacrylic acid esters, rubber, casein and silicone resins.
Patent GB-867495-A (GB)
Title: Improvements in or relating to the use of expanded polystyrene as a joint filler
IPC: E04B1/68
Filed: 1959-02-26
Abstract: An elastic material consists of expanded polystyrene which has undergone sufficient pressure to crush the cellular structure.ALSO:An elastic material consists of expanded polystyrene which has undergone sufficient pressure to crush the cellular structure.
Patent GB-1061062-A (GB)
Title: Photographic stabilising composition
IPC: G03C5/38
Filed: 1964-02-18
Abstract: 1,061,062. Stabilizing solutions. FUJI SHASHIN FILM KABUSHIKI KAISHA. Feb. 18, 1964 [Feb. 18, 1963], No. 6808/64. Heading G2C. A composition for stabilizing a developed photo-sensitive silver halide material, comprises a solution containing a silver complex saltforming thiocyanate e. g. ammonium thiocyanate; an alkali metal or ammonium sulphite, bisulphite or pyrosulphite; boric acid; and a water-soluble borate e.g. borax or sodium metaborate. The composition may also contain a salt of the metals, Zn, Co, Cd, Ni or Au and an additional compound capable of reducing fading selected from is a substituted or unsubstituted heterocyclic group such as a imidazolyl, benzimidazolyl, thiazolyl, benzothiazolyl, oxazolyl, benzoxazolyl, triazolyl, thiadiazolyl, oxadiazolyl, 5-tetrazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyradazinyl, triazinyl or thiadiazinyl group or a fused ring system containing such a group e.g. 2-mercaptobenzimidazole, 5-carbethoxy-2-mercapto-4- methylthiazole, 2-mercaptobenzothiazole, 2- mercapto-oxazoline, 2-mercapto benzoxazole and 2-mercapto-5-methyl-oxadiazole (2) a compound of formula: - in which X and Y are hydrogen, hydroxyl, alkoxy, amino, dialkylamino, carboxyl, carbalkoxy, thiol, sulpho, halogen, alkyl, aryl or a heterocyclic group and p, q and r are 0-2 the sum of p, q and r being greater than 0 e. g. 1-thioglycerol, 2- mercapto ethyl-chloride, 2-diethylamino -1- mercapto ethylchloride, thioglycollic acid and 2-mercapto propionic acid (3) a compound of formula in which R and R' are H, alkyl, hydroxyl, amino, alkoxy, thiol, alkylaminocarboxyl, carboalkoxy, sulpho or halogen e.g. 4-thiocresol, thiosalicylic acid, 1, 3-dimercapto benzene, 8-mercaptoquinoline and o-chlorothio phenol. (4) a compound of formula: - wherein R is alkyl, aryl, alkaryl, aralkyl or a heterocyclic group and M represents H, Na, K or NH4+ e.g. sodium ethyl thiosulphonate, sodium phenyl thiosulphonate and sodium ptoluene thio-sulphonate. (5) a compound of formula: - wherein R1 - R4 are H, alkyl, aryl, aralkyl, acyl or a heterocyclic group or R1 and R3 together represent an alkylene group; and X is S or Se. e.g. N-methylthiourea, N, N'-dimethyl thiourea, N, N'-ethylene-thiourea, N-acetyl thiourea, N- ethyl-N', N'-diethyl thiourea, N-(2-thiazolyl)- N' arylthiourea, N-(2-pyridyl)-N'-phenyl thiourea and N,N'-dicyclohexyl selenourea and (6) compounds of the formula: - wherein R1 - R4 are H1 alkyl aryl or aralkyl and R1' and R2' are H, alkyl or aryl e.g. thiosemicarbazide, 1-phenyl-thiosemicarbazide, 4- ethylthio semicarbazide, acetone thiosemicarbazone and benzaldehyde thiosemicarbazone.