baber/WOPTO huggingface dataset:
Patent GB-1004627-A (GB)
Title: Improvements in or relating to transverse thrust units for ships
Inventor: BURRILL LENNARD CONSTANTINE
IPC: B63H25/46
Filed: 1963-03-04
Abstract: 1,004,627. Ships' transverse thrust unit. STONE MANGANESE MARINE Ltd. June 4, 1964 [March 4, 1963], No. 8462/63. Heading B7V. In a transverse thrust unit in a ship comprising at least one power-driven propeller or impeller 6 disposed in a tube 1 passing through the ship 2 from side to side, the effective crosssectional area of the tube in way of the propeller or impeller is greater than its effective cross-sectional area at a distance from the propeller or impeller, or either side, towards the end of the tube. After reduction in cross-sectional area the tube may be widened and made bell-mouthed. The crosssection of the tube may be progressively changed from a circular section at 9 to a rectangular section at the bell-mouth 12. The impeller 6 is mounted in a pod 4 supported by struts 5, 8 formed as guide vanes to reduce the rotation of the slipstream.
Patent GB-1522555-A (GB)
Title: Beam splitter
IPC: G02B27/14
Filed: 1976-03-03
Abstract: 1522555 Beam-splitter CROSFIELD ELECTRONICS Ltd 2 March 1977 [3 March 1976] 08517/76 Heading G2J A beam-splitter for producing a plurality of parallel light beams from a single beam comprises a block of stress-free gloss having a pair of elongate parallel sides, a coating 80 on a first parallel side, coating 80 being such as to provide a high internal reflection, and a sucession of areas 86-96 on the other parallel side, each area 86-96 being differently coated so that a beam entering the block at a given angle of incidence undergoes a series of internal reflections between said parallel sides, a part of the beam emerging through each of said areas 86-96 to produce the parallel light beams. The coating on said other side is preferably formed of alternate quarter-wave layers of magnesium fluoride and titanium dioxide, suitable reflectance values for areas 86-96 being 86%, 82À5%, 77À5%, 69%, 52% and 2%. An image reproducing system incorporating such a beam-splitter is disclosed.
Patent GB-1170762-A (GB)
Title: Masonry anchor
Inventor: SUMMERLIN FREDERICK ARTHUR
IPC: F16B13/06
Filed: 1966-02-25
Abstract: 1,170,762. Masonry anchors. AVDEL Ltd. 25 Feb., 1967 [25 Feb., 1966], No. 8531/66. Heading F2H. Masonry anchor comprising a bolt 12, an expander wedge 14a, and a shell comprising two tubular parts 18 and 28 connected to each other by a plurality of skewed struts 21. The wedge is drawn into the shell by rotation of the bolt. As the bolt is tensioned and longitudinal compression is thereby applied between the ends of the shell, the struts initially resist deformation and the wedge expands the adjacent tubular part to lock the anchor in a borehole. With increasing compression, as the bolt is tensioned further, the struts collapse longitudinally by increasing the degree of skew of the struts and decreasing the axial length of the shell without expanding radially. The shell thereby no longer supports any substantial longitudinal thrust. The struts are arranged tangentially to the bolt so as to engage the wall of a borehole and prevent rotation of the anchor as the bolt is initially rotated. The wedge is held against rotation by a projection 14b engageable in a slot 16. In a modification, the end of the bolt member remote from the wedge is threaded to receive a nut for tensioning the bolt member. In another modification (Figs. 12-14, not shown), the bolt member is provided with an extension (41) which is engageable by a pull-gun for tensioning the bolt member, but which breaks off with increasing tension once a tension retaining collar (13c) has been swaged into annular grooves (30) provided on the bolt.
Patent GB-1494254-A (GB)
Title: Liquid phase epitaxial growth
IPC: C30B19/06
Filed: 1975-02-28
Abstract: 1494254 Light-emitting diodes SONY CORP 28 Feb 1975 [1 March 1974] 8531/75 Heading H1K [Also in Division B1] Light emitting diodes are made from epitaxial layers grown on semi-conductor wafers by liquid phase epitaxy in apparatus comprising, as shown in Fig. 1, an air-tight bell jar 2, a vessel 6 for containing a solution 5 of material for liquid phase epitaxial growth-and a holder 4, for holding a number of semi-conductor wafers 3, on which the layer is to be grown, and which can be raised or lowered by attached pipe 11 to place the wafers 3 so that they float on the surface of the solution 5 during growth. The solution can be stirred by rotating shaft 16 which is attached to vessel 6 and heated by means of heater 7. Impurities can be introduced into the bell jar through pipe 11 and openings 10. The growth of P-type layers, using Zn as dopant, of GaP from a solution of Ga/GaP is exemplified. N-type layers can also be grown using P as dopant. Other materials which may be used for the wafers are GaAs, InP, GaAlAs.
Patent GB-165212-A (GB)
Title: Improvements in or relating to freezing machines
IPC: A23G9/18
Filed: 1920-03-24
Abstract: 165,212. Park, T. H. March 24,1920. Solidifying and then removing films.-A machine for freezing ice-cream &c. of the kind comprising a rotary internally-cooled drum A on which the cream &c. is spread in a film, is provided with a detachable scraper E, which may be traversed along the drum by hand or otherwise to deal with the material on any part of the drum surface. The material is supplied from a removable hopper C having an adjustable outlet controlled by a door C' formed with a deflecting lip C<2>, and is spread by a weighted or spring-mounted roller D. The scraper E is slidably and detachably mounted on an adjustable guide-rod F which is narrowed at one part to allow a gapped part of the scraper to pass over it. The material falls into a dished receptacle G having a discharge opening G<1>.
Patent GB-916594-A (GB)
Title: Contact spring set, for example a contact spring set for a code-bar relay selector
IPC: H01H63/33
Filed: 1961-03-09
Abstract: 916,594. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 9, 1961 [March 9, 1960], No. 8732/61. Class 38 (5). Springset e, f is closed only when both actuators a, b are raised together, thereby carrying with them the resilientlymounted disc c which engages the lower spring. If only one actuator is moved the disc c, which is mounted on a spring g, is horizontally displaced and fails to engage the lower spring of the springset.
Patent GB-1024185-A (GB)
Title: Heel dowel construction
IPC: A43B21/36
Filed: 1964-03-02
Abstract: 1,024,185. Heel protectors. NATIONAL LOCK CO. March 2, 1964 [Oct. 18, 1963], No. 8736/64. Heading A3B. A top lift comprises a wearing portion 18 (not shown) moulded on to the end of a shank 14 which has an enlarged cup-shaped head 17 having slots 28 through which the mouldable material passes into the central cavity 27 to form an interlock between the wearing portion 18 and the shank 14. The wearing portion 18 may be a plastics material or a natural or synthetic rubber and completely envelops the cup-shaped head 17. The shank 14 has knurled portions 21, 22 and is forced-fitted into a bore 16 in the heel.
Patent GB-128540-A (GB)
Title: Improvements in or relating to the Transmission of Movement by Flexible Members such as Chains, Cables or the like.
Inventor: CAUDRON RENE
IPC: F16G9/00
Filed: 1919-04-07
Abstract: 128,540. Caudron, R. June 21, 1918, [Convention date]. The part of a control wire or cable c, d for aeroplanes &c. passing through a guide or deflecting-tube a is replaced by a length b of roller chain, the rollers alone contacting with the guide. In the Specification as open to inspection under Sect. 91 (3) (a), roller or like chains are used. This subject-matter does not appear in the Specification as accepted.
Patent GB-857498-A (GB)
Title: Multi-station forming press for forming sliders for sliding clasp fasteners
IPC: B21D53/54
Filed: 1958-03-19
Abstract: 857,498. Making sliders of sliding clasp fasteners. YOSHIDA, T. March 19, 1958 No. 8812/58. Class 83 (2). A press for making the slider of a sliding clasp fastener, comprises a baseplate 46, a platen 45 reciprocatable towards and away from the base-plate, and a line of nine forming stations comprising dies removably affixed to the platen co-operating with dies removably affixed to the base-plate to perform the following operations on a strip of material fed into the press. (I) The corners are trimmed from the leading edge of the strip by dies 15, 16. (II) A dumb-bell shaped slider blank is cut by dies 2, 17, waste material being removed through a hole in the base-plate 46. (III) The four outwardly converging edges of the blank are flanged over by a die 3 and guide 4 co-operating with a die 19, a spring S5 serving to push back the blank out of the die 19 after forming. (IV) A slot is cut in the blank by dies 6, 23, the lateral position of the blank and thus the slot being adjusted by a lateral jaw 21 operated by a cam 5. Waste is removed through an exit in the base-plate 46. (V) A handle fixing part is made by making a slit on each side of the centre line of the strip by dies 7, 24 to leave a bridge between the slits and forcing this bridge out of the plane of the blank. A spring S6 pushes back the blank from the die 24. (VI) The handle-fixing part is given a T- shaped cross-section by lateral jaws 26, Fig. 10, slidable in the base-plate 46, and moved inwardly by cams 9 on the platen 45. (VII) The four inwardly-converging edges of the blank are flanged over by dies 10, 27. (VIII) The blank is severed from the strip by cutting means 11 and 54, a spring S7 pushing the cut blank back from the means 54. (IX) The blank is bent and stamped into its final form, Fig. 6 by dies 12, Figs. 11 and 32, and lateral jaws 30 moved inwardly by cams 13 on the platen 45 and, on raising the platen 45, moved upwardly by spring-urged pins 35 and outwardly by cams 14 on the platen. The completed slider is pushed up by a spring-urged die 34 and is ejected by compressed-air.
Patent GB-492688-A (GB)
Title: Electrolytic cell for the production of caustic alkalis and chlorine
IPC: C25B9/19
Filed: 1937-03-25
Abstract: 492,688. Electrolytic cells. I. G. FARBENINDUSTRIE AKT.-GES. March 25, 1937, No. 8817. Convention date, July 4, 1936. [Class 41] A cell for the production of chlorine and caustic alkali comprises four cylindrical cathode sheets K between the inner and outer pairs of which are mounted two circular rows of anodes A with intermediate diaphragms D. The anodes may be of graphite and the cathodes of perforated sheet iron faced with the diaphragm material. The cathode sheets are interconnected at the bottom by a spider. The anodes are connected at the top to two copper rings. Brine is introduced at I and alkali is withdrawn at E and chlorine at O.
Patent GB-218009-A (GB)
Title: Improvements in or relating to machines for combing cotton, wool and the like
IPC: D01G19/04
Filed: 1923-03-29
Abstract: 218,009. Hetherington & Sons, Ltd., J., and Horridge, J. March 29, 1923. Combing-machines. - The alternate forward and reverse movements of the front detaching- rollers 3, Fig. 1, are obtained from a shaft 18 on which is mounted a loose disc 17 oscillated from the comb cylinder shaft 2 by an eccentric 13. The disc carries in a bearing a shaft 19 on which are mounted a bevel wheel 20 and a worm 21. The bevel wheel 20 gears with a bevel wheel 23 loose on the shaft 18 and the worm 21 with a worm. wheel 22 fast on the shaft. The bevel wheel 23 carries a ratchet wheel 24 provided with a pawl 25 to prevent rotation in one direction. On the forward stroke of the eccentric 13, the friction of the worm 21 and worm wheel 22 is sufficient to cause the disc 17 and bevel wheel 23 to rotate together with the shaft 18. On the reverse stroke the pawl 25 prevents rotation of the bevel-wheel 23 and the bevel wheel 20 rotates operating the shaft 18 through the worm gearing. The back detaching-roller 4 is driven continuously by gearing 27, 28 from the shaft 2. The bevel wheel 23 may be replaced by a casing 23, Fig. 3, carrying a row of internal teeth 23<a> gearing with a pinion 30 on a stud 29. The shaft 19 is driven by bevel gearing 31, 20 from the pinion 30.
Patent GB-182523-A (GB)
Title: Improvements in or relating to walls constructed of hollow bricks
IPC: E04B2/02
Filed: 1921-03-23
Abstract: 182,523. Spring, F. March 23, 1921. Bulding-blocks.-A wall of parallel-sided cross-section is produced from hollow bricks arranged mutually staggered in the horizontal and in the vertical direction, and interengaging eaeh other in the horizontal direction. On a small scale for use as toys, the bricks preferably have dovetailed joining faces. By alternately using layers of bricks 1, 3, Figs. 1 and 2, the first of which is half the standard height, a wall is obtained of the type shown in Fig. 9. The bricks are grooved as at 5 and have hollow insulating cells or spaces 6, which form a continuous space even when the bricks are staggered. To increase the thickness of wall, intermediate bricks 8, Fig. 11, having hollow cells 9 are used with the addition of corner bricks 10 and intermediate bricks 13. Fig. 12 shows a sections] view of a wall supporting a floor, where the interior horizontal joints are staggered bv using bricks 3 of half height alternately at the base. The bricks may be made of concrete clay, brick concrete, slag concrete, &c., or of a mixture of such materials.
Patent GB-1535899-A (GB)
Title: Combined cannula of catheter and attachment device
IPC: A61M5/158
Filed: 1977-03-03
Abstract: For the purpose of increasing the operational safety and facilitating handling, two attachment surfaces (5) are provided, these surfaces being connected via at least one bridge element (4). The latter is arched upwards, preferably in such a way that the attachment part, in a side view, has the shape of a Greek  OMEGA . <IMAGE>
Patent GB-1415938-A (GB)
Title: Piston-cylinder arrangement
IPC: F16C29/02
Filed: 1973-02-23
Abstract: 1415938 Hydraulic actuators CARR SCHENCK AG 23 Feb 1973 [12 Jan 1973] 9079/73 Heading F1D [Also in Division F2] An actuator, Fig.1 for a material testing machine, has a bearing 5 for the piston-rod 2 which is resiliently mounted. As described it is mounted by a tubular spring 6. In a second embodiment, Fig.2, a fixed bearing 5a is connected by a resilient tube to a bearing 5b. This combination ensures that the piston 1 does not engage or press against one side of the cylinder 3. Fig.3 shows a bearing 51 connected to the cylinder by an elastic diaphragm 11. 13 and 14 are hydrostatic bearing pockets and a hydrostatically supported sealing 12 ring is provided. Self-centreing hydrostatic piston rings 10 may be provided or the piston may be coated with P.T.F.E.
Patent GB-765853-A (GB)
Title: Improvements in or relating to substituted piperidines
IPC: A61K31/00
Filed: 1953-04-01
Abstract: The invention comprises vinylpiperidine compounds of the general formula <FORM:0765853/IV(b)/1> (wherein Q is phenyl, Q1 is phenyl or pyridyl and R2 is hydrogen or an alkyl group of 1-6 carbon atoms) and their acid addition and quaternary ammonium salts, and the manufacture thereof by dehydrating a carbinol of the general formula: <FORM:0765853/IV(b)/2> (wherein one of R and R1 is hydrogen and the other a hydroxy group), followed, if desired and necessary, by reductive alkylation of the product, and further, if desired, by conversion of the product into an acid addition or quaternary ammonium salt thereof.  In examples: (1)-(3) diphenyl 4-, 3- and 2-pipecolyl carbinols are heated with 85 per cent sulphuric acid to produce 4 -, 3 - and 2 - (b  : b  - diphenyl)-vinylpiperidine, isolated in the form of their hydrochlorides; (4) diphenyl 1-methyl-2-pipecolyl carbinol oxalate similarly yields 2-(b  : b -diphenyl) - vinyl - 1 - methylpiperidine hydrochloride; (5) a -(2-pyridyl)-benzyl 1-methyl-4-piperidyl carbinol similarly gives 4-[b -(2-pyridyl)-b  - phenyl] - vinyl - 1 - methylpiperidine hydrochloride; (6) the product of (1) is warmed with formalin and formic acid, followed by treatment with caustic potash to liberate 4-(b  : b  - diphenyl) - vinyl - 1 - methylpiperidine; (7) the product of (6) is quaternated with methyl bromide; (8) the product of (3) is methylated as in (6) to form the same product as in (4); (9) and (10) the product of (4) or (8) is quaternated with methyl bromide and with methyl iodide. The products, especially in the form of salts (e.g. sulphates, phosphate, hydrochlorides, levulinates, mucates, acetates and tartrates) are useful as antispasmodic agents. Additional quaternizing reagents specified are ethyl chloride, methyl sulphate, methyl p-toluenesulphonate and benzyl bromide. Specification 765,854 is referred to.ALSO:Therapeutic preparations for the relief of smooth-muscle spasms contain vinylpiperidine compounds of the general formula:-  <FORM:0765853/VI/1> (wherein Q is phenyl, Q1 is phenyl or pyridyl and R2 is hydrogen or an alkyl group of 1-6 carbon atoms) or an acid addition or quaternary ammonium salt thereof.  These compounds may be employed in the form of an aqueous solution of a water-soluble salt (e.g. of sulphuric, phosphoric, hydrochloric, leonlinic, mucic, acetic or tartaric acid) or incorporated in a tablet or capsule base.  The free bases or their sparingly soluble salts may be administered when a slow and prolonged effect is desired.  The quaternary ammonium salts (e.g. methobromides and methiodides) have a particularly powerful action.  Specification 765,854 is referred to.
Patent GB-255384-A (GB)
Title: An improved railway rail for detaching brake skids
IPC: B61K7/04
Filed: 1926-04-06
Abstract: 255,384. Acieries de Haine-St.-Pierre et Lesquin, (Assignees of Digna, L.). Feb. 27, 1926, [Convention date]. Rails for detaching brake skids have a head b which is bent at its centre towards the outside of the track on a downward incline to form a head d separated by an inclined groove g from the other head h. The head h ends in a downwardly inclined point i which receives the wheel tyres after the brake l is detached.
Patent GB-598561-A (GB)
Title: The manufacture of paper and photographic sensitive paper
IPC: D21H17/64
Filed: 1945-04-12
Abstract: Paper of high wet-strength is made from pulp to which is added a melamine-formaldehyde or a melamine-monoureide-formaldehyde resin, e.g. having a ratio of formaldehyde to melamine of 1 to 6 : 1.  The resin is prepared, e.g. by reacting 20 mols of hydrogen chloride with 20 of urea in distilled water and 20 of melamine. The melamine-monoureide is separated by crystallization and dried, 11.83 mols thereof dissolved with rapid stirring in 75 mols of formaldehyde in water and the solution rapidly cooled.  The pulp is sized, e.g. with resin or stearic acid saponified with caustic soda before adding the melamine resin.  Starch, glues, and dyes &c., may also be added. The precipitant, e.g. aluminium chloride is such that polyvalent inorganic acid ions are not present in the product.
Patent GB-1369282-A (GB)
Title: Process for the preparation of bicyclic amines
IPC: C07D471/08
Filed: 1972-02-29
Abstract: 1369282 Preparation of bicyclic amines ESSO RESEARCH & ENG CO 29 Feb 1972 9286/72 Heading O2C - A process for the preparation of a bicyclic amine comprises reacting a compound having the general formula wherein Y is a nitrile or methylamino radical, R 1  is an organic radical having from 2 to 25 carbon atoms, R 2  is aryl, alkyl substituted aryl, or a hetero group substituted aryl radical having from 6 to 25 carbon atoms and R 3  is an organic radical having from 2 to 25 carbon atoms, with hydrogen in the presence of a hydro - genation catalyst while heating at elevated temperatures in a stepwise manner (as hereinafter defined) for a sufficient time to obtain the bicyclic amine. By the term " stepwise manner " is meant that the heating is carried out in different stages, each at a different temperature level. It is desirable that the hydrogenation reactions be conducted in the presence of a solvent. In general, the monocyclic and bicyclic amine compounds can be prepared utilizing either a one-stage or two-stage hydrogenation operation.
Patent GB-179773-A (GB)
Title: Improvements in fusible electric cut-outs
IPC: H01H85/15
Filed: 1921-03-29
Abstract: 179,773. Bartmann, L. March 29, 1921. Fusible cut-outs.-The insulating body or plug 1 is formed with a cavity 2 so shaped as to guide the ends 3a of a bare fuse wire 3, dropped into it, towards the contacts 4, 5 to be bridged, and a cover or lid is provided to hold down the fuse in this position. In one construction, Figs. 1 and 2, the fuse wire 3 is covered by a strip 8 of mica upon which rests a block 9 of glass held down by a cover 10 secured by bayonetjoints 11. In a modification, Fig. 5, a cover 25 of transparent material is formed with a rib 27 bearing on the fuse wire 3, and is carried in a metal frame 28 secured by bayonet-joints. A spring may be provided to lift the contact 5 and withdraw the terminal 7 into a recess 18 when the cover is detached, thus breaking the circuit while the fuse is being renewed. Recesses 19, 20 are provided for the reception of spare, fuse wires.
Patent GB-107974-A (GB)
Title: Improvements in or relating to the Breech Mechanism of Ordnance.
Inventor: ASBURY DORSEY FROST
IPC: F41A5/32
Filed: 1916-10-02
Abstract: 107,974. Asbury, D. F. Oct. 4, 1915, [Convention date]. Ordnance breech mechanism.-Relates to screw type mechanism in which the breech screw operating-shaft mounted on the carrier has a crank engaging with a crosshead mounted in a slide on a link pivotally connected to the breech screw. The invention consists in providing (1) means engaging with parts of the carrier and crank for moving the slide backwards and forwards during the locking and unlocking displacements of the breech screw, and (2) means for interlocking the bearing and crank during operation to hold the parts assembled. The invention is practically applicable to power-operated mechanism of the kind described in Specification 16406/15. In the form shown, a shaft 14 is rotated in the carrier C under the action of a reciprocating motor 33 and, through the medium of a crank 15, pin 16, and a sliding block 20, Fig. 2, moves a link 18 to rotate the breech screw B for locking and unlocking. The link 18 is moved forwards during the locking of the breech screw, by the engagement of the crank 15 with an incline 24 on the link, and rearwards during the unlocking, by the engagement of a flange 21 on the link with an incline 23 on the carrier C. The link and crank are maintained in their assembled position during operation by the flange 21 on the link which overlaps either an extension 17 on the crank or the crank itself. The link 18 is arranged to be readily disconnected from the crank 15 after detaching it from the breech screw.
Patent GB-325152-A (GB)
Title: Improvements in the manufacture and production of ethylene from acetylene
IPC: C07C5/09
Filed: 1929-03-23
Abstract: 325,152. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 23, 1929. Hydrogenized organic compounds, catalytic production of. - In the production of ethylene by catalytic hydrogenation of acetylene, 5-20 per cent of water vapour is added to the reaction mixture in order to prevent the formation of polymerized bodies which poison the catalyst. The addition is effected by passing the reaction gas over water heated to 95-96‹ C. Suitable catalysts are nickel, cobalt, copper, chromium, and palladium either with or without additions of oxides or silicates. Elevated, atmospheric, or reduced pressure may be employed. Catalytic agents, preparation of.-A palladium catalyst is prepared by adding a solution of 1 part of palladious chloride to a suspension of 300 parts of kieslguhr in 4000 parts of water and reducing with hydrogen. The product is filtered off and dried and applied together with 200 parts of waterglass to 780 parts of granular pumice. A nickel catalyst is prepared by precipitating 20 parts of waterglass with calcium nitrate, mixing the resultant precipitate with 18 parts of nickel oxide and depositing the mixture on pumice, after which it is reduced with hydrogen.