baber/WOPTO huggingface dataset:
Patent GB-971016-A (GB)
Title: Sealing ring
Inventor: HORVEREID WELLS JEROME
IPC: F16J15/32
Filed: 1962-05-10
Abstract: 971,016. Seals. PRECISION ASSOCIATES Inc. May 10, 1962, No. 18063/62. Headings F2B and F2T. A resiliently distortable sealing ring, e.g. of synthetic rubber, for use between relatively movable members, comprises, in radial crosssection, a middle body portion having contiguous sides 11, 12, Fig. 2, at an angle, e.g. 90 degrees, to each other and subjected in use to pressure, the side 11 having flexible corner lips 13 for sealing engagement with a sliding surface and the side 12 being adapted to seal statically. against a surface and having one of the corner flexible lips in common with the side 11 and a relatively larger bumper portion 20 which is spaced from that one lip by a groove 22 and which, during use, absorbs compressive force and prevents folding or crushing of the lip. As shown, the ring is provided with pairs of sides 11 and 12, respectively, having common sealing lips 13 with nose portions 14 which may be rounded or sharp. The sides 11 are located at the inner and outer peripheries of the ring when either of these peripheries is required to seal against a sliding surface. Alternatively, these sides are located on the axially opposite end faces of the ring when either of them is required to seal against a rotating surface. On each side 11 the lips 13 are spaced from an intermediate rounded or sharp rib 17 by grooves 18 which act as lubricant reservoirs, the rib 17 being radially recessed from the lips 13 so that in use it will come into contact with the surface to be sealed only after the lips have been distorted to a certain extent. In a modification, Fig. 4, the rib conformation is eliminated and replaced by a trough 26 which retains lubricant and is sufficiently shallow to prevent crushing of the ring under high operating pressures.
Patent GB-765750-A (GB)
Title: Detergent compositions
Inventor: HARRIS RICHARD GEOFFREY
IPC: C11D3/39
Filed: 1954-06-21
Abstract: A detergent composition, free from any constituent capable of becoming rancid as a result of oxidation, contains synthetic detergent, a solid per-compound, particularly sodium perborate or percarborate and, as a stabilizer for the per-compound, a minor proportion (up to 0.5 per cent, preferably 0.2 per cent) of ethylene diamine tetraacetic acid or b -hydroxyethyl ethylene diamine triacetic acid or salts thereof.  The preferred synthetic detergent is either the salt of an acid sulphate of a saturated aliphatic alcohol or a salt of an alkylbenzene sulphonic acid, the alkyl group in either case containing 8-18 carbon atoms, or a mixture of such salts.  Alkali metal phosphates and polyphosphates, silicates and sulphates and salts of carboxymethylcellulose may be added as optional ingredients.  An example is given.
Patent GB-673587-A (GB)
Title: Improvements relating to coffee percolator bags
IPC: B65D85/808
Filed: 1950-07-21
Abstract: 673,587. Paper &c. bags. ABRAHAMS, L. H. July 21, 1950 [Aug. 23, 1949], No. 18245/50. Class 94(ii). [Also in Group VI]. A sealed percolator bag 8 containing ground coffee is formed from a porous, non-woven fabric of regenerated cellulose fibres 22, preferably viscose fibres, bound together by non-fibrous regenerated cellulose 24, also preferably viscose. The fibres are disposed generally in one direction but overlap, and cross to form a network, and are coated, e.g. sprayed, with a viscose solution, the cellulose being subsequently regenerated in situ, to form a cohesive fabric having minute pores 26. The edges of the bag may be secured together by stitching or by a glue unaffected by boiling water.
Patent GB-1455525-A (GB)
Title: Feeding devices for breathing masks
IPC: A62B18/08
Filed: 1974-04-25
Abstract: 1455525 Respiratory masks DRAGERWERK AG 25 April 1974 [27 April 1973] 18257/74 Heading AST A feeding tube 2, 4, for gas tight location in an aperture in the wall of a breathing mask has its outer end closed by a threaded cap 9 which is secured against loosening by an elastic sleeve 10 which surrounds the tube and bears against the peripheries of the cap 9 and the tube. For removal or application of the cap 9 the sleeve 10 is folded back on itself on the tube. The cap 9 is held rotatably captive by a strip 11 made in one piece with the sleeve 10. A flap valve 7 is disposed at the inner end of the tube.
Patent GB-994722-A (GB)
Title: Improvements in or relating to monoblock circuit-breakers
IPC: H01H33/75
Filed: 1963-05-08
Abstract: 994,722. Liquid blast switches. SOC. ANON. DE PARTICIPATION'S APPAREILLAGE GARDY. May 8, 1963 [May 2, 1963], No. 18265/63. Heading H2B. A polyphase liquid-blast circuit-breaker has a case of moulded resin with a plurality of cavities 4a, 4b, 4c, arranged at the corners of a regular polygon, into which are inserted the individual arc-extinguishing chambers 11 comprising alternate axial evacuation chambers 18a, 18b and lateral evacuation chambers 21a, 21b, 21c venting into chimneys 5a, 5b, 6a. The breaker is actuated through gearing by an electric motor or a handle (Fig. 1, not shown) a dashpot 44 being provided.
Patent GB-642597-A (GB)
Title: Improvements in or relating to the production of sulphenamides
IPC: C07D277/80
Filed: 1947-07-10
Abstract: Sulphenamides are prepared from a water-soluble alkali metal salt of an organic mercaptan and an amine stronger than ammonia, containing at least one free hydrogen atom, by oxidation in aqueous solution with a hypochlorite at a constant pH.  For instance, an aqueous solution of an alkali metal salt of a mercaptobenzothiazole and a primary, secondary, or cyclic amine with a dissociation constant greater than 1.8 X 10-5 is oxidized with an alkali metal hypochlorite whilst maintaining a pH corresponding to 680-710 millivolts as measured by the system antimony-saturated calomel.  Of the many suitable amines specified, the following are representative: benzylamine, methylamine, propylamine, allylamine, diethylamine, morpholine, methylethylamine, methylnaphthylamine, and diphenylguanidine. Specified mercaptans include thiophenol, thio-b -naphthol, 2-mercaptothiazoline, 2-mercapto-4 : 5 - dihydroglyoxaline, 2 - mercaptobenzimidazole, 2-mercaptobenzoxazole, and 2-mercapto - 4 - ethylthiazole.  2 - Mercaptoaryl thiazoles are preferred, e.g. 2-mercaptobenzothiazole, 2-mercaptonaphthothiazole, 2-mercapto - 4 - phenylbenzothiazole, 2 - mercaptomethylbenzothiazole, and 2-mercaptochlorobenzothiazole.  The pH of the oxidation, which is conveniently indicated and controlled by a potentiometer method, is of the order of 11.6 in a typical experiment.  The actual value is not critical and the oxidizing potential may vary, e.g. between p  460 and 700 millivolts.  The concentration of the hypochlorite solution should be at least 7.5 per cent by weight of active hypochlorite, e.g. 8-10 per cent, whilst the quantity of hypochlorite should be about 50 per cent in excess of theory. Stoichiometric amounts of mercaptan with most secondary and some primary amines are used, although 1.1 mols. of amine is preferred; in other cases a larger excess of amine, e.g. 3 mols., is desirable.  The preferred temperature range is 10-30 DEG  C., and particularly 20-30 DEG  C., i.e. room temperature; cooling may be necessary.  In the examples, and aqueous solution of sodium mercaptobenzothiazole is oxidized at constant pH with sodium hypochlorite in the presence of (1) cyclohexylamine to give cyclohexylaminothiobenzothiazole; and similarly in the presence of (2) and (3) n-butylamine; (4) n - amylamine; (5) o - cyclohexyl - cyclohexylamine; (6) monoethanolamine; (7) sec.-butylamine; (8) piperidine; and (9) ethylenediamine, to give the corresponding aminothiobenzothiazoles.
Patent GB-444565-A (GB)
Title: Improvements in or relating to studs or like fasteners and methods of or means for producing the same
IPC: B21D53/48
Filed: 1934-06-21
Abstract: 444,565. Making garment studs. TUCKER EYELET CO., Ltd., G., Jameson Road, WAINWRIGHT, J. S., 41, Powick Road, Erdington, and TURNER, S., 71, Slade Road, Erdington, all in Birmingham. June 21, 1934, Nos. 18325 and 31447. [Class 43] [See also Group XXII] A garment stud is made by subjecting a unitary blank of sheet metal, e.g. zinc, to a number of drawing operations to form a hollow shank 3<1> and a base 1<1>, constricting the shank between its ends by a rolling operation, to form a head 7<1> and imparting to the head a tapered substantially conical shape to facilitate insertion. The head may be shaped after the constricting operation by applying a tool 31, Fig. 7, under pressure while the stud blank is being held by relatively movable dies 17, 25, the action of the tool also producing a pronounced shoulder 13 between the head and the shank by pressing the head against the dies. Alternatively the shaping may be effected prior to constricting the shank and during the last drawing operation by subjecting a blank, such as 37, Fig. 8, to the action of a drawing rod 39 and a forming tool 55, the shank being constricted by passing the stud blank between a fixed die 65, Fig. 10 and a rolling wheel 63. The die plate 35 cooperating with the drawing rod 39 is recessed to accommodate the base of the blank and provided with projections to form indentations 9<1> on the base 11.
Patent GB-846431-A (GB)
Title: Improvements in or relating to elastic fluid turbines
Inventor: HERTL ROBERT
IPC: F01D9/06
Filed: 1958-06-09
Abstract: 846,431. Elastic-fluid turbines. WESTING- HOUSE ELECTRIC CORPORATION. June 9, 1958, No. 18333/58. Class 110 (3). [Also in Group XXVIII] An elastic fluid turbine comprises an outer casing, an inner casing enclosed by the outer casing and a nozzle casing enclosed by the inner casing, the turbine having at least one inlet conduit rigidly connected to the outer casing and extending through the inner casing to enter the nozzle casing, telescopic connections being provided between the inlet conduit and the inner casing and the nozzle casing respectively to permit relative movement therebetween. The outer casing 11 is axially divided into two parts 31, 32 (see Fig. 4) fastened together by bolts and surrounds the inner casing 12 which is similarly divided into two parts 41, 42 joined together by studs 46. The inner casing is located axially with respect to the outer casing by key connections 48, and is supported (see Fig. 1) by the outer casing on lugs 49 which extend therefrom to mate with grooves 50 in the casing 11. Within the inner casing is supported the nozzle casing 13 which is divided into two parts 51, 52 about a horizontal joint 72. Two lugs 73 on the lower half 52 are disposed in suitable openings provided in the inner casing to support both halves of the nozzle casing, while lugs 74 provided in the upper half 51 also mate with openings provided in the inner casing to restrain torques on the nozzle casing, the lugs allowing relative movement between the nozzle and inner casings along the plane of the joint 72. Lateral location of the nozzle casing is secured by pins 75. Tongue and groove connections 76 restrain the nozzle casing against axial displacement. The turbine is provided with a fluid exhaust 17 and with a fluid inlet conduits 16, the latter being secured to the outer casing and extending telescopically through tubular collars 63 on the inner casing and through tubular necks 61 integral with the nozzle casing. Sealing means 66, 67 are provided between the conduit and the necks 61 and the collars 63 respectively, the means comprising alternate rings, one set being in slidable sealing relationship with the conduit and the other, alternate, set being in slidable sealing relationship with the neck or collar as the case may be. In a modification, Fig. 5, the conduits are arranged radially and have each a flange 191 bolted to a flange on the outer casing 111 the conduits being again telescopically engaged with collars 195 and necks 201 on the inner casing and the nozzle casing respectively. Specification 846,432 is referred to.
Patent GB-1401162-A (GB)
Title: Centrifuge bowl having a nozzleassembly
IPC: B04B1/12
Filed: 1973-04-17
Abstract: 1401162 Centrifuge bowl discharge arrangement PENNWALT CORP 17 April 1973 [31 May 1972] 18379/73 Heading B2P Heavy phase material separated within a separation chamber 75 of a centrifuge bowl 18 is discharged through an opening 16 which extends through the wall of the bowl and is fitted with a nozzle assembly 10 including a retainer sleeve 11 slidably mounted within the opening, means 50, 78 for holding the sleeve in a predetermined angular position and means 22, 26 to limit sliding of the sleeve outwardly of the bowl, a nozzle holder 12 having a portion 40 of circular cross-section which is slidably mounted within the inner portion 42 of the interior of the sleeve, means 36, 38 for locking the holder against axial movement with respect to the sleeve by rotating the holder in one direction after its portion 40 has been pushed inwardly to a predetermined position within the sleeve inner portion 42, and means 46, 48 for stopping the rotation of the holder in the said one direction at a predetermined point at which the holder is in a fully-locked position. The sleeve 11 is pushed into the opening 16 from the interior of the bowl until a shoulder 22 on its outer periphery abuts a shoulder 26 formed in the opening and it is keyed into place by a key 50 extending through it into a groove 78 formed in the wall of the bowl 18. The holder 12 is pushed into the sleeve from the exterior of the bowl and is locked into place (by rotation) by a bayonet-type connection formed by a lug 38 on the holder engaging into a channel 36 in the sleeve. In the fully-locked position of the holder the end 46 of lug 38 abuts the side 48 of the key 50. To unlock the holder and remove it from the sleeve, it is rotated in the opposite direction, rotating lug 38 out of channel 36 until the other end 52 of lug 38 abuts the other side of lug 50. The holder is then in its fully unlocked position and can be pulled from the sleeve. The holder may be rotated by a tool engaging a slot 56 in the outer end of the holder, the slot being also arranged to provide visual indication of when the holder is in its fully locked position. A nozzle 14 includes an abrasion-resistant insert (68), Fig. 5 (not shown), secured, e.g. by glue, within a flanged outer casing (76) which is threadably mounted in the holder 12. When the holder is in its fully-locked position the nozzle is disposed in such a position as to discharge material in a predetermined direction with respect to the bowl. A boss 58, which may be associated with a sealing ring 62, is provided on the holder 12 to guide and support the holder within the sleeve 11 and also to shield the interior of the sleeve from material being discharged through nozzle 14. Sealing rings 28, 43 and (74) are mounted between the bowl and the sleeve between the sleeve and the holder, and between the holder and the flanged portion of the nozzle outer casing (70). A number of discharge openings provided with nozzle assemblies are arranged around the bowl.
Patent GB-613825-A (GB)
Title: Improvements in and relating to permanent magnets or other elements possessing permanent magnetism
IPC: C22C33/02
Filed: 1945-07-18
Abstract: In compressing a mixture of metallic powders having different values of coercive force and size to form a permanent magnet, the mould is lined with sheets of material such as soft iron from 2 - 3 tenths m.m. thick to prevent wear.  The linings may be removed from the core immediately after moulding or after heat treatment.
Patent GB-613377-A (GB)
Title: Improvements in hand stamps
IPC: B41K1/00
Filed: 1946-06-19
Abstract: 613,377. Hand stamps. WAHLSTROM, N. H., and LOFVEBERG, G. J. June 19, 1946, No. 18431. [Class 100(ii)] [Also in Group XV] A hand stamp comprises a stamping plate 9 and an ink pad 6 which, when the stamp is not in use, are held in contact with one another within a two part container comprising two interengaging sleeves 1, 2 of which the outer, 2, forms a handle for the stamping plate 9 to which it is pivotally connected and the inner, 1, has a longitudinal portion cut away to a length slightly less than that over which it is embraced by the outer sleeve 2, the remaining portion of the inner sleeve 1 forming a holder 5 for the ink pad 6. The stamping plate 9 is carried by a rod 11 which is rigid with a split ring 12 sliding under friction in the sleeve 2. To limit the outward movement of the sleeve 2, the rod 11 is extended beyond the ring 12 to form a loop 15 which has a lost-motion connection with a link member 16 fixed in the sleeve 2. The rod 11 is made in the form of a resilient hook, the free limb 17 pressing the stamping plate against the pad 6 when the stamp is not in use. The end 7 of the holder 5 is turned over to form a stop 8 to prevent axial withdrawal of the stamp which is moved towards a rubber cushion 14 till it clears the stop 8 when it can be removed at an angle. A modification is described in which the outward movement of the sleeve 2 is limited by an extension of the rod 11 in the form of a sleeve which slides over a rod attached to the sleeve 2, an enlarged head on the rod co-operating with a flange on the sleeve to limit movement. The stamp is described as combined with a propelling pencil 3 formed as an extension of the sleeve 1. Instead of a pencil 3, the extension may include fountain pen mechanism or be formed as a pipe scraper or as a container for refill leads.
Patent GB-108111-A (GB)
Title: Improvements in Pressure Releasing Devices for the Rollers of Clothes Wringers.
Inventor: WRIGHT REA PATTISON
IPC: D06F45/00
Filed: 1916-12-22
Abstract: 108,111. Wright, R. P. Dec. 22, 1916, Wringers, rollerseparating arrangements for. - The topbar is held down by pivoted side hooks which may be released either automatically or manually. The hooks 13 are formed with shoulders engaging pins 14 extending from the topbar; their upper portions have slotted racks 13' for limiting the upward movement of the topbar. Release is effected either by the action of the upper roller axle 4 upon the tails 17 of the levers, or manually by a bar 15 connecting the heads of the hooks. The bar is bent at 16 to accommodate the pressure screws. Reference has been directed by the Comptroller to Specification 110,607.
Patent GB-498598-A (GB)
Title: Improvements in electric circuit arrangements comprising multielectrode thermionic valves
IPC: H01J21/14
Filed: 1937-07-02
Abstract: 498,598. Thermionic valves. GENERAL ELECTRIC CO., Ltd., ALDOUS, W. H., and WARREN, G. W. July 2, 1937, Nos. 18447/37 and 17028 /38. [Classes 39 (i) and 40 (v)] A valve comprising a linear cathode, an accelerating grid, and a retarding grid, and in which a voltage of a frequency so high that its period is not long compared to the time of transit of the electrons between the two grids is applied between the retarding grid and some other electrode of the valve, is so arranged that electrons repelled from the retarding grid pass clear of the accelerating grid and the cathode. Fig. 2 shows an arrangement in which the electrons from the cathode 1, after passing a grid 2 and an accelerating grid 3, are formed by screen electrodes 9, 9<1> into streams which pass through retarding grids 4, 4<1> and grids 7, 7<1>, 8, 8<1> to cathodes 5, 5<1>, the cathodes and their associated grids being placed at an angle to the electron stream, so that the repelled electrodes pass as shown by the dotted lines to electrodes 6, 6<1>. Fig. 3 shows a frequency-changing circuit employing a valve of-this type. The electrodes 2, 3 and 7 are connected to the tuned input circuit 22, 23, the valves also include electrodes 10, 11 connected to a triode oscillator circuit. Fig. 1 shows a cathode 1 and grid 2 lying between two parallel sheet metal electrodes 3 which form the electrodes into a stream passing between sets of grids formed by parallel wires 4, 5, 6 and receive electrodes deflected by the grid 5.
Patent GB-612800-A (GB)
Title: Improvements in or relating to sanitary appliances
IPC: A61F13/64
Filed: 1946-06-19
Abstract: 612,800. Catamenial appliances. BERETMAC, Ltd., and BAUM, H. E. June 19. 1946, No. 18461. [Group 81(ii)] [Also in Group VII] In an appliance used as a catamenial bandage and comprising a moisture-proof pocket 10 open at one side and provided with elastic straps 12, the straps are provided with a number of apertures 13 adapted to be engaged upon studs 14 at the other end of the pocket. The pocket and straps may be formed integrally of rubber, synthetic rubber, &c. The edges of the pocket may be beaded.
Patent GB-1023112-A (GB)
Title: Improvements in or relating to a microwave antenna
IPC: H01Q21/00
Filed: 1963-05-09
Abstract: 1,023,112. Aerials. LABORATORY FOR ELECTRONICS Inc. May 9, 1963 [May 10 1962], No. 18470/63. Heading H4A. [Also in Division H1] The invention relates to an aerial for an airborne Doppler navigation system and provides a pencil beam which may be switched to a plurality of directions 11-14, Fig. 1 (not shown), inclined to, and symmetrical about, the vertical axis. The aerial comprises a plurality of identical waveguides 41, Fig. 2, each connected to a pair of feed waveguides 21, 22, by slots in these latter. Each of the waveguides 41 radiates through slots inclined to the longitudinal axis and the angle of inclination and depth of slot is varied along the guide such that the coupling coefficient g(n) of the nth slot from either end of the waveguide is given by g(n) = sin<SP>2</SP> + n#/N+1 + D N+1 where N is the total number of slots in the guide and D is an empirical constant. Such an arrangement gives an asymmetric tapered amplitude distribution providing a beam of suitable width and side lobe level. The coupling between the radiating waveguides 41 and the feed waveguides 21 and 22 is arranged in a corresponding manner. Formulae are derived for the variation of slot angle and depth, and to relate the spacing of the slots in the waveguides 41 and 21, 22, to the angles between the directions 11-14 and the X and Y axes. As described, the beam is switched in turn to only three of these directions by energizing in turn three of the four input ports 31-34 of the array, the fourth port being terminated in a matched load. A microwave switch (see Division H1) is described with reference to Fig. 5 (not shown) for connecting these three ports in turn to a common feed.
Patent GB-146444-A (GB)
Title: Improved valve control for internal combustion engines
IPC: F01L1/12
Filed: 1920-07-03
Abstract: 146,444. Mõdler, F. L. April 8, 1918, [Convention date]. Valve-gear.-To prevent strains on the cylinder, the valve-levers are supported from the crankcase. In Fig. 1, the cylinder-securing bolts a are shown prolonged upwards and enclosed in aluminium blocks b. Bridge-pieces c carrying spindles d for the valve-levers are secured to the blocks b by nuts e on the long bolts a. In Fig. 3, the valve-levers g are shown pivoted on rods k, which are pivotally mounted on the crank-chamber.
Patent GB-1532330-A (GB)
Title: Hand trucks
IPC: B62B3/06
Filed: 1977-05-03
Abstract: 1532330 Elevating apparatus A FOX 3 May 1977 [7 June 1976] 18520/77 Heading B8L [Also in Division B7] To improve the manoeuvrability of a hand truck having a lifting and lowering platform 14 a castor 75 is provided on the underside of the platform to support the truck for movement when it is tilted forwards on its main wheels 15. The truck comprises first and second telescoping frames 11, 12 with the frame 12 that carries the platform 14 being movable relative to frame 11 by an electric motor driven screw and nut mechanism 26. A rearwardly extending support frame 17 with castors 18 is pivotally attached to frame 11 and is adjustably maintained in position by bracket 20. A winch mechanism 40 for manipulating the truck is provided. The truck may be used for loading or unloading a pick-up truck (see Figs. 2 to 4, not reproduced).