baber/WOPTO huggingface dataset:
Patent GB-687597-A (GB)
Title: Improvements relating to surgical and like sewing needles
Inventor: EVERETT SAMUEL JAMES
IPC: A61B17/06
Filed: 1950-08-23
Abstract: 687,597. Sewing-needles. EVERETT & CO., Ltd., S. & R. J. Aug. 17, 1951 [Aug. 23, 1950; July 11, 1951], Nos. 20885/50 and 16456/51. Class 112. A surgical needle comprising a core 2 of corrodible metal surrounded by a corrosion-resistant shell 1, as described in Specification 670,199, has part of the core removed for a short distance at the point and replaced by fusible corrosionresisting material 6 to protect the core; similar material may also be run into a cavity at the other end for the same purpose. A metal, such as zinc, or a thermoplastic resin, such as nylon, may be used; in the former case the needle may afterwards be gilded or otherwise plated with corrosion-resistant metal. If resin is used at the butt end, the suture 8 may be secured by the resin 7 acting as cement. The needle point is formed in the hard metal 1 by grinding off the end at an angle as shown, and may be brought to an axial position by bending the end portion of the needle. A needle of triangular section may be used. The required part of the core may be removed by drilling, by dissolving in acid, or by electrolysis.
Patent GB-916745-A (GB)
Title: Improvements in the manufacture of polyether-polyurethane flexible foams
IPC: C08G18/18
Filed: 1959-06-18
Abstract: Polyurethane foams are obtained by mixing in one step (1) a polyether having at least 85% terminal primary hydroxyl groups, mol. wt. of 1,600 to 3,400 and a hydroxyl number of 50 to 160 and being a condensate of propylene oxide and an aliphatic polyhydroxy compound having at least 3 hydroxyl groups; (2) a stabilizer of polydimethyl siloxane or siloxaneoxyalkylene block copolymers; (3) the diisocyanate of toluene or m-xylylene; (4) water, and (5) a basic catalyst containing a tertiary nitrogen atom.  Up to 30% of the polyether can be a condensate of propylene oxide with ammonia or aliphatic amines.  Up to 25% (relative to the polyether) of a polyether glycol or a linear polyester may be mixed with the polyether.  Lists of suitable components are given and include conventional tertiary amine catalysts.ALSO:Polyether-polyurethane foams are obtained by mixing in one step (1) a polyether having at least 85% terminal primary hydroxyl groups, a molecular weight of 1600 to 3400 and a hydroxyl number of 50 to 160 and being a condensate of propylene oxide and an aliphatic polyhydroxy compound having at least 3 hydroxyl groups; (2) a stabilizer of polydimethyl siloxane or siloxane-oxyalkylene block co-polymers; (3) toluene-or m xylylene-diisocyanate; (4) water and (5) a basic catalyst containing a tertiary nitrogen atom.  Up to 30% of the polyether can be a condensate of propylene oxide with ammonia or aliphatic amines.  Up to 25% (relative to the polyether) of a polyether glycol or a linear polyester may be mixed with the polyether.  Lists of suitable components are given.
Patent GB-281019-A (GB)
Title: Improvements in or relating to combination loud speaker devices
IPC: H04R1/02
Filed: 1926-08-26
Abstract: 281,019. Farmer, W. J. Aug. 26, 1926. Loud-speakers. - A combined hornless loudspeaker and flower bowl or vase comprises a bowl a having, beneath its raised bottom b, an openwork portion c and a flange d which is secured to a base member e adapted to house the loudspeaker element f. The element f, which is preferably of the construction described in Specification 239,935, may be mounted, as shown, on the base g of the member e or it may be secured to the bowl a. The diaphragm k may be protected by a fine gauze guard arranged across the top of the frame n or clamped between the flanges d, o, and an openwork or stamped metal guard, sleeve or ring may be fitted around the frame n. The raised bottom b of the bowl serves to deflect the sound waves out through the openwork portion c. In order to prevent the possibility of any water from the bowl a coming into contact with the element f, the flange d may be upturned at its inner periphery as indicated in dotted lines. The upper part of the bowl may be fitted with a wire net. A metal wire p may extend from one of the bowl-securing screws q down and through a hole r in the plate g, where it is bent over and a seal s applied.
Patent GB-606498-A (GB)
Title: Improvements in and relating to automatic voltage regulation of alternating-current generators
IPC: H02P9/22
Filed: 1943-12-16
Abstract: 606,498. Automatic control systems for A.C. generators. JONES, R. C., PAYNE, N. H., and STREETE, R. H. Dec. 16, 1943, No. 21158. [Class 38 (iv)] Voltage.-In order that the output voltage of an alternator, such as one driven by an aircraft engine, may remain constant with rise of speed and frequency above a unusual value and may fall with failing speed, the operating coil of the voltage regulator is supplied through a suitably adjusted frequency-responsive network. Thus, the coil 18 of a carbon pile regulator 16 for the field of an exciter 13 is connected through a rectifier 19 to a potentiometer 29 connected to the output terminals of an A.C. bridge, the input terminals of which are connected across two of the three-phase output conductors of the alternator 10. The bridge comprises inductances 23, 25 and condensers 24, 26 with a resistance 40 and is nearly in balance at normal frequency. The electrical quantities are chosen so that an increase or decrease in frequency causes an increase in the voltage applied to the potentiometer and the resulting alternator voltage changes with frequency as shown in Fig. 3, where the normal frequency is 250 cycles and the curve 39 indicates the change of voltage with constant excitation. At speeds above normal, the alternator 'voltage is substantially constant as at 37 and at sub-normal speeds the voltage falls according to the curve 36, 38. The slope of the part 38 is adjusted so that the electrical load will fall at substantially the same rates as the power output of the engine. The regulator has a stabilizing coil 17 and an opposed compensating coil 17a.
Patent GB-260379-A (GB)
Title: Improvements in and relating to casing heads for oil wells
IPC: E21B35/00
Filed: 1925-08-24
Abstract: 260,379. Arbon, P. Aug. 24, 1925. Glands and caps.-A valve for controlling the outflow from oil wells comprises a valve body 5 on a stem 6 which passes through a cover 22 and gland cap 28. 'The cover has a rim 21 seating in a recess 20 in the valve casing, and a groove 26 for a packing-ring, which, together with the gasket 36, is kept in place by a cap 28. The gland cap 28 is bolted to the cover 22.
Patent GB-443018-A (GB)
Title: Improvements in and relating to directional wireless transmitting and receiving systems
IPC: H01Q21/12
Filed: 1934-07-19
Abstract: 443,018. Directive aerials. PERCIVAL, W. S., 6, York Mansions, York Avenue, Hanwell, Middlesex. July 19, 1934, No. 21185. [Class 40 (v)] In a directive shortwave system, the lateral members 3, 4, Fig. 1, connecting the parallel feed - line transformer 6, 7 to the more widelyspaced aerial wires 1, 2, are arranged to develop current-nodes at the points 11, 12, so that undesired radiation from the wires 3, 4 is substantially balanced out. In order to secure a more favourable impedance matching, the conductors 3, 4 may be connected at intermediate points 15, 16 along the aerial wires, as shown in Fig. 2. This reduces the overall selectivity of the aerial, and so minimizes side-band cutting, particularly in television. The field-distribution may be varied from a figure-of-eight to a cardioid curve by altering the relative lengths of the aerial elements. In Fig. 1 the feed-wire is terminated by a quarter-wave auxiliary conductor 17 to reduce the currentflow along the outer surface of the sheath 8.
Patent GB-845516-A (GB)
Title: Improvements in or relating to resilient supporting surfaces for seats and the like
Inventor: DUTTON HERBERT EDWARD
IPC: A47C31/04
Filed: 1956-07-09
Abstract: 845,516. Resilient webbing. NON-SAG SEATING CO. Ltd. July 8, 1957 [July 9, 1956], No. 21239/56. Class 52(4) The webbing strips 2 forming a resilient supporting surfaces for seats, mattresses &c. have each end embraced by a metal reinforcing member 1 which is bent over as shown and finally clenched into a substantially U-section. The ends of the strips are then inserted into a groove in the surrounding frame and secured by nails passing through preformed holes in the reinforcing member. Alternatively the clenching may be omitted and the ends hooked over flanges or forced into grooves in the frame. Again, hooks may be attached to the reinforced ends of the strips after clenching.
Patent GB-149276-A (GB)
Title: Medical and like vaporizers
IPC: A61M15/00
Filed: 1920-07-14
Abstract: 149,276. Ungelenk, M. Feb. 24, 1915, [Convention date]. Vaporizing by heat. -An appliance for generating and delivering steam, with or without the vapour of disinfectants or medicaments, into the air of a room, and particularly for producing vapours for inhalation, comprises a steamgenerator d heated by a spirit-lamp h, or by electricity supplied through the plug j, and fitted with a perforated collecting. dome k whence the steam passes through a porous mass n and gauze cover p to the atmosphere. Sheets of linen m, o are placed over the steam-dome k and porous mass n respectively. The steam-generator is fitted with a filling-tube f fitted with a combined stopper and safety-valve g. The porous mass preferably consists of a mixture of asbestos, quartz sand, and fire-brick. Disinfectants, medicaments. &c. such as eau de cologne, turpentine, menthol, eucalyptol, phenol, formalin, cypress oil, or balsam of peru may be poured on the gauze cover p of the apparatus, or salt may be strewn thereon.
Patent GB-690993-A (GB)
Title: Improvements in or relating to steam generators
Inventor: BAILEY RICHARD WILLIAM
IPC: F22B1/22
Filed: 1949-08-16
Abstract: 690,993. Steam boilers; drums; desuperheating. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 2, 1950 [Aug. 16, 1949], No. 21333/49. Classes 123 (ii) and 123 (iii) A steam-and-water drum 1 for a forced-flow boiler is of vertical cylindrical shape and is provided at its upper end with a steam separator 3 and at its lower end with a desuperheater 19. The separator 3. has tangentiallyarranged inlet pipes 4, 5, connected to the steam-generating tubes of the boiler, a steam outlet 8, and an internal baffle 7, with perforations 6 which, with a further baffle 9, directs any water passing through the pipes 4, 5 downwardly along the inner wall of the drum. Spaced within the drum is a cylindrical shell 11 which extends to near the bottom thereof, terminates at its upper end in a baffle cap 16 having perforations 17, and is apertured at 14 and provided with a circumferential lip 15 to deflect separated water flowing down the drum wall into a space 23 defined by a second shell 27 which is disposed within the shell 11 and forms with the latter an annular space 24 closed at its bottom and surrounding the superheater 19. The lower end of the shell 11 is fitted with an outlet pipe 25 leading to the boiler recirculating pump, not shown, and both shells 11, 27 are perforated at 30, 31 above the level of the upper ends of the desuperheater, the arrangement being such that feedwater supplied to the drum through a pipe 26 must first pass upwardly around the annular space 24 and then through the perforations 30, 31 and said space, being meanwhile preheated, before reaching the outlet 25. The desuperheater 19 is constituted by inverted-U tubes projecting upwardly from the bottom closing plate 12 of the drum, the plate 12 having a cover 20 forming a divided steam chest with inlet and outlet openings 21, 22 for superheated and desuperheated steam respectively.
Patent GB-1146958-A (GB)
Title: Improvements in or relating to safety belts
IPC: B60R22/28
Filed: 1967-05-09
Abstract: 1,146,958. Safety harness. W. F. COENEN. 9 May, 1967, No. 21409/67. Heading A3V. A safety belt for a motor vehicle, aircraft &c. is folded upon itself and the folded portion enclosed in a sleeve 2 with intermediate members 5 between the plies which collapse when sudden tension is applied to the belt. The sleeve is preferably made of aluminium or synthetic plastics with end walls 4 with slots for the belt. In an alternative embodiment rollers (6), Fig. 2a (not shown), mounted on a collapsable brace (7) are positioned between the folds of the belt. Alternatively only one roller is used and the belt passes round the brace. The sleeve and/or the members 5 may be corrugated or perforated to increase the friction between the belt and the sleeve to further absorb the shock. The sleeve and the intermediate members may be a one-piece synthetic plastics unit.
Patent GB-775626-A (GB)
Title: Driving means for washing machines
IPC: D06F37/36
Filed: 1955-07-25
Abstract: 775,626. Washing-machines. GEHRIG, J. July 25, 1955 [Sept. 16, 1954], No. 21439/55. Class 138 (2). [Also in Group XXIV] A washing machine having a washing and spin-drying drum o which is driven by one motor a during the washing operation and by a second motor b during the spin-drying operation, the shaft b<SP>1</SP> of the motor b being in permanent driving connection with the drum o, while the motor a can be connected to and disconnected from the drum by means of a friction clutch (see Group XXIV) of which one member is formed by an axially displaceable idler d rotatable on the shaft b<SP>1</SP> in driving connection with the motor a, is characterized in that the idler d is displaceable axially by one or more flexible pipes (Fig. 2, not shown), capable of being expanded by internal liquid pressure for the purpose of establishing or interrupting the clutch connection with a member c<SP>1</SP> keyed upon the shaft b<SP>1</SP> and forming the other member of the friction clutch. The member c<SP>1</SP> comprises a flange on a pulley c. The idler d comprises a pulley and the opposed faces of the pulley d and flange c<SP>1</SP> are provided with coupling surfaces to form the clutch. For washing purposes the motor a only is switched on and drives the drum o by means of the pulley a<SP>1</SP>, d, c and p, belts m, n, and the friction clutch. For spin-drying purposes the motor a is switched off and the motor b switched on, the clutch being disengaged. In a modification the clutch is engaged under spring pressure and disengaged by hydraulic pressure. Chain wheels and chains may be employed instead of pulleys and bolts.
Patent GB-1465767-A (GB)
Title: Honing devices
IPC: B24B33/08
Filed: 1974-05-15
Abstract: 1465767 Honing RLK RESEARCH Inc 15 May 1974 [16 May 1973] 21461/74 Heading B3D A hone stone assembly 24 for use with honing heads 10 having stone receiving openings 26 defined by end faces 30, 32 and an internal stone assembly support and expander 20, comprises a synthetic plastic body 34 having an abrasive stone 54 mounted in a cavity 48 in the body, and a resilient cantilevering lip 68 mounted on one end of the body resiliently deflectable in a direction parallel to the longitudinal axis of the body. The head is hollow having a wall 16 and an axial passage 18 for the expander 20 which is formed with a plurality of inclined surfaces 22 for engaging the inner surfaces 36 of respective stone assemblies 24 disposed in the rectangular openings 26 in the wall 16. Each assembly has a synthetic plastic body 34 having an inclined inner or bottom surface 36, top surface 38, side surfaces 40, 42, and a cavity 48 defined by surfaces 50, 52. The stone 54 and its steel backing plate 60 is disposed in the cavity with its working surface 56 aligned with the top surface 38 and one side surface 58 aligned with the side surface 40. One end 44 of the body is formed with a ridge 64 and a lip 68 extends from each side of the ridge. The lips are resiliently deformable so that when the stone assembly is inserted into an opening 26 in the head 10, the lips frictionally engage the end of the opening to firmly retain the assembly in the opening. The side 42 of the body trails the stone 54 during rotation of the head and minimizes wear of the opening. The synthetic plastics material is of styrene-acrylonitrile copolymer. Both ends of the body may be provided with resiliently deformable tyres.
Patent GB-578614-A (GB)
Title: Improvements in the treatment of cereals for human consumption
IPC: A23L7/196
Filed: 1943-12-22
Abstract: 578,614. Treating grain. ROGERS, F. H. (Huzenlaub, E. G.). Dec. 22, 1943, No. 21472. [Class 58] In order to reduce the time necessary for cooking cereal grain, it is subjected to a pretreating process which produces cracks or crazing therein, such process comprising the step of heating the grain to a temperature level at which its latent or imparted moisture content tends to be expelled and then immediately and suddenly cooling the grain. The process, which may be applied to grain such as rice or barley in a milled or partly milled condition, may be carried out under normal atmospheric pressure or under vacuum or pressure. As an example the grain'may be spread over a heated surface or over a heated transport band and raised from 10‹C. to 100‹C., or even more, above atmospheric temperature. A draught of cold air is then caused immediately and suddenly to pass over the grain to produce the cracking or crazing. Alternatively the grain may be heated in a vessel under vacuum and a large valve then opened to admit cool air at a high velocity. The grain may, in another modification, be heated under pressure in a vessel, the pressure being produced by latent or applied moisture in the grain, or the grain may be damped and placed under pressure by admitting steam. Immediately prior to the cooling the pressure is released and relatively cold air admitted. In a further modification the grain from the heated conveyer band or heated vessel is discharged into bins which are naturally or artificially refrigerated.
Patent GB-441852-A (GB)
Title: Improvements in or relating to sash or similar fastening devices
IPC: E05F11/00
Filed: 1934-07-23
Abstract: 441,852. Fastenings. MOFFATT, I. P., The Pharmacy, Fore Street, Hayle, and JAMES, T. F., Rose Farm, Blackwater, Truro, both in Cornwall. July 23, 1934, No. 21483. [Class 44] In various forms of fastening the locking movement of the fastening member proper is effected by an eccentric. Fig. 1 shows a sash fastener in which the member 26, cut away at 28 to provide a hook-like extremity adapted to engage a headed pin 31, is pivotal on a boss 27 formed on an operating lever 25 which is pivoted on a pin 24 eccentric with respect to the boss. Members 25, 26 have thumb pieces 25b, 26<b>. When unfastened, both members lie within the width of sash 20, as shown. To fasten, member 26 is rotated clockwise to engage pin 31, and lever 25 is then given further clockwise movement, so that the eccentric draws the sashes 20, 21 tightly together. In the locked position member 25 lies within the width of sash 20, and is thus inaccessible to a blade inserted between the sashes, and member 26 cannot be directly operated by an inserted blade. Fig. 6 shows a hook fastening suitable for sliding windows. A hooked catch 41 is mounted on a boss 39 formed on an operating lever 38 with thumb-piece 38b, lever 38 being pivoted on a pin 37 eccentric with respect to the boss. Members 38, 41 are kept in close contact by a spring washer, not shown. On sliding window 33 to the left, hook 41 enters a slot 44 in a plate 43. Clockwise rotation of lever 38 first raises the hook into engagement with the curled portion 45 of plate 43, and then draws the frame members 33, 34 tightly together. Fig. 11 shows a fastening in which a bolt-like member 52 is shot into engagement with, or retracted from, a keeper 54 by operation of the eccentric-carrying lever 51 A modified form suitable for furniture &c. is described, in which the eccentric is rotated by a square spindle provided with a drop-handle. Reference has been directed by the Comptroller to Specifications 23184/97, 1329/08, 17401/15, 227,112, 320,244, and 331,773, [all in Class 44].
Patent GB-979518-A (GB)
Title: Variable capacitor with solid dielectric
Filed: 1963-05-29
Abstract: 979,518. Capacitors. R. HALFTERNMEYER. May 29, 1963 [Oct. 23, 1962; Dec. 21, 1962; May 17, 1963], No. 21495/63. Heading H1M. The solid dielectric of a variable capacitor is formed by thin films which are folded in their middles, the films being fixed by the rotor spindle and secured either to the rotor plates or to the stator plates. Fig. 2 shows a stator plate 5a by a dielectric sheet folded along the line 8. A central aperture 11 in the sheet accommodates the rotor spindle, a slot 10 allows a projection 9 to extend from the stator plate, and a slot 12 may be provided to allow the rotor comb (not shown) to bear against the edge 8a of the stator plate, so increasing the useful rotation angle of the rotor. In another arrangement, Figs. 5 and 6 (not shown), the fold in each dielectric sheet is below the lower edge of the stator plates and the sheet is arranged between two adjacent stator plates. The top edges of the sheet are provided at one end with projections adapted to form guide surfaces for the rotor plates. The stator plates, with dielectric sheets in place, may be welded to stator combs, and the heat from the welding may soften the dielectric material to secure it in position. In another arrangement, Figs. 7 and 8 (not shown), the dielectric sheets surround the rotor plates.
Patent GB-601533-A (GB)
Title: Improvements in and relating to driving gear for internal combustion engines
IPC: F01B9/06
Filed: 1945-08-22
Abstract: 601,533. Driving gear for internal-combustion engines. SVANEMOLLE-VAERFTET AKTIESELSKABET. Aug. 22, 1945, No. 21526. Convention date, Dec. 10, 1943. [Class 80 (iii)] [Also in Group XXVII] An internal-combustion engine has a piston 2 connected through a rocking beam 9 to a roller 11 which is spring-urged against a cam track 13 mounted on the power shaft, the pressure of the roller on its cam being maintained constant throughout the cycle by means of a second roller 17 running on a second cam track 19 and connected. to the beam through a torsion bar 16. The relative movement between the two rollers is restricted by means of a pin 21 in a slot 22. For an opposed piston engine, as shown in Fig. 1, the roller 12 also runs on cam 13, but a separate cam is needed to work the corresponding tensioning roller.
Patent GB-1600082-A (GB)
Title: Food processing apparatus
IPC: B01F7/16
Filed: 1978-05-23
Abstract: The device (20) has a lid (70) and bears a mixing deflector blade arrangement (95-99) which can be rotated manually by its middle. This arrangement (95-99) bears a lid scraper (100) which is in contact with the inner surface of the lid (70) and serves to remove particles of food from the inner surface of the lid (70). The central part (80) of the lid (70) is flexible and transparent. The outer part (81) of the lid is rigid so that the central part (80) acts as spring when it is forced by a supporting element (71) against the outer part. The frictional engagement of the lid scraper (100) with the lid (70) and its position relative to the mixing deflector blade (95) prevents free rotation of the mixing deflector blade (95) when the lid (70) is tilted. The lid scraper (100) cleans the lid (70) as it rotates so that the food contents can be tested. The entire arrangement is intended in particular for food processing machines which operate at relatively high speeds of rotation. <IMAGE>
Patent GB-190199-A (GB)
Title: Improvements in valves
IPC: F04B53/10
Filed: 1921-08-15
Abstract: 190,199. Kauffmann, G. J. Aug. 15, 1921. Check lift valves. - A thin light metal pump valve is adapted to rock freely with reference to its guide pin. The valve member 8 has inner and outer outstanding annular embossed contact zone portions 10, 11 which recede sharply on both sides from the contact zones at their tops and are adapted to coact with the inner and outer annular surfaces 12, 13 on a seat 2<a> screwed into the casing 2. The guide pin 5, which carries an abutment 6 for the loading spring 7, is passed through the central aperture of the valve and is screwed into a boss 4 supported by radial ribs 3. In a modification, the plane portion of the valve is enclosed radially to stiffen it.